Optics: image projectors – Stereoscopic
Reexamination Certificate
2006-08-28
2011-11-29
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Stereoscopic
C353S008000, C348S056000
Reexamination Certificate
active
08066377
ABSTRACT:
A system and method for improving stereoscopic images produced by a projecting device containing a single chip DMD, seen through an eye-switching device, such as a pair of liquid crystal (LC) shutter glasses. The system and method are used with a video projector designed to be used with a multiple-color, color switching device, such as a color wheel. The color wheel includes at least three critical color segments. The color wheel may also physically include or be electronically re-defined to include at least one non-critical segment. A color sequencing firmware resident in the video projector is used to align a non-critical segment in front of the projector's main light source during the eye-switching device's unstable transition phase. If the non-critical segment is transmissive, the firmware controls the DMD so that light is discontinued. If the non-critical segment is non-transmissive, the light is physically blocked. If the non-critical segment is electronically defined, the firmware directly controls the DMD to discontinue the transmission of light for at least the duration of the eye-switching device's unstable transition phase.
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Husak Michal
Lawrence Joseph D.
Mueller Robert
Ward Chris
Craine Dean A.
Epps Georgia Y
Le Bao-Luan
Lightspeed Design, Inc.
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