Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Folding
Patent
1974-10-29
1977-12-27
Sacher, Paul A.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Folding
350 96B, 351 16, A61B 312
Patent
active
040652084
ABSTRACT:
An ophthalmoscope for allowing an observer to clearly and easily view the retina of a patient's eye. The ophthalmoscope has a hollow body member with an objective portion attached to one end thereof for placement over the patient's eye and with an ocular portion attached to the other end thereof for allowing the observer to view the patient's eye. The objective portion includes a contact lens member fixedly attached to the body member for contacting engagement with the cornea of the patient's eye. A light source directs light into the body member and against a deflection member positioned in the body member adjacent the objective portion. The deflection member directs the light from the light source and the line of sight from the ocular portion into the retina of the patient's eye. A magnification member is preferably positioned in the body member between the objective portion and the ocular portion for causing the patient's eye to be magnified as the observer views the patient's eye through the ocular portion.
REFERENCES:
patent: 3630602 (1971-12-01), Herbert
patent: 3664730 (1972-05-01), Cardona
patent: 3698099 (1972-10-01), Matsura
patent: 3770342 (1973-11-01), Dudragne
patent: 3780979 (1973-12-01), Guillebon
patent: 3820879 (1974-06-01), Frisen
Sacher Paul A.
Walker III John R.
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