Invention Grant
- Patent Title: Magnetic sensing for auto focus position detection
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Application No.: US14827140Application Date: 2015-08-14
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Publication No.: US10365121B2Publication Date: 2019-07-30
- Inventor: Calvin K. Wong , Ho Seop Jeong , Aurelien R. Hubert , Simon S. Lee
- 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: G03B13/36
- IPC: G03B13/36 ; G01D5/14 ; G02B7/36 ; G03B3/10 ; G03B5/00

Abstract:
Some embodiments include a method for measuring the position of a camera lens carrier moveable by an autofocus actuator. In some embodiments, the method includes generating a measurement of a magnetic field resulting at least in part from the one or more position sensor magnets. In some embodiments, the generating the measurement of the magnetic field includes measuring a magnetic field component created at least in part by the one or more position sensor magnets fixedly mounted to the camera lens carrier. In some embodiments, the camera lens carrier is moveably coupled to a substrate by the autofocus actuator to provide motion in a direction orthogonal to the substrate. In some embodiments, the generating the measurement of the magnetic field component includes measuring the magnetic field component at a sensor fixedly mounted to the substrate of the autofocus actuator.
Public/Granted literature
- US20160231528A1 MAGNETIC SENSING FOR AUTO FOCUS POSITION DETECTION Public/Granted day:2016-08-11
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