Title:
POSITION DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/004427
Kind Code:
A1
Abstract:
In the present invention, the relative position of a moving magnet (140) with respect to a magnetic sensor (150) can be changed in a direction that is parallel to the optical axis direction of a lens. A change in the relative position of the moving magnet (140) with respect to a stationary magnet (132) and the magnetic sensor (150) changes both the direction and strength of a second magnetic field that is applied to the magnetic sensor (150) by the moving magnet (140).
Inventors:
NAKAMURA DAISUKE (JP)
SUGIMOTO TAKUYA (JP)
SUGIMOTO TAKUYA (JP)
Application Number:
PCT/JP2021/023172
Publication Date:
January 06, 2022
Filing Date:
June 18, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
G01D5/245
Foreign References:
| JP2019008329A | 2019-01-17 | |||
| JP2019082445A | 2019-05-30 | |||
| JP2015141329A | 2015-08-03 | |||
| US20180224628A1 | 2018-08-09 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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