Blind for a projector

Details Blind for a projector Blind for a projector

2011-01-11

2011-01-11

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Temperature control

C353S055000, C353S056000, C353S057000, C353S058000, C353S060000, C353S061000, C353S062000, C353S119000, C353S122000, C361S679480, C361S679490, C361S695000, C361S703000, C361S704000, C361S700000, C174S015200, C174S016300, C454S184000, C257S712000

Reexamination Certificate

active

07866825

ABSTRACT:
A blind (10) for a projector includes a bracket (20) mounted to the projector, and a folded fin (30) fixed on the bracket and covering a hot air vent of the projector. The folded fin includes a plurality of parallel fins (32) and a plurality of upper and lower tabs (34, 36) interconnecting the fins. Each of the fins defines an angle of 135 degrees with a plane defined by the lower tabs. Furthermore, a projection of each of the fins on the plane defined by the lower tabs overlaps a part of a corresponding adjacent fin. Thus, the blind can prevent a light leakage from the projector, while allow a heated airflow to be expelled out of the projector simultaneously.

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patent: 1661465 (2005-08-01), None
patent: 1220113 (2005-09-01), None

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