CN101806430A - High-color rendering white-light LED - Google Patents
High-color rendering white-light LED Download PDFInfo
- Publication number
- CN101806430A CN101806430A CN200910111041A CN200910111041A CN101806430A CN 101806430 A CN101806430 A CN 101806430A CN 200910111041 A CN200910111041 A CN 200910111041A CN 200910111041 A CN200910111041 A CN 200910111041A CN 101806430 A CN101806430 A CN 101806430A
- Authority
- CN
- China
- Prior art keywords
- powder
- blue
- fluorescent powder
- light led
- color rendering
- 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.)
- Pending
Links
- 0 *[C@@](CO)[C@@](C=C)N=O Chemical compound *[C@@](CO)[C@@](C=C)N=O 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Led Device Packages (AREA)
Abstract
The invention relates to a high-color rendering and high-luminous efficacy white-light LED in the full-color temperature range of 2700-13000 K, comprising a blue-light LED chip and a fluorescent powder layer coated on the blue-light LED chip, wherein the excitation wavelength range of the blue-light LED chip is 445-465 nm. The high-color rendering and high-luminous efficacy white-light LED is characterized in that the fluorescent powder layer comprises green fluorescent powder, yellow fluorescent powder and red fluorescent powder, wherein the green fluorescent powder is excited to generate green light by the blue-light LED chip, and the emission wavelength of the green fluorescent powder is 495-535 nm; the yellow fluorescent powder is excited to generate yellow light by the blue-light LED chip, and the emission wavelength of the yellow fluorescent powder is 540-570 nm; the red fluorescent powder is excited to generate red light by the blue-light LED chip, and the emission wavelength of the red fluorescent powder is 630-650 nm. The invention can realize possible spectrum continuity in the spectral region of 380-780 nm of visible light so as to realize the high color rendering in the full-color temperature range of 2700-13000 K, and has obvious economic benefits.
Description
[technical field]
The present invention relates to a kind of white light LEDs, particularly a kind of white light LEDs of the high light efficiency of high-color rendering in the panchromatic temperature scope of 2700-13000K.
[background technology]
White light LEDs is as semiconductor illuminating light source, and owing to it has energy-saving and environmental protection, volume is little, plurality of advantages such as life-span length are subjected to whole world user's favor, have obtained in recent years developing rapidly.But white light LEDs will really enter the general lighting field and substitute conventional light source, solves except needs the problems such as high light efficiency, Gao Guangtong, low price, also needs to solve the high-color rendering problem.According to lighting criteria, general dwelling house, office and many public places, all require general colour rendering index Ra 〉=80, in operating room, fine arts chamber, museum, photo studio, perform in a radio or TV programme the Room, jeweler's shop, exclusive shop, luxury clubhouse and printing and dyeing, color and differentiate that place etc. then requires colour rendering index Ra 〉=90, and colour rendering index Ra is the bigger the better.
White light LEDs is formed mode by three kinds at present: 1. the LED with R, G, B three primary colours combines.2. form with the coating of ultraviolet leds chip R, G, B three primary colors fluorescent powder.3. applying yellow YAG fluorescent material with blue-light LED chip forms.In first kind of scheme, because the light that the monochromatic LED of R, G, B three primary colours sends, its spectral width is very narrow, and in visible light 380-780nm scope, its combined result spectrum continuity is very poor, and colour rendering index Ra is lower usually, is difficult to adopt.Very low in second kind of scheme owing to the present light efficiency of ultraviolet leds chip, and encapsulating material is easily aging, preventing ultraviolet leaks, and problems such as injuring human body is still unresolved, though its Ra is higher, uses in a large number yet.Therefore having the third scheme with the blue-light LED chip coating fluorescent powder only is used rapidly.
The third blue-light LED chip applies in the scheme of yellow YAG fluorescent material, can form white light with blue, yellow two complementary colours, but it is red because of lacking in the spectrum, so be difficult to make the white light LEDs of low colour temperature (for example correlated colour temperature is less than 4000K), and its colour rendering index Ra is also lower, most could be at the above colour rendering index Ra of 5500K greater than 80, and the highlyest also only have about in the of 85, can't realize the target of Ra 〉=90.In order to overcome this shortcoming, people add red fluorescence powder again on the basis of yellow fluorescent powder, formed the scheme of blue-light LED chip+yellow fluorescent powder+red fluorescence powder, in this scheme, can realize making the white light LEDs of low colour temperature (routine 2700-4000K), simultaneously colour rendering index Ra has been improved, it as Chinese patent application number is a kind of method that obtains the LED lamp of high light efficiency high-color rendering that discloses in 200710008637.5 the patent documentation, but obviously white light LEDs lacks green spectrum in the 380-780nm scope in this scheme, makes colour rendering index Ra improve and is restricted.In order to overcome this shortcoming, people have proposed another program again, in the patent documentation as Chinese patent application numbers 200610061934.1, as if a kind of of disclosure excites green emitting phosphor and red fluorescence powder to obtain the method for white light by blue-light LED chip, makes colour rendering index Ra improve a step again, and blue light, green glow, ruddiness three primary colours light have, very perfect, but in fact, use such scheme still continuous inadequately in visible spectrum, have defective.
The spectrum of (380-780nm) is continuous in the visible-range that the sun sends, but its white light color is different from the morning to the evening, from the winter to the summer, from south to the north, so people weigh with this index of colour temperature.And artificial light sources (except that black matrixes such as incandescent lamp, Metal halogen lamp) comes the difference of its white light color of approximate description because there are defective in spectrum continuity and spectral shape with correlated colour temperature.Popular in the market product correlated colour temperature is from about the 2700-13000K, make artificial light sources close as far as possible at a certain related colour warm area and sunshine, not only require the continuity of spectrum in full spectral region, but also require its spectral shape must be close as much as possible with solar spectrum, Here it is improves the direction of colour rendering index Ra, promptly require spectrum continuous as far as possible, but also require the spectrum height ratio of each wavelength to meet the requirements.And above-mentioned Chinese patent application number is in 200610061934.1 the patent documentation, also a kind of of disclosure excites green emitting phosphor by blue-ray LED, red fluorescence powder, with be selected from blue-green fluorescent powder, at least a fluorescent material in orange (or yellow) the look fluorescent material, and the method for acquisition white light LEDs, though said method can obtain white light LEDs, but if only applying more than three kinds or three kinds on the blue-light LED chip and even countless versions fluorescent material, pile up arbitrarily, though the spectrum continuity is definitely guaranteed, but its spectral shape is if differ too much with the homochromy warm area of sunshine, and colour rendering index Ra on the contrary can be lower.
Therefore, how to make white light LEDs can in full spectral region, keep the continuity of spectrum in present stage, and the spectrum height of its each wavelength again can be close as much as possible with solar spectrum, have become one and be badly in need of the important topic that solves.
[summary of the invention]
Purpose of the present invention, be to provide a kind of continuity that can in the full spectrum of 380-780nm, the correlated colour temperature scope from about the 2700-13000K, keep spectrum, and the White LED with high color rendering property that the spectrum height of its each wavelength again can be close as much as possible with solar spectrum.
The present invention is achieved through the following technical solutions goal of the invention:
A kind of White LED with high color rendering property, comprising excitation wavelength range is the blue-light LED chip and the phosphor powder layer that is coated on the blue-light LED chip of 445-465nm, it is characterized in that: described phosphor powder layer is included in blue-light LED chip and excites down the green emitting phosphor that produces green glow, and its emission wavelength is 495-535nm; Excite the yellow fluorescent powder that produces gold-tinted down at blue-light LED chip, its emission wavelength is 540-570nm; Excite the red fluorescence powder that produces ruddiness down at blue-light LED chip, its emission wavelength is 630-650nm.
The weight proportion of described green emitting phosphor, yellow fluorescent powder and red fluorescence powder is: 0.5-2.5: 1.0: 0.03-0.5.
Described green fluorescence meal component is the green powder of nitrogen oxide, the green powder of nitride or the green powder of YAG.
Described yellow fluorescence meal component is nitrogen oxide bloom, nitride bloom or YAG bloom.
Described red fluorescence meal component is nitrogen oxide rouge and powder, nitride rouge and powder or sulfide rouge and powder.
The present invention is according to the solar spectrum shape need in different-colour district, select the combination of the blue-light LED chip of suitable wavelength and bandwidth and green emitting phosphor, yellow fluorescent powder, red fluorescence powder to make White LED with high color rendering property, can be implemented in the visible light 380-780nm spectral region spectrum continuity as much as possible, thereby be implemented in the high-color rendering in the panchromatic temperature scope of 2700-13000K.The index that the present invention reaches at present: in the panchromatic temperature scope of 2700-13000K, produce in batches and can realize index Ra 〉=93, the highest can be near 98, therefore can be widely used in various white light LEDs being had the occasion of high-color rendering requirement, have remarkable economic efficiency.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the spectral curve of embodiments of the invention 1,2 and 3.
Fig. 2 is the spectral curve of embodiments of the invention 4,5 and 6.
Fig. 3 is the spectral curve of embodiments of the invention 7,8.
Fig. 4 is the curve of spectrum comparison diagram of the embodiment of the invention 6 and correlation technique 1.
Fig. 5 is the curve of spectrum comparison diagram of the embodiment of the invention 3 and correlation technique 2.
[specific embodiment]
Please consulting Fig. 1, Fig. 2 and Fig. 3 simultaneously, is the spectral curve of the embodiment 1-8 of White LED with high color rendering property of the present invention, and table one is the test data of embodiment 1-8, and its concrete formation is as described below respectively:
Embodiment 1:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 465nm, the collocation emission wavelength is that the green emitting phosphor of 535nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 570nm are the 650nm red fluorescence powder, it makes correlated colour temperature is 2670K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 0.5: 1.0: 0.50.
Embodiment 2:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 460nm, the collocation emission wavelength is that the green emitting phosphor of 530nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 560nm are the 650nm red fluorescence powder, it makes correlated colour temperature is 2917K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 0.6: 1.0: 0.40.
Embodiment 3:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 455nm, the collocation emission wavelength is that the green emitting phosphor of 520nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 555nm are the 650nm red fluorescence powder, it makes correlated colour temperature is 3452K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 0.7: 1.0: 0.35.
Embodiment 4:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 455nm, the collocation emission wavelength is that the green emitting phosphor of 500nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 555nm are the 650nm red fluorescence powder, it makes correlated colour temperature is 3996K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 1.0: 1.0: 0.25.
Embodiment 5:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 450nm, the collocation emission wavelength is that the green emitting phosphor of 500nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 550nm are the 650nm red fluorescence powder, it makes correlated colour temperature is 4986K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 1.5: 1.0: 0.15.
Embodiment 6:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 450nm, the collocation emission wavelength is that the green emitting phosphor of 500nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 550nm are the 630nm red fluorescence powder, it makes correlated colour temperature is 6530K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 1.7: 1.0: 0.10.
Embodiment 7:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 445nm, the collocation emission wavelength is that the green emitting phosphor of 500nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 545nm are the 630nm red fluorescence powder, it makes correlated colour temperature is 9046K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 2.1: 1.0: 0.05.
Embodiment 8:
A kind of White LED with high color rendering property, adopting excitation wavelength is the blue-ray LED blue chip of 445nm, the collocation emission wavelength is that the green emitting phosphor of 495nm, yellow fluorescent powder and the emission wavelength that emission wavelength is 540nm are the 630nm red fluorescence powder, it makes correlated colour temperature is 13178K, and wherein the weight proportion of green emitting phosphor, yellow fluorescent powder and red fluorescence powder is 2.5: 1.0: 0.03.
Table one:
| Embodiment | Correlated colour temperature K | Colour rendering index Ra | Luminous flux lm | Light efficiency lm/W | Voltage V | Forward current mA |
| ??1 | ??2670 | ??96.2 | ??42.83 | ??38.6 | ??3.17 | ??350 |
| ??2 | ??2917 | ??97.2 | ??43.88 | ??39.9 | ??3.14 | ??350 |
| ??3 | ??3452 | ??96.7 | ??48.13 | ??40.9 | ??3.36 | ??350 |
| ??4 | ??3996 | ??97.3 | ??48.58 | ??43.3 | ??3.20 | ??350 |
| ??5 | ??4986 | ??95.1 | ??53.98 | ??45.3 | ??3.40 | ??350 |
| ??6 | ??6530 | ??94.3 | ??57.74 | ??48.5 | ??3.40 | ??350 |
| ??7 | ??9046 | ??94.0 | ??58.64 | ??49.2 | ??3.41 | ??350 |
| ??8 | ??13178 | ??95.2 | ??54.94 | ??46.2 | ??3.40 | ??350 |
With reference to the measured data of figure 1, Fig. 2 and Fig. 3 and table one as seen, adopting the selective exitation wave-length coverage is the blue-ray LED of 445-465nm, add that emission wavelength is the White LED with high color rendering property that combination that the green emitting phosphor of 495-535nm, yellow fluorescent powder that emission wavelength is 540-570nm and emission wavelength are the red fluorescence powder of 630-650nm is made, in the panchromatic temperature scope of 2700-13000K, can realize colour rendering index Ra 〉=93, the highest can reaching near 98 fully can dealing with various requirements be satisfied the occasion of White LED with high color rendering property requirement.
See also Fig. 4, the curve of spectrum comparison diagram of the embodiment of the invention 6 and correlation technique 1.Wherein, specifically constituting of correlation technique 1: adopting the selective exitation wave-length coverage is the blue-ray LED of 450nm, add that emission wavelength is that the yellow fluorescent powder of 550nm and red fluorescence powder that emission wavelength is 630nm are made, wherein the weight proportion of yellow fluorescent powder and red fluorescence powder is: 1.0: 0.10, both measured datas were to such as table two.
Table two:
| Title | Correlated colour temperature K | Colour rendering index Ra | Luminous flux lm | Light efficiency lm/W | Voltage V | Forward current mA |
| Embodiment 6 | ??6530 | ??94.3 | ??57.74 | ??48.5 | ??3.40 | ??350 |
| Correlation technique 1 | ??6442 | ??86.7 | ??72.76 | ??62.3 | ??3.34 | ??350 |
The contrast of measured spectra curve as can be seen from the measured data of table two and Fig. 4: though adopt the sample pipe light efficiency of two kinds of fluorescent material will be higher than the prescription of three kinds of fluorescent material in the embodiment of the invention 6 in the correlation technique 1, but both and the contrast of blackbody radiation spectrum curve, the curve of spectrum of the prescription pilot sample of three kinds of fluorescent material of the embodiment of the invention 6 usefulness is more approaching, correlation technique 1 adopts two kinds of fluorescent material prescriptions then to have the spectrum defective at spectrum 450-550nm place, and its colour rendering is starkly lower than the white light LEDs that three kinds of fluorescent material prescriptions are made.
Seeing also Fig. 5, is the curve of spectrum comparison diagram of the embodiment of the invention 3 and correlation technique 2.Wherein, the fluorescent material that green emitting phosphor, yellow look fluorescent material and the red fluorescence powder that correlation technique 2 adopts and embodiment 3 are identical, but the weight proportion of three kinds of fluorescent material is 0.3: 1.0: 0.60, both measured datas are to such as table three.
Table three:
| Title | Correlated colour temperature K | Colour rendering index Ra | Luminous flux lm | Light efficiency lm/W | Voltage V | Forward current mA |
| Embodiment 3 | ??3452 | ??96.7 | ??48.13 | ??40.9 | ??3.36 | ??350 |
| Correlation technique 2 | ??3561 | ??84.6 | ??39.55 | ??32.8 | ??3.44 | ??350 |
From the test data of table three and Fig. 5 curve of spectrum as can be seen: the formula rate that adopts three kinds of fluorescent material appropriately whether, the white light LEDs colour rendering index Ra that produces has bigger difference.Its colour rendering index of white light LEDs of making under the appropriate situation of three kinds of fluorescent material prescriptions can reach 96.7, and the white light LEDs colour rendering index of making under inappropriate situation of filling a prescription only reaches 84.6, and its light efficiency also is lower than the appropriate white light LEDs sample of prescription.
Green emitting phosphor of the present invention can adopt the green powder of nitrogen oxide, the green powder of nitride or the green powder of YAG, yellow fluorescent powder can adopt nitrogen oxide bloom, nitride bloom or YAG bloom, red fluorescence powder can adopt nitrogen oxide rouge and powder, nitride rouge and powder or sulfide rouge and powder, and above material all can adopt the commercially available prod.
Claims (5)
1. White LED with high color rendering property, comprising excitation wavelength range is the blue-light LED chip and the phosphor powder layer that is coated on the blue-light LED chip of 445-465nm, it is characterized in that: described phosphor powder layer is included in blue-light LED chip and excites down the green emitting phosphor that produces green glow, and its emission wavelength is 495-535nm; Excite the yellow fluorescent powder that produces gold-tinted down at blue-light LED chip, its emission wavelength is 540-570nm; Excite the red fluorescence powder that produces ruddiness down at blue-light LED chip, its emission wavelength is 630-650nm.
2. White LED with high color rendering property according to claim 1 is characterized in that: the weight proportion of described green emitting phosphor, yellow fluorescent powder and red fluorescence powder is: 0.5-2.5: 1.0: 0.03-0.5.
3. White LED with high color rendering property according to claim 1 is characterized in that: described green fluorescence meal component is the green powder of nitrogen oxide, the green powder of nitride or the green powder of YAG.
4. White LED with high color rendering property according to claim 1 is characterized in that: described yellow fluorescence meal component is nitrogen oxide bloom, nitride bloom or YAG bloom.
5. White LED with high color rendering property according to claim 1 is characterized in that: described red fluorescence meal component is nitrogen oxide rouge and powder, nitride rouge and powder or sulfide rouge and powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910111041A CN101806430A (en) | 2009-02-17 | 2009-02-17 | High-color rendering white-light LED |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910111041A CN101806430A (en) | 2009-02-17 | 2009-02-17 | High-color rendering white-light LED |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101806430A true CN101806430A (en) | 2010-08-18 |
Family
ID=42608328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910111041A Pending CN101806430A (en) | 2009-02-17 | 2009-02-17 | High-color rendering white-light LED |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101806430A (en) |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937963A (en) * | 2010-08-19 | 2011-01-05 | 深圳市洲明科技股份有限公司 | LED light emitting unit and encapsulation method thereof |
| CN102127436A (en) * | 2010-11-24 | 2011-07-20 | 映瑞光电科技(上海)有限公司 | Mixed fluorescent powder and preparation method of white light LED |
| CN102163660A (en) * | 2011-02-26 | 2011-08-24 | 潍坊广生新能源有限公司 | Light emitting diode (LED) packaging process |
| CN102352970A (en) * | 2011-08-09 | 2012-02-15 | 中山大学 | Novel LED (light emitting diode) light source and illumination device thereof |
| CN102629655A (en) * | 2012-03-14 | 2012-08-08 | 江门市蓬江区远大发光材料有限公司 | High color white light LED device with afterglow property |
| CN102790163A (en) * | 2012-01-16 | 2012-11-21 | 中山大学 | White light LED based on purple light LED chip and illuminating device of white light LED |
| CN102913799A (en) * | 2012-11-05 | 2013-02-06 | 吴华 | White light LED (light emitting diode) lamp with yellow light chip |
| CN103459915A (en) * | 2011-02-09 | 2013-12-18 | 株式会社东芝 | White light source and white light source system using same |
| CN103493226A (en) * | 2011-04-22 | 2014-01-01 | 株式会社东芝 | White light source and white light source system using same |
| CN103594608A (en) * | 2013-10-31 | 2014-02-19 | 深圳市聚飞光电股份有限公司 | White light LED, backlight module and manufacturing method of white light LED |
| CN103727438A (en) * | 2014-01-14 | 2014-04-16 | 四川品龙光电科技有限公司 | LED lamp and manufacturing method |
| CN103807648A (en) * | 2014-02-19 | 2014-05-21 | 轻工业部南京电光源材料科学研究所 | LED fluorescent lamp based on continuous spectrum fluorescent powder |
| CN104051601A (en) * | 2014-06-26 | 2014-09-17 | 江门朗天照明有限公司 | LED packaging light source free from damage to visual system and manufacturing method thereof |
| CN105339730A (en) * | 2013-04-05 | 2016-02-17 | 伊顿保护系统Ip有限两合公司 | Led module, luminaire comprising same and method for influencing a light spectrum |
| CN106523956A (en) * | 2016-12-31 | 2017-03-22 | 复旦大学 | Multi-excitation-wavelength fluorescent powder converting full-spectrum LED light source |
| CN107623064A (en) * | 2017-09-06 | 2018-01-23 | 中国科学院长春光学精密机械与物理研究所 | Simulate LED light source of blackbody radiation spectrum and preparation method and application |
| CN107785476A (en) * | 2017-09-29 | 2018-03-09 | 温州大学 | A kind of white light LEDs fluorescent glass film and preparation method thereof |
| CN109103174A (en) * | 2017-06-21 | 2018-12-28 | 深圳市斯迈得半导体有限公司 | It is a kind of close to sunlight full-spectrum LED light-source encapsulation |
| CN110098304A (en) * | 2019-04-29 | 2019-08-06 | 佛山市国星光电股份有限公司 | A kind of novel light-emitting lamp bead and lamps and lanterns |
| CN110118312A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
| CN110211951A (en) * | 2019-07-11 | 2019-09-06 | 上海应用技术大学 | A kind of white LED lamp structure of the multistage adjustable color based on full spectrum |
| CN110970541A (en) * | 2018-09-29 | 2020-04-07 | 有研稀土新材料股份有限公司 | Semiconductor light source and optical device prepared by same |
| CN111285681A (en) * | 2018-12-07 | 2020-06-16 | 上海航空电器有限公司 | Full-spectrum fluorescent ceramic for laser illumination and preparation method thereof |
| CN111403576A (en) * | 2020-03-19 | 2020-07-10 | 北京宇极芯光光电技术有限公司 | Long-life high-color-rendering white light L ED light source |
| CN113937202A (en) * | 2021-09-29 | 2022-01-14 | 佛山市国星光电股份有限公司 | White light source and white light source system |
| WO2024109761A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Full-color bionic fluorescent composition, full-color bionic fluorescent film, and full-color bionic light source |
-
2009
- 2009-02-17 CN CN200910111041A patent/CN101806430A/en active Pending
Cited By (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937963A (en) * | 2010-08-19 | 2011-01-05 | 深圳市洲明科技股份有限公司 | LED light emitting unit and encapsulation method thereof |
| CN102127436A (en) * | 2010-11-24 | 2011-07-20 | 映瑞光电科技(上海)有限公司 | Mixed fluorescent powder and preparation method of white light LED |
| EP2674662B1 (en) * | 2011-02-09 | 2020-04-01 | Kabushiki Kaisha Toshiba | White light source and white light source system using same |
| EP3683494A1 (en) * | 2011-02-09 | 2020-07-22 | Kabushiki Kaisha Toshiba | White light source and white light source system including the same |
| US9112120B2 (en) | 2011-02-09 | 2015-08-18 | Kabushiki Kaisha Toshiba | White light source and white light source system including the same |
| CN103459915B (en) * | 2011-02-09 | 2016-06-01 | 株式会社东芝 | White light source and include the white light source system of described white light source |
| CN103459915A (en) * | 2011-02-09 | 2013-12-18 | 株式会社东芝 | White light source and white light source system using same |
| CN102163660A (en) * | 2011-02-26 | 2011-08-24 | 潍坊广生新能源有限公司 | Light emitting diode (LED) packaging process |
| CN102163660B (en) * | 2011-02-26 | 2013-03-20 | 潍坊广生新能源有限公司 | Light emitting diode (LED) packaging process |
| CN103493226A (en) * | 2011-04-22 | 2014-01-01 | 株式会社东芝 | White light source and white light source system using same |
| CN102352970A (en) * | 2011-08-09 | 2012-02-15 | 中山大学 | Novel LED (light emitting diode) light source and illumination device thereof |
| CN102352970B (en) * | 2011-08-09 | 2015-07-22 | 中山大学 | Novel LED (light emitting diode) light source and illumination device thereof |
| CN102790163A (en) * | 2012-01-16 | 2012-11-21 | 中山大学 | White light LED based on purple light LED chip and illuminating device of white light LED |
| CN102629655B (en) * | 2012-03-14 | 2015-02-11 | 江门市远大发光材料有限公司 | High color white light LED device with afterglow property |
| CN102629655A (en) * | 2012-03-14 | 2012-08-08 | 江门市蓬江区远大发光材料有限公司 | High color white light LED device with afterglow property |
| CN102913799A (en) * | 2012-11-05 | 2013-02-06 | 吴华 | White light LED (light emitting diode) lamp with yellow light chip |
| US10851948B2 (en) | 2013-04-05 | 2020-12-01 | Eaton Protection Systems Ip Gmbh & Co. Kg | LED module, luminaire comprising same and method for influencing a light spectrum |
| CN105339730A (en) * | 2013-04-05 | 2016-02-17 | 伊顿保护系统Ip有限两合公司 | Led module, luminaire comprising same and method for influencing a light spectrum |
| CN103594608B (en) * | 2013-10-31 | 2016-05-18 | 深圳市聚飞光电股份有限公司 | The preparation method of a kind of white light LEDs, backlight module and white light LEDs |
| CN103594608A (en) * | 2013-10-31 | 2014-02-19 | 深圳市聚飞光电股份有限公司 | White light LED, backlight module and manufacturing method of white light LED |
| CN103727438A (en) * | 2014-01-14 | 2014-04-16 | 四川品龙光电科技有限公司 | LED lamp and manufacturing method |
| CN103807648A (en) * | 2014-02-19 | 2014-05-21 | 轻工业部南京电光源材料科学研究所 | LED fluorescent lamp based on continuous spectrum fluorescent powder |
| CN104051601A (en) * | 2014-06-26 | 2014-09-17 | 江门朗天照明有限公司 | LED packaging light source free from damage to visual system and manufacturing method thereof |
| CN106523956A (en) * | 2016-12-31 | 2017-03-22 | 复旦大学 | Multi-excitation-wavelength fluorescent powder converting full-spectrum LED light source |
| CN109103174A (en) * | 2017-06-21 | 2018-12-28 | 深圳市斯迈得半导体有限公司 | It is a kind of close to sunlight full-spectrum LED light-source encapsulation |
| CN107623064A (en) * | 2017-09-06 | 2018-01-23 | 中国科学院长春光学精密机械与物理研究所 | Simulate LED light source of blackbody radiation spectrum and preparation method and application |
| CN107785476A (en) * | 2017-09-29 | 2018-03-09 | 温州大学 | A kind of white light LEDs fluorescent glass film and preparation method thereof |
| CN107785476B (en) * | 2017-09-29 | 2018-11-02 | 温州大学 | A kind of white light LEDs fluorescent glass film and preparation method thereof |
| CN110118312A (en) * | 2018-02-07 | 2019-08-13 | 深圳光峰科技股份有限公司 | Wavelength converter |
| CN110970541A (en) * | 2018-09-29 | 2020-04-07 | 有研稀土新材料股份有限公司 | Semiconductor light source and optical device prepared by same |
| CN110970541B (en) * | 2018-09-29 | 2023-04-21 | 有研稀土新材料股份有限公司 | Semiconductor light source and optical device prepared by same |
| CN111285681A (en) * | 2018-12-07 | 2020-06-16 | 上海航空电器有限公司 | Full-spectrum fluorescent ceramic for laser illumination and preparation method thereof |
| CN110098304A (en) * | 2019-04-29 | 2019-08-06 | 佛山市国星光电股份有限公司 | A kind of novel light-emitting lamp bead and lamps and lanterns |
| CN110211951A (en) * | 2019-07-11 | 2019-09-06 | 上海应用技术大学 | A kind of white LED lamp structure of the multistage adjustable color based on full spectrum |
| CN111403576A (en) * | 2020-03-19 | 2020-07-10 | 北京宇极芯光光电技术有限公司 | Long-life high-color-rendering white light L ED light source |
| CN111403576B (en) * | 2020-03-19 | 2021-07-09 | 北京宇极芯光光电技术有限公司 | Long-life high-color-rendering white light LED light source |
| CN113937202A (en) * | 2021-09-29 | 2022-01-14 | 佛山市国星光电股份有限公司 | White light source and white light source system |
| CN113937202B (en) * | 2021-09-29 | 2024-05-14 | 佛山市国星光电股份有限公司 | White light source and white light source system |
| WO2024109761A1 (en) * | 2022-11-21 | 2024-05-30 | 四川世纪和光科技发展有限公司 | Full-color bionic fluorescent composition, full-color bionic fluorescent film, and full-color bionic light source |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101806430A (en) | High-color rendering white-light LED | |
| CN106068675B (en) | For strengthening the lamp of illumination optical and color preference | |
| CN105683653B (en) | The color preference light source of enhancing | |
| CN102714260B (en) | Include the solid-state lighting device of light mixture | |
| CN104303298B (en) | White luminous module | |
| JP6380826B2 (en) | Light source device | |
| CN201225532Y (en) | Power type white light LED | |
| CN102667320B (en) | There is the lighting device of the spectral power distribution of restriction | |
| CN104206011B (en) | Apparatus, systems and methods for a multichannel white light illumination source | |
| CN107926091A (en) | Lighting device with adjustable operation | |
| CN105848339B (en) | A kind of multi-primary LED lighting source intelligent dimming shading process and device | |
| CN107710425B (en) | White light source system | |
| CN104415463A (en) | Circadian friendly led light source | |
| CN103329293A (en) | LED module and illumination device | |
| CN102244185B (en) | White light LED (light emitting diode) with high color rendering index, high light efficiency and low color temperature and preparation method thereof | |
| CN107369742B (en) | A kind of high S/P value white light LEDs of high color rendering index (CRI) and its preparation method and application | |
| CN104633545B (en) | Height is aobvious to refer to LED lamp and its design method | |
| Tang et al. | Blue light hazard optimization for high quality white LEDs | |
| CN101572262A (en) | Wide-spectrum white-light LED | |
| CN102231377B (en) | High color rendering light emitting diode and manufacture method thereof | |
| CN103000822A (en) | Preparing method for organic white LED illumination light source with high color-rendering index and adjustable color temperature | |
| CN101866911A (en) | Structure of light-emitting diode with high color rendering index | |
| Chen et al. | Spectral design and evaluation of OLEDs as light sources | |
| CN201209828Y (en) | Wide spectrum white light LED | |
| JP6544663B2 (en) | Light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100818 |