发明名称 Projection type display apparatus
摘要 This specification discloses a projection type display apparatus in which the lights of a plurality of display means forming images of different color component lights are reflected by or transmitted through a dichroic mirror to effect color synthesis and the synthesized lights are projected onto a screen by a projection lens. The astigmatism created by the lights being transmitted through the obliquely disposed dichroic mirror is suppressed to thereby obtain a good quality of image.
申请公布号 US5231431(A) 申请公布日期 1993.07.27
申请号 US19900619514 申请日期 1990.11.29
申请人 CANON KABUSHIKI KAISHA 发明人 YANO, KOUTARO;KITAGISHI, NOZOMU
分类号 H04N9/31 主分类号 H04N9/31
代理机构 代理人
主权项
地址