Optical device and projector

Details Optical device and projector Optical device and projector

2007-09-18

2007-09-18

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Temperature control

Liquid coolant

C353S052000

Reexamination Certificate

active

11020698

ABSTRACT:
An optical device body (440) includes: three optical modulator holders (446) respectively holding three liquid crystal panels (441) and having cooling chambers with cooling fluid sealed therein to respectively cool the three liquid crystal panels (441) with the cooling fluid in the respective cooling chambers; a plurality of fluid circulators (448) intercommunicated with the three optical modulator holders (446) to guide the cooling fluid to the outside of the respective cooling chambers and re-introduce the cooling fluid into the respective cooling chambers; and a flow volume changer (449) disposed in a flow path of the cooling fluid and capable of changing flow volumes of the cooling fluid flown into the respective optical modulator holders (446) in accordance with heat values of the three liquid crystal panels (441).

REFERENCES:
patent: 2002/0163625 (2002-11-01), Tabuchi et al.
patent: 2002/0191158 (2002-12-01), Koyama et al.
patent: 2004/0233632 (2004-11-01), Chang
patent: 2006/0191677 (2006-08-01), Viczena
patent: A 01-159684 (1989-06-01), None
patent: A 03-174134 (1991-07-01), None
patent: A 2002-268038 (2002-09-01), None
patent: A 2002-357865 (2002-12-01), None
patent: WO 02/19027 (2002-03-01), None

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