ELECTRODELESS PLASMA LAMP UTILIZING ACOUSTIC MODULATION
First Claim
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1. An electrodeless plasma lamp comprising:
- a metal enclosure having a conductive boundary forming a resonant structure;
a radio frequency (RF) feed to couple RF power from an RF power source into the resonant cavity;
a bulb containing a fill that forms a light emitting plasma when the power is coupled to the fill, the bulb being received at least partially within an opening in the metal enclosure; and
a controller to modulate the RF power to induce acoustic resonance in the plasma.
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Abstract
An electrodeless plasma lamp is described that employs acoustic resonance. The plasma lamp includes a metal enclosure having a conductive boundary forming a resonant structure, and a radio frequency (RF) feed to couple RF power from an RF power source into the resonant cavity. A bulb is received at least partially within an opening in the metal enclosure. The bulb contains a fill that forms a light emitting plasma when the power is coupled to the fill. The RF power source includes a controller to modulate the RF power to induce acoustic resonance in the plasma.
30 Citations
25 Claims
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1. An electrodeless plasma lamp comprising:
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a metal enclosure having a conductive boundary forming a resonant structure; a radio frequency (RF) feed to couple RF power from an RF power source into the resonant cavity; a bulb containing a fill that forms a light emitting plasma when the power is coupled to the fill, the bulb being received at least partially within an opening in the metal enclosure; and a controller to modulate the RF power to induce acoustic resonance in the plasma. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of powering a plasma lamp, the method comprising:
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generating RF power at resonant frequency for a resonant structure, wherein the RF power is modulated at a modulation frequency; coupling the power into the resonant structure, the resonant structure including a metal enclosure having a conductive boundary; coupling the power from the resonant structure to a bulb containing a fill that forms a light emitting plasma when the power is coupled to the fill, the bulb being received at least partially within an opening in the metal enclosure; and causing acoustic resonance in the plasma induced by the modulation. - View Dependent Claims (24, 25)
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Specification