Design of illumination and projection optics for projectors with single digital micromirror devices

被引：40

作者：

Chang, CM ^{[1
]}

Shieh, HPD ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 30050, Taiwan

来源：

APPLIED OPTICS | 2000年 / 39卷 / 19期

关键词：

D O I：

10.1364/AO.39.003202

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a new optical system design for a projector with a single digital micromirror device (Texas Instruments Digital Micromirror Device) that improves on previous designs in terms of optical efficiency, uniformity, and contrast while yielding a low-profile and compact system. A rod integrator is incorporated with a compact relay system to maximize light efficiency and to increase illumination uniformity. The uniformity achieved by the optimized optical system was calculated to he 94%. In addition, this unique light-separator design has dual output channels to increase the image contrast by steering the off-state light away from the projection lens. This projector design provides very efficient light utilization, and we discuss how the geometrical optical efficiency of the system can be boosted to approach the theoretical maximum. (C) 2000 Optical Society of America. OCIS codes: 080.2740, 080.3620, 220.2740, 220.3620, 120.2040, 230.6120.

引用

页码：3202 / 3208

页数：7

共 18 条

[1]

ALT PM, 1997, P INT DISPL RES C WO, P19

[2]

[Anonymous], SID 91 INT S SOC INF

[3] Light collection efficiency for light valve projection systems [J].

Brennesholtz, MS .

PROJECTION DISPLAYS II, 1996, 2650 :71-79

[4]

BURSTYN HC, 1994, SID 94 INT S DIG TEC, P677

[5]

CHANG CM, 1996, P 16 INT DISPL RES C, P257

[6] Digital Light Processing(TM) for high-brightness, high-resolution applications [J].

Hornbeck, LJ .

PROJECTION DISPLAYS III, 1997, 3013 :27-40

[7]

ITOH Y, 1997, SID 97, P993

[8]

Kudo Y., 1990, U.S. Patent, Patent No. [4,918,583, 4918583]

[9]

Lin K. W., 1998, U.S. Patent, Patent No. [5 748 376, 5748376]

[10]

MOSS GH, 1996, SID 96 INT S DIG TEC, P907

← 1 2 →