Luminaire of reduced noise with magnetic field cancelled
US5606223A · kind A · utility
4Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1994 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Jun 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A luminaire includes a lamp connected at one electrode to an ordinary current loop and at the other electrode to the other current loop which is branched into more than two which are extending along two opposite sides of the lamp. Magnetic fields produced thus in the branched loops act to cancel each other, and any noise occurring due to generation of the magnetic field can be remarkably reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.