Cam actuated coupling and latching apparatus

Details Cam actuated coupling and latching apparatus Cam actuated coupling and latching apparatus

1977-11-23

1979-01-23

Griffin, Donald A.

350255, 354195, G03B 302, G03B 1302, G03B 1320

Patent

active

041357981

ABSTRACT:
In a variable focus lens camera having a rangefinder that is operatively coupled to the lens of said camera for focusing thereof, a known relationship must exist between subject distance as determined by said rangefinder and the subject-in-focus position of said lens, to properly focus the image of the subject to be photographed at said camera's film plane. The present invention provides an arrangement whereby a portion of the means for moving said lens to the correct in-focus position is pivotally uncoupled from said lens by cam actuating means so that the proper rangefinder to lens-position relationship can be established. Once this relationship is established, the uncoupled portion of said lens movement means is recoupled to said variable focus lens by cam actuated pivotal movement of same and is maintained in this coupled position by interlocking said cam actuating means with variable focus lens support structure.

REFERENCES:
patent: 2027411 (1936-01-01), Whittaker
patent: 2101543 (1937-12-01), Henkel
patent: 3522764 (1970-08-01), Biber et al.
patent: 3541941 (1970-11-01), Barr et al.
patent: 3914777 (1975-10-01), Slavitter

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