Triangular optical measurement system

By using multiple light sources and spectroscopic elements in the optical detection system to split the light into incoherent light with different characteristics, and collecting reflected images of these lights through the image collector, the problem of insufficient information in the traditional optical detection system is solved, and higher detection accuracy and efficiency are achieved.

CN119756225AActive Publication Date: 2025-04-04창추안 테크놀로지 (수저우) 컴퍼니 리미티드
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Patent Information

Application Number
CN202412000451.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-04
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

In traditional optical detection systems, one light source is used for lighting, and the amount of information obtained is insufficient, resulting in low detection accuracy or low detection efficiency.

Method used

Design a triangular optical measurement system, including lighting module, imaging module and control module. The illumination module specifies the illumination light emitted by at least two light sources to form incoherent line light of different characteristics through the first functional spectroscopic element. The imaging module collects the reflected images of these incoherent line lights through the image collector, and the control module periodically collects the image when the object to be measured generates displacement along the preset scanning path.

Benefits of technology

By capturing image information of non-coherent light of different characteristics, more fine and accurate images are obtained, which improves detection accuracy or detection efficiency.

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Abstract

The invention relates to a triangular optical measurement system comprising an illumination module, the illumination module comprises a first function light splitting element and at least two light sources, the first function light splitting element is used for splitting illumination light emitted by the at least two light sources to form at least two non-phase line light with different characteristics, and the non-phase line light enters the surface of an object to be measured in the same direction; the imaging module comprises at least one image collector and is used for simultaneously collecting reflection images of at least two non-phase line lights as a region-of-interest image of one period; and the control module is used for periodically acquiring the image of the region of interest on the to-be-detected object when the to-be-detected object generates displacement along the preset scanning path, image information of non-phase line light with different characteristics on the surface of the to-be-detected object can be captured, a finer and more accurate image can be obtained, and the detection precision or the detection efficiency is improved.
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