Optics: image projectors – Particular condenser
Reexamination Certificate
2006-02-14
2006-02-14
Perkey, W. B. (Department: 2851)
Optics: image projectors
Particular condenser
C353S098000, C362S296040, C362S297000
Reexamination Certificate
active
06997565
ABSTRACT:
A lamp has a deformed lamp reflector and a lamp front glass. The deformed lamp reflector is formed by deforming a paraboloid of revolution of a conventional lamp reflector to an aspherical reflection surface which is rotationally symmetrical with respect to an optical axis. The lamp front glass is obtained by deforming the incident plane of a conventional lamp front glass to an aspherical lens surface rotationally symmetric with respect to the optical axis. A light flux radiated from the center point of the light source of an illuminant is reflected by the deformed lamp reflector, and is output through the lens as a parallel light flux having a circular cross section equal in area to the lens.
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Goto Yoshiyuki
Nishimae Jun-ichi
Sasagawa Tomohiro
Sekiguchi Akira
Teramoto Kohei
Leydig , Voit & Mayer, Ltd.
Mitsubishi Denki & Kabushiki Kaisha
Perkey W. B.
Sever Andrew
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