Hand-held type eye examining apparatus, auxiliary apparatus on w

Details Hand-held type eye examining apparatus, auxiliary apparatus on w Hand-held type eye examining apparatus, auxiliary apparatus on w

1997-02-24

1998-06-30

Mai, Huy

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351200, 351204, A61B 310

Patent

active

057722986

ABSTRACT:
An ophthalmologic apparatus comprises an eye examining apparatus of the hand-held type, an auxiliary apparatus on which the eye examining apparatus is removably mounted, a discrimination circuit for discriminating whether the eye examining apparatus and the auxiliary apparatus are connected together or separated from each other, and a controller for operatively associating the eye examining apparatus and the auxiliary apparatus with each other when the discrimination circuit discriminates that the eye examining apparatus is connected.

REFERENCES:
patent: 5528323 (1996-06-01), Fujieda et al.
patent: 5565939 (1996-10-01), Fujieda
patent: 5612754 (1997-03-01), Tanaka
Patent Abstracts of Japan, vol. 18, No. 451 (C-1241), Aug. 23, 1994 (JP-A-06 142 057).
Patent Abstracts of Japan, vol. 95, No. 3, Apr. 28, 1995 (JP-A-06 339 465).

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