Optics: image projectors – Particular condenser
Reexamination Certificate
2006-02-23
2010-10-26
Dowling, William C (Department: 2878)
Optics: image projectors
Particular condenser
C353S099000, C362S347000, C362S296010
Reexamination Certificate
active
07819533
ABSTRACT:
A light source unit and a projector apparatus secure a certain light quantity by improving the utilization efficiency of light, and thereby realize miniaturization. The light source unit includes a reflector having an opening for housing a lamp and an opening for radiating light, the reflector having an inner surface subjected to mirror surface working to be shaped in a polynomial surface, a light source equipped with a bulb and an electrode introducing unit guiding an electrode to the bulb, the bulb being inserted into the reflector from the opening and being disposed so that a focus position of the light reflected by an inner wall of the reflector is not located on the electrode introducing unit, and a condenser lens condensing the light emitted from the reflector, the condenser lens disposed so as to be located on an optical axis of light emitted from the light source.
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Casio Computer Co. Ltd.
Dowling William C
Holtz Holtz Goodman & Chick PC
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