Method and apparatus for laser cutting
US9436012B2 · kind B2 · utility
1Cited by
19References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2013 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Apr 29, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method and system for laser cutting is disclosed. Using a novel dual-focus optical conversion unit. The dual-focus optical conversion unit may comprise a beam splitter and a convex mirror. The beam splitter may be insensitive to the polarization of an incident beam. The convex mirror may be placed beyond and parallel to the beam splitter, wherein the surface of the convex mirror may be coated with a reflective phase-retarder coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.