Light emitting device
US5920086A · kind A · utility
11Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1997 |
| Grant date | Jul 6, 1999 |
| Priority date | — |
| Expiry date | Nov 19, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/822
Abstract
A device for generating radiant energy comprising a first electrode, a second electrode spaced apart from said first electrode, a material disposed between and in electrical communication with first and second electrodes, which emits radiant energy upon activation. This material is a rare earth metal oxide or a rare earth metal halide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.