1982-06-02
1984-03-06
Perkey, William B.
354213, 354214, G03B 118
Patent
active
044350619
ABSTRACT:
An electric motor drive device for a camera is arranged such that, in cases where power supply to a film winding motor is stopped with the camera still in an incomplete winding state and when the film comes to the end thereof after completion of a photographic operation on every frame, the power supply to the motor is resumed in response to a film rewinding completion signal produced from a film detection switch upon completion of film rewinding so that the camera can be brought into a winding completion state. This arrangement solves the problem of phase discrepancy arising between the camera body and the electric motor drive device when they are separated from each other.
REFERENCES:
patent: 3809464 (1974-05-01), Bennett
patent: 4294530 (1981-10-01), Iwashita et al.
patent: 4306794 (1981-12-01), Fukahuri et al.
patent: 4340289 (1982-07-01), Maida
patent: 4371244 (1983-02-01), Daitoku et al.
patent: 4373795 (1983-02-01), Kimura et al.
Fujino Masahisa
Fukahori Hidehiko
Ichiyanagi Toshikazu
Iwashita Tomonori
Mashimo Yukio
Canon Kabushiki Kaisha
Perkey William B.
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