Laser light source projector with high brightness and ultra-short throw distance

Abstract

We have developed laser light source projector with high brightness and ultra-short throw distance, making full use of the advantages of laser such as high luminance, small etendue and high color purity. Brightness of 7,000lm, throw distance of 60cm at 100 inch image size, and color gamut of 170% compared with NTSC are achieved. High visibility by high luminance, convenience of installation by ultra-short throw distance, and vivid image by high color reproduction enable variable application of the projector. In this paper, we describe our original developed technology such as triple-rod illumination optical system, ultra-short projection optical system, and laser color processing.