Brightness and Appearance of Color for RGB LED Illumination

Abstract

Discrete spectrum light sources are expected to become the next generation’s light sources. In this study, we investigated the brightness and appearance of RGB laser illumination, its brightness was 7% higher, and its color appearance was tinged yellowish-green compared with the conventional white LED illumination. In this paper, we verified both the brightness and appearance of color for RGB LED illumination which had a wider half width than that of RGB laser. The results showed that the brightness of RGB LED illumination was 10% higher, and the color appearance was tinged yellowish-green compared with a conventional white LED lamp at the same chromaticity coordinates.