Single-lens reflex camera with interchangeable viewfinder and in

Details Single-lens reflex camera with interchangeable viewfinder and in Single-lens reflex camera with interchangeable viewfinder and in

1984-06-11

1986-04-08

Mathews, A. A.

354286, 354400, G03B 1302

Patent

active

045808872

ABSTRACT:
A single-lens reflex camera of a type having an interchangeable viewfinder and an interchangeable lens in which electrical signals are transmitted between the viewfinder and lens directly without going through the body of the camera. A first group of contacts is arranged on a protrusion of the interchangeable viewfinder. Preferably, this first group of contacts is spring loaded. A second group of contacts is provided on the barrel of the interchangeable lens. The first and second groups of contacts are arranged so that, when both the viewfinder and the lens are mounted on the body of the camera, respective ones of the contacts of the two groups are in contact with one another.

REFERENCES:
patent: 3967299 (1976-06-01), Shono
patent: 4469422 (1984-09-01), Kimura et al.
patent: 4482230 (1984-11-01), Magariyama et al.

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