Cooling system for projection device

Details Cooling system for projection device Cooling system for projection device

2011-08-02

2011-08-02

Le, Que T (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S052000

Reexamination Certificate

active

07988302

ABSTRACT:
A cooling system for cooling down a heat source of a projection device is disclosed. The cooling system includes a fan, and a control module. The control module is configured for supplying a first voltage to the fan for a first duration after the projection device is powered off and a second voltage to the fan for a second duration successive to the first duration. The second voltage is greater than the first voltage.

REFERENCES:
patent: 3138715 (1964-06-01), Walter
patent: 5136397 (1992-08-01), Miyashita
patent: 5860042 (1999-01-01), Tomaru et al.
patent: 2008/0030689 (2008-02-01), Hsu
patent: 2005338213 (2005-12-01), None
patent: 200727118 (2007-07-01), None

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