Multifocal ophthalmic lenses
OwnerLarry G. Jones, Timothy A. Clutterbuckinventors
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Abstract
The invention provides a lens with a refractive surface in which a spiral pattern is used to distribute the distance and near vision power on the lens' surface.
Claims14
An ophthalmic lens for a lens wearer, comprising a first refractive surface comprising an optic zone having an area of distance optical power, wherein interspersed within the area of distance optical power and in a substantially spiral pattern is an area of near optical power.
An ophthalmic lens for a lens wearer, comprising a first refractive surface comprising a first optic zone having an area of distance optical power and second refractive surface having an area of plano power in a second optical zone, wherein interspersed within the area of piano power and in a substantially spiral pattern is an area of near optical power.
Dependencies are inferred from the claim text.