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Method for optimizing spectrum of multi-light-color LED

An optimization method and multi-color technology, applied in the field of lighting, can solve the problems of not considering the light reflection efficiency of objects, and the quantification of light and color effects.

Active Publication Date: 2015-12-09
SHENZHEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is no quantification of light and color effects, no consideration of the efficiency of reflected light from objects, and no systematic optimization model scheme for multi-color LEDs

Method used

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  • Method for optimizing spectrum of multi-light-color LED
  • Method for optimizing spectrum of multi-light-color LED
  • Method for optimizing spectrum of multi-light-color LED

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: Select four single-chip LEDs to synthesize a multi-color LED light source with a color temperature of 4000K. Four single-chip LEDs include red, amber, green, and blue LEDs with spectral energy distributions such as figure 2 As shown, the corresponding chromaticity values ​​are as image 3 As shown, where point X is the intersection point of chromaticity, and the corresponding chromaticity point of 4000K color temperature is located on the Planck curve. In the light color mixing, the proportion of LEDs of each light color is linear. If the proportion of LEDs of a certain light color is t, the proportion of LEDs of each light color can be expressed as k i t+b(i=1,2,3,4), where k i is the slope, b i is a constant, and t is an unknown number. Here, if the proportion of amber LEDs is t, each single-chip LED is in a linear proportion, such as Figure 4 As shown, the proportion of each single chip is shown in the following formula.

[0054] ...

Embodiment 2

[0056] Embodiment 2: according to the white paper reflectance of reading works such as books, newspapers, (usually the white paper reflectance can be regarded as 1, if not 1, then measure its spectral reflectance curve), carry out multi-color LED spectrum optimization, make the paper It reflects a comfortable light color; while the characters are generally black or a highly saturated color, and the change is relatively small. So as to achieve the purpose of improving reading comfort.

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Abstract

The invention discloses a method for optimizing a spectrum of a multi-light-color LED. The method comprises the following steps 1, 2, 3 and 4 or 1, 5, 6 and 7 of: step 1, carrying out a method for mixing light colors of the spectrum of the multi-light-color LED; step 2, selecting and computing a synthetic chromaticity of the multi-light-color LED; step 3, computing spectral reflection efficiency of the multi-light-color LED; step 4, computing a light color effect of the multi-light-color LED after irradiating an object; step 5, selecting fitting chromaticity of the multi-light-color LED after irradiating the object; step 6, computing the light color effect of the of the multi-light-color LED; and step 7, computing the spectral reflection efficiency of the multi-light-color LED. According to the method, the spectral reflection efficiency and the light color effect are improved by virtue of a spectral optimization technology; and the method is applicable to landscape lighting, scene lighting, commercial lighting and certain functional lighting occasions and the like.

Description

technical field [0001] The invention relates to the field of lighting technology, in particular to a method for optimizing the spectrum of multi-color LEDs. Background technique [0002] Due to its spectral flexibility, LEDs can be combined into light sources of various types of light colors. Multi-color LEDs can be combined in different ways, including LEDs combined with multiple chips, LEDs with different light colors mixed based on phosphor powder, and other ways. Multi-chip LED itself has advantages in spectral selectivity, control flexibility, efficiency, etc. With the improvement of chip technology and control technology, multi-chip LED will be more used in lighting. Phosphor-based LEDs are less flexible than multi-chips, but their stability is better. [0003] When irradiating colored objects, the application of multi-color LEDs can not only change the light color of the light source itself, but also change the light color after irradiating the object, and the corre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 姚其
Owner SHENZHEN UNIV
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