Eye fundus camera

Details Eye fundus camera Eye fundus camera

1978-09-26

1981-08-11

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

A61B 310

Patent

active

042831245

ABSTRACT:
An eye fundus camera illuminates the eye to be inspected with a light that does not cause dilation or contraction of the eye pupil. In the camera, a photographic system forms an image of the eye fundus on a recording body. A projection system projects an image, of infrared light, or predetermined shape on the eye fundus. An observation system observes the image. Focusing means permit focusing the eye fundus image on the recording body at the same time as the image of the mark is formed on the eye fundus. The system is focused by operating the focusing means to focus an image of the mark.

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patent: 3777738 (1973-12-01), Sugita et al.
patent: 3791719 (1974-02-01), Kratzer et al.
patent: 3925793 (1975-12-01), Matsumara et al.

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