Method and system for calibrating brightness and chrominance meter

Abstract

The invention discloses a method for calibrating a chromaticity meter, comprising: measuring a preset auxiliary light source, obtaining a measured brightness value and a measured chromaticity value of the auxiliary light source; calculating the measured brightness value of the auxiliary light source and the measured brightness value of the auxiliary light source The luminance value conversion relationship between the luminance values ​​of the auxiliary light source and the chromaticity value conversion relationship between the measured chromaticity value of the auxiliary light source and the chromaticity value of the auxiliary light source; measure the measured object, and obtain the measured object’s Measure the brightness value and the measured chromaticity value; calculate the brightness value of the measured object according to the measured brightness value of the measured object and the conversion relationship of the brightness value; The chromaticity value of the measured object is obtained by calculating the chromaticity value conversion relationship. Correspondingly, a calibration system for the brightness and colorimeter is also provided. The invention does not need to send the chromaticity meter to the instrument calibration institution for professional calibration, does not affect the work progress, has high measurement accuracy, is fast and practical.

Description

technical field [0001] The invention relates to the technical field of brightness and colorimeter calibration, in particular to a method for calibrating a brightness and colorimeter and a calibration system for a brightness and colorimeter. Background technique [0002] With the prolongation of the use time, the measurement accuracy of the brightness and colorimeter will decrease. Therefore, the brightness and colorimeter needs to be calibrated regularly to standardize its test parameters so that it can work in a stable state and ensure the measurement accuracy. Generally, the calibration of the brightness and colorimeter needs to be regularly sent to a special instrument calibration organization for professional calibration. [0003] However, in actual operation, due to work needs, the brightness and colorimeter is generally installed on a fixed bracket. When the brightness and colorimeter is sent to a special institution for calibration or calibration, the instrument needs...

AI Technical Summary

Problems solved by technology

[0003] However, in actual operation, due to work needs, the brightness and colorimeters are generally installed on fixed brackets. When the brightness and colorimeters are sent to special institutions for calibration or calibration, the instrument needs to be disassembled, and the installation accuracy is difficult to guarantee when reinstalling.

[0004] In addition, the brightness and colorimeter needs to be used continuously for a long time, or if it is used quite frequently, if it is regularly sent to a special instrument calibration organization to calibrate the brightness and colorimeter, the normal work will be delayed; but if regular calibration is not performed, then The long-term use of the brightness and colorimeter has a large error, which will affect the measurement accuracy

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