A new color wheel and color temperature matching method for laser projectors

Abstract

The invention relates to a novel laser projector color wheel and color temperature matching method. The method comprises the following steps of determining the corresponding angle and the corresponding output luminance of the fluorescent wheel of a laser light source; selecting green wave bands and red wave bands; selecting the angles of red pieces from yellow pieces, and ensuring R / W>=14%; according to CIE1931 (Commission Internationale Ed I'eclairage) chromaticity coordinates and the tristimulus-value X.Y.Z conversion formula, computing white coordinates; according to the CIE1931 chromaticity coordinates and the color temperature conversion formula, computing color temperature and enabling the color temperature to meet 6000-7000 K. The novel laser projector color wheel and color temperature matching method achieves high color wheel efficiency and good color display effects.

Description

technical field [0001] The invention relates to a color wheel and color temperature matching method of a projector, in particular to a laser projector color wheel and color temperature matching method. Background technique [0002] At present, the light source of most projectors is mercury lamp light source. The output of mercury lamp is continuous, and the color wheel is used for color separation. At a certain moment, only the spectral band corresponding to the color wheel will pass through, and the rest of the band All the energy is lost, and the efficiency will be very low, basically around 40%. A small number of projectors use laser light sources as the light source. For laser light sources, its output is segmented through the fluorescent wheel, which is discontinuous light. There is only one color output at a certain time, and the corresponding color wheel also needs to match the same color. , or other colors can be separated from this color, but there are problems suc...

AI Technical Summary

Problems solved by technology

[0002] At present, the light source of most projectors is mercury lamp light source. The output of mercury lamp is continuous, and the color wheel is used for color separation. At a certain moment, only the spectral band corresponding to the color wheel will pass through, and the rest of the band The energy is lost, the efficiency will be very low, basically around 40%

A small number of projectors use laser light sources as the light source. For laser light sources, its output is segmented through the fluorescent wheel, which is discontinuous light. There is only one color output at a certain time, and the corresponding color wheel also needs to match the same color. , or other colors can be separated from this color, but there are problems such as unsatisfactory display effect

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