Optical scanning system
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United States of America Patent
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Aug 17, 1993
Grant Date -
N/A
app pub date -
Jun 26, 1992
filing date -
Jun 26, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a scanner system (10) in which two scanners (14 and 16) deflect light from a laser (12) in orthogonal directions along a cylindrical object surface (18), the light from the laser is focused by a combination of an image-forming lens (24) disposed between the laser (12) and the first scanner (14) and a negative field-flattening lens (28) disposed between the two scanners (14 and 16) so as to compensate the effective focal length for the change in light-path length that results from deflection by the first scanner (14).
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Cited Art Landscape
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