Projector cooling system

Details Projector cooling system Projector cooling system

1997-04-14

1998-04-14

Dowling, William

Optics: image projectors

Temperature control

Blower

353 60, G03B 2116

Patent

active

057384274

ABSTRACT:
The present invention includes a projector illumination system having a light source positioned between a condenser lens and a light-collecting reflector. The light source includes a bulb that is urged under compression against a surface of the condenser lens. The condenser lens receives a flow of cooling air over a surface opposite that against which the light source is in contact to minimize deformation of the condenser lens caused by heat emanating from the light source.

REFERENCES:
patent: 2033619 (1936-03-01), Foster et al.
patent: 2818771 (1958-01-01), Armbruster
patent: 3250175 (1966-05-01), Braun
patent: 4023893 (1977-05-01), Herbert et al.
patent: 4943156 (1990-07-01), Vanderwetf
patent: 5287132 (1994-02-01), Suzuki et al.
patent: 5400094 (1995-03-01), Eckhardt

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