Optical device and projector

Details Optical device and projector Optical device and projector

2007-05-15

2007-05-15

Koval, Melissa Jan (Department: 2851)

Optics: image projectors

Temperature control

Liquid coolant

C353S061000

Reexamination Certificate

active

11089372

ABSTRACT:
An optical device capable of efficiently cooling a light modulation element and preventing deterioration in an image formed on the optical modulation element having a light modulation device. The light modulation device includes a light modulation element to modulate a luminous flux and to form an optical image; and a support frame to hold the light modulation element, the support frame having an aperture for an image-forming region of the light modulation element. The light modulation device, is formed with an aperture, and provided with a container-like coolant enclosure sealed with a coolant for cooling the light modulation element. The coolant enclosure has a first cooling chamber hermetically sealed with the coolant in a space including the aperture, and a second cooling chamber formed in a position avoiding the aperture and partitioned from the first cooling chamber to thereby allow another coolant from an exterior chamber to flow therein.

REFERENCES:
patent: 7085034 (2006-08-01), Fujimori et al.
patent: A-01-159684 (1989-06-01), None
patent: A-2003-124670 (2003-04-01), None

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