DUAL-MOTOR LENS ACTUATING DEVICE AND DUAL-MOTOR LENS ACTUATING METHOD THEREOF
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United States of America Patent
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N/A
Issued Date -
Sep 12, 2013
app pub date -
May 17, 2012
filing date -
Mar 7, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention discloses a dual-motor lens actuating device and method thereof. The device comprises a first backup plate, second backup plate, first driving motor, second driving motor, position sensor, step sensing unit and microcontroller. The first backup plate is installed to a zoom lens group; the second backup plate is installed to a focus lens group. The first driving motor and the second driving motor drive the movements of the zoom lens group and focus lens group respectively. The position sensor senses positions of the first and second backup plates to transmit a position signal. The step sensing unit senses movements corresponding to the lens groups to transmit a step signal. The microcontroller controls the first driving motor and the second driving motor to drive the movements of the zoom lens group and focus lens group according to the position signal and step signal.
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