Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DRIVE UNIT, IMAGING DEVICE, AND ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2019/171458
Kind Code:
A1
Abstract:
The present invention is provided with: a fixed frame 30; a movable frame 40; magnet units 100a-100d; first magnets 60a-60d and second magnets 70a-70d which are magnetically polarized so that the magnetic poles thereof are mutually different in a radial direction K and which are non-adjacent in an optical axis direction L; third magnets 80a-80d which are adjacent in the optical axis direction L to the first magnets 60a-60d and/or the second magnets 70a-70d and which are magnetically polarized in the optical axis direction L so as to be homopolar with the magnetic poles of the first magnets 60a-60d and the second magnets 70a-70d on the outside thereof in the radial direction K; a coil unit 20; a first coil 21 and a second coil 22; and movement range restricting members 91, 92.

Inventors:
ITO TADASHI (JP)
Application Number:
PCT/JP2018/008510
Publication Date:
September 12, 2019
Filing Date:
March 06, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
OLYMPUS CORP (JP)
International Classes:
G02B7/04; A61B1/00; G02B23/24; G03B15/00
Foreign References:
JP2017189303A2017-10-19
JP2017111193A2017-06-22
JP2004191453A2004-07-08
Attorney, Agent or Firm:
ITOH Susumu (JP)
Download PDF: