Control system for microwave powered ultraviolet light sources
US6693382B2 · kind B2 · utility
12Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | May 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/3922
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In microwave energized ultraviolet bulbs, much of the input energy is converted to heat emissions. It has been found that the efficiency of such a bulb can be optimized by monitoring power density of different portions of the UV spectrum (for example, UVA and UVC) and adjusting input power to the bulb and/or the bulbs temperature accordingly. This may be used not only to improve efficiency of the bulb but also to improve the efficiency of emissions at either UVA or UVC. A control system and suitable control parameters are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.