Laser scanning module and laser marking machine
By employing a laser scanning module with a freeform surface field lens and a glass collimating lens group, combined with a galvanometer and translation mechanism, the speed and cost issues of existing laser marking machines have been resolved, achieving high-precision, large-area laser processing and improved stability.
CN224543466UActive Publication Date: 2026-07-24NINGBO XIANGXIN INFORMATION TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202521818574.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
- Estimated Expiration
- 2035-08-26
AI Technical Summary
Technical Problem
Existing laser marking machines with single-point light sources have slow marking speeds, while dual-mirror light sources are costly and the lenses are prone to deformation, affecting marking quality.
Method used
It employs a freeform field lens and a collimating lens group made of glass, combined with a galvanometer to achieve high-speed deflection and beam uniformity. The laser scanning module is moved as a whole through a translation mechanism and integrated onto the same base.
Benefits of technology
It improves laser processing precision and imaging quality, expands the scanning range, reduces maintenance frequency and cost, and enhances production efficiency and equipment reliability.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model provides a laser scanning module and a laser marking machine, and belongs to the technical field of laser marking. The incident plane of the galvanometer is aligned with the output end of the laser transmitter; the incident plane of the free-form surface field lens is aligned with the emergent plane of the galvanometer; the laser emitter can emit laser towards the galvanometer, and the laser is reflected to the free-form surface field lens through the galvanometer and is scanned through the free-form surface field lens, so that the uniformity of scanned light spots is ensured. The beneficial effects of the utility model are that the free-form surface field lens is adopted to replace a traditional field lens composed of a plurality of spherical or aspherical lens groups, aberration can be more effectively corrected, flatness and imaging quality of a scanning field can be significantly improved, high-speed deflection can be realized in cooperation with a galvanometer, and the imaging quality can be improved. The focusing spot size of the laser at different scanning positions is ensured to be consistent, the energy distribution is uniform, the laser processing precision is improved, and the method is particularly suitable for high-resolution and large-area laser processing scenes.
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