LIGHTGUIDE DEVICE WITH OUTCOUPLING STRUCTURES

摘要

A lightguide assembly including structures to provide for outcoupling of light from an internal reflection structure. In an embodiment, a lightguide assembly includes light transmissive bodies forming respective corrugations which are coupled to one another. Optical coatings are variously disposed between the respective corrugations, wherein the optical coatings provide for redirection of light from the lightguide assembly. In another embodiment, optical coatings are each applied to a respective one of alternate facets of a corrugation. Polymer film portions provide mechanical support for the optical coatings during application to the corrugation.

主权项

1. A lightguide assembly comprising:
a first body including a first light transmissive material which forms a first corrugation comprising a first plurality of facets; a second body including a second light transmissive material which forms a second corrugation coupled to the first corrugation; and a plurality of optical coatings disposed between the first corrugation and the second corrugation, wherein for each optical coating of the plurality of optical coatings:
the optical coating extends across a surface of a respective one of the first plurality of facets, wherein, within a cross-section of the lightguide assembly, the optical coating is separated from another of the plurality of optical coatings;wherein the lightguide assembly includes a first surface and a second surface opposing the first surface, the lightguide assembly to receive first light, wherein the first light propagates along a first optical path disposed at least partially between the first surface and the second surface, wherein the first surface to receive and reflect the first light to the second surface, wherein the plurality of optical coatings to pass the first light out of the lightguide assembly through the second surface.