Optics: image projectors – Distortion compensation
Reexamination Certificate
2011-05-03
2011-12-06
Epps, Georgia Y (Department: 2878)
Optics: image projectors
Distortion compensation
C353S094000, C353S099000, C359S011000, C372S029014, C372S038020, C372S050120
Reexamination Certificate
active
08070298
ABSTRACT:
An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.
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Cruz Magda
Epps Georgia Y
Microvision Inc.
Wills Kevin D.
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