Optics: image projectors – Polarizer or interference filter
Reexamination Certificate
2005-06-30
2008-09-09
Mahoney, Christopher (Department: 2862)
Optics: image projectors
Polarizer or interference filter
C353S033000
Reexamination Certificate
active
07422329
ABSTRACT:
Images to be displayed are produced for left-eye viewing and right-eye viewing in synchronization with a polarization device that alternately changes polarization of the viewed images. In one embodiment, a control mechanism synchronizes modulation performed by microdisplays in a reflective Liquid Crystal On Silicon (LCOS) kernel with an electronically controlled shutter that alternately converts light output from the LCOS kernel between S and P polarizations. Prior to reaching the shutter (or other polarization switching device) a wavelength specific retarder is utilized so that the polarizations of various light channels are homogenous. The kernel installed in, for example, a 3-D enabled monitor, 3-D gaming device, or a 3-D enabled High Definition (HD) LCOS Rear projection television (RPTV). In one embodiment, the LCOS Kernel is an LMS™ LiquidVision™ or LMS AT™ kernel
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LightMaster Systems, Inc.
Mahoney Christopher
Martine & Penilla & Gencarella LLP
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