Industry Patents

Patent: 7372209

Microwave Energized Plasma Lamp With Dielectric Waveguide

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Patent Number: 7372209 
Title: Microwave Energized Plasma Lamp With Dielectric Waveguide 
Abstract: A plasma lamp including a waveguide body including at least one dielectric material with a dielectric constant greater than approximately 2. The body is coupled to a microwave source which causes the body to resonate in at least one resonant mode. At least one lamp chamber integrated with the body contains a bulb with a fill forming a light-emitting plasma when the chamber receives power from the resonating body. A bulb either is self-enclosed or an envelope sealed by a window or lens covering the chamber aperture. Embodiments disclosed include lamps having a drive probe and a feedback probe, and lamps having a drive probe, feedback probe and start probe, which minimize power reflected from the body back to the source both before each plasma is formed and after it reaches steady state.  
Country of Issue: US 
First Named Inventor: Espiau, Chang 
Assignee: Luxim 
Continuation or Divisional of: 6922021 
International Classification: H01J 7/46 
US Classification: 315/39 
Issue Date: 05-13-2008 
Filing Date: 12-11-2004 
Application : 11/010093 
Notes:  
Link to Patent at freepatentsonline.com: 7372209 at Freepatentsonline 
Link to World Patent Family1: World Patent Family at European Patent Office 
Link to Google Patents1: 7372209 at Google Patents 

 

1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.

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