Television – Special applications – Simulator
Patent
1992-07-06
1994-07-05
Perkey, W. B.
Television
Special applications
Simulator
348363, 348367, G03B 7097, H04N 5238
Patent
active
053271939
ABSTRACT:
An exposure device with a shutter operating in such a manner that the size of aperture opening defined by the shutter blades first increases from zero and then starts to decrease in predetermined timing, comprises a mechanism for opening the shutter with the help of an electric motor, while charging a spring as the drive source for closing movement of the shutter, an electromagnet arranged upon current supply to change the driving of the shutter from the opening mechanism to the spring, and a control circuit for controlling the operation of the shutter in such a manner that when taking one picture, the shutter blades reciprocate two times continuously to recycle substantially twice the exposure operation, as the operation of each of the motor and the electromagnet is recycled twice.
REFERENCES:
patent: 4206987 (1980-06-01), Sunouchi et al.
patent: 4500185 (1985-02-01), Haraguchi et al.
patent: 4527876 (1985-07-01), Tanaka et al.
patent: 4534638 (1985-08-01), Hirohata et al.
patent: 4676624 (1987-06-01), Kiuchi et al.
patent: 4734777 (1988-03-01), Okino et al.
patent: 4918481 (1990-04-01), Yasukawa et al.
patent: 5036400 (1991-07-01), Haruki et al.
patent: 5115319 (1992-05-01), Arai et al.
patent: 5189519 (1993-02-01), Miyamoto et al.
patent: 5194960 (1993-03-01), Ota
Date Nobuaki
Takeda Shohei
Canon Kabushiki Kaisha
Perkey W. B.
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