A three-degree-of-freedom displacement-adjusted lens image quality detection device

The lens image quality inspection device with three-degree-of-freedom displacement adjustment solves the problem of limited adjustment in the height direction of existing lens image quality inspection devices, achieves high-precision optical alignment and stable clamping, adapts to the inspection needs of lenses of various specifications, and improves inspection efficiency and accuracy of results.

CN224681774UActive Publication Date: 2026-08-25BEIJING TRANS MFG & TRADE
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Patent Information

Application Number
CN202521950735.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2026-08-25
Estimated Expiration
2035-09-10

AI Technical Summary

Technical Problem

Existing lens image quality inspection devices have limited height adjustment, which cannot meet the adjustment requirements of high-end optical inspection. Furthermore, the existing inspection fixtures have low positioning accuracy and crude clamping mechanism design, resulting in insufficient accuracy and poor repeatability of inspection results, making them unsuitable for the inspection needs of lenses of various specifications.

Method used

The lens image quality testing device adopts a three-degree-of-freedom displacement adjustment. The lens clamping assembly is driven to move along the XYZ direction by a three-axis displacement stage. Combined with the modular lens clamping assembly and flexible limiting structure, it can achieve high-precision adjustment and stable clamping of the optical lens under test in three-dimensional space, ensuring the accuracy of optical alignment.

Benefits of technology

It enables high-precision adjustment of the optical lens under test in three-dimensional space, ensuring the accuracy of optical alignment, improving the accuracy and repeatability of test results, adapting to the test requirements of lenses of different specifications, and improving the test efficiency and equipment versatility.

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Abstract

The application provides a three-freedom-displacement-adjusted lens image quality detection device, comprising: a base; an image source assembly arranged on the base; a three-axis displacement table arranged on the base and located on one side of the image source assembly; a lens clamping assembly arranged on the three-axis displacement table and used for clamping a to-be-detected optical lens, the lens clamping assembly moving along XYZ directions through driving of the three-axis displacement table; and an imaging assembly arranged on the base and located on a side of the three-axis displacement table away from the image source assembly; the image source assembly forms a detection image through imaging of the to-be-detected optical lens, and the imaging assembly is used for receiving the detection image. The problem that the adjustment of the detection tool in the height direction is limited in the prior art and cannot meet the adjustment requirements of high-end optical detection is solved.
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