CN101498427B - Uniform light emitting device - Google Patents
Uniform light emitting device Download PDFInfo
- Publication number
- CN101498427B CN101498427B CN2008100050217A CN200810005021A CN101498427B CN 101498427 B CN101498427 B CN 101498427B CN 2008100050217 A CN2008100050217 A CN 2008100050217A CN 200810005021 A CN200810005021 A CN 200810005021A CN 101498427 B CN101498427 B CN 101498427B
- Authority
- CN
- China
- Prior art keywords
- light
- light emitting
- reflector
- emitting diode
- emitting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010410 layer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- -1 polyethylene terephthalate Polymers 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 2
- 230000017525 heat dissipation Effects 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 6
- 230000003760 hair shine Effects 0.000 abstract 1
- 238000007639 printing Methods 0.000 description 29
- 239000003973 paint Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 229910052754 neon Inorganic materials 0.000 description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
- Planar Illumination Modules (AREA)
Abstract
本发明提供一种均匀发光装置，包括发光二极管和反光罩，该发光二极管为单面发光式发光二极管，该反光罩为漫反射反光罩。至少三个所述单面发光式发光二极管于反光罩内依照反光罩形状排列成一圈，并且其发光面朝向圈外、面对反光罩。单面发光式发光二极管依所需的方向，调整其向位，以适当的距离和入射角照射反光罩，从而调整反光罩上相应的被照区域的光照度，进而使反光罩的整个侧壁受光更加均匀。同时，选择发光二极管对应的颜色，并控制各种二极管的发光强度，即可混合出所需的任何光色。此外，采用漫反射反光罩后，发光二极管所发出的光线照射在漫反射罩表面的充分散射后，全部照向透光屏，光能利用率高。
The present invention provides a uniform light emitting device, comprising a light emitting diode and a reflector, wherein the light emitting diode is a single-sided light emitting diode, and the reflector is a diffuse reflection reflector. At least three of the single-sided light emitting diodes are arranged in a circle in the reflector according to the shape of the reflector, and the light emitting surfaces thereof face the outside of the circle and face the reflector. The single-sided light emitting diode adjusts its orientation according to the required direction, and irradiates the reflector at an appropriate distance and incident angle, thereby adjusting the illumination of the corresponding illuminated area on the reflector, and further making the entire side wall of the reflector receive light more uniformly. At the same time, by selecting the color corresponding to the light emitting diode and controlling the luminous intensity of various diodes, any desired light color can be mixed. In addition, after adopting the diffuse reflection reflector, the light emitted by the light emitting diode is fully scattered on the surface of the diffuse reflection cover, and then all shines on the light-transmitting screen, so that the light energy utilization rate is high.
Description
Technical field
The invention belongs to a kind of light-emitting device, relate in particular to a kind of uniform illuminating device that uses light emitting diode as light source.
Background technology
Illuminator can attract people's notice, and businessman's signboard lamp house commonly used attracts client or does advertisement, architect and design teacher especially in view of the above theory design illuminated ceiling, illuminated metope and the illuminated outer facade of building etc.The basic structure of this type of luminescent system is at the translucent printing opacity screen of light source installed in front, to let light see through the printing opacity screen, builds a kind of atmosphere of elegance, or image or the information on the printing opacity screen is passed to people.
Above-mentioned luminescent system uses incandescent lamp usually, and fluorescent lamp or neon light etc. are as light source.As everyone knows, some luminous efficiency of these light sources is low, and power consumption is big, and some service life is short, and neon light etc. then need be operated under the high voltage, and security incident very easily takes place.
Along with the progress of science and technology, invented out LED for illumination in recent years, as a kind of new type light source, its luminous efficiency is high, power consumption is low, the life-span is long, operating voltage is low.United States Patent (USP) proposes a kind of signboard lamp house system for No. 6964507 for this reason, and the structure of its light-emitting device is that a light emitting diode is installed in hollow terrace with edge shape reflection shield; This light emitting diode is roughly the double cone shape.One end is a base, is installed on the reflection shield, and the other end is can irradiant concave surface, the translucent printing opacity screen towards reflection shield open side the place ahead.For the irradiate light printing opacity screen of avoiding light-emitting diodes tube end concave surface to be sent forms bright hot spot on screen; The technical scheme of this case is included between translucent printing opacity screen and the light-emitting diodes tube end concave surface and installs a non transparent layer additional, particularly directly is coated in the skin of paint on this concave surface.
The shortcoming of above-mentioned signboard lamp house system is; A light emitting diode only is installed in reflection shield; Its power is bigger, for erose diffuser, because the direction of illumination of light emitting diode is fixed; Dark angle can appear in the sidewall of diffuser, and light can't be radiated at each corner of diffuser sidewall equably.And this non transparent layer is blocked the part light that light emitting diode sends, and reduces the luminous efficiency of light emitting diode, causes luminous flux to reduce energy dissipation; As for the skin of paint that directly is coated on the concave surface, not only have above-mentioned shortcoming especially, and influence LED heat radiating, especially will force light to return in the light emitting diode, cause luminous diode temperature to raise, shorten service life.
In addition, the light that light emitting diode sent causes the light-emitting device in the signboard lamp house system that uniform illumination can not be provided, thereby has a strong impact on the effect of whole system through on the printing opacity screen, forming the bright ring of light after the reflection shield reflection.Although mention in this case specification the reflection shield inner surface is coated with white paint, however the fact show, still have the ring of light on the printing opacity screen with this understanding, only be degree different and with.
Summary of the invention
The technical problem that the present invention will solve is, a kind of more even light emission, uniform illuminating device efficiently are provided.
In order to solve the problems of the technologies described above; The present invention provides a kind of uniform illuminating device, comprises light emitting diode and reflection shield, and this light emitting diode is the single face type light emitting diode; This reflection shield is the diffuse reflection reflection shield, and the inner surface diffuse reflectance of said reflection shield is greater than 0.85.At least three said single face type light emitting diodes are arranged in a circle according to the reflection shield shape in reflection shield; And its light-emitting area is outside circle, in the face of reflection shield, and the center divides the Xiang Weike adjustment of light emitting diode to make it shine the sidewall at the seamed edge place of said reflection shield.
Said uniform illuminating device also comprises circuit board, and the illuminated diode of said single face is installed in the front of circuit board;
Be coated with protective layer on said circuit board and the light emitting diode;
The dead ahead of said uniform illuminating device is provided with translucent printing opacity screen, and the distance between said translucent printing opacity screen and circuit board is less than 50.8mm.
Uniform illuminating device of the present invention compared with prior art has following beneficial effect:
1, uniform illuminating device uses at least three single face type light emitting diodes, according to the shape of reflection shield the positional alignment of each light emitting diode is become a circle, makes it respectively according to required direction the sidewall of uniform irradiation reflection shield.Adopt that a plurality of light emitting diodes substitute that a large-power light-emitting diodes can also the adjustment member light emitting diode to the position; Make it with suitable distance and incidence angle irradiation reflection shield; Thereby the illuminance in corresponding area to be illuminated territory on the adjustment reflection shield, and then make the whole sidewall of reflection shield receive light more even.Select the corresponding color of light emitting diode simultaneously, and control the luminous intensity of various diodes, can blend required any photochromic.
2, behind the employing diffuse reflection reflection shield, the irradiate light that light emitting diode sent is after the abundant scattering on diffuse(d) reflector surface, and all according to shielding to printing opacity, the efficiency of light energy utilization is high.Light has been avoided on the printing opacity screen, producing the ring of light or hot spot phenomenon after scattering simultaneously.
Description of drawings
Fig. 1 is the schematic perspective view of uniform illuminating device first embodiment of the present invention;
Fig. 2 be among Fig. 1 circuit board look up schematic perspective view;
Fig. 3 is the schematic perspective view of the illuminated diode of single face among Fig. 1;
Fig. 4 is vertical cross-sectional schematic of uniform illuminating device first embodiment of the present invention;
Fig. 5 is vertical cross-sectional schematic of uniform illuminating device second embodiment of the present invention;
Fig. 6 is the schematic perspective view after a plurality of uniform illuminating devices are installed on signboard lamp house;
Fig. 7 is the cross-sectional schematic along K-K line among Fig. 6.
The specific embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention will be solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Before describing the specific embodiment of the invention in detail, must be pointed out at this: " light emitting diode " used in the present invention speech not only comprises and sends visible light (wavelength 380nm to 780nm), and comprises and send infrared ray or ultraviolet light emitting diode.
As shown in Figure 1, the uniform illuminating device 100 that the embodiment of the invention provides comprises one group of light emitting diode 300, circuit board 400 and reflection shield 500.As main points of the present invention, wherein light emitting diode 300 is the single face type light emitting diode, and their shapes according to reflection shield 500 in reflection shield 500 are arranged in a circle, and 350 (see figure 3)s of light-emitting area separately are outside circle, in the face of reflection shield 500.
Single face type light emitting diode 300 is installed in the front of circuit board 400 respectively, and mode can be welding or uses thermal conductance epoxy resin gluing etc.For the heat that light emitting diode 300 is produced distributes better, can in circuit board 400, metal level be set, such as aluminium lamination, and make it to constitute the heat conduction with single face type light emitting diode 300; Perhaps, can add the external heat sink of other forms or shape, to promote radiating effect.As shown in Figure 2, the back side of circuit board 400 is provided with control circuit 450, is used for regulating or control input current or voltage, so that each single face type light emitting diode 300 is realized functions such as light on and off simultaneously, light on and off successively, intermittently light on and off, flicker, deepening.Control circuit 450 can be with each single face type light emitting diode 300 serial or parallel connection (condition be that external power source can provide enough voltage or electric currents), so that the luminous situation of light emitting diode 300 is controlled or control individually jointly.
As shown in Figure 3, each single face type light emitting diode 300 has light-emitting area 350 and pair of pins 380.Pin 380 is used to provide being electrically connected between the p-n junction (not shown)s in power supply and the light emitting diode 300.After adding suitable voltage, light-emitting area 350 can be sent radial light beam; Be noted that; This light beam (plane, X-Y axle place in like Fig. 3) angle of departure on the plane that is parallel to light emitting diode 300 bottom surfaces is 120 °; Therefore three single face type light emitting diodes 300 of the minimum employing of the present invention and make it suitably to form a circle can be around 360 ° of ground irradiations of Z-Z axle reflection shield 500.
These type of 300 the presents of single face type light emitting diode have been widely used in occasion backlight; And finding has the SWTS1007 series of SSC company (Seoul Semi-Conductor) and the LW Y1SG series of Ao Silamu optical semiconductor company (OSRAM Opto Semi-conductor) on the market; Its distinguishing feature is that energy consumption is low; About about 0.125W, thereby caloric value is less, and the inner additional optics of minute surface, reflector, refractile body, lens and so on that do not contain.
As a kind of preferred embodiment of the present invention, light emitting diode 300 can send white light, with x=0.33, is advisable near the y=0.33 in the photochromic coordinate in CIE (International Commission on Illumination) 1931 standard colorimetric systems.Under the situation that emits white light, can use generations such as colour filter that coloured light is arranged.When a certain specific when photochromic in the needs CIE1931 standard colorimetric system, can select for use and send the monochromatic light emitting diode 300 of respective wavelength.Perhaps through a plurality of monochromatic light emitting diodes 300 of different wave length that send are carried out luminous intensity adjustment, and blend required photochromic.Preferably make each single face type light emitting diode 300 send ruddiness, green glow, blue light respectively, carry out luminous intensity adjustment, and blend required photochromic through control circuit 450.
Please referring to Fig. 4, as another main points of the present invention, reflection shield 500 is the diffuse reflection reflection shield, and its shape and position are that all light 50 that can impel Light-Emitting Diode 300 to be sent totally reflect along the Z-Z axle, become diffuse reflection light beam 55.The representative value of the inner surface diffuse reflectance of reflection shield 500 is more than 0.85.This type of reflection shield finding has the anodized aluminum product of my Nuo De company (Alanod) of Germany, and the product of Furukawa Electric Co., Ltd (FurukawaElectric Company Limited).For example, and the PETG of Furukawa company (polyethylene terephthalate, PET) froth pulp---foaming PETG (MCPET), its diffuse reflectance is greater than 0.95, and total reflectance is 0.98.All metals or nonmetal reflection shield, all inner surface diffuse reflectances all can be used as reflection shield 500 greater than 0.85.
The inner surface diffuse reflectance of reflection shield 500 can be guaranteed youth uncle reflection greater than 0.85.Under youth uncle conditioned reflex, be radiated at the abundant scattering of light on diffuse reflector surface, no matter observer's visual angle is how, this surperficial brightness is all identical for the observer.With the technical standpoint of specialty more, no matter promptly the visual angle how, this surperficial brightness is all identical.This phenomenon also is called youth uncle cosine law sometimes.
Can obviously find out by Fig. 4 simultaneously; The present invention adopts three above single face type light emitting diodes 300 to use in groups; For identical total energy consumption (such as 1 watt), low power LED (such as 0.125 watt) then can adopt the light emitting diode 300 (is 1: 8 ratio for 1 watt) of greater number.In other words, adopt a plurality of low power LEDs 300 to substitute large-power light-emitting diodes and mean, thereby on bigger degree, precondition is provided for uniform irradiation reflection shield 500 to the rearranging of light flux distribution situation.
Particularly, adopt a plurality of light emitting diodes 300 to form a circle, light-emitting area 350 is outside circle; Making can be according to the shape of cross section of diffuser 500; Rationally arrange the position of each light emitting diode 300, make it respectively according to required direction the sidewall of uniform irradiation reflection shield 500.Be foursquare reflection shield 500 for cross section shown in Figure 1 for example, light emitting diode 300 can surround square cast accordingly, makes each sidewall of reflection shield 500 receive light more equably.
Adopt that a plurality of light emitting diodes 300 substitute that high-power persons can also adjustment member light emitting diode 300 to the position, make it to shine reflection shield 500 with suitable distance and incidence angle.Know by optical theory, can adjust the illuminance in corresponding area to be illuminated territory on the reflection shield 500 like this, and then make the whole sidewall of reflection shield 500 receive light equably.For example surround the situation of square cast for above-mentioned light emitting diode 300; Promptly can further be directed against the sidewall sections at 500 4 seamed edge places of reflection shield; The light emitting diode 300 that aligns four jiaos of places of square cast carries out adjusting to the position; Make it to shine the sidewall at above-mentioned seamed edge place, make the illuminance at this place consistent as far as possible, thereby guarantee that whole sidewall receives light more equably with the elsewhere with suitable distance and incidence angle.
In addition, adopt a plurality of light emitting diodes 300 to form a circle, the more feasible spacing that can adjust 300 of light emitting diodes impels the whole sidewall of reflection shield 500 evenly to receive light to the full extent.Like this, no matter which kind of shape the shape of cross section of diffuser 500 is, even concave shaped such as crescent, its sidewall all can reach and evenly receive light state, and dark angle can not occur.
Evenly receive at reflection shield 500 sidewalls under the situation of light and youth uncle reflection, can guarantee to be parallel on the illuminated plane of X-Y plane (Fig. 1) has quasi-homogeneous surface brightness.For example when two or above reflection shield 500 side by side the time, blackening (dark area or boundary line) comes across reflection shield 500 peripheries often.This situation evenly receives can avoid under light and the youth uncle conditioned reflex at reflection shield 500 sidewalls.In the signboard industry, the uniformity often is defined as luminance difference or the contrast between zones of different on the same plane of being paid close attention to.With the technical standpoint opinion, the uniformity promptly is regarded as evenly greater than 0.85.
See also Fig. 6, the uniform illuminating device 100 of a plurality of embodiment of the invention is arranged in this signboard lamp house 600, this lamp box 600 comprises casing 65 and printing opacity screen 68, casing 65 each uniform illuminating device 100 of supporting wherein, and printing opacity screen 68 covers the front side of lamp box 600.Printing opacity screen 68 is translucent, and most of light that reflection shield 500 is reflected is able to appear.In most of occasions, printing opacity screen 68 serves as a kind of diffuser, makes light diffusion, so that see through the output light of printing opacity screen 68 shape that is evenly distributed.
See also Fig. 7, light emitting diode 300 is in apart from printing opacity with circuit board 400 and shields 68 a certain distances, 62 places, to let whole printing opacity screen 68 be able to illuminated by the light that is reflected in the uniform illuminating device 100.For avoiding speck (bright areas) and blackening (dark area) occurring on the printing opacity screen 68, should keep empty spacious between circuit board 400 and the printing opacity screen 68, must not be occupied by any other reflector, reflective mirror, lens or reflective skin of paint and so on optical equipment.Only can use protective layer 63 (Fig. 5) to cover and holding circuit plate 400 and luminous two pipes 300, to avoid receiving mechanicalness or damage of electric property and interference, electric short circuit for example, electromagnetic interference, moisture etc.In preferred embodiment, the distance 62 that printing opacity screen 68 and circuit board are 400 is less than 2 inches (50.8mm).
Compare to 8 inches thicker sizes such as (203.2mm) of prior art; Above-mentioned distance 62 is significant less than 2 inches; The uniform illuminating device 100 that is the embodiment of the invention is applied to lamp box and illuminated metope; During illuminated ceiling and so on luminescent system, the thickness that can make this type systematic is attenuate greatly.Lamp box is thin, makes outstanding building structure metope take public place, also is prone to by government permission; The metope luminescent system is thin, and taking careat must lack; The ceiling luminescent system is thin, then can avoid with ceiling in other imbed conflicts mutually such as thing such as air-conditioning pipe, fire extinguishing spray thrower, public communication system.System is both thin, and weight is from light, can take in concurrently light and handy just.Above-mentioned distance 62 is actually because light-emitting device of the present invention 100 is luminous even less than 2 inches (50.8mm), but due to the uniform irradiation printing opacity screen 68.
In another embodiment, printing opacity screen 68 can be made into refractive body, and casing 65 then is translucent.Again return casing 65 after being changed direction by the light after the diffusion by refractive body.
As other examples of the present invention, what the illuminated diode 300 of single face sent also can be ultraviolet ray, and printing opacity screen 68 can be used the uniform light of reflection shield 500 reflections instead to casing 65 at this moment; Or should scribble embedded photoluminescent material on the printing opacity screen 68, and such as fluorescence or phosphor material, evenly exciting through ultraviolet ray, embedded photoluminescent material can appear uniform light at casing 65; Or what the illuminated diode 300 of single face sent is infrared ray, makes the present invention that uniform night vision illumination can be provided.
Instance
The experiment structure is painted with Fig. 1,12 single face type light emitting diodes 300 (0.125 watt of every tube power adopts the SSC SWTS1007 of company series of products) is welded on become diameter 30mm ring on the circuit board 400.All light-emitting areas 350 of light emitting diode 300 are all in the face of reflection shield 500, and reflection shield 500 is processed by Furukawa company foaming PETG.Be added in electric current on the circuit board 400 and be 0.135 peace doubly.Reflection shield 500 inside dimensions are 900mm * 900mm.
Placing on the reflection shield 500 is diffuse transmission printing opacity screen 68, adopts the Shinkolite-A of Mitsubishi Rayon Co., Ltd (Mitsubishi Rayon Co.Ltd.) series #432 model, and its thickness is 3mm, and material is an acrylic resin.Distance 62 is through being measured as 35mm between printing opacity screen 68 and the circuit board 400.
Brightness on the printing opacity screen 68, through locating to measure as follows at three vertical 9 of three transverse directions:
| 874 | 1071 | 907 |
| 1024 | 960 | 1038 |
| 860 | 1012 | 890 |
The average light brightness and the uniformity (minimum light brightness/average light brightness) are respectively 956cd/m2 and 0.9 through calculating.Test data shows that this uniform illuminating device efficient is high, luminous evenly.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100050217A CN101498427B (en) | 2008-01-29 | 2008-01-29 | Uniform light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100050217A CN101498427B (en) | 2008-01-29 | 2008-01-29 | Uniform light emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101498427A CN101498427A (en) | 2009-08-05 |
| CN101498427B true CN101498427B (en) | 2012-07-25 |
Family
ID=40945623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100050217A Expired - Fee Related CN101498427B (en) | 2008-01-29 | 2008-01-29 | Uniform light emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101498427B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466201B (en) * | 2010-11-16 | 2014-03-12 | 海洋王照明科技股份有限公司 | Lamp reflector and portable lamp |
| JP2014002267A (en) * | 2012-06-18 | 2014-01-09 | Furukawa Electric Co Ltd:The | Foam sheet, light reflection plate using the same, and backlight panel |
| JP7002235B2 (en) * | 2017-07-06 | 2022-02-04 | 株式会社小糸製作所 | Lens with extended reflective surface |
| CN108730920B (en) * | 2018-04-19 | 2021-06-25 | 张�浩 | Illumination optical system with asymmetric light distribution |
| CN110279401B (en) * | 2019-07-26 | 2025-02-11 | 福建中医药大学 | Facial diagnosis and tongue diagnosis collection cabin |
| CN110715223B (en) * | 2019-10-14 | 2021-01-01 | 深圳市维业装饰集团股份有限公司 | Intelligent luminous ceiling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2618049Y (en) * | 2003-06-11 | 2004-05-26 | 桐乡市生辉照明电器有限公司 | LED cup light |
| JP2005306189A (en) * | 2004-04-21 | 2005-11-04 | Kojima Press Co Ltd | Light source unit and lighting device |
| CN1746556A (en) * | 2004-09-06 | 2006-03-15 | 甄钊伟 | Light holder with multi-wire input |
| CN2802258Y (en) * | 2005-05-27 | 2006-08-02 | 张宇 | Multiple light path synthetic semiconductor light-projector |
| CN1837926A (en) * | 2006-04-20 | 2006-09-27 | 友达光电股份有限公司 | Heat dissipation structure of backlight module |
| KR100713226B1 (en) * | 2005-10-28 | 2007-05-02 | 한국에너지기술연구원 | Structure of LED Lamp Combining Multiple LEDs |
| CN2916345Y (en) * | 2006-06-23 | 2007-06-27 | 揭衍旺 | Fire-fighting emergency illuminating light cap |
-
2008
- 2008-01-29 CN CN2008100050217A patent/CN101498427B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2618049Y (en) * | 2003-06-11 | 2004-05-26 | 桐乡市生辉照明电器有限公司 | LED cup light |
| JP2005306189A (en) * | 2004-04-21 | 2005-11-04 | Kojima Press Co Ltd | Light source unit and lighting device |
| CN1746556A (en) * | 2004-09-06 | 2006-03-15 | 甄钊伟 | Light holder with multi-wire input |
| CN2802258Y (en) * | 2005-05-27 | 2006-08-02 | 张宇 | Multiple light path synthetic semiconductor light-projector |
| KR100713226B1 (en) * | 2005-10-28 | 2007-05-02 | 한국에너지기술연구원 | Structure of LED Lamp Combining Multiple LEDs |
| CN1837926A (en) * | 2006-04-20 | 2006-09-27 | 友达光电股份有限公司 | Heat dissipation structure of backlight module |
| CN2916345Y (en) * | 2006-06-23 | 2007-06-27 | 揭衍旺 | Fire-fighting emergency illuminating light cap |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005306189A 2005.11.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101498427A (en) | 2009-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101310142B (en) | Lamp assembly | |
| US9587790B2 (en) | Remote lumiphor solid state lighting devices with enhanced light extraction | |
| CN100510518C (en) | Lighting unit and lighting apparatus | |
| US20150309248A1 (en) | Led-based lighting devices and systems based on light panels having transparent waveguides | |
| US20130194820A1 (en) | Reduced contrast led lighting system | |
| CN101498427B (en) | Uniform light emitting device | |
| TWI449862B (en) | Planar led lighting | |
| JP2013545254A (en) | Troffer optical assembly | |
| CN103201557A (en) | Troffer-style fixture | |
| JP4902630B2 (en) | Light guide type lighting fixture | |
| JPWO2007032187A1 (en) | LED illumination light source and LED stand that automatically turns on at power failure | |
| US9857053B2 (en) | Solid-state lighting luminaire with a uniform illumination output | |
| US20110096565A1 (en) | Light source apparatus | |
| TW201331510A (en) | Planar LED lighting | |
| CN103562624B (en) | LED-based lighting fixture with textured lens | |
| JP3211553U (en) | Lighting device | |
| EP3135983B1 (en) | Solar spectrum type led eye-protection flat lamp | |
| US11035527B1 (en) | Troffer light fixture | |
| US7695159B2 (en) | Apparatus and method for illuminating articles of jewelry | |
| US20190211975A1 (en) | Bulbs with indirect illumination | |
| US20120286306A1 (en) | Diffusely radiating led light system | |
| CN104659195B (en) | A kind of reflection white-light LED/light source | |
| KR100971989B1 (en) | Flat panel lighting equipment | |
| CN104728619B (en) | A kind of Reflecting surface LED illuminating lamp | |
| CN102235586A (en) | LED bulbs for wide angle lighting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20130129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |