Offline adjusting device and method for adjusting light spot position offset

By using an offline adjustment device and method, the light source is pre-calibrated as the reference for the whole machine, and the optical components are calibrated step by step. This solves the problems of strong coupling between the light source and the optical components and lack of reference, and improves the accuracy and efficiency of the light spot position adjustment.

CN121679998APending Publication Date: 2026-03-17SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202511914548.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-18
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing spot position adjustment technology, the light source and optical components are highly coupled, lack a unified benchmark, and the debugging process is repetitive and relies on experience, resulting in low efficiency.

Method used

An offline adjustment device and method are adopted. The light source is pre-adjusted by the offline detection device as the whole machine debugging benchmark. The light source and optical adjustment components are calibrated step by step to establish an "ideal light source" assembly, providing a high-precision benchmark and gradually transferring it to the whole machine.

Benefits of technology

It improves the accuracy and efficiency of spot position adjustment, reduces reliance on operators, has strong logic, and reduces confusion and repetitive operations during overall machine debugging.

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Abstract

The invention discloses an off-line adjusting device and method for light spot position offset adjustment, and belongs to the technical field of optical precision adjustment. The device comprises a single-beam light-emitting direction adjusting device, a single-beam light-emitting position adjusting device and a multi-beam angle adjusting device which can be formed on the same off-line platform by configuring different detection units. The method comprises the following steps of: calibrating a light source by using the devices in sequence, and constructing an ideal light source assembly with accurate direction, accurate position and multi-beam parallelism; the whole device is installed to a complete machine system to serve as an absolute reference, and a complete machine optical element is adjusted to make a light spot reach a preset position; and finally, replacing with a customized light source and carrying out fine adjustment by taking the calibrated optical element as a reference. According to the method, decoupling of light source calibration and optical element calibration is achieved through the process of establishing the benchmark offline, transmitting the benchmark through the whole machine and customizing light source adaptation, the installation and adjustment precision, efficiency and repeatability are remarkably improved, and dependence on operation experience is reduced.
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