Glass reflector for projector and manufacturing method for...

Details Glass reflector for projector and manufacturing method for... Glass reflector for projector and manufacturing method for...

2005-10-25

2005-10-25

Husar, Stephen (Department: 2875)

Illumination

Light source and modifier

Including reflector

C362S341000, C313S113000, C359S869000

Reexamination Certificate

active

06957900

ABSTRACT:
For example, the reflector according to the present invention is a reflector made of glass for a projector which is composed of amorphous glass whose thermal expansion coefficient is 30 to 45×10−7/° C. and includes a reflective surface for reflecting light emitted from a light source and an opening for inserting a light source bulb or a conductor to the light source bulb, in which the opening is smoothed by heat-treating the surface thereof after opening-drilling, thus mechanical damage is removed from the processed part.

REFERENCES:
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patent: 3825742 (1974-07-01), Levin
patent: 4499526 (1985-02-01), Tarnay
patent: 5438448 (1995-08-01), Nishimura et al.
patent: 5858046 (1999-01-01), Allen et al.
patent: 6306010 (2001-10-01), West et al.
patent: 6492031 (2002-12-01), Moriyama et al.
patent: 6814453 (2004-11-01), Miwa et al.
patent: 2004-352559 (2004-12-01), None

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