Title:
LIGHT APPARATUS COMPRISING A LIGHT GUIDE PLATE WITH GROOVES AND METHODS FOR USING THE SAME TO DIRECT LIGHT
Document Type and Number:
WIPO Patent Application WO/2020/050923
Kind Code:
A3
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 a base 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° to 30° from a direction normal to the first major surface of the light guide plate.
Inventors:
LI SHENPING (US)
Application Number:
PCT/US2019/044028
Publication Date:
September 03, 2020
Filing Date:
July 30, 2019
Export Citation:
Assignee:
CORNING INC (US)
International Classes:
F21V8/00
Domestic Patent References:
| WO2008038754A1 | 2008-04-03 |
Foreign References:
| US20160102834A1 | 2016-04-14 | |||
| US6132053A | 2000-10-17 | |||
| US20070189033A1 | 2007-08-16 |
Attorney, Agent or Firm:
ABLE, Kevin M. (US)
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