Apparatus for formation of an ophthalmic lens precursor and lens

摘要

This invention discloses apparatus for generating an ophthalmic lens with at least a portion of one surface free-formed from a Reactive Mixture. In some embodiments, an ophthalmic lens is formed on a substrate with an arcuate optical quality surface via a source of actinic radiation controllable to cure a definable portion of a volume of Reactive Mixture.

主权项

1. A method for forming a contact lens comprising:
creating a non-fluent first portion of the contact lens having a predetermined shape defined by a first concave, optical quality surface adapted to be placed against a patient's eye and an opposing second surface; providing a layer of Fluent Lens Reactive Media adjacent to and substantially covering the second surface of the first portion; causing the Fluent Lens Reactive Media to flow under the force of gravity so that surface tension on an exposed surface thereof is reduced to thereby form a second convex optical quality surface; further processing said Fluent Lens Reactive Media to thereby fix said Fluent Lens Reactive Media and second optical quality surface; wherein the shape of the contact lens is defined by the optical quality concave first surface and the fixed second convex optical quality surface.