INDUCTIVE THREE-AXIS LENS POSITION MEASUREMENT USING AF AND OIS COILS

INDUCTIVE THREE-AXIS LENS POSITION MEASUREMENT USING AF AND OIS COILS

Some embodiments include a camera of a mobile computing device. In some embodiments, the camera includes an autofocus coil for moving a lens module, a plurality of optical image stabilization coils, a driver circuit element, connected to the autofocus coil, for passing an alternating current wavefor...

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Hauptverfasser: Gregory Thomas M, Ho Albert A, Topliss Richard J, Tsai Richard H
Format: Patent
Sprache:eng
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ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator Gregory Thomas M
Ho Albert A
Topliss Richard J
Tsai Richard H
description Some embodiments include a camera of a mobile computing device. In some embodiments, the camera includes an autofocus coil for moving a lens module, a plurality of optical image stabilization coils, a driver circuit element, connected to the autofocus coil, for passing an alternating current waveform through the autofocus coil, and one or more measurement circuit elements, connected to respective ones of the plurality of the optical image stabilization coils, for measuring changes induced in currents in the respective ones of the plurality of the optical image stabilization coils by the waveform.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
title INDUCTIVE THREE-AXIS LENS POSITION MEASUREMENT USING AF AND OIS COILS
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