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:
Oct. 25, 2011
Filed:
Jan. 29, 2010
José Alonso Fernández, Madrid, ES;
Daniel Crespo Vázquez, Madrid, ES;
Thomas A. Balch, Ranchos Palos Verdes, CA (US);
Nancy L. S. Yamasaki, Long Beach, CA (US);
José Alonso Fernández, Madrid, ES;
Daniel Crespo Vázquez, Madrid, ES;
Thomas A. Balch, Ranchos Palos Verdes, CA (US);
Nancy L. S. Yamasaki, Long Beach, CA (US);
Indizen Optical Technologies, S.I., Madrid, ES;
Abstract
The present invention is embodied in ophthalmic lenses having a first lens surface that is described by a continuous, gradual increase in optical power that proceeds without inflection points of discontinuities across substantially the entire useable optical area of this lens surface, and an opposite surface of the lens configured to cooperate with the power gradation of the first surface to provide a desired prescription, including at least one stabilized area of optical power. The power gradation of the first surface increases from one edge of the useable area to substantially the opposite edge, and may increase according to linear or non-linear relationships. In another preferred embodiment, the two lens surfaces cooperate to create two stabilized areas of optical power, for a prescription with near-viewing and distance-viewing values.