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.
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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 |
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代理人 |
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主权项 |
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地址 |
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