# US 11,442,287 B2 · Optical unit

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- Number: US 11,442,287 B2
- Document ID: US11442287B2
- Status: Granted
- Kind: B2
- Application number: 16/696,330
- Filed: 2019-11-26
- Published: 2020-06-04
- Granted: 2022-09-13
- Earliest claimed: 2018-11-30
- Assignees: Nidec Sankyo Corporation
- Applicants: Nidec Sankyo Corporation
- Inventors: Shinji Minamisawa
- Web page: https://patentgrep.com/patent/US11442287B2

## CPC

- 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 5/02: Lateral adjustment of lens
- G03B 5/06: Swinging lens about normal to the optical axis
- H02K 41/0356: {moving along a straight path}
- H04N 23/55: Optical parts specially adapted for electronic image sensors; Mounting thereof
- H04N 23/685: {performed by mechanical compensation}
- H04N 23/687: {by shifting the lens or sensor position}
- G03B 2205/0023: by tilting or inclining one or more optical elements with respect to the optical axis
- G03B 2205/0053: Driving means for the movement of one or more optical element
- G03B 2205/0069: using electromagnetic actuators, e.g. voice coils
- H02K 2201/18: Machines moving with multiple degrees of freedom
- H04M 1/0264: {for a camera module assembly}
- 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})
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)

## Abstract

An optical unit may include a movable body having an optical module, a fixed body, a support mechanism structured to swingably support the movable body, and a magnetic drive part which is provided on at least two faces of the movable body and the fixed body and is structured to swing the movable body. All faces of one of the movable body and the fixed body may be formed with a protruded part protruded to a direction where the movable body and the fixed body are faced each other, all faces of the other of the movable body and the fixed body may be formed with a contact part capable of contacting with the protruded part, and the face of the one of the movable body and the fixed body where the magnetic drive part is provided is formed with the protruded part on both sides of the magnetic drive part.

## Claims

### Claim 1

An optical unit comprising:
a movable body comprising an optical module;
a fixed body;
a support mechanism structured to swingably support the movable body with respect to the fixed body; and
a magnetic drive part which is provided on at least two faces of the movable body and the fixed body facing in a direction intersecting an optical axis direction and is structured to swing the movable body with respect to the fixed body;
wherein all faces of one of the movable body and the fixed body in the direction intersecting the optical axis direction are formed with a protruded part which is protruded to a direction where the movable body and the fixed body are faced each other;
wherein all faces of an other of the movable body and the fixed body in the direction intersecting the optical axis direction are formed with a contact part which is capable of contacting with the protruded part; and
wherein the face of the one of the movable body and the fixed body where the magnetic drive part is provided is formed with the protruded part on both sides of the magnetic drive part.

### Claim 2 (depends on 1)

The optical unit according to claim 1, wherein a face of the one of the movable body and the fixed body where the magnetic drive part is not provided is formed with the protruded part which is extended in a direction intersecting the optical axis direction.

### Claim 3 (depends on 1)

The optical unit according to claim 1, wherein the protruded part is formed in the movable body.

### Claim 4 (depends on 1)

The optical unit according to claim 1, wherein
the support mechanism swingably supports the movable body with respect to the fixed body with a swing axis in a direction intersecting the optical axis direction as a reference, and
the protruded part comprises an opposing face in a flat face shape which is disposed in a direction facing the contact part at a position including the swing axis in the optical axis direction.

### Claim 5 (depends on 4)

The optical unit according to claim 4, wherein a length in the optical axis direction of the opposing face is set to be a length which does not exceed a position of the swing axis in the optical axis direction when the protruded part and the contact part are contacted with each other.

### Claim 6 (depends on 1)

The optical unit according to claim 1, wherein
the support mechanism swingably supports the movable body with respect to the fixed body with a swing axis in a direction intersecting the optical axis direction as a reference, and
the protruded part comprises a circular arc face with the swing axis as a center.

### Claim 7 (depends on 1)

The optical unit according to claim 1, wherein the protruded part comprises a tapered part whose length in the optical axis direction is gradually reduced toward the direction in which the movable body and the fixed body are faced each other.