Patent ID: 8317505
Filing Date: 2012-11-27
Classification: B28B,B29C,B29D,B33Y,G02C,G03F

Abstract:
1. An apparatus for forming an ophthalmic Lens Precursor, the apparatus comprising: a lens precursor forming substrate comprising a convex optical quality surface; and, wherein the convex optical quality surface is positioned into a vessel, wherein the vessel contains a volume of a Reactive Mixture that exceeds the volume of the formed Lens Precursor and the shape of the vessel does not influence the shape of the lens precursor; a source of actinic radiation controllable to cure one or more voxels of said single volume of Reactive Mixture, said source of actinic radiation comprising a light beam source and a digital mirror device; and said digital mirror device capable of dividing a light beam into multiple pixels of light, wherein discrete pixels may be directed to an ON path and an OFF path, wherein the ON path is directed through the optical quality convex surface in a predefined pattern on a voxel by voxel basis wherein a duration of respective ON path directions of the light beam on a voxel by voxel basis is controllable to control a depth of polymerization of respective Voxels.