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Patent Searching and Data


Title:
レンズ装置および撮像装置
Document Type and Number:
Japanese Patent JP5582919
Kind Code:
B2
Abstract:
The lens apparatus includes an aperture stop (SP) forming an aperture, a first lens (A or B) disposed on a first side further than the aperture stop, the first side being one of an object side and an image side, and a second lens (B or A) disposed on a second side further than the aperture stop, the second side being the other of the object side and the image side. In zooming or focusing, the aperture stop is moved independently of the first and second lenses. The first lens and the aperture stop are brought into a first state where an aperture stop side lens surface of the first lens is located away from the aperture stop on the first side and a second state where at least part of the aperture stop side lens surface (RA or RB) of the first lens protrudes through the aperture to the second side further than the aperture stop.

Inventors:
Daisuke Ito
Application Number:
JP2010185184A
Publication Date:
September 03, 2014
Filing Date:
August 20, 2010
Export Citation:
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Assignee:
Canon, Inc.
International Classes:
G02B15/20; G02B7/10; G02B13/18; G03B9/02
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsuya Mizumoto