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High color saturation white light LED illumination system and mixed color design method thereof

A technology of LED lighting and design methods, which is applied in lighting devices, light sources, computing, etc., can solve the problems of few research reports, achieve good visual effects, improve preference and liking, and achieve consistent light and color parameters

Active Publication Date: 2015-12-16
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few research reports on how to design the light distribution of LEDs and improve the GAI index.

Method used

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  • High color saturation white light LED illumination system and mixed color design method thereof
  • High color saturation white light LED illumination system and mixed color design method thereof
  • High color saturation white light LED illumination system and mixed color design method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. The described embodiments are only some of the embodiments of the invention. All other embodiments without creative achievements based on the embodiments of the present invention belong to the protection scope of the present invention.

[0028] The present invention mixes the three primary colors RGB with white LEDs of any color temperature to obtain a white LED lighting system with a high full color gamut index. The specific color mixing design method includes the following steps:

[0029] Step 1: Set the color temperature required by the white LED lighting system, and then obtain the required color coordinate points (x, y) in the CIE1931 color gamut space, and convert them into three-point coordinates (X, Y, Z);

[0030] Step 2: Select the three primary colors (RGB) red LED, yellow-green LED, blue LED and phosphor-converted white LED to match color in...

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PUM

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Abstract

The invention belongs to the semiconductor illumination technology field and particularly relates to a high color saturation white light LED illumination system and a mixed color design method thereof. Compared with routine LED illumination systems, on the condition of common color temperature (CCT) and common color rendering index (CRI), the mixed color white light LED illumination system has a higher gamut area index (GAI). A white light LED illumination object having high gamut area index is utilized, color saturation of an illuminated object can be substantially improved, color of the illuminated object is more brilliant, and preference and fondness of the illuminated object are improved for people. The high color saturation white light LED mixed color design method is for design of the white light LED illumination system, a color temperature adjustment scope 2000-10000K can be acquired, and the gamut area index (GAI) is greater than or equal to 100. Through the mixed color design method, a curve relation among red, green and blue (RGB) light proportions, a color rendering index and the gamut area index (GAI) is established, and thereby a new approach is provided for realization of high-quality intelligent illumination.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lighting, and in particular relates to a high color saturation white LED lighting system and a color mixing design method thereof. Background technique [0002] Light quality has been paid more and more attention by people, especially for indoor lighting, such as shopping malls, retail stores, hotels, museums, homes and other indoor spaces, the requirements for light quality are far greater than the requirements for light efficiency. The lighting system will affect the visual experience of the illuminated object. Many times, users and consumers pay more attention to the visual effect of the object, such as whether the color is colorful and attractive. Therefore, the color of the illuminated object is an important indicator to measure the quality of the light source. At present, there are many studies on dimming and color adjustment, but most of them only focus on improving the color renderi...

Claims

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Application Information

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IPC IPC(8): H05B37/02G06F19/00H05B44/00
CPCY02B20/30
Inventor 冯祥芬韩秋漪张善端
Owner FUDAN UNIV
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