# US 12,181,658 B2 · Optical member driving mechanism > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,658 B2 - Document ID: US12181658B2 - Status: Granted - Kind: B2 - Application number: 18/321,960 - Filed: 2023-05-23 - Published: 2023-09-21 - Granted: 2024-12-31 - Earliest claimed: 2019-09-06 - Assignees: TDK Taiwan Corp. - Applicants: TDK Taiwan Corp. - Inventors: Sung-Mao Tsai; Shang-Hung Chen; Chia-Che Wu - Web page: https://patentgrep.com/patent/US12181658B2 ## CPC - G02B 7/08: adapted to co-operate with a remote control mechanism - G02B 26/08: for controlling the direction of light (in light guides G02B6/35) - G02B 7/02: for lenses {(supports for magnifying lenses G02B25/002)} - G02B 13/0015: {characterised by the lens design} - 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 17/17: 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 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence) - H02K 41/0356: {moving along a straight path} - H04M 1/0264: {for a camera module assembly} - H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof - G03B 2205/0046: Movement of one or more optical elements for zooming - G03B 2205/0053: Driving means for the movement of one or more optical element - H02K 2211/03: Machines characterised by circuit boards, e.g. pcb - 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}) - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An optical member driving mechanism is provided, including a first movable portion, a fixed portion, and a first driving assembly. The first movable portion is connected to an optical member. The first movable portion is movable relative to the fixed portion. The first driving assembly is configured to drive the first movable portion to move relative to the fixed portion. ## Claims ### Claim 1 An optical member driving mechanism, comprising: a first movable portion, configured to connect an optical member, wherein the optical member is configured to adjust an emission direction of light from an incident direction to an outgoing direction; a fixed portion, comprising a bottom and a back, wherein the back is parallel to the incident direction and is perpendicular to the bottom, and the first movable portion moves relative to the fixed portion; a first driving assembly, configured to drive the first movable portion to move relative to the fixed portion; a second movable portion; a second driving assembly, configured to drive the second movable portion to move relative to the first movable portion and the fixed portion, wherein at least a portion of the first driving assembly is disposed on the first movable portion, and at least a portion of the second driving assembly is disposed on the second movable portion; a position sensor, configured to detect a movement of the second movable portion, wherein the position sensor is disposed on the back; a first guiding member, disposed on the fixed portion; a second guiding member, disposed on the first movable portion and movably connected to the first guiding member, wherein the second driving assembly comprises a coil disposed on the back, and the first guiding member is disposed on the bottom; and an elastic member connecting an upper surface of the first movable portion to the second movable portion, wherein the fixed portion comprises a housing having a top wall, the upper surface faces the top wall, and the top wall is located at a side corresponding to the incident direction. ### Claim 2 (depends on 1) The optical member driving mechanism as claimed in claim 1, wherein the optical member is configured to adjust a emission direction of light from an incident direction to an outgoing direction, and the first driving assembly is configured to drive the first movable portion to rotate around a first rotation axis relative to the fixed portion, wherein the incident direction is not parallel to the outgoing direction, and the first rotation axis is parallel or perpendicular to the incident direction. ### Claim 3 (depends on 2) The optical member driving mechanism as claimed in claim 2, wherein the first driving assembly comprises a magnet and a coil respectively disposed on the first movable portion and the fixed portion, and the optical member driving mechanism further comprises a plurality of wires embedded in the fixed portion, wherein the wires are magnetic, and at least a portion of the wires corresponds to the magnet. ### Claim 4 (depends on 2) The optical member driving mechanism as claimed in claim 2, wherein the first driving assembly comprises a magnet and a coil respectively disposed on the first movable portion and the fixed portion, and the optical member driving mechanism further comprises a magnetic permeability member disposed on the fixed portion and corresponding to the magnet. ### Claim 5 (depends on 2) The optical member driving mechanism as claimed in claim 2, wherein the fixed portion comprises a base, wherein in the incident direction, a shortest distance between the first movable portion and the top wall is a first distance, a shortest distance between the second movable portion and the top distance is a third distance, and the first distance is different from the third distance. ### Claim 6 (depends on 5) The optical member driving mechanism as claimed in claim 5, wherein the first distance is less than the third distance. ### Claim 7 (depends on 2) The optical member driving mechanism as claimed in claim 2, wherein the optical member driving mechanism further comprises a shield member, disposed on an edge of the optical member. ### Claim 8 (depends on 1) The optical member driving mechanism as claimed in claim 1, wherein the first guiding member is a guiding slot, and the second guiding member is a ball. ### Claim 9 (depends on 8) The optical member driving mechanism as claimed in claim 8, wherein the first movable portion has a depression, and the ball is accommodated in the depression. ### Claim 10 (depends on 8) The optical member driving mechanism as claimed in claim 8, wherein the guiding slot has an arc structure. ### Claim 11 (depends on 10) The optical member driving mechanism as claimed in claim 10, wherein a center of the arc structure is aligned with a center of the optical member as seen from the incident direction. ### Claim 12 (depends on 1) The optical member driving mechanism as claimed in claim 1, wherein the fixed portion comprises a base, wherein in the incident direction, a shortest distance between the first movable portion and the top wall is a first distance, a shortest distance between the first movable portion and the base is a second distance, and the second guiding member has a thickness, wherein the thickness is greater than a sum of the first distance and the second distance. ### Claim 13 (depends on 1) The optical member driving mechanism as claimed in claim 1, wherein the first guiding member is a pillar, the second guiding member is a guiding slot, and the pillar protrudes from a surface of the fixed portion facing the second movable portion. ### Claim 14 (depends on 13) The optical member driving mechanism as claimed in claim 13, wherein the fixed portion further comprises a receiving recess, formed on the surface and surrounding the pillar. ### Claim 15 (depends on 13) The optical member driving mechanism as claimed in claim 13, wherein the guiding slot has an arc structure. ### Claim 16 (depends on 15) The optical member driving mechanism as claimed in claim 15, wherein a center of the arc structure is aligned with a center of the optical member as seen from the incident direction. ### Claim 17 (depends on 1) The optical member driving mechanism as claimed in claim 1, wherein the fixed portion comprises a base, and the second movable portion has a lower surface facing the base, wherein the elastic member is connected to the upper surface and the lower surface.