Patent ID: 9638836
Date: 2017-05-02
CPC Classifications: G01B,G02B

Claim:
1. A lens, comprising: a material spanning an area providing a single inside reflective three-dimensional (3D) surface; wherein said area of said reflective 3D surface is defined by a plurality of reflective optical segments including a first reflective optical segment and at least a second reflective optical segment that each include a sub-element set including a center sub-element (CS) and a plurality of neighboring sub-elements; said plurality of reflective optical segments each having their own non-overlapping optical center axis and a cylindrically bent spherical surface; wherein said cylindrically bent spherical surface is defined by said plurality of neighboring sub-elements in each of said plurality of reflective optical segments being located at different 3D points so that said plurality of reflective optical segments relative to at least one neighboring one of said plurality of reflective optical segments provide different values of spherical curvature and different values of cylindrical axis orientation, and wherein each of said plurality of reflective optical segments provide a different optical power for correction of astigmatism.