发明名称 SHUTTER DEVICE, CAMERA USING THE DEVICE AND PICTURE DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To prevent light shielding capability from being deteriorated because the smooth movement of a blade group is damaged and the mutual superposing amount of blades when the blades are developed is not secured in the case of miniaturizing a shutter device. SOLUTION: This shutter device is constituted of a 1st blade member 2 driven to travel in a direction where a shutter aperture is opened/closed by the parallel linking action of 1st and 2nd link constituting members 4 and 5 turnably attached to a bottom board constituting member 1 (6) having the shutter aperture 1a and a 2nd blade member 3 being a blade member whose traveling moving amount at the time of opening/closing a shutter is smaller than that of the member 2, driven to travel in the direction where the shutter aperture is opened/closed not by the parallel linking action but by a driving member for transmitting driving force to either the member 4 or 5, and also guided to be in the same posture (that is, parallel posture) at least between a state where the shutter aperture is opened and a state where it is closed by the guiding action between the bottom board constituting member and the member 3.
申请公布号 JP2001174872(A) 申请公布日期 2001.06.29
申请号 JP19990361856 申请日期 1999.12.20
申请人 CANON INC 发明人 TOYODA YASUHIRO;TOMITAKA AKIRA
分类号 G03B9/36;(IPC1-7):G03B9/36 主分类号 G03B9/36
代理机构 代理人
主权项
地址