Operating magnifier and miniature opthalmoscope

Details Operating magnifier and miniature opthalmoscope Operating magnifier and miniature opthalmoscope

1974-05-31

1976-03-23

Sacher, Paul A.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Folding

350 36, 350 38, 350 72, 351 16, A61B 312, G02B 2502

Patent

active

039457125

ABSTRACT:
A magnifier and miniature ophthalmoscope which may be worn over the eyes of a surgeon and which permits use without removal from the head as either an ophthalmoscope or as a magnifier. A first optical path of the instrument includes a magnifying objective and an eyepiece. A second optical path which can be introduced includes a first silvered mirror directed toward the center of the instrument and a second silvered mirror on the instrument center line and an objective so that each eye of the wearer examines a narrow field at about the center line of the instrument. A change means in the form of a carriage carrying the eyepiece of the magnifier and the first mirror may be moved to select the instrument function.

REFERENCES:
keeler advertisement, Amer. J. Ophthalmology, May 1971.

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