公开(公告)号：US20230201960A1

公开(公告)日：2023-06-29

申请号：US17672967

申请日：2022-02-16

Applicant: Industrial Technology Research Institute

Inventor： PIN-HAO HU ,  FU-LUNG CHOU ,  YU-CHUNG LIN ,  MIN-KAI LEE

IPC: B23K26/06 ,  B23K26/082 ,  B23K26/073 ,  B23K26/382

CPC classification number: B23K26/0648 ,  B23K26/082 ,  B23K26/073 ,  B23K26/382

Abstract: A method for generating Bessel beams includes the steps of: utilizing a light source to generate an incident beam to a phase modulation module; utilizing the phase modulation module to rectify the incident beam into a circular beam, and to modulate a phase of the circular beam into an asymmetric phase so as to form an asymmetric collimated circular beam provided to a scanning module; utilizing the scanning module to compensate the asymmetric collimated circular beam, and utilizing the asymmetric collimated circular beam to scan at different angles and then enter a focusing element; and, utilizing the focusing element to focus and interfere the asymmetric collimated circular beam into form a Bessel beam for machining.

公开(公告)号：US20220212283A1

公开(公告)日：2022-07-07

申请号：US17477008

申请日：2021-09-16

Applicant: Industrial Technology Research Institute

Inventor： FU-LUNG CHOU ,  PIN-HAO HU ,  HUI-TA CHENG ,  CHING-NAN KUO

IPC: B23K26/046 ,  B23K26/70 ,  B23K26/064 ,  B23K26/067 ,  G02F1/29

Abstract: An adjustment method of laser light path includes the steps of: having a laser light path to penetrate through a measuring device to obtain at least two laser focal positions of the laser light path, the at least two laser focal positions forming an arc path; applying a focal position-calculating device to calculate coordinate values of the at least two laser focal positions; based on the arc path and the coordinate values of the at least two laser focal positions to apply the focal position-calculating device to calculate a target laser focal position; and, based on the target laser focal position to apply a light modulator to adjust each of the at least two laser focal positions to the target laser focal position. In addition, an adjustment device of laser light path is also provided.