Title:
レンズ鏡筒および光学機器
Document Type and Number:
Japanese Patent JP4612764
Kind Code:
B2
Abstract:
A lens barrel is constructed by: a lens holding barrel holding a lens and having a first flange portion for preventing movement of the lens in the direction of an optical axis and permitting movement of the lens in a direction perpendicular to the optical axis and a ring-shaped guide surface; an intermediate ring having a wedge portion and movably provided on the guide surface of the lens holding barrel; and a supporting barrel supporting the lens holding barrel and having a second flange portion adapted to come into engagement with the first flange portion of the lens holding barrel and a wedge receiving portion which comes into contact with the wedge portion of the intermediate ring, in which the lens holding barrel is moved in the direction perpendicular to the optical axis for eccentricity adjustment, in a state where the lens holding barrel is moved, the intermediate ring is moved on the guide surface of the lens holding barrel, and the wedge portion comes into contact with the wedge receiving portion in this state, thereby fixing the lens holding barrel and the intermediate ring to the supporting barrel.
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Inventors:
Kazuhiro Noguchi
Application Number:
JP2000160943A
Publication Date:
January 12, 2011
Filing Date:
May 30, 2000
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B7/02; G02B7/10; H04N5/225
Domestic Patent References:
| JP7036112U | ||||
| JP7020366A | ||||
| JP6051179A | ||||
| JP10160993A | ||||
| JP8327869A | ||||
| JP28010170Y1 | ||||
| JP59166205U |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Atsushi Mizumoto