Imaging head with laser diode array and a beam-shaping micro light-pipe array
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United States of America Patent
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Issued Date -
Feb 17, 2005
app pub date -
Oct 12, 2004
filing date -
Dec 12, 2000
priority date (Note) -
Abandoned
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Abstract
An optical imaging heads that produce a plurality of light spots on light sensitive media such as photographic film or printing plate. The optical head incorporates an array of multi-mode laser diodes as a light source, a Micro Light-Pipe Array (MLPA) as a beam-shaping element, means for reducing the divergence of the laser diode beam in the fast axis direction and means for imaging the laser diode emitters on a surface close to the micro light-pipe entrance aperture.
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