Title:
LENS BARREL AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2021196471
Kind Code:
A
Abstract:
To provide a lens barrel having good optical performance.SOLUTION: The lens barrel comprises: a first electrically driven drive unit; a first rotary shaft which is rotated by the first drive unit; a first moving portion which is moved by the rotational drive of the first rotary shaft; a first lens holding frame holding a first lens and moving by being coupled with the first moving portion; a second electrically driven drive unit; a second rotary shaft which is rotated by the second drive unit; a second moving portion which is moved by the rotational drive of the second rotary shaft; a second lens holding frame holding a second lens and moving by being coupled with the second moving portion; and a guide shaft guiding the first and second lens holding frames in the direction of the optical axis. The first rotary shaft, the guide shaft and the second rotary shaft are arranged in this order, along the circumferential direction centering on the optical axis.SELECTED DRAWING: Figure 5
Inventors:
NAKANO TAKUMI
HAMAZAKI TAKUJI
HAMAZAKI TAKUJI
Application Number:
JP2020102217A
Publication Date:
December 27, 2021
Filing Date:
June 12, 2020
Export Citation:
Assignee:
NIKON CORP
International Classes:
G02B7/04; G02B7/08; H04N5/225
Domestic Patent References:
| JP2003241056A | 2003-08-27 | |||
| JP2012075275A | 2012-04-12 |
Attorney, Agent or Firm:
Shuhei Katayama
Toshige Otake
Toshige Otake
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