Imaging apparatus using dither to minimize pixel effects
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United States of America Patent
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Jun 3, 2003
Grant Date -
N/A
app pub date -
Jan 23, 2002
filing date -
Jan 23, 2002
priority date (Note) -
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Abstract
An imaging apparatus (10) for forming images from digital data, typically for printing or projection, the apparatus employing a spatial light modulator (30). The spatial light modulator (30) has a mounting (70) that is flexible in at least one direction in the plane that contains the surface of the spatial light modulator (30). An actuator (80) moves the mounting (70) at a speed that is at least a multiple of the refresh rate of the spatial light modulator (30), causing the movement of the spatial light modulator (30) to effect dithering of output pixels. This enlarges the effective pixel size to improve fill factor and reduce pixelization anomalies.
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