公开(公告)号：US5726719A

公开(公告)日：1998-03-10

申请号：US536815

申请日：1995-09-29

申请人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

发明人： Naoyuki Tanaka ,  Hiroshi Hamada ,  Hiroshi Nakanishi ,  Hideki Ohshima

IPC分类号： G03B33/12 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1335 ,  H04N5/74 ,  H04N9/31

CPC分类号： G02B27/148 ,  H04N9/3108 ,  G02F2001/133623

摘要： The projection-type color display device of the invention includes: a white light source; a splitting means for splitting white light emitted from the white light source into a first, a second, and a third beam having respectively different wavelength regions; a modulation means for modulating the first, the second and the third beams; an irradiation means for irradiating the first, the second and the third beams onto a principal surface of the modulation means at respectively different angles; and a projection means for projecting the first, the second and the third beams modulated by the modulation means. In the projection-type color display device, the first beam includes a color beam having a weakest intensity among the beams in three primary colors contained in the white light; and a direction of the first beam incident onto the principal surface of the modulation means is closer to a normal of the principal surface of the modulation means as compared with the second and the third beams.

摘要翻译： 本发明的投影型彩色显示装置包括：白光源; 分离装置，用于将从白光源发射的白光分成具有不同波长区域的第一，第二和第三光束; 用于调制第一，第二和第三光束的调制装置; 照射装置，用于以不同的角度将第一，第二和第三光束照射到调制装置的主表面上; 以及用于投影由调制装置调制的第一，第二和第三光束的投影装置。 在投影型彩色显示装置中，第一光束包括在白光中包含的三原色的光束中具有最弱强度的彩色光束; 入射到调制装置的主表面上的第一光束的方向与第二和第三光束相比更接近调制装置的主表面的法线。