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US 12,665,370 B2Granted
3D laser device for ultrashort pulses
AssigneeTRUMPF Schweiz AG
InventorsStefan Marzenell, Stefan Knupfer, Christoph Weinert, Thorsten Ulm
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Abstract
A laser device includes a laser module for generating a laser beam of sub-nanosecond laser pulses with a laser source, and arranged downstream of the laser module in a beam path of the laser beam, a deviating instrument for variable deviation of the laser beam in two spatial directions. The laser device further includes a focusing instrument for variable displacement of a focal point of the laser beam in a third spatial direction that corresponds to a propagation direction of the laser pulses.
Claims10
A laser device, comprising:
- a laser module for generating a laser beam of sub-nanosecond laser pulses with a laser source,
- arranged downstream of the laser module in a beam path of the laser beam, a deviating instrument for variable deviation of the laser beam in two spatial directions, and
- a focusing instrument for variable displacement of a focal point of the laser beam in a third spatial direction that corresponds to a propagation direction of the laser pulses, wherein the focusing instrument comprises a first lens, a second lens, and a third lens disposed sequentially along the beam path, the first lens being a focus displacing lens and disposed upstream from the deviating instrument, the second lens being a collimating lens and disposed upstream from the deviating instrument, and the third lens being a focusing lens and disposed downstream from the deviating instrument.
Dependencies are inferred from the claim text.