Industry Patents
Patent: 8319439
Electrodeless Plasma Lamp and Drive Circuit
(Click image for PDF of full patent)
| Patent Number: |
8319439 |
| Title: |
Electrodeless Plasma Lamp and Drive Circuit |
| Abstract: |
An electrodeless plasma lamp and a method of controlling operation of a
plasma lamp are provided. The plasma lamp may a power source to provide
radio frequency (RF) power and a lamp body to receive the RF power from a
feed. The lamp body may comprise a dielectric material having a
dielectric constant greater than 2 and bulb is provided that contains a
fill that forms a plasma that emits light when at least a portion of the
RF power is coupled to the fill. A light guide directs light from the
bulb to a photosensor that is shielded from light output from a front
side of the lamp body. The lamp includes a drive circuit to control
operation of the lamp based on a level of light detected by the
photosensor.
|
| Country of Issue: |
US |
| First Named Inventor: |
Hollingsworth, DeVincentis, McGettigan, Mudunuri, Murthy, O'Hare |
| Assignee: |
Luxim |
| Continuation or Divisional of: |
|
| International Classification: |
H05B 37/02 |
| US Classification: |
315/149 |
| Issue Date: |
11-27-2012 |
| Filing Date: |
09-18-2009 |
| Application : |
12/562630 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
8319439 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
8319439 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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