# US 12,112,617 B2 · Driving mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,617 B2 - Document ID: US12112617B2 - Status: Granted - Kind: B2 - Application number: 17/882,867 - Filed: 2022-08-08 - Published: 2023-02-09 - Granted: 2024-10-08 - Earliest claimed: 2021-08-09 - Assignees: TDK Taiwan Corp. - Applicants: TDK Taiwan Corp. - Inventors: Chao-Hsi Wang; Xuan-Huan Su; Kuen-Wang Tsai; Chao-Chang Hu - Web page: https://patentgrep.com/patent/US12112617B2 ## CPC - G08B 6/00: Tactile signalling systems, e.g. tactile personal calling systems - G02B 7/08: adapted to co-operate with a remote control mechanism - G02B 7/09: adapted for automatic focusing or varying magnification - 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)} - G03B 3/10: Power-operated focusing - G03B 5/00: Adjustment of optical system relative to image or object surface other than for focusing - G03B 9/40: Double plate - G03B 13/36: Autofocus systems - 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 11/21: Devices for sensing speed or position, or actuated thereby (specially adapted for machines having non-mechanical commutating devices H02K29/06, H02K29/14) - H02K 41/0354: {Lorentz force motors, e.g. voice coil motors} - H04N 23/51: Housings - H04N 23/54: Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils - 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 - H05K 1/181: associated with surface mounted components - 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 - H05K 2201/10916: Terminals having auxiliary metallic piece, e.g. for soldering - G08B: SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS - 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}) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A driving mechanism for moving a flat optical element is provided. The driving mechanism includes a fixed part, a movable member, and a driving assembly. The movable member is movably disposed on the fixed part and connected to the optical element. The driving assembly is configured to impel the movable member and the optical element to move relative to the fixed part. The driving assembly has a coil disposed on the fixed part. ## Claims ### Claim 1 A driving mechanism for moving a flat optical element, comprising: a fixed part; a movable member, movably disposed on the fixed part and connected to the optical element; a slider, having a hinge pivotally connected to the movable member; a driving assembly, configured to impel the movable member and the optical element to move relative to the fixed part, wherein the driving assembly has a coil disposed on the fixed part and a magnetic element disposed on the slider; and a yoke, extending through the coil; wherein the hinge and the magnetic element are located on opposite sides of the slider, and the polar direction of the magnetic element is perpendicular to a central axis of the coil; wherein when a current signal is applied to the coil, the coil and the magnetic element generate an electromagnetic force to impel the slider and the magnetic element in a linear direction relative to the coil, and the movable member is forced to rotate relative to the fixed part along a curved path, wherein the linear direction is parallel to the central axis. ### Claim 2 (depends on 1) The driving mechanism as claimed in claim 1, wherein the yoke is disposed on the fixed part, and the coil and the fixed part do not contact each other. ### Claim 3 (depends on 1) The driving mechanism as claimed in claim 1, wherein the fixed part has a quadrilateral structure, and the central axis of the coil is angled relative to one side of the quadrilateral structure. ### Claim 4 (depends on 3) The driving mechanism as claimed in claim 3, wherein the coil is located adjacent to a corner of the fixed part. ### Claim 5 (depends on 1) The driving mechanism as claimed in claim 1, further comprising two driving assemblies disposed on opposite sides of the movable member. ### Claim 6 (depends on 5) The driving mechanism as claimed in claim 5, wherein the driving assemblies generate two electromagnetic forces in opposite directions. ### Claim 7 (depends on 5) The driving mechanism as claimed in claim 5, wherein the driving assemblies generate two electromagnetic forces in the same direction. ### Claim 8 (depends on 1) The driving mechanism as claimed in claim 1, wherein the driving mechanism is configured to move a plurality of flat optical elements relative to the fixed part, and the fixed part forms a stepped structure and a depressed region adjacent to each other, wherein a first group of the optical elements are disposed on the stepped structure, a second group of the optical elements are disposed in the depressed region, and the first group of the optical elements do not contact the second group of the optical elements. ### Claim 9 (depends on 1) The driving mechanism as claimed in claim 1, wherein the driving mechanism is configured to move a plurality of flat optical elements relative to the fixed part, and the optical elements partially overlap when viewed in a vertical direction, wherein the vertical direction is perpendicular to the optical elements. ### Claim 10 (depends on 9) The driving mechanism as claimed in claim 9, wherein the optical elements constitute a C-shaped structure, and an opening is formed between the optical elements. ### Claim 11 (depends on 1) The driving mechanism as claimed in claim 1, wherein the fixed part includes a lower case and an upper case connected to each other, the movable member is rotatably received in a recess of the upper case, and the optical element is disposed on the movable member. ### Claim 12 (depends on 11) The driving mechanism as claimed in claim 11, wherein the lower case forms a lower rectangular opening and a lower curved opening, and the upper case forms an upper rectangular opening and an upper curved opening, wherein the lower rectangular opening is communicated with the upper rectangular opening, and the lower curved opening is communicated with the upper curved opening. ### Claim 13 (depends on 11) The driving mechanism as claimed in claim 11, wherein the movable member has a protrusion extending through the optical element. ### Claim 14 A driving mechanism for moving a flat optical element, comprising: a fixed part; a movable member, movably disposed on the fixed part and connected to the optical element; a driving assembly, configured to impel the movable member and the optical element to move relative to the fixed part, wherein the driving assembly has a coil disposed on the fixed part; a slider that has a hinge pivotally connected to the movable member, wherein the driving assembly further has a magnetic element disposed on the slider, and the hinge and the magnetic element are located on opposite sides of the slider; a circuit board; a magnet, disposed on the movable member; and a Hall effect sensor, disposed on the circuit board, wherein the magnet and the Hall effect sensor are accommodated in an opening of the fixed part. ### Claim 15 (depends on 14) The driving mechanism as claimed in claim 14, wherein the polar directions of the magnetic element and the magnet are parallel to each other. ### Claim 16 (depends on 14) The driving mechanism as claimed in claim 14, further comprising a block disposed on the movable member, wherein the magnet and the block are located on opposite sides of the movable member.