Method of calibrating a spatial light modulator printing system
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United States of America Patent
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Nov 24, 1998
Issued Date -
N/A
app pub date -
Jan 6, 1997
filing date -
Jun 17, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for calibrating a printing system using a spatial light modulator. The spatial light modulator is an array of individually activated elements, all of which are set in a predetermined state, such as the ON state. Light is then directed onto the array and the resultant light passed into the printing system from the modulator is monitored by a sensor. Discrepancies between the light expected and received at the sensor are used to adjust the operation of the modulator to compensate for stuck or non-responsive pixels.
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