OPTICAL ZOOM MECHANISM
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United States of America Patent
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Issued Date -
Mar 20, 2008
app pub date -
Sep 18, 2006
filing date -
Sep 18, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An optical zoom mechanism is provided that comprises a first zoom lens movable along a linear axis and a second zoom lens movable along the same linear axis as the first zoom lens, both zoom lenses being connected to a support structure. First and second direct drive linear motors are coupled to the first and second zoom lenses respectively, and they are operative to independently move the zoom lenses along the linear axis. First and second encoders coupled to the first and second direct drive linear motors respectively are operative to independently measure the positions of the first and second zoom lenses.
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