Image pickup apparatus

Patent metadata

Field	Value
Publication number	US-2016291287-A1
Application number	US-201615082315-A
Country	US
Kind code	A1
Filing date	Mar 28, 2016
Priority date	Mar 30, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

The image pickup apparatus has a focus lens that adjusts focus on a subject, an operating section (an MF operation ring) that accepts user's operation, and a focus-lens driver that drives the focus lens in response to the user's operation. The focus-lens driver drives the focus lens so that a rotation amount at the operating section, which is required for moving a focus position by unit distance, is maintained at a constant level with no regard to a subject distance.

First claim

What is claimed is:

1 . An image pickup apparatus comprising:
a focus lens for adjusting focus on a subject; an operating section for accepting user's operation; and a driver for driving the focus lens in response to the user's operation, wherein, the driver drives the focus lens so that a rotation amount at the operating section, which is required for moving a focus position by unit distance, is maintained at a constant level with no regard to a subject distance.

2 . The image pickup apparatus of claim 1 further comprising:
a camera-shake detector for detecting a camera-shake amount of a lens barrel; and
a controller for controlling the driver,
wherein, the controller controls the driver so that the driver works on a first state when the camera-shake amount detected by the camera-shake detector is not more than a predetermined value, while the driver works on a second state that differs from the first state when the camera-shake amount detected by the camera-shake detector exceeds the predetermined value.

3 . The image pickup apparatus of claim 2 , wherein a drive amount of the focus lens in the first state is smaller than a drive amount of the focus lens in the second state.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Kishida Naotaka
• Kawazoe Kenji

Classifications

• G02B27/646

  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) · CPC title

• G03B13/34 Primary

  Power focusing · CPC title

• G02B7/105 Primary

  with movable lens means specially adapted for focusing at close distances · CPC title

• G03B3/10

  Power-operated focusing · CPC title