Range focusing system for a camera

Details Range focusing system for a camera Range focusing system for a camera

1984-02-13

1985-03-19

Adams, Russell E.

354403, 35419512, G03B 1318

Patent

active

045055661

ABSTRACT:
A camera provided with a fixed focusing lens as a main photographic wherein a range finder is provided for setting at two distances, an oscillating lever is provided so as to dispose an attachment lens for short range photography in front of the main photographic lens by a cam gear actuated by a release signal and rotating one turn to stop, and a holding mechanism is provided to hold the oscillating lever in the state where the attachment lens is in front of the main photographic lens when a short range signal is issued from the range finder. The shutter cocking and exposure control can be effected by the cam gear.

REFERENCES:
patent: 4214829 (1980-07-01), Ohashi
patent: 4277158 (1981-07-01), Zawodny
patent: 4336988 (1982-06-01), Johnson

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