Eye refractive power measuring apparatus with orientation depend

Details Eye refractive power measuring apparatus with orientation depend Eye refractive power measuring apparatus with orientation depend

1995-01-25

1996-10-01

Dang, Hung X.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351221, A61B 314, A61B 310

Patent

active

055614825

ABSTRACT:
An eye refractive power measuring apparatus is provided with a measuring device opposed to eyes to be examined for measuring the eye refractive power of the eyes to be examined, an eye-to-be-examined detecting device for detecting whether the eye to which the measuring device is opposed is one or the other of the eyes to be examined, a designating switch for designating the direction in which the measuring device is opposed to the eyes to be examined, and a judging whether the eye to be examined is device for judging a right eye or a left eye based on the result of the detection by the eye-to-be-examined detecting device and the direction designated by the designating switch.

REFERENCES:
patent: 4353625 (1982-10-01), Nohda et al.

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