Eye fundus camera having variable power photographing optical sy

Details Eye fundus camera having variable power photographing optical sy Eye fundus camera having variable power photographing optical sy

1979-05-04

1980-11-25

Gonzales, John

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351 7, 354197, A61B 314

Patent

active

042355400

ABSTRACT:
Eye fundus camera including a photographing optical system comprised of an objective lens, an imaging lens and a magnification power changing lens device. The power changing lens device is movable in axial direction for effecting focusing.

REFERENCES:
patent: 1741526 (1929-12-01), Kuhl
patent: 3535027 (1970-10-01), Littmann et al.
patent: 3652153 (1972-03-01), Gambs
patent: 3896466 (1975-07-01), Korpert
patent: 3944342 (1976-03-01), Martinez

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