Motorized drive device for camera

Details Motorized drive device for camera Motorized drive device for camera

1986-09-25

1987-09-01

Perkey, W. B.

354206, 354213, 354214, 3542891, G03B 118, G03B 1718, G03B 1742

Patent

active

046905324

ABSTRACT:
A motorized drive device for a camera having an electric motor and a transmission system having at least two speed change ratios is provided with control means responsive to drop of the speed of rotation of the motor for switching the transmission system from the high speed side to the low speed side and means for indicating that the transmission system is running at the low speed.

REFERENCES:
patent: 4086603 (1978-04-01), Kozuki et al.
patent: 4272173 (1981-06-01), Iwashita et al.
patent: 4351595 (1982-09-01), Date et al.
patent: 4455075 (1984-06-01), Iwashita et al.
patent: 4565432 (1986-01-01), Fukahori et al.
patent: 4572637 (1986-02-01), Inoue
patent: 4616913 (1986-10-01), Suzuki et al.
patent: 4647169 (1987-03-01), Suzuki et al.

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