Photography – Camera detail – Shutter
Patent
1997-12-15
2000-02-22
Lee, Eddie C.
Photography
Camera detail
Shutter
396248, 310328, G03B 914, H01L 4104
Patent
active
060272600
ABSTRACT:
A camera shutter having a shutter aperture, shutter blades, and a driving device for driving the shutter blades to open and close the shutter aperture. The driving device includes a pair of lever members spaced apart and confronting each other across the shutter aperture, each of the lever members having a first end portion and a second end portion. A piezoelectric element is connected to and between the lever members at the first end portions thereof for undergoing elastic deformation to oscillate the lever members. An elastic member is connected to and between the lever members at the second end portions thereof for undergoing elastic displacement in response to oscillation of the lever members. A transmission member is integrally connected to a central portion of the elastic member for transmitting the displacement of the elastic member to the shutter blades to open and close the shutter aperture.
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patent: 5008699 (1991-04-01), Tominaga et al.
patent: 5307170 (1994-04-01), Itsumi et al.
patent: 5659821 (1997-08-01), Kawakita et al.
Ishikawa Tadashi
Oda Hajime
Han J. K.
Lee Eddie C.
Seiko Precision Inc.
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