CN103672451A - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN103672451A CN103672451A CN201210326706.8A CN201210326706A CN103672451A CN 103672451 A CN103672451 A CN 103672451A CN 201210326706 A CN201210326706 A CN 201210326706A CN 103672451 A CN103672451 A CN 103672451A
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- 230000001902 propagating effect Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 28
- 238000005286 illumination Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000013041 optical simulation Methods 0.000 description 4
- 230000001795 light effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 241001025261 Neoraja caerulea Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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- 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
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
- F21V13/02—Combinations of only two kinds of elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- 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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
- F21Y2103/33—Elongate light sources, e.g. fluorescent tubes curved annular
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Planar Illumination Modules (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
A lighting device comprises a shell, a light guide plate and a plurality of light sources according to the embodiment of the technology. The shell comprises a bottom and a side wall part; the light guide plate is arranged at the bottom of the shell and comprises a side face, a first surface and a second surface opposite to the first surface, and the second surface is closer to the bottom of the shell than the first surface; the light sources are arranged on the side face of the light guide plate and emit light to the side face, and the light is transmitted in the light guide plate and then is emitted outside from the first surface. The light guide plate is arranged, so that the lighting device mixes the light from the multiple light sources under the condition of very small light loss. In this way, the lighting device can keep high light-emitting efficiency, and smooth emergent light intensity distribution can be achieved without generating multiple shadows.
Description
Technical field
The disclosure relates to a kind of lighting device, particularly, relates to a kind of lighting device that can obtain level and smooth output intensity distribution.
Background technology
Recently, the spot light such as LED is applied to lighting device more and more.Figure 1A and Figure 1B show the Down lamp (down light) 1 as an example of the lighting device of use spot light, and wherein, Figure 1A shows the cutaway view of Down lamp 1, and Figure 1B shows the top view of Down lamp 1.With reference to Figure 1A and Figure 1B, Down lamp 1 comprises a plurality of LED 12 of the transmitting different color light on the bottom that has the housing 11 of bottom and side wall portion and be arranged in housing 11, and a plurality of LED 12 are to be disposed on the bottom of housing 11 around conglobate mode.
In the example shown in Figure 1A and Figure 1B, a plurality of LED 12 are arranged in the diverse location place on the bottom of housing 11 separatedly, and each LED 12 distributes according to himself position and luminous intensity, and the diverse location place on plane of illumination forms hot spot.These hot spots partly overlap, and result makes the curve of light distribution on plane of illumination S unsmooth, and user may observe dazzle, aberration or the bright dark variation on plane of illumination S.
And when there is barrier B between Down lamp 1 and plane of illumination S, a plurality of LED 12 of transmitting different color light expose to barrier B, and produce shade on plane of illumination S.Due to a plurality of LED 12 separated be arranged in the diverse location place on the bottom of housing 11, therefore different LED12 can produce shade in the diverse location place on plane of illumination S.These dash areas are overlapping, and result as shown in Figure 1A, has formed multi shadow on plane of illumination S.This makes the illuminating effect of Down lamp 1 deteriorated.
As the scheme of head it off, a kind of lighting device that adopts scattering sheet has been proposed.Fig. 2 shows as the Down lamp 2 of an example that comprises the lighting device of spot light and scattering sheet.With reference to Fig. 2, Down lamp 2 comprises a plurality of LED 22 of the transmitting different color light on the bottom that has the housing 21 of bottom and side wall portion and be arranged in housing 21, and a plurality of LED 22 are to be disposed in around conglobate mode on the pcb board 23 on the bottom that is positioned at housing 21.Down lamp 2 also comprises the scattering sheet 24 that is positioned at light exit side.By scattering sheet 24 is set, mixed from the light of a plurality of LED 22 outgoing, improved the smoothness of the curve of light distribution of the light of Down lamp 2 outgoing.
Yet in the situation that using scattering sheet 24, the part from the light of a plurality of LED 22 outgoing is lost due to scattering sheet 24.And because scattering sheet 24 has thinner thickness, so its mixed light effect is limited.In addition, Down lamp 2 is also difficult to obtain narrower beam angle.
Therefore, expectation provides a kind of and has high luminous efficiency, can obtain the distribute lighting device of (can not produce multi shadow) of level and smooth output intensity.
Summary of the invention
Lighting device according to this technology embodiment, comprising: housing, comprises bottom and side wall portion; LGP, is arranged on the place, bottom of housing, and comprises side, first surface and the second surface relative with first surface, and second surface is than the bottom of the more close housing of first surface; And, a plurality of light sources, the side that is arranged on LGP is located, and to side-irradiation light, light is extremely outside from the first surface outgoing of LGP after propagating in LGP.
By LGP is set, according to the lighting device of this technology embodiment, can in the situation that light loss is very little, mix the light from a plurality of light sources.Like this, lighting device can keep high luminous efficiency, and can obtain level and smooth output intensity distribution, can not produce multi shadow.
Preferably, on the second surface of LGP, be formed with a plurality of convex-concave structure.
In the situation that be formed with a plurality of convex-concave structure on the second surface of LGP, can regulate the light mixing effect of LGP by setting the size, density, arrangement mode etc. of a plurality of convex-concave structure, thereby the output intensity that can obtain expectation distributes.
For example, preferably, a plurality of convex-concave structure can be designed as and make the first surface of LGP have the distribution of Gaussian output intensity.
In this case, lighting device has level and smooth output intensity and distributes (distribution of Gaussian output intensity), thereby although used a plurality of light sources to throw light on, also can avoid producing multi shadow, has therefore obtained excellent illuminating effect.
Preferably, the size of a plurality of convex-concave structure along with and the center of LGP between distance increase and reduce, or, the density of a plurality of convex-concave structure along with and the center of LGP between distance increase and reduce.
Thereby by regulating size, the density of convex-concave structure, the output intensity that can obtain expectation distributes.
Preferably, convex-concave structure can be point-like bulge-structure or pitting structure.
In this case, can form this convex-concave structure in mode simply, for example, can on the second surface of LGP, form this convex-concave structure by ink jet printing method or mechanical engraving method, or by injection moulding method or molded method, form this convex-concave structure with LGP.
Similarly, convex-concave structure can be designed as and makes the first surface of LGP have center than height or center distribute than low smoothed curve formula output intensity around around.
Further, according to design needs, convex-concave structure can be designed as the output intensity that makes the first surface of LGP have other types and distributes.
According to design needs, that LGP can have in top view is round-shaped, elliptical shape, rectangular shape or regular hexagon shape.
Preferably, a plurality of light sources are evenly distributed on LGP around.Preferably, a plurality of light sources comprise red-light source, blue light source and green-light source.Preferably, a plurality of light sources are the spot lights such as LED, laser diode.
Preferably, the bottom of housing and/or side wall portion have mirror-reflection function or diffuse reflection function.
In this case, can further improve the luminous efficiency of lighting device.
Accompanying drawing explanation
Figure 1A and Figure 1B are respectively cutaway view and the top views illustrating according to the lighting device of correlation technique example;
Fig. 2 is the figure illustrating according to another example of the lighting device of correlation technique;
Fig. 3 A and Fig. 3 B illustrate according to the cutaway view of the example of the lighting device of the embodiment of this technology and oblique view;
Fig. 4 A and Fig. 4 B illustrate according to the oblique view of the example of the LGP of the embodiment of this technology and top view;
Fig. 5 A is the schematic diagram illustrating according to the light path example of the lighting device of the embodiment of this technology, and Fig. 5 B is the schematic diagram illustrating according to the light path of the lighting device of correlation technique;
Fig. 6 is the optical simulation figure illustrating according to the light path example of the lighting device of the embodiment of this technology;
Fig. 7 is the optical simulation figure illustrating according to the Illumination Distribution example of the lighting device of the embodiment of this technology; And
Fig. 8 is the figure illustrating according to the output intensity distribution example of the lighting device of the embodiment of this technology.
The specific embodiment
In being discussed in more detail below, with reference to the accompanying drawing that forms the part of this description, some illustrative embodiments of this technology are described.It should be understood that and can use other embodiment, and can carry out various changes under the prerequisite of scope that does not deviate from this technology.So, describes in detail and should not be understood to the restrictive meaning below, and this technology is defined by the appended claims.
Fig. 3 A and Fig. 3 B have schematically shown the lighting device 3 according to the embodiment of this technology, and wherein, Fig. 3 A is the cutaway view of lighting device 3, and Fig. 3 B is the oblique view of lighting device 3.With reference to Fig. 3 A and Fig. 3 B, lighting device 3 comprises housing 31, a plurality of LED 32 and LGP 33.
A plurality of LED 32 are disposed on the bottom 311 of housing 31.A plurality of LED 32 can, by the same support member supports such as pcb board, also can be supported respectively by support component separately.A plurality of LED 32 comprise the LED that launches different color light, for example, comprise the LED of red-emitting, green glow and blue light.
LGP 33 is disposed on the bottom 311 of housing 31.In the present embodiment, LGP 33 has round-shaped in top view, and a plurality of LED 32 are arranged in LGP 33 around equably.In the situation that a plurality of LED 32 comprise the LED that launches different color light, the LED of transmitting different color light can be arranged in LGP 33 around with predefined procedure, for example, and with red-light LED, green light LED, blue-ray LED, red-light LED ... be disposed in order.
With reference to Fig. 4 A and Fig. 4 B, the lower surface of LGP 33 (surface in the bottom of housing 31 311 1 sides of LGP 33) is provided with a plurality of point-like bulge-structures 331.A plurality of point-like bulge-structures 331 are arranged on the lower surface of LGP 33 in Central Symmetry mode, and symmetrical centre is the center of circle of the lower surface of LGP 33.In the present embodiment, the size of a plurality of point-like bulge-structures 331 and density along with and the center of the lower surface of LGP 33 between distance increase and reduce.
A plurality of point-like bulge-structures 331 can be formed on the lower surface of LGP 33 by ink jet printing method or mechanical engraving method, or also can form by injection moulding method or molded method and LGP 33.
Fig. 5 A shows according to the light path example of the lighting device 3 of the embodiment of this technology, as a comparison, Fig. 5 B show shown in Fig. 1 according to the light path of the lighting device 1 of correlation technique.
With reference to Fig. 5 A, according in the lighting device 3 of present embodiment, by the light of a plurality of LED 32 transmittings, via the side of LGP 33, enter to inject LGP 33, afterwards, via the upper surface of LGP 33 and lower surface multiple total reflection and after fully being mixed, from the upper surface outgoing of LGP 33.The direct outgoing of a part in the light of outgoing is to the outside of lighting device 3, and after another part reflects on the inner surface of the side wall portion 312 of housing 31, outgoing is to outside.
On lower surface due to LGP 33, be provided with a plurality of point-like bulge-structures 331, so the light of LGP 33 inside is totally reflected at a plurality of point-like bulge-structures 331 places.And, because a plurality of point-like bulge-structures 331 are arranged with predetermined arrangement mode, therefore the light of LGP 33 inside stands different total reflections at the diverse location place of the lower surface of LGP 33, thereby at the upper surface place of LGP 33, has obtained the light distribution of expectation.
In the present embodiment, due to the size of a plurality of point-like bulge-structures 331 and density along with and the center of the lower surface of LGP 33 between the increase of distance reduce, therefore in the center of the upper surface of LGP 33, obtained largest light intensity, and obtained minimum intensity of light near the edge of the upper surface of LGP 33.And therefore, because size and the density of a plurality of point-like bulge-structures 331 reduces gradually, between near the center of the upper surface of LGP 33 and edge, obtained the curve of light distribution seamlessly transitting.
And in the lighting device 1 of correlation technique, with reference to Fig. 5 B, a plurality of LED 12 emit light into the outside of lighting device 1 individually, the diverse location place of each LED 12 on plane of illumination forms hot spot, and these hot spots partly overlap each other, as a result, cause the light distribution on plane of illumination not there is the curve seamlessly transitting.
Fig. 6 shows according to the optical simulation figure of the light path example of the lighting device 3 of the embodiment of this technology.Fig. 7 shows according to the optical simulation figure of the Illumination Distribution example of the lighting device 3 of the embodiment of this technology.
With reference to Fig. 6 and Fig. 7, in the present embodiment, on the upper surface of LGP 33, obtained Gaussian output intensity and distributed.Particularly, as shown in Figure 7, in the center of the upper surface of LGP 33, obtained the maximal illumination of about 2000Lux, along with the increase of the distance with center, illumination gradually (smoothly) reduce, near the edge of the upper surface of LGP 33, reach the minimum of a value of about 200Lux.
Therefore, according to the lighting device 3 of present embodiment, can in the high luminous efficiency of maintenance, obtain level and smooth output intensity and distribute, avoid the appearance of multi shadow.And the mixed light effect due to LGP 33, has reduced the appearance of dazzle.
According in the lighting device 3 of present embodiment, when a plurality of LED 32 comprise the LED that launches different color light, the mixed light effect by LGP 33, can obtain good color blending effect.
A plurality of LED 32 of usining are above illustrated as the example of light source, but this technology is not limited to this.According to the lighting device of this technology, other forms of light source can be comprised, for example, the spot light such as laser diode can be comprised, or line source or area source, as long as the light of its transmitting can be imported the side of LGP 33 effectively.
Wherein, a plurality of LED 32 are the illuminated LED of side, yet this technology is not limited to this.According in the lighting device of this technology, also can use the illuminated light source of end face, as long as the guiding device of setting such as speculum, prism is effectively to import LGP by the light of its transmitting in its light-emitting area.
A plurality of point-like bulge-structures 331 of usining are above illustrated as the example of a plurality of convex-concave structure on the lower surface of LGP 33, but this technology is not limited to this.According in the lighting device of this technology, a plurality of pitting structures can be set on the lower surface of LGP, so also can reach same effect.A plurality of convex-concave structure neither have rounded bottom surface by point-like bulge-structure 331 as shown in Figure 4 B like that, and alternatively, it can have oval bottom surface, triangle bottom surface, rhombus bottom surface etc.In addition, according in the lighting device of this technology, a plurality of convex-concave structure neither form point-like as shown in Figure 4 B like that, and it can have such as radiation wire and the wire of zigzag shape, the concentric shapes such as wave-like.
In the above-described embodiment, size, density, the arrangement mode of a plurality of point-like bulge-structures 331 on the lower surface of LGP 33 is designed so that the first surface of LGP 33 has Gaussian output intensity and distributes, yet this technology is not limited to this.For example, according in the lighting device of this technology, a plurality of convex-concave structure on the lower surface of LGP can be designed as and make the upper surface of LGP have center to distribute than low around smoothed curve formula output intensity than around height or center, or, there are other expectation output intensities and distribute.
Fig. 8 shows three examples that distribute according to the output intensity of the lighting device of the embodiment of this technology.As shown in Figure 8, in figure (a), the center that obtained distributes than high around output intensity.In figure (b), the center that obtained distributes than low around output intensity.And, in figure (a) and figure (b), output intensity distribution from center to around seamlessly transit.In figure (c), obtained output intensity completely uniformly and distributed.In addition, according to design needs, the various parameters such as size, density, arrangement mode of a plurality of convex-concave structure can be suitably set, to obtain the output intensity of expectation, distribute.
The LGP 33 of take above has and is round-shapedly illustrated as example in top view, but this technology is not limited to this.For example, LGP can also have elliptical shape, rectangular shape or regular hexagon shape in top view, and this can need to come suitably to set according to design.
It should be understood that the feature of different exemplary embodiment described herein can be bonded to each other if do not have other dated especially.
In addition, although only with respect to a kind of special characteristic or the aspect that discloses embodiments of the invention in numerous embodiments, but as any given or application-specific is desired, combination can be carried out with one or more further features or the aspect of other embodiment in these features or aspect.
Although this illustrate and described specific embodiment, it will be appreciated by one skilled in the art that and do not deviating under the prerequisite of scope of the present invention, various embodiments optional and/or that be equal to can replace the specific embodiment describing and illustrate.The application is intended to cover any modification or the distortion of specific embodiment discussed herein.So the present invention is intended to only be limited by claim and equivalent thereof.
Reference number
1,2,3 lighting devices
11,21,31 housings
12、22、32 LED
311 bottoms
312 side wall portions
33 LGPs
331 point-like bulge-structures
Claims (13)
1. a lighting device (3), comprising:
Housing (31), comprises bottom (311) and side wall portion (312);
LGP (33), the bottom (311) that is arranged on described housing (31) is located, and comprise side, first surface and the second surface relative with described first surface, described second surface is than the bottom (311) of the more close described housing of described first surface (31); And
A plurality of light sources (32), the side that is arranged on described LGP (33) is located, and to described side-irradiation light, described light is extremely outside from the first surface outgoing of described LGP (33) after propagating in described LGP (33).
2. lighting device according to claim 1 (3), wherein,
On the second surface of described LGP (33), be formed with a plurality of convex-concave structure.
3. lighting device according to claim 2 (3), wherein,
Described a plurality of convex-concave structure is designed so that the first surface of described LGP (33) has Gaussian output intensity and distributes.
4. according to the lighting device described in claim 2 or 3 (3), wherein,
The size of described a plurality of convex-concave structure along with and the center of the second surface of described LGP (33) between distance increase and reduce.
5. according to the lighting device described in claim 2 or 3 (3), wherein,
The density of described a plurality of convex-concave structure along with and the center of the second surface of described LGP (33) between distance increase and reduce.
6. according to the lighting device described in claim 2 or 3 (3), wherein,
Described convex-concave structure is point-like bulge-structure (331) or pitting structure.
7. lighting device according to claim 2 (3), wherein,
Described a plurality of convex-concave structure is designed so that the first surface of described LGP (33) has center than height or center distribute than low smoothed curve formula output intensity around around.
8. according to the lighting device described in any one in claims 1 to 3 (3), wherein,
That described LGP (33) has in top view is round-shaped, elliptical shape, rectangular shape or regular hexagon shape.
9. according to the lighting device described in any one in claims 1 to 3 (3), wherein,
Described a plurality of light source (32) is evenly arranged in described LGP around.
10. according to the lighting device described in any one in claims 1 to 3 (3), wherein,
Described a plurality of light source (32) comprises red-light source, blue light source and green-light source.
11. according to the lighting device described in any one in claims 1 to 3 (3), wherein,
Described a plurality of light source (32) is LED or laser diode.
12. according to the lighting device described in any one in claims 1 to 3 (3), wherein,
Bottom (311) and/or the side wall portion (312) of described housing (31) have mirror-reflection function or diffuse reflection function.
13. 1 kinds of Down lamps, comprise according to the lighting device described in any one in claim 1 to 12 (3).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326706.8A CN103672451B (en) | 2012-09-05 | 2012-09-05 | Lighting device |
| PCT/EP2013/067331 WO2014037218A1 (en) | 2012-09-05 | 2013-08-20 | Illumination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210326706.8A CN103672451B (en) | 2012-09-05 | 2012-09-05 | Lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103672451A true CN103672451A (en) | 2014-03-26 |
| CN103672451B CN103672451B (en) | 2017-09-08 |
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ID=49000948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210326706.8A Active CN103672451B (en) | 2012-09-05 | 2012-09-05 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103672451B (en) |
| WO (1) | WO2014037218A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180268A (en) * | 2014-08-29 | 2014-12-03 | 长城汽车股份有限公司 | Car lamp |
| CN108224243A (en) * | 2018-01-23 | 2018-06-29 | 福州丹诺西诚电子科技有限公司 | A kind of downlight |
| CN110431345A (en) * | 2016-12-13 | 2019-11-08 | 亮锐有限责任公司 | LED based lamps and lanterns |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6540373B2 (en) * | 2001-03-29 | 2003-04-01 | Bendrix L. Bailey | Lighting system |
| TWM329739U (en) * | 2007-11-01 | 2008-04-01 | Kun Dian Photoelectric Entpr Co | LED lamp and lantern structure with the umbrella shaped light-guiding plates to increase LED reflex |
| US7954975B2 (en) * | 2009-04-03 | 2011-06-07 | Mig Technology Inc. | Refraction-type led ceiling lamp |
| CN201885106U (en) * | 2010-09-21 | 2011-06-29 | 袁汝平 | Ultrathin energy-saving LED (light-emitting diode) ceiling lamp |
| CN201876564U (en) * | 2010-10-11 | 2011-06-22 | 锦湖光电(深圳)有限公司 | Backlight light guide membrane structure for palmtop |
| TWM434165U (en) * | 2011-11-23 | 2012-07-21 | Enlight Corp | Light emitting diode (LED) lamp |
-
2012
- 2012-09-05 CN CN201210326706.8A patent/CN103672451B/en active Active
-
2013
- 2013-08-20 WO PCT/EP2013/067331 patent/WO2014037218A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104180268A (en) * | 2014-08-29 | 2014-12-03 | 长城汽车股份有限公司 | Car lamp |
| CN110431345A (en) * | 2016-12-13 | 2019-11-08 | 亮锐有限责任公司 | LED based lamps and lanterns |
| US10976481B2 (en) | 2016-12-13 | 2021-04-13 | Lumileds Llc | LED-based light fixture |
| CN108224243A (en) * | 2018-01-23 | 2018-06-29 | 福州丹诺西诚电子科技有限公司 | A kind of downlight |
| CN108224243B (en) * | 2018-01-23 | 2023-12-15 | 福州丹诺西诚电子科技有限公司 | Tube lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014037218A1 (en) | 2014-03-13 |
| CN103672451B (en) | 2017-09-08 |
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