Title:
LENS BARREL AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/038840
Kind Code:
A1
Abstract:
To increase the optical performance of this lens barrel, the lens barrel is made to comprise a diaphragm unit (30) that adjusts the light amount of a light flux passing through the lens barrel, and a first frame (F4) having at least one lens and provided with a first engagement portion (51) which engages with a first guide bar (25) extending in the optical axis direction. The diaphragm unit (30), the lens (L3), and the first frame (F4) integrally move in the optical axis direction.
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Inventors:
FUKUSHIMA TAKEHISA (JP)
KINOUCHI YUKI (JP)
GODA YOKICHI (JP)
KINOUCHI YUKI (JP)
GODA YOKICHI (JP)
Application Number:
PCT/JP2023/029413
Publication Date:
February 22, 2024
Filing Date:
August 14, 2023
Export Citation:
Assignee:
NIKON CORP (JP)
International Classes:
G02B7/04; G02B7/02; G02B7/08; G03B5/00; G03B9/02; H04N23/55
Domestic Patent References:
| WO2012107965A1 | 2012-08-16 | |||
| WO2021049184A1 | 2021-03-18 |
Foreign References:
| JP2009175257A | 2009-08-06 |
Attorney, Agent or Firm:
KATAYAMA, Shuhei (JP)
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