Resonator for microwave lighting apparatus and manufacturing method thereof
US6617793B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2001 |
| Grant date | Sep 9, 2003 |
| Priority date | — |
| Expiry date | Nov 13, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J65/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A resonator for use in microwave lighting apparatus includes a mesh portion formed in a cylindrical shape with one side opened, at least one portion of which prevents microwave transmitted through a waveguide from leaking and light radiated from a light bulb is transmitted outwardly, the mesh portion being formed integral without a joint. Since the portion of the mesh structure is integrally formed as one body without a joint rather than being welded to be coupled, the microwave is prevented from leaking. In addition, since the holes of the mesh portion are uniformly formed without any clogged portion, the light transmittance area is enlarged, improving the light efficiency of the lighting apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.