Optics: image projectors – Reflector
Reissue Patent
2009-01-08
2010-10-26
Koval, Melissa J (Department: 2862)
Optics: image projectors
Reflector
C353S099000, C353S121000, C445S026000, C313S113000, C362S263000
Reissue Patent
active
RE041874
ABSTRACT:
A reflective mirror manufacturing method for manufacturing a reflective mirror used in an illumination device including an arc tube including a light-emitting portion and a reflective mirror including a reflective surface that reflects light from the light-emitting portion in a predetermined direction, includes: a first step of forming a tube by heating a tube including a material of the reflective mirror, thereafter putting the tube in a form block, applying internal pressure with an inert gas to cause a center portion of the tube to expand, so that part of an inner surface of the expanded center portion includes a shape corresponding to the reflective surface of the reflective mirror; a second step of cutting the tube at the center portion to form a reflective mirror member; and a third step of forming a reflective layer on an inner surface of the reflective mirror member.
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Koval Melissa J
Oliff & Berridg,e PLC
Seiko Epson Corporation
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