Moving light spots in illumination fibers
US7708441B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2008 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Jan 30, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S10/005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic display includes a light source system and a light guide system, where the light guide system emits light features laterally, i.e., from the side, at selected positions along its length. The light source system includes one or more electronically controllable light sources and further includes optical switches or other arrangements for coupling the light sources to the optical fibers or other light guides of the light guide system. The light source system can sequentially or progressively increase the selected longitudinal position at which the light feature is emitted, resulting in the appearance of movement of the light feature along the length of the light guide system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.