Title:
ROTATION OPERATION UNIT, ELECTRONIC DEVICE INCLUDING THE SAME, AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2019185977
Kind Code:
A
Abstract:
To shield magnetism while avoiding upsizing.SOLUTION: A magnet 251 is magnetized at a predetermined rotation angle on the N pole and the S pole. A concave portion 230g and a convex portion 230h are formed at predetermined rotation angles on the outer periphery of a click plate 230 around a rotation center line XO, and the click plate 230 generates click feeling at every predetermined rotation angle in cooperation with a ball member 211 as the rotation operation member 200 rotates. When a Hall IC 241 detects the magnetic field generated from the magnetized surface 251a of a magnet 251, the rotation operation of the rotation operation member 200 is detected. The click plate 230 is disposed so as to overlap the magnet 251 and is formed of a magnetic member and has a magnetic shield function.SELECTED DRAWING: Figure 4
Inventors:
SAKAMAKI AKIHIKO
Application Number:
JP2018073844A
Publication Date:
October 24, 2019
Filing Date:
April 06, 2018
Export Citation:
Assignee:
CANON KK
International Classes:
H01H19/03; G03B17/00; G03B17/02
Attorney, Agent or Firm:
Another role Shigehisa