Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LENS BARREL AND OPTICAL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/140989
Kind Code:
A1
Abstract:
In order to provide a lens barrel having good optical performance, this lens barrel is provided with: a first tube having a first cam groove; a second tube having a first protruding part that engages with the first cam groove, and a second cam groove; a third tube having a first rectilinear groove along an optical axis direction; and a lens holding frame having a second protruding part that engages with the second cam groove and the first rectilinear groove and holds a lens.　

More Like This:
JP7116639IMAGE STABILIZATION DEVICE, LENS UNIT INCLUDING THE SAME, IMAGING DEVICE, AND IMAGE STABILIZATION METHOD
JPS63167335ZOOMING SYSTEM
JP4725063Image blur correction device and camera
Inventors:
HAMASAKI TAKUJI (JP)
TOKUGAWA TOMOYUKI (JP)
IRIE TOSHIYUKI (JP)
Application Number:
PCT/JP2020/049133
Publication Date:
July 15, 2021
Filing Date:
December 28, 2020
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIKON CORP (JP)
International Classes:
G03B5/00; G02B7/04
Foreign References:
JP2010039285A2010-02-18
JP2019133113A2019-08-08
JP2019070758A2019-05-09
JP2015152616A2015-08-24
JP2016008995A2016-01-18
Attorney, Agent or Firm:
KATAYAMA, Shuhei (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: ESTIMATION DEVICE AND ESTIMATION METHOD

Next Patent: MEDIUM HOLDING DEVICE