# US 12,761,444 B2 · Lens driving apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,444 B2 - Document ID: US12761444B2 - Status: Granted - Kind: B2 - Application number: 18/152,934 - Filed: 2023-01-11 - Published: 2023-05-25 - Granted: 2026-10-13 - Earliest claimed: 2014-12-19 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Sang Ok Park; Hyune O Yoo; Seong Min Lee - Web page: https://patentgrep.com/patent/US12761444B2 ## CPC - G02B 7/102: {controlled by a microcomputer (cameras with interchangeable lenses G03B17/14)} - G02B 7/08: adapted to co-operate with a remote control mechanism - G02B 7/09: adapted for automatic focusing or varying magnification - G03B 3/10: Power-operated focusing - G03B 5/02: Lateral adjustment of lens - H02K 11/215: Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements - H02K 33/18: with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets - H02K 41/0356: {moving along a straight path} - 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 - 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) - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract One embodiment of a lens driving apparatus may comprise: a bobbin having a first coil disposed on the outer circumferential surface thereof; a position detection sensor which is disposed on the outer circumferential surface of the bobbin and which moves together with the bobbin; a first magnet disposed opposite to the first coil; a housing for supporting the first magnet; upper and lower elastic members which are coupled to the bobbin and the housing; and a plurality of wirings which are disposed on the outer circumferential surface of the bobbin so as to electrically connect at least one of the upper or lower elastic members with the position detection sensor. ## Claims ### Claim 1 A lens moving apparatus comprising: a circuit board; a housing disposed on the circuit board so as to be spaced apart from the circuit board; a bobbin disposed in the housing and comprising a supporting protrusion protruding from an upper surface of the bobbin; a first magnet disposed on the housing; a first coil disposed on the bobbin; a position sensor disposed on the bobbin; an upper elastic member comprising a hole coupled to the supporting protrusion of the bobbin; a conductive pattern disposed on an outer side surface of the bobbin and electrically connecting the position sensor and the upper elastic member; a second coil disposed under the first magnet so as to face the first magnet in an optical axis direction; a supporting member electrically connecting the upper elastic member and the circuit board; and a lower elastic member coupled to a lower portion of the bobbin and a lower portion of the housing, wherein an upper surface of the position sensor is positioned lower than the hole of the upper elastic member, wherein the first coil is configured to move the bobbin in an optical axis direction by an interaction with the first magnet, wherein the lower elastic member comprises first and second lower springs conductively connected to the first coil, wherein the upper elastic member comprises first and second upper springs corresponding to the first and second lower springs, and wherein the first lower spring is conductively connected to the first upper spring by a first electrical conduction member and the second lower spring is conductively connected to the second upper spring by a second electrical conduction member. ### Claim 2 (depends on 1) The lens moving apparatus according to claim 1, wherein the position sensor is soldered to one end of the conductive pattern. ### Claim 3 (depends on 2) The lens moving apparatus according to claim 2, wherein another end of the conductive pattern is connected to the upper elastic member, wherein the upper surface of the position sensor is positioned lower than the other end of the conductive pattern. ### Claim 4 (depends on 1) The lens moving apparatus according to claim 1, wherein the conductive pattern comprises a plurality of patterns and one end of each of the plurality of patterns is electrically connected to the position sensor. ### Claim 5 (depends on 4) The lens moving apparatus according to claim 4, wherein the upper elastic member comprises a plurality of elastic members connected to the plurality of patterns, respectively. ### Claim 6 (depends on 5) The lens moving apparatus according to claim 5, wherein the supporting member comprises a plurality of supporting members connected to the plurality of elastic members, respectively, wherein the upper surface of the position sensor is positioned lower than connecting portions of the plurality of supporting members and the plurality of elastic members. ### Claim 7 (depends on 1) The lens moving apparatus according to claim 1, wherein the position sensor is disposed to be spaced apart from the first coil in the optical axis direction. ### Claim 8 (depends on 1) The lens moving apparatus according to claim 1, wherein a lower surface of the position sensor is positioned higher than the first coil. ### Claim 9 (depends on 1) The lens moving apparatus according to claim 1, comprising a sensing magnet opposite the position sensor and disposed on the housing, and wherein an upper surface of the sensing magnet is positioned lower than the supporting protrusion of the bobbin. ### Claim 10 (depends on 1) The lens moving apparatus according to claim 1, wherein the second coil comprises a circuit member disposed on the circuit board and coils formed in the circuit member. ### Claim 11 (depends on 1) The lens moving apparatus according to claim 1, wherein one end of the supporting member is coupled to the upper elastic member by a solder, and wherein the upper surface of the position sensor is positioned lower than the one end of the supporting member. ### Claim 12 (depends on 11) The lens moving apparatus according to claim 11, wherein the position sensor is soldered to one end of the conductive pattern, wherein another end of the conductive pattern is connected to the upper elastic member, and wherein the upper surface of the position sensor is positioned lower than the other end of the conductive pattern. ### Claim 13 (depends on 1) The lens moving apparatus according to claim 1, wherein the bobbin. comprises a recess in which the position sensor is disposed, and one end of the conductive pattern is disposed in the recess, and the one end of the conductive pattern is connected to the position sensor. ### Claim 14 (depends on 1) A camera module comprising: a lens; the lens moving apparatus according to claim 1; and an image sensor. ### Claim 15 (depends on 1) The lens moving apparatus according to claim 1, wherein the support member and the electrical conduction member are disposed at a corner of the housing. ### Claim 16 A lens moving apparatus comprising: a circuit board; a housing disposed on the circuit board so as to be spaced apart from the circuit board; a bobbin disposed in the housing and comprising a supporting protrusion protruding from an upper surface of the bobbin; a first magnet disposed on the housing; a first coil disposed on the bobbin; a position sensor disposed on the bobbin; an upper elastic member coupled to the supporting protrusion of the bobbin; a conductive pattern disposed on an outer side surface of the bobbin and electrically connecting the position sensor and the upper elastic member; a supporting member comprising one end coupled to the upper elastic member and an other end electrically connected to the circuit board; and a lower elastic member coupled to a lower portion of the bobbin and a lower portion of the housing, wherein an upper surface of the position sensor is positioned lower than the one end of the supporting member, wherein the first coil is configured to move the bobbin in an optical axis direction by an interaction with the first magnet, wherein the lower elastic member comprises first and second lower springs conductively connected to the first coil, wherein the upper elastic member comprises first and second upper springs corresponding to the first and second lower springs, and wherein the first lower spring is conductively connected to the first upper spring by a first electrical conduction member and the second lower spring is conductively connected to the second upper spring by a second electrical conduction member. ### Claim 17 (depends on 16) The lens moving apparatus according to claim 16, wherein one end of the conductive pattern is soldered to the position sensor and an other end of the conductive pattern is soldered to the upper elastic member. ### Claim 18 (depends on 16) The lens moving apparatus according to claim 16, wherein the upper elastic member comprises a plurality of elastic members spaced apart from each other, and the conductive pattern comprises a plurality of patterns corresponding to the plurality of elastic members, and wherein each of the plurality of patterns is electrically connected to the corresponding one of the plurality of elastic members. ### Claim 19 (depends on 16) The lens moving apparatus according to claim 16, wherein the position sensor is disposed to be spaced apart from the first coil and a lower surface of the position sensor is positioned higher than the first coil. ### Claim 20 (depends on 16) The lens moving apparatus according to claim 16, comprising a sensing magnet opposite the position sensor and disposed on the housing, and wherein an upper surface of the sensing magnet is positioned lower than the supporting protrusion of the bobbin.