Projector cooling system with time dependent temperature...

Details Projector cooling system with time dependent temperature... Projector cooling system with time dependent temperature...

2011-07-12

2011-07-12

Ko, Tony (Department: 2878)

Optics: image projectors

Temperature control

Blower

C353S052000

Reexamination Certificate

active

07976171

ABSTRACT:
The image projection apparatus includes a temperature detector that detects a temperature inside of the apparatus, and a controller that performs a protection operation when the temperature detected by the temperature detector is higher than a predetermined temperature. The controller measures an elapsed time from when a power of the apparatus is turned on, and changes the predetermined temperature in accordance with the elapsed time. This apparatus can avoid mistaken activation or inactivation of a protection function at the time of re-lighting of the light source due to the influence of the residual heat after the light source is turned off.

REFERENCES:
patent: 6554432 (2003-04-01), Ohfune et al.
patent: 6588907 (2003-07-01), Billington et al.
patent: 6621239 (2003-09-01), Belliveau
patent: 6992811 (2006-01-01), Williams et al.
patent: 7111944 (2006-09-01), Morishita
patent: RE41726 (2010-09-01), Belliveau
patent: 2005/0024600 (2005-02-01), Cole et al.
patent: 2006/0012758 (2006-01-01), Fukano
patent: 2006/0082732 (2006-04-01), Miwa et al.
patent: 2007/0052930 (2007-03-01), Ki
patent: 2008/0225525 (2008-09-01), Wang et al.
patent: 2010/0001943 (2010-01-01), Leo et al.
patent: 1577064 (2005-02-01), None
patent: 2001-021999 (2001-01-01), None
patent: 2001-312000 (2001-11-01), None
patent: 2005-292589 (2005-10-01), None
patent: 2007-101996 (2007-04-01), None
patent: 2007/049659 (2007-05-01), None
European Search Report issued on Feb. 5, 2009 for corresponding European Patent Application No. 08161534.
Office Action issued in corresponding Chinese Patent Application No. 200810145340.8 dated Jul. 24, 2009.

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