# US 2017/0257574 A1 · Image pickup device

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- Number: US 2017/0257574 A1
- Document ID: US20170257574A1
- Status: Published application
- Kind: A1
- Application number: 15/443,492
- Filed: 2017-02-27
- Published: 2017-09-07
- Earliest claimed: 2016-03-02
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Intellectual Property Management Co., Ltd.
- Inventors: KENICHI HONJO; YASUO AMANO; YASUHIRO SHINGU
- Web page: https://patentgrep.com/patent/US20170257574A1

## CPC

- H04N 23/687: {by shifting the lens or sensor position}
- H04N 23/6812: {based on additional sensors, e.g. acceleration sensors}
- H04N 25/61: the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

An image pickup device includes an optical system including a plurality of lenses, an imaging element that captures a subject image formed by the optical system, and a peripheral light quantity correction unit that corrects peripheral light quantity of an image captured by the imaging element. The image pickup device also includes a shake detector that detects shake of the image pickup device, and a drive controller that moves at least one of (i) the plurality of lenses and (ii) the imaging element on a plane perpendicular to an optical axis in response to an output signal of the shake detector to correct the shake. The peripheral light quantity correction unit extracts a predetermined frequency component of the shake and changes a correction amount of the peripheral light quantity in response to the predetermined frequency component of the shake.

## Claims

### Claim 1

An image pickup device comprising:
an optical system including a plurality of lenses;
an imaging element that captures a subject image formed by the optical system;
a peripheral light quantity correction unit that corrects peripheral light quantity of an image captured by the imaging element;
a shake detector that detects shake of the image pickup device; and
a drive controller that moves at least one of (i) the plurality of lenses and (ii) the imaging element on a plane perpendicular to an optical axis in response to an output signal of the shake detector to correct the shake,
wherein
the peripheral light quantity correction unit extracts a predetermined frequency component of the shake and changes a correction amount of the peripheral light quantity in response to the predetermined frequency component of the shake.

### Claim 2 (depends on 1)

The image pickup device according to claim 1, wherein
the peripheral light quantity correction unit extracts the predetermined frequency component of the shake from the output signal of the shake detector, and changes the correction amount of the peripheral light quantity in response to the predetermined frequency component of the shake.

### Claim 3 (depends on 1)

The image pickup device according to claim 1, wherein
the peripheral light quantity correction unit extracts the predetermined frequency component of the shake from a drive control signal to move at least one of (i) the plurality of lenses and (ii) the imaging element in the drive controller, and then the peripheral light quantity correction unit changes the correction amount of the peripheral light quantity in response to the predetermined frequency component of the shake.

### Claim 4 (depends on 1)

The image pickup device according to claim 1, wherein
the peripheral light quantity correction unit has a plurality of pieces of correction data depending on an image height on the imaging element.

### Claim 5 (depends on 1)

The image pickup device according to claim 1, further comprising:
an interchangeable lens including the optical system; and
a camera body including the imaging element and the peripheral light quantity correction unit,
wherein
the interchangeable lens and the camera body are detachable.

### Claim 6 (depends on 5)

The image pickup device according to claim 5, wherein
the optical system includes a correction lens for correcting the shake.