Ophthalmologic apparatus detecting position of bright points on

Details Ophthalmologic apparatus detecting position of bright points on Ophthalmologic apparatus detecting position of bright points on

1993-11-01

1996-08-20

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351211, 351221, A61B 310

Patent

active

055483550

ABSTRACT:
The apparatus radiates light onto an eye to be examined and picks up an image of the eye, which is irradiated with light. And then the apparatus compares image information obtained from the image pickup with a threshold determined in advance for the image information so as to store the image information larger than the threshold. The apparatus calculates a measured value of the eye to be examined on the basis of the stored image information.

REFERENCES:
patent: 4678297 (1987-07-01), Ishikawa et al.
patent: 4859051 (1989-08-01), Fukuma et al.
patent: 4878750 (1989-11-01), Sekiguchi
patent: 4917458 (1990-04-01), Matsumura
patent: 5110200 (1992-05-01), Snook
patent: 5212507 (1993-05-01), Fujieda et al.
patent: 5214456 (1993-05-01), Gersten

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