# US 10,502,974 B2 · Dual-lens camera system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,502,974 B2 - Document ID: US10502974B2 - Status: Granted - Kind: B2 - Application number: 16/235,085 - Filed: 2018-12-28 - Published: 2019-05-09 - Granted: 2019-12-10 - Earliest claimed: 2016-04-28 - Assignees: TDK Taiwan Corp. - Applicants: TDK Taiwan Corp. - Inventors: Chao-Chang Hu; Bing-Ru Song - Web page: https://patentgrep.com/patent/US10502974B2 ## CPC - G02B 7/08: adapted to co-operate with a remote control mechanism - G02B 27/646: {compensating for small deviations, e.g. due to vibration or shake (movement of one or more optical elements for control of motion blur in cameras, projectors or printers G03B2205/0007; image stabilisation in cameras peculiar to the presence or use of an electronic image sensor H04N23/68)} - G02B 7/001: {Counterbalanced structures, e.g. surgical microscopes} - G02B 7/09: adapted for automatic focusing or varying magnification - G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing - G03B 5/02: Lateral adjustment of lens - G03B 29/00: Combinations of cameras, projectors or photographic printing apparatus with non-photographic non-optical apparatus, e.g. clocks or weapons; Cameras having the shape of other objects (combinations with flash apparatus G03B15/03) - G03B 37/00: Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe - G03B 2205/0015: by displacing one or more optical elements normal to the optical axis - H04N 23/68: for stable pick-up of the scene, e.g. compensating for camera body vibrations - H04N 23/687: {by shifting the lens or sensor position} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A dual-lens camera system is provided, including a first lens driving module and a second lens driving module each including a lens holder for receiving a lens, at least one magnetic element, and a driving board. The driving board has at least one driving coil for acting with the magnetic element to generate an electromagnetic force to move the lens holder along a direction that is perpendicular to the optical axis of the lens. On two adjacent sides parallel to each other of the first and second lens driving modules, the magnetic elements are arranged in different configurations. ## Claims ### Claim 1 A dual-lens camera system, comprising a first lens driving module and a second lens driving module, the first and second lens driving modules being arranged in a long-axis direction, wherein the first lens driving module comprising: a first lens holder configured to receive a first lens; at least one first magnetic element; and at least one first driving coil configured to act with the first magnetic element to generate an electromagnetic force to move the first lens holder and the first lens along a first direction; and the second lens driving module comprising: a second lens holder configured to receive a second lens; at least one second magnetic element; and at least one second driving coil configured to act with the second magnetic element to generate an electromagnetic force to move the second lens holder and the second lens along the first direction; wherein a first side of the first lens driving module and a second side of the second lens driving module are parallel to and adjacent to each other, and the at least one second magnetic element is partially disposed on the second side, the first magnetic element disposed on a third side different from the first side in the first lens driving module having strip structure extending along the long-axis direction, and the first magnetic element is not disposed on the first side. ### Claim 2 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the first lens driving module further comprises a first housing, the second lens driving module further comprises a second housing, and parts of the first and second housings are disposed between the first and second magnetic elements. ### Claim 3 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the second lens driving module further comprising: a frame, wherein the second lens holder is movably connected to the frame; and a base, wherein the frame is movably connected to the base, and the second magnetic element is disposed on the frame. ### Claim 4 (depends on 3) The dual-lens camera system as claimed in claim 3, wherein the second lens driving module further comprises an elastic element elastically connecting the frame and the second lens holder, and the elastic element and the frame are partially overlapped when viewed along a direction perpendicular to an optical axis of the second lens. ### Claim 5 (depends on 4) The dual-lens camera system as claimed in claim 4, wherein the second lens driving module further comprises a plurality of second magnetic elements disposed around the second lens holder. ### Claim 6 (depends on 5) The dual-lens camera system as claimed in claim 5, wherein the second lens driving module has a rectangular shape and the second magnetic elements are respectively disposed at corners of the second lens driving module, when viewed along a direction of the optical axis of the second lens. ### Claim 7 (depends on 6) The dual-lens camera system as claimed in claim 6, wherein each of the second magnetic elements disposed at the corners of the second lens driving module have a triangular structure. ### Claim 8 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the first magnetic element disposed on a fourth side opposite to the third side in the first lens driving module having strip structure extending along the long-axis direction. ### Claim 9 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the second magnetic element disposed on the second side having strip structure extending along a direction different from the long-axis direction. ### Claim 10 (depends on 9) The dual-lens camera system as claimed in claim 9, wherein a side opposite to the first side in the first lens driving module is provided with the first magnetic element, and a weight balancer is disposed on the first side for maintaining the weight balance of the first lens driving module. ### Claim 11 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the first lens driving module further comprises a magnet disposed on a second side opposite the first side, and the width of the magnet is greater than the width of the magnetic element of the first lens driving module. ### Claim 12 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the magnetic pole direction of the magnetic element of the first lens driving module is parallel to the optical axis of the lens. ### Claim 13 (depends on 1) The dual-lens camera system as claimed in claim 1, further comprising a position sensing assembly disposed on the first side or the second side. ### Claim 14 (depends on 13) The dual-lens camera system as claimed in claim 13, wherein the position sensing assembly comprises a reference magnetic element and a magnetic field sensing element. ### Claim 15 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the first lens driving module further comprises a magnet and a magnetic field sensing element, the magnet and the magnetic field sensing element are disposed on a first side of the first lens driving module adjacent to the second lens driving module, and the magnetic field sensing element learns the position offset amount of the magnet by detecting the magnetic field variation of the magnet, and the magnet and the magnetic field sensing element do not overlap when viewed along the optical axis. ### Claim 16 (depends on 15) The dual-lens camera system as claimed in claim 15, wherein the first lens driving module further comprises two magnetic field sensing elements, the magnet and the magnetic field sensing elements are disposed on the first side, and the magnet is located between the magnetic field sensing elements. ### Claim 17 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the first lens driving module further comprises a shielding member having a portion disposed between the first and second magnetic elements for reducing the magnetic interference between the first and second lens driving modules. ### Claim 18 (depends on 17) The dual-lens camera system as claimed in claim 17, wherein the shielding member forms at least one recess corresponding to a top surface of the first lens holder of the first lens driving module for preventing the first lens holder from impacting the shielding member. ### Claim 19 (depends on 1) The dual-lens camera system as claimed in claim 1, wherein the magnetic elements comprise at least one multipole magnet. ### Claim 20 (depends on 19) The dual-lens camera system as claimed in claim 19, wherein the first magnetic element or the second magnetic element is the multipole magnet.