Optics: eye examining – vision testing and correcting – Eye examining or testing instrument – Objective type
Patent
1996-01-03
1997-11-25
Dang, Hung X.
Optics: eye examining, vision testing and correcting
Eye examining or testing instrument
Objective type
351205, A61B 310
Patent
active
056918003
ABSTRACT:
An ophthalmologic apparatus comprises a measuring device for measuring an eye being examined, a display for displaying the result of the measurement by the measuring device, a counter for counting the number of times of measurement of the eye being examined with respect to each of the right and left eyes, and a display control device for causing the display to display the number of times of measurement of each of the right and left eyes counted by the counter.
REFERENCES:
patent: 4390255 (1983-06-01), Nohda et al.
Patent Abstracts of Japan, vol. 18, No. 187 (P-1720), Mar. 30, 1994 (JP-A-5 346371).
Iki Yoichi
Yamashita Seiho
Dang Hung X.
Nikon Corporation
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