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US 2001/0024265 A1Published application
Ophthalmic apparatus
AssigneeNidek Co., Ltd.
InventorMasanao Fujieda
Life of this patent
Estimating the term…
Abstract
An ophthalmic apparatus comprising a first input unit with which plural measurement data concerning an eye to be examined are inputted, a second input unit with which images of the eye including an anterior eye segment are inputted, each of the image is photographed at the time of measuring each of the inputted measurement data, and a calculation and control unit which detects and corrects two-dimensional displacement or deviation between each of the measurement data based on each of the inputted images of the eye.
Claims14
An ophthalmic apparatus comprising:
- a first input unit with which plural measurement data concerning an eye to be examined are inputted;
- a second input unit with which images of the eye including an anterior eye segment are inputted, each of the image is photographed at the time of measuring each of the inputted measurement data;
- and
- a calculation and control unit which detects and corrects two-dimensional displacement or deviation between each of the measurement data based on each of the inputted images of the eye.
1 more element
An ophthalmic apparatus comprising:
- a corneal shape measurement unit which measures distribution of corneal radius of curvature of an eye to be examined, the corneal shape measurement unit having
- an optical system for projecting a first measurement target onto a cornea of the eye, and
- an optical system provided with a first photographing element for detecting an image of the first measurement target formed on the cornea;
- an eye refractive power measurement unit which measures distribution of eye refractive power of the eye, the eye refractive power measurement unit having
- an optical system for projecting a second measurement target onto a fundus of the eye, and
- an optical system for detecting an image of the second measurement target formed on the fundus;
- an alignment unit which detects an alignment state of the ophthalmic apparatus relative to the eye, the alignment unit having
- an optical system for projecting an alignment target onto the cornea of the eye, and
- an optical system provided with a second photographing element for photographing an image of the alignment target formed on the cornea;
- and
- a calculation and control unit which detects and corrects two-dimensional displacement or deviation between each of data on the measured distribution with reference to at least an image of the eye including an anterior eye segment photographed by either the first photographing element or the second photographing element at the time of each measurement.
8 more elements
An ophthalmic apparatus comprising:
- a first input unit with which plural measurement data concerning an eye to be examined are inputted;
- a second input unit with which displacement or deviation of the eye relative to a predetermined reference position at the time of measuring each of the inputted measurement data is inputted;
- and
- a calculation and control unit which detects and corrects two-dimensional displacement or deviation between each of the measurement data with reference to each of the inputted displacement.
1 more element
Dependencies are inferred from the claim text.