Projection display apparatus

Details Projection display apparatus Projection display apparatus

2005-01-18

2005-01-18

Ben, Loha (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

C359S634000, C353S030000, C353S031000, C353S119000, C349S005000, C349S058000, C349S137000

Reexamination Certificate

active

06844979

ABSTRACT:
A projection display apparatus in which a light emitted from a reflective light valve is made incident on a prism member and a light having passed through the prism member is projected by a projection lens, comprises a dust proofing cover that provides a seal between an emergence surface of the reflective light valve and an incidence surface of the prism member.

REFERENCES:
patent: 6530665 (2003-03-01), Takizawa et al.
patent: 6669344 (2003-12-01), Ishii
patent: 20030223045 (2003-12-01), Saitoh
patent: 10-133301 (1998-05-01), None

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