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US 7,348,732 B2Granted
Plasma lamp with dielectric waveguide
AssigneeLuxim Corporation
InventorsFrederick M. Espiau, Chandrashekhar J. Joshi, Yian Chang
Life of this patent
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Abstract
A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one resonant mode when microwave energy of an appropriate frequency is coupled into the body. A bulb positioned in at least one lamp chamber in the body contains a gas-fill which when receiving energy from the resonating body forms a light-emitting plasma.
Claims24
A plasma lamp, comprising:
- a solid body of dielectric material with a dielectric constant greater than 2 and having at least a main part with a first surface and a second surface opposed to the first surface;
- a feed inserted through the first surface into the main part of the solid body and configured to provide radio frequency energy to the solid body;
- and
- a protruding portion of solid dielectric material surrounding a bulb, the bulb enclosing a gas fill positioned to receive the radio frequency energy from the solid dielectric body,
- the second surface coated with an electrically conductive material, and
- at least a portion of the bulb enclosing the gas fill positioned above the main part of the solid body adjacent to the second surface.
3 more elements
Dependencies are inferred from the claim text.