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:
Nov. 03, 2020
Filed:
Dec. 18, 2018
Novartis Ag, Basel, CH;
Susanne Fechner, Aschaffenburg, DE;
Roger Biel, Aschaffenburg, DE;
Marcus Heift, Aschaffenburg, DE;
Thomas Tonn, Aschaffenburg, DE;
Alcon Inc., Fribourg, CH;
Abstract
Method for determining the refractive index (n) of a material of a contact lens, in particular of a soft contact lens, the contact lens () having a first surface and a second surface defining a lens geometry there between, by measuring the wavefront issued by the contact lens () with a wavefront sensor (), obtaining data of the geometry of at least one section of the contact lens () with an optical coherence tomography system () and communicating the geometry of the at least one section of the contact lens () from the optical coherence tomography system () to an analyzer, particularly a computer, and determining the refractive index (n) of the material of the contact lens from the geometry of the at least one section of the contact lens and from the wavefront issued by the contact lens ().