# US 12,216,394 B2 · Lens driving device and camera device comprising same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,394 B2 - Document ID: US12216394B2 - Status: Granted - Kind: B2 - Application number: 17/548,952 - Filed: 2021-12-13 - Published: 2022-03-31 - Granted: 2025-02-04 - Earliest claimed: 2018-04-05 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Sang Jun Min - Web page: https://patentgrep.com/patent/US12216394B2 ## CPC - G03B 5/02: Lateral adjustment of lens - G03B 19/22: Double cameras - G02B 7/022: {lens and mount having complementary engagement means, e.g. screw/thread} - G02B 7/06: Focusing binocular pairs - G03B 3/10: Power-operated focusing - G03B 17/00: Details of cameras or camera bodies; Accessories therefor (lens hoods or caps G03B11/04) - 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 - G03B 2205/0015: by displacing one or more optical elements normal to the optical axis - G03B 2205/0069: using electromagnetic actuators, e.g. voice coils - H02K 41/0354: {Lorentz force motors, e.g. voice coil motors} - 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) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract The present embodiment relates to a lens driving device comprising: a housing comprising a first hole and a second hole; a first bobbin disposed in the first hole of the housing; a second bobbin disposed in the second hole of the housing; a first coil disposed on the first bobbin; a second coil disposed on the second bobbin; a first magnet disposed in the housing to face the first coil; a second magnet facing the second coil; and a third magnet disposed between the first coil and the second coil. ## Claims ### Claim 1 A camera device comprising: a first bobbin; a second bobbin disposed apart from the first bobbin; a first coil disposed on the first bobbin; a second coil disposed on the second bobbin; a driving magnet comprising a first magnet facing the first coil and a second magnet facing the second coil; a first sensing magnet disposed on the first bobbin; a first substrate spaced apart from the first bobbin; and a first sensor disposed on the first substrate and configured to sense the first sensing magnet. ### Claim 2 (depends on 1) The camera device of claim 1, comprising: a second sensing magnet disposed on the second bobbin, a second substrate spaced apart from the second bobbin; and a second sensor disposed on the second substrate and configured to sense the second sensing magnet. ### Claim 3 (depends on 2) The camera device of claim 2, comprising: a first lens coupled to the first bobbin; and a second lens coupled to the second bobbin, wherein the first sensing magnet is overlapped with the second sensing magnet in a direction from a first optical axis of the first lens toward a second optical axis of the second lens. ### Claim 4 (depends on 2) The camera device of claim 2, comprising a second compensation magnet disposed on the second bobbin, wherein the second compensation magnet is disposed opposite to the second sensing magnet with respective to a center axis of the second bobbin. ### Claim 5 (depends on 2) The camera device of claim 2, comprising a housing comprising a first hole and a second hole, wherein the first bobbin is disposed in the first hole of the housing, wherein the second bobbin is disposed in the second hole of the housing, wherein the driving magnet is disposed on the housing. ### Claim 6 (depends on 5) The camera device of claim 5, wherein the housing comprises first and second lateral surfaces opposite to each other, third and fourth lateral surfaces opposite to each other, a first corner formed by the first and third lateral surfaces, a second corner formed by the second and third lateral surfaces, a third corner formed by the second and fourth lateral surfaces, and a fourth corner formed by the first and fourth lateral surfaces, wherein the first sensing magnet is disposed at a position corresponding to the first corner of the housing, and wherein the second sensing magnet is disposed at a position corresponding to the fourth corner of the housing. ### Claim 7 (depends on 5) The camera device of claim 5, wherein the driving magnet comprises seven magnets disposed on the housing and spaced apart from each other. ### Claim 8 (depends on 7) The camera device of claim 7, comprising: a base; and a third coil disposed on the base, wherein the housing is disposed on the base, and wherein the third coil comprises seven coils disposed at positions corresponding with the seven magnets, respectively. ### Claim 9 (depends on 2) The camera device of claim 2, comprising a second upper elastic member coupled to the second bobbin and comprising four second upper elastic units, and wherein the four second upper elastic units are electrically connected to the second substrate. ### Claim 10 (depends on 9) The camera device of claim 9, comprising a second wire coupled with the second upper elastic member, wherein the second wire comprises four second wires electrically connected with the four second upper elastic units, respectively. ### Claim 11 (depends on 1) The camera device of claim 1, comprising a first compensation magnet disposed on the first bobbin, wherein the first compensation magnet is disposed opposite to the first sensing magnet with respective to a center axis of the first bobbin. ### Claim 12 (depends on 1) The camera device of claim 1, comprising a first upper elastic member coupled to the first bobbin and comprising four first upper elastic units, and wherein the four first upper elastic units are electrically connected to the first substrate. ### Claim 13 (depends on 12) The camera device of claim 12, comprising: a base disposed below the first bobbin; a third substrate disposed on the base; and a third coil disposed on the third substrate and disposed at a position corresponding to the driving magnet. ### Claim 14 (depends on 13) The camera device of claim 13, comprising: a first wire connecting the first upper elastic member and the third substrate; wherein the first wire comprises four first wires electrically connected to the four first upper elastic units, respectively. ### Claim 15 (depends on 13) The camera device of claim 13, comprising third and fourth Hall sensors disposed on the third substrate and configured to sense the driving magnet. ### Claim 16 (depends on 12) The camera device of claim 12, comprising: a first lower elastic member coupled to the first bobbin and spaced apart from the first upper elastic member, wherein the first lower elastic member comprises two first lower elastic units electrically connecting the first substrate and the first coil. ### Claim 17 (depends on 1) The camera device of claim 1, wherein the driving magnet comprises a third magnet disposed between the first coil and the second coil. ### Claim 18 (depends on 1) The camera device of claim 1, wherein a polarity of one surface of the first magnet facing the first coil is different from a polarity of one surface of the second magnet facing the second coil. ### Claim 19 (depends on 1) The camera device of claim 1, comprising: a printed circuit board; and first and second image sensors disposed on the printed circuit board. ### Claim 20 (depends on 19) An optical apparatus comprising: a main body; the camera device of claim 19 disposed on the main body; and a display disposed on the main body and outputting an image captured by the camera device.