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1. WO2020003921 - LENS BARREL

Publication Number WO/2020/003921
Publication Date 02.01.2020
International Application No. PCT/JP2019/022173
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
04
with mechanism for focusing or varying magnification
10
by relative axial movement of several lenses, e.g. of varifocal objective lens
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
17
Details of cameras or camera bodies; Accessories therefor
02
Bodies
12
with means for supporting objectives, supplementary lenses, filters, masks, or turrets
14
interchangeably
G02B 7/04 (2006.01)
G02B 7/10 (2006.01)
G03B 17/14 (2006.01)
CPC
G02B 7/04
G02B 7/10
G03B 17/14
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
  • 株式会社栃木ニコン TOCHIGI NIKON CORPORATION [JP/JP]; 栃木県大田原市実取770番地 Midori 770, Otawara-Shi, Tochigi 3248625, JP
Inventors
  • 清水 邦彦 SHIMIZU Kunihiko; JP
  • 和泉 諭史 WAIZUMI Satoshi; JP
  • 小泉 健裕 KOIZUMI Takehiro; JP
Agents
  • 加藤 竜太 KATO Ryuta; JP
  • 本木 久美子 MOTOKI Kumiko; JP
Priority Data
2018-12365728.06.2018JP
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 increasing the moving range of a lens. A lens barrel 1 according to the present invention comprises: a lens retainer frame (10) for holding a lens; a drive unit (12) for driving the lens retainer frame along the optical axis direction; a first cylinder (9) that holds the drive unit and has a cam follower (9a); a second cylinder (5) that has a cam groove for engaging the cam follower; and a bias part (13) for biasing the first cylinder along the optical axis.
(FR)
La présente invention concerne un cylindre de lentille susceptible d’accroître la plage de mouvement d’une lentille. Un cylindre de lentille (1) selon la présente invention comprend : un cadre de retenue de lentille (10) pour maintenir une lentille ; une unité d’entraînement (12) pour entraîner le cadre de retenue de lentille le long du sens de l’axe optique ; un premier cylindre (9) qui maintient l’unité d’entraînement et qui présente un galet de came (9a) ; un second cylindre (5) qui présente une rainure de came pour engager le galet de came ; et une partie de sollicitation (13) pour solliciter le premier cylindre le long de l’axe optique.
(JA)
レンズの可動範囲を広くするレンズ鏡筒を提供する。 本発明のレンズ鏡筒1は、レンズを保持するレンズ保持枠(10)と、前記レンズ保持枠を光軸方向に駆動する駆動部(12)と、前記駆動部を保持し、カムフォロア(9a)を有する第1筒(9)と、前記カムフォロアと係合するカム溝を有する第2筒(5)と、前記第1筒を光軸方向に付勢する付勢部(13)と、を備える。
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