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. 30, 2018
Filed:
Oct. 06, 2014
Ophtec B.v., Groningen, NL;
Peter Biemold, Groningen, NL;
Erik de Haas, Groningen, NL;
Alfred Willem Wassenburg, Groninberg, NL;
Ophtec B.V., Groningen, NL;
Abstract
An ophthalmic lens to be worn on or in a human eye for refractive correction of astigmatism. The lens has an anterior surface and a posterior surface shaped such that at least a zone of the lens said lens has a first dioptric power over a first main meridian, a second dioptric power different from the first dioptric power over a second main meridian intersecting the first meridian, and a dioptric power between the first dioptric power and said second dioptric power over each meridian between the first and second main meridians, the optical power continuously varying from meridian to meridian. The main meridians and at least one meridian between the main meridians each have a different Coddington shape factor and a different asphericity that is related to the Coddington shape factor of the respective meridian in accordance with a relationship providing aberration neutral refraction for the respective meridian.