Automatic focusing camera

Details Automatic focusing camera Automatic focusing camera

1987-06-10

1988-03-22

Adams, Russell E.

3541951, G03B 300

Patent

active

047332611

ABSTRACT:
An automatic focusing camera having a driving mechanism for moving a taking lens on the basis of a signal provided by a distance measuring device. The lens position is controlling by a cam member capable of being turned stepwise in one direction about the optical axis of a taking lens by a pulse signal given by the distance measuring device. The driving mechanism has a light quantity controlling movable coil member and a taking lens driving and controlling movable coil member. Both the light quantity controlling movable coil member and the taking lens driving and controlling movable coil member are disposed within a gap and exposed to a common magnetic field.

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patent: 4576460 (1986-03-01), Daitoku et al.
patent: 4598989 (1986-07-01), Yamada et al.

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