White balance tester with color sensor for industrial applications

Jiasheng Chen; XiaoSong Zhu

doi:10.1117/12.263018

31 December 1996 White balance tester with color sensor for industrial applications

Jiasheng Chen, XiaoSong Zhu

Proceedings Volume 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96); (1996) https://doi.org/10.1117/12.263018
Event: International Conference on Holography and Optical Information Processing, 1996, Nanjing, China

Abstract

The white balance tester is an instrument that adjusts the white balance for color TVs, monitors, and PC displays. We have designed a new white balance tester for use directly at the production line. It picks up the R (Red), G (Green), and B (Blue) signals for the screen using color sensors, compares the signals with the data previously stored in the internal memory, displays their differences with LED bars in the compare mode or displays x y Y, u v Y, JND (just noticeable difference) as well as correlated color temperature in the numerical mode. A built-in TV signal generator sets the luminance of the adjusting screen to the brightness of the reference white screen automatically. A 16-bit single chip microcomputer processes the measured values and controls the output levels of the TV signal generator.

Citation Download Citation

Jiasheng Chen and XiaoSong Zhu "White balance tester with color sensor for industrial applications", Proc. SPIE 2866, International Conference on Holography and Optical Information Processing (ICHOIP '96), (31 December 1996); https://doi.org/10.1117/12.263018

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