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High color saturation white LED lighting system and its color mixing design method

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

Active Publication Date: 2017-07-07
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 LED lighting system and its color mixing design method
  • High color saturation white LED lighting system and its color mixing design method
  • High color saturation white LED lighting system and its color mixing design method

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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 CIE 1931 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 i...

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Abstract

The invention belongs to the technical field of semiconductor lighting, in particular to a high color saturation white LED lighting system and a color mixing design method thereof. Compared with conventional LED lighting systems, the white LED lighting system obtained by color mixing in the present invention has a high full color gamut index (GAI) while maintaining the same color temperature (CCT) and the same color rendering index (CRI). Illuminating an object with a white LED with a high full color gamut index can significantly enhance the color saturation of the illuminated object, make the color of the illuminated object more vivid, and improve people's preference and love for the illuminated object. The color mixing design method of high color saturation white LEDs of the present invention is used in the design of white LED lighting systems, and can obtain a color temperature adjustment range of 2000−10000 K and a full color gamut index GAI≥100. The color mixing design method of the present invention establishes the curvilinear relationship between the ratio of red, green, and blue light (RGB) to the color rendering index and the full color gamut index, and provides a new way for the realization of high-quality intelligent lighting.

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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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H05B33/08G06F19/00H05B44/00
CPCY02B20/30
Inventor 冯祥芬韩秋漪张善端
Owner FUDAN UNIV
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