散射透镜的成像原理及应用

Imaging principle and application of scattering lens

克服散射影响的成像恢复是光学领域最重要的研究课题之一.散射介质在某些情况下具有类似透镜的成像特性,被称为散射透镜.利用该特性,多种新型的成像技术被提出并有效应用到复杂环境下的成像恢复.本文介绍了常规透镜与散射透镜在物理结构、数学描述和成像特性上的异同,着重展示了利用散射透镜特性的实验设计思路、方法和前沿研究的进展.力图在散射成像领域建立从教科书到科研前沿的联系,以此来激发学生的创新思维,提高学生的动手能力.

Imaging restoration in scattering environment is one of the most important research topics in the field of optics.The scattering medium has imaging characteristics similar to a lens and is called a scattering lens.Using this feature,a variety of new imaging technologies have been proposed and effectively applied to imaging restoration in a variety of complex environments.The similarities and differences between the scattering lens and the conventional lens in physical structure,mathematical description and imaging characteristics were introduced in this paper,and the experimental design ideas,methods and frontier developments were highlighted.The connection between textbooks and scientific researches was attempted to establish,which could motivate students’innovative thinking and improve students’practical ability.