Optics: image projectors – Composite projected image – Multicolor picture
Reexamination Certificate
2005-05-31
2005-05-31
Dowling, William C. (Department: 2851)
Optics: image projectors
Composite projected image
Multicolor picture
C353S020000
Reexamination Certificate
active
06899432
ABSTRACT:
A color management system for use with projection displays includes, for example, two or more analyzers positioned to receive light beams emitted from corresponding image assimilators, which each comprise a transmissive panel and a polarizing beamsplitter. Each analyzer is positioned to receive a light beam directly from an associated image assimilator before the light has passed through another optical element such as a light combiner. The analyzers are configured for producing filtered light outputs with improved contrast relative to the incoming light beams. These closely-coupled analyzers are able to remove substantially all of the noise before it has become indistinguishable, on the basis of polarization, from the light that comprises the desirable image. In an exemplary embodiment, an optical isolator is positioned to receive both a light output from a color management system and a reflection of the light output. The optical isolator is configured for isolating the light output from the reflection.
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Written Opinion, PCT/US02/25101 dated Apr. 17, 2003, 6 p.
Notification of Transmittal of International Search Report, International Search Report for PCT/US 03/14887, dated May 8, 2003.
Newell Michael
Pentico Clark
Advanced Digital Optics, Inc.
Dowling William C.
Snell & Wilmer LLP
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