Method and system for determining maximum brightness of RGB LED light source matching target chromaticity

A technology of LED light source and maximum brightness, applied in electrical components and other directions, can solve the problems of RGBLED light source unable to mix light, unable to determine the mixing ratio of RGBLED light source, low dimming efficiency, etc., to reduce the number of debugging, improve accuracy, The effect of improving dimming efficiency
CN110677955AActive Publication Date: 2020-01-10苏州欧切斯实业有限公司
9 Cites 11 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州欧切斯实业有限公司
Publication Date
2020-01-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a method and a system for determining maximum brightness of RGB LED light source matching target chromaticity. The method comprises the following steps: acquiring target chromaticity data; obtaining absolute tristimulus values of R, G and B color LED light sources at their maximum control signal values; establishing a mixed light equation group according to the relationshipbetween the target chromaticity and the absolute tristimulus values, and solving the mixed light equation group according to the obtained target chromaticity data and the absolute tristimulus values so as to obtain normalized brightness matching coefficients of R, G and B color LEDs; and calculating the maximum brightness matching coefficient according to the normalized brightness matching coefficient and obtaining the maximum achievable brightness value when the RGB LED light source matches the target chromaticity according to the maximum brightness matching coefficient and the Y stimulationvalue in the obtained absolute tristimulus values. The problem that the RGB LED light source cannot mix light due to exceeding the maximum brightness during dimming can be effectively avoided by determining the maximum brightness which can be achieved by the RGB LED light source when matching the target chromaticity.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present disclosure relates to the technical field related to LED lighting, in particular, to a method and system for determining the maximum brightness of an RGB LED light source matching a target chromaticity. Background technique

[0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

[0003] The outstanding advantages of LED light sources over traditional lighting sources, such as higher efficiency, energy saving, longer life, and convenient dimming, have made them widely used in many fields. In the field of general lighting, white light is usually used for lighting. Through the light mixing of multi-color LED light sources, and by adjusting the proportion of LEDs of various colors, the target light color can be obtained to meet people's lighting needs.

[0004] RGB LED light source is a typical white light realization method. Compared with t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More