Corning Incorporated
LIGHT APPARATUS COMPRISING A LIGHT GUIDE PLATE WITH GROOVES AND METHODS FOR USING THE SAME TO DIRECT LIGHT

Abstract:

A light apparatus can comprise a light source and a light guide plate, which can further comprise a major surface comprising a plurality of grooves. Each groove of the plurality of grooves may comprise a first surface and an opposed second surface. Each groove can have a maximum depth that may be defined between the second major surface and abase of the corresponding groove. In some embodiments, one or more surfaces of each groove may comprise a first convex portion. In other embodiments, the maximum depth of each groove of the plurality of grooves can be from about 1 micrometer to about 50 micrometers. In still other embodiments, the light apparatus may be used to direct light out of the light guide plate with a peak radiance oriented from 0.degree. to 30.degree. from a direction normal to the first major surface of the light guide plate.