PROCESS FOR MAKING LIGHT GUIDES WITH EXTRACTION STRUCTURES AND LIGHT GUIDES PRODUCED THEREBY

摘要

A process comprises imagewise exposing at least a portion of a photoreactive 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 the composition is exposed to the light, the imagewise exposing being carried out in a pattern that is effective to define at least the surface of a plurality of light extraction structures.