An industrial line scan lens

By incorporating a floating focusing lens group and a fixed lens group in an industrial line scan lens, combined with a combination of positive and negative power lenses, the problems of large size and high distortion rate of existing lenses are solved, achieving a larger imaging range and higher resolution imaging effect.

CN224480613UActive Publication Date: 2026-07-10东莞市宇承科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
东莞市宇承科技有限公司
Filing Date
2025-07-22
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Most existing industrial line scan lenses are large in size, making it difficult to achieve continuous focusing over a large object distance within a limited volume. They also have high optical distortion rates, which cannot meet the stringent standards of industrial scenarios.

Method used

Design an industrial line scan lens that employs a structure where the focusing lens group can float along the optical axis and the fixed lens group has a fixed position. By combining positive and negative power lenses, it can achieve focusing at object distances of 300mm-1000mm. Furthermore, by rationally setting the power and surface shape of the lens group, distortion can be reduced and image quality improved.

Benefits of technology

It achieves a larger imaging range, less distortion, and higher resolution imaging effect in a miniaturized lens, meeting the high precision requirements of industrial scenarios.

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Abstract

This utility model discloses an industrial line scan lens, comprising a focusing lens group and a fixed lens group arranged sequentially along the optical axis from the object plane to the image plane. The position of the focusing lens group is movable along the optical axis, while the position of the fixed lens group is fixed. The focusing lens group has positive optical power and includes a first lens, a second lens, a third lens, and a fourth lens arranged sequentially along the optical axis from the object plane to the image plane. The fixed lens group has positive optical power and includes a fifth lens and a sixth lens arranged sequentially along the optical axis from the object plane to the image plane. The movable focusing lens group along the optical axis enables focusing at different object distances, while the fixed lens group remains stationary, reducing the impact of different object distances on resolution and ensuring balanced image quality at various working distances. Furthermore, the reasonable setting of the number of lenses in each lens group and the optical power of the lens groups is beneficial for achieving a high-quality industrial line scan lens.
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