Process to make nano-structured emitters for incandescence light sources
US7322871B2 · kind B2 · utility
11Cited by
6References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2003 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Dec 23, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K3/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a process to make an emitter (10) for light sources, which can be led to incandescence through the passage of electric current, a layer made of anodized porous alumina (1) is used as sacrificial element for the structuring of at least a part of the emitter (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.