The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2020
Filed:
Dec. 19, 2014
Cassini B.v., 's-Gravenhage, NL;
Ronald Matijs Ensing, Leiden, NL;
Victor Arni De Paz Sicam, Rotterdam, NL;
Cassini B.V., 's-Gravenhage, NL;
Abstract
A method of determining global shape parameters of a cornea includes determining a height map of a cornea by: illuminating a cornea of an eye using a stimulator source having a plurality of point sources; capturing a reflected image of the plurality of point sources and determining a position of reflections of the respective plurality of point sources and deriving the height map of the cornea based on a position of the plurality of point sources and the position of the reflections of the respective plurality of point sources; fitting the height map as derived to a toric aspheric model to obtain a global fitting of the corneal surface to the toric aspheric model and; using the global fitting to determine one or more parameters related to an astigmatism of the cornea.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile