Method and apparatus for combining light sources
US8842369B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | Sep 23, 2014 |
| Priority date | — |
| Expiry date | May 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/145
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for combining light from multiple laser sources has a first laser array to emit beams of a first wavelength in parallel and in a first plane and a second laser array to emit beams of a second wavelength in parallel with emitted beams in the first laser array. A beam combiner on a transparent body has a rear surface and an incident surface at an oblique angle to the first plane. Intersection of the incident surface with the first plane is oblique to the emitted beams. The beam combiner has a first coating on the incident surface that intersects the first plane and transmits the first wavelength. A rear reflective coating reflects first and second wavelengths. A second coating on the incident surface is coplanar with the first coating and transmits the second wavelength and reflects the first wavelength. A third coating reflects first and second wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.