200 inches fuel color laser projection display

被引：12

作者：

Hwang, Y ^{[1
]}

Lee, J ^{[1
]}

Park, Y ^{[1
]}

Park, J ^{[1
]}

Cha, S ^{[1
]}

Kim, Y ^{[1
]}

机构：

[1] Samsung Adv Inst Technol, Suwon 440600, Kyung Ki Do, South Korea

来源：

PROJECTION DISPLAYS IV | 1998年 / 3296卷

关键词：

laser projection display; white laser; acousto-optic modulators; dichroic mirrors; polygon minor;

D O I：

10.1117/12.305520

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 200 inches large-area laser projection display is presented. The laser light processor is mainly composed of a white laser for light source, acousto-optic modulators and the laser beam scanner composed of a galvanometer and a polygon scan mirror. The white light source is a Krypton-Argon laser with main wavelengths 647nm, 515nm, 488nm, respectively. Collimated and focused laser beams are modulated at acousto-optic modulators(AOMs) according to the video signals. Dichroic mirrors are used for separating the white laser beam to red, green, blue light beams and recombining the modulated red, green, blue light beams to one light beam. Recombined laser beam is vertically scanned by a galvanometer running at 60Hz rate and horizontally scanned by the 24 facet polygon scan mirror rotating at the speed of 39,375rpm. Between the polygon scan mirror and the galvanometer, relay lenses are inserted for which horizontally scanned bean is focused onto the galvanometer mirror facet. The size of 4m x 3m(200 inches) image with high resolution is obtained at the throw distance of 7m using 4W white light.

引用

页码：116 / 125

页数：10