LIGHT EXTRACTING ELEMENT HAVING SERPENTINE SHAPE, LIGHT REDIRECTING ELEMENT HAVING SERPENTINE SHAPE, AND LIGHTING ASSEMBLY INCLUDING THE SAME

摘要

A light guide includes opposed major surfaces, a light input edge extending therebetween, and light extracting elements at at least one of the major surfaces. At least a portion of the light extracting elements includes: a longitudinal axis extending between a first end and a second end of the light extracting element; a first side surface and a second side surface each extending from the major surface; and a ridge or end surface connecting the first side surface and the second side surface, the ridge or end surface extending along the longitudinal axis in a non-linear, winding path as viewed from a direction orthogonal to the major surface. In some embodiments, a cover element includes light redirecting elements having a ridge or end surface extending along a longitudinal axis of the element in a non-linear, winding path as viewed from a direction orthogonal to the major surface.

主权项

1. A light guide, comprising:
a first major surface; a second major surface opposed the first major surface; a light input edge extending between the first major surface and the second major surface, the first major surface and the second major surface configured to propagate light input to the light guide through the light input edge therebetween by total internal reflection; and light extracting elements at at least one of the major surfaces, at least a portion of the light extracting elements comprising:
a longitudinal axis extending between a first end and a second end of the light extracting element;a first side surface and a second side surface each extending from the major surface of the light guide at which the light extracting element is formed; anda ridge or end surface connecting the first side surface and the second side surface, the ridge or end surface extending along the longitudinal axis in a non-linear, winding path as viewed from a direction orthogonal to the major surface of the light guide at which the light extracting element is formed.