Digital projector control method and apparatus

Details Digital projector control method and apparatus Digital projector control method and apparatus

2006-05-02

2006-05-02

Perkey, W. B. (Department: 2851)

Optics: image projectors

Temperature control

C353S057000, C353S121000, C349S072000

Reexamination Certificate

active

07036939

ABSTRACT:
A method and apparatus to control a digital projector. After receiving a turn-on request, the temperature associated with the light source is sensed and compared to a predetermined threshold. If the temperature is below the threshold, then the digital projector's light source is turned on. Otherwise, if the temperature is not below the threshold, the digital projector's cooling device is turned on and the turning on of the light source is delayed until the temperature falls below the threshold. After receiving a turn-off request, the cooling device is turned off coincident with the light source and without regard to the light-source temperature.

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