Optical system and method for use in projection systems
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United States of America Patent
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Aug 30, 2011
Grant Date -
Nov 29, 2007
app pub date -
Oct 17, 2004
filing date -
Oct 17, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optical system and method are presented to produce a desired illuminating light pattern. The system comprises a light source system configured and operable to produce structured light in the form of a plurality of spatially separated light beams; and a beam shaping arrangement. The beam shaping arrangement is configured as a diffractive optical unit configured and operable to carry out at least one of the following: (i) combining an array of the spatially separated light beams into a single light beam thereby significantly increasing intensity of the illuminating light; (ii) affecting intensity profile of the light beam to provide the illuminating light of a substantially rectangular uniform intensity profile.
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