Electrodeless lamp and lamp bulb therefor
US6803724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2002 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Oct 3, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bulb for an electrodeless lamp comprises: an envelope through which the light can be permeated; a filled material filled in the envelope for emitting the light as being excited by high frequency energy; and buffer gas, wherein the buffer gas comprises first buffer gas, and second buffer gas having a partial pressure less than 1% of the partial pressure of the first buffer gas in order to reduce a discharging voltage and lighting time, and thereby, the re-lighting after putting out the light can be performed easily and the re-lighting time is reduced to improve the convenience of the user and the reliability of electrodeless lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.