Color printer comprising a linear grating spatial light modulator
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United States of America Patent
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May 11, 2004
Grant Date -
Mar 11, 2004
app pub date -
Sep 10, 2002
filing date -
Sep 10, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A printer for printing on a light sensitive media (100) includes a light source (10) and optics. Cross array components and array direction components reduce divergence of the beam from the light. The illumination optics flood illuminates a grating modulator with reduced light beams. Modulator sites on the grating modulator array, are individual addressed which imparts a phase change to the reduced light beams. An imaging lens (70) directs light from the grating modulator array onto the light sensitive media (100). The imaging lens (70) includes a first lens element which converts the light into diffracted and undiffracted light; a spatial filter (80) which discriminates between the diffracted and the undiffracted light; and a second lens element which reconstructs an image of the modulator sites.
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