Light processing module with a dust protection member for a...

Details Light processing module with a dust protection member for a... Light processing module with a dust protection member for a...

2006-11-07

2006-11-07

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Housing

C353S020000, C349S058000

Reexamination Certificate

active

07131738

ABSTRACT:
A light processing module includes a light modulator with a liquid crystal panel, and a dust protection member. The dust protection member includes a base frame, and first and second frame elements. The base frame has a color separator mounted therein. The light modulator is mounted spacedly on a component mounting side of the base frame. The first frame element is disposed between the light modulator and the component mounting side, and has a frame opening to receive the liquid crystal panel. The second frame element is disposed between the first frame element and the component mounting side, and has a frame opening to receive a wave plate. The dust protection member permits formation of a dustproof chamber between the liquid crystal panel and the wave plate, and adjustment of the wave plate relative to the color separator.

REFERENCES:
patent: 5327270 (1994-07-01), Miyatake
patent: 6530665 (2003-03-01), Takizawa et al.

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