# US 2019/0174053 A1 · Lens barrel, replacement lens, imaging device, and control program

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- Number: US 2019/0174053 A1
- Document ID: US20190174053A1
- Status: Published application
- Kind: A1
- Application number: 16/266,674
- Filed: 2019-02-04
- Published: 2019-06-06
- Earliest claimed: 2014-03-12
- Assignees: Nikon Corporation
- Applicants: Nikon Corporation
- Inventors: Teppei OKUYAMA; Hidefumi OTA; Toshiaki MAEDA; Satoshi HARA; Akihiko KAWAI
- Web page: https://patentgrep.com/patent/US20190174053A1

## CPC

- H04N 23/663: for controlling interchangeable camera parts based on electronic image sensor signals
- G02B 7/102: {controlled by a microcomputer (cameras with interchangeable lenses G03B17/14)}
- G03B 3/10: Power-operated focusing
- G03B 17/14: interchangeably
- H04N 23/667: Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
- H04N 23/69: Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
- H04N 25/704: Pixels specially adapted for focusing, e.g. phase difference pixel sets
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- 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)

## Abstract

A lens barrel attached to an imaging device, including a focus lens unit that is movable in an optical axis direction; an actuator that moves the focus lens unit along the optical axis direction; a drive control section that controls drive of the actuator; and a setting section that is capable of setting a movement range of the focus lens unit to be one of a first range and a second range that differ from each other with respect to at least one of one end and another end, each range defining the range in which the focus lens unit is allowed to move. Even when the movement range of the focus lens unit is set by the setting section to be one of the first range and the second range, the drive control section removes the setting of the movement range when instructions are received from the imaging device.

## Claims

### Claim 1

An imaging device, comprising:
a camera body; and
a lens barrel, wherein
the lens barrel comprises
a focus lens that is movable in an optical axis direction, and
a first processor that sets a movement range of the focus lens and that moves the focus lens in the optical axis direction,
the camera body comprises a second processor that sets a movement range of the focus lens, and
the first processor moves the focus lens in the movement range set by the second processor when the movement range set by the first processor is different from the movement range set by the second processor.

### Claim 2 (depends on 1)

The imaging device according to claim 1, wherein
the movement range set by the second processor is a movement range that is limited for an infinity focal region or is limited for a close focal region.

### Claim 3 (depends on 1)

The imaging device according to claim 1, wherein
the second processor sets the movement range based on setting information relating to an image capturing.

### Claim 4 (depends on 3)

The imaging device according to claim 3, wherein
the setting information relating to the image capturing is information relating to an image capturing mode.

### Claim 5 (depends on 4)

The imaging device according to claim 4, wherein
when the movement range set by the second processor is set based on a mode for a close focal region, the first processor moves the focus lens in a range corresponding to the close focal region.

### Claim 6 (depends on 4)

The imaging device according to claim 4, wherein
when the movement range set by the second processor is set based on a mode for an infinity focal region, the first processor moves the focus lens in a range corresponding to the infinity focal region.

### Claim 7 (depends on 4)

The imaging device according to claim 4, wherein
when the image capturing mode is an auto mode or a manual mode, the first processor moves the focus lens in the movement range set by the second processor based on the image capturing mode.

### Claim 8 (depends on 1)

The imaging device according to claim 1, further comprising
a display that displays information relating to the movement range of the focus lens.