Displacing an optical lighting film's linear array of grooves to facilitate emission of light
US5363470A · kind A · utility
31Cited by
15References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Jul 8, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides an apparatus for transporting and distributing light. The apparatus comprises a longitudinal, hollow light conduit with a linear array of prisms arranged side-by-side to form grooves, the grooves disposed in a non-parallel orientation with respect to the longitudinal axis of the light conduit. The non-parallel orientation of the grooves causes some, or all, light which would otherwise be totally internally reflected within the light conduit to be emitted from the light conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.