Ocular position measuring apparatus

Details Ocular position measuring apparatus Ocular position measuring apparatus

1984-10-25

1987-12-15

Bovernick, Rodney B.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351204, 351211, A61B 302, A61B 310

Patent

active

047128950

ABSTRACT:
An ocular position measuring apparatus comprising a pair of fixation marks capable of emitting visible flickering beams for being watched by patient, a first pair of half mirrors positioned between the patient's eyes and the marks and an observing system for observing images of the patient's eyes on produced by light beams reflected by the half mirrors.

REFERENCES:
patent: 1327163 (1920-01-01), Mathewson et al.
patent: 3454331 (1969-07-01), Maitenaz
patent: 4179195 (1979-12-01), Krumeich
patent: 4372655 (1983-02-01), Matsumura
patent: 4465348 (1984-08-01), Lang et al.

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