# US 11,906,807 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 11,906,807 B2
- Document ID: US11906807B2
- Status: Granted
- Kind: B2
- Application number: 17/651,758
- Filed: 2022-02-18
- Published: 2022-06-02
- Granted: 2024-02-20
- Earliest claimed: 2018-01-25
- Assignees: TDK Taiwan Corp.
- Applicants: TDK Taiwan Corp.
- Inventors: Kuo-Chun Kao; Meng-Ting Lin; I-Mei Huang; Sin-Jhong Song
- Web page: https://patentgrep.com/patent/US11906807B2

## CPC

- G03B 5/02: Lateral adjustment of lens
- F03G 7/0614: {using shape memory elements}
- F03G 7/06143: {Wires}
- G02B 3/04: with continuous faces that are rotationally symmetrical but deviate from a true sphere {, e.g. so called "aspheric" lenses}
- G02B 3/12: Fluid-filled or evacuated lenses
- G02B 3/14: of variable focal length
- G02B 5/005: {Diaphragms (for cameras G03B9/02)}
- G02B 6/0025: {Diffusing sheet or layer; Prismatic sheet or layer}
- G02B 6/0066: {characterised by the light source being coupled to the light guide}
- G02B 7/023: {permitting adjustment}
- G02B 7/08: adapted to co-operate with a remote control mechanism
- G02B 7/09: adapted for automatic focusing or varying magnification
- G02B 7/102: {controlled by a microcomputer (cameras with interchangeable lenses G03B17/14)}
- G02B 7/1805: {for prisms (G02B7/181 takes precedence)}
- G02B 7/182: for mirrors
- G02B 7/1821: {for rotating or oscillating mirrors}
- G02B 7/1828: {using magnetic means}
- G02B 13/0065: {having a beam-folding prism or mirror}
- G02B 13/0075: {having an element with variable optical properties}
- G02B 13/009: {having zoom function}
- G02B 26/004: {based on a displacement or a deformation of a fluid}
- G02B 26/0816: {by means of one or more reflecting elements}
- G02B 26/0883: {the refracting element being a prism}
- G02B 27/0068: {having means for controlling the degree of correction, e.g. using phase modulators, movable elements (controlling the phase of light using moving or deformable elements G02B26/06)}
- G02B 27/0955: {Lenses (lenses per se G02B3/00)}
- G02B 27/0972: {Prisms (prisms per se G02B5/04)}
- G02B 27/0977: {Reflective elements}
- 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 5/00: Adjustment of optical system relative to image or object surface other than for focusing
- G03B 9/04: Single movable plate with two or more apertures of graded size, e.g. sliding plate or pivoting plate
- G03B 9/06: Two or more co-operating pivoted blades, e.g. iris type (shutters functioning as diaphragms by limiting extent of opening movement G03B9/08)
- G03B 9/10: Blade or disc rotating or pivoting about axis normal to its plane
- G03B 9/14: Two separate members moving in opposite directions
- G03B 13/36: Autofocus systems
- 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
- G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]}
- G06F 1/1686: {the I/O peripheral being an integrated camera}
- G06T 7/521: from laser ranging, e.g. using interferometry; from the projection of structured light
- G06T 7/97: {Determining parameters from multiple pictures (depth or shape recovery from multiple images G06T7/55; stereo camera calibration G06T7/85)}
- G06T 15/08: Volume rendering
- G09G 5/003: {Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092)}
- H02K 41/0356: {moving along a straight path}
- H04N 23/45: for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
- 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 23/56: provided with illuminating means
- H04N 23/57: Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
- H04N 23/73: by influencing the exposure time
- G02B 5/003: {Light absorbing elements}
- G02B 13/004: {having four lenses}
- G03B 5/04: Vertical adjustment of lens; Rising fronts
- G03B 2205/0007: Movement of one or more optical elements for control of motion blur
- G03B 2205/0015: by displacing one or more optical elements normal to the optical axis
- 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
- G06T 2207/10028: Range image; Depth image; 3D point clouds
- G06T 2207/10048: Infrared image
- G09G 2354/00: Aspects of interface with display user
- 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)
- F03G: SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR (arrangements in connection with power supply in vehicles from force of nature B60K16/00; electric propulsion with power supply in vehicles from force of nature B60L8/00)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- 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

## Abstract

An optical system is provided, including a movable part, a fixed module, a driving assembly, a position sensor, and an electronic element. The movable part holds an optical element that defines an optical axis, and the fixed module is movably connected to the movable part and has a base. The driving assembly drives the movable part to move relative to the fixed module. The position sensor is disposed on the base for detecting the position of the movable part relative to the fixed module. The electronic element is disposed on the base, wherein the position sensor overlaps the electronic element when viewed along the optical axis.

## Claims

### Claim 1

An optical system, comprising:
a movable part for holding an optical element that defines an optical axis;
a fixed module, movably connected to the movable part and having a base;
a driving assembly, driving the movable part to move relative to the fixed module;
a position sensor, disposed on the base for detecting a position of the movable part relative to the fixed module; and
an electronic element disposed on the base, wherein the position sensor overlaps the electronic element when viewed along the optical axis;
wherein the driving assembly comprises a coil having a first winding portion and a second winding portion arranged along the optical axis, the first winding portion has a first section and a second section, and the second winding portion has a third section and a fourth section, wherein the first, second, third, and fourth sections are parallel to each other and perpendicular to the optical axis.

### Claim 2 (depends on 1)

The optical system as claimed in claim 1, wherein the driving assembly further comprises a first magnetic unit corresponding to the first section, a second magnetic unit corresponding to the second and third sections, and a third magnetic unit corresponding to the fourth section, wherein the first, second, and third magnetic units are arranged along the optical axis, and the polar direction of the second magnetic unit is different from that of the first and third magnetic units.

### Claim 3 (depends on 2)

The optical system as claimed in claim 2, wherein a width of the second magnetic unit along the optical axis is greater than that of the first magnetic unit or the third magnetic unit.

### Claim 4 (depends on 3)

The optical system as claimed in claim 3, wherein the width of the second magnetic unit along the optical axis is greater than 1.5 times of that of the first magnetic unit or the third magnetic unit.

### Claim 5 (depends on 3)

The optical system as claimed in claim 3, wherein a length of the first, second, third, and fourth sections along a first direction perpendicular to the optical axis is greater than that of the first, second, and third magnetic units.

### Claim 6 (depends on 5)

The optical system as claimed in claim 5, wherein when viewed along a second direction perpendicular to the optical axis during a movement of the movable part relative to the fixed module, the first section partially overlaps with the first magnetic unit, the second and third sections partially overlap with the second magnetic unit, and the fourth section partially overlaps with the third magnetic unit.

### Claim 7 (depends on 6)

The optical system as claimed in claim 6, wherein when viewed along the second direction during the movement of the movable part relative to the fixed module, the first section and the second and third magnetic units do not overlap, the second and third sections and the first and third magnetic units do not overlap, and the fourth section and the first and second magnetic units do not overlap.

### Claim 8 (depends on 1)

The optical system as claimed in claim 1, wherein the fixed module further has a housing connected to the base, and when viewed along a direction perpendicular to the optical axis, the base protrudes from a side of the housing.

### Claim 9 (depends on 1)

The optical system as claimed in claim 1, further comprising a reflecting element that reflects light to propagate along the optical axis to the optical element.

### Claim 10

An optical system, comprising:
a movable part for holding an optical element that defines an optical axis;
a fixed module, movably connected to the movable part and having a base;
a driving assembly, driving the movable part to move relative to the fixed module;
a position sensor, disposed on the base for detecting a position of the movable part relative to the fixed module;
an electronic element disposed on the base, wherein the position sensor overlaps the electronic element when viewed along the optical axis;
a resilient member, wherein the fixed module further has a housing connected to the base, and the base has a bottom surface parallel to the optical axis, a pillar forming a first surface not parallel to the optical axis, and a wall connecting to the pillar and forming a depressed structure for receiving a part of the driving assembly, wherein the resilient member is disposed on the first surface and movably connects a holder with the fixed module; and
a conductive member, wherein a part of the conductive member is embedded in the wall and electrically connected to the driving assembly, and the conductive member has an end surface exposed to a side of the wall and electrically connected to a conductive pad of the driving assembly, wherein the end surface is not parallel to the conductive pad.

### Claim 11 (depends on 10)

The optical system as claimed in claim 10, wherein the conductive member has an embedded portion extending inside the base, and when viewed along a direction perpendicular to the optical axis, the embedded portion and the resilient member partially overlap.

### Claim 12

An optical system, comprising:
a movable part for holding an optical element that defines an optical axis;
a fixed module, movably connected to the movable part and having a base;
a driving assembly, driving the movable part to move relative to the fixed module;
a position sensor, disposed on the base for detecting a position of the movable part relative to the fixed module;
an electronic element disposed on the base, wherein the position sensor overlaps the electronic element when viewed along the optical axis;
a resilient member, wherein the fixed module further has a housing connected to the base, and the base has a bottom surface parallel to the optical axis, a pillar forming a first surface not parallel to the optical axis, and a wall connecting to the pillar and forming a depressed structure for receiving a part of the driving assembly, wherein the resilient member is disposed on the first surface and movably connects a holder with the fixed module;
a conductive member, wherein a part of the conductive member is disposed on the wall and electrically connected to the driving assembly; and
a sensing assembly, disposed on the base and electrically connected to the conductive member.

### Claim 13

An optical system, comprising:
a movable part for holding an optical element that defines an optical axis;
a fixed module, movably connected to the movable part and having a base;
a driving assembly, driving the movable part to move relative to the fixed module;
a position sensor, disposed on the base for detecting a position of the movable part relative to the fixed module; and
an electronic element disposed on the base, wherein a position sensor overlaps the electronic element when viewed along the optical axis;
wherein the fixed module further has a plurality of conductive members disposed on the base, and the conductive members and the base constitute a circuit board that is parallel to the optical axis and electrically connected to the electronic element and the position sensor.

### Claim 14 (depends on 13)

The optical system as claimed in claim 13, wherein when viewed along a direction perpendicular to the circuit board, the position sensor does not overlap the optical axis.

### Claim 15 (depends on 13)

The optical system as claimed in claim 13, wherein when viewed along a direction perpendicular to the circuit board, the electronic element does not overlap the optical axis.