Systems, devices and methods of broadband light sources with tunable spectrum
US8063409B2 · kind B2 · utility
1Cited by
8References
40Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2009 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Oct 24, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Broadband light source systems, devices, and methods with a tunable spectrum are described by multiplexing a plurality of light sources, such as LEDs, with thin-film filters or diffraction gratings. A plurality of light sources with different or same wavelengths are multiplexed together to construct a combined broadband light source. A diffraction grating diffracts light beams from the plurality of light sources to a slit-shaped aperture, depending on selected light sources, the relative positions of the light sources to the slit-shaped aperture, and the type of grating to produce a tunable spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.