# US 2025/0093741 A1 · Optical unit > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0093741 A1 - Document ID: US20250093741A1 - Status: Published application - Kind: A1 - Application number: 18/826,132 - Filed: 2024-09-05 - Published: 2025-03-20 - Earliest claimed: 2023-09-14 - Assignees: Nidec Instruments Corporation - Applicants: Nidec Instruments Corporation - Inventors: Shinji MINAMISAWA - Web page: https://patentgrep.com/patent/US20250093741A1 ## CPC - G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing - 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 2205/0023: by tilting or inclining one or more optical elements with respect to the optical axis - G03B 2205/0069: using electromagnetic actuators, e.g. voice coils - H04M 1/0264: {for a camera module assembly} - 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 An optical unit includes a movable body having an optical module, a fixed body which holds the movable body, and a drive mechanism for turning the movable body with respect to the fixed body so that an optical axis of the optical module is inclined. The drive mechanism includes a drive magnet attached to the movable body and a drive coil attached to the fixed body. The drive magnet and the drive coil face each other in a direction perpendicular to an optical axis direction of the optical module when the optical module is located at a predetermined reference position. The drive magnet is magnetized in the optical axis direction, and a magnetic pole of one face of the drive magnet in the optical axis direction and a magnetic pole of the other face of the drive magnet in the optical axis direction are different from each other. ## Claims ### Claim 1 An optical unit comprising: a movable body having an optical module; a fixed body holding the movable body; and a drive mechanism structured to turn the movable body with respect to the fixed body so that an optical axis of the optical module is inclined; wherein the drive mechanism comprises a drive magnet attached to the movable body and a drive coil attached to the fixed body; the drive magnet and the drive coil face each other in a direction perpendicular to an optical axis direction which is a direction of the optical axis of the optical module when the optical module is located at a predetermined reference position; the drive magnet is magnetized in the optical axis direction; and a magnetic pole of one of faces of the drive magnet in the optical axis direction and a magnetic pole of an other of the faces of the drive magnet in the optical axis direction are different from each other. ### Claim 2 (depends on 1) The optical unit according to claim 1, wherein in a case that a predetermined direction perpendicular to the optical axis direction when the optical module is located at the reference position is defined as a first direction, and a direction perpendicular to the optical axis direction and the first direction when the optical module is located at the reference position is referred to as a second direction, the drive mechanism comprises: as the drive magnet, a first drive magnet turning the movable body with respect to the fixed body with the first direction as an axial direction of turning, and a second drive magnet turning the movable body with respect to the fixed body with the second direction as an axial direction of turning, and as the drive coil, a first drive coil disposed to face the first drive magnet in the second direction, and a second drive coil disposed to face the second drive magnet in the first direction. ### Claim 3 (depends on 2) The optical unit according to claim 2, further comprising an intermediate member turnably holding the movable body, wherein the fixed body turnably holds the intermediate member. ### Claim 4 (depends on 1) The optical unit according to claim 1, wherein the optical module is a camera module. ### Claim 5 (depends on 1) The optical unit according to claim 1, wherein in a case that a direction in which the drive magnet and the drive coil face each other when the optical module is located at the reference position is defined as a facing direction, when viewed in the facing direction in a state that the optical module is located at the reference position, a center of the drive magnet and a center of the drive coil are coincided with each other. ### Claim 6 (depends on 5) The optical unit according to claim 5, wherein a width of the drive magnet in the optical axis direction is smaller than a width of the drive coil in the optical axis direction when the optical module is located at the reference position. ### Claim 7 (depends on 1) The optical unit according to claim 1, wherein in a case that a direction in which the drive magnet and the drive coil face each other when the optical module is located at the reference position is defined as a facing direction, a thickness of the drive magnet in the facing direction when the optical module is located at the reference position is larger than a thickness of the drive coil in the facing direction. ### Claim 8 (depends on 1) The optical unit according to claim 1, wherein the movable body comprises a holder made of resin to which the optical module is fixed, and the drive magnet is directly fixed to the holder.