Optical system for ophthalmological instruments

Details Optical system for ophthalmological instruments Optical system for ophthalmological instruments

1981-05-04

1984-03-27

Corbin, John K.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

354 62, 351214, A61B 314, G03B 2900

Patent

active

044390238

ABSTRACT:
A compactly designable optical system for ophthalmological instruments comprising an illumination system so adapted as to illuminate a fundus with rays having passed through a ring slit and been focused on the cornea of an eyeball to be examined, and an observation/photographing system so adapted as to permit observing and photographing an image of said eyeball with a small reflector mirror arranged in said illumination system so as to be inclined with regard to the optical axis thereof and a relay lens for focusing the rays which are reflected by the fundus, passing through said objective lens and reflected by said small reflector mirror.

REFERENCES:
patent: 4149787 (1979-04-01), Kobayashi et al.

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