# US 12,117,722 B2 · Drive device and optical unit

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- Number: US 12,117,722 B2
- Document ID: US12117722B2
- Status: Granted
- Kind: B2
- Application number: 17/265,511
- Filed: 2019-07-05
- Published: 2021-07-22
- Granted: 2024-10-15
- Earliest claimed: 2018-08-09
- Assignees: Nidec Sankyo Corporation
- Applicants: Nidec Sankyo Corporation
- Inventors: Shinji Minamisawa; Takeshi Sue; Masato Gomyo
- Web page: https://patentgrep.com/patent/US12117722B2

## CPC

- G02B 7/021: {for more than one lens}
- G03B 5/02: Lateral adjustment of lens
- G02B 7/04: with mechanism for 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 5/04: Vertical adjustment of lens; Rising fronts
- 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 23/60: Control of cameras or camera modules
- 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
- 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

A drive device is provided and includes: a movable body including an attachment part, to which an optical module is attached; a fixed body; and a support part rotatably supporting the movable body about an optical axis of the optical module attached to the attachment part with respect to the fixed body. The movable body includes a movable body-side fixing part, to which a flexible printed circuit pulled out of the optical module is fixed. The fixed body includes a fixed body-side fixing part, to which the flexible printed circuit is fixed. And, a portion between the movable body-side fixing part and the fixed body-side fixing part in a region along an outer periphery of the fixed body is set as a region drawn around in an attitude causing a thickness direction of the flexible printed circuit to be directions both orthogonal to a direction of the optical axis.

## Claims

### Claim 1

A drive device comprising:
a movable body including an attachment part, to which an optical module is attached;
a fixed body; and
a support part configured to rotatably support the movable body about an optical axis of the optical module in a state of being attached to the attachment part with respect to the fixed body,
wherein the movable body includes a movable body-side fixing part, to which a flexible printed circuit pulled out of the optical module is fixed,
wherein the fixed body includes a fixed body-side fixing part, to which the flexible printed circuit is fixed, and
wherein a portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part in a region along an outer periphery of the fixed body is a region drawn around in an attitude causing a thickness direction of the flexible printed circuit to be a direction orthogonal to a direction of the optical axis,
wherein the portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part has a structure permitting the movable body to rotate about the optical axis,
wherein the flexible printed circuit has:
a first portion extending in a first direction from the movable body-side fixing part; and
a second portion extending in a second direction from the fixed body-side fixing part;
the second direction being a direction different from the first direction,
wherein the flexible printed circuit is L-shaped with the first portion extending in the first direction and the second portion extending in the second direction;
wherein
the first direction and the second direction are orthogonal to the direction of the optical axis, and
the first direction and the second direction are disposed on a X-Y plane that intersect the thickness direction of the flexible printed circuit.

### Claim 2 (depends on 1)

The drive device according to claim 1, wherein
the fixed body-side fixing part protrudes outward in a radial direction more than a side, at which the fixed body-side fixing part is formed.

### Claim 3 (depends on 1)

The drive device according to claim 1, wherein
a fixing face direction of the movable body-side fixing part is different from a fixing face direction of the fixed body-side fixing part.

### Claim 4

An optical unit comprising:
a movable body including an optical module;
a fixed body; and
a support part configured to rotatably support the movable body about an optical axis of the optical module with respect to the fixed body,
wherein the movable body includes a movable body-side fixing part, to which a flexible printed circuit pulled out of the optical module is fixed,
wherein the fixed body includes a fixed body-side fixing part, to which the flexible printed circuit is fixed,
wherein the flexible printed circuit is drawn around with a portion between the movable body-side fixing part and the fixed body-side fixing part in a region along an outer periphery of the fixed body, and
wherein the portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part has a structure permitting the movable body to rotate about the optical axis,
wherein the flexible printed circuit has:
a first portion extending in a first direction from the movable body-side fixing part; and
a second portion extending in a second direction from the fixed body-side fixing part;
the second direction being a direction different from the first direction,
wherein the flexible printed circuit is L-shaped with the first portion extending in the first direction and the second portion extending in the second direction;
wherein
the first direction and the second direction are orthogonal to the direction of the optical axis, and
the first direction and the second direction are disposed on a X-Y plane that intersect a thickness direction of the flexible printed circuit.

### Claim 5 (depends on 4)

The optical unit according to claim 4, wherein
the portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part is drawn around in an attitude causing the thickness direction of the flexible printed circuit to be a direction orthogonal to a direction of the optical axis.

### Claim 6 (depends on 4)

The optical unit according to claim 4, wherein
the flexible printed circuit lies within a region occupied by the fixed body in a direction of the optical axis.

### Claim 7 (depends on 6)

The optical unit according to claim 6, wherein
the flexible printed circuit lies within a region occupied by the fixed body and the movable body in the direction of the optical axis.

### Claim 8 (depends on 4)

The optical unit according to claim 4, wherein
the fixed body-side fixing part protrudes outward in a radial direction more than a side, at which the fixed body-side fixing part is formed.

### Claim 9 (depends on 8)

The optical unit according to claim 8, wherein
the movable body-side fixing part protrudes outward in the radial direction more than an adjacent outer periphery of the fixed body.

### Claim 10 (depends on 4)

The optical unit according to claim 4, wherein
the second portion extending in the second direction has a length longer than a length of the first portion extending in the first direction.

### Claim 11 (depends on 4)

The optical unit according to claim 4, wherein
the portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part is curved along a direction centering around the optical axis.

### Claim 12 (depends on 4)

The optical unit according to claim 4, wherein
the portion of the flexible printed circuit between the movable body-side fixing part and the fixed body-side fixing part is folded back in two or more layers.

### Claim 13 (depends on 12)

The optical unit according to claim 12, wherein
the flexible printed circuit has a slit in a folded back portion that is capable of being folded back.

### Claim 14 (depends on 4)

The optical unit according to claim 4, wherein
the flexible printed circuit includes a reinforcement plate in at least one of a portion fixed to the movable body-side fixing part and a portion fixed to the fixed body-side fixing part, and
wherein the reinforcement plate is located between the flexible printed circuit and the movable body-side fixing part, and/or
wherein the reinforcement plate is located between the flexible printed circuit and the fixed body-side fixing part.

### Claim 15 (depends on 4)

The optical unit according to claim 4, wherein
the flexible printed circuit includes a reinforcement plate in at least one of a portion fixed to the movable body-side fixing part and a portion fixed to the fixed body-side fixing part, and
wherein the reinforcement plate is located on a side of the flexible printed circuit opposite with a side where the movable body-side fixing part is located, and/or
wherein the reinforcement plate is located on a side of the flexible printed circuit opposite with a side where the fixed body-side fixing part is located.

### Claim 16 (depends on 4)

The optical unit according to claim 4, wherein
a rolling direction centers around the optical axis, and
the optical module has a mechanism for correcting shake in a pitching direction and a yawing direction.

### Claim 17 (depends on 4)

The optical unit according to claim 4, wherein
the first portion of the flexible printed circuit extending in the first direction and the second portion of the flexible printed circuit extending in the second direction are connected together as to intersect at an angle of 90° or more.

### Claim 18 (depends on 4)

The optical unit according to claim 4, wherein
a bend in a form of bellows is provided on the first portion of the flexible printed circuit extending in the first direction.
