公开(公告)号：US11700441B1

公开(公告)日：2023-07-11

申请号：US17237896

申请日：2021-04-22

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Anish Bhide

IPC: H04N5/232 ,  G03B5/00 ,  G01R33/07 ,  H04N23/55 ,  G01R33/09 ,  H04N23/68

CPC classification number: H04N23/55 ,  G01R33/07 ,  G01R33/072 ,  G01R33/098 ,  H04N23/685

Abstract: A camera system may include circuitry for measuring the positions of an optics assembly (e.g., one or more lenses) and/or an image sensor of the camera system. The circuitry may include analog circuits comprising a first and a second position sensors to produce a first and a second sensor signals based on a first magnetic field and a second magnetic field respectively. The magnetic fields may have the same or different polarities detectable by the position sensors. The position sensors may be coupled in parallel in the same or reverse directions to produce a combined sensor output. The circuitry may determine position information for the optics assembly and/or the image sensor based on the combined sensor output. The camera system may use the position information as a feedback signal to control the position of the optics assembly (e.g., for autofocus) and/or the position of the image sensor (e.g., for optical image stabilization (OIS)).

公开(公告)号：US11483460B2

公开(公告)日：2022-10-25

申请号：US17221754

申请日：2021-04-02

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Anish Bhide

IPC: H04N5/225 ,  G02B7/09 ,  G03B5/04 ,  G03B5/06 ,  G03B13/36

Abstract: A camera system may include one or more voice coil motor (VCM) actuators to implement focus, tilt and shift functions. The VCM actuators may include coils segmented into multiple coil segments having individually impedances lower than the impedance of the respective coil as a whole.
The coil segments may be individually driven by respective currents at different points in time to interact with magnet(s) to produce motive forces along the same axis. Based on the winding configuration and driving mode of the coil segments, the motive forces may move a lens group relative to an image sensor in a direction substantially orthogonal to an image plane, tilt the lens group relative to the image sensor, or shift the image sensor relative to the lens group on the image plane.

公开(公告)号：US20210314469A1

公开(公告)日：2021-10-07

申请号：US17221754

申请日：2021-04-02

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Anish Bhide

IPC: H04N5/225 ,  G02B7/09 ,  G03B13/36 ,  G03B5/04 ,  G03B5/06

Abstract: A camera system may include one or more voice coil motor (VCM) actuators to implement focus, tilt and shift functions. The VCM actuators may include coils segmented into multiple coil segments having individually impedances lower than the impedance of the respective coil as a whole.
The coil segments may be individually driven by respective currents at different points in time to interact with magnet(s) to produce motive forces along the same axis. Based on the winding configuration and driving mode of the coil segments, the motive forces may move a lens group relative to an image sensor in a direction substantially orthogonal to an image plane, tilt the lens group relative to the image sensor, or shift the image sensor relative to the lens group on the image plane.

公开(公告)号：US20250102367A1

公开(公告)日：2025-03-27

申请号：US18373839

申请日：2023-09-27

Applicant: Apple Inc.

Inventor： Himesh Patel ,  Anish Bhide ,  Shahrooz Shahparnia

IPC: G01K1/02 ,  G01K1/14 ,  G01K7/20 ,  G01R33/07 ,  G01R33/09 ,  H04N23/51

Abstract: Described herein are sensing arrangements for a camera module that include a position sensor, a temperature sensor, a driver chip, and a multiplexer. The position sensor has a first bias input and a first set of terminals. The temperature sensor has a temperature-sensitive resistor, a second bias input, and a second set of terminals. The driver chip includes a bias output connected to a bias current source and a set of inputs for receiving a voltage signal. The multiplexer is configured to selectively connect the position sensor or the temperature sensor to the driver chip, such that, the bias output is connected to the first or the second bias input, respectively, and the set of inputs is connected to the first or the second set of terminals, respectively, thereby causing the voltage signal received by the set of inputs to indicate a position or a temperature of the camera module, respectively.

公开(公告)号：US12075145B2

公开(公告)日：2024-08-27

申请号：US18048706

申请日：2022-10-21

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Anish Bhide

IPC: H04N23/55 ,  G02B7/09 ,  G03B3/10 ,  G03B5/04 ,  G03B5/06 ,  G03B13/36 ,  H04N23/54

CPC classification number: H04N23/55 ,  G02B7/09 ,  G03B3/10 ,  G03B5/04 ,  G03B5/06 ,  G03B13/36 ,  H04N23/54 ,  G03B2205/0069

Abstract: A camera system may include one or more voice coil motor (VCM) actuators to implement focus, tilt and shift functions. The VCM actuators may include coils segmented into multiple coil segments having individually impedances lower than the impedance of the respective coil as a whole. The coil segments may be individually driven by respective currents at different points in time to interact with magnet(s) to produce motive forces along the same axis. Based on the winding configuration and driving mode of the coil segments, the motive forces may move a lens group relative to an image sensor in a direction substantially orthogonal to an image plane, tilt the lens group relative to the image sensor, or shift the image sensor relative to the lens group on the image plane.