Helical scanning pattern generator
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United States of America Patent
Stats
-
Feb 4, 1997
Issued Date -
N/A
app pub date -
May 28, 1996
filing date -
Sep 21, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Scanning apparatus to scan an object by means of a light beam, including at least one mirror (2), which, during operation, is driven by a drive to make a combined movement of a continuous rotation around an axis of rotation (63) and an oscillating movement relative to the axis of rotation (63), the drive including a rotation drive (7, 8) and an oscillating drive (11, 12), both drives being controlled in such a way that the continuous rotation and the oscillating movement of the mirror are controlled independently. Thus the oscillating drive oscillates only the mirror. The light beam is thus parallel to or coincident with the axis of rotation.
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Cited Art Landscape
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