Projection type display apparatus

Details Projection type display apparatus Projection type display apparatus

2008-05-27

2008-05-27

Sever, Andrew T (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S020000, C348S752000

Reexamination Certificate

active

07377655

ABSTRACT:
A projection type display apparatus includes: a reflection type light valve; a polarization beam splitter that emits light obtained through polarization split executed thereat on light from a light source toward the reflection type light valve, analyzes light modulated at the reflection type light valve and includes a light blocking portion disposed near an outer edge of an exit surface through which the analyzed light exits; and a projection lens through which the analyzed light is projected.

REFERENCES:
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patent: 6299312 (2001-10-01), Choi et al.
patent: 6588905 (2003-07-01), Sekine
patent: 6908197 (2005-06-01), Penn
patent: 2002/0051094 (2002-05-01), Makita
patent: 2002/0097382 (2002-07-01), Suzuki et al.
patent: 2003/0202129 (2003-10-01), Sekine et al.
patent: 11-38365 (1999-02-01), None
patent: 2000-330196 (2000-11-01), None
patent: 2004-29692 (2004-01-01), None

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