Title:
光ファイバスキャナ、照明装置および観察装置
Document Type and Number:
Japanese Patent JP6865221
Kind Code:
B2
Abstract:
Provided is an optical fiber scanner including: an optical fiber that guides light from a side of a proximal-end portion to a side of a distal-end portion along a longitudinal axis, the optical fiber emitting the light from the distal-end portion; a piezoelectric element that is secured to an outer circumferential surface of the optical fiber, the piezoelectric element, as a result of an alternating voltage being applied thereto, generating stretching vibrations in a direction along the longitudinal axis; and a pressing portion that, of an outer surface of the piezoelectric element positioned on the radially outer side of the optical fiber, presses down, radially inward, a portion corresponding to an antinode of the stretching vibrations in a direction along the longitudinal axis of the piezoelectric element.
Inventors:
Takashi Yasumi
Yasuaki Kasai
Hirokazu Yokota
Dr. Tsuruta
Yasuaki Kasai
Hirokazu Yokota
Dr. Tsuruta
Application Number:
JP2018523899A
Publication Date:
April 28, 2021
Filing Date:
June 12, 2017
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
A61B1/00; G02B23/24; G02B23/26; G02B26/08; G02B26/10
Domestic Patent References:
| JP2015223425A | ||||
| JP2013244045A |
Foreign References:
| WO2016075997A1 |
Attorney, Agent or Firm:
Kunio Ueda
Junichiro Yanagi
Mayumi Oguri
Kunihiko Takeuchi
Junichiro Yanagi
Mayumi Oguri
Kunihiko Takeuchi