Electrodeless lighting system and bulb therefor
US6744221B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2002 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrodeless lighting system, including a waveguide having an outlet which is installed being protruded from the inside of a casing to the outside of the casing, for transmitting a microwave generated in the magnetron, a resonator fixed at the outer side of the outlet of the waveguide, for forming a resonant region in which the microwave is resonated, a bulb for generating light as plasma is generated by an electric field which is formed inside the resonator and a lighting promoting means positioned inside the bulb, for concentrating the electric field so that light is rapidly emitted when the microwave is applied, can achieve convenience of a user and increase reliability of lighting as the bulb rapidly emits light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.