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MULTIFOCAL LENS HAVING A PROGRESSIVE OPTICAL POWER REGION AND A DISCONTINUITY

  • US 20110007266A1
  • Filed: 07/19/2010
  • Published: 01/13/2011
  • Est. Priority Date: 03/29/2007
  • Status: Active Grant
First Claim
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1. A lens comprising:

  • a first layer having a first index of refraction, wherein the first layer has a first curvature and a second curvature, wherein the second curvature provides a single optical power; and

    a second layer having a second index of refraction different from the first index of refraction, wherein the second layer has a first curvature and a second curvature, wherein the second curvature of the second layer provides a progression of optical power and is in optical communication with the second curvature of the first layer for providing a combined optical power for correcting near distance vision.

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