Laser processing machine
US10583525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2016 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Dec 13, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/38
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser processing machine includes a beam parameter product variable device, and a beam diameter variable device. The beam parameter product variable device sets beam parameter products of a laser beam to a predetermined value. The beam diameter variable device includes a first lens that is movable in an optical axis direction and having a positive focal length, and converts divergent light of a laser beam emitted from an emission end of the laser beam into convergent light, and a second lens that is movable in the optical axis direction and having a negative focal length on which the convergent light is incident. A third lens having a positive focal length, focuses the laser beam emitted from the beam diameter variable device, and irradiates a plate material with the focused laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.