Phosphor converting IR LEDs
US8426871B2 · kind B2 · utility
8Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2010 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Jul 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/84
Abstract
The production of light of various wavelengths using IR phosphor down conversion techniques using existing LED emissions to pump sensitizer-rare earth ions that emit at other wavelengths. A sensitizer absorbs an LED chip pump emission and then transfers that energy with high quantum efficiency to dopant ions that then emits at their characteristic wavelength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.