Research on Color Vision Anomaly Under Light Source of Color LEDs

Abstract

Under light sources with different spectral composition, human eye has different visual perceptions of colors, which has a great impact on high fidelity reproduction of colors under special environmental conditions. To explore effects of different common color LEDs on color perception of human eye, we conducted a color identification experiment by using 4 common color light-emitting diodes as a light source. CIEDE2000 was used to calculate color difference between color perceived by human eye under color LED light source and standard light source. Also, subjective evaluation of color perception difference was given by experiment participants. The results show that the color difference between yellow and green LED sources and standard light source is generally smaller than that of the red and blue LED sources. And this difference is not constant, it will decrease as observation time increases. The study of human visual characteristics under different color LED sources provides a theoretical supplement for high-fidelity reproduction of images under special spectral light sources.