KR101252689B1 - LED lamp - Google Patents

LED lamp Download PDF

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Publication number
KR101252689B1
KR101252689B1 KR1020110055404A KR20110055404A KR101252689B1 KR 101252689 B1 KR101252689 B1 KR 101252689B1 KR 1020110055404 A KR1020110055404 A KR 1020110055404A KR 20110055404 A KR20110055404 A KR 20110055404A KR 101252689 B1 KR101252689 B1 KR 101252689B1
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KR
South Korea
Prior art keywords
light emitting
emitting diode
disposed
reflective surface
diode elements
Prior art date
Application number
KR1020110055404A
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Korean (ko)
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KR20120136461A (en
Inventor
김하철
정화균
Original Assignee
루미리치 주식회사
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Priority to KR1020110055404A priority Critical patent/KR101252689B1/en
Publication of KR20120136461A publication Critical patent/KR20120136461A/en
Application granted granted Critical
Publication of KR101252689B1 publication Critical patent/KR101252689B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/60—Light sources with three-dimensionally disposed light-generating elements on stacked substrates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The light emitting diode illumination device may include a plurality of first light emitting diode elements, a reflective surface disposed in front of the first light emitting diode element, and reflecting light emitted from the first light emitting diode element, and the half. It includes a plurality of second light emitting diode elements disposed in front of the slope.

Description

Light Emitting Diode Lighting Device {LED lamp}

The present invention relates to a light emitting diode (LED) lighting device.

Light emitting diodes have various advantages, such as good electrical efficiency and long lifespan, and have been widely used in lighting devices.

Various types of light emitting diode lighting devices have been introduced, and light emitting diode lighting devices having a bulb shape have been introduced.

Conventional light emitting diode illumination device has a problem that the light emitting diode element is mainly arranged to emit light forward, so that the total luminous flux and light distribution characteristics are not good.

The present invention has been made to solve the problems as described above, the problem to be solved by the present invention is to provide a light emitting diode illumination device with improved total luminous flux and light distribution characteristics.

An LED lighting apparatus according to an embodiment of the present invention, a plurality of first light emitting diode elements, a reflecting surface disposed in front of the first light emitting diode element reflects the light emitted from the first light emitting diode element, and the And a plurality of second light emitting diode elements disposed in front of the reflective surface.

The reflective surface may include a first reflective surface formed to reflect light emitted from the first light emitting diode element in a direction between the side and the front side.

The reflective surface may further include a second reflective surface formed to reflect light emitted from the first light emitting diode element in a direction between the side and the rear.

The light emitting diode lighting apparatus according to another embodiment of the present invention may further include a plurality of third light emitting diode elements disposed to face rearward.

The plurality of first light emitting diode elements may be disposed to face a preset direction between front and side surfaces.

The plurality of first light emitting diode elements may be disposed to face forward.

The plurality of second light emitting diode elements may be disposed to face forward or may be disposed to face a predetermined direction between the front and the side.

The plurality of second light emitting diode elements may be arranged in a plurality of layered structures in the front-rear direction.

A light emitting diode lighting apparatus according to another embodiment of the present invention, the housing, a first fixed frame installed in the housing, a plurality of first light emitting diode elements provided in the first fixed frame, the radiation from the first light emitting diode element And a reflective surface for reflecting the received light, a second fixing frame disposed in front of the first fixing frame, and a plurality of second light emitting diode elements provided in the second fixing frame.

The reflective surface may include a first reflective surface formed to reflect light emitted from the first light emitting diode element in a direction between the side and the front side.

The reflective surface may further include a second reflective surface formed to reflect light emitted from the first light emitting diode element in a direction between the side and the rear.

The reflective surface may be formed on an outer surface of the second fixing frame.

The light emitting diode lighting apparatus according to another embodiment of the present invention may further include a plurality of third light emitting diode elements disposed to face rearward.

The plurality of first light emitting diode elements may be disposed to face a preset direction between front and side surfaces.

The plurality of first light emitting diode elements may be disposed to face forward.

The plurality of second light emitting diode elements may be disposed to face forward or may be disposed to face a predetermined direction between the front and the side.

The plurality of second light emitting diode elements may be arranged in a plurality of layered structures in the front-rear direction.

According to the present invention, the reflection surface for reflecting the light emitted from the first light emitting diode element laterally and rearward is provided, thereby improving the light distribution characteristics, improving the total luminous flux, and improving the dark portion.

1 is a perspective view of a light emitting diode lighting apparatus according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.
3 is an exploded view of a light emitting diode lighting apparatus according to an embodiment of the present invention.
4 is an exploded perspective view of a light emitting diode lighting apparatus according to an embodiment of the present invention.
5 is a view showing a path of light of the LED lighting apparatus according to an embodiment of the present invention.
6 is a cross-sectional view of a light emitting diode lighting apparatus according to another embodiment of the present invention.
7 is a cross-sectional view of a light emitting diode lighting apparatus according to another embodiment of the present invention.
8 is a cross-sectional view of a light emitting diode lighting apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Like parts are designated with like reference numerals throughout the specification. When a member is said to be "in front" or "back" of another member, this includes not only being in front of another member or "directly behind" another member, but also in the presence of another member in the middle.

The housing 10 serves to provide a space in which the members described below are installed and maintain the overall appearance of the light emitting diode device. For example, the housing 10 may be formed to form a through hole along the front and rear directions, and may be formed of a metal, a non-metal, a plastic material, or the like, and may include surface treatment to improve appearance and heat dissipation characteristics.

A base 20 may be installed at the rear end (lower end in the drawing) of the housing 10. For example, the base 20 may be connected to the rear end of the housing 10 through a base holder 30. The base 20 may be formed of a metal material having electrical conductivity to receive external power.

Meanwhile, the power supply device 40 may be installed in the housing 10. For example, the power supply 40 may be a switching mode power supply (SMPS) and converts AC power supplied from the outside into a DC power supply.

In this case, the power supply device 40 may be installed on the bottom surface of the heat sink 50 installed in the housing 10. The heat sink 50 may be formed of a metal material having good thermal conductivity.

A plurality of first light emitting diode elements 60 for emitting light using a power source is provided. According to one embodiment of the invention, as shown in Figs. 2 and 3, the plurality of first light emitting diode elements 60 are arranged to face a preset direction between front and side. That is, as shown in FIGS. 2 and 3, the first light emitting diode element 60 is disposed so as to face a direction between the front side (upward direction in FIG. 2) and the lateral side (leftward and rightward direction in FIG. 2). As such, the first light emitting diode element 60 is disposed to face the direction between the front side and the front side instead of the front side, so that the emitted light can be radiated to the side and the rear more widely than when the first light emitting diode element 60 is disposed to face the front side. As a result, the orientation angle is increased, and the effects such as light distribution characteristics and dark areas can be improved.

In this case, as shown in FIGS. 2 and 3, the plurality of first light emitting diode elements 60 may be installed in the first fixing frame 70 installed in the housing 10. The first fixing frame 70 may include an inclined surface 71 in which the first light emitting diode element 60 is installed, and the inclined surface 71 is disposed between the front side and the side to which the first light emitting diode element 60 is to face. Is formed to be inclined so as to face a predetermined direction of the first light emitting diode element 60 may be installed on the inclined surface (71). On the other hand, the inclined surface 71 may be provided in a plurality of radial, the first light emitting diode element 60 may be provided on the plurality of inclined surface 71, respectively. Referring to FIG. 5, since the first light emitting diode element 60 is formed on the inclined surface 71, the total luminous flux may be improved and the light distribution characteristic may be improved.

At this time, although not explicitly shown in the drawings, a light emitting diode printed circuit board (PCB) may be installed on the inclined surface 71 of the first fixing frame 70 and the first light emitting diode element 60 may be installed thereon. Can be.

Meanwhile, according to one embodiment of the present invention, a reflective surface 80 reflecting light emitted from the first light emitting diode device 60 is provided.

The reflecting surface 80 includes a first reflecting surface 81 formed to reflect light emitted from the first light emitting diode element 60 in a direction between the side and the front. That is, referring to FIG. 2, the first reflecting surface 81 is disposed in front of the first light emitting diode element 60 and is formed to be inclined in the direction of spreading outward toward the front (upward direction), whereby the first light emitting diode The light emitted from the device 60 can be reflected into the space between the front (upward in the figure) and the side (lateral in the figure).

Furthermore, according to another embodiment of the present invention, the reflective surface 80 is the second reflective surface 83 is formed to reflect the light emitted from the first light emitting diode device 60 into the space between the side and the rear It may be further provided. That is, the second reflective surface 83 may be formed in front of the first light emitting diode element 60 but may have a plane extending laterally. For example, as shown in the drawing, the second reflective surface 83 may be formed extending outward from the tip of the first reflective surface 81.

Referring to FIG. 5, the light emitted from the first light emitting diode element 60 is reflected by the first reflecting surface 81 and the second reflecting surface 83 and evenly along the direction of the arrow toward the space between the front and the rear. It is possible to proceed so that the overall light distribution characteristics can be improved.

Meanwhile, according to one embodiment of the present invention, a plurality of second light emitting diode elements 90 disposed in front of the reflective surface 80 may be provided. For example, as shown in FIG. 2, the second light emitting diode element 90 may be disposed to face forward.

Although not shown in the drawings, according to another embodiment of the present invention, the second light emitting diode element 90 may be disposed to face a predetermined direction between the front and the side. That is, the second light emitting diode element 90 may be disposed to face a predetermined direction between the front side and the side like the first light emitting diode element 60 shown in FIG. 2. Accordingly, light distribution characteristics may be further improved.

In this case, the second light emitting diode element 90 may be installed to face the second fixing frame 100 disposed in front of the first fixing frame 70. For example, as shown in the figure, the second fixing frame 100 is a cap-shaped first member 101 and the upper surface of which is fixedly coupled to the upper surface 72 of the first fixing frame 70 It may include a second member 103 in the form of a plate coupled to. The first member 101 may be fastened to the first fixing frame 70 by the fastening bolt 105, and the second member 103 may be fastened to the first member 101 by the fastening bolt 107. Can be. The second light emitting diode element 90 may be installed on the upper surface of the second member 103.

As shown in the figure, the reflective surfaces 81 and 83 described above may be formed on the outer surface of the second fixing frame 100. That is, as shown in the figure, the reflective surfaces 81 and 83 may be formed on the outer surface of the first member 101 of the second fixing frame 100, respectively.

On the other hand, the light emitting cover 120 surrounding the front of the first light emitting diode device 60 and the second light emitting diode device 90 described above may be provided. The transparent cover 120 may have a form of a cap open below and may be fastened to the front end of the housing 10. Light emitted from the first and second light emitting diode elements 6 and 90 passes through the floodlight cover 120. The transparent cover 120 may be formed of a synthetic resin material or glass material having good light transmittance and having a light diffusing effect.

Meanwhile, referring to FIG. 6, according to another embodiment of the present invention, a third light emitting diode device 110 may be further provided to face rearward. For example, the third light emitting diode device 110 may be disposed to face the rear surface of the second fixing frame 100. The third light emitting diode device 110 may be installed on the rear surface of the second member 103 constituting the second fixing frame 100, that is, on the second reflective surface 83. By having the third light emitting diode element 110 emitting light to the rear, the light may be emitted to the rear to further improve the light distribution characteristics.

7 is a cross-sectional view of a light emitting diode lighting apparatus according to another embodiment of the present invention. According to the present embodiment, the first light emitting diode element 60 is disposed forward. That is, in this embodiment, the fixed frame 170 does not have an inclined surface but has a flat mounting surface 171 facing forward, and the first light emitting diode element 60 is mounted on the mounting surface 171. . In this case, the plurality of first light emitting diode elements 60 may be disposed radially on the mounting surface 171, and the second fixing frame 100 may be fixed to a center between the plurality of first light emitting diode elements 60. Can be.

8 is a cross-sectional view of a light emitting diode lighting apparatus according to another embodiment of the present invention. According to the present embodiment, the second light emitting diode elements 90 may be arranged in a plurality of layered structures in the front-rear direction. For example, the second fixing frame 100 is provided in plural in a plurality of layered structures, and the second light emitting diode elements 90 are coupled to each other, so that the second light emitting diode elements 90 are plural in the front-rear direction. It can be arranged in a layered structure. 8 illustrates a case in which the second light emitting diode elements 90 are arranged in two layers, but the number of layers is not limited thereto. The light emitting area can be enlarged by arranging the second light emitting diode elements 90 in a plurality of layered structures, and further, by adjusting the number of layers of the second light emitting diode elements 90, the required length and output amount of the lighting device can be easily adjusted. Can be implemented.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

60, 90, 110: light emitting diode elements
81, 83: reflective surface
110: floodlight cover

Claims (17)

A plurality of first light emitting diode elements,
A reflecting surface disposed in front of the first light emitting diode element to reflect light emitted from the first light emitting diode element,
A plurality of second light emitting diode elements disposed in front of the reflective surface, and
A light emitting diode illumination device comprising a plurality of third light emitting diode elements arranged to face rearward. In claim 1,
The reflective surface includes a light emitting diode illumination device including a first reflective surface formed to reflect the light emitted from the first light emitting diode element in the direction between the side and the front. In claim 2,
The reflective surface further comprises a second reflective surface formed to reflect the light emitted from the first light emitting diode element in the direction between the side and the rear. delete In claim 1,
And the plurality of first light emitting diode elements are disposed to face a predetermined direction between front and side surfaces. In claim 1,
The plurality of first light emitting diode elements are disposed to face forward. In claim 1,
And the plurality of second light emitting diode elements are disposed to face forward or to face a predetermined direction between front and side. In claim 1,
And a plurality of second light emitting diode elements arranged in a plurality of layered structures in a front-rear direction. housing,
A first fixing frame installed in the housing,
A plurality of first light emitting diode elements provided in the first fixed frame;
A reflective surface reflecting light emitted from the first light emitting diode element,
A second fixing frame disposed in front of the first fixing frame,
A plurality of second light emitting diode elements provided in the second fixed frame, and
A light emitting diode illumination device comprising a plurality of third light emitting diode elements provided in the second fixing frame so as to face rearward. The method of claim 9,
The reflective surface includes a light emitting diode illumination device including a first reflective surface formed to reflect the light emitted from the first light emitting diode element in the direction between the side and the front. 11. The method of claim 10,
The reflective surface further comprises a second reflective surface formed to reflect the light emitted from the first light emitting diode element in the direction between the side and the rear. The method of claim 9,
The reflective surface is formed on the outer surface of the second fixed frame light emitting diode lighting device. delete The method of claim 9,
And the plurality of first light emitting diode elements are disposed to face a predetermined direction between front and side surfaces. The method of claim 9,
The plurality of first light emitting diode elements are disposed to face forward. The method of claim 9,
And the plurality of second light emitting diode elements are disposed to face forward or to face a predetermined direction between front and side. The method of claim 9,
And a plurality of second light emitting diode elements arranged in a plurality of layered structures in a front-rear direction.
KR1020110055404A 2011-06-09 2011-06-09 LED lamp KR101252689B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110055404A KR101252689B1 (en) 2011-06-09 2011-06-09 LED lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110055404A KR101252689B1 (en) 2011-06-09 2011-06-09 LED lamp

Publications (2)

Publication Number Publication Date
KR20120136461A KR20120136461A (en) 2012-12-20
KR101252689B1 true KR101252689B1 (en) 2013-04-09

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101484199B1 (en) 2012-11-28 2015-01-16 현대자동차 주식회사 Planetary gear train of automatic transmission for vehicles

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1031905A (en) * 1996-07-18 1998-02-03 Koito Mfg Co Ltd Marker lamp for vehicle
JP2010086946A (en) * 2008-09-04 2010-04-15 Panasonic Corp Light source for illumination and luminaire with reflector using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1031905A (en) * 1996-07-18 1998-02-03 Koito Mfg Co Ltd Marker lamp for vehicle
JP2010086946A (en) * 2008-09-04 2010-04-15 Panasonic Corp Light source for illumination and luminaire with reflector using the same

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