CN101958381A - Light-mixing method for LED light source based on blue light - Google Patents
Light-mixing method for LED light source based on blue light Download PDFInfo
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- CN101958381A CN101958381A CN2010102790073A CN201010279007A CN101958381A CN 101958381 A CN101958381 A CN 101958381A CN 2010102790073 A CN2010102790073 A CN 2010102790073A CN 201010279007 A CN201010279007 A CN 201010279007A CN 101958381 A CN101958381 A CN 101958381A
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Abstract
The invention discloses a light-mixing method for an LED light source based on a blue light. The LED light source consists of white light sources and blue light sources, wherein the white light sources are uniformly distributed outside the LED light source, the blue light sources are uniformly distributed inside the LED light source, a color ratio of the LED light sources of red light R to green light G to blue light B is 13.4-13.6%: 81.2-81.8%:4.6-5.4%. By utilizing a light-mixing technology, the color temperature can be adjusted, the color rendering is improved, and the stability of a color coordinate is also very high.
Description
Technical field
The present invention relates to led light source mixed light technology, relate in particular to a kind of led light source light mixing method based on blue light.
Background technology
At first we learn about LED, and LED is made by semiconductors such as GaAs, gallium arsenide phosphides, and its core is electroluminescent P-N knot.When applying under the effect of voltage at P-N knot two ends, electronics and " hole " mutually combine and give off energy with the form of photon, if the energy of photon is in visible-range, thereby give off radiance.The emission wavelength of LED is by the decision of the energy gap of semi-conducting material, the energy gap difference of different materials, and the light wavelength of generation is also inequality, thus the color that presents is also inequality.Therefore available different materials is made the LED of different colours, as red, green, blue.White light is a kind of complex light, and generally the light by two kinds of wavelength or three kinds of wavelength mixes.LED realizes that the method for white light mainly contains three kinds at present: the one, make up with synthesize white light by red, green, blue three primary colors multicore sheet; Two are to use blue-light LED chip to excite yellow fluorescent powder, the green-yellow light synthesize white light that is sent by LED blue light and fluorescent material.The 3rd, adopt ultraviolet leds to excite the three primary colors fluorescent powder synthesize white light.More than three kinds of methods all have some problems: colour temperature is fixing cannot regulate colour temperature according to the environment needs.
Summary of the invention
The present invention seeks to provides a kind of led light source light mixing method based on blue light at the defective that prior art exists.
The present invention adopts following technical scheme for achieving the above object:
The present invention is based on the led light source light mixing method of blue light, described led light source is made of white light source and blue light source, the outside uniform white light source of described led light source, the inner uniform blue light source of led light source, described led light source color ratio is: ruddiness R=13.4%-13.6%, green glow G=81.2%-81.8%, blue light B=4.6%-5.4%.
Preferably, described blue light wavelength is 470nm.
The present invention uses the mixed light technology, not only can the regulated at will colour temperature, and the stable color coordinate degree is also very high.
Description of drawings
Fig. 1: the electric light source test report of existing LED.
Fig. 2: the embodiment of the invention 1 electric light source test report.
Fig. 3: the embodiment of the invention 2 electric light source test report.
Embodiment
As shown in Figure 1.Test report shows among the figure, and this light source color temperature Tc=4051K color rendering index: this light source of Ra=63.1. is the green-yellow light synthesize white light that sends by LED blue light and fluorescent material.Color ratio: ruddiness R=14.1% green glow G=84%B=1.9%.
Please see Figure example 2, behind the blue light that adds 470nm, color ratio: R=13.6%, G=81.8%, B=4.6%, color rendering index Ra=72.9.By data as can be seen, the colour temperature and the color rendering index of product have been improved by the method for mixed light.Colour temperature Tc=5220K brings up to 4.6% when the blue light ratio from 2.1%, and colour temperature is increased to 5220K from 4146K.
Please see Figure example 3, after the blue light ratio that strengthens 470nm, color ratio: R=13.4%G=81.2%B=5.4%; Colour temperature Tc=5606K brings up to 5.4% when the blue light ratio from 4.6%, and colour temperature is increased to 5606K from 5220K.
Can see by above data, when we need the light source of high colour temperature, can obtain by the method for mixed light.In conjunction with the data of top mixed blue light, can obtain the colour temperature of any our needs by the mode of mixed light.
Claims (2)
1. led light source light mixing method based on blue light, it is characterized in that described led light source is made of white light source and blue light source, the outside uniform white light source of described led light source, the inner uniform blue light source of led light source, described led light source color ratio is: ruddiness R=13.4%-13.6%, green glow G=81.2%-81.8%, blue light B=4.6%-5.4%.
2. the led light source light mixing method based on blue light according to claim 1 is characterized in that described blue light wavelength is 470nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790073A CN101958381A (en) | 2010-09-10 | 2010-09-10 | Light-mixing method for LED light source based on blue light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790073A CN101958381A (en) | 2010-09-10 | 2010-09-10 | Light-mixing method for LED light source based on blue light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101958381A true CN101958381A (en) | 2011-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102790073A Pending CN101958381A (en) | 2010-09-10 | 2010-09-10 | Light-mixing method for LED light source based on blue light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101958381A (en) |
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2010
- 2010-09-10 CN CN2010102790073A patent/CN101958381A/en active Pending
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20110126 |