Electrodeless single low power CW laser driven plasma lamp
US10057973B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2017 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jan 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/7005
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An ignition facilitated electrodeless sealed high intensity illumination device is configured to receive a laser beam from a continuous wave (CW) laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber has an ingress window disposed within a wall of a chamber interior surface configured to admit the laser beam into the chamber, a plasma sustaining region, and a high intensity light egress window configured to emit high intensity light from the chamber. The CW laser beam is producible by a CW laser below 250 Watts configured to produce a wavelength below 1100 nm. The device is configured to focus the laser beam to a full width at half maximum (FWHM) beam waist of 1-15 microns2 and a Rayleigh length of 6 microns or less, and the plasma is configured to be ignited by the CW laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.