# US 12,015,849 B2 · Camera module and electronic device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,849 B2 - Document ID: US12015849B2 - Status: Granted - Kind: B2 - Application number: 17/780,850 - Filed: 2020-11-11 - Published: 2023-01-05 - Granted: 2024-06-18 - Earliest claimed: 2019-11-30 - Assignees: Huawei Technologies Co., Ltd. - Applicants: Huawei Technologies Co., Ltd. - Inventors: Gang Wang; Xin Li; Wei Tang; Dengfeng Li - Web page: https://patentgrep.com/patent/US12015849B2 ## CPC - H04N 23/687: {by shifting the lens or sensor position} - G03B 13/36: Autofocus systems - G03B 30/00: Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles - H04M 1/0264: {for a camera module assembly} - H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices - H04N 23/65: Control of camera operation in relation to power supply - H04N 23/67: Focus control based on electronic image sensor signals - G03B 2205/0076: using shape memory alloys - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) ## Abstract A camera system includes a module frame, a camera lens, an image sensor, and an SMA motor that are stacked within the module frame. The camera lens is fixedly connected to the module frame, and the SMA motor is located on an out-light side of the camera lens. The image sensor is located between the camera lens and the SMA motor and is fastened to the SMA motor. The SMA motor is configured to actuate the image sensor to shift in a direction parallel to an optical axis of the camera lens. The SMA motor is further configured to actuate the image sensor to shift on a plane perpendicular to the optical axis of the camera lens. ## Claims ### Claim 1 A camera system comprising: a module frame comprising an in-light hole; a camera lens coupled to the module frame, and comprising an in-light side and an out-light side, and having an optical axis; a prism located on the in-light side and fastened within the module frame, wherein the in-light hole faces the prism; a shape memory alloy (SMA) motor located on the out-light side; and an image sensor located between the camera lens and the SMA motor and fastened to the SMA motor, wherein the camera lens, the image sensor, and the SMA motor are stacked within the module frame, and wherein the SMA motor is configured to: actuate the image sensor to shift in a direction parallel to the optical axis; and actuate the image sensor to shift on a plane perpendicular to the optical axis. ### Claim 2 (depends on 1) The camera system of claim 1, wherein the SMA motor comprises: a motor frame fastened within the module frame; a carrier located within the motor frame and comprising a first side fastened to the image sensor and facing the camera lens; and a plurality of SMA cables disposed in pairs and configured to shrink when electrified or heated, wherein each SMA cable comprises a movable end and a fixed end, wherein movable ends of four pairs of the SMA cables are respectively fastened to four sides of the carrier, wherein fixed ends of the four pairs are respectively fastened to different positions of the motor frame, wherein two pairs of the four pairs and another two pairs of the four pairs are symmetrically disposed relative to a first reference plane, wherein the two pairs on a same side of the first reference plane are symmetrically disposed relative to a second reference plane, wherein two SMA cables of a same pair are symmetrically disposed relative to a third reference plane, wherein both the first reference plane and the second reference plane are traversed by the optical axis, and wherein the third reference plane is perpendicular to the optical axis. ### Claim 3 (depends on 2) The camera system of claim 2, wherein the carrier comprises: a second side comprising two sides; a third side, wherein the second side and the third side are symmetrically disposed relative to the second reference plane; and a fourth side, wherein the third side and the fourth side are respectively connected to the two sides, wherein the second side and the fourth side are symmetrically disposed relative to the first reference plane, wherein the third reference plane intersects with the second side, the third side, and the fourth side, wherein the SMA cables comprise: a first SMA cable comprising a first movable end and a first fixed end disposed close to the third side relative to the first movable end; a second SMA cable comprising a second movable end and a second fixed end disposed close to the third side relative to the second movable end, wherein both the first movable end and the second movable end are fastened to an end of the second side close to the third side, wherein the first SMA cable intersects with the second SMA cable, and wherein the first SMA cable and the second SMA cable are symmetrically disposed relative to the third reference plane; a third SMA cable, wherein the third SMA cable and the first SMA cable are symmetrically disposed relative to the second reference plane; a fourth SMA cable, wherein the fourth SMA cable and the second SMA cable are symmetrically disposed relative to the second reference plane; a fifth SMA cable, wherein the fifth SMA cable and the third SMA cable are symmetrically disposed relative to the first reference plane; a sixth SMA cable, wherein the sixth SMA cable and the fourth SMA cable are symmetrically disposed relative to the first reference plane; a seventh SMA cable, wherein the seventh SMA cable and the fifth SMA cable are symmetrically disposed relative to the second reference plane; and an eighth SMA cable, wherein the eighth SMA cable and the sixth SMA cable are symmetrically disposed relative to the second reference plane. ### Claim 4 (depends on 2) The camera system of claim 2, wherein the SMA motor further comprises a circuit board located between the motor frame and the module frame, and wherein the image sensor is electrically connected to the circuit board through a plurality of bonding wires. ### Claim 5 (depends on 2) The camera system of claim 2, wherein the SMA motor further comprises a circuit board located between the motor frame and the module frame, wherein the image sensor is electrically connected to the carrier through a plurality of bonding wires, and wherein the carrier is electrically connected to the circuit board through a connecting wire. ### Claim 6 (depends on 4) The camera system of claim 4, further comprising: a first electric-conductor disposed on the carrier and electrically connected to the movable end; and a second electric-conductor disposed on the motor frame and electrically connects the circuit board to the fixed end, wherein the SMA motor further comprises a conductive connecting piece, that electrically connects the first electric-conductor to the circuit board. ### Claim 7 (depends on 6) The camera system of claim 6, wherein the conductive connecting piece is a spring and located between the carrier and the motor frame, and wherein the motor frame further comprises a third electric-conductor that electrically connects the conductive connecting piece to the circuit board. ### Claim 8 (depends on 6) The camera system of claim 6, wherein the conductive connecting piece is a conducting wire and connected to the circuit board. ### Claim 9 An electronic device comprising: a housing; and a camera system accommodated in the housing and comprising: a module frame comprising an in-light hole; a camera lens coupled to the module frame and comprising an in-light side and an out-light side, and having an optical axis; a prism located on the in-light side and fastened within the module frame, wherein the in-light hole faces the prism; a shape memory alloy (SMA) motor located on the out-light side; and an image sensor located between the camera lens and the SMA motor and fastened to the SMA motor, wherein the camera lens, the image sensor, and the SMA motor are stacked within the module frame, and wherein the SMA motor is configured to: actuate the image sensor to shift in a direction parallel to the optical axis; and actuate the image sensor to shift on a plane perpendicular to the optical axis. ### Claim 10 (depends on 9) The electronic device of claim 9, wherein the SMA motor comprises: a motor frame fastened within the module frame; a carrier located within the motor frame and comprising a first side fastened to the image sensor and facing the camera lens; and a plurality of SMA cables disposed in pairs and configured to shrink when electrified or heated, wherein each SMA cable comprises a movable end and a fixed end, wherein movable ends of four pairs of the SMA cables are respectively fastened to four sides of the carrier, wherein fixed ends of the four pairs are respectively fastened to different positions of the motor frame, wherein two pairs of the four pairs and another two pairs of the four pairs are symmetrically disposed relative to a first reference plane, wherein the two pairs on a same side of the first reference plane are symmetrically disposed relative to a second reference plane, wherein two SMA cables of a same pair are symmetrically disposed relative to a third reference plane, wherein both the first reference plane and the second reference plane are traversed by the optical axis, and wherein the third reference plane is perpendicular to the optical axis. ### Claim 11 (depends on 10) The electronic device of claim 10, wherein the carrier comprises: a second side comprising two sides; a third side, wherein the second side and the third side are symmetrically disposed relative to the second reference plane; and a fourth side, wherein the third side and the fourth side are respectively connected to the two sides, wherein the second side and the fourth side are symmetrically disposed relative to the first reference plane, wherein the third reference plane intersects with the second side, the third side, and the fourth side, and wherein the SMA cables comprise: a first SMA cable comprising a first movable end and a first fixed end disposed close to the third side relative to the first movable end; a second SMA cable comprising a second movable end and a second fixed end disposed close to the third side relative to the second movable end, wherein both the first movable end and the second movable end are fastened to an end of the second side close to the third side, wherein the first SMA cable intersects with the second SMA cable, and wherein the first SMA cable and the second SMA cable are symmetrically disposed relative to the third reference plane; a third SMA cable, wherein the third SMA cable and the first SMA cable are symmetrically disposed relative to the second reference plane; a fourth SMA cable, wherein the fourth SMA cable and the second SMA cable are symmetrically disposed relative to the second reference plane; a fifth SMA cable, wherein the fifth SMA cable and the third SMA cable are symmetrically disposed relative to the first reference plane; a sixth SMA cable, wherein the sixth SMA cable and the fourth SMA cable are symmetrically disposed relative to the first reference plane; a seventh SMA cable, wherein the seventh SMA cable and the fifth SMA cable are symmetrically disposed relative to the second reference plane; and an eighth SMA cable, wherein the eighth SMA cable and the sixth SMA cable are symmetrically disposed relative to the second reference plane. ### Claim 12 (depends on 10) The electronic device of claim 10, wherein the SMA motor further comprises a circuit board located between the motor frame and the module frame, and wherein the image sensor is electrically connected to the circuit board through a plurality of bonding wires. ### Claim 13 (depends on 10) The electronic device of claim 10, wherein the SMA motor further comprises a circuit board located between the motor frame and the module frame, wherein the image sensor is electrically connected to the carrier through a plurality of bonding wires, and wherein the carrier is electrically connected to the circuit board through a connecting wire. ### Claim 14 (depends on 12) The electronic device of claim 12, wherein the camera system further comprises: a first electric-conductor disposed on the carrier and electrically connected to the movable end; and a second electric-conductor disposed on the motor frame and electrically connects the circuit board to the fixed end, wherein the SMA motor further comprises a conductive connecting piece that electrically connects the first electric-conductor to the circuit board. ### Claim 15 (depends on 14) The electronic device of claim 14, wherein the conductive connecting piece is a spring and located between the carrier and the motor frame, and wherein the motor frame further comprises a third electric-conductor that electrically connects the conductive connecting piece to the circuit board. ### Claim 16 (depends on 14) The electronic device of claim 14, wherein the conductive connecting piece is a conducting wire and is connected to the circuit board. ### Claim 17 (depends on 9) The electronic device of claim 9, wherein the SMA motor is further configured to actuate the image sensor to rotate to tilt relative to the optical axis. ### Claim 18 (depends on 1) The camera system of claim 1, wherein the SMA motor is further configured to actuate the image sensor to rotate to tilt relative to the optical axis.