Patent ID: 7455404
Filing Date: 2008-11-25
Classification: A61F,G02C

Abstract:
1. An ophthalmic lens, comprising: an optic having an anterior surface, a posterior surface, and an optical axis; a first region having a first refractive optical power and comprising (1) a first base curvature having a finite first radius of curvature and (2) a multifocal phase plate having a first diffraction order with a first diffractive optical power, the first region configured for forming a first focus and a second focus; and a second region having a second refractive optical power and comprising (1) a second base curvature having a finite second radius of curvature different from the first radius of curvature and (2) a monofocal phase plate having a first diffraction order with the second diffractive optical power, the second region configured for forming a third focus.