JP5790932B2 - lighting equipment - Google Patents

Description

  Embodiments described herein relate generally to a lighting fixture including a main light source unit and an indirect light source unit.

In general residential lighting fixtures, an adapter is electrically and mechanically connected to a hanging ceiling body installed on a fixture mounting surface such as a ceiling surface, and a fixture body having a light source part is attached to the adapter. It has become. In such a luminaire, indoor lighting is performed by light emitted from the main light source unit.
On the other hand, there has been considered a lighting fixture that illuminates the ceiling surface with indirect light together with the light emitted from the main light source unit to improve the sense of brightness in the room.

LED ceiling light: Sharp [July 22, 2011 Internet search] (https://www.sharp.co.jp/led_lighting/ceiling/)

Japanese Patent Laid-Open No. 2001-6404 JP 2002-140910 A JP 2008-7779A

However, in the lighting fixture as described above, for example, when a plurality of indirect light source portions are provided on the back side of the fixture body and the lighting fixture is attached to the ceiling surface, the lighting fixture is slightly inclined, and each indirect light A phenomenon may occur in which the distance between the light source unit and the ceiling surface is not constant. Therefore, the light distribution characteristic of the light irradiated from the indirect light source unit is not stable, and there arises a problem that the light distribution characteristic varies depending on the mounting state of the luminaire, and variation occurs.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture that can stabilize the light distribution characteristics of light emitted from the light source unit and can reduce variations in the light distribution characteristics. To do.

The lighting fixture according to the present embodiment includes a main body having an opening facing a wiring fixture installed on the fixture mounting surface, a main light source unit disposed on the main body and irradiating light on the front side, and a rear side of the main body. A lighting device cover which is disposed on the back side of the main body so as to protrude to the opening and has an opening corresponding to the opening of the main body, and the fixture mounting surface around the opening on the back side of the lighting device cover And an elastic member disposed so as to be interposed therebetween.

According to the embodiment of the present invention, it is possible to stabilize the light distribution characteristics of the light emitted from the light source unit , and it is possible to provide a lighting fixture that can reduce variations in the light distribution characteristics.

It is a perspective view which shows the lighting fixture which concerns on embodiment of this invention. It is a disassembled perspective view of the front side which shows the lighting fixture. It is a disassembled perspective view of the back side which shows the lighting fixture. In the same lighting fixture, it is a top view which removes and shows a shade and a light source part cover. It is a perspective view of the back side which shows the lighting fixture. It is a top view of the back side which shows the same lighting fixture. It is a longitudinal cross-sectional view which shows the same lighting fixture. It is sectional drawing which shows the state which attached the lighting fixture to the ceiling surface.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8. In each drawing, the wiring connection relationship using lead wires or the like is omitted. In addition, the same code | symbol is attached | subjected to the same part and the overlapping description is abbreviate | omitted.

  The lighting apparatus of the present embodiment is for a general house that is used by being attached to a hanging sealing body as a wiring apparatus installed on the apparatus mounting surface, and has a plurality of light emitting elements mounted on a substrate. The room is illuminated by light emitted from the section.

  The lighting fixture includes a fixture main body 1, a main light source unit 2, a lighting device 3, and a center member 4. The lighting fixture further includes an adapter guide 5, an optical sensor 6, a shade 7, a cover member 8, an indirect light source unit 9, and an elastic member 10. Moreover, the adapter A electrically and mechanically connected to the hooking sealing body Cb installed in the ceiling surface C as an instrument attachment surface is provided (refer FIG. 8). Such a lighting fixture is formed in a round and circular appearance, and the front side is a light irradiation surface and the back side is a mounting surface to the ceiling surface C. These components will be described sequentially.

  As shown in FIGS. 2 to 7, the main body 1 is a chassis formed in a circular shape from a flat plate of a metal material such as a cold-rolled steel plate, and a circle in which an adapter guide 5 to be described later is disposed at a substantially central portion. A shaped opening 11 is formed. The opening 11 is formed in a shape substantially equal to the outer shape of the adapter guide 5 with a part of a circular shape protruding outward.

  On the outer peripheral side of the opening 11, a projecting portion 12 having a quadrangular shape with a corner portion having an R shape and projecting to the back side is formed. Further, on the outer peripheral side of the protruding portion 12, a circular annular protruding portion 13 protruding to the front surface side is formed. Further, on the outer peripheral side of the projecting portion 13, a circular annular projecting portion 14 is formed so as to project on the back side so as to be continuous with the projecting portion 13 in the radial direction, in other words, a circular annular projecting portion 14 forming a recess on the front side. .

  In the recess formed by the projecting portion 14, a saddle bracket 75 to which the shade 7 is detachably attached is disposed. These protrusions 12, 13, and 14 mainly function as attachment portions for members attached to the chassis, and also have a function for reinforcing the strength of the chassis and a function for increasing the heat radiation area.

  The main body 1 corresponds to a chassis in this embodiment, but may be referred to as a case, a reflector, or a base. In general, it means a member or a part in which the main light source unit 2 is directly or indirectly arranged, and is not interpreted in a particularly limited manner.

  As shown in FIGS. 2, 4 and 7, the main light source unit 2 includes a substrate 21 and a plurality of light emitting elements 22 mounted on the substrate 21. The substrate 21 is disposed so that four arc-shaped substrates 21 having a predetermined width dimension are connected to each other, and is formed in a substantially circle shape as a whole. That is, the substrate 21 formed in a substantially circle shape as a whole is composed of four divided substrates 21.

  By using the substrate 21 thus divided, it is possible to suppress the deformation of the substrate 21 by absorbing thermal contraction at the divided portion of the substrate 21. In addition, although it is preferable to use the board | substrate 21 divided | segmented into plurality, you may make it use the board | substrate of 1 sheet integrally formed in the substantially circle shape.

  The board | substrate 21 consists of a flat plate of the glass epoxy resin (FR-4) which is an insulating material, and the wiring pattern is formed with the copper foil on the surface side. The light emitting element 22 is electrically connected to this wiring pattern. Further, a white resist layer acting as a reflective layer is applied on the wiring pattern, that is, on the surface of the substrate 21.

  The material of the substrate 21 can be a ceramic material or a synthetic resin material when an insulating material is used. Furthermore, when it is made of metal, a metal base substrate in which an insulating layer is laminated on one surface of a base plate having good thermal conductivity such as aluminum and excellent heat dissipation can be applied.

  The light emitting element 22 is an LED, which is a surface mount type LED package. A plurality of LED packages are mounted in a plurality of rows along the circumferential direction of the circle-shaped substrate 21, in the present embodiment, in three rows on the circumference of substantially concentric circles having different radii. That is, it is mounted over the inner circumferential row, the outer circumferential row, and an intermediate row between the inner circumferential row and the outer circumferential row.

  The LED package is roughly composed of an LED chip disposed in a cavity formed of ceramics or synthetic resin, and a translucent resin for molding such as epoxy resin or silicone resin that seals the LED chip. It is configured.

  The LED packages mounted on the inner and outer rows are used in white light (N) and light bulb color (L), which are on the circumference. Are arranged alternately at substantially equal intervals. The LED chip is an LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light of daylight white (N) and light bulb color (L), the light is mainly complementary to the blue light. Yellow phosphors that emit some yellow light are used.

  As the LED packages mounted in the middle row, those that emit light in red (R), green (G), and blue (B) are used. Accordingly, the LED chips are LED chips that emit red, green, and blue light, respectively, and these LED chips are sealed with a translucent resin for molding.

  These LED packages that emit red (R), green (G), and blue (B) light are sequentially spaced on the circumference sequentially from red (R), green (G), and blue (B) at substantially equal intervals. It is arranged in the space.

  The arrangement of red (R), green (G), and blue (B) in the LED package is not specified and may be in any order. For example, the arrangement is in the order of green (G), red (R), and blue (B). May be. Further, adjacent LED packages are preferably arranged with different emission colors, but are not particularly limited. As an example, it is possible to continuously arrange two same colors such as red (R), red (R), green (G), green (G), blue (B), and blue (B). is there.

  In this way, a plurality of light emitting elements 22 that emit light in the daylight white color (N) and the light bulb color (L) are arranged in a line on the circumference of substantially concentric circles having different radii. A plurality of light emitting elements emitting light in red (R), green (G), and blue (B) in a row between the light emitting elements 22 that emit light in the daylight white (N) and light bulb color (L). The light emitting element 22 is disposed.

  Accordingly, a plurality of light-emitting elements 22 having different emission colors, that is, light-emitting elements 22 that emit daylight white (N), light bulb color (L) red (R), green (G), and blue (B) are arranged. Therefore, the range of light colors that can be expressed by mixing these light is wide, and the light color can be appropriately adjusted by adjusting the output of the light emitting element 22.

  In addition, LED may be made to mount an LED chip directly on the board | substrate 21, and you may make it mount a bullet-type LED, and a mounting system and a format are not exceptionally limited.

  As representatively shown in FIG. 7, the main light source unit 2 configured in this way is such that the substrate 21 is positioned around the opening 11 of the main body 1, and the mounting surface of the light emitting element 22 is the front side, that is, the lower side. Are arranged in the direction of irradiation. Moreover, it attaches by fixing means, such as a screw | thread, so that the back surface side of the board | substrate 21 may closely_contact | adhere to the inner surface side of the main body 1. FIG. Accordingly, the substrate 21 is thermally coupled to the main body 1 so that heat from the substrate 21 is conducted from the back surface side to the main body 1 and radiated.

  Note that the substrate 21 may be directly attached to the main body 1 and disposed, or may be indirectly attached via another member. The configuration is not particularly limited.

  As shown in FIGS. 2 and 7, a light source unit cover 25 is disposed on the front side of the main light source unit 2. The light source cover 25 is made of, for example, a transparent synthetic resin having an insulating property such as polycarbonate or acrylic resin, and is integrally formed in a substantially circle shape along the arrangement of the light emitting elements 22, and includes the light emitting elements 22. Are arranged so as to cover the entire surface of the substrate 21.

  Therefore, the light emitted from the light emitting element 22 passes through the light source unit cover 25. Further, since the entire surface of the substrate 21 is covered, the charging unit is covered with the light source unit cover 25 to ensure insulation.

  As representatively shown in FIGS. 3 and 7, the lighting device 3 includes a circuit board 31 and circuit components 32 such as a control IC, a transformer, and a capacitor mounted on the circuit board 31. The circuit board 31 is formed in a plate shape so as to surround the periphery of the center portion, and the circuit component 32 is mounted on the surface side thereof.

  The circuit board 32 is electrically connected to the adapter A side, and is connected to a commercial AC power source via the adapter A. Therefore, the lighting device 3 receives this AC power supply, generates a DC output, supplies the DC output to the light emitting element 22 via the lead wire, and controls the lighting of the light emitting element 22.

  Such a lighting device 3 is attached to and covered with the lighting device cover 35 and is arranged on the back side of the main body 1. In this case, the circuit board 31 is attached with the circuit component 32 facing the front side (the lower side in the drawing).

The lighting device cover 35 is formed in a substantially rectangular short cylinder shape by a metal material such as a cold rolled steel plate, and the side wall 35a is inclined so as to expand toward the front surface side. An opening 35c is formed at the center.
As shown in FIGS. 3, 5 to 7, the lighting device cover 35 is mounted with a front flange mounted on the protruding portion 12 of the chassis and screwed.
In a state where the lighting device cover 35 is attached to the chassis, the lighting device cover 35 is arranged on the rear side of the chassis so that the periphery of the opening 11 of the chassis protrudes to the rear side, and the opening 35c of the lighting device cover 35 is It comes to face the opening 11 of the chassis.

  As shown in FIGS. 2, 4 and 7, the center member 4 is made of a synthetic resin material such as PBT resin, and is formed in a substantially short cylindrical shape. The center member 4 is hooked at the center and faces the sealing body Cb. An opening 41 is provided. An annular space 42 is formed around the opening 41, and the optical sensor 6 described later is disposed in the space 42. Further, a light receiving window 43 that faces the light receiving portion of the optical sensor 6 is formed on the front wall of the center member 4.

  As shown in FIG. 7, the center member 4 configured in this way is attached to the chassis with a flange on the back side screwed to the chassis via the light source unit cover 25. The center member 4 can be directly or indirectly attached to the chassis, and its specific attachment configuration is not limited.

  The adapter guide 5 is a member through which the adapter A is inserted and engaged. As shown in FIGS. 3 and 7, the adapter guide 5 is formed in a substantially cylindrical shape, and an engagement port 51 through which the adapter A is inserted and engaged is provided at the center. The adapter guide 5 is disposed corresponding to the opening 11 formed in the central portion of the main body 1.

  As shown in FIG. 7, the optical sensor 6 is an illuminance sensor, and includes a sensor element such as a photodiode, and operates to detect ambient brightness and output a detection signal. Thereby, when the surroundings are bright, the main light source unit 2, that is, the light emitting element 22 is controlled to be dimmed (dimmed) and turned on.

  The optical sensor 6 is mounted on the substrate and is disposed and attached in the space 42 of the center member 4 so that the light receiving portion thereof faces the light receiving window 43. More specifically, the substrate is screwed to the boss of the center member 4, the optical sensor 6 is accommodated in the guide tube, and the light receiving portion thereof is disposed to face the light receiving window 43.

  The shade 7 is formed in a substantially circular shape from a material having translucency such as acrylic resin and having a milky white diffusivity, and a circular opening 71 is formed in the central portion. A shade decorative frame 7a is attached to the outer periphery of the shade 7, and the shade decorative frame 7a is formed of a transparent material made of acrylic resin or the like.

  The shade 7 is detachably attached to the outer peripheral edge of the main body 1 so as to cover the front side of the main body 1 including the main light source portion 2. Specifically, by rotating the shade 7, the shade mounting bracket 74 provided on the shade 7 is engaged with the shade receiving bracket 75 provided in the recess formed by the protruding portion 14 of the main body 1. Installed by.

  Further, when removing the shade 7, it can be removed by rotating the shade 7 in the direction opposite to that at the time of attachment and releasing the engagement between the shade attachment fitting 74 and the shade receiving fitting 75.

  The shade 7 is preferably configured to be detachably attached to the outer peripheral edge of the main body 1, but may be configured to be fixed to the main body 1 by a fixing means such as a screw. This is because in a lighting fixture that can be expected to have a long lifetime using the light emitting element 22 as a light source, there is little need to replace the light source for maintenance or to clean the inside.

As shown in FIGS. 2 and 7, the cover member 8 is formed in a circular shape from a material such as a transparent acrylic resin. The cover member 8 corresponds to the opening 71 of the shade 7, is attached to the front wall of the center member 4, and is disposed so as to cover and close the opening 41 of the center member 4. Further, the cover member 8 is formed with a circular transmission portion 81 that faces the light receiving window 43 of the optical sensor 6.
In addition, it is desirable to stick an opaque film material or the like on the front surface side of the cover member 8 leaving at least the transmission part 81.

The indirect light source unit 9 is disposed on the back side of the main body 1 and mainly has a function of illuminating the ceiling surface brightly. As shown in FIG. 3 and FIG. 5 to FIG. 7, a plurality of indirect light source portions 9 are arranged around the adapter guide 5, in other words, around the opening 11 in the main body 1. 91 and a plurality of light emitting elements 92 mounted on the substrate 91.
The substrate 91 is formed in a substantially rectangular flat plate, and the light emitting elements 92 are mounted in a line along the longitudinal direction of the substrate 91.

  Substrates 91 on which the light emitting elements 92 are mounted are attached to four locations on the side wall 35 a of the lighting device cover 35. In this case, the lighting device cover 35 is formed in a substantially square shape, and the substrate 91 is attached to the linear flat surface of the side wall 35a, so that the attachment is stably performed.

Further, since the side wall 35a that forms the mounting portion of the substrate 91 is formed in an inclined shape that expands toward the front side, the substrate 91 is directed obliquely upward, that is, in the ceiling surface direction, and the light emitting element The light emitted from 92 is effectively irradiated toward the ceiling surface direction.
Further, each indirect light source unit 9 is covered with a box-like translucent cover 93.

  The light emitting element 92 is an LED, like the main light source unit 2, and is a surface mount type LED package. The light emitting element 92 is connected to the lighting device 3 and is controlled to be turned on.

  In addition, although it is preferable that the board | substrate 91 is orient | assigned diagonally upward, the case where it is orient | assigned to the vertical direction or a horizontal direction may be sufficient, for example. When directed in the vertical direction, the light emitted from the light emitting element 92 is mainly irradiated in the horizontal direction, but part of the light is irradiated onto the ceiling surface due to the widening of the light distribution range. When the light is directed in the horizontal direction, the light emitted from the light emitting element 92 is mainly irradiated in the vertical direction and is applied to the ceiling surface.

  Further, the indirect light source unit 9 is not necessarily attached to the lighting device cover 35 as long as it can be disposed on the back side of the main body 1. The case where it attaches to another member or part may be sufficient.

  The elastic member 10 is attached in the vicinity of the attachment position of each of the plurality of indirect light source units 9. The elastic member 10 is a member disposed so as to be interposed between the lighting device and the ceiling surface C in a state in which the lighting device is attached to the ceiling surface C as the device mounting surface (see FIG. 8).

  Specifically, the elastic member 10 is a metal spring member made of a material such as stainless steel, and is attached to the back side of the lighting device cover 35 corresponding to the attachment position of each indirect light source unit 9. . The elastic member 10 is formed by bending a horizontally long rectangular leaf spring, and has a fixing portion 10a at the center, and obliquely upward (back side) from both sides of the fixing portion 10a. An extending part 10b is formed so as to expand, and a rectangular contact part 10c is formed on the tip side.

Further, a screw through hole is formed in the fixing portion 10 a, and the elastic member 10 is attached to the lighting device cover 35 by an attachment screw that passes through the screw through hole and is screwed into the back side of the lighting device cover 35. Fixed to the back side .
A plurality of such elastic members 10, that is, all of the four elastic members 10 have the same form and have the same elastic force.

  In the fixed state of the elastic member 10, as shown in FIG. 7 as a representative, the elastic member 10 disposed on the back side of the lighting device cover 35 has a fixing portion 10a as a fulcrum in the front side direction (arrow direction in the figure). It can be elastically deformed with a spring action. As shown mainly in FIG. 6, the extending direction of the extending part 10 b, in other words, the longitudinal direction of the elastic member 10 coincides with the longitudinal direction of the indirect light source part 9 so that both are arranged in parallel. Placed in. Therefore, it is possible to avoid the elastic member 10 acting as an obstacle for light emitted from the indirect light source unit 9.

In addition, you may make it provide non-slip | skid parts, such as sponge and silicone rubber, by adhesion | attachment etc. in the contact part 10c. Further, for example, the non-slip portion may be formed by directly processing the contact portion 10c.
Therefore, the contact portion 10c means a portion that directly or indirectly contacts the ceiling surface C.

  In addition, the elastic member 10 may be a member that is disposed so as to be elastically interposed between the lighting fixture and the ceiling surface C in a state where the lighting fixture is attached to the ceiling surface C as the fixture mounting surface. For example, an elastically deformable material such as sponge or silicone rubber can be applied. However, in consideration of thermal durability, it is desirable to apply a material such as metal or silicone rubber.

  As shown in FIG. 8, the adapter A is electrically and mechanically connected to the hooking sealing body Cb installed on the ceiling surface C by the hooking blade provided on the upper surface side, and has a substantially cylindrical shape. A pair of locking portions A1 are provided on both sides of the peripheral wall so as to always protrude to the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating a lever provided on the lower surface side. Further, a power cord (not shown) connected to the lighting device 3 is led out from the adapter A, and is connected to the lighting device 3 via a connector.

Next, the attachment state to the ceiling surface C of a lighting fixture is demonstrated with reference to FIG. First, the adapter A is electrically and mechanically connected to the hanging sealing body Cb installed on the ceiling surface C in advance. With the cover member 8 of the luminaire removed, the fixture body 1 is held until the engaging portion 51 of the adapter A is securely engaged with the engagement port 51 of the adapter guide while aligning the engagement port 51 of the adapter guide with the adapter A. The mounting operation is performed by manually pushing up from the lower side against the elastic force of the elastic member 10.
Next, the cover member 8 is attached, and the cover member 8 is closed and covered with the opening 41 in the center portion of the center member 4 facing the hooking sealing body Cb.

  In this state, the elastic member 10 is elastically deformed, and the contact portion 10c is in elastic contact with the ceiling surface C. And the contact part 10c can contact | abut so that it may be parallel to the ceiling surface C substantially planarly, or a front-end | tip part may face a little perpendicular direction.

  Therefore, the elastic member 10 is interposed between the back side of the lighting device cover 35, which is the back side of the fixture body 1, and the ceiling surface C with elastic deformation in the compression direction. By the spring action, the ceiling surface C is securely held and attached.

  More specifically, the distance d between the ceiling surface C and each indirect light source unit 9 can be kept constant by the action of the elastic member 10, and the emission angle of light emitted from each indirect light source unit 9 Can be made constant. As a result, it is possible to stabilize the light distribution characteristics, and it is possible to perform indirect illumination by effectively irradiating the ceiling surface C. In addition, since the elastic member 10 corresponds to each indirect light source unit 9 and is disposed in the vicinity thereof, the separation distance d between the ceiling surface C and each indirect light source unit 9 is more reliably fixed. Can be expected.

  When removing the luminaire, the cover member 8 is removed, and the lever provided on the adapter A is operated through the opening 41 of the center member 4 to disengage the engaging portion A1 of the adapter A. be able to.

  When power is supplied to the lighting device 3 in a state where the lighting fixture is attached to the ceiling surface C, the light emitting elements 22 are energized through the substrate 21 in the main light source unit 2, and each light emitting element 22 is lit. The light emitted from the light emitting element 22 to the front side is transmitted through the light source cover 25, diffused by the shade 7, and transmitted to be emitted outward. Therefore, the lower part is illuminated within a predetermined light distribution range.

At the same time, when the indirect light source unit 9 is energized, each light emitting element 92 is turned on, and the light emitted obliquely upward from the light emitting element 92 is transmitted through the translucent cover 93, and the adapter guide. The ceiling surface is mainly irradiated so as to radiate from the surroundings of 5. Therefore, the ceiling surface becomes bright and the feeling of brightness in the space can be improved.
In this case, stabilization of the light distribution characteristic of the light emitted from the indirect light source unit 9 can be realized, and effective indirect illumination can be performed.

As described above, when the light emitting element 22 is used as the light source in the main light source unit 2, the light emitted from the light emitting element 22 has a strong directivity, and thus the light distribution range tends to be narrowed. By providing the indirect light source unit 9 on the back side of the main body 1, the brightness of the space can be improved. Therefore, the provision of the indirect light source unit 9 is an effective means when the light source of the main light source unit 2 is the light emitting element 22.
Further, the lighting state of the main light source unit 2 and the indirect light source unit 9 is controlled by an optical sensor 6 that detects ambient brightness and outputs a detection signal.

  On the other hand, the heat generated from the light emitting element 22 is effectively conducted to the main body 1 because the back side of the substrate 21 is thermally coupled to the main body 1, and is radiated over a wide area. Moreover, since the protrusion parts 12, 13, and 14 are formed in the main body 1, the heat radiation area can be increased, and the heat radiation effect can be further enhanced.

  In addition, since the lighting device cover 35 is placed and attached to the projecting portion 12 of the main body 1, heat is conducted from the main body 1 to the lighting device cover 35 and heat dissipation is promoted. Further, the heat generated from the light emitting element 92 of the indirect light source unit 9 is conducted from the back side of the substrate 91 to the side wall 35a of the lighting device cover 35, and further transmitted to the elastic member 10 to be radiated.

As described above, according to the present embodiment, the elastic member 10 can keep the separation distance d between the ceiling surface C and each indirect light source unit 9 constant, and is irradiated from the indirect light source unit 9. Providing a luminaire that can stabilize the light distribution characteristics of light and, in turn, can stabilize the light distribution characteristics of light emitted from the main light source unit 2 and can reduce variations in the light distribution characteristics It becomes possible to do.

  In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. Moreover, the said embodiment is shown as an example and is not intending limiting the range of invention. For example, two indirect light source units may be provided and four elastic members may be provided. In this case, two elastic members are disposed in the vicinity of the two indirect light source units, and the remaining elastic members are disposed at positions not corresponding to the indirect light source units. Become so.

  Moreover, in the said embodiment, although what used light emitting elements, such as LED suitable as a light source, was demonstrated, a light source is not specifically limited, It prevents applying to the lighting fixture which uses a fluorescent lamp etc. as a light source. It is not a thing.

1 ... appliance body, 2 ... main light source,
3 ... lighting device, 4 ... center member,
5 ... Adapter guide, 6 ... Optical sensor,
7 ... sade, 8 ... cover member,
9 ... Indirect light source unit, 10 ... Elastic member,
11 ... opening, 21 ... substrate,
22 ... Light emitting element (LED), 25 ... Light source cover,
35 ... lighting device cover, 91 ... substrate,
92 ... Light emitting element (LED), A ... Adapter,
C ... fixture mounting surface (ceiling surface), Cb ... wiring fixture (hook ceiling body)

Claims (4)

A body having an opening facing the wiring device installed on the device mounting surface;
A main light source unit disposed on the main body and irradiating light on the front side;
A lighting device cover disposed on the back side of the main body so as to protrude toward the back side of the main body and having an opening corresponding to the opening of the main body ;
An elastic member disposed around an opening on the back side of the lighting device cover so as to be interposed between the fixture mounting surface;
The lighting fixture characterized by comprising. 2. The illumination according to claim 1, wherein a plurality of indirect light source parts are disposed on the back side of the main body, and the indirect light source parts are disposed around the opening of the main body. Instruments. The lighting apparatus according to claim 2 , wherein a light emitting element is used as a light source as the main light source unit and the indirect light source unit.   The lighting device according to any one of claims 1 to 3, wherein the elastic member is a metal spring member.

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