Invention Grant
- Patent Title: Inductive three-axis lens position measurement using AF and OIS coils
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Application No.: US15236176Application Date: 2016-08-12
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Publication No.: US10484583B2Publication Date: 2019-11-19
- Inventor: Thomas M. Gregory , Albert A. Ho , Richard J. Topliss , Richard H. Tsai
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Robert C. Kowert
- Main IPC: H04N5/225
- IPC: H04N5/225 ; H04N5/232 ; G02B7/28 ; G02B7/08 ; G02B27/64

Abstract:
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.
Public/Granted literature
- US20170118408A1 INDUCTIVE THREE-AXIS LENS POSITION MEASUREMENT USING AF AND OIS COILS Public/Granted day:2017-04-27
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