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1 January 1992 Novel technique for aligning paraboloids
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Abstract
A technique is described for aligning an autocollimating test of an off-axis paraboloidal segment. A corner reflector (corner-cube retroreflector) is incorporated as an alignment aid to interferometrically align a paraboloidal segment to a spherical wavefront. This alignment task is typically quite challenging and time consuming because the interferograms obtained from a partially aligned autocollimating test cannot be easily interpreted for alignment correction. The normal alignment process requires iterative cycles of adjustment, realignment, and evaluation to achieve results. The use of a corner reflector significantly reduces the time required for the alignment of a n autocollimating test because it provides images and interferograms that can easily be interpreted for alignment correction. The wide dynamic range of this alignment technique makes it applicable to a variety of alignment tasks involving paraboloidal mirrors.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
L. Curt Maxey "Novel technique for aligning paraboloids", Proc. SPIE 1531, Advanced Optical Manufacturing and Testing II, (1 January 1992); https://doi.org/10.1117/12.134855
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