# US 11,079,565 B2 · Optical system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,079,565 B2 - Document ID: US11079565B2 - Status: Granted - Kind: B2 - Application number: 16/711,984 - Filed: 2019-12-12 - Published: 2020-04-16 - Granted: 2021-08-03 - Earliest claimed: 2016-10-07 - Assignees: TDK Taiwan Corp. - Applicants: TDK Taiwan Corp. - Inventors: Fu-Yuan Wu; Kuo-Chun Kao; Nai-Wen Hsu; Shih-Ting Huang; Shao-Chung Chang; Sin-Jhong Song - Web page: https://patentgrep.com/patent/US11079565B2 ## CPC - G02B 7/023: {permitting adjustment} - G02B 7/021: {for more than one lens} - G02B 7/04: with mechanism for focusing or varying magnification - G02B 7/08: adapted to co-operate with a remote control mechanism - 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 13/36: Autofocus systems - 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) ## Abstract An optical system includes a base, a first lens driving module, and a second lens driving module. The first lens driving module includes a first lens holder, a first magnet, and a first coil. The first lens holder is configured to hold a first optical element. The first coil corresponding to the first magnet is configured to drive the first lens holder to move relative to the base. The second lens driving module includes a second lens holder, a second magnet, and a second coil. The second lens holder is configured to hold a second optical element. The second coil corresponding to the second magnet is configured to drive the second lens holder to move relative to the base. The first magnet is disposed between the first and second lens holders, and no other magnet is disposed between the first and second lens holders except the first magnet. ## Claims ### Claim 1 An optical system with a centerline, comprising: a fixed part; a first optical element driving module, comprising: a first holder, connecting a first optical element with a first optical axis; a first driving assembly, driving the first holder to move relative to the fixed part; a second optical element driving module, comprising: a second holder, connecting a second optical element with a second optical axis; and a second driving assembly, driving the second holder to move relative to the fixed part; wherein the centerline is located between the first holder and the second holder; wherein when viewed along the first optical axis, a minimum distance between the first optical axis and the centerline is different than a minimum distance between the second optical axis and the centerline. ### Claim 2 (depends on 1) The optical system as claimed in claim 1, wherein the minimum distance between the first optical axis and the centerline is smaller than the minimum distance between the second optical axis and the centerline. ### Claim 3 (depends on 1) The optical system as claimed in claim 1, wherein the first driving assembly comprises a first magnetic element which is rectangular-shaped. ### Claim 4 (depends on 3) The optical system as claimed in claim 3, wherein the first magnetic element is not disposed between the first optical axis and the second optical axis. ### Claim 5 (depends on 3) The optical system as claimed in claim 3, wherein the first optical element driving module further comprises a first side adjacent to the second optical element driving module, wherein the first magnetic element is not disposed at the first side. ### Claim 6 (depends on 3) The optical system as claimed in claim 3, wherein the first magnetic element extends along a direction that is perpendicular to the first optical axis. ### Claim 7 An optical system with a first direction and a second direction perpendicular to each other, comprising: a fixed part; a first optical element driving module, comprising: a first holder, connecting a first optical element with a first optical axis; a first driving assembly, driving the first holder to move relative to the fixed part and comprising a first coil with a first winding axis; a second optical element driving module, comprising: a second holder, connecting a second optical element with a second optical axis; and a second driving assembly, driving the second holder to move relative to the fixed part and comprising a second coil with a second winding axis; wherein the first optical element driving module and the second optical element driving module are arranged along the second direction; wherein the first winding axis is not parallel to the second winding axis. ### Claim 8 (depends on 7) The optical system as claimed in claim 7, wherein the first winding axis is parallel to the first optical axis and the second winding axis is perpendicular to the second optical axis. ### Claim 9 (depends on 7) The optical system as claimed in claim 7, wherein when viewed along the first winding axis, the first coil is polygonal-shaped and surrounds a periphery of the first holder. ### Claim 10 (depends on 7) The optical system as claimed in claim 7, wherein when viewed along the second winding axis, the second coil is elliptical-shaped. ### Claim 11 (depends on 7) The optical system as claimed in claim 7, wherein when viewed along the first optical axis, the first coil comprises a first portion and a second portion, wherein an extending direction of the first portion is different than an extending direction of the second portion. ### Claim 12 (depends on 11) The optical system as claimed in claim 11, wherein when viewed along the first optical axis, an extending length of the first portion is different than an extending length of the second portion. ### Claim 13 (depends on 12) The optical system as claimed in claim 12, wherein the first driving assembly further comprises a first magnetic element corresponding to the first portion. ### Claim 14 (depends on 13) The optical system as claimed in claim 13, wherein the extending length of the first portion is larger than the extending length of the second portion. ### Claim 15 (depends on 7) The optical system as claimed in claim 7, wherein the first driving assembly further comprises a first magnetic element and the second driving assembly further comprises a second magnetic element, wherein an extending direction of the first magnetic element is different than an extending direction of the second magnetic element. ### Claim 16 (depends on 15) The optical system as claimed in claim 15, wherein the extending direction of the first magnetic element is parallel to the first direction and the extending direction of the second magnetic element is parallel to the second direction. ### Claim 17 (depends on 7) The optical system as claimed in claim 7, wherein the first driving assembly further comprises a plurality of first magnetic elements and the second driving assembly further comprises a plurality of second magnetic elements, each of the first magnetic elements and the second magnetic elements comprises a center, and a connecting line passing through the center of each of the first magnetic elements is not parallel to a connecting line passing through the center of each of the second magnetic elements. ### Claim 18 (depends on 17) The optical system as claimed in claim 17, wherein the connecting line passing through the center of each of the first magnetic elements is perpendicular to the connecting line passing through the center of each of the second magnetic elements. ### Claim 19 (depends on 17) The optical system as claimed in claim 17, wherein the first magnetic elements are disposed at different sides of the first optical element driving module and the second magnetic elements are disposed at different sides of the second optical element driving module. ### Claim 20 (depends on 7) The optical system as claimed in claim 7, wherein when viewed along the second direction, the first coil at least partially overlaps the second coil.