Light emitting device with photonic crystal
US7498730B2 · kind B2 · utility
3Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Mar 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K7/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting device comprises a light source in the form of an incandescent filament, a substantial part of which is integrated in a host element having at least one portion structured according to nanometric dimensions. The nano-structured portion is in the form of a photonic crystal or of a Bragg grating for the purpose of obtaining an amplified or increased emission of radiation in the region of the visible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.