Automatic focusing arrangement for changing the focus driving di

Details Automatic focusing arrangement for changing the focus driving di Automatic focusing arrangement for changing the focus driving di

1982-11-08

1984-11-20

Adams, Russell E.

354406, 354286, G03B 310

Patent

active

044836031

ABSTRACT:
A camera body and an interchangeable lens removably mounted thereon are equipped with an automatic focusing arrangement. The interchangeable lens includes a signal means for generating a relation signal representing the relationship between the driving directions of a driven section and a focus adjusting section. The camera body includes a focus condition detecting circuit for generating a focusing signal indicating the direction for focusing, a driving section for driving the driven section and change-over means for reversing the relationship, between a direction indicated by the focusing signal and a driving direction of the driving section in response to the relation signal from the signal means.

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patent: 4304463 (1981-12-01), Tomori
patent: 4323303 (1982-04-01), Enomoto
patent: 4391488 (1983-07-01), Ishizaka et al.
patent: 4400075 (1983-08-01), Tomori et al.
patent: 4403843 (1983-09-01), Maitani et al.
patent: 4413893 (1983-11-01), Tomori
patent: 4413894 (1983-11-01), Miki et al.
patent: 4416526 (1983-11-01), Tomori et al.

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