Projection-type display apparatus

Details Projection-type display apparatus Projection-type display apparatus

2011-06-07

2011-06-07

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S085000, C353S052000, C353S060000, C348S748000

Reexamination Certificate

active

07954956

ABSTRACT:
A projection-type display apparatus includes an optical modulation device having a lamp emitting a light, and a projection optical system projecting the light on a screen in a magnified form, with the projection optical system including a plurality of reflection mirrors. In addition, a fan system air-cools reflective surfaces of the plurality of reflection mirrors. The fan system includes a fan and a controller for controlling the fan based on luminance output of the lamp.

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Translation (abstract) of JP 63-284501 A, Atsuta et al., Nov. 21, 1988.

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