Edge-lit lighting product
US8469559B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Jun 25, 2013 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0033
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An edge-lit lighting product or luminaire includes a light guide made of a single, transparent material and demonstrates properties of total internal reflection with respect to a surrounding environment. The light guide has a thickness and includes a proximal edge, a distal edge and a boundary surface. The proximal edge receives light from a light source. The distal edge is spaced apart from the proximal edge, is configured to emit at least a portion of the light from the light source, spans across a first distance and has a substantially axial symmetric surface. The first distance is greater than the thickness of the light guide. The boundary surface extends between the proximal edge and the distal edge and defines a boundary between the single, transparent material of the light guide and the surrounding environment of the light guide. At least a portion of the boundary surface is curved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.