Illumination – Light source and modifier – Including reflector
Reexamination Certificate
2007-05-01
2010-02-23
Sember, Thomas M (Department: 2885)
Illumination
Light source and modifier
Including reflector
C313S114000, C353S099000
Reexamination Certificate
active
07665867
ABSTRACT:
A light source unit including an arc tube having a light emitting section, sealed sections, an elliptic reflector, and a secondary reflecting mirror to cover the front side of the light emitting section and reflect a luminous flux radiated from the light emitting section toward the elliptic reflector. The center of discharging emission from the arc tube is disposed at a first focal position of the elliptic reflector, and the secondary reflecting mirror is configured as a separate member from the arc tube, so that the outer peripheral portion of the secondary reflecting mirror is accommodated within a circular cone connecting a second focal position of the elliptic reflector and the distal end of the front sealed section of the arc tube when being mounted to the front sealed section of the arc tube.
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Fujisawa Shohei
Kobayashi Hiroyuki
Takado Yuji
Takezawa Takeshi
Oliff & Berridg,e PLC
Seiko Epson Corporation
Sember Thomas M
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