Title:
レンズ鏡筒及び撮像装置
Document Type and Number:
Japanese Patent JP5294914
Kind Code:
B2
Abstract:
A lens barrel capable of reducing the radial size thereof while maintaining the degree of freedom in layout of a shutter and a anti-shake mechanism. A barrier drive ring includes first and second rotation-transmitting protrusions axially protruding toward an imaging area and parallel to and substantially opposed to each other. An image pickup element-holding member includes a first and second cam contact section which are brought into contact with the first and second rotation-transmitting protrusion, when the lens barrel is retracted. Rotation transmission to the barrier drive ring is performed in a varying manner first via a contact between the first rotation-transmitting protrusion and first cam contact section, then via contacts between the first and second rotation-transmitting protrusions and the first and second cam contact sections, and finally via a contact between the second rotation-transmitting protrusion and the second cam contact section.
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Inventors:
Akihiko Masuki
Application Number:
JP2009032863A
Publication Date:
September 18, 2013
Filing Date:
February 16, 2009
Export Citation:
Assignee:
Canon Inc
International Classes:
G02B7/02; G03B9/02; G03B9/08
Domestic Patent References:
| JP2002318418A | ||||
| JP2005308810A | ||||
| JP7225409A |
Attorney, Agent or Firm:
Another role Shigehisa