WO2014175235A1 - Internally illuminated lighting device - Google Patents

Internally illuminated lighting device Download PDF

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Publication number
WO2014175235A1
WO2014175235A1 PCT/JP2014/061218 JP2014061218W WO2014175235A1 WO 2014175235 A1 WO2014175235 A1 WO 2014175235A1 JP 2014061218 W JP2014061218 W JP 2014061218W WO 2014175235 A1 WO2014175235 A1 WO 2014175235A1
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WO
WIPO (PCT)
Prior art keywords
light emitting
planar light
panel
optical member
unit
Prior art date
Application number
PCT/JP2014/061218
Other languages
French (fr)
Japanese (ja)
Inventor
山東　康博
淳弥 若原
伸哉 三木
Original Assignee
コニカミノルタ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by コニカミノルタ株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2015513758A priority Critical patent/JPWO2014175235A1/en
Publication of WO2014175235A1 publication Critical patent/WO2014175235A1/en

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
    • G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent

Definitions

  • the present invention relates to the structure of an internally illuminated lighting device using a plurality of planar light emitting panels.
  • planar light emitting lighting device using organic EL Organic Electroluminescence
  • organic EL Organic Electroluminescence
  • Patent Document 1 proposes a technique for obtaining a large-sized lighting device by arranging a plurality of planar light emitting panels that are easy to manufacture in a plane.
  • a configuration in which the planar light emitting panel can be attached from the front surface of the lighting device is desirable because of restrictions on installation location and ease of maintenance. It is.
  • Patent Document 2 Japanese Patent Laid-Open No. 2012-124159
  • Patent Document 3 A configuration in which a reflective material is disposed in a non-light emitting area in a gap area between the planar light emitting panel and the planar light emitting panel to eliminate a luminance difference (brightness unevenness) between the light emitting area and the non-light emitting area.
  • a reduction in luminance in a gap region (non-light emitting portion) between the planar light emitting panel and the planar light emitting panel when a plurality of planar light emitting panels are arranged is not considered.
  • a luminance difference luminance unevenness
  • an optical member such as a reflective material is directly bonded to the planar light emitting panel.
  • the planar light emitting panel alone or a planar light emitting panel module that combines multiple planar light emitting panels can be replaced in the event of a failure of the planar light emitting panel. difficult.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide an internal illumination device that can reduce the thickness of the device while suppressing the occurrence of uneven brightness.
  • a plurality of planar light emitting units and a support member that supports the planar light emitting unit so as to have a gap region between the plurality of planar light emitting units.
  • An illumination panel that is disposed at a position facing the plurality of planar light emitting units and receives light emitted from the planar light emitting unit; and a light that is disposed in the gap region and is irradiated from the planar light emitting unit.
  • An optical member that reflects toward the lighting panel.
  • the support location of the planar light emitting unit to the support member is provided in the gap region, and the optical member is provided in the gap region so as to cover the support location.
  • an internally-illuminated illumination device that can reduce the thickness of the device while suppressing the occurrence of uneven brightness.
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG. It is a top view which shows the planar light emission panel used for the internal illumination type illuminating device in embodiment.
  • FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. It is a whole perspective view of the planar light emitting module of the internal illumination type illuminating device in an embodiment. It is a front view of the planar light emitting module except the 1st optical member of the internal illumination type illuminating device in embodiment.
  • FIG. 13 is a partially enlarged perspective view of a region surrounded by XIII in FIG. 11. It is a whole perspective view which shows the structure of the optical member with which the internal illumination type illuminating device in embodiment is mounted
  • FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG.
  • FIG. 1 is a front view showing the inside of the internally illuminating device 1
  • FIG. 2 is a cross-sectional view taken along line II-II in FIG.
  • the internally illuminated lighting device 1 in the present embodiment has an illumination panel 60 on the light emitting surface side, and light emitted from a planar light emitting unit 130 described later is emitted from the inner surface of the illumination panel 60 toward the outer surface. .
  • the interior illumination device 1 is housed. Only the front view of the four planar light emitting units 130 is shown.
  • One planar light emitting unit 130 is composed of an area partitioned by AA in FIG. 1, and in this embodiment, four planar light emitting units 130 are combined in a state of 2 rows ⁇ 2 columns.
  • the illumination type illumination device 1 is configured.
  • third optical members 500 (a total of four locations) that reflect the light emitted from the planar light emitting module 100 toward the illumination panel 60 side. Details of the configuration of the planar light emitting unit 130 and the configuration of the third optical member 500 will be described later.
  • One planar light emitting unit 130 (for example, the upper left planar light emitting unit) is configured by combining the planar light emitting modules 100 partitioned by BB in FIG. 1 in a state of 2 rows ⁇ 2 columns.
  • the planar light emitting module 100 is configured by combining the planar light emitting panels 10 in a state of 2 rows ⁇ 2 columns.
  • first optical members 200 (a total of 64 locations) that reflect the light emitted from the planar light emitting panel 10 to the illumination panel 60 side. Yes. Details of the configurations of the planar light emitting module 100 and the planar light emitting panel 10 and the configurations of the second optical member 500 and the first optical member 300 will also be described later.
  • the internally illuminated lighting device 1 of the present embodiment is configured by combining four planar light emitting units 130 in 2 rows ⁇ 2 columns. Furthermore, the planar light emitting unit 130 combines four planar light emitting modules 100 in a state of 2 rows ⁇ 2 columns. Furthermore, the planar light emitting module 100 combines four planar light emitting panels 10 in a state of 2 rows ⁇ 2 columns.
  • the illumination panel 60 is located on the most surface side of the internally illuminated illumination device 1.
  • the illumination panel 60 is supported by a housing 600 (see FIG. 11) as an example of a support member.
  • the housing 600 is fixed to a wall surface not shown.
  • the lighting panel 60 is made of a light-transmitting material, and generally an acrylic resin or the like is used.
  • a member having a light scattering effect may be used in order to suppress the occurrence of luminance unevenness.
  • the planar light emitting panel 10 is fixed to the module panel 54 constituting the planar light emitting module 100 using a double-sided tape 120 or the like (see FIG. 5).
  • the planar light emitting module 100 is attached to the unit panel 70 constituting the planar light emitting unit 130 (see FIG. 8). This mounting structure will be described later.
  • the first optical member 200 is attached to the module panel 54 in a gap region 54 s formed between the planar light emitting panel 10 and the adjacent planar light emitting panel 10.
  • the second optical member 300 is attached to the unit panel 70 in a gap area 70 s of the unit panel 70 generated between the light emitting module 100 and the adjacent light emitting module 100.
  • Each of the first optical member 200 and the second optical member 300 has a substantially trapezoidal shape in which the cross-sectional shape is located on the illumination panel 60 side, and the light emitted from the planar light emitting panel 10 is directed to the illumination panel 60 side. reflect. Thereby, generation
  • planar light emitting panel 10 (Surface emitting panel 10) With reference to FIG. 3 and FIG. 4, the structure of the planar light emission panel 10 in this Embodiment is demonstrated.
  • the planar light emitting panel 10 in the present embodiment is composed of an organic EL.
  • the planar light emitting panel 10 may be configured as a planar planar light emitting panel from a plurality of light emitting diodes (LEDs) and a diffusion plate, or as a planar planar light emitting panel using a cold cathode tube or the like. It may be configured.
  • FIG. 3 is a plan view showing the planar light-emitting panel 10.
  • FIG. 3 shows a state when the planar light emitting panel 10 is viewed from the back surface 19 side of the planar light emitting panel 10.
  • 4 is a cross-sectional view taken along line IV-IV in FIG.
  • the planar light emitting panel 10 includes a transparent substrate 11 (cover layer), an anode 14, an organic layer 15, a cathode 16, a sealing member 17, and an insulating layer 18.
  • the transparent substrate 11 forms the surface 12 (light emitting surface) of the planar light emitting panel 10, and the outer peripheral end surface of the transparent substrate 11 forms the outer periphery 10E of the planar light emitting panel 10.
  • the anode 14, the organic layer 15, and the cathode 16 are sequentially stacked on the back surface 13 of the transparent substrate 11.
  • the sealing member 17 forms the back surface 19 of the planar light emitting panel 10.
  • the transparent substrate 11 is composed of various glass substrates, for example.
  • a film substrate such as PET (Polyethylene Terephthalate) or polycarbonate may be used.
  • the anode 14 is a conductive film having transparency.
  • ITO Indium Tin Oxide
  • the anode 14 is formed by patterning the ITO film into a predetermined shape by photolithography or the like.
  • the anode 14 is divided into two regions by patterning to form an electrode extraction portion 21 (for anode) and an electrode extraction portion 22 (for cathode).
  • the organic layer 15 (light emitting unit) can generate light (visible light) by being supplied with electric power.
  • the organic layer 15 may be composed of a single light emitting layer, or may be composed of a hole transport layer, a light emitting layer, a hole blocking layer, an electron transport layer, and the like that are sequentially laminated.
  • the cathode 16 is, for example, aluminum (AL).
  • the cathode 16 is formed so as to cover the organic layer 15 by a vacuum deposition method or the like. In order to pattern the cathode 16 into a predetermined shape, a mask may be used during vacuum deposition.
  • An insulating layer 18 is provided between the cathode 16 and the anode 14 on the electrode extraction part 21 side so that the cathode 16 and the anode 14 are not short-circuited.
  • the part of the cathode 16 opposite to the side on which the insulating layer 18 is provided is connected to the anode 14 on the electrode extraction part 22 side.
  • the insulating layer 18 is formed in a desired pattern so as to cover a portion that insulates the anode 14 and the cathode 16 from each other using a photolithography method or the like after, for example, a SiO 2 film is formed using a sputtering method. .
  • the sealing member 17 is made of an insulating resin or a glass substrate.
  • the sealing member 17 is formed to protect the organic layer 15 from moisture and the like.
  • the sealing member 17 seals substantially the whole of the anode 14, the organic layer 15, and the cathode 16 (that is, a member provided inside the planar light emitting panel 10) on the transparent substrate 11. A part of the anode 14 is exposed from the sealing member 17 for electrical connection.
  • the portion exposed from the sealing member 17 of the anode 14 constitutes an electrode extraction portion 21 (for anode).
  • the electrode extraction part 21 and the anode 14 are made of the same material.
  • the electrode extraction portion 21 is located on the outer periphery of the planar light emitting panel 10.
  • the portion of the cathode 16 exposed from the sealing member 17 (on the right side in FIG. 4) constitutes an electrode extraction portion 22 (for cathode).
  • the electrode extraction part 22 and the anode 14 are made of the same material.
  • the electrode extraction portion 22 is also located on the outer periphery of the planar light emitting panel 10.
  • the electrode extraction part 21 and the electrode extraction part 22 are located on opposite sides of the organic layer 15.
  • a divided region 20 (see FIG. 3) is formed between adjacent electrode extraction portions 21 and electrode extraction portions 22.
  • a wiring pattern (not shown) is attached to the electrode extraction portion 21 and the electrode extraction portion 22 using soldering (silver paste) or the like.
  • the surface 12 of the planar light emitting panel 10 configured as described above is a light emitting region. Electric power is supplied to the organic layer 15 of the planar light emitting panel 10 from an external power supply device through a wiring pattern (not shown), the electrode extraction parts 21 and 22, the anode 14 and the cathode 16. The light generated in the organic layer 15 is extracted from the surface 12 (light emitting surface) to the outside through the anode 14 and the transparent substrate 11.
  • the transparent substrate 11 is a transparent film such as polyimide, polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polystyrene (PS), polyethersulfone (PES), polycarbonate (PC ), Polypropylene (PP) or the like.
  • PEN polyethylene naphthalate
  • PET polyethylene terephthalate
  • PS polystyrene
  • PS polyethersulfone
  • PC polycarbonate
  • PP Polypropylene
  • the anode 14 is made of a light transmissive material such as indium titanium oxide (ITO) or polyethylenedioxythiophene (PEDOT).
  • ITO indium titanium oxide
  • PEDOT polyethylenedioxythiophene
  • aluminum (Al), lithium fluoride (LiF), a stack of Al and Ca, a stack of Al and LiF, a stack of Al and Ba, or the like is used.
  • the sealing member 17 is formed by laminating a plurality of layers of an inorganic thin film such as SiO 2 , AL 2 O 3 , SiNx, and a flexible acrylic resin thin film on a film such as PET, PEN, PS, PES, and polyimide. Thus, those having gas barrier properties are used. Gold, silver, copper, or the like may be further laminated on the electrode extraction portion 21 and the electrode extraction portion 22.
  • FIG. 5 is an overall perspective view of the planar light emitting module 100
  • FIG. 6 is a front view of the planar light emitting module 100 excluding the first optical member 200 of the internal illumination device 1
  • FIG. 7 is the first optical member 200. It is a whole perspective view which shows the structure.
  • planar light emitting module 100 a total of four planar light emitting panels 10 are fixed on module panel 54 in 2 rows ⁇ 2 columns using double-sided tape 120. .
  • the planar light emitting panel 10 has a square size of 100 mm ⁇ 100 mm.
  • the interval between the planar light emitting panel 10 adjacent to the top, bottom, left, and right and the gap region 54s is 16 mm. Arbitrary dimensions are selected for the size of the planar light emitting module 100 and the gap 54s according to the specifications of the internal illumination device 1.
  • the cross-shaped first optical member 200 is attached to the gap region 54s of the module panel 54 in a plan view.
  • positioning holes 54a, 54b, 54c, 54d used for fixing the planar light emitting module 100 to the planar light emitting unit 130 described later, and Fixing holes 54e, 54f, 54g, and 54h are provided.
  • the positioning holes 54a and 54b long holes are formed in order to make it easy to absorb manufacturing errors of components.
  • positioning pins 54i, 54k, 54m, 54p used for attaching the first optical member 200 are erected in the gap region 54s of the module panel 54, and fixing holes 54j, 54l, 54n, 54q are provided. An internal thread is formed in the fixing holes 54j, 54l, 54n, 54q.
  • the first optical member 200 can be attached to the planar light emitting module 100 from the light emitting surface side.
  • FIG. 7 is an overall perspective view showing the structure of the first optical member 200.
  • the first optical member 200 has a cross-shaped base member 201 in plan view. At the four ends of the base member 201, there are positions corresponding to the positioning pins 54i, 54k, 54m, 54p provided on the module panel 54 and the fixing holes 54j, 54l, 54n, 54q, respectively.
  • a positioning hole 201a and a fixing hole 201b are formed.
  • Positioning pins 54i, 54k, 54m, 54p provided on the module panel 54 are fitted into the positioning holes 201a, so that the first optical member 200 can be positioned.
  • the base member 201 can be fixed to the gap region 54s of the module panel 54 from the light emitting surface side by using bolts from the light emitting surface side using the fixing holes 201b.
  • the first optical member 200 includes a reflecting member 210 having a substantially trapezoidal shape in which the top portion is located on the illumination panel 60 side.
  • the reflection member 210 is provided with a screw hole 210a.
  • the base member 201 is provided with a standing wall portion 202 that supports the reflecting member 210, and the standing wall portion 202 is provided with a fixing female screw hole 202 a at a position corresponding to the screw hole 210 a of the reflecting member 210. After fixing the base member 201 to the module panel 54, the reflection member 210 can be fixed to the base member 201 from the light emitting surface side using the screws 230.
  • the inclination angle of the slope of the first optical member 200 is, for example, 45 °.
  • the value of the apex angle may be appropriately changed between 30 ° and 90 °.
  • the luminance reduction of the non-light emitting portion is suppressed and uniform light emission is realized. Furthermore, by disposing the first optical member 200 in the gap region 54S, even light emission can be performed even if the gap region of the planar light emitting panel 10 is widely arranged. Therefore, the planar light emitting panel 10 used in the lighting device. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed.
  • the first optical member 200 is fixed to the gap region 54s using the fixing hole 201b of the base member of the first optical member 200, the fixing portion is covered with the reflecting member 210 and is not visible from the light emitting surface side. . In addition, it is desirable that the light emitted from the planar light emitting panel 10 is arranged so as not to be blocked by a member for fixing the first optical member 200.
  • FIGS. 8 is a perspective view of the planar light emitting unit 130
  • FIG. 9 is a front view of the planar light emitting unit 130 excluding the planar light emitting module 100 and the second optical member 300
  • FIG. 10 is the structure of the second optical member 300.
  • a total of four planar light emitting modules 100 are supported on a unit panel 70 in 2 rows ⁇ 2 columns.
  • the areas where the four planar light emitting modules 100 are attached are shown so that the areas where the four planar light emitting panels are arranged and the gap area 70 s between the light emitting panels can be seen.
  • Four second optical members 300 are attached to the four gap regions 70 s of the unit panel 70.
  • the interval of 70 s is set to 16 mm, which is the same as the gap region 54 s between the light emitting panels 100.
  • the area where each of the four planar light emitting modules 100 is attached to the unit panel 70 corresponds to the fixing holes 54e, 54f, 54g, 54h (see FIG. 6) of the module panel 54.
  • Fixing female screw holes (tap holes) 71, 72, 73, 74 are provided at the positions where the fixing is performed.
  • Positioning pins 71p, 72p, 73p, 74p are erected at positions corresponding to the positioning holes 54a, 54b, 54c, 54d (see FIG. 6) of the module panel 54.
  • fixing female screw holes (tap holes) 81 and 82 for attaching the second optical member 300 are provided in the gap areas 70 s of the four positions of the unit panel 70. Furthermore, positioning pins 83 and 84 are provided upright in the gap area 70s for positioning when the second optical member 300 is attached.
  • Engagement shafts 75 are respectively provided on the right side and left side of the outer edge of the unit panel 70, and in the central area of each planar light emitting module 100 in the area where each planar light emitting module 100 is provided.
  • Side brackets 76 for attaching the third optical member 500 are provided at two corresponding positions (two on the right side and two on the left side).
  • the side bracket 76 is formed with a daruma hole 76a and a fixing hole 76b, respectively. It should be noted that in the side bracket 76 on the right side and the side bracket 76 on the left side, the position of the portion with the darling hole 76a is upside down with respect to the fixing hole 76b, and two planar shapes are provided.
  • the light emitting units 130 are arranged side by side, the positions of the side holes 76 on the right side and the side brackets 76 a on the left side are shifted.
  • the third optical member 500 is provided at two positions corresponding to the central region of each planar light emitting module 100 in the region where the planar light emitting module 100 is provided.
  • a lower bracket 77 is provided for attaching the.
  • the lower bracket 77 is formed with a daruma hole 77a.
  • FIG. 10 is an overall perspective view showing the structure of the second optical member 300.
  • the second optical member 300 has a substantially single-character reflecting surface 301 in plan view.
  • fixing holes 305a and 305b are formed at positions corresponding to fixing female screw holes (tap holes) 81 and 82 and positioning pins 83 and 84 provided in the unit panel 70, respectively.
  • Bracket 305 is provided. Using the fixing hole 305a, the second optical member 300 can be fixed to the gap region 70s of the unit panel 70 using a bolt from the light emitting surface side. Positioning pins 83 and 84 provided in the unit panel 70 are engaged with the positioning hole 305b, and the second optical member 300 can be positioned.
  • the bracket 305 may be formed by cutting and bending a part of a base member (not shown) plate of the second optical member 300.
  • the second optical member 300 has a reflective surface 301 having a substantially trapezoidal shape with a top portion located on the illumination panel 60 side in cross section.
  • the inclination angle of the inclined surface of the reflection surface 301 is, for example, 45 °.
  • the value of the apex angle may be appropriately changed between 30 ° and 90 °.
  • the inclination angles of the reflecting surfaces of the first optical member 200 and the second optical member 300 are provided to be the same.
  • an inclined side 302 that comes into contact with the other second optical member 300 at the center portion of the unit panel 70 is provided.
  • a connecting portion 304 that contacts the end portion of the first optical member 200 is provided.
  • the other end portion of the second optical member 300 is provided with a vertical side 303 located on the outer edge side of the unit panel 70.
  • the second optical member 300 By using the second optical member 300, similarly to the first optical member, the luminance reduction of the non-light emitting portion (gap region 70 ⁇ / b> S) is suppressed and uniform light emission is realized. Further, by arranging the second optical member 300 in the gap area 70s, even light emission can be performed even if the gap area of the planar light emitting module 100 is widely arranged. Therefore, the planar light emitting module 100 used in the lighting device. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed.
  • the positioning pins 83 and 83 and the fixing female screw holes 81 and 82 in the gap region between the bracket 305 and the unit panel 70 for fixing the second optical member 300 are covered with the reflection surface 301 of the second optical member, The fixed part is not visible from the light emitting surface side. Further, the light emitted from the planar light emitting module 100 is not blocked by the member for fixing the second optical member 300.
  • the module panel 54 to which the planar light emitting panel 10 is attached is attached to the unit panel 70.
  • the positioning pins 71p, 72p, 73p, and 74p provided on the unit panel 70 are inserted into the positioning holes 54a, 54b, 54c, and 54d of the module panel 54, and the module panel 54 is attached.
  • the panel 54 is positioned.
  • the first optical member 200 is attached to the module panel 54 from the light emitting surface side.
  • the positioning holes 201a of the base member 201 of the first optical member are inserted into the positioning pins 54i, 54k, 54m, 54p provided on the module panel 54, so that the first optical member 200 is attached.
  • the optical member 200 is positioned.
  • a bolt is inserted into the fixing hole 201a provided in the base member 201 of the first optical member 200, and the bolt is screwed using the fixing holes 54i, 54l, 54n, 54p of the module panel 54.
  • the 1st optical member 200 is attached to the clearance gap area
  • the second optical member 300 is attached to the unit panel 70 from the light emitting surface side.
  • the second optical member is arranged such that the inclined side 302 is in contact with the other second optical member 300 and the vertical side 303 is on the outer edge side of the unit panel 70. Decide.
  • the positioning pins 83 and 84 provided on the unit panel 70 are engaged with the positioning holes 305b of the bracket 305 of the second optical member 300 to position the second optical member 300, and the bracket 305 is fixed.
  • Bolts are inserted into the holes 305 a from the light emitting surface side, and the second optical member 300 is fixed to the gap region 70 s of the unit panel 70.
  • the second optical member 300 is attached to the gap region 70s of the unit panel 70, and the planar light emitting unit 130 is completed.
  • FIGS. 11 to 13 are front views showing the structure of the housing 600
  • FIG. 12 is a front view showing a state in which the planar light emitting unit 130 is attached to the housing 600
  • FIG. 13 is an area surrounded by XIII in FIG. It is a partial expansion perspective view.
  • the housing 600 has a frame frame 601, and the frame frame 601 is provided with three bars 602 extending in the vertical direction.
  • aluminum material is used for the frame frame 601 and the crosspiece 602 from the viewpoint of strength and overall mass, but other materials may be used.
  • Each of the crosspieces 602 is provided with engagement hooks 603 at the upper end portion and the middle step portion, respectively.
  • a fixing base 604 is provided below the engagement hook 603.
  • the fixing base 604 is provided with a fixing female screw hole 604a.
  • the hook 603 is provided on the crosspiece 602, and the engaging shaft 75 of the planar light emitting unit 130 is hooked on the protruding portion of the engaging hook, whereby the planar light emitting unit. 130 is suspended.
  • a state in which the planar light emitting unit 130 is suspended from one half of the protruding portion of the engagement hook 603 is shown, but the planar light emitting unit 139 is similarly suspended from the other half of the protruding portion. be able to.
  • the engagement hook 603 and the engagement shaft 75 are engaged so that a gap region 610s is provided between adjacent planar light emitting units 130, and the third optical member is engaged with the gap region 610s. 500 (4 places in total) are arranged.
  • the width of the gap region 610s is set to be the same width as the gap region 54s in the surface light emitting module and the gap region 70s in the planar light emitting unit 130.
  • FIG. 12 shows a state in which the planar light emitting units 130 are attached to the housing 600 in 2 rows ⁇ 2 columns.
  • the third optical member 500 will be described with reference to FIG.
  • FIG. 14 is an overall perspective view showing the structure of the third optical member 500.
  • the third optical member 500 has a reflective surface 501 having a substantially single character shape in plan view.
  • the reflective surface 501 is provided with a grooved pin 510 at a position corresponding to a saddle hole 76 a provided in the side bracket 76 of the unit panel 70 or a saddle hole 77 a provided in the lower bracket 77.
  • the third optical member 500 can be easily attached to the side bracket by inserting the grooved pin 510 from the light emitting surface side into the groove holes 76a and 77a and sliding the small diameter portions of the hole holes 76a and 77a into the groove portion of the grooved pin 510. 76 and the lower bracket 77. In this manner, the third optical member (a total of four places in the case where the number of the planar light emitting units 130 is 2 rows ⁇ 2 columns is 4) is arranged in the gap area 610s between the adjacent planar light emitting units.
  • the third optical member 500 has a reflecting surface 501 having a substantially trapezoidal shape in which the top portion is positioned on the illumination panel 60 side.
  • the inclination angle of the inclined surface of the reflection surface 501 is, for example, 45 °.
  • the value of the apex angle may be appropriately changed between 30 ° and 90 °.
  • the inclination angles of the reflecting surfaces of the first optical member 200, the second optical member 300, and the third optical member 500 are provided to be the same.
  • the third optical member 500 is provided with connecting portions 502 that come into contact with the ends of the other optical members (the first optical member 200 or the second optical member 300) of the planar light emitting unit 130 at three locations.
  • the third optical member 500 By using the third optical member 500, as in the first and second optical members, the luminance reduction of the non-light emitting portion (gap region between the planar light emitting units 130) is suppressed and uniform light emission is realized. Furthermore, by arranging the third optical member 500 in the gap area, even light emission is possible even if the gap area of the planar light emitting unit 130 is wide, so that the planar light emitting unit 130 used in the illumination device can be illuminated. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed.
  • the fixing portion can be seen from the light emitting surface side. Absent. Further, the light emitted from the planar light emitting module 100 is not blocked by these fixing members.
  • a bolt is inserted into the fixing hole 76 b of the side bracket 76 provided in the planar light emitting unit 130 from the light emitting surface side, and the bolt is inserted into the fixing female screw hole 604 a provided in the fixing base 604 of the crosspiece 602. Screw together. Thereby, fixation to the housing 600 of the planar light emitting unit 130 is completed.
  • the grooved pin 510 of the third optical member 500 is inserted into the saddle hole 76 a provided in the side bracket 76 of the unit panel 70 or the saddle hole 77 a provided in the lower bracket 77. Then, the third optical member 500 is slid in the small diameter direction of the saddle hole 76a. As a result, the small diameter portions of the saddle holes 76a and 77a engage with the groove portion of the grooved pin 510. Thereby, the third optical member 500 is fixed to the side bracket 76 and the lower bracket 77 of the planar light emitting unit 130. Thereafter, the lighting panel 60 is fixed to the light emitting surface side of the housing 600.
  • the planar light emitting panel 10 has the plurality of planar light emitting panels 10 and the gap regions 54s between the plurality of planar light emitting panels 10.
  • the planar light emitting module 100 having the module panel 54 that supports the planar light emitting module and the planar light emitting module having the unit panel 70 that supports the planar light emitting module 100 so as to have a gap region 70s between the plurality of planar light emitting modules 100.
  • the first optical member 100 that reflects the light emitted from the illumination panel 60 toward the illumination panel 60 side
  • the second optical member that is disposed in the gap area 70s and reflects the light emitted from the planar light emitting module 100 toward the illumination panel 60 side.
  • 300 and a third optical member 500 that is disposed in the gap region 610s and reflects the light emitted from the planar light emitting unit 500 to the illumination panel 60 side.
  • the place where the planar light emitting unit 130 is supported by the housing 600 (the engaging shaft 75 and the fixing hole 76b in FIG. 9) is provided in the gap region 610s.
  • support portions (dar holes 76a and 77a) for the side bracket 76 or the lower bracket 77 of the planar light emitting unit 130 of the third optical member 500 are also provided in the gap region 610s. Therefore, by attaching the third optical member 500, the support location to the housing of the surface emitting unit 130 and the support location to the side bracket 76 or the lower bracket 77 of the third optical member in the gap region 61s are covered. .
  • the lighting device can be thinned.
  • the third optical member 500 can be fixed simply by inserting and sliding the grooved pin 510 of the planar light emitting unit 130 into the side holes 76 or the round holes 76 a and 77 a of the lower bracket 77.
  • the planar light emitting unit 130 is attached to the housing 600 by engaging the engaging shaft 75 with the engaging hook 603 from the light emitting surface side and fixing it using the fixing hole 76b of the side bracket 76. It is done by.
  • the third optical member 500 and the planar light emitting unit can be easily attached and detached from the lighting panel side. When either the third optical member 500 or the planar light emitting unit 130 breaks down or wears out, the lighting panel side It can be easily replaced.
  • the internally illuminating device 1 using the plurality of planar light emitting units 130 according to the present embodiment it is possible to reduce the thickness of the device while suppressing the occurrence of uneven brightness.
  • the lighting device 1 can be provided. Thereby, it becomes possible to improve the designability and functionality of the internal illumination device 1.
  • the third optical member 500 is detachably supported from the illumination panel 60 side with respect to the planar light emitting unit 130.
  • the planar light emitting unit 130 is also detachably supported from the lighting panel 60 side with respect to the housing 600.
  • the 2nd optical member 300 and the 1st optical member 200 can also be attached or detached from the illumination panel 60 side. Thereby, it is possible to provide the internally illuminated lighting device 1 that facilitates the replacement work and maintenance work of the planar light emitting unit 130 and the optical members 500, 300, and 200 (reduction of man-hours).
  • FIG. 15 is a front view of a planar light emitting module 100A excluding the first optical member in another embodiment
  • FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG.
  • magnets 541e, 541f, 541g, 541h are embedded in the module panel 54 in advance instead of the fixing holes 54e, 54f, 54g, 54h provided in the module panel 54 in the first embodiment. It is. By embedding the magnets 541e, 541f, 541g, and 541h in the gap region 54S between the planar light emitting panels 10, the thickness of the planar light emitting module 100 does not increase.
  • the module panel 54 can be easily fixed to the unit panel 70 from the light emitting surface side by arranging the magnet in advance at the position where the module panel 54 is fixed to the unit panel 70.
  • a bolt may be erected in place of the fixing female screw hole and fixed with a nut for the portion using the fixing female screw hole.
  • each part can be attached and replaced from the light emitting surface side by adopting a structure in which a magnet is arranged at a place to be fixed using a screw and fixed based on a magnetic force. Work can be done.
  • the minimum unit of planar light emission is the planar light emitting panel 10 (see FIG. 3), and then the planar light emitting module 100 (planar light emitting panel 10) is configured by combining four planar light emitting panels 10 next.
  • a configuration in which four planar light emitting modules 100 are combined is a planar light emitting unit 130 (16 planar light emitting panels 10), and four planar light emitting units 130 are combined.
  • the configuration is defined as an internally-illuminated lighting device (the number of planar light emitting panels 10 is 64), it can also be defined as follows.
  • planar light emitting panel 10 of the minimum unit is defined as a planar light emitting module (one planar light emitting panel 10)
  • a configuration in which four planar light emitting modules are combined becomes a planar light emitting unit.
  • the planar light-emitting panel 10 is four sheets
  • a configuration in which four planar light-emitting units are combined is an internally illuminated illumination device (16 planar light-emitting panels 10).
  • planar light-emitting unit 130 When the planar light-emitting unit 130 is defined as a planar light-emitting module (16 planar light-emitting panels 10), a configuration in which four planar light-emitting modules are combined becomes a planar light-emitting unit (planar light-emitting unit).
  • the panel 10 has 64 sheets), and the configuration in which four of the planar light emitting units are combined is an internally illuminated lighting device (the planar light emitting panel 10 has 256 sheets).
  • planar light emitting unit 130 a configuration in which four planar light emitting modules 100 are combined is referred to as a planar light emitting unit 130, and a configuration in which the planar light emitting unit 130 is supported by a housing 600 as a support member is employed. It is not limited to. It is also possible to adopt a configuration in which a plurality of planar light emitting modules 100 are directly supported by a housing 600 as a supporting member without using the unit panel 70. It is possible to employ a configuration in which the unit panel 70 is used as a support member and the housing 600 is not used.
  • the light source is not limited to an organic EL panel, and a planar planar light-emitting panel (light source) can also be used. Generally, a large number of planar rigid panels, flexible panels, and a plurality of planar shapes.
  • the present invention can also be applied to a light-emitting panel obtained by modularizing a light-emitting panel, or a general flexible panel, and a light source having high availability can be selected and used according to the application.

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
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  • Electroluminescent Light Sources (AREA)
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Abstract

This internally illuminated lighting device (1) comprises: a plurality of planar light-emitting units (130); a supporting member for supporting the planar light-emitting units (130) so that gap regions are present between the planar light-emitting units (130); an illumination panel disposed at a position facing the planar light-emitting units (130) and receiving light emitted from the planar light-emitting units (130); and an optical member (500) disposed in the gap regions and reflecting the light emitted from the planar light-emitting units (130) to the side of the illumination panel. The supporting positions at which the planar light-emitting units (130) is supported by the supporting member are provided in the gap regions, and the optical member (500) is provided in the gap regions so as to cover the supporting positions.

Description

内照式照明装置Internal illumination system
　本発明は、複数の面状発光パネルを用いた内照式照明装置の構造に関する。 The present invention relates to the structure of an internally illuminated lighting device using a plurality of planar light emitting panels.
　近年、有機ＥＬ（Organic　Electroluminescence）等を利用した面状発光の照明装置が提案されている。この照明装置を大型化しようとした場合、面状発光パネル（面状発光素子）を構成する基板を大型化することで対応できる。 Recently, a planar light emitting lighting device using organic EL (Organic Electroluminescence) has been proposed. When it is going to enlarge this illuminating device, it can respond by enlarging the board | substrate which comprises a planar light emission panel (planar light emitting element).
　しかし、製造装置の大型化、製造における歩留まりの悪化等の問題が発生する。製造が容易な大きさの面状発光パネルを複数平面状に並べることによって、大型化の照明装置を得る技術が、特開２００５－２６６２８５号公報（特許文献１）に提案されている。 However, problems such as an increase in the size of manufacturing equipment and deterioration in manufacturing yield occur. Japanese Unexamined Patent Application Publication No. 2005-266285 (Patent Document 1) proposes a technique for obtaining a large-sized lighting device by arranging a plurality of planar light emitting panels that are easy to manufacture in a plane.
　面状発光パネルを複数並べた（タイリングした）照明装置等の場合には、設置場所の制約およびメンテナンスの容易さから、照明装置の前面から面状発光パネルの取り付けが可能である構成が望まれる。 In the case of a lighting device or the like in which a plurality of planar light emitting panels are arranged (tiled), a configuration in which the planar light emitting panel can be attached from the front surface of the lighting device is desirable because of restrictions on installation location and ease of maintenance. It is.
　さらに、意匠上および建築上の理由から、照明装置の厚さを抑えたい場合があり、厚みを抑えることができる照明装置が、特開２０１２－１２４１５９号公報（特許文献２）に提案されている。 Furthermore, there is a case where it is desired to suppress the thickness of the lighting device for design and architectural reasons, and a lighting device capable of suppressing the thickness is proposed in Japanese Patent Laid-Open No. 2012-124159 (Patent Document 2). .
　しかしながら、特許文献１に開示される照明装置では、複数配置した面状発光パネルと面状発光パネルとの間の隙間領域に生じる非発光領域と面状発光パネルの発光領域との間で輝度差（輝度ムラ）が発生する。その結果、均一な面状発光を有する照明装置を提供することが困難となる。 However, in the lighting device disclosed in Patent Document 1, a luminance difference is generated between a non-light-emitting region and a light-emitting region of the planar light-emitting panel that are generated in a gap region between the plurality of planar light-emitting panels and the planar light-emitting panel. (Brightness unevenness) occurs. As a result, it is difficult to provide a lighting device having uniform planar light emission.
　面状発光パネルと面状発光パネルとの間の隙間領域における非発光領域に反射材を配置して、発光領域と非発光領域との間の輝度差（輝度ムラ）を解消する構成が、特開２０１０－０３３８１８号公報に提案されている（特許文献３）。 A configuration in which a reflective material is disposed in a non-light emitting area in a gap area between the planar light emitting panel and the planar light emitting panel to eliminate a luminance difference (brightness unevenness) between the light emitting area and the non-light emitting area. This is proposed in Japanese Unexamined Patent Application Publication No. 2010-033818 (Patent Document 3).
特開２００５－２６６２８５号公報JP 2005-266285 A 特開２０１２－１２４１５９号公報JP 2012-124159 A 特開２０１０－０３３８１８号公報JP 2010-033818 A
　しかし、特許文献２に開示される構成では、照明装置の厚みを抑制することができても、面状発光パネルを保持する部材が発光パネルの背面側に位置しているため、照明装置の薄型化には制約があり十分な薄型化が困難である。 However, in the configuration disclosed in Patent Document 2, even if the thickness of the lighting device can be suppressed, the member that holds the planar light-emitting panel is located on the back side of the light-emitting panel. It is difficult to reduce the thickness sufficiently due to restrictions.
　さらに、面状発光パネルを複数配置した場合の面状発光パネルと面状発光パネルとの間の隙間領域（非発光部）の輝度低下について考慮されていない。その結果、照明装置全体として輝度差（輝度ムラ）が発生する。 Furthermore, a reduction in luminance in a gap region (non-light emitting portion) between the planar light emitting panel and the planar light emitting panel when a plurality of planar light emitting panels are arranged is not considered. As a result, a luminance difference (luminance unevenness) occurs in the entire lighting device.
　特許文献３に開示される構成では、反射材などの光学部材は、面状発光パネルに直接接着されている。光学部材を面状発光パネルに直接接着する構成の場合、面状発光パネルの故障などの時に面状発光パネル単体、または、面状発光パネルを複数枚個組み合わせた面状発光パネルモジュールの交換が難しい。 In the configuration disclosed in Patent Document 3, an optical member such as a reflective material is directly bonded to the planar light emitting panel. In the case where the optical member is directly bonded to the planar light emitting panel, the planar light emitting panel alone or a planar light emitting panel module that combines multiple planar light emitting panels can be replaced in the event of a failure of the planar light emitting panel. difficult.
　この発明は上記課題に鑑みてなされたものであり、輝度ムラの発生を抑制しながら装置の薄型化を図ることを可能とする内照式照明装置を提供することを目的とする。 The present invention has been made in view of the above problems, and an object of the present invention is to provide an internal illumination device that can reduce the thickness of the device while suppressing the occurrence of uneven brightness.
　この発明に基づいた内照式照明装置においては、複数の面状発光ユニットと、複数の上記面状発光ユニットの相互の間に隙間領域を有するように上記面状発光ユニットを支持する支持部材と、複数の上記面状発光ユニットと対向する位置に配置され、上記面状発光ユニットから照射される光を受ける照明パネルと、上記隙間領域に配置され、上記面状発光ユニットから照射された光を照明パネル側に反射する光学部材と、を備える。 In the internal illumination device according to the present invention, a plurality of planar light emitting units, and a support member that supports the planar light emitting unit so as to have a gap region between the plurality of planar light emitting units. An illumination panel that is disposed at a position facing the plurality of planar light emitting units and receives light emitted from the planar light emitting unit; and a light that is disposed in the gap region and is irradiated from the planar light emitting unit. An optical member that reflects toward the lighting panel.
　上記面状発光ユニットの上記支持部材への支持箇所は、上記隙間領域に設けられ、上記光学部材は、上記支持箇所を覆うようにして上記隙間領域に設けられている。 The support location of the planar light emitting unit to the support member is provided in the gap region, and the optical member is provided in the gap region so as to cover the support location.
　この発明によれば、輝度ムラの発生を抑制しながら装置の薄型化を図ることを可能とする内照式照明装置を提供することを可能とする。 According to the present invention, it is possible to provide an internally-illuminated illumination device that can reduce the thickness of the device while suppressing the occurrence of uneven brightness.
実施の形態における内照式照明装置の内部を示す正面図である。It is a front view which shows the inside of the internal illumination type illuminating device in embodiment. 図１中ＩＩ－ＩＩ線矢視断面図である。FIG. 2 is a cross-sectional view taken along line II-II in FIG. 実施の形態における内照式照明装置に用いられる面状発光パネルを示す平面図である。It is a top view which shows the planar light emission panel used for the internal illumination type illuminating device in embodiment. 図３中ＩＶ－ＩＶ線矢視断面図である。FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 3. 実施の形態における内照式照明装置の面状発光モジュールの全体斜視図である。It is a whole perspective view of the planar light emitting module of the internal illumination type illuminating device in an embodiment. 実施の形態における内照式照明装置の第１光学部材を除く面状発光モジュールの正面図である。It is a front view of the planar light emitting module except the 1st optical member of the internal illumination type illuminating device in embodiment. 実施の形態における内照式照明装置の面状発光モジュールに装着される第１光学部材の構造を示す全体斜視図である。It is a whole perspective view which shows the structure of the 1st optical member with which the planar light emission module of the internal illumination type illuminating device in embodiment is mounted | worn. 実施の形態における内照式照明装置の面状発光ユニットの斜視図である。It is a perspective view of the planar light emitting unit of the internal illumination type illumination device in the embodiment. 実施の形態における内照式照明装置の面状発光モジュールおよび第２光学部材を除く面状発光ユニットの正面図である。It is a front view of a planar light emitting unit excluding the planar light emitting module and the second optical member of the internally illuminated illumination device in the embodiment. 実施の形態における内照式照明装置の面状発光ユニットに装着される第２光学部材の構造を示す全体斜視図である。It is a whole perspective view which shows the structure of the 2nd optical member with which the planar light emission unit of the internal illumination type illuminating device in embodiment is mounted | worn. 実施の形態における内照式照明装置の筺体の構造を示す正面図である。It is a front view which shows the structure of the housing of the internal illumination type illuminating device in embodiment. 実施の形態における内照式照明装置の筺体に面状発光ユニットが取り付けられた状態を示す正面図である。It is a front view which shows the state by which the planar light emission unit was attached to the housing of the internal illumination type illuminating device in embodiment. 図１１中のＸＩＩＩで囲まれた領域の部分拡大斜視図である。FIG. 13 is a partially enlarged perspective view of a region surrounded by XIII in FIG. 11. 実施の形態における内照式照明装置に装着される光学部材の構造を示す全体斜視図である。It is a whole perspective view which shows the structure of the optical member with which the internal illumination type illuminating device in embodiment is mounted | worn. 他の実施の形態における内照式照明装置の光学部材を除く面状発光モジュールの正面図である。It is a front view of the planar light emitting module except the optical member of the internal illumination type illuminating device in other embodiment. 図１５中ＸＶＩ－ＸＶＩ線矢視断面図である。FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG.
　本発明に基づいた各実施の形態における内照式照明装置について、以下、図を参照しながら説明する。以下に説明する実施の形態において、個数、量などに言及する場合、特に記載がある場合を除き、本発明の範囲は必ずしもその個数、量などに限定されない。同一の部品、相当部品に対しては、同一の参照番号を付し、重複する説明は繰り返さない場合がある。各実施の形態における構成を適宜組み合わせて用いることは当初から予定されていることである。 DETAILED DESCRIPTION Hereinafter, an internally illuminating illumination device in each embodiment based on the present invention will be described with reference to the drawings. In the embodiments described below, when referring to the number, amount, and the like, the scope of the present invention is not necessarily limited to the number, amount, and the like unless otherwise specified. The same parts and corresponding parts are denoted by the same reference numerals, and redundant description may not be repeated. It is planned from the beginning to use a combination of the configurations in each embodiment as appropriate.
　（内照式照明装置１）
　図１および図２を参照して、本実施の形態における内照式照明装置１について説明する。図１は、内照式照明装置１の内部を示す正面図、図２は、図１中ＩＩ－ＩＩ線矢視断面図である。 (Interior illumination device 1)
With reference to FIG. 1 and FIG. 2, the internal illumination type illuminating device 1 in this Embodiment is demonstrated. FIG. 1 is a front view showing the inside of the internally illuminating device 1, and FIG. 2 is a cross-sectional view taken along line II-II in FIG.
　本実施の形態における内照式照明装置１は、発光面側に照明パネル６０を有し、後述の面状発光ユニット１３０から照射される光が照明パネル６０の内面から外面に向けて照射される。図１では、内照式照明装置１の内部に収容される。４枚の面状発光ユニット１３０の正面図のみを図示している。 The internally illuminated lighting device 1 in the present embodiment has an illumination panel 60 on the light emitting surface side, and light emitted from a planar light emitting unit 130 described later is emitted from the inner surface of the illumination panel 60 toward the outer surface. . In FIG. 1, the interior illumination device 1 is housed. Only the front view of the four planar light emitting units 130 is shown.
　一つの面状発光ユニット１３０は、図１中のＡ－Ａで仕切られる領域からなり、本実施の形態では、４枚の面状発光ユニット１３０を、２行×２列の状態で組み合わせて内照式照明装置１を構成している。 One planar light emitting unit 130 is composed of an area partitioned by AA in FIG. 1, and in this embodiment, four planar light emitting units 130 are combined in a state of 2 rows × 2 columns. The illumination type illumination device 1 is configured.
　隣接する面状発光ユニット１３０の間（隙間領域）には、面状発光モジュール１００から照射された光を照明パネル６０側に反射する第３光学部材５００（合計４か所）が設けられている。面状発光ユニット１３０の構成、第３光学部材５００の構成の詳細については後述する。 Between the adjacent planar light emitting units 130 (gap region), there are provided third optical members 500 (a total of four locations) that reflect the light emitted from the planar light emitting module 100 toward the illumination panel 60 side. . Details of the configuration of the planar light emitting unit 130 and the configuration of the third optical member 500 will be described later.
　１つの面状発光ユニット１３０（例えば左上の面状発光ユニット）は、図１中のＢ－Ｂで仕切られる面状発光モジュール１００を２行×２列の状態で組み合わせて構成されており、各面状発光モジュール１００は、面状発光パネル１０を２行×２列の状態で組み合わせて構成されている。隣接する面状発光モジュール１００の間（隙間領域）には、面状発光モジュール１００から照射された光を照明パネル６０側に反射する第２光学部材３００（合計１６か所）が設けられており、隣接する面状発光パネル１０の間（隙間領域）には、面状発光パネル１０から照射された光を照明パネル６０側に反射する第１光学部材２００（合計６４か所）が設けられている。面状発光モジュール１００及び面状発光パネル１０の構成、第２光学部材５００及び第１光学部材３００の構成の詳細についても後述する。 One planar light emitting unit 130 (for example, the upper left planar light emitting unit) is configured by combining the planar light emitting modules 100 partitioned by BB in FIG. 1 in a state of 2 rows × 2 columns. The planar light emitting module 100 is configured by combining the planar light emitting panels 10 in a state of 2 rows × 2 columns. Between the adjacent planar light emitting modules 100 (gap region), there are provided second optical members 300 (16 places in total) that reflect the light emitted from the planar light emitting module 100 toward the illumination panel 60 side. Between the adjacent planar light emitting panels 10 (gap region), there are provided first optical members 200 (a total of 64 locations) that reflect the light emitted from the planar light emitting panel 10 to the illumination panel 60 side. Yes. Details of the configurations of the planar light emitting module 100 and the planar light emitting panel 10 and the configurations of the second optical member 500 and the first optical member 300 will also be described later.
　図２を参照して、内照式照明装置１の内部構造の概略について説明する。本実施の形態の内照式照明装置１は、上述したように、４枚の面状発光ユニット１３０を２行×２列の組み合わせて構成されている。さらに面状発光ユニット１３０は、４枚の面状発光モジュール１００を、２行×２列の状態で組み合わせている。さらに、面状発光モジュール１００は、４枚の面状発光パネル１０を、２行×２列の状態で組み合わせている。 Referring to FIG. 2, an outline of the internal structure of the internally illuminated lighting device 1 will be described. As described above, the internally illuminated lighting device 1 of the present embodiment is configured by combining four planar light emitting units 130 in 2 rows × 2 columns. Furthermore, the planar light emitting unit 130 combines four planar light emitting modules 100 in a state of 2 rows × 2 columns. Furthermore, the planar light emitting module 100 combines four planar light emitting panels 10 in a state of 2 rows × 2 columns.
　内照式照明装置１の最も表面側には、照明パネル６０が位置している。この照明パネル６０は、支持部材の一例としての筺体６００（図１１参照）に支持されている。筺体６００は図示しない壁面等に固定される。照明パネル６０は、光透過性を有する材料で構成され、一般的にはアクリル樹脂等が用いられる。照明パネル６０は、輝度ムラの発生を抑制するため、光散乱効果を有する部材を用いるとよい。 The illumination panel 60 is located on the most surface side of the internally illuminated illumination device 1. The illumination panel 60 is supported by a housing 600 (see FIG. 11) as an example of a support member. The housing 600 is fixed to a wall surface not shown. The lighting panel 60 is made of a light-transmitting material, and generally an acrylic resin or the like is used. For the lighting panel 60, a member having a light scattering effect may be used in order to suppress the occurrence of luminance unevenness.
　面状発光パネル１０は、面状発光モジュール１００を構成するモジュールパネル５４に対して、両面テープ１２０等を用いて固定されている（図５参照）。面状発光モジュール１００は、面状発光ユニット１３０を構成するユニットパネル７０に対して取り付けられている（図８参照）。この取付構造については後述する。 The planar light emitting panel 10 is fixed to the module panel 54 constituting the planar light emitting module 100 using a double-sided tape 120 or the like (see FIG. 5). The planar light emitting module 100 is attached to the unit panel 70 constituting the planar light emitting unit 130 (see FIG. 8). This mounting structure will be described later.
　面状発光パネル１０と隣接する面状発光パネル１０との間に生じる隙間領域５４ｓには、第１光学部材２００が、モジュールパネル５４に対して取り付けられている。発光モジュール１００と隣接する発光モジュール１００との間に生じるユニットパネル７０の隙間領域７０ｓには、第２光学部材３００が、ユニットパネル７０に対して取り付けられている。 The first optical member 200 is attached to the module panel 54 in a gap region 54 s formed between the planar light emitting panel 10 and the adjacent planar light emitting panel 10. The second optical member 300 is attached to the unit panel 70 in a gap area 70 s of the unit panel 70 generated between the light emitting module 100 and the adjacent light emitting module 100.
　第１光学部材２００および第２光学部材３００は、いずれも断面形状が照明パネル６０側に頂部が位置する略台形形状を有し、面状発光パネル１０から照射された光を照明パネル６０側に反射する。これにより、照明パネル６０を表面側から観察した場合の輝度ムラの発生を抑制する。 Each of the first optical member 200 and the second optical member 300 has a substantially trapezoidal shape in which the cross-sectional shape is located on the illumination panel 60 side, and the light emitted from the planar light emitting panel 10 is directed to the illumination panel 60 side. reflect. Thereby, generation | occurrence | production of the brightness nonuniformity at the time of observing the illumination panel 60 from the surface side is suppressed.
　（面状発光パネル１０）
　図３および図４を参照して、本実施の形態における面状発光パネル１０の構成について説明する。本実施の形態における面状発光パネル１０は、有機ＥＬから構成される。面状発光パネル１０は、複数の発光ダイオード（ＬＥＤ）と拡散板とから面状の面状発光パネルとして構成されていてもよいし、冷陰極管等を用いて面状の面状発光パネルとして構成されていてもよい。 (Surface emitting panel 10)
With reference to FIG. 3 and FIG. 4, the structure of the planar light emission panel 10 in this Embodiment is demonstrated. The planar light emitting panel 10 in the present embodiment is composed of an organic EL. The planar light emitting panel 10 may be configured as a planar planar light emitting panel from a plurality of light emitting diodes (LEDs) and a diffusion plate, or as a planar planar light emitting panel using a cold cathode tube or the like. It may be configured.
　図３は、面状発光パネル１０を示す平面図である。図３は、面状発光パネル１０の背面１９の側から面状発光パネル１０を見たときの様子を示している。図４は、図３中のＩＶ－ＩＶ線に沿った矢視断面図である。 FIG. 3 is a plan view showing the planar light-emitting panel 10. FIG. 3 shows a state when the planar light emitting panel 10 is viewed from the back surface 19 side of the planar light emitting panel 10. 4 is a cross-sectional view taken along line IV-IV in FIG.
　図３および図４を参照して、面状発光パネル１０は、透明基板１１（カバー層）、陽極１４、有機層１５、陰極１６、封止部材１７および絶縁層１８を含む。透明基板１１は、面状発光パネル１０の表面１２（発光面）を形成し、透明基板１１の外周端面は、面状発光パネル１０の外周１０Ｅを形成している。陽極１４、有機層１５および陰極１６は、透明基板１１の裏面１３上に順次積層される。封止部材１７は、面状発光パネル１０の背面１９を形成している。 3 and 4, the planar light emitting panel 10 includes a transparent substrate 11 (cover layer), an anode 14, an organic layer 15, a cathode 16, a sealing member 17, and an insulating layer 18. The transparent substrate 11 forms the surface 12 (light emitting surface) of the planar light emitting panel 10, and the outer peripheral end surface of the transparent substrate 11 forms the outer periphery 10E of the planar light emitting panel 10. The anode 14, the organic layer 15, and the cathode 16 are sequentially stacked on the back surface 13 of the transparent substrate 11. The sealing member 17 forms the back surface 19 of the planar light emitting panel 10.
　透明基板１１は、たとえば各種のガラス基板から構成される。透明基板１１を構成する部材としては、ＰＥＴ（Polyethylene　Terephthalate）またはポリカーボネイト等のフィルム基板が用いられてもよい。陽極１４は、透明性を有する導電膜である。陽極１４を形成するためには、スパッタリング法等によって、ＩＴＯ（Indium　Tin　Oxide：インジウム錫酸化物）等が透明基板１１上に成膜される。フォトリソグラフィ法等によりＩＴＯ膜が所定の形状にパターニングされることによって、陽極１４が形成される。陽極１４は、電極取出部２１（陽極用）および電極取出部２２（陰極用）を形成するために、パターニングによって２つの領域に分割されている。 The transparent substrate 11 is composed of various glass substrates, for example. As a member constituting the transparent substrate 11, a film substrate such as PET (Polyethylene Terephthalate) or polycarbonate may be used. The anode 14 is a conductive film having transparency. In order to form the anode 14, ITO (Indium Tin Oxide) or the like is formed on the transparent substrate 11 by sputtering or the like. The anode 14 is formed by patterning the ITO film into a predetermined shape by photolithography or the like. The anode 14 is divided into two regions by patterning to form an electrode extraction portion 21 (for anode) and an electrode extraction portion 22 (for cathode).
　有機層１５（発光部）は、電力を供給されることによって光（可視光）を生成することができる。有機層１５は、単層の発光層から構成されていてもよく、正孔輸送層、発光層、正孔阻止層、および電子輸送層などが順次積層されることによって構成されていてもよい。陰極１６は、たとえばアルミニウム（ＡＬ）である。陰極１６は、真空蒸着法等によって有機層１５を覆うように形成される。陰極１６を所定の形状にパターニングするために、真空蒸着の際にはマスクが用いられるとよい。 The organic layer 15 (light emitting unit) can generate light (visible light) by being supplied with electric power. The organic layer 15 may be composed of a single light emitting layer, or may be composed of a hole transport layer, a light emitting layer, a hole blocking layer, an electron transport layer, and the like that are sequentially laminated. The cathode 16 is, for example, aluminum (AL). The cathode 16 is formed so as to cover the organic layer 15 by a vacuum deposition method or the like. In order to pattern the cathode 16 into a predetermined shape, a mask may be used during vacuum deposition.
　陰極１６と陽極１４とが短絡しないように、陰極１６と電極取出部２１側の陽極１４との間に絶縁層１８が設けられる。陰極１６の絶縁層１８が設けられる側とは反対側の部分は、電極取出部２２側の陽極１４に接続される。絶縁層１８は、たとえばスパッタリング法を用いてＳｉＯ２などが成膜された後、フォトリソグラフィ法等を用いて陽極１４と陰極１６とを互いに絶縁する箇所を覆うように所望のパターンに形成される。 An insulating layer 18 is provided between the cathode 16 and the anode 14 on the electrode extraction part 21 side so that the cathode 16 and the anode 14 are not short-circuited. The part of the cathode 16 opposite to the side on which the insulating layer 18 is provided is connected to the anode 14 on the electrode extraction part 22 side. The insulating layer 18 is formed in a desired pattern so as to cover a portion that insulates the anode 14 and the cathode 16 from each other using a photolithography method or the like after, for example, a SiO 2 film is formed using a sputtering method. .
　封止部材１７は、絶縁性を有する樹脂またはガラス基板などから構成される。封止部材１７は、有機層１５を水分等から保護するために形成される。封止部材１７は、陽極１４、有機層１５、および陰極１６（すなわち、面状発光パネル１０の内部に設けられる部材）の略全体を透明基板１１上に封止する。陽極１４の一部は、電気的な接続のために、封止部材１７から露出している。 The sealing member 17 is made of an insulating resin or a glass substrate. The sealing member 17 is formed to protect the organic layer 15 from moisture and the like. The sealing member 17 seals substantially the whole of the anode 14, the organic layer 15, and the cathode 16 (that is, a member provided inside the planar light emitting panel 10) on the transparent substrate 11. A part of the anode 14 is exposed from the sealing member 17 for electrical connection.
　陽極１４の封止部材１７から露出している（図４左側の）部分は、電極取出部２１（陽極用）を構成する。電極取出部２１と陽極１４とは互いに同じ材料で構成される。電極取出部２１は、面状発光パネル１０の外周に位置する。陰極１６の封止部材１７から露出している（図４右側の）部分は、電極取出部２２（陰極用）を構成する。電極取出部２２と陽極１４とは互いに同じ材料で構成される。電極取出部２２も、面状発光パネル１０の外周に位置する。 The portion exposed from the sealing member 17 of the anode 14 (on the left side in FIG. 4) constitutes an electrode extraction portion 21 (for anode). The electrode extraction part 21 and the anode 14 are made of the same material. The electrode extraction portion 21 is located on the outer periphery of the planar light emitting panel 10. The portion of the cathode 16 exposed from the sealing member 17 (on the right side in FIG. 4) constitutes an electrode extraction portion 22 (for cathode). The electrode extraction part 22 and the anode 14 are made of the same material. The electrode extraction portion 22 is also located on the outer periphery of the planar light emitting panel 10.
　電極取出部２１および電極取出部２２は、有機層１５を挟んで相互に反対側に位置している。隣り合う電極取出部２１および電極取出部２２同士の間には、分割領域２０（図３参照）が形成されている。電極取出部２１および電極取出部２２には、はんだ付け（銀ペースト）等を用いて配線パターン（図示せず）が取り付けられる。 The electrode extraction part 21 and the electrode extraction part 22 are located on opposite sides of the organic layer 15. A divided region 20 (see FIG. 3) is formed between adjacent electrode extraction portions 21 and electrode extraction portions 22. A wiring pattern (not shown) is attached to the electrode extraction portion 21 and the electrode extraction portion 22 using soldering (silver paste) or the like.
　以上のように構成される面状発光パネル１０の表面１２が発光領域となる。面状発光パネル１０の有機層１５には、外部の電源装置から、図示しない配線パターン、電極取出部２１，２２、陽極１４および陰極１６を通して電力が供給される。有機層１５で生成された光は、陽極１４および透明基板１１を通して、表面１２（発光面）から外部に取り出される。 The surface 12 of the planar light emitting panel 10 configured as described above is a light emitting region. Electric power is supplied to the organic layer 15 of the planar light emitting panel 10 from an external power supply device through a wiring pattern (not shown), the electrode extraction parts 21 and 22, the anode 14 and the cathode 16. The light generated in the organic layer 15 is extracted from the surface 12 (light emitting surface) to the outside through the anode 14 and the transparent substrate 11.
　透明基板１１には透明なガラスのほか、光透過性のフィルム、たとえば、ポリイミド、ポリエチレンナフタレート（ＰＥＮ）、ポリエチレンテレフタレート（ＰＥＴ）、ポリスチレン（ＰＳ）、ポリエーテルサルフォン（ＰＥＳ）、ポリカーボネート（ＰＣ）、ポリプロピレン（ＰＰ）等が用いられる。 In addition to transparent glass, the transparent substrate 11 is a transparent film such as polyimide, polyethylene naphthalate (PEN), polyethylene terephthalate (PET), polystyrene (PS), polyethersulfone (PES), polycarbonate (PC ), Polypropylene (PP) or the like.
　陽極（アノード）１４には光透過性の材料、たとえば、インジウムチタンオキサイド（ＩＴＯ）またはポリエチレンジオキシチオフェン（ＰＥＤＯＴ）が用いられる。陰極（カソード）１６には、たとえば、アルミニウム（Ａｌ）、フッ化リチウム（ＬｉＦ）、ＡｌとＣａとの積層、ＡｌとＬｉＦとの積層、および、ＡｌとＢａとの積層等が用いられる。 The anode 14 is made of a light transmissive material such as indium titanium oxide (ITO) or polyethylenedioxythiophene (PEDOT). For the cathode 16, for example, aluminum (Al), lithium fluoride (LiF), a stack of Al and Ca, a stack of Al and LiF, a stack of Al and Ba, or the like is used.
　封止部材１７には、ＰＥＴ、ＰＥＮ、ＰＳ、ＰＥＳ、ポリイミド等のフィルムに、ＳｉＯ２、ＡＬ２Ｏ３、ＳｉＮｘ等の無機薄膜と柔軟性のあるアクリル樹脂薄膜などを層状に複数層重ね合わせることでガスバリア性を備えたものが用いられる。電極取出部２１および電極取出部２２には、さらに金、銀、銅などを積層してもよい。 The sealing member 17 is formed by laminating a plurality of layers of an inorganic thin film such as SiO 2 , AL 2 O 3 , SiNx, and a flexible acrylic resin thin film on a film such as PET, PEN, PS, PES, and polyimide. Thus, those having gas barrier properties are used. Gold, silver, copper, or the like may be further laminated on the electrode extraction portion 21 and the electrode extraction portion 22.
　（面状発光モジュール１００）
　図５から図７を参照して、面状発光モジュール１００について説明する。図５は、面状発光モジュール１００の全体斜視図、図６は、内照式照明装置１の第１光学部材２００を除く面状発光モジュール１００の正面図、図７は、第１光学部材２００の構造を示す全体斜視図である。 (Surface emitting module 100)
The planar light emitting module 100 will be described with reference to FIGS. FIG. 5 is an overall perspective view of the planar light emitting module 100, FIG. 6 is a front view of the planar light emitting module 100 excluding the first optical member 200 of the internal illumination device 1, and FIG. 7 is the first optical member 200. It is a whole perspective view which shows the structure.
　図５および図６を参照して、面状発光モジュール１００は、モジュールパネル５４の上に、２行×２列に合計４枚の面状発光パネル１０が両面テープ１２０を用いて固定されている。本実施の形態では、面状発光パネル１０は、１００ｍｍ×１００ｍｍの正方形の大きさを有している。 Referring to FIGS. 5 and 6, in planar light emitting module 100, a total of four planar light emitting panels 10 are fixed on module panel 54 in 2 rows × 2 columns using double-sided tape 120. . In the present embodiment, the planar light emitting panel 10 has a square size of 100 mm × 100 mm.
　上下左右に隣接する面状発光パネル１０と隙間領域５４ｓの間隔は、１６ｍｍである。面状発光モジュール１００の大きさ、隙間領域５４ｓの間隔は、内照式照明装置１の仕様に応じて任意の寸法が選択される。 The interval between the planar light emitting panel 10 adjacent to the top, bottom, left, and right and the gap region 54s is 16 mm. Arbitrary dimensions are selected for the size of the planar light emitting module 100 and the gap 54s according to the specifications of the internal illumination device 1.
　モジュールパネル５４の隙間領域５４ｓには、平面視において十字形状の第１光学部材２００が取り付けられている。 The cross-shaped first optical member 200 is attached to the gap region 54s of the module panel 54 in a plan view.
　図６を参照して、モジュールパネル５４の隙間領域５４Ｓには、面状発光モジュール１００を後述する面状発光ユニット１３０に固定する際に用いられる、位置決め用穴５４ａ，５４ｂ，５４ｃ，５４ｄ、および固定用穴５４ｅ，５４ｆ，５４ｇ，５４ｈが設けられている。位置決め用穴５４ａ，５４ｂについては、部品の製造誤差を吸収するのを容易にするために長孔が形成されている。 Referring to FIG. 6, in the gap region 54S of the module panel 54, positioning holes 54a, 54b, 54c, 54d used for fixing the planar light emitting module 100 to the planar light emitting unit 130 described later, and Fixing holes 54e, 54f, 54g, and 54h are provided. As for the positioning holes 54a and 54b, long holes are formed in order to make it easy to absorb manufacturing errors of components.
　さらに、モジュールパネル５４の隙間領域５４ｓには、第１光学部材２００を取り付ける際に用いられる、位置決め用ピン５４ｉ，５４ｋ，５４ｍ，５４ｐが立設され、固定用穴５４ｊ，５４ｌ，５４ｎ，５４ｑが設けられ、固定用穴５４ｊ，５４ｌ，５４ｎ，５４ｑには雌ねじが形成されている。これにより、第１光学部材２００を発光面側から面状発光モジュール１００に対して取付可能とする。 Furthermore, positioning pins 54i, 54k, 54m, 54p used for attaching the first optical member 200 are erected in the gap region 54s of the module panel 54, and fixing holes 54j, 54l, 54n, 54q are provided. An internal thread is formed in the fixing holes 54j, 54l, 54n, 54q. Thus, the first optical member 200 can be attached to the planar light emitting module 100 from the light emitting surface side.
　（第１光学部材２００）
　図７を参照して、第１光学部材２００について説明する。図７は、第１光学部材２００の構造を示す全体斜視図である。第１光学部材２００は、平面視において十字形状のベース部材２０１を有する。ベース部材２０１の４つの端部には、モジュールパネル５４に設けられた位置決め用ピン５４ｉ，５４ｋ，５４ｍ，５４ｐの夫々、および固定用穴５４ｊ，５４ｌ，５４ｎ，５４ｑの夫々、に対応する位置に、位置決め用穴２０１ａ、固定用穴２０１ｂが形成されている。位置決め用穴２０１ａには、モジュールパネル５４に設けられた位置決め用ピン５４ｉ，５４ｋ，５４ｍ，５４ｐが嵌合され、第１光学部材２００の位置決めを行なうことができる。位置決めをした後、固定用穴２０１ｂを用いて、発光面側からボルトを用いて、ベース部材２０１をモジュールパネル５４の隙間領域５４ｓに発光面側から固定することができる。 (First optical member 200)
The first optical member 200 will be described with reference to FIG. FIG. 7 is an overall perspective view showing the structure of the first optical member 200. The first optical member 200 has a cross-shaped base member 201 in plan view. At the four ends of the base member 201, there are positions corresponding to the positioning pins 54i, 54k, 54m, 54p provided on the module panel 54 and the fixing holes 54j, 54l, 54n, 54q, respectively. A positioning hole 201a and a fixing hole 201b are formed. Positioning pins 54i, 54k, 54m, 54p provided on the module panel 54 are fitted into the positioning holes 201a, so that the first optical member 200 can be positioned. After the positioning, the base member 201 can be fixed to the gap region 54s of the module panel 54 from the light emitting surface side by using bolts from the light emitting surface side using the fixing holes 201b.
　第１光学部材２００は、断面形状が照明パネル６０側に頂部が位置する略台形形状を有する反射部材２１０を有する。反射部材２１０には、ビス穴２１０ａが設けられている。ベース部材２０１には、反射部材２１０を支持する立壁部２０２が設けられ、この立壁部２０２には、反射部材２１０のビス穴２１０ａに対応する位置に固定用雌ねじ穴２０２ａが設けられている。ベース部材２０１をモジュールパネル５４に固定した後、ビス２３０を用いて、反射部材２１０をベース部材２０１に発光面側から固定することができる。 The first optical member 200 includes a reflecting member 210 having a substantially trapezoidal shape in which the top portion is located on the illumination panel 60 side. The reflection member 210 is provided with a screw hole 210a. The base member 201 is provided with a standing wall portion 202 that supports the reflecting member 210, and the standing wall portion 202 is provided with a fixing female screw hole 202 a at a position corresponding to the screw hole 210 a of the reflecting member 210. After fixing the base member 201 to the module panel 54, the reflection member 210 can be fixed to the base member 201 from the light emitting surface side using the screws 230.
　第１光学部材２００の斜面の傾斜角度（反射面同士の間に形成される内角）は、たとえば４５°である。この頂角の値は、３０°～９０°の間で適宜変更してもよい。 The inclination angle of the slope of the first optical member 200 (inner angle formed between the reflecting surfaces) is, for example, 45 °. The value of the apex angle may be appropriately changed between 30 ° and 90 °.
　第１光学部材２００を用いることで、非発光部（隙間領域５４Ｓ）の輝度低下を抑え均一な発光を実現する。さらに、第１光学部材２００を隙間領域５４Ｓに配置することで、面状発光パネル１０の隙間領域を広く配置しても均一な発光が可能となるので、照明装置に使用する面状発光パネル１０の枚数を抑制することができる。その結果、照明装置のコストを抑えることができる。また、第１光学部材２００のベース部材の固定用穴２０１ｂを用いて第１光学部材２００を隙間領域５４ｓに固定するため、固定箇所が反射部材２１０で覆われ、発光面側から見えることはない。また面状発光パネル１０から照射された光が第１光学部材２００を固定するための部材によって遮られることがないように配置することが望ましい。 By using the first optical member 200, the luminance reduction of the non-light emitting portion (gap region 54S) is suppressed and uniform light emission is realized. Furthermore, by disposing the first optical member 200 in the gap region 54S, even light emission can be performed even if the gap region of the planar light emitting panel 10 is widely arranged. Therefore, the planar light emitting panel 10 used in the lighting device. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed. In addition, since the first optical member 200 is fixed to the gap region 54s using the fixing hole 201b of the base member of the first optical member 200, the fixing portion is covered with the reflecting member 210 and is not visible from the light emitting surface side. . In addition, it is desirable that the light emitted from the planar light emitting panel 10 is arranged so as not to be blocked by a member for fixing the first optical member 200.
　（面状発光ユニット１３０）
　図８から図１０を参照して、面状発光ユニット１３０について説明する。図８は、面状発光ユニット１３０の斜視図、図９は、面状発光モジュール１００および第２光学部材３００を除く面状発光ユニット１３０の正面図、図１０は、第２光学部材３００の構造を示す全体斜視図である。 (Surface emitting unit 130)
The planar light emitting unit 130 will be described with reference to FIGS. 8 is a perspective view of the planar light emitting unit 130, FIG. 9 is a front view of the planar light emitting unit 130 excluding the planar light emitting module 100 and the second optical member 300, and FIG. 10 is the structure of the second optical member 300. FIG.
　図８および図９を参照して、面状発光ユニット１３０は、ユニットパネル７０の上に、２行×２列に合計４枚の面状発光モジュール１００が支持されている。図９において、４枚の面状発光モジュール１００が夫々取り付けられる領域には、４枚の面状発光パネルの夫々が配置される領域と、発光パネル間の隙間領域７０ｓが分かるように図示されている。ユニットパネル７０の４か所の隙間領域７０ｓには、４つの第２光学部材３００が取り付けられる。本実施の形態においては、７０ｓの間隔は、発光パネル１００同士の隙間領域５４ｓと同じ１６ｍｍに設定されている。 8 and 9, in the planar light emitting unit 130, a total of four planar light emitting modules 100 are supported on a unit panel 70 in 2 rows × 2 columns. In FIG. 9, the areas where the four planar light emitting modules 100 are attached are shown so that the areas where the four planar light emitting panels are arranged and the gap area 70 s between the light emitting panels can be seen. Yes. Four second optical members 300 are attached to the four gap regions 70 s of the unit panel 70. In the present embodiment, the interval of 70 s is set to 16 mm, which is the same as the gap region 54 s between the light emitting panels 100.
　図９を参照して、ユニットパネル７０に対して４枚の面状発光モジュール１００夫々が取り付けられる領域には、モジュールパネル５４の固定用穴５４ｅ，５４ｆ，５４ｇ，５４ｈ（図６参照）に対応する位置に、固定用雌ねじ穴（タップ穴）７１，７２，７３，７４が設けられている。モジュールパネル５４の位置決め用穴５４ａ，５４ｂ，５４ｃ，５４ｄ（図６参照）に対応する位置には、位置決め用ピン７１ｐ，７２ｐ，７３ｐ，７４ｐが立設されている。 Referring to FIG. 9, the area where each of the four planar light emitting modules 100 is attached to the unit panel 70 corresponds to the fixing holes 54e, 54f, 54g, 54h (see FIG. 6) of the module panel 54. Fixing female screw holes (tap holes) 71, 72, 73, 74 are provided at the positions where the fixing is performed. Positioning pins 71p, 72p, 73p, 74p are erected at positions corresponding to the positioning holes 54a, 54b, 54c, 54d (see FIG. 6) of the module panel 54.
　ユニットパネル７０の４か所の隙間領域７０ｓには、それぞれ第２光学部材３００を取り付けるための固定用雌ねじ穴（タップ穴）８１，８２が設けられている。さらに、隙間領域７０ｓには、第２光学部材３００を取り付ける際に位置決めを行なうための位置決め用ピン８３，８４が立設されている。 In the gap areas 70 s of the four positions of the unit panel 70, fixing female screw holes (tap holes) 81 and 82 for attaching the second optical member 300 are provided. Furthermore, positioning pins 83 and 84 are provided upright in the gap area 70s for positioning when the second optical member 300 is attached.
　ユニットパネル７０の外縁部の右側辺部および左側辺部にはそれぞれ、上側に係合軸７５が設けられ、各面状発光モジュール１００が設けられる領域の、各面状発光モジュール１００の中央領域に対応する２か所の位置（右側辺部に２か所、左側辺部に２か所）に、それぞれ第３光学部材５００を取り付けるための側部ブラケット７６が設けられている。側部ブラケット７６には、それぞれだるま穴７６ａおよび固定用穴７６ｂが形成されている。なお、右側辺部の側部ブラケット７６と左側辺部の側部ブラケット７６とでは、だるま穴７６ａのある部分の位置が固定用穴７６ｂに対して上下反対になっており、２枚の面状発光ユニット１３０を横に並べた場合に、右側辺部の側部ブラケット７６と左側辺部の側部ブラケット７６のだるま穴７６ａのある位置がずれるようになっている。 Engagement shafts 75 are respectively provided on the right side and left side of the outer edge of the unit panel 70, and in the central area of each planar light emitting module 100 in the area where each planar light emitting module 100 is provided. Side brackets 76 for attaching the third optical member 500 are provided at two corresponding positions (two on the right side and two on the left side). The side bracket 76 is formed with a daruma hole 76a and a fixing hole 76b, respectively. It should be noted that in the side bracket 76 on the right side and the side bracket 76 on the left side, the position of the portion with the darling hole 76a is upside down with respect to the fixing hole 76b, and two planar shapes are provided. When the light emitting units 130 are arranged side by side, the positions of the side holes 76 on the right side and the side brackets 76 a on the left side are shifted.
　ユニットパネル７０の外縁部の下側辺部には、面状発光モジュール１００が設けられる領域の、各面状発光モジュール１００の中央領域に対応する２か所の位置に、それぞれ第３光学部材５００を取り付けるための下部ブラケット７７が設けられている。下部ブラケット７７には、それぞれだるま穴７７ａが形成されている。 On the lower side portion of the outer edge portion of the unit panel 70, the third optical member 500 is provided at two positions corresponding to the central region of each planar light emitting module 100 in the region where the planar light emitting module 100 is provided. A lower bracket 77 is provided for attaching the. The lower bracket 77 is formed with a daruma hole 77a.
　（第２光学部材３００）
　図１０を参照して、第２光学部材３００について説明する。図１０は、第２光学部材３００の構造を示す全体斜視図である。第２光学部材３００は、平面視において略一文字形状の反射面３０１を有する。 (Second optical member 300)
The second optical member 300 will be described with reference to FIG. FIG. 10 is an overall perspective view showing the structure of the second optical member 300. The second optical member 300 has a substantially single-character reflecting surface 301 in plan view.
　第２光学部材３００には、ユニットパネル７０に設けられた固定用雌ねじ穴（タップ穴）８１，８２および位置決め用ピン８３，８４に対応する位置に、夫々、固定用穴３０５ａ，３０５ｂが形成されてたブラケット３０５が設けられている。この固定用穴３０５ａを用いて、発光面側からボルトを用いて、第２光学部材３００をユニットパネル７０の隙間領域７０ｓに固定することができる。位置決め用穴３０５ｂにはユニットパネル７０に設けられた位置決め用ピン８３，８４が篏合され、第２光学部材３００の位置決めを行なうことができる。なお、ブラケット３０５は、第２光学部材３００のベース部材（図示せず）の板の一部分を切り出して曲げることで形成すればよい。 In the second optical member 300, fixing holes 305a and 305b are formed at positions corresponding to fixing female screw holes (tap holes) 81 and 82 and positioning pins 83 and 84 provided in the unit panel 70, respectively. Bracket 305 is provided. Using the fixing hole 305a, the second optical member 300 can be fixed to the gap region 70s of the unit panel 70 using a bolt from the light emitting surface side. Positioning pins 83 and 84 provided in the unit panel 70 are engaged with the positioning hole 305b, and the second optical member 300 can be positioned. The bracket 305 may be formed by cutting and bending a part of a base member (not shown) plate of the second optical member 300.
　第２光学部材３００は、断面形状が照明パネル６０側に頂部が位置する略台形形状を有する反射面３０１を有する。反射面３０１の斜面の傾斜角度（反射面同士の間に形成される内角）は、たとえば４５°である。この頂角の値は、３０°～９０°の間で適宜変更してもよい。本実施の形態においては、第１光学部材２００と第２光学部材３００との反射面の傾斜角度は同じに設けられる。 The second optical member 300 has a reflective surface 301 having a substantially trapezoidal shape with a top portion located on the illumination panel 60 side in cross section. The inclination angle of the inclined surface of the reflection surface 301 (inner angle formed between the reflection surfaces) is, for example, 45 °. The value of the apex angle may be appropriately changed between 30 ° and 90 °. In the present embodiment, the inclination angles of the reflecting surfaces of the first optical member 200 and the second optical member 300 are provided to be the same.
　第２光学部材３００の一方端部には、ユニットパネル７０の中央部で他の第２光学部材３００と当接する傾斜辺３０２が設けられている。第２光学部材３００の中央部には、第１光学部材２００の端部と当接する連結部３０４が設けられている。第２光学部材３００の他方端部は、ユニットパネル７０の外縁側に位置する垂直辺３０３が設けられている。 At one end portion of the second optical member 300, an inclined side 302 that comes into contact with the other second optical member 300 at the center portion of the unit panel 70 is provided. In the central portion of the second optical member 300, a connecting portion 304 that contacts the end portion of the first optical member 200 is provided. The other end portion of the second optical member 300 is provided with a vertical side 303 located on the outer edge side of the unit panel 70.
　第２光学部材３００を用いることで、第１光学部材と同様に、非発光部（隙間領域７０Ｓ）の輝度低下を抑え均一な発光を実現する。さらに、第２光学部材３００を隙間領域７０ｓに配置することで、面状発光モジュール１００の隙間領域を広く配置しても均一な発光が可能となるので、照明装置に使用する面状発光モジュール１００の枚数を抑制することができる。その結果、照明装置のコストを抑えることができる。また、第２光学部材３００を固定するためのブラケット３０５及びユニットパネル７０の隙間領域の位置決め用ピン８３，８３や固定用雌ねじ穴８１，８２が第２光学部材の反射面３０１によって覆われるため、固定箇所が発光面側から見えることはない。また面状発光モジュール１００から照射された光が第２光学部材３００を固定するための部材によって遮られることがない。 By using the second optical member 300, similarly to the first optical member, the luminance reduction of the non-light emitting portion (gap region 70 </ b> S) is suppressed and uniform light emission is realized. Further, by arranging the second optical member 300 in the gap area 70s, even light emission can be performed even if the gap area of the planar light emitting module 100 is widely arranged. Therefore, the planar light emitting module 100 used in the lighting device. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed. Further, since the positioning pins 83 and 83 and the fixing female screw holes 81 and 82 in the gap region between the bracket 305 and the unit panel 70 for fixing the second optical member 300 are covered with the reflection surface 301 of the second optical member, The fixed part is not visible from the light emitting surface side. Further, the light emitted from the planar light emitting module 100 is not blocked by the member for fixing the second optical member 300.
　（面状発光ユニット１３０の組み立て）
　最初に、面状発光パネル１０が取り付けられたモジュールパネル５４をユニットパネル７０に取り付ける。モジュールパネル５４のユニットパネル７０への取り付けにおいては、ユニットパネル７０に設けられた位置決め用ピン７１ｐ，７２ｐ，７３ｐ，７４ｐにモジュールパネル５４の位置決め用穴５４ａ，５４ｂ，５４ｃ，５４ｄを挿通させてモジュールパネル５４の位置決めを行なう。 (Assembly of the planar light emitting unit 130)
First, the module panel 54 to which the planar light emitting panel 10 is attached is attached to the unit panel 70. When the module panel 54 is attached to the unit panel 70, the positioning pins 71p, 72p, 73p, and 74p provided on the unit panel 70 are inserted into the positioning holes 54a, 54b, 54c, and 54d of the module panel 54, and the module panel 54 is attached. The panel 54 is positioned.
　次に、発光面側からモジュールパネル５４の固定用穴５４ｅ，５４ｆ，５４ｇ，５４ｈにボルトを挿通して、ユニットパネル７０の固定用雌ねじ穴（タップ穴）７１，７２，７３，７４を用いてボルトを螺合させる。これにより、モジュールパネル５４のユニットパネル７０への固定が完了する。 Next, bolts are inserted into the fixing holes 54e, 54f, 54g, 54h of the module panel 54 from the light emitting surface side, and the fixing female screw holes (tap holes) 71, 72, 73, 74 of the unit panel 70 are used. Screw the bolts together. Thereby, the fixing of the module panel 54 to the unit panel 70 is completed.
　次に、モジュールパネル５４に対して、発光面側から第１光学部材２００の取付を行なう。モジュールパネル５４に対する第１光学部材２００の取付において、モジュールパネル５４に設けられた位置決め用ピン５４ｉ，５４ｋ，５４ｍ，５４ｐに第１光学部材のベース部材２０１の位置決め用穴２０１ａを挿通させて第１光学部材２００の位置決めを行う。次に、第１光学部材２００のベース部材２０１に設けられた固定用穴２０１ａにボルトを挿通して、モジュールパネル５４の固定用穴５４ｉ，５４ｌ，５４ｎ，５４ｐを用いてボルトを螺合させる。これにより、第１光学部材２００がモジュールパネル５４の隙間領域５４ｓに取り付られ、面状発光モジュール１００が完成する。 Next, the first optical member 200 is attached to the module panel 54 from the light emitting surface side. When the first optical member 200 is attached to the module panel 54, the positioning holes 201a of the base member 201 of the first optical member are inserted into the positioning pins 54i, 54k, 54m, 54p provided on the module panel 54, so that the first optical member 200 is attached. The optical member 200 is positioned. Next, a bolt is inserted into the fixing hole 201a provided in the base member 201 of the first optical member 200, and the bolt is screwed using the fixing holes 54i, 54l, 54n, 54p of the module panel 54. Thereby, the 1st optical member 200 is attached to the clearance gap area | region 54s of the module panel 54, and the planar light emitting module 100 is completed.
　面状発光モジュール１００が完成した後、ユニットパネル７０に対して、発光面側から第２光学部材３００の取付を行なう。ユニットパネル７０に対する第２光学部材３００の取付において、第２光学部材を、傾斜辺３０２が他の第２光学部材３００と当接し、垂直辺３０３がユニットパネル７０の外縁側に来るように配置を決める。次に、第２光学部材３００のブラケット３０５の位置決め用穴３０５ｂにユニットパネル７０に設けられた位置決め用ピン８３，８４を篏合して第２光学部材３００の位置決めを行ない、ブラケット３０５の固定用穴３０５ａに発光面側からボルトを挿通させて、第２光学部材３００をユニットパネル７０の隙間領域７０ｓに固定する。これにより、第２光学部材３００がユニットパネル７０の隙間領域７０ｓに取り付けられ、面状発光ユニット１３０が完成する。 After the planar light emitting module 100 is completed, the second optical member 300 is attached to the unit panel 70 from the light emitting surface side. In attaching the second optical member 300 to the unit panel 70, the second optical member is arranged such that the inclined side 302 is in contact with the other second optical member 300 and the vertical side 303 is on the outer edge side of the unit panel 70. Decide. Next, the positioning pins 83 and 84 provided on the unit panel 70 are engaged with the positioning holes 305b of the bracket 305 of the second optical member 300 to position the second optical member 300, and the bracket 305 is fixed. Bolts are inserted into the holes 305 a from the light emitting surface side, and the second optical member 300 is fixed to the gap region 70 s of the unit panel 70. As a result, the second optical member 300 is attached to the gap region 70s of the unit panel 70, and the planar light emitting unit 130 is completed.
　（筺体６００）
　次に、図１１から図１３を参照して、上記により完成した面状発光ユニット１３０を２行２列の状態で保持する筺体６００について説明する。図１１は、筺体６００の構造を示す正面図、図１２は、筺体６００に面状発光ユニット１３０が取り付けられた状態を示す正面図、図１３は、図１１中のＸＩＩＩで囲まれた領域の部分拡大斜視図である。 (Housing 600)
Next, a housing 600 that holds the planar light emitting unit 130 completed as described above in a state of 2 rows and 2 columns will be described with reference to FIGS. 11 to 13. 11 is a front view showing the structure of the housing 600, FIG. 12 is a front view showing a state in which the planar light emitting unit 130 is attached to the housing 600, and FIG. 13 is an area surrounded by XIII in FIG. It is a partial expansion perspective view.
　筺体６００はフレーム枠６０１を有し、このフレーム枠６０１には上下方向に延びる桟６０２が３ヶ所設けられている。本実施の形態では、フレーム枠６０１および桟６０２には、強度および全体質量の観点からアルミ材が用いられるが、他の材料を用いてもよい。 The housing 600 has a frame frame 601, and the frame frame 601 is provided with three bars 602 extending in the vertical direction. In the present embodiment, aluminum material is used for the frame frame 601 and the crosspiece 602 from the viewpoint of strength and overall mass, but other materials may be used.
　桟６０２の夫々には、上端部および中段部に、ぞれぞれ係合フック６０３が設けられている。係合フック６０３の下方にはそれぞれ、固定用ベース６０４が設けられている。この固定用ベース６０４には、固定用雌ねじ穴６０４ａが設けられている。 Each of the crosspieces 602 is provided with engagement hooks 603 at the upper end portion and the middle step portion, respectively. A fixing base 604 is provided below the engagement hook 603. The fixing base 604 is provided with a fixing female screw hole 604a.
　図１３の拡大図からわかるように、桟６０２に係合フック６０３が設けられており、係合フックの突出部に面状発光ユニット１３０の係合軸７５が引っ掛けられることにより、面状発光ユニット１３０が吊り下げられる。ここでは、係合フック６０３の突出部の片側半分に面状発光ユニット１３０が吊り下げられた状態を示しているが、突出部のもう片側半分にも同様に、面状発光ユニット１３９を吊り下げることができる。 As can be seen from the enlarged view of FIG. 13, the hook 603 is provided on the crosspiece 602, and the engaging shaft 75 of the planar light emitting unit 130 is hooked on the protruding portion of the engaging hook, whereby the planar light emitting unit. 130 is suspended. Here, a state in which the planar light emitting unit 130 is suspended from one half of the protruding portion of the engagement hook 603 is shown, but the planar light emitting unit 139 is similarly suspended from the other half of the protruding portion. be able to.
　このとき、図１２に示すように、隣接する面状発光ユニット１３０の間に隙間領域６１０ｓが設けられるように係合フック６０３及び係合軸７５は係合し、隙間領域６１０ｓに第３光学部材５００（合計４か所）が配置される。本実施の形態において、この隙間領域６１０ｓの幅は、面発光モジュールにおける隙間領域５４ｓ、面状発光ユニット１３０における隙間領域７０ｓと同じ幅となるよう、設定されている。図１２は面状発光ユニット１３０が２行×２列で筐体６００に取り付けられた状態を示している。 At this time, as shown in FIG. 12, the engagement hook 603 and the engagement shaft 75 are engaged so that a gap region 610s is provided between adjacent planar light emitting units 130, and the third optical member is engaged with the gap region 610s. 500 (4 places in total) are arranged. In the present embodiment, the width of the gap region 610s is set to be the same width as the gap region 54s in the surface light emitting module and the gap region 70s in the planar light emitting unit 130. FIG. 12 shows a state in which the planar light emitting units 130 are attached to the housing 600 in 2 rows × 2 columns.
　（第３光学部材５００）
　図１４を参照して、第３光学部材５００について説明する。図１４は、第３光学部材５００の構造を示す全体斜視図である。第３光学部材５００は、平面視において略一文字形状の反射面５０１を有する。 (Third optical member 500)
The third optical member 500 will be described with reference to FIG. FIG. 14 is an overall perspective view showing the structure of the third optical member 500. The third optical member 500 has a reflective surface 501 having a substantially single character shape in plan view.
　反射面５０１には、ユニットパネル７０の側部ブラケット７６に設けられただるま穴７６ａ、または、下部ブラケット７７に設けられただるま穴７７ａに対応する位置に、溝付きピン５１０が設けられている。発光面側から溝付きピン５１０をだるま穴７６ａ，７７ａに挿通し、だるま穴７６ａ，７７ａの小径部分を溝付きピン５１０の溝部にスライドさせることで、第３光学部材５００を容易に側部ブラケット７６および下部ブラケット７７に固定することができる。このようにして、隣接する面状発光ユニットの隙間領域６１０ｓに第３光学部材（面状発光ユニット１３０が２行×２列の４枚の場合、合計４か所）が配置される。 The reflective surface 501 is provided with a grooved pin 510 at a position corresponding to a saddle hole 76 a provided in the side bracket 76 of the unit panel 70 or a saddle hole 77 a provided in the lower bracket 77. The third optical member 500 can be easily attached to the side bracket by inserting the grooved pin 510 from the light emitting surface side into the groove holes 76a and 77a and sliding the small diameter portions of the hole holes 76a and 77a into the groove portion of the grooved pin 510. 76 and the lower bracket 77. In this manner, the third optical member (a total of four places in the case where the number of the planar light emitting units 130 is 2 rows × 2 columns is 4) is arranged in the gap area 610s between the adjacent planar light emitting units.
　第３光学部材５００は、断面形状が照明パネル６０側に頂部が位置する略台形形状をする反射面５０１を有する。反射面５０１の斜面の傾斜角度（反射面同士の間に形成される内角）は、たとえば４５°である。この頂角の値は、３０°～９０°の間で適宜変更してもよい。本実施の形態においては、第１光学部材２００、第２光学部材３００および第３光学部材５００の反射面の傾斜角度は同じに設けられる。 The third optical member 500 has a reflecting surface 501 having a substantially trapezoidal shape in which the top portion is positioned on the illumination panel 60 side. The inclination angle of the inclined surface of the reflection surface 501 (inner angle formed between the reflection surfaces) is, for example, 45 °. The value of the apex angle may be appropriately changed between 30 ° and 90 °. In the present embodiment, the inclination angles of the reflecting surfaces of the first optical member 200, the second optical member 300, and the third optical member 500 are provided to be the same.
　第３光学部材５００には、３ヶ所に面状発光ユニット１３０の他の光学部材（第１光学部材２００または第２光学部材３００）の端部と当接する連結部５０２が設けられている。 The third optical member 500 is provided with connecting portions 502 that come into contact with the ends of the other optical members (the first optical member 200 or the second optical member 300) of the planar light emitting unit 130 at three locations.
　第３光学部材５００を用いることで、第１、２光学部材と同様に、非発光部（面状発光ユニット１３０間の隙間領域）の輝度低下を抑え均一な発光を実現する。さらに、第３光学部材５００を隙間領域に配置することで、面状発光ユニット１３０の隙間領域を広く配置しても均一な発光が可能となるので、照明装置に使用する面状発光ユニット１３０の枚数を抑制することができる。その結果、照明装置のコストを抑えることができる。また、第３光学部材５００を固定するための溝付きピン５１０とユニットパネル７０の側部ブラケット７６が第３光学部材５００の反射面３０１によって覆われるため、固定箇所が発光面側から見えることはない。また面状発光モジュール１００から照射された光がこれらの固定部材によって遮られることがない。 By using the third optical member 500, as in the first and second optical members, the luminance reduction of the non-light emitting portion (gap region between the planar light emitting units 130) is suppressed and uniform light emission is realized. Furthermore, by arranging the third optical member 500 in the gap area, even light emission is possible even if the gap area of the planar light emitting unit 130 is wide, so that the planar light emitting unit 130 used in the illumination device can be illuminated. The number of sheets can be suppressed. As a result, the cost of the lighting device can be suppressed. In addition, since the grooved pin 510 for fixing the third optical member 500 and the side bracket 76 of the unit panel 70 are covered by the reflecting surface 301 of the third optical member 500, the fixing portion can be seen from the light emitting surface side. Absent. Further, the light emitted from the planar light emitting module 100 is not blocked by these fixing members.
　（内照式照明装置１の組み立て）
　内照式照明装置１の組み立てにおいては、完成した面状発光ユニット１３０を４枚準備し、面状発光ユニット１３０の係合軸７５を、筺体６００の桟６０２の係合フック６０３に係合させる。これにより、面状発光ユニット１３０は、係合軸７５を回転軸として、係合フック６０３に吊り下げられた状態となる。 (Assembly of internally illuminated lighting device 1)
In assembling the internally illuminated lighting device 1, four completed planar light emitting units 130 are prepared, and the engaging shaft 75 of the planar light emitting unit 130 is engaged with the engaging hook 603 of the beam 602 of the housing 600. . Thereby, the planar light emitting unit 130 is suspended from the engagement hook 603 with the engagement shaft 75 as a rotation axis.
　次に、面状発光ユニット１３０に設けられた側部ブラケット７６の固定用穴７６ｂにボルトを発光面側から挿通し、桟６０２の固定用ベース６０４に設けられた固定用雌ねじ穴６０４ａにボルトを螺合させる。これにより、面状発光ユニット１３０の筺体６００への固定が完了する。 Next, a bolt is inserted into the fixing hole 76 b of the side bracket 76 provided in the planar light emitting unit 130 from the light emitting surface side, and the bolt is inserted into the fixing female screw hole 604 a provided in the fixing base 604 of the crosspiece 602. Screw together. Thereby, fixation to the housing 600 of the planar light emitting unit 130 is completed.
　次に、発光面側から、第３光学部材５００の溝付きピン５１０を、ユニットパネル７０の側部ブラケット７６に設けられただるま穴７６ａ、または、下部ブラケット７７に設けられただるま穴７７ａに挿通し、第３光学部材５００をだるま穴７６ａの小径方向にスライドさせる。これにより、溝付きピン５１０の溝部にだるま穴７６ａ，７７ａの小径部分が係合する。これにより、第３光学部材５００が、面状発光ユニット１３０の側部ブラケット７６および下部ブラケット７７に固定される。その後、筺体６００の発光面側に、照明パネル６０を固定する。 Next, from the light emitting surface side, the grooved pin 510 of the third optical member 500 is inserted into the saddle hole 76 a provided in the side bracket 76 of the unit panel 70 or the saddle hole 77 a provided in the lower bracket 77. Then, the third optical member 500 is slid in the small diameter direction of the saddle hole 76a. As a result, the small diameter portions of the saddle holes 76a and 77a engage with the groove portion of the grooved pin 510. Thereby, the third optical member 500 is fixed to the side bracket 76 and the lower bracket 77 of the planar light emitting unit 130. Thereafter, the lighting panel 60 is fixed to the light emitting surface side of the housing 600.
　このように本実施の形態における内照式照明装置１においては、複数の面状発光パネル１０、および複数の面状発光パネル１０の相互の間に隙間領域５４ｓを有するように面状発光パネル１０を支持するモジュールパネル５４を有する面状発光モジュール１００と、複数の面状発光モジュール１００の相互の間に隙間領域７０ｓを有するように面状発光モジュール１００を支持するユニットパネル７０を有する面状発光ユニット１３０と、複数の面状発光ユニット１３０の相互の間に隙間領域６１０ｓを有するように面状発光ユニット１３０を支持する筺体６００と、この筺体６００に支持され、面状発光モジュール１００から照射される光が内面から外面に向けて照射される照明パネル６０と、隙間領域５４ｓに配置され、面状発光パネル１０から照射された光を照明パネル６０側に反射する第１光学部材１００と、隙間領域７０ｓに配置され、面状発光モジュール１００から照射された光を照明パネル６０側に反射する第２光学部材３００と、隙間領域６１０ｓに配置され、面状発光ユニット５００から照射された光を照明パネル６０側に反射する第３光学部材５００とを備えている。 Thus, in the internally illuminating device 1 according to the present embodiment, the planar light emitting panel 10 has the plurality of planar light emitting panels 10 and the gap regions 54s between the plurality of planar light emitting panels 10. The planar light emitting module 100 having the module panel 54 that supports the planar light emitting module and the planar light emitting module having the unit panel 70 that supports the planar light emitting module 100 so as to have a gap region 70s between the plurality of planar light emitting modules 100. The housing 130 that supports the planar light emitting unit 130 so as to have a gap region 610 s between the unit 130 and the plurality of planar light emitting units 130, and is supported by the housing 600 and irradiated from the planar light emitting module 100. Are disposed in the gap region 54s and the planar light-emitting panel is irradiated with light from the inner surface toward the outer surface. The first optical member 100 that reflects the light emitted from the illumination panel 60 toward the illumination panel 60 side, and the second optical member that is disposed in the gap area 70s and reflects the light emitted from the planar light emitting module 100 toward the illumination panel 60 side. 300 and a third optical member 500 that is disposed in the gap region 610s and reflects the light emitted from the planar light emitting unit 500 to the illumination panel 60 side.
　面状発光ユニット１３０の筐体６００への支持箇所（図９の係合軸７５、固定用穴７６ｂ）は、隙間領域６１０ｓに設けられている。また、第３光学部材５００の面状発光ユニット１３０の側部ブラケット７６または下部ブラケット７７への支持箇所（だるま穴７６ａ，７７ａ）も隙間領域６１０ｓに設けられている。したがって、第３光学部材５００を取り付けることにより、隙間領域６１ｓにある、面発光ユニット１３０の筐体への支持箇所及び第３光学部材の側部ブラケット７６または下部ブラケット７７への支持箇所が覆われる。その結果、面状発光モジュールから照射された光は、以上の支持箇所によって遮られることなく、第３光学ユニットの反射面によって反射され、輝度ムラの発生を抑制することができる。また、面状発光ユニット１３０を筐体へ取り付けるための部材が面状発光ユニット１３０の背面側に位置していないため、照明装置の薄型化を図ることができる。　 The place where the planar light emitting unit 130 is supported by the housing 600 (the engaging shaft 75 and the fixing hole 76b in FIG. 9) is provided in the gap region 610s. In addition, support portions (dar holes 76a and 77a) for the side bracket 76 or the lower bracket 77 of the planar light emitting unit 130 of the third optical member 500 are also provided in the gap region 610s. Therefore, by attaching the third optical member 500, the support location to the housing of the surface emitting unit 130 and the support location to the side bracket 76 or the lower bracket 77 of the third optical member in the gap region 61s are covered. . As a result, the light emitted from the planar light emitting module is reflected by the reflecting surface of the third optical unit without being blocked by the above support locations, and the occurrence of uneven brightness can be suppressed. In addition, since the member for attaching the planar light emitting unit 130 to the housing is not located on the back side of the planar light emitting unit 130, the lighting device can be thinned. *
　さらに、第３光学部材５００を、面状発光ユニット１３０の溝付きピン５１０を側部ブラケット７６または下部ブラケット７７のだるま穴７６ａ，７７ａへ差し込みスライドするだけで固定できる。また、面状発光ユニット１３０の筐体６００への取付も、発光面側から係合軸７５を係合フック６０３へ係合させ、また側部ブラケット７６の固定用穴７６ｂを用いて固定することにより、行なわれる。このように、照明パネル側から第３光学部材５００及び面状発光ユニットの着脱が容易であり、第３光学部材５００又は面状発光ユニット１３０のいずれかが故障または消耗した場合、照明パネル側から容易に交換することが可能である。 Further, the third optical member 500 can be fixed simply by inserting and sliding the grooved pin 510 of the planar light emitting unit 130 into the side holes 76 or the round holes 76 a and 77 a of the lower bracket 77. Also, the planar light emitting unit 130 is attached to the housing 600 by engaging the engaging shaft 75 with the engaging hook 603 from the light emitting surface side and fixing it using the fixing hole 76b of the side bracket 76. It is done by. As described above, the third optical member 500 and the planar light emitting unit can be easily attached and detached from the lighting panel side. When either the third optical member 500 or the planar light emitting unit 130 breaks down or wears out, the lighting panel side It can be easily replaced.
　以上のように、本実施の形態による複数の面状発光ユニット１３０を用いた内照式照明装置１において、輝度ムラの発生を抑制しながら装置の薄型化を図ることを可能とする内照式照明装置１を提供することを可能としている。これにより、内照式照明装置１のデザイン性、機能性を向上させることも可能になる。 As described above, in the internally illuminating device 1 using the plurality of planar light emitting units 130 according to the present embodiment, it is possible to reduce the thickness of the device while suppressing the occurrence of uneven brightness. The lighting device 1 can be provided. Thereby, it becomes possible to improve the designability and functionality of the internal illumination device 1.
　さらに、第３光学部材５００は、面状発光ユニット１３０に対して照明パネル６０側から着脱可能に支持されている。面状発光ユニット１３０も、筐体６００に対して照明パネル６０側から着脱可能に支持されている。また、第２光学部材３００、第１光学部材２００も、照明パネル６０側から着脱が可能である。これにより、面状発光ユニット１３０及び光学部材５００、３００、２００の交換作業、および、メンテナンス作業を容易（工数の低減）とする内照式照明装置１を提供することを可能としている。 Furthermore, the third optical member 500 is detachably supported from the illumination panel 60 side with respect to the planar light emitting unit 130. The planar light emitting unit 130 is also detachably supported from the lighting panel 60 side with respect to the housing 600. Moreover, the 2nd optical member 300 and the 1st optical member 200 can also be attached or detached from the illumination panel 60 side. Thereby, it is possible to provide the internally illuminated lighting device 1 that facilitates the replacement work and maintenance work of the planar light emitting unit 130 and the optical members 500, 300, and 200 (reduction of man-hours).
　たとえば、トンネル内の誘導灯、ビルの壁面に用いる内照式照明装置、広告用表示装置の場合、後方からの取り付けが難しいため、前面から着脱できる構造が重要になる。 For example, in the case of guide lights in tunnels, internally-illuminated lighting devices used for building walls, and advertising display devices, it is difficult to attach from the rear, so a structure that can be detached from the front is important.
　（他の実施の形態）
　図１５および図１６を参照して、他の実施の形態における面状発光モジュール１００Ａについて説明する。図１５は、他の実施の形態における第１光学部材を除く面状発光モジュール１００Ａの正面図、図１６は、図１５中ＸＶＩ－ＸＶＩ線矢視断面図である。 (Other embodiments)
With reference to FIGS. 15 and 16, a planar light emitting module 100A according to another embodiment will be described. FIG. 15 is a front view of a planar light emitting module 100A excluding the first optical member in another embodiment, and FIG. 16 is a cross-sectional view taken along line XVI-XVI in FIG.
　この面状発光モジュール１００Ａにおいては、実施の形態１におけるモジュールパネル５４に設けられた固定用穴５４ｅ，５４ｆ，５４ｇ，５４ｈに代わり、磁石５４１ｅ，５４１ｆ，５４１ｇ，５４１ｈが、モジュールパネル５４にあらかじめ埋め込まれている。磁石５４１ｅ，５４１ｆ，５４１ｇ，５４１ｈの埋め込み位置は、面状発光パネル１０の間の隙間領域５４Ｓに埋め込むことで、面状発光モジュール１００の厚さが大きくなることはない。 In this planar light emitting module 100A, magnets 541e, 541f, 541g, 541h are embedded in the module panel 54 in advance instead of the fixing holes 54e, 54f, 54g, 54h provided in the module panel 54 in the first embodiment. It is. By embedding the magnets 541e, 541f, 541g, and 541h in the gap region 54S between the planar light emitting panels 10, the thickness of the planar light emitting module 100 does not increase.
　このように、モジュールパネル５４のユニットパネル７０への固定位置にあらかじめ磁石を配置しておくことで、発光面側から容易にモジュールパネル５４をユニットパネル７０に固定することができる。 As described above, the module panel 54 can be easily fixed to the unit panel 70 from the light emitting surface side by arranging the magnet in advance at the position where the module panel 54 is fixed to the unit panel 70.
　上記各実施の形態において、固定用雌ねじ穴を用いた箇所については、固定用雌ねじ穴に代わりボルトを立設し、ナットで固定するようにしてもよい。図１５および図１６に示したように、ねじを用いて固定する箇所に磁石を配置して磁力に基いて固定する構造を採用することによっても、発光面側から各部品の取り付け、および、交換作業を行なうことができる。 In each of the above embodiments, a bolt may be erected in place of the fixing female screw hole and fixed with a nut for the portion using the fixing female screw hole. As shown in FIG. 15 and FIG. 16, each part can be attached and replaced from the light emitting surface side by adopting a structure in which a magnet is arranged at a place to be fixed using a screw and fixed based on a magnetic force. Work can be done.
　上記実施の形態では、面状発光の最小単位を面状発光パネル１０とし（図３参照）、次に面状発光パネル１０を４枚組み合わせた構成を面状発光モジュール１００（面状発光パネル１０は４枚）とし、次に、面状発光モジュール１００を４枚組み合わせた構成を面状発光ユニット１３０（面状発光パネル１０は１６枚）とし、さらに、面状発光ユニット１３０を４枚組み合わせた構成を内照式照明装置（面状発光パネル１０は６４枚）と定義しているが、以下のように定義することも可能である。 In the above embodiment, the minimum unit of planar light emission is the planar light emitting panel 10 (see FIG. 3), and then the planar light emitting module 100 (planar light emitting panel 10) is configured by combining four planar light emitting panels 10 next. Next, a configuration in which four planar light emitting modules 100 are combined is a planar light emitting unit 130 (16 planar light emitting panels 10), and four planar light emitting units 130 are combined. Although the configuration is defined as an internally-illuminated lighting device (the number of planar light emitting panels 10 is 64), it can also be defined as follows.
　たとえば、最小単位の面状発光パネル１０を面状発光モジュール（面状発光パネル１０は１枚）と定義した場合には、この面状発光モジュールを４枚組み合わせた構成が、面状発光ユニットとなり（面状発光パネル１０は４枚）、この面状発光ユニットを４枚組み合わせた構成が、内照式照明装置（面状発光パネル１０は１６枚）となる。 For example, when the planar light emitting panel 10 of the minimum unit is defined as a planar light emitting module (one planar light emitting panel 10), a configuration in which four planar light emitting modules are combined becomes a planar light emitting unit. (The planar light-emitting panel 10 is four sheets), and a configuration in which four planar light-emitting units are combined is an internally illuminated illumination device (16 planar light-emitting panels 10).
　面状発光ユニット１３０を、面状発光モジュール（面状発光パネル１０は１６枚）と定義した場合には、この面状発光モジュールを４枚組み合わせた構成が、面状発光ユニットとなり（面状発光パネル１０は６４枚）、この面状発光ユニットを４枚組み合わせた構成が、内照式照明装置（面状発光パネル１０は２５６枚）となる。 When the planar light-emitting unit 130 is defined as a planar light-emitting module (16 planar light-emitting panels 10), a configuration in which four planar light-emitting modules are combined becomes a planar light-emitting unit (planar light-emitting unit). The panel 10 has 64 sheets), and the configuration in which four of the planar light emitting units are combined is an internally illuminated lighting device (the planar light emitting panel 10 has 256 sheets).
　上記実施の形態では、面状発光モジュール１００を４枚組み合わせた構成を面状発光ユニット１３０とし、この面状発光ユニット１３０を支持部材としての筺体６００に支持する構成を採用しているがこの構成に限定されない。複数の面状発光モジュール１００を、ユニットパネル７０を用いずに支持部材としての筺体６００に直接支持される構成の採用も可能である。ユニットパネル７０を支持部材として用い、筺体６００を用いない構成の採用も可能である。 In the above embodiment, a configuration in which four planar light emitting modules 100 are combined is referred to as a planar light emitting unit 130, and a configuration in which the planar light emitting unit 130 is supported by a housing 600 as a support member is employed. It is not limited to. It is also possible to adopt a configuration in which a plurality of planar light emitting modules 100 are directly supported by a housing 600 as a supporting member without using the unit panel 70. It is possible to employ a configuration in which the unit panel 70 is used as a support member and the housing 600 is not used.
　光源として、有機ＥＬパネルに限定されず、平面状の面状発光パネル（光源）を使用することも可能であり、一般的に多く出回っている平面状のリジッドパネル、フレキシブルパネル、複数の面状発光パネルを平面状にモジュール化した発光パネル、または、一般的なフレキシブルパネルにも適用が可能であり、用途に合わせて入手性の良い光源を選択して使用することが可能となる。 The light source is not limited to an organic EL panel, and a planar planar light-emitting panel (light source) can also be used. Generally, a large number of planar rigid panels, flexible panels, and a plurality of planar shapes. The present invention can also be applied to a light-emitting panel obtained by modularizing a light-emitting panel, or a general flexible panel, and a light source having high availability can be selected and used according to the application.
　以上、本発明の各実施の形態における内照式照明装置について説明したが、今回開示された実施の形態は全ての点で例示であって制限的なものではないと考えられるべきである。したがって、本発明の範囲は請求の範囲によって示され、請求の範囲と均等の意味および範囲内での全ての変更が含まれることが意図される。 As mentioned above, although the internal illumination type illuminating device in each embodiment of this invention was demonstrated, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. Therefore, the scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
　１　内照式照明装置、１０　面状発光パネル、１１　透明基板、１３　裏面、１４　陽極、１５　有機層、１６　陰極、１７　封止部材、１８　絶縁層、１９　背面、２０　分割領域、２１，２２，　電極取出部、５４　モジュールパネル、５４Ｓ，７０Ｓ，　隙間領域、５４ａ，５４ｂ，５４ｃ，５４ｄ　位置決め用穴、５４ｉ，５４ｋ，５４ｍ，５４ｐ，８３，８４　位置決め用ピン、５４ｅ，５４ｆ，５４ｇ，５４ｈ，５４ｊ，５４ｌ，５４ｎ，５４ｑ，７６ｂ，２０１ａ，２０１ｂ，３０５ａ，３０５ｂ　固定用穴、６０　照明パネル、７０　ユニットパネル、７１ｐ，７２ｐ，７３ｐ，７４ｐ　位置決め用ピン、７５　係合軸、７６　側部ブラケット、７６ａ，７７ａ，　だるま穴、７７　下部ブラケット、１００，１００Ａ　面状発光モジュール、１２０　両面テープ、１３０　面状発光ユニット、２００　第１光学部材、２０１　ベース部材、２０２　立壁部、２０２ａ，６０４ａ　固定用雌ねじ穴、２１０　反射部材、２１０ａ　ビス穴、２３０　ビス、３００　第２光学部材、３０１，５０１　反射面、３０２　傾斜辺、３０３　垂直辺、３０４，５０２　連結部、３０５　ブラケット、５００　第３光学部材、５１０　溝付きピン、５４１ｅ，５４１ｆ，５４１ｇ，５４１ｈ　磁石、６００　筺体、６０１　フレーム枠、６０２　桟、６０３　係合フック、６０４　固定用ベース、６１０ｓ　隙間領域。 DESCRIPTION OF SYMBOLS 1 Internal illumination type illuminator, 10 planar light emission panel, 11 transparent substrate, 13 back surface, 14 anode, 15 organic layer, 16 cathode, 17 sealing member, 18 insulating layer, 19 back surface, 20 divided area, 21, 22, Electrode extraction part, 54 module panel, 54S, 70S, gap area, 54a, 54b, 54c, 54d positioning hole, 54i, 54k, 54m, 54p, 83, 84 positioning pin, 54e, 54f, 54g, 54h, 54j , 54l, 54n, 54q, 76b, 201a, 201b, 305a, 305b fixing hole, 60 illumination panel, 70 unit panel, 71p, 72p, 73p, 74p positioning pin, 75 engagement shaft, 76 side bracket, 76a , 77a, Daruma hole, 77 Lower bracket, 100, 100A Light emitting module, 120 double-sided tape, 130 surface light emitting unit, 200 first optical member, 201 base member, 202 standing wall, 202a, 604a fixing female screw hole, 210 reflecting member, 210a screw hole, 230 screw, 300 second Optical member, 301,501 reflective surface, 302 inclined side, 303 vertical side, 304,502 connecting portion, 305 bracket, 500 third optical member, 510 grooved pin, 541e, 541f, 541g, 541h magnet, 600 housing, 601 Frame frame, 602 bar, 603 engagement hook, 604 fixing base, 610s clearance area.

Claims (3)

  1. 　複数の面状発光ユニットと、
    　複数の前記面状発光ユニットの相互の間に隙間領域を有するように前記面状発光ユニットを支持する支持部材と、
    　複数の前記面状発光ユニットと対向する位置に配置され、前記面状発光ユニットから照射される光を受ける照明パネルと、
    　前記隙間領域に配置され、前記面状発光ユニットから照射された光を照明パネル側に反射する光学部材と、を備え、
    　前記面状発光ユニットの前記支持部材への支持箇所は、前記隙間領域に設けられ、
    　前記光学部材は、前記支持箇所を覆うようにして前記隙間領域に設けられている、内照式照明装置。     A plurality of planar light emitting units;
    A support member that supports the planar light emitting unit so as to have a gap region between the plurality of planar light emitting units;
    An illumination panel that is disposed at a position facing the plurality of planar light emitting units and receives light emitted from the planar light emitting units;
    An optical member that is disposed in the gap region and reflects light emitted from the planar light emitting unit toward the lighting panel,
    A support location to the support member of the planar light emitting unit is provided in the gap region,
    The optical illumination device, wherein the optical member is provided in the gap region so as to cover the support portion.
  2. 　前記光学部材は、前記隙間領域に対して前記照明パネル側から着脱可能に支持されている、請求項１に記載の内照式照明装置。 The internal illumination type illumination device according to claim 1, wherein the optical member is detachably supported from the illumination panel side with respect to the gap region.
  3. 　前記面状発光ユニットは、前記支持部材に対して前記照明パネル側から着脱可能に支持されている、請求項２に記載の内照式照明装置。 The internally illuminated lighting device according to claim 2, wherein the planar light emitting unit is detachably supported from the lighting panel side with respect to the support member.
PCT/JP2014/061218 2013-04-26 2014-04-22 Internally illuminated lighting device WO2014175235A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033818A (en) * 2008-07-28 2010-02-12 Sonac Kk Surface light-emitting device having uniform light-emitting structure
JP2012119312A (en) * 2011-11-09 2012-06-21 Sharp Corp Plane-emission lighting system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010033818A (en) * 2008-07-28 2010-02-12 Sonac Kk Surface light-emitting device having uniform light-emitting structure
JP2012119312A (en) * 2011-11-09 2012-06-21 Sharp Corp Plane-emission lighting system

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