Surface light source apparatus with dual-side emitting light
US8692450B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2011 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Sep 5, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133625
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surface light source apparatus with dual-side emitting light includes at least a cathode wire structure, a transparent anode structure, a fluorescent layer and a low-pressure gas layer. The transparent anode structure is a surface structure, wherein the cathode wire structure and the transparent anode structure are parallel to each other. The fluorescent layer is located between the cathode wire structure and the transparent anode structure. The low-pressure gas layer fills the space between the cathode wire structure and the transparent anode structure and functions to induce the cathode evenly emitting electrons. The electron mean free path of the low-pressure gas layer allows at least a sufficient number of electrons to directly impact the fluorescent layer under an operation voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.