Heat-dissipating device for a projection apparatus

Details Heat-dissipating device for a projection apparatus Heat-dissipating device for a projection apparatus

2006-05-08

2009-10-27

Dowling, William C (Department: 2851)

Optics: image projectors

Temperature control

Heat filter

C362S218000, C362S264000, C362S294000, C362S345000, C362S373000, C362S547000

Reexamination Certificate

active

07607781

ABSTRACT:
A heat-dissipating device includes a receptacle body having a lateral wall formed with an air vent; a lamp unit including a burner, a reflector covered the burner, a glass plate disposed in front of the reflector, the reflector cooperating with the glass plate to define an air inlet adjacent to the air vent and an air outlet spaced from the air vent; a fan unit mounted on the receptacle body for covering the air vent and for generating airflow to flow into the receptacle body; and a nozzle disposed within the receptacle body between the air vent and the lamp unit for guiding the airflow into the lamp unit.

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