Optical cover employing microstructured surfaces
DCFirst Claim
Patent Images
1. An optical cover, comprising:
- a generally planar layer of optically transparent material having at least one broad corrugated surface, said corrugated surface including highly transparent optical windows distributed according to a predetermined pattern and configured for communicating light to or from said layer;
wherein the corrugations of said corrugated surface are aligned parallel to a reference line and configured to retroreflect at least some light propagating in said layer by means of a total internal reflection.
1 Assignment
Litigations
0 Petitions
Accused Products
Abstract
A light trapping optical cover employing an optically transparent layer is described. The transparent layer has at least one corrugated surface formed by a plurality of isosceles right-angle prismatic corrugations configured to internally retroreflect light into the transparent layer. The corrugated surface also includes optical windows configured for inputting or outputting light to or from the transparent layer. The optical cover may further employ a focusing array of light collectors being pairwise associated with the respective optical windows.
14 Citations
19 Claims
-
1. An optical cover, comprising:
a generally planar layer of optically transparent material having at least one broad corrugated surface, said corrugated surface including highly transparent optical windows distributed according to a predetermined pattern and configured for communicating light to or from said layer; wherein the corrugations of said corrugated surface are aligned parallel to a reference line and configured to retroreflect at least some light propagating in said layer by means of a total internal reflection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
19. An optical article, comprising:
-
a layer of optically transparent material having at least one broad corrugated surface, said corrugated surface being formed by right-angle isosceles corrugations having retroreflective properties at least in one plane; wherein said corrugations include one or more openings configured for unimpeded communication of light into or from said layer.
-
Specification