Plasma lamp with dielectric waveguide

Patent 6737809 Issued on May 18, 2004. Estimated Expiration Date:

March 15, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3641389

3787705

3826950

3860854

Electrodeless light source having improved arc shaping capability
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Inventors

Assignee

Luxim Corporation

Application

No. 09809718 filed on 03/15/2001

US Classes:

315/39, Discharge device load with distributed parameter-type transmission line (e.g., wave-guide, coaxial cable)315/248, Induction-type discharge device load313/634, Envelope with particular structure313/636Envelope composition

Examiners

Primary: Vu, David

Attorney, Agent or Firm

Gray; Edward

Foreign Patent References

195 32 780 DE 03/01/1997
0 035 898 EP 09/01/1981

International Class

H05B 3700

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 a cavity within the body contains a gas-fill which when receiving energy from the resonating body forms a light-emitting plasma.