Correction capability of an active mirror

Yang Yu; Genrui Cao

doi:10.1117/12.481697

5 September 2002 Correction capability of an active mirror

Yang Yu, Genrui Cao

Proceedings Volume 4926, Adaptive Optics and Applications II; (2002) https://doi.org/10.1117/12.481697
Event: Photonics Asia, 2002, Shanghai, China

Abstract

Using an actuator array to thrust load onto the back of a mirror can control the profile of the mirror or correct its residual irregularity. It is meaningful to study how to improve the control or correction capability of active mirror for practice. The closest profile of a mirror to a given Zernike element profile can be obtained through linear combination of the influence functions. The algorithm of evaluating an active mirror's capability of correction is presented. Static analysis via Finite Element Method (FEM) is studied at various conditions with different amount and distribution of actuators, as well as the fixing manner, and the optimum scheme of actuator array is yielded.

Citation Download Citation

Yang Yu and Genrui Cao "Correction capability of an active mirror", Proc. SPIE 4926, Adaptive Optics and Applications II, (5 September 2002); https://doi.org/10.1117/12.481697

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