Eyepiece

Details Eyepiece Eyepiece

1977-05-03

1978-10-10

Griffin, Donald A.

350 57, G03B 1302, G02B 2316

Patent

active

041199847

ABSTRACT:
An eyepiece for use in conjunction with a viewfinder of a camera including a tube, prescription lens adapted to be held in the tube by a flexible ring, a rubber eye rim attached to the tube and means for attaching the tube to a camera viewfinder.

REFERENCES:
patent: 169917 (1875-11-01), Nystrom
patent: 2351747 (1944-06-01), Eckert
patent: 3753611 (1973-08-01), Ebbesen
patent: 3842431 (1974-10-01), Sakuma
patent: 4051496 (1977-09-01), Iida et al.

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