公开(公告)号：DE69611563T2

公开(公告)日：2001-06-21

申请号：DE69611563

申请日：1996-02-13

Applicant: IBM

Inventor： CHIU GEORGE L ,  CIPPOLA THOMAS M ,  DOANY FUAD E ,  DOVE DEREK B ,  ROSENBLUTH ALAN E ,  SINGH RAMA N ,  WILCZYNSKI JANUSZ S

IPC: G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  H04N5/74 ,  H04N9/31

Abstract: An optical system is described consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display. The system includes a quarter wave plate positioned to suppress stray reflection from the projection lens. The system also includes a second quarter wave plate disposed on the screen and a polarizing film disposed on the second quarter wave plate to suppress ambient light from illuminating the screen and entering the system.

公开(公告)号：DE69611563D1

公开(公告)日：2001-02-22

申请号：DE69611563

申请日：1996-02-13

Applicant: IBM

Inventor： CHIU GEORGE L ,  CIPPOLA THOMAS M ,  DOANY FUAD E ,  DOVE DEREK B ,  ROSENBLUTH ALAN E ,  SINGH RAMA N ,  WILCZYNSKI JANUSZ S

IPC: G02F1/13 ,  G02F1/1335 ,  G03B21/00 ,  H04N5/74 ,  H04N9/31

Abstract: An optical system is described consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display. The system includes a quarter wave plate positioned to suppress stray reflection from the projection lens. The system also includes a second quarter wave plate disposed on the screen and a polarizing film disposed on the second quarter wave plate to suppress ambient light from illuminating the screen and entering the system.