# US 2024/0201564 A1 · Camera actuator, and camera device and optical 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 2024/0201564 A1 - Document ID: US20240201564A1 - Status: Published application - Kind: A1 - Application number: 18/286,396 - Filed: 2022-04-14 - Published: 2024-06-20 - Earliest claimed: 2021-04-15 - Assignees: LG Innotek Co., Ltd. - Applicants: LG Innotek Co., Ltd. - Inventors: Sang Jun MIN; Tae Jin JUNG - Web page: https://patentgrep.com/patent/US20240201564A1 ## CPC - H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils - G02B 7/021: {for more than one lens} - G02B 13/0065: {having a beam-folding prism or mirror} - G03B 3/10: Power-operated focusing - G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing - G03B 17/12: with means for supporting objectives, supplementary lenses, filters, masks, or turrets - G03B 17/17: with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera - 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 - H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) - H02K 33/12: with armatures moving in alternate directions by alternate energisation of two coil systems - 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 23/60: Control of cameras or camera modules - H04N 23/687: {by shifting the lens or sensor position} - G03B 2205/0046: Movement of one or more optical elements for zooming - G03B 2205/0069: using electromagnetic actuators, e.g. voice coils - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - 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 Disclosed in an embodiment of the present invention is a camera actuator comprising: a housing; a first lens assembly and a second lens assembly, moving in an optical axis direction with respect to the housing; and a driver unit for moving the first lens assembly and the second lens assembly, wherein the driver unit comprises: a driver coil; and a driver magnet facing the driver coil, and the driver coil comprises: a first pattern area; and a second pattern area arranged in a direction perpendicular to the first pattern area, wherein a width of the first pattern area differs from a width of the second pattern area. ## Claims ### Claim 1 A camera actuator comprising: a housing; a first lens assembly and a second lens assembly configured to move in an optical axis direction based on the housing; and a driving unit configured to move the first lens assembly and the second lens assembly, wherein the driving unit includes a driving coil and a driving magnet facing the driving coil, wherein the driving coil includes a first pattern area and a second pattern area disposed in a direction perpendicular to the first pattern area, and wherein a width of the first pattern area differs from a width of the second pattern area. ### Claim 2 (depends on 1) The camera actuator of claim 1, wherein the driving coil includes: a third pattern area facing the first pattern area; and a fourth pattern area facing the second pattern area, and wherein a width of the fourth pattern area is larger than a width of the third pattern area. ### Claim 3 (depends on 2) The camera actuator of claim 2, wherein the driving coil includes a curve pattern area connecting the first pattern area to the second pattern area. ### Claim 4 (depends on 3) The camera actuator of claim 3, wherein the curve pattern area includes a first curve pattern area to a fourth curve pattern area. ### Claim 5 (depends on 1) The camera actuator of claim 1, wherein the width of the first pattern area is smaller than the width of the second pattern area. ### Claim 6 (depends on 1) The camera actuator of claim 1, wherein the driving coil is formed with a plurality of turns. ### Claim 7 (depends on 6) The camera actuator of claim 6, wherein the width of the first pattern area is smaller than the width of the second pattern area. ### Claim 8 (depends on 4) The camera actuator of claim 4, wherein the first pattern area is disposed at one side, wherein the second pattern area is disposed to be spaced apart from the first pattern area, and wherein the third pattern area is disposed to be spaced apart from the fourth pattern area. ### Claim 9 (depends on 8) The camera actuator of claim 8, wherein an innermost turn among a plurality of turns of the driving coil has a first point which is one end of any one of the first pattern area and the third pattern area, wherein an outermost turn among the plurality of turns of the driving coil has a second point which is one end of any one of the first pattern area and the third pattern area, and wherein a virtual line connecting the first point to the second point is inclined at a first angle with respect to an optical axis. ### Claim 10 (depends on 9) The camera actuator of claim 9, wherein the first curve pattern area is an area in which a width of the first curved area is changed, and a first angle between a first boundary line in contact with the first pattern area and a second boundary line in contact with the second pattern area is in a range of 20 to 45 degrees. ### Claim 11 (depends on 9) The camera actuator of claim 9, wherein the first angle may be in a range of 20 to 45 degrees. ### Claim 12 (depends on 1) The camera actuator of claim 1, wherein a maximum moving distance of the driving magnet may be larger than or equal to the width of the second pattern area. ### Claim 13 (depends on 1) The camera actuator of claim 1, wherein a ratio of the width of the first pattern area to the width of the second pattern area may be in a range of 1:1.5 to 1:4.5. ### Claim 14 (depends on 13) The camera actuator of claim 13, wherein the width of the first pattern area may be a length in a vertical direction between an innermost turn and an outermost turn among the plurality of turns in the first pattern area, and the width of the second pattern area may be a length in an optical axis direction between an innermost turn and an outermost turn among the plurality of turns in the second pattern area. ### Claim 15 (depends on 2) The camera actuator of claim 2, wherein a ratio of a first width to a second width may be in a range of 1:1.5 to 1:4, the first width may be a distance in the vertical direction between the outermost turn among the plurality of turns in the first pattern area and the outermost turn among the plurality of turns in the third pattern area, and the second width may be a distance in the optical axis direction between the outermost turn among the plurality of turns in the second pattern area and the outermost turn among the plurality of turns in the fourth pattern area. ### Claim 16 (depends on 2) The camera actuator of claim 2, wherein a ratio of a third width to a fourth width may be in a range of 1:1.5 to 1:2.5, the third width may be a distance in the vertical direction between the innermost turn among the plurality of turns in the first pattern area and the innermost turn among the plurality of turns in the second pattern area, and the fourth width may be a distance in the optical axis direction between the innermost turn among the plurality of turns in the third pattern area and the innermost turn among the plurality of turns in the fourth pattern area. ### Claim 17 (depends on 3) The camera actuator of claim 3, wherein a width of the curve pattern area may decrease as the width approaches the first pattern area or the third pattern area. ### Claim 18 (depends on 1) The camera actuator of claim 1, wherein a surface of the driving magnet facing the driving coil may include a first magnet area having a first polarity, and a second magnet area having a second polarity, and the first polarity may be opposite to the second polarity. ### Claim 19 (depends on 18) The camera actuator of claim 18, wherein the first magnet area and the second magnet area may be spaced apart from each other in the optical axis direction. ### Claim 20 (depends on 19) The camera actuator of claim 19, wherein a lengths of the first magnet area and the second magnet area in the vertical direction may be smaller than a length of the second pattern area in the vertical direction.