Optical lens piezoelectric rotation micro-adjustment structure

By combining flexible hinges and piezoelectric ceramic drives, the problems of precision decay and wear in traditional rotary adjustment mechanisms are solved, achieving high-precision, stable, and efficient angle adjustment of optical lenses.

CN224383540UActive Publication Date: 2026-06-19SANJI NANO DISPLACEMENT TECHNOLOGY (SHANGHAI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANJI NANO DISPLACEMENT TECHNOLOGY (SHANGHAI) CO LTD
Filing Date
2025-08-22
Publication Date
2026-06-19

AI Technical Summary

⚠Technical Problem

Traditional rotary adjustment mechanisms suffer from precision decay due to mechanical friction and backlash errors caused by rigid hinge clearance. Mechanical hinges are prone to wear and backlash due to sliding friction, leading to inaccurate angle positioning after long-term use.

⚗Method used

The system combines flexible hinges and piezoelectric ceramic drives. The flexible hinges prevent sliding friction, while the high-precision driving characteristics of the piezoelectric ceramics enable precise adjustment of the optical lenses. A capacitive sensor monitors position changes in real time to ensure stability and reliability.

🎯Benefits of technology

It enables precise adjustment of the optical lens angle, improves the stability of angle positioning and adjustment efficiency during long-term use, and enhances dynamic performance and stability under environmental conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to piezoelectric rotation micro -adjustment structure technical field, specifically disclose a kind of optical lens piezoelectric rotation micro -adjustment structure, comprising: table body fixed surface, table body fixed surface outside is equipped with rotary moving surface, flexible hinge is connected between rotary moving surface and table body fixed surface, table body fixed surface one side is equipped with adjusting module, adjusting module is connected with rotary moving surface, adjusting module carries out angle micro -adjustment to optical lens by adjusting the rotation angle of rotary moving surface, this optical lens piezoelectric rotation micro -adjustment structure, by using flexible hinge, avoid the abrasion and idle stroke error generated due to sliding friction, utilize the high-precision driving characteristics of piezoelectric ceramic, realized the accurate adjustment of optical lens angle, improved the angle positioning stability of long-term use, the design of capacitive sensor can real-time monitoring the position change of rotary moving surface, ensure the stability and reliability of optical lens under complex environment.
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