一种由浮动标定驱动的光瞳稳定闭环控制系统及方法

The pupil stabilization closed-loop control system driven by floating calibration utilizes a two-stage tilting mirror architecture and a high-voltage amplifier to achieve coordinated stabilization of the pupil and optical axis, solving the problems of pupil positioning accuracy and response speed, simplifying the system structure, and making it suitable for high-precision optical systems.

CN121879000BActive Publication Date: 2026-07-17INST OF OPTICS & ELECTRONICS CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INST OF OPTICS & ELECTRONICS CHINESE ACAD OF SCI
Filing Date
2026-03-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing pupil stabilization solutions suffer from limitations in pupil positioning accuracy, slow response speed, and high system complexity under the requirements of large dynamic range and high bandwidth, making it difficult to simultaneously meet the dual stabilization requirements of the optical axis and pupil.

Method used

A closed-loop control system for pupil stabilization driven by floating calibration is adopted. Through a two-stage tilting mirror joint adjustment architecture and a floating calibration model, high-precision feedforward calculation of pupil offset is achieved. Combined with a high-voltage amplifier driving the tilting mirror, coordinated stabilization control of the optical axis and pupil is performed, simplifying the system architecture and avoiding real-time feedback from the pupil detector.

Benefits of technology

It improves the positioning accuracy and control response speed of the pupil, achieves deep coordination and stability between the optical axis and the pupil, simplifies the system structure, reduces hardware costs and deployment difficulty, and is suitable for high-precision optical systems.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121879000B_ABST
    Figure CN121879000B_ABST
Patent Text Reader

Abstract

本发明公开了一种由浮动标定驱动的光瞳稳定闭环控制系统及方法,属于自适应光学技术领域,该方法设计包括两级倾斜镜的双级倾斜镜联调闭环控制架构并搭建对应的由浮动标定驱动的光瞳稳定闭环控制系统;通过第一和第二光轴探测模块配合完成系统标定;根据预期的光瞳调整量计算第一光轴探测器标定点的修正值;基于一级倾斜镜倾斜角度与光路几何关系,驱动二级倾斜镜倾斜补偿角度;实时根据光瞳调整量浮动调节第一光轴探测器的标定点。将光瞳偏移调控由依赖实时探测反馈转变为基于几何光学模型的前馈驱动与高速光轴闭环的协同,对光瞳漂移实现高精度、高响应稳定控制的同时确保了光轴的稳定控制,维持光轴光瞳的双重稳定。
Need to check novelty before this filing date? Find Prior Art