Viewfinder focusing screen supporting apparatus for single-lens

Details Viewfinder focusing screen supporting apparatus for single-lens Viewfinder focusing screen supporting apparatus for single-lens

1978-08-16

1980-02-05

Hix, L. T.

354155, 354200, G03B 1300, G03B 1912

Patent

active

041870166

ABSTRACT:
A finder screen-supporting apparatus for a single-lens reflex camera with an interchangeable focusing screen, comprises a screen support frame attachable to the camera body and directly supporting the focusing screen by four ends thereof, and a spring member pressing the focusing screen to the focal position and fixing said screen in said position upon attaching said frame to said camera body.

REFERENCES:
patent: 1153393 (1915-09-01), Kajiwara
patent: 2981166 (1961-04-01), Madge
patent: 3174417 (1965-03-01), Saver et al.

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