Driving apparatus of zoom lens
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United States of America Patent
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-
May 12, 2015
Grant Date -
Mar 28, 2013
app pub date -
Sep 23, 2011
filing date -
Sep 23, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A driving apparatus of a zoom lens includes a rotary barrel, a fixed barrel, a guiding rail, and a lens frame. The rotary barrel has at least a protrusion on an outer side thereof. The fixed barrel receives the rotary barrel therein, and has at least a guiding slot and a recess on an inner side thereof. The protrusion of the rotary barrel engages the guiding slot of the fixed barrel, and the guiding slot is communicated with the recess. The guiding rail is provided in the recess of the fixed barrel. The lens frame is received in the fixed barrel, and engages the guiding rail to be driven to move along the guiding rail. Therefore, all the elements of the driving apparatus are received in the fixed barrel that it may reduce the size of the driving apparatus.
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