Ophthalmic apparatus having three dimensional calculating means

Details Ophthalmic apparatus having three dimensional calculating means Ophthalmic apparatus having three dimensional calculating means

1994-08-30

1997-01-21

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351208, A61B 310

Patent

active

055963773

ABSTRACT:
An ophthalmic apparatus in which alignment light is projected on the objected eye, and cornea reflecting images of the alignment light are detected at a first and a second detecting optical systems disposed in different directions respectively and, based on the detected data at the first and the second detecting optical systems, a three-dimensional position of the measured portion is found out by a calculating device.

REFERENCES:
patent: 5381194 (1995-01-01), Nishio et al.

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