Title:
回転操作装置およびこれを用いた電子機器
Document Type and Number:
Japanese Patent JP7266393
Kind Code:
B2
Abstract:
A rotation operation device using magnetic force, which is compact and enables a user to perform a proper operation. The rotation operation device includes a rotation operation member rotatable about a predetermined axis. A ring-shaped magnet is magnetized in a magnetization direction parallel to the predetermined axis such that magnetic poles alternate. The magnet rotates about the predetermined axis along with rotation of the rotation operation member. A first magnetic body have first tooth portions formed at predetermined intervals along a circumferential direction and extending in radial directions of the magnet. The magnet overlaps with the first tooth portions in a direction of the predetermined axis. An operating physical force is generated according to changes in positions of the magnetic poles and the first tooth portions, which are caused by rotation of the magnet.
Inventors:
Admiring Nagatsu
Application Number:
JP2018219471A
Publication Date:
April 28, 2023
Filing Date:
November 22, 2018
Export Citation:
Assignee:
Canon Inc
International Classes:
H01H3/52; G03B17/02; H01H19/03; H01H19/20; H04N23/50
Domestic Patent References:
| JP2012187202A | ||||
| JP2007257996A | ||||
| JP2009076344A | ||||
| JP2016219165A |
Attorney, Agent or Firm:
Another role
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