Title:
MICROWAVE ENERGIZED PLASMA LAMP WITH DIELECTRIC WAVEGUIDE
Document Type and Number:
WIPO Patent Application WO2004070762
Kind Code:
A3
Abstract:
A plasma lamp (140A, 140B) including a waveguide body (104) consisting essentially of at least one solid dielectric material. The body (104) is coupled to a microwave source (115) causing the body (104) to resonate in at least one resonant mode. At least one lamp chamber (105) 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 (107) either is self-enclosed or an envelope (127) sealed by a window (111) or lens covering the chamber aperture. Power reflected from the body (104) back to the source (115) is minimized when the source (115) operates: (a) at a frequency such that the body (104) resonates in a single mode; or (b) at one frequency such that the body (104) resonates in a relatively higher order mode before a plasma is formed, and at another frequency such that the body (104) resonates in a relatively lower order mode after it reaches steady state.
Inventors:
ESPIAU FREDERICK M
CHANG YIAN
CHANG YIAN
Application Number:
PCT/US2004/002532
Publication Date:
September 09, 2005
Filing Date:
January 29, 2004
Export Citation:
Assignee:
LUXIM CORP (US)
International Classes:
H01J1/00; H01J7/46; H05B41/24; H01J61/02; H01J61/12; H01J61/30; H01J61/52; H01J61/56; H01J65/04; H01P3/16; H05B37/00; H05B41/16; H05B41/26; H01J; (IPC1-7): H01J65/04; H01J61/56; H05B41/26
Domestic Patent References:
| WO2001001448A1 | 2001-01-04 |
Foreign References:
| US20020011802A1 | 2002-01-31 |
Other References:
See also references of EP 1588394A2
Download PDF:
Previous Patent: METHOD AND APPARATUS FOR IMPROVED FASTENING HARDWARE
Next Patent: ION TRAP MASS SPECTROMETRY
Next Patent: ION TRAP MASS SPECTROMETRY