A method and system for measuring photochromatic performance of mixed light source display

Abstract

The invention discloses a photochromic performance measurement method for hybrid light source displaying. The photochromic performance measurement method comprises the following steps: measuring a spectrum distribution of three primary colors in detected light; acquiring a light current value corresponding to the detected light through a photoelectric conversion device; acquiring the light power of the three base colors of the detected light according to the light current value and the central wavelengths of the three base colors in the photoelectric conversion device; calculating a spectrum power coefficient of the detected light; calculating a spectrum power distribution of the detected light; acquiring a photochromic performance parameter of the detected light according to the spectrum power distribution of the detected light. The method can be used for measuring the photochromic performance of laser projection displaying and hybrid light source projection displaying. Aiming at the measurement on a laser light source and on the basis of the relatively fixed characteristic of the wavelength of the laser light source, the invention further discloses a mobile single-point measurement system for the photochromic performance of the hybrid light source displaying; no fitting between the spectrum sensitivity of the photoelectric conversion device and a standard color matching curve is needed, so that the detection cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of optical engineering, in particular to a method for measuring light and color properties displayed by a mixed light source and a measurement system thereof. Background technique [0002] Laser display has become one of the most competitive next-generation display devices due to its excellent color expressiveness, and its color gamut coverage can reach more than 150% of the color gamut specified by the NTSC TV standard. [0003] Various types of detection systems and various colorimeters in the prior art, the measurement target is mainly for incoherent light sources, and the color matching function needs to be corrected in the entire visible light spectrum range, thus putting forward high requirements for the detection system. The cost is greatly increased, but the detection accuracy of the laser display performance is not ideal. The detection accuracy of the national first-class illuminance meter is only required t...

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the defect that the laser mixed light source display system cannot be accurately measured in the prior art, and proposes a light color performance measurement method and its measurement system for the mixed light source display to meet the measurement requirements of the laser mixed light source display system. At the same time, the measurement method of the present invention is still applicable to the measurement of display systems that completely use laser light as the light source.

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