Projector

Details Projector Projector

2009-06-11

2011-11-08

Dowling, William C (Department: 2878)

Optics: image projectors

Housing

C353S098000

Reexamination Certificate

active

08052288

ABSTRACT:
A projector includes: a light source device; an optical modulation device; a projection optical device; and an exterior casing, wherein a luminous flux passage opening for allowing the image light projected magnified from the projection optical device to pass through is formed in a first surface of the exterior casing, the projection optical device includes an aspheric mirror which reflects the image light to the first surface side, and magnifies and projects the image light via the luminous flux passage opening, and the exterior casing is provided with a transmissive member which closes the luminous flux passage opening; and a cover which, being movably attached to the first surface, moves between a closed position in which the transmissive member is covered and an open position in which the transmissive member is exposed.

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Hitachi, Ltd, “Projector CP-A100 User's Manual (detailed) Operating Guide”, Chapter 1, pp. 1-75, Japan.

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