Lens mounting having a reversible motor for controlling focusing

Details Lens mounting having a reversible motor for controlling focusing Lens mounting having a reversible motor for controlling focusing

1984-11-13

1986-05-20

Adams, Russell E.

3541951, 35419512, 354286, G03B 310

Patent

active

045897530

ABSTRACT:
A lens mounting having a control sleeve rotatable for axially moving a focusing lens member and a ring for driving diaphragm blades with a reversible motor incorporated therein, whereby focusing is operated when the motor rotates in one of the clockwise and counterclockwise directions, and the diaphragm is closed down when in the other direction.

REFERENCES:
patent: 3311747 (1967-03-01), Smith, Jr. et al.
patent: 4152060 (1979-05-01), Specht
patent: 4191460 (1980-03-01), Fujiki
patent: 4274735 (1981-06-01), Tamura et al.
patent: 4396267 (1983-08-01), Hirohata et al.
patent: 4422740 (1983-12-01), Kawai et al.
patent: 4504137 (1985-03-01), Martin et al.
patent: 4519691 (1985-05-01), Yamada et al.

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