Optical radiation generation apparatus and method
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United States of America Patent
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Issued Date -
Jun 1, 2006
app pub date -
Dec 1, 2004
filing date -
Dec 1, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A radiation generating apparatus includes an emitter bar having an array of optical radiation emitters arranged along a line, each emitter causing optical radiation to be emitted in substantially a common direction. The apparatus also includes one or more lenses, positioned adjacent the emitters, so as to collimate the radiation emitted from each emitter and to generate a line of substantially parallel light beams. Each beam is collimated in at least a cross-array direction substantially perpendicular to the plane defined by the line of emitters and the common direction, such that any relative positional deviations from linearity for the light beams in the cross-array direction with respect to their width in that direction, is smaller downstream of the lens(es) with respect to that at the emitters.
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