Mirror Segment Alignment Using A Multiple-Order Radial-Grating Shearing Interferometer

Philip D. Henshaw

doi:10.1117/12.934922

1 December 1983 Mirror Segment Alignment Using A Multiple-Order Radial-Grating Shearing Interferometer

Philip D. Henshaw

Proceedings Volume 0383, Deployable Optical Systems; (1983) https://doi.org/10.1117/12.934922
Event: 1983 Los Angeles Technical Symposium, 1983, Los Angeles, United States

Abstract

A method has been developed for comparing the tilt and phase of segments of a collimated wavefront using a multiple-order radial-grating shearing interferometer. Here the extension of this technique to segmented primary mirror tilt and phase alignment is considered. A configuration for the interferometer and a method of unambiguously measuring a two-dimensional array of segments is presented.

Citation Download Citation

Philip D. Henshaw "Mirror Segment Alignment Using A Multiple-Order Radial-Grating Shearing Interferometer", Proc. SPIE 0383, Deployable Optical Systems, (1 December 1983); https://doi.org/10.1117/12.934922

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