使用多层电致伸缩器的二维可变形镜。

Deformable 2-D mirror using multilayered electrostrictors.

作者信息

Sato T, Ishikawa H, Ikeda O, Nomura S, Uchino K

机构信息

Tokyo Institute of Technology, Japan.

出版信息

Appl Opt. 1982 Oct 15;21(20):3669-72. doi: 10.1364/AO.21.003669.

DOI:10.1364/AO.21.003669

PMID:20396294

Abstract

A compact 2-D deformable mirror is proposed which consists of multiple electrostrictive laminar sheets bonded to the backside of a mirror glass plate. A set of desired wave fronts is considered; the sheets are assigned to generate each wave front separately. The electrode of each sheet is designed so that the exact voltage distribution required to deform the mirror surface is approximated optimally by a few discrete voltages. In actual operation, the deformation of the mirror is determined by the superposition of properly weighted contributions from all the actuators. The usefulness of the construction is demonstrated experimentally.

摘要

提出了一种紧凑的二维变形镜，它由多个粘结在镜玻璃板背面的电致伸缩层片组成。考虑了一组所需的波前；这些层片被分配以分别产生每个波前。每个层片的电极被设计成使得使镜面变形所需的精确电压分布通过几个离散电压得到最佳近似。在实际操作中，镜子的变形由所有致动器的适当加权贡献的叠加来确定。通过实验证明了这种结构的实用性。