Overheat prevention device

Details Overheat prevention device Overheat prevention device

2011-06-28

2011-06-28

Epps, Georgia Y (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S057000, C348S748000

Reexamination Certificate

active

07967447

ABSTRACT:
An overheat prevention device comprises an inclination angle detector, a cooling module, and a control circuitry. The inclination detector is adapted to detect a first inclination angle and a second inclination angle, which an light source module is subject to relative to a reference plane, and transmit a first inclination signal and a second inclination signal, respectively. In response to the first inclination signal, the control circuitry alters the cooling module from a first operation mode to a second operation mode. In response to the second inclination signal, the control circuitry alters a projection apparatus from the first operation mode to the second operation mode.

REFERENCES:
patent: 6520647 (2003-02-01), Raskar
patent: 6686973 (2004-02-01), Su
patent: 2004/0135977 (2004-07-01), Ito et al.
patent: 2005/0200816 (2005-09-01), Hsu
patent: 2006/0066816 (2006-03-01), Horiguchi et al.

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