Radio frequency interference reduction arrangements for electrodeless discharge lamps
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United States of America Patent
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Mar 14, 1995
Grant Date -
N/A
app pub date -
May 20, 1992
filing date -
May 20, 1992
priority date (Note) -
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Abstract
A cost-efficient electrically conductive screen and shield for substantially shielding radio frequency electromagnetic radiation emitted beyond the discharge vessel and the electronic circuitry of an electrodeless discharge lamp is disclosed. The conductive screen and/or shield is disposed outside the space occupied by the gaseous mixture and is grounded to the power supply. This shielding reduces the emission of electromagnetic radiation and, in particular, enables the discharge lamp to comply with FCC standards imposed with respect to the maximum admissible level of interference with wireless communication equipment such as radios and televisions.
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