Optics: image projectors – Cabinet encloses projector and one side of screen – Reflector between lamp and screen
Reexamination Certificate
2005-03-22
2005-03-22
Nguyen, Judy (Department: 2851)
Optics: image projectors
Cabinet encloses projector and one side of screen
Reflector between lamp and screen
C353S119000, C353S074000, C359S460000, C348S787000
Reexamination Certificate
active
06869188
ABSTRACT:
A projection display device that is more compactly composed as compared with a conventional device by reducing the total width of a device, that is, the length between the rear of outer case and screen. The projection display device comprises an optical engine for projecting a light beam; a projection lens for magnifying and projecting the light beam projected by the optical engine; a reflection mirror for reflecting the light beam, magnified and projected through the projection lens, on the full screen of a screen; a screen for realizing an image using the light beam reflected by the reflection mirror; and a lower cabinet for supporting the screen, wherein a part of the optical engine mounted in the lower cabinet is protruded by a predetermined length in front as compared with the screen.
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Cha Young Chuel
Hwang Kyong Soo
Birch & Stewart Kolasch & Birch, LLP
LG Electronics Inc.
Nguyen Judy
Sever Andrew
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