Compact germicidal lamp having multiple wavelengths
US7173254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Jun 28, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/3227
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A compact germicidal lamp having a plurality of adjacent parallel glass cylinders capable of transmitting different wavelengths of ultraviolet radiation connected by a perpendicular glass tube. A first glass cylinder made of a doped quartz material and capable of transmitting ultraviolet radiation in the wavelength range of approximately 254 nanometers is positioned adjacent a second glass cylinder made of a quartz material capable of transmitting ultraviolet radiation in the wavelength range of approximately 185 nanometers. The first and second glass cylinders are connected by a perpendicular glass tube. The compact germicidal lamp, when used in a germicidal system, provides effective germicidal action in a small space. The germicidal lamp of the present invention is more easily manufactured than prior germicidal lamps and can be made having a high power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.