Liquid crystal projector

Details Liquid crystal projector Liquid crystal projector

2006-01-31

2006-01-31

Koval, Melissa J. (Department: 2851)

Optics: image projectors

Temperature control

Liquid coolant

C353S020000, C353S057000, C353S060000, C353S061000, C353S119000

Reexamination Certificate

active

06991335

ABSTRACT:
In order to perform high efficient cooling without boiling cooling liquid and to improve maintainability such as replacement of a lamp, the present invention provides a liquid crystal projector including a light source lamp, a liquid crystal panel, a power source, a fan for removing heat generated by the power source and the lamp, a water-cooling jacket provided on an inner surface of an external wall portion opposed to the lamp in the liquid crystal projector, a metal pipe arrangement for radiation which is placed in the external wall portion, and a pump for driving cooling liquid to flow in the water-cooling jacket so that the cooling liquid receiving the heat from the lamp circulates in a circulation path through the water-cooling jacket, the metal pipe arrangement, and the pump to emit the heat to the outside through the metal pipe arrangement.

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