PLASMA LAMP
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United States of America Patent
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Issued Date -
Nov 11, 2010
app pub date -
Apr 27, 2010
filing date -
Apr 28, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A plasma lamp having a lamp bulb (1) which contains a material which is suitable for plasma formation with microwave excitation radiation, having a supply line (9) for supplying the microwave excitation radiation to the lamp bulb (1) and having a reflector (11), which at least partially surrounds the lamp bulb (1), for directing the light which is emitted from the plasma in the lamp bulb (1), wherein the lamp bulb (1) is arranged within a microwave resonator (5) such that a high microwave field strength is achieved in the area of the lamp bulb (1), and wherein the microwave resonator (5) has metallic walls (6, 4, 7), at least one wall section (7) of which is designed to be light-transmissive with an electrically conductive shielding structure, allows a compact design and an improved light yield in that the reflector (11) is arranged within the microwave resonator (5), and in that the microwave resonator (5), together with the reflector (11), is matched to optimum energy introduction into the lamp bulb (1).
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