CN103337495A - Color temperature adjustable white-light LED - Google Patents
Color temperature adjustable white-light LED Download PDFInfo
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- CN103337495A CN103337495A CN2013102586041A CN201310258604A CN103337495A CN 103337495 A CN103337495 A CN 103337495A CN 2013102586041 A CN2013102586041 A CN 2013102586041A CN 201310258604 A CN201310258604 A CN 201310258604A CN 103337495 A CN103337495 A CN 103337495A
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Abstract
The invention discloses a color temperature adjustable white-light LED, relates to white-light LEDs, and solves the problem about poor variability and adjustability of light colors of a conventional LED. The color temperature adjustable white-light LED comprises one or more low-color-temperature LED chip and a high-color-temperature LED chip which are fixed on a base, wherein each of the low-color-temperature LED chip and the high-color-temperature LED chip is coated with a fluorescent layer. According to the invention, an independent control mode is adopted when the low-color-temperature LED chip is combined with the high-color-temperature LED chip, and meanwhile, the light extraction efficiency, the light quantity, the color rendering index, the color temperature, the color zone and the like of a finished product LED can be adjusted through changing number and type of the low-color-temperature module LED and number and type of the high-color-temperature module LED as well as kind, type, proportion and the like of fluorescent glue.
Description
Technical field
The present invention relates to white light LEDs, be specifically related to a kind of adjustable color temperature white light LEDs.
Background technology
The LED opto-electronics because have the characteristics of energy-saving and environmental protection, and obtains more industry support and the market demand as an emerging rising industry, becomes beautiful industry development landscape one.Yet, though existing LED color is various, very flexible.
The white light source that the RGB three-color LED is synthetic, though can be by control, realize photochromic variable, the green glow chip of production at present, red light chips electric light transformation efficiency is low, has a strong impact on the light extraction efficiency of device, and poor heat stability, the spectral emissions peak is narrow, and is dazzling, has a strong impact on eye health.
In order to increase photochromic changeability and modulability, solve single photochromic dullness simultaneously, problems such as very flexible are necessary to research and develop a kind of high light efficiency, LED that colour temperature is adjustable.
Summary of the invention
The present invention is for the photochromic changeability that solves existing LED existence and the problem of modulability difference, and a kind of adjustable color temperature white light LEDs is provided.
The present invention is achieved by the following technical solutions:
A kind of adjustable color temperature white light LEDs comprises at least one low colour temperature led chip and a high colour temperature led chip of being fixed on the base, applies fluorescence coating respectively on described low colour temperature led chip and the high colour temperature led chip.
Further, described low colour temperature led chip and high colour temperature led chip comprise the blue-ray LED of at least two series connection respectively.
The reference color temperature of described low colour temperature led chip is 4000-4500K.
The reference color temperature of described high colour temperature led chip is 7000-10000K, wherein the 8000-9000K best results.
The described chip wave-length coverage that excites is 445-465nm, wherein the 455-460nm best results.
Described fluorescence coating is by fluorescent material and join arogel and mix according to different proportion, and described fluorescent material is yellow fluorescent substance, green fluorescence material, yellow and green fluorescence material mixture, or layering yellow, the green fluorescence material excites.
In the present invention, when low colour temperature led chip and the combination of high colour temperature led chip, adopt independent control mode, simultaneously, the kind of number, model and the fluorescent glue of number, model and high colour temperature module LED that can be by changing low colour temperature led module LED, model, proportioning etc. are regulated the light extraction efficiency, luminous flux, color rendering index, colour temperature, look district of finished product LED etc.
Description of drawings
The structural representation of LED in Fig. 1 embodiment of the invention one;
The low colour temperature module spectrogram of LED in Fig. 2 embodiment of the invention one;
The high colour temperature module spectrogram of LED in Fig. 3 embodiment of the invention one;
The height colour temperature module mixed light spectrogram of LED in Fig. 4 embodiment of the invention one;
Among the figure: 1-base, the low colour temperature led chip of 2-, the high colour temperature led chip of 3-, 4-blue-ray LED, 5-fluorescence coating.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, the present invention is described in more detail below in conjunction with drawings and Examples, should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Embodiment 1
As shown in Figure 1, with 3 blue-ray LEDs 4 and 2 blue-ray LEDs 4, place respectively on low colour temperature led chip 2 and the high colour temperature led chip 3, low colour temperature led chip 2 and high colour temperature led chip 3 are separately fixed on the base 1, lead adopts series system to connect blue-ray LED 4 and base 1, on low colour temperature led chip 2, apply yellow fluorescent powder and the high mixture ratio of joining arogel (fluorescent material: the mixture of joining arogel=50:100) then, be packaged into the low colour temperature finished product light source of 4000-4500K colour temperature, after connecting electrode, the white-light spectrum that excites as shown in Figure 2, the white light colour temperature is 4319K, photochromic is yellow partially white light, highlighting of yellow-green fluorescence peak improved the luminous flux (more than 160lm) of this white light LEDs greatly when guaranteeing low colour temperature; On high colour temperature led chip 3, apply yellow fluorescent powder and the low proportioning of joining arogel (fluorescent material: the mixture of joining arogel=15:100), be packaged into the low colour temperature finished product light source of 8000-9000K colour temperature, after connecting electrode, the white-light spectrum that excites as shown in Figure 3, the white light colour temperature is 8055K, photochromic is cold white blue partially, and highlighting of blue-fluorescence peak improved the cold white effect of this white light LEDs greatly when guaranteeing high colour temperature.
Hang down colour temperature led chip 2 and high colour temperature led chip 3 by driving respectively with intelligent object after being packaged into finished product, realize the adjustable intelligent color-changing effect of colour temperature, drive current 1:1 (being under the situation of 350mA), the white-light spectrum that excites as shown in Figure 4, the white light colour temperature is 5886K, and is photochromic for just white.
Embodiment 2
A kind of adjustable color temperature white light LEDs, comprise 3 low colour temperature led chips 2 and 4 high colour temperature led chips 3 of being fixed on the base 1, low colour temperature led chip 2 comprises the blue-ray LED 4 of 2 series connection, high colour temperature led chip 3 comprises the blue-ray LED 4 of 4 series connection, apply fluorescence coating 5 respectively on described low colour temperature led chip and the high colour temperature led chip, apply yellow fluorescent powder and the high mixture ratio of joining arogel (fluorescent material: the mixture of joining arogel=60:100) on the low colour temperature led chip 2, be packaged into the low colour temperature finished product light source of 4000-4500K colour temperature, on high colour temperature led chip 3, apply yellow fluorescent powder and the low proportioning of joining arogel (fluorescent material: the mixture of joining arogel=20:100), be packaged into the low colour temperature finished product light source of 7000-9000K colour temperature, the chip wave-length coverage that excites of LED is 445-465nm.
A kind of adjustable color temperature white light LEDs, comprise 2 low colour temperature led chips 2 and 5 high colour temperature led chips 3 of being fixed on the base 1, low colour temperature led chip 2 comprises the blue-ray LED 4 of 4 series connection, high colour temperature led chip 3 comprises the blue-ray LED 4 of 4 series connection, apply fluorescence coating 5 respectively on described low colour temperature led chip and the high colour temperature led chip, apply yellow fluorescent powder and the high mixture ratio of joining arogel (fluorescent material: the mixture of joining arogel=45:100) on the low colour temperature led chip 2, be packaged into the low colour temperature finished product light source of 4000-4500K colour temperature, on high colour temperature led chip 3, apply yellow fluorescent powder and the low proportioning of joining arogel (fluorescent material: the mixture of joining arogel=18:100), be packaged into the low colour temperature finished product light source of 8000-10000K colour temperature, the chip wave-length coverage that excites of LED is 455-460nm.
Claims (8)
1. adjustable color temperature white light LEDs, it is characterized in that, comprise at least one the low colour temperature led chip (2) and the high colour temperature led chip (3) that are fixed on the base (1), apply fluorescence coating (5) respectively on described low colour temperature led chip (2) and the high colour temperature led chip (3).
2. a kind of adjustable color temperature white light LEDs according to claim 1 is characterized in that, described low colour temperature led chip (2) and high colour temperature led chip (3) comprise the blue-ray LED (4) of at least two series connection respectively.
3. a kind of adjustable color temperature white light LEDs according to claim 1 and 2 is characterized in that, the reference color temperature of described low colour temperature led chip (2) is 4000-4500K.
4. a kind of adjustable color temperature white light LEDs according to claim 1 and 2 is characterized in that, the reference color temperature of described high colour temperature led chip (3) is 7000-10000K.
5. a kind of adjustable color temperature white light LEDs according to claim 4 is characterized in that, the reference color temperature of described high colour temperature led chip (3) is 8000-9000K.
6. a kind of adjustable color temperature white light LEDs according to claim 1 and 2 is characterized in that, the described chip wave-length coverage that excites is 445-465nm.
7. a kind of adjustable color temperature white light LEDs according to claim 6 is characterized in that, the described chip wave-length coverage that excites is 455-460nm.
8. a kind of adjustable color temperature white light LEDs according to claim 1 and 2, it is characterized in that, described fluorescence coating (5) is by fluorescent material and join arogel and mix according to different proportion, described fluorescent material is yellow fluorescent substance, green fluorescence material, yellow and green fluorescence material mixture, or layering yellow, the green fluorescence material excites.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102586041A CN103337495A (en) | 2013-06-26 | 2013-06-26 | Color temperature adjustable white-light LED |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102586041A CN103337495A (en) | 2013-06-26 | 2013-06-26 | Color temperature adjustable white-light LED |
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| CN103337495A true CN103337495A (en) | 2013-10-02 |
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| CN2013102586041A Pending CN103337495A (en) | 2013-06-26 | 2013-06-26 | Color temperature adjustable white-light LED |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061532A (en) * | 2014-07-21 | 2014-09-24 | 中山市泓昌光电科技有限公司 | Scheme for lowering color tolerance of LED light sources |
| CN105489738A (en) * | 2016-02-16 | 2016-04-13 | 惠州雷曼光电科技有限公司 | White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device |
| CN105782781A (en) * | 2014-12-23 | 2016-07-20 | 欧普照明股份有限公司 | Multi-mode illumination device and lamp |
| CN109523908A (en) * | 2017-09-19 | 2019-03-26 | 群创光电股份有限公司 | Display device |
| CN110964435A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Fluorescent polymer, white light LED prepared from fluorescent polymer and preparation method of white light LED |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110193108A1 (en) * | 2010-02-08 | 2011-08-11 | Paragon Semiconductor Lighting Technology Co., Ltd. | Light-mixing type led package structure for increasing color render index |
| CN201935004U (en) * | 2011-01-25 | 2011-08-17 | 苏州晶能科技有限公司 | White-light LED (light-emitting diode) planar light source module with adjustable color temperature |
| CN102956625A (en) * | 2011-08-18 | 2013-03-06 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting device |
-
2013
- 2013-06-26 CN CN2013102586041A patent/CN103337495A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110193108A1 (en) * | 2010-02-08 | 2011-08-11 | Paragon Semiconductor Lighting Technology Co., Ltd. | Light-mixing type led package structure for increasing color render index |
| CN201935004U (en) * | 2011-01-25 | 2011-08-17 | 苏州晶能科技有限公司 | White-light LED (light-emitting diode) planar light source module with adjustable color temperature |
| CN102956625A (en) * | 2011-08-18 | 2013-03-06 | 鸿富锦精密工业（深圳）有限公司 | Light-emitting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061532A (en) * | 2014-07-21 | 2014-09-24 | 中山市泓昌光电科技有限公司 | Scheme for lowering color tolerance of LED light sources |
| CN105782781A (en) * | 2014-12-23 | 2016-07-20 | 欧普照明股份有限公司 | Multi-mode illumination device and lamp |
| CN105489738A (en) * | 2016-02-16 | 2016-04-13 | 惠州雷曼光电科技有限公司 | White light LED device with adjustable color temperature display index, and preparing method and regulating and controlling method of white light LED device |
| CN109523908A (en) * | 2017-09-19 | 2019-03-26 | 群创光电股份有限公司 | Display device |
| CN110964435A (en) * | 2018-09-29 | 2020-04-07 | 中国石油化工股份有限公司 | Fluorescent polymer, white light LED prepared from fluorescent polymer and preparation method of white light LED |
| CN110964435B (en) * | 2018-09-29 | 2021-11-19 | 中国石油化工股份有限公司 | Fluorescent polymer, white light LED prepared from fluorescent polymer and preparation method of white light LED |
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Application publication date: 20131002 |