Processing

Please wait...

Settings

Settings

1. WO2020003922 - LENS BARREL

Publication Number WO/2020/003922
Publication Date 02.01.2020
International Application No. PCT/JP2019/022174
International Filing Date 04.06.2019
IPC
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
7
Mountings, adjusting means, or light-tight connections, for optical elements
02
for lenses
04
with mechanism for focusing or varying magnification
08
adapted to co-operate with a remote control mechanism
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
9
Exposure-making shutters; Diaphragms
02
Diaphragms
06
Two or more co-operating pivoted blades e.g. iris type
G02B 7/04 (2006.01)
G02B 7/02 (2006.01)
G02B 7/08 (2006.01)
G03B 9/06 (2006.01)
CPC
G02B 7/02
G02B 7/04
G02B 7/08
G03B 9/06
Applicants
  • 株式会社ニコン NIKON CORPORATION [JP/JP]; 東京都港区港南二丁目15番3号 15-3, Konan 2-chome, Minato-ku, Tokyo 1086290, JP
Inventors
  • 清水 邦彦 SHIMIZU Kunihiko; JP
  • 和湯 瑞葵 WAYU Mizuki; JP
Agents
  • 加藤 竜太 KATO Ryuta; JP
  • 本木 久美子 MOTOKI Kumiko; JP
Priority Data
2018-12365828.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LENS BARREL
(FR) CYLINDRE DE LENTILLE
(JA) レンズ鏡筒
Abstract
(EN)
The present invention provides a lens barrel capable of changing the aperture diameter according to a zoom position while having a short length. A lens barrel 1 according to the present invention comprises: a diaphragm unit 20 having a cam follower 21a; and a moving cylinder 7 having a cam groove 7b for engaging the cam follower 21a, the moving cylinder being provided at the outer periphery of the diaphragm unit 20 and able to move along the optical axis direction.
(FR)
La présente invention concerne un cylindre de lentille susceptible de changer le diamètre d’ouverture selon une position de zoom tout en ayant une longueur courte. Un cylindre de lentille (1) selon la présente invention comprend : une unité diaphragme (20) ayant un galet de came (21a) ; et un cylindre de déplacement (7) ayant une rainure de came (7b) pour engager le galet de came (21a), le cylindre de déplacement étant disposé à la périphérie externe de l’unité diaphragme (20) et susceptible de se déplacer le long du sens de l’axe optique.
(JA)
ズーム位置に応じて絞り開放径を変更可能且つ鏡筒長が短いレンズ鏡筒を提供する。 本発明のレンズ鏡筒1は、カムフォロア21aを有する絞りユニット20と、前記カムフォロア21aと係合するカム溝7bを有し、前記絞りユニット20の外周側に配され、光軸方向に移動可能な移動筒7と、を備える。
Latest bibliographic data on file with the International Bureau