Patent ID: 8004767
Filing Date: 2011-08-23
Classification: B29D,G02B

Abstract:
1. A process comprising (a) providing a photoreactive composition, said photoreactive composition comprising: (b) imagewise exposing at least a portion of said composition to light sufficient to cause simultaneous absorption of at least two photons, thereby inducing at least one acid- or radical-initiated chemical reaction where said composition is exposed to the light, said imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of microlenses comprising at least one aspherical microlens, each said microlens having a principal axis and a focal length, and at least one of said principal axis and said focal length of at least one said microlens being different from that of at least one other said microlens; and (c) developing said composition by removing at least a portion of the resulting non-exposed portion of said composition.