# US 12,601,891 B2 · Optical element driving mechanism

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,601,891 B2
- Document ID: US12601891B2
- Status: Granted
- Kind: B2
- Application number: 17/740,667
- Filed: 2022-05-10
- Published: 2022-11-10
- Granted: 2026-04-14
- Earliest claimed: 2021-05-10
- Assignees: Actutek Corporation
- Applicants: Actutek Corporation
- Inventors: Chen-Hsien Fan; Sin-Jhong Song; Chih-Wen Chiang; Chia-Che Wu
- Web page: https://patentgrep.com/patent/US12601891B2

## CPC

- G02B 7/08: adapted to co-operate with a remote control mechanism
- G02B 7/005: {Motorised alignment}
- G02B 7/021: {for more than one lens}
- G02B 7/022: {lens and mount having complementary engagement means, e.g. screw/thread}
- G02B 7/023: {permitting adjustment}
- G02B 7/09: adapted for automatic focusing or varying magnification
- G02B 13/009: {having zoom function}
- G02B 15/142: {having two groups only}
- 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 5/02: Lateral adjustment of lens
- 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
- 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
- G03B 2205/0053: Driving means for the movement of one or more optical element
- G03B 2205/0061: using piezoelectric actuators
- 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)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An optical system is provided. The optical system includes a first assembly and a second assembly. The first assembly includes a first welding portion. The second assembly is affixed on the first assembly and includes a second welding portion. The first welding portion is affixed on the second welding portion by welding.

## Claims

### Claim 1

An optical system, comprising:
a first assembly comprising a first welding portion, wherein the first welding portion comprises a first welding surface;
a second assembly affixed on the first assembly and comprising:
a bottom comprising a first surface, a second surface, and a third surface, wherein the first surface and the second surface face different directions, and the second surface and the third surface face an identical direction;
a circuit assembly disposed in the bottom, comprising:
a first circuit element disposed in the bottom and partially exposed from the first surface;
a second circuit element disposed in the bottom, partially exposed from the second surface, and comprising a second welding portion, wherein the second welding portion comprises a second welding surface perpendicular to the first welding surface; and
a third circuit element disposed in the bottom and partially exposed from the third surface;
a movable portion disposed in the first assembly and the second assembly and used for holding an optical element having an optical axis,
wherein when viewed along the optical axis, the first assembly does not overlap the second welding portion, and a normal direction of the first welding surface is perpendicular to the optical axis; and
wherein the first welding portion is affixed on the second welding portion by welding.

### Claim 2 (depends on 1)

The optical system as claimed in claim 1, wherein:
the bottom comprises non-metal material.

### Claim 3 (depends on 2)

The optical system as claimed in claim 2, wherein:
the first circuit element and the second circuit element are electrically isolated from each other; and
the first circuit element and the third circuit element are electrically isolated from each other.

### Claim 4 (depends on 3)

The optical system as claimed in claim 3, wherein:
the second welding portion is not exposed from the first assembly when viewed in a first direction parallel to a normal vector of the first welding surface;
the second welding portion overlaps the first assembly when viewed in a second direction opposite from the first direction; and
the first circuit element comprises a first main body, a bending portion, and a first connecting portion.

### Claim 5 (depends on 4)

The optical system as claimed in claim 4, further comprising a first electronic element and a second electronic element connecting the first main body, wherein:
the first main body connects to the first connecting portion through the bending portion; and
the first connecting portion is exposed from the bottom.

### Claim 6 (depends on 5)

The optical system as claimed in claim 5, wherein:
the second circuit element further comprises a third welding portion affixed on the first welding portion by welding;
the third circuit element further comprises a fourth welding portion affixed on the first welding portion by welding;
the second welding portion and the third welding portion are arranged in a third direction;
the second welding portion and the fourth welding portion are arranged in a fourth direction;
the third direction and the first direction are different;
the fourth direction and the first direction are different;
the third direction and the fourth direction are different;
the second welding surface is not parallel or perpendicular to the third direction; and
the second welding surface is not parallel or perpendicular to the fourth direction.

### Claim 7 (depends on 6)

The optical system as claimed in claim 6, wherein:
the first direction and the third direction are perpendicular;
the first direction and the fourth direction are perpendicular;
the third direction and the fourth direction are perpendicular;
the second welding portion comprises a first portion, a second portion, a third portion, and a heat isolation structure;
the first portion connects to the third portion through the second portion;
the second welding surface is at the first portion;
the first portion is exposed from the bottom when viewed in the second direction;
a portion of the second portion is exposed from the bottom when viewed in the second direction; and
another portion of the second portion is embedded in the bottom when viewed in the second direction.

### Claim 8 (depends on 7)

The optical system as claimed in claim 7, wherein:
the third portion is embedded in the bottom when viewed in the second direction;
the heat isolation structure and the second portion are arranged in the fourth direction;
the first welding surface is exposed form the heat isolation structure when viewed in the second direction;
the second portion has a first width in the fourth direction;
the heat isolation structure has a second width in the fourth direction; and
the first width and the second width are different.

### Claim 9 (depends on 8)

The optical system as claimed in claim 8, wherein:
the first width is less than the second width;
a first distance is between the first main body and a bottom surface of the bottom in the first direction;
a second distance is between the first connecting portion and the bottom surface in the first direction;
a third distance is between the third welding portion and the bottom surface in the first direction;
the first distance and the second distance are different;
the first distance and the third distance are different; and
the second distance and the third distance are different.

### Claim 10 (depends on 9)

The optical system as claimed in claim 9, wherein:
the first assembly further comprises a case, wherein the first welding portion is a portion of the case;
the bending portion is separated from the case; and
the bending portion is embedded in the bottom.

### Claim 11 (depends on 10)

The optical system as claimed in claim 10, wherein:
the first connecting portion and the fourth welding portion are arranged in the third direction;
a fourth distance is between the first connecting portion and the fourth welding portion in the third direction;
a fifth distance is between the second welding portion and the third welding portion in the third direction; and
the fourth distance and the fifth distance are different.

### Claim 12 (depends on 11)

The optical system as claimed in claim 11, wherein:
a sixth distance is between the first connecting portion and the third welding portion in the fourth direction;
a seventh distance is between the second welding portion and the fourth welding portion in the fourth direction; and
the sixth distance and the seventh distance are different.

### Claim 13 (depends on 12)

The optical system as claimed in claim 12, wherein:
the first distance is less than the second distance;
the first distance is less than the third distance;
the second distance is less than the third distance;
the fourth distance is greater than the fifth distance; and
the sixth distance is greater than the seventh distance.

### Claim 14 (depends on 13)

The optical system as claimed in claim 13, wherein:
the bottom comprises a main body and a wall;
the wall extends from the main body in the second direction;
the circuit assembly is disposed in the main body;
a column is formed on the wall and extending in the third direction;
the column is exposed from the first assembly when viewed in the first direction; and
the column is exposed from the first assembly when viewed in the third direction.

### Claim 15 (depends on 14)

The optical system as claimed in claim 14, wherein:
the case further comprises a recess;
the column is disposed in the recess;
the first connecting portion is exposed from the first assembly when viewed in the first direction; and
the column does not overlap the first connecting portion viewed in the first direction.

### Claim 16 (depends on 15)

The optical system as claimed in claim 15, wherein:
the first circuit element is electrically isolated from the first assembly;
the first circuit element further comprises a second connecting portion disposed on the wall;
the second connecting portion is exposed from the wall and overlaps the wall when viewed in the fourth direction; and
the second connecting portion extends in the second direction.

### Claim 17 (depends on 16)

The optical system as claimed in claim 16, wherein:
at least a portion of the first circuit element overlaps the first electronic element when viewed in the first direction;
at least a portion of the first circuit element overlaps the second electronic element when viewed in the first direction;
at least a portion of the first connecting portion overlaps the first electronic element when viewed in the third direction;
at least a portion of the first connecting portion overlaps the second electronic element when viewed in the third direction;
the first electronic element and the second electronic element do not overlap each other when viewed in the third direction;
the third welding portion does not overlap the first electronic element and the second electronic element when viewed in the third direction;
at least a portion of the first connecting portion overlaps the second connecting portion when viewed in the third direction; and
the second connecting portion and the third welding portion do not overlap each other when viewed in the third direction.

### Claim 18 (depends on 17)

The optical system as claimed in claim 17, wherein:
at least a portion of the first electronic element overlaps the second electronic element when viewed in the fourth direction;
the first connecting portion does not overlap the first electronic element when viewed in the fourth direction;
the first connecting portion does not overlap the second electronic element when viewed in the fourth direction;
the first connecting portion and the second connecting portion do not overlap each other when viewed in the fourth direction;
at least a portion of the second connecting portion overlaps the third welding portion when viewed in the fourth direction;
materials of the first welding portion and the second welding portion are different;
the optical system further comprises:
a first welding element covering the first welding surface;
a second welding element covering the second welding surface;
a driving assembly disposed on the movable portion and the fixed portion, used for driving the movable portion to move relative to the fixed portion; and
a resilient assembly elastically connecting to the movable portion and the fixed portion;
wherein materials of the first welding element and the first welding portion are different;
materials of the second welding element and the second welding portion are different;
the first assembly and the second assembly form a fixed portion; and
the movable portion is movable relative to the fixed portion.

### Claim 19 (depends on 1)

The optical system as claimed in claim 1, wherein:
the bottom further comprises a fourth surface, a fifth surface, and a sixth surface;
the first circuit element is partially exposed from the fourth surface;
the second circuit element is partially exposed from the fifth surface;
the third circuit element is partially exposed from the sixth surface;
the second surface and the fifth surface face opposite directions;
the fourth surface is perpendicular to the first surface, the second surface, and the fifth surface; and
the fifth surface and the sixth surface face an identical direction.

### Claim 20 (depends on 1)

The optical system as claimed in claim 1, wherein:
the first circuit element, the second circuit element, and the third circuit element are physically separated from each other;
in a third direction, the first circuit element partially overlaps the second circuit element and the third circuit element; and
in the third direction, the second circuit element does not overlap the third circuit element.