Illumination optical arrangement
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United States of America Patent
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Oct 28, 1986
Grant Date -
N/A
app pub date -
Apr 23, 1985
filing date -
Apr 28, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An illumination optical arrangement comprises light source means emitting a coherent light beam, and means for forming a substantially incoherent light source from the coherent light beam. The incoherent light source forming means includes means for periodically deflecting the coherent light beam and scanning a predetermined scanning area by the coherent light beam, and optical means for forming a plurality of optical paths for directing the coherent light beam passed through the predetermined scanning area to a plurality of different secondary scanning areas. Each of the plurality of secondary scanning areas is scanned by the periodically deflected coherent light beam.
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