Aperture interlocking device for a single lens reflex camera of

Details Aperture interlocking device for a single lens reflex camera of Aperture interlocking device for a single lens reflex camera of

1976-12-09

1978-04-18

O'Connor, Edna M.

354152, G03B 1302

Patent

active

040854167

ABSTRACT:
In a single lens reflex camera, an aperture interlocking device wherein a pantograph mechanism has one lever biased in one direction within a viewfinder detachable with respect to the body of the camera, is connected to the engaging portion of the aperture ring of the picture-taking lens during the mounting of the viewfinder to the camera body so that the aperture information of the picture-taking lens is transmitted to an exposure control device by displacement of the pantograph mechanism, is provided with first guide means for guiding the pantograph mechanism so that a pin on the one lever of the pantograph mechanism is rotatable about the optical axis of the picture-taking lens, an engaging lever engageable with the engaging portion of the aperture ring and supported for rotation on the one lever of the pantograph mechanism, and second guide means for guiding the engaging lever so that the engaging lever is rotated about the optical axis of the picture-taking lens.

REFERENCES:
patent: 3940779 (1976-02-01), Kuronoto et al.

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