Adaptive optics and phase diversity imaging for responsive space applications.

Smith, Mark William ; Wick, David Victor

Sandia National Laboratories

关键词: Optics, Adaptive.;    Space Flight;    Feedback;    Mirrors;    Optical Systems;   

DOI  :  10.2172/920733
RP-ID  :  SAND2004-5686
RP-ID  :  AC04-94AL85000
RP-ID  :  920733

美国|英语

来源: UNT Digital Library

【 摘 要 】

The combination of phase diversity and adaptive optics offers great flexibility. Phase diverse images can be used to diagnose aberrations and then provide feedback control to the optics to correct the aberrations. Alternatively, phase diversity can be used to partially compensate for aberrations during post-detection image processing. The adaptive optic can produce simple defocus or more complex types of phase diversity. This report presents an analysis, based on numerical simulations, of the efficiency of different modes of phase diversity with respect to compensating for specific aberrations during post-processing. It also comments on the efficiency of post-processing versus direct aberration correction. The construction of a bench top optical system that uses a membrane mirror as an active optic is described. The results of characterization tests performed on the bench top optical system are presented. The work described in this report was conducted to explore the use of adaptive optics and phase diversity imaging for responsive space applications.