Optical device and projector

Optics: image projectors – Polarizer or interference filter

Reexamination Certificate

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Details

C349S005000, C348S750000, C348S758000, C348S759000

Reexamination Certificate

active

06854848

ABSTRACT:
The invention provides a structure to attach a liquid crystal panel to a prism, which enables further enhancements in cooling capabilities. The structure includes a storing member fixed on a base and holding a holding frame, where a liquid crystal panel is held. Erected pieces to form a space to receive the holding frame are formed protruding on both left and right sides at the light incident side. Protrusions to form an air path with a cross-dichroic prism are formed on both left and right sides on the light emitting side. The liquid crystal panel is attached to the cross-dichroic prism through a holding member having an opening at a portion corresponding to the panel face of the liquid crystal panel.

REFERENCES:
patent: 5868485 (1999-02-01), Fujimori et al.
patent: 6053616 (2000-04-01), Fujimori et al.
patent: 0 803 754 (1997-10-01), None
patent: 1 041 828 (2000-10-01), None
patent: 8-304739 (1996-11-01), None
patent: A 10-10994 (1998-01-01), None
patent: 2000-221587 (2000-08-01), None
patent: A 2000-221588 (2000-08-01), None
patent: A 2000-258859 (2000-09-01), None
patent: A 2000-259094 (2000-09-01), None

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