Printing apparatus for photosensitive media using dichroic prism in illumination path
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United States of America Patent
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-
Sep 23, 2003
Grant Date -
Aug 7, 2003
app pub date -
Feb 6, 2002
filing date -
Feb 6, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A writing apparatus (10) for forming images from digital data onto color motion picture film or other photosensitive medium (32), the apparatus employing a single spatial light modulator (30) and having an illumination system (14) comprising a dichroic prism (26) and a plurality of light sources (20). The dichroic prism (26) directs light from each light source (20) onto a common output axis, thereby providing an incident light beam for modulation by the spatial light modulator (30). The apparatus allows high-speed imaging optimized for photosensitive media (32). Additional sensor (12) and logic components allow writing apparatus (10) to adapt to different types of photosensitive media (32) without requiring any retooling or manual adjustment.
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