Patent · US Active

Multizonal lens with extended depth of focus

US8974526B2 · kind B2 · utility

57Cited by
172References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 5, 2009
Grant dateMar 10, 2015
Priority date—
Expiry dateAug 17, 2031

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02C2202/02
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

An intraocular lens for providing enhanced vision includes an optic having a clear aperture having an outer diameter. The optic has opposing first and second surfaces disposed about an optical axis, the first surface including a cross-sectional profile. The optic further includes central and outer zones that fill the entire clear aperture of the optic. The central zone is disposed about the optical axis having an outer diameter, the profile in the vicinity of the central zone having a constant radius of curvature or a radius of curvature that increases with increasing radius from the optical axis.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.