Liquid crystal cells – elements and systems – Liquid crystal system – Projector including liquid crystal cell
Patent
1997-07-16
2000-03-21
Sikes, William L.
Liquid crystal cells, elements and systems
Liquid crystal system
Projector including liquid crystal cell
349 5, 349 9, 349 62, 349137, 359580, 359581, G02F 11335, G02B 110
Patent
active
060408812
ABSTRACT:
In a reflection type liquid crystal projector, anti-reflection film optimized for the corresponding color (wavelength band) is formed on each of the light passing surfaces of a cross dichroic prism which are opposed to liquid crystal panels of respective colors and the reflectance of each anti-reflection film is made sufficiently small to thereby enhance the contrast of a colored image projected onto a screen by a projection lens.
REFERENCES:
patent: 4875064 (1989-10-01), Umeda et al.
patent: 4943154 (1990-07-01), Miyatake et al.
patent: 4975328 (1990-12-01), Hirose et al.
patent: 5051652 (1991-09-01), Isomura et al.
patent: 5103327 (1992-04-01), Hirai et al.
patent: 5221982 (1993-06-01), Faris
patent: 5245479 (1993-09-01), Falanga
patent: 5320913 (1994-06-01), Morimoto et al.
patent: 5577826 (1996-11-01), Kasama et al.
patent: 5626409 (1997-05-01), Nakayama et al.
patent: 5654811 (1997-08-01), Spitzer et al.
Chowdhury Tarifur R.
Sikes William L.
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