Laser cutting machine
US5637243A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1994 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Sep 27, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/706
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser cutting machine having a cutting head that is positionable in X-, Y- and Z- directions and which comprises a laser oscillator for supplying a beam via a plurality of mirrors to the cutting head and onto a workpiece mounted on a flat table surface with rising rollers or a retractable rotatable support in the table. The locations and center-of-gravity positions of the machine components are disposed for optimum maneuverability and balance. The plurality of mirrors in the optical system have a first bend mirror, that is a precision-adjustable, circular-polarizing mirror, and a plurality of subsequent bend mirrors that are disposed to counterbalance any resulting phase shift amounts. The subsequent mirrors can be ES or PS coated mirrors and can be accompanied by convex, concave, collimating, etc. mirrors and lenses as needed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.