CN101958382A - LED light source mixing method based on red light - Google Patents
LED light source mixing method based on red light Download PDFInfo
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- CN101958382A CN101958382A CN2010102790177A CN201010279017A CN101958382A CN 101958382 A CN101958382 A CN 101958382A CN 2010102790177 A CN2010102790177 A CN 2010102790177A CN 201010279017 A CN201010279017 A CN 201010279017A CN 101958382 A CN101958382 A CN 101958382A
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Abstract
The invention discloses a LED light source mixing method based on red light. The LED light source consists of white light sources and red light sources, the white light sources are evenly distributed outside the LED light source and the red light sources are evenly distributed inside the LED light source; the color ratio of the LED light source is as follows: 10 to 40% of red light R, 56 to 80% of green light G and1.2 to 5% of blue light B. By using a light mixing technology, the invention not only greatly improves colour rendering, but also has very high stability of color coordinate and simultaneously can control color temperature.
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 ruddiness.
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: light efficiency is not high, color rendering is low, light decay is big.In white light LEDs, in the scope of colour temperature 2700-10000K, because the disappearance of wavelength 620-770nm ruddiness causes color rendering low, color saturation is poor.Moreover when the LED temperature raise, the discreteness of fluorescent material caused XY axle color coordinate drift serious.
Summary of the invention
The present invention seeks to provides a kind of led light source light mixing method based on ruddiness 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 ruddiness, described led light source is made of white light source and red-light source, the outside uniform white light source of described led light source, the inner uniform red-light source of led light source, described led light source color ratio is: ruddiness R=10%-40%, green glow G=56%-80%, blue light B=1.2%-5%.
Preferably, described red light wavelength is 620-640nm.
The present invention uses the mixed light technology, and color rendering is improved greatly, and the stable color coordinate degree is also very high, and can regulate colour temperature.
Description of drawings
Fig. 1: common white light source test report on the market.
Fig. 2: the test of light source report behind the mixed light of the present invention.
Embodiment
As shown in Figure 1.Test report shows among the figure, and this light source color temperature Tc=4051K colorimetric purity Purity=47.2% 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%, because the disappearance of ruddiness, the green glow ratio is too high, causes the on the low side of color rendering index, colorimetric purity is not high.After we used the method for mixed light, add a certain proportion of ruddiness, color rendering index improved greatly, and colorimetric purity has also improved much.Please see Figure example 2, behind the ruddiness that adds 640nm, color ratio: ruddiness R=24.5% green glow G=73.4% blue light B=2.2%, color rendering index Ra=86.1, colorimetric purity Purity=54.4%. has improved the color rendering index and the colorimetric purity of product by data as can be seen by the method for mixed light.Colour temperature drops to 2841K from original 4051K simultaneously, and this light mixing method can obtain the high-color rendering of any colour temperature section, the LED product of high color purity.
Claims (2)
1. led light source light mixing method based on ruddiness, it is characterized in that described led light source is made of white light source and red-light source, the outside uniform white light source of described led light source, the inner uniform red-light source of led light source, described led light source color ratio is: ruddiness R=10%-40%, green glow G=56%-80%, blue light B=1.2%-5%.
2. the led light source light mixing method based on ruddiness according to claim 1 is characterized in that described red light wavelength is 620-640nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790177A CN101958382A (en) | 2010-09-10 | 2010-09-10 | LED light source mixing method based on red light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102790177A CN101958382A (en) | 2010-09-10 | 2010-09-10 | LED light source mixing method based on red light |
Publications (1)
| Publication Number | Publication Date |
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| CN101958382A true CN101958382A (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102790177A Pending CN101958382A (en) | 2010-09-10 | 2010-09-10 | LED light source mixing method based on red light |
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| CN (1) | CN101958382A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799867A (en) * | 2018-06-27 | 2018-11-13 | 朗昭创新控股（深圳）有限公司 | Fluorescent tube |
| CN111328764A (en) * | 2018-12-18 | 2020-06-26 | 惠州可道科技股份有限公司 | Illumination pig raising method |
-
2010
- 2010-09-10 CN CN2010102790177A patent/CN101958382A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799867A (en) * | 2018-06-27 | 2018-11-13 | 朗昭创新控股（深圳）有限公司 | Fluorescent tube |
| CN111328764A (en) * | 2018-12-18 | 2020-06-26 | 惠州可道科技股份有限公司 | Illumination pig raising method |
| CN111328764B (en) * | 2018-12-18 | 2022-07-12 | 惠州可道科技股份有限公司 | Illumination pig raising method |
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Open date: 20110126 |