Title:
光学装置および内視鏡
Document Type and Number:
Japanese Patent JP7026806
Kind Code:
B2
Abstract:
An optical device includes a moving lens frame formed of a magnetic body, a fixed lens frame holding the moving lens frame on an inner peripheral surface so that the moving lens frame is movable along an optical axis, a first magnet and a second magnet disposed separately from each other in a direction of the optical axis on an outer periphery of the fixed lens frame and each having an annular shape, and a coil wound between the first magnet and the second magnet on the outer periphery of the fixed lens frame, and the moving lens frame has a non-rotationally symmetric shape about the optical axis.
Inventors:
Takahiro Shimono
Application Number:
JP2020540025A
Publication Date:
February 28, 2022
Filing Date:
February 14, 2019
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G02B7/04; A61B1/00; G02B7/02; G02B23/26; G03B15/00; G03B30/00
Domestic Patent References:
| JP2017063845A | ||||
| JP2016523640A |
Foreign References:
| WO2017169555A1 | ||||
| WO2015093398A1 |
Attorney, Agent or Firm:
Patent Business Corporation Itoshin International Patent Office