Lamp cooling arrangement for cinema projectors

Details Lamp cooling arrangement for cinema projectors Lamp cooling arrangement for cinema projectors

2006-09-15

2010-06-08

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S061000, C362S345000, C362S294000

Reexamination Certificate

active

07731368

ABSTRACT:
In a projector assembly having a lamp for emitting light, and an ellipsoid reflector for capturing the light, the ellipsoid reflector having an opening through its vertex facilitating placement of the lamp, there is provided an improvement wherein the opening in the ellipsoid reflector is sized to allow a major portion of cooling air to pass therethrough into a region defined by the ellipsoid reflector. An air deflector is situated in the opening so as to facilitate distribution of cooling air along the lamp and outwardly towards the inside surface of said ellipsoid reflector from within said region.

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