Light emitting devices including multiple anodes and cathodes
US9515055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Apr 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Solid state (e.g., LED) lighting devices include multiple emitters mounted on or over a substrate comprising insulating material with conductive traces thereon, with various emitters being independently controllable with multiple pairs of anodes and cathodes that may be arranged on an opposite surface of the substrate than the emitters. Electrically conductive vias may be defined through the insulating substrate, and a molded lens may be provided over the substrate and emitters mounted thereon. Various combinations of independently controllable emitters or emitter groups may be provided, for example, a red emitter in combination with multiple blue shifted yellow (BSY) emitters, or separately controllable red, green, blue, and white (e.g., BSY) emitters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.