Title:
レンズ鏡筒及び撮像装置
Document Type and Number:
Japanese Patent JP5570264
Kind Code:
B2
Abstract:
A lens barrel which is capable of reducing, when the lens barrel is in a stored position, the thickness of an image pickup apparatus in its optical axis direction and also the diameter of the lens barrel. The lens barrel has a first lens, a second lens, a lens holding unit adapted to hold the second lens, and an iris diaphragm. The lens barrel moves between a photographing position and a stored position in the optical axis direction. The second lens includes a convex spherical portion protruding toward the first lens. The second lens is arranged close to the first lens and an inner circumferential portion of the diaphragm blades is arranged inwardly in the radial direction with respect to the lens holding unit and oppositely to the convex spherical portion in the radial direction, when the lens barrel is in the stored position.
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Inventors:
Tomoyuki Kudo
Application Number:
JP2010068619A
Publication Date:
August 13, 2014
Filing Date:
March 24, 2010
Export Citation:
Assignee:
Canon, Inc.
International Classes:
G02B7/02; G03B5/00; G03B9/06; G03B17/04
Attorney, Agent or Firm:
Role of another Shigehisa