G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 26/10 (2006.01) G02B 26/12 (2006.01) G02B 27/00 (2006.01)
Patent
CA 2159367
A method for compensating for inaccuracies in the planes of the facets is provided which is operative in conjunction with a spinner having a plurality of facets, the current one of which scans a light beam along a scan line. The compensation unit includes first and second light spot misalignment detectors, a beam location corrector and a beam shifter. The first and second light spot misalignment detectors are respectively located close to a beginning and an end of the scan line, and respectively measure initial and final misalignments of a light spot scanned in a cross-scanning direction. The beam location corrector determines first and second corrections for the initial and final misalignments and determines a curve through previous values of the first and second corrections for the current facet. The beam shifter receives the curve and, in response thereto, shifts the location of the light beam thereby to correct for inaccuracies of the current facet.
Lichtenstein Yoav
Vronsky Eliyahu
Lichtenstein Yoav
Mccarthy Tetrault Llp
Scitex Corporation Ltd.
Vronsky Eliyahu
LandOfFree
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