Heat dissipation structure for optical engine

Details Heat dissipation structure for optical engine Heat dissipation structure for optical engine

2006-12-12

2006-12-12

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

With support

C353S052000, C353S060000

Reexamination Certificate

active

07149041

ABSTRACT:
An optical engine includes a light source, an optical main body and a projection lens. The optical main body includes a reflective light valve, a case, a first heat-dissipating device and a heat-insulating device. The reflective light valve reflects the incident light beam to form an image light beam or a dumped light beam that is not projected into the projection lens. The case encloses the light paths of the incident light beam, the image light beam and the dumped light beam. An opening is on the case for the dumped light beam to be projected into. A first heat-dissipating device is fixed on the case and covers the opening for removing the heat generated by the dumped light beam. A heat-insulating device is disposed between the first heat-dissipating device and the case for preventing the heat conduction between the first heat-dissipating device and the case.

REFERENCES:
patent: 6671792 (2003-12-01), McAllister
patent: 6814445 (2004-11-01), Kalyandurg et al.
patent: 6908197 (2005-06-01), Penn
patent: 7077526 (2006-07-01), Overmann et al.
patent: 2003057755 (2003-02-01), None

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