Switchable laser and fiber based lamphouse for optimal power output in different wavelength bands and pixel sizes
US9341761B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jul 24, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for providing laser sustained plasma light sources are disclosed. Different from conventional laser sustained plasma light sources where one fiber size and one wavelength combination is used in the lamphouse to generate light for different bands and pixel sizes, switchable fiber sizes and wavelength combinations are provided for optimal power output in different wavelength bands and pixel sizes. More specifically, switchable fiber configurations are provided where larger fibers with higher pump powers are used for bigger pixel sizes and higher wavelength bands while smaller fibers are used for smaller pixel size and shorter wavelength bands. Additionally and/or alternatively, pumping schemes are provided where pump wavelengths close to the absorption peak of the gas fill are used for bigger pixel sizes while pump wavelengths away from the gas fill absorption peak are used for smaller pixel sizes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.