Cooling device for reflective liquid crystal image kernel

Details Cooling device for reflective liquid crystal image kernel Cooling device for reflective liquid crystal image kernel

2005-07-26

2005-07-26

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S001000, C349S058000, C362S373000

Reexamination Certificate

active

06922228

ABSTRACT:
A cooling device for a reflective liquid crystal image kernel has an air duct unit on the external case, which is separated into front and rear end ducts and has an axial fan blowing downward. A guide plane has both of its lateral sides aslant downward to guide part of the air flow blown from the axial fan to the split air duct of each light valve on the outer side of the air duct unit to cool the outer surface of three light valves fixed on the outer case of the kernel. The air blown downward from the axial fan passes through the front and the rear air ducts of the air duct unit directly, and passing through the ventilation holes of the external case into the optical components such that a single fan is used to enhance heat dispersion and reduce noise.

REFERENCES:
patent: 6111630 (2000-08-01), Watanuki et al.
patent: 6377318 (2002-04-01), Menard
patent: 6481854 (2002-11-01), Sugawara et al.
patent: 2003/0179591 (2003-09-01), Chou et al.

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