Eye fundus observation apparatus

Details Eye fundus observation apparatus Eye fundus observation apparatus

1982-03-02

1984-05-22

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

354 62, A61B 314, G03B 2900

Patent

active

044497989

ABSTRACT:
In an eye fundus observation apparatus wherein light-intercepting members for eliminating flare are provided at predetermined positions in an illumination optical path which are substantially conjugate with the cornea and the front surface of the crystalline lens of an eye being examined in a condition in which the apparatus is focused to the fundus of the eye, an observation opening is formed at a position substantially conjugate with a position between the cornea and the front surface of the crystalline lens of the eye whereat the magnification of the reflected image on the rear surface of the crystalline lens is approximately one-to-one magnification in a condition in which the apparatus is focused to the fundus of the eye.

REFERENCES:
patent: 4146310 (1979-03-01), Kohayakawa et al.

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