Title:
フォーカルプレンシャッタ装置および撮像装置
Document Type and Number:
Japanese Patent JP5414463
Kind Code:
B2
Abstract:
The focal-plane shutter apparatus includes a cam member and being rotated by a motor in one direction such that leading and trailing blade cams respectively make contact with leading and trailing blade driving members to drive them in a charging direction in which urging members are charged, and then to allow each of the leading and trailing blade driving members to move from a charge completion position to a blade drive standby position. Leading and trailing blade inclination portions of the cam member respectively allow each of the leading and trailing blade driving members to move from the charge completion position to the blade drive standby position. In a rotation direction of the cam member, a first angular area where the leading blade inclination portion is formed on the cam member is smaller than a second angular area where the trailing blade inclination portion is formed thereon.
Inventors:
Hiroki Niwamae
Application Number:
JP2009252485A
Publication Date:
February 12, 2014
Filing Date:
November 02, 2009
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B9/36; H04N5/225; H04N101/00
Domestic Patent References:
JP2009031513A | ||||
JP2004085818A | ||||
JP2000081649A | ||||
JP2123921U |
Attorney, Agent or Firm:
Ryosuke Fujimoto
Atsushi Mizumoto
Atsushi Mizumoto