Eye fundus camera

Details Eye fundus camera Eye fundus camera

1976-12-03

1979-04-17

Gonzales, John

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351 7, 354 48, G03B 2900

Patent

active

041497872

ABSTRACT:
In an eye fundus camera an optical system illuminates the eye fundus and a sensor detects the intensity of reflection from the eye. When the intensity of reflection is sufficient to indicate that the person being examined has blinked his eye, the photographic system is disabled.

REFERENCES:
patent: 2947216 (1960-08-01), Drews
patent: 3280714 (1966-10-01), Gunther et al.
patent: 3614214 (1971-10-01), Cornsweet et al.
patent: 3715166 (1973-02-01), Leighty et al.
patent: 3818494 (1974-06-01), Tanikoshi et al.
patent: 3888569 (1975-06-01), Munnerly et al.
patent: 3915564 (1975-10-01), Urban
patent: 3944342 (1976-03-01), Martinez

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