Hao Qun, Cheng Xuemin, Kang Jiqiang, Jiang Yuhua
Beijing Key Lab. for Precision Optoelectronic Measurement Instrument and Technology, School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China.
Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
Sensors (Basel). 2015 Jan 15;15(1):1736-49. doi: 10.3390/s150101736.
An image stabilization optical system using deformable freeform mirrors is proposed that enables the ray sets to couple dynamically in the object and image space. It aims to correct image blurring and degradation when there is relative movement between the imaging optical axis and the object. In this method, Fermat's principle and matrix methods are used to describe the optical path of the entire optical system with a shift object plane and a fixed corresponding image plane in the carrier coordinate system. A constant optical path length is determined for each ray set, so the correspondence between the object and the shift free image point is used to calculate the solution to the points on the surface profile of the deformable mirrors (DMs). Off-axis three-mirror anastigmats are used to demonstrate the benefits of optical image stabilization with one- and two-deformable mirrors.
提出了一种使用可变形自由曲面镜的图像稳定光学系统，该系统能使光线集在物空间和像空间中动态耦合。其目的是在成像光轴与物体之间存在相对运动时校正图像模糊和退化。在该方法中，使用费马原理和矩阵方法在载体坐标系中描述具有移动物平面和固定对应像平面的整个光学系统的光路。为每个光线集确定恒定的光程长度，因此利用物与移动自由像点之间的对应关系来计算可变形镜（DM）表面轮廓上各点的解。采用离轴三镜消像散系统来展示使用一个和两个可变形镜实现光学图像稳定的优势。
