Illumination – Light source and modifier – Including reflector
Reexamination Certificate
2008-12-15
2011-10-18
Husar, Stephen F (Department: 2875)
Illumination
Light source and modifier
Including reflector
C362S253000, C362S255000, C362S261000, C362S296010
Reexamination Certificate
active
08038325
ABSTRACT:
An auxiliary reflecting mirror is manufactured by heating the central portion of a quartz glass tube and compressing the central portion by pushing two end portions of the quartz glass tube so that the wall thickness of the central portion thickens, accommodating the quartz glass tube after thickening the wall thickness of the central portion in a mold having inner surfaces formed to the reflecting surface shape, which is to be formed in an auxiliary reflecting mirror, and forming an expanded portion by expanding the central portion, of which the wall thickness was thickened, by introducing a gas from the two ends of the quartz glass tube, cutting the quartz glass tube in at least the central portion of the expanded portion, evaporating a reflecting film on the outer surface of the expanded portion and forming a reflecting surface.
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Strong, J., “Evaporation Technique for Aluminum”, Phys. Rev. 43 (1933), pp. 498-498.
Nishida Kazuhiro
Yanagisawa Hirotaka
Dunwiddie Meghan
Husar Stephen F
Oliff & Berridg,e PLC
Seiko Epson Corporation
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