System and apparatus for cathodoluminescent lighting
US8330376B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2012 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Jan 14, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J63/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathodoluminescent lighting system has a light emitting device having an envelope with a transparent face, a cathode for emitting electrons, an anode with a phosphor layer and a conductor layer. The phosphor layer emits light through the transparent face of the envelope. The system also has a power supply for providing at least five thousand volts of power to the light emitting device, and the electrons transiting from cathode to anode are essentially unfocused. Additional embodiments responsive to triac-type dimmers with intensity and color-changes in response to dimmer control. A power-factor-corrected embodiment is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.