Optics: image projectors – Composite projected image – Multicolor picture
Patent
1989-11-30
1990-11-20
Cuchlinski, Jr., William A.
Optics: image projectors
Composite projected image
Multicolor picture
353 37, 353 98, 353122, G03B 2128
Patent
active
049714368
ABSTRACT:
In projection device light from a point light source unit is reflected by a first reflecting mirror to produce parallel rays, which are applied to a color active matrix liquid crystal display unit. The parallel rays having passed through the liquid crystal display unit are converted by a second reflecting mirror into a bundle of rays of a desired solid angle for projection onto a screen.
REFERENCES:
patent: 3762207 (1973-10-01), Weiser
patent: 4127322 (1978-11-01), Jacobson
patent: 4606613 (1986-08-01), Urabe
patent: 4653867 (1987-03-01), Urabe et al.
patent: 4716403 (1987-12-01), Morozumi
patent: 4722593 (1988-02-01), Shimazaki
patent: 4826311 (1989-05-01), Ledebuhr
patent: 4838654 (1989-06-01), Hamaguchi et al.
patent: 4855724 (1989-08-01), Yang
Aoki Shigeo
Ukai Yasuhiro
Cuchlinski Jr. William A.
Dowling William C.
Hosiden Electronics Co. Ltd.
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