Method for making mixed color fall on reflection blackbody line and light source made through method

Abstract

The invention provides a method for making a mixed color fall on a reflection blackbody line. The method comprises the following steps that a, a cold white light source, a warm white light source anda green light source are provided, wherein the chromaticity coordinate of the green light source is located above the reflection blackbody line, and the chromaticity coordinates of the cold white light source and the warm white light source are located below the reflection blackbody line; b, the chromaticity coordinates of the cold white light source, the warm white light source and the green light source on a chromaticity diagram are measured so as to obtain a 3*3 matrix, wherein each row of the matrix represents the chromaticity coordinate of any one of the cold white light source, the warmwhite light source and the green light source on the chromaticity diagram; and c, matrix inverse operation is conducted on the 3*3 matrix according to the chromaticity coordinate of a target position,so that the matching ratio of the cold white light source to the warm white light source to the green light source is obtained. The invention further provides a light source made through the method for making the mixed color fall on the reflection blackbody line.

Description

technical field [0001] The invention relates to the field of illumination optics, in particular to a method for making mixed colors fall on a reflecting black body line and a light source made by the method. Background technique [0002] In the field of lighting optics, color coordinates and color temperature are two common physical quantities used to represent the color of light. Color coordinates are used to accurately express the apparent color of a light source. However, since it is difficult to link the specific color coordinate value with the habitual feeling of light color, people also use color temperature to express light color. Color temperature means that when a standard black body is heated to a temperature, and the color of the light emitted by it is the same as that emitted by a certain light source, the temperature at which the black body is heated is called the color temperature of the light source, and its unit is "K". express. figure 1 The CIE 1931 chrom...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method are: the color temperature is not accurate, and it will be reddish or greenish on the reflected black body line

Therefore, there will be situations where it cannot be guaranteed that the mixed light is on the reflected black body line

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