Electroluminescent light source with a mixture layer filled with a transparent filler substance
US5869930A · kind A · utility
45Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1996 |
| Grant date | Feb 9, 1999 |
| Priority date | — |
| Expiry date | Oct 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a light source consisting of at least one flexible, cable-like electroluminescent filament, each filament having a central electrode (2) surrounded by an electrically insulating dielectric layer (4), and a layer (6) consisting of a mixture of an electroluminophor powder and a binder. The mixture is applied to the dielectric layer (4). The light source also includes a transparent electrode (8) surrounding the mixture layer (6). Pores formed in the mixture layer (6) are filled in by a transparent filler substance. A method for preparing the light source is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.