Optics: image projectors – Composite projected image
Reexamination Certificate
2011-03-08
2011-03-08
Dowling, William C (Department: 2878)
Optics: image projectors
Composite projected image
C353S081000, C353S094000, C362S234000, C362S241000
Reexamination Certificate
active
07901082
ABSTRACT:
There are provided 2n (n is 2 or more) light sources21ato21d, 2n first collective optical systems composed of ellipsoidal mirrors21ato21dthat are arranged so as to focus light beams emitted from the respective light sources, n first light combiner optical systems that are composed of prisms23aand23b, each having an isosceles triangular prism shape in cross section, and are arranged so as to synthesize exiting light beams from respective corresponding two of the first collective optical systems, second collective optical systems26aand26barranged so as to focus exiting light beams from the respective first light combiner optical systems, a n/2 second light combiner optical system composed of a prism27having an isosceles triangular prism shape in cross section and arranged so as to synthesize exiting light beams from respective corresponding two of the second collective optical systems, and a third collective optical system35composed of a plurality of lenses and a plurality of lens arrays and arranged so as to allow exiting light beam from the second light combiner optical system to be incident thereon. The 2n first collective optical systems each have an optical axis substantially parallel to one another.
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Sannohe Shinya
Wada Mitsuhiro
Dowling William C
Hamre Schumann Mueller & Larson P.C.
Panasonic Corporation
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