Title:
振れ補正機能付き光学ユニット
Document Type and Number:
Japanese Patent JP6883467
Kind Code:
B2
Abstract:
An optical unit with a shake correction function may include a movable body having an optical element, a turnable support mechanism structured to turnably support the movable body around an optical axis of the optical element, a fixed body supporting the movable body through the turnable support mechanism, a magnetic rolling drive mechanism structured to turn the movable body, and an angular position return mechanism structured to return the movable body to a reference angular position around the optical axis. The magnetic rolling drive mechanism may include a coil and a magnet facing the coil. The magnet is polarized and magnetized in a circumferential direction. The angular position return mechanism includes a magnetic member attached to the movable body and, when the movable body is located at the reference angular position, an imaginary plane which includes a magnetizing polarized line of the magnet passes a center of the magnetic member.
Inventors:
Shinji Minamizawa
Takeshi Sue
Takeshi Sue
Application Number:
JP2017092234A
Publication Date:
June 09, 2021
Filing Date:
May 08, 2017
Export Citation:
Assignee:
Nidec Sankyo Co., Ltd.
International Classes:
G03B5/00; G02B7/04
Domestic Patent References:
| JP2016138929A | ||||
| JP2015082072A | ||||
| JP2013156432A |
Attorney, Agent or Firm:
Toru Kawai
Shin Kodaira
Kawaguchi Nobuko
Shin Kodaira
Kawaguchi Nobuko