Laser processing device
US12383984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Aug 12, 2025 |
| Priority date | — |
| Expiry date | Mar 28, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/56
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser processing device configured to emit laser light on an object to perform laser processing of the object, the laser processing device including: a laser output unit configured to output the laser light; a spatial light modulator configured to reflect the laser light output from the laser output unit while modulating the laser light in accordance with a phase pattern; and an objective lens configured to converge the laser light from the spatial light modulator toward the object, in which the spatial light modulator includes an entrance surface, a reflective surface, and a modulation layer configured to display the phase pattern to modulate the laser light, and a dielectric multilayer film having a high reflectance region in a plurality of wavelength bands non-contiguous with each other is formed on the reflective surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.