Patent · US Active

Phase-shifted center-distance diffractive design for ocular implant

US8652205B2 · kind B2 · utility

32Cited by
55References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 22, 2010
Grant dateFeb 18, 2014
Priority date—
Expiry dateOct 22, 2030

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61F2/1654
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A diffractive multifocal design for ocular implant is provided. This ocular implant includes a diffractive multifocal intraocular lens (IOL) and a number of haptics. The diffractive multifocal IOL passes optical energy to distance, intermediate and near foci. The haptics mechanically couple to the diffractive multifocal IOL in order to position and secure the diffractive multifocal IOL within the eye. The diffractive multifocal IOL may include both a diffractive region and a refractive region, the diffractive multifocal IOL operable to phase shift optical energy such that constructive interference occurs within the diffractive region and the refractive region.

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