Patent ID: 9335563
Filing Date: 2016-05-10
CPC Classification: A61B,A61F,G02B,G02C

Claim Text:
1. An ophthalmic lens, comprising: a first surface and a second surface, the first and second surfaces disposed about an optical axis; an aspheric refractive profile imposed on the first or second surface; and a diffractive profile imposed on the first or second surface, wherein the aspheric refractive profile focuses light toward a far focus, and wherein the diffractive profile comprises a central zone that distributes a first non-zero percentage of light toward a far focus and a second non-zero percentage of light toward an intermediate focus, and a peripheral zone, surrounding the central zone, that distributes a third non-zero percentage of light toward the far focus and a fourth non-zero percentage of light toward the intermediate focus, wherein the percentage of light distributed by the peripheral zone toward the far focus is 63% and the percentage of light distributed by the peripheral zone toward the intermediate focus is 21%.