Laser processing machine
US10413996B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2016 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Dec 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1618
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser processing machine includes a convex lens having a positive focal length, a concave lens having a negative focal length, and a focusing lens having a positive focal length. The convex lens is movable in an optical axis direction and converts divergent light of a laser beam emitted from a laser beam emission end into convergent light. The concave lens is movable in the optical axis direction and is disposed at a position that is shifted from a position where the convergent light is focused toward the convex lens side by the same distance as the focal length of the concave lens according to a position of the convex lens in the optical axis direction. The concave lens converts the convergent light into parallel light. The focusing lens focuses the laser beam emitted from the concave lens and irradiates a plate material with the focused laser beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.