Patent ID: 9022563
Filing Date: 2015-05-05
Classification: G02C

Abstract:
1. A lens, comprising: a rotationally symmetric aspheric region providing a first portion of a total add power of the lens; a non-rotationally symmetric aspheric region providing a second portion of a total add power of the lens; wherein a portion of the rotationally symmetric aspheric region is in optical communication with a portion of the non-rotationally symmetric aspheric region such that the first portion of the total add power and the second portion of the total add power are combined to contribute to the total add power of the lens; wherein the rotationally symmetric aspheric region and the non-rotationally symmetric aspheric region are collapsed to form a single region on a surface of the lens; and wherein the rotationally symmetric aspheric region provides a progression of optical power that is substantially the same in all radial directions about an axis of rotation that is substantially perpendicular to the surface of the lens.