Laser processing head with an aperture for enlarging the scanning field of the laser beam

By introducing aperture into the laser processing head and limiting the cross-sectional area of ​​the laser beam, the problem of limited scanning field of the laser beam is solved, and a larger scanning field and higher processing efficiency is achieved.

CN114799491BActive Publication Date: 2025-03-28PRECITEC GMBH
3 Cites 0 Cited by

Patent Information

Application Number
CN202210092521.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2021-01-28
Filing Date
2022-01-26
Publication Date
2025-03-28
Estimated Expiration
2042-01-26

AI Technical Summary

Technical Problem

In existing laser processing equipment, the scanning field of the laser beam is limited by the edge impact and vignetting of the optical element, resulting in the maximum available scanning field being limited, affecting the processing efficiency and the life of the optical element.

Method used

By introducing an aperture into the laser processing head, the cross-sectional area of ​​the laser beam is limited, thereby reducing the diameter of the laser beam and increasing the scanning field. The aperture can be positioned between the laser entry module and the focus module, blocking the edge portion of the laser beam through the aperture body, allowing for a larger scanning angle.

Benefits of technology

The scanning field of the laser beam is achieved, which reduces the edge impact and vignetting of the optical element, extends the life of the optical element, and improves the processing efficiency.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention provides a laser processing head (1). The laser processing head comprises a laser entry module (40) for introducing a laser beam (9); a collimation module (44) for collimating the laser beam; a scanning module (46) for deflecting the laser beam; a focusing module (50) for focusing the laser beam; and at least one aperture (100) for limiting the diameter or cross-sectional area of ​​the laser beam passing through the aperture to increase the scanning field of the laser beam. The aperture comprises an aperture body (104) and an opening (102), and is configured to limit the cross-sectional area of ​​the laser beam through the aperture body. At least one aperture is located optically downstream of the laser entry module and optically upstream of the focusing module. The present invention also provides a laser processing system (2) comprising the laser processing head. In addition, a method for increasing the scanning field of a laser beam is also provided.
Need to check novelty before this filing date? Find Prior Art