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Optical Engineering • Open Access

Improved iterative algorithm for the three-flat test
Author(s): Bo Gao; Qiang Li; Yuhang He; Liqun Chai

Paper Abstract

An iterative algorithm has been successfully used to process data from the three-flat test. On the basis of the iterative algorithm proposed by Vannoni, which is much faster and more effective than the Zernike polynomial fitting method, an improved algorithm is presented. By optimizing the iterative steps and removing the scaling factors, the surface shape can be easily computed in a few iterations. The validity of the method is proved by computer simulation, and the interpolation error and principle error are analyzed.

Paper Details

Date Published: 16 April 2014
PDF: 6 pages
Opt. Eng. 53(9) 092004 doi: 10.1117/1.OE.53.9.092004
Published in: Optical Engineering Volume 53, Issue 9
Show Author Affiliations
Bo Gao, Chengdu Fine Optical Engineering Research Ctr. (China)
Qiang Li, Chengdu Fine Optical Engineering Research Ctr. (China)
Yuhang He, Chengdu Fine Optical Engineering Research Ctr. (China)
Liqun Chai, Chengdu Fine Optical Engineering Research Ctr. (China)


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