Projection type display apparatus and lamp cooling apparatus

Details Projection type display apparatus and lamp cooling apparatus Projection type display apparatus and lamp cooling apparatus

2007-07-03

2007-07-03

Perkey, W. B. (Department: 2851)

Optics: image projectors

Temperature control

Blower

C353S060000, C353S097000, C348S748000

Reexamination Certificate

active

10887385

ABSTRACT:
In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fans3and4which are disposed on a front side of the lamp mounted with a heat sink1rotate, external air of ordinary temperature is taken inlet and guided into ducts5and6so as to be blown onto the front face of the lamp by means of the fans3and4. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.

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