Paper
17 July 1996 Surface measurement of optical cylinder using multiaperture overlap-scanning technique (MAOST)
Weiming Cheng, Mingyi Chen
Author Affiliations +
Abstract
Multiaperture overlap-scanning technique (MAOST) has been successfully used to measure larger optical flat with a smaller reference flat. This paper extends the technique to measure an optical cylinder. Utilizing the information in overlap area between subapertures, MAOST connects them to one aperture called full aperture. With the technique, half a cylinder or even a whole cylinder can be accurately measured. In the paper, the fundamental is discussed, mathematical model is given and connection results of 2 interferograrns and 17 interferograms are shown. Results indicate that the error in principle of the method is about the order of 108 A
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Weiming Cheng and Mingyi Chen "Surface measurement of optical cylinder using multiaperture overlap-scanning technique (MAOST)", Proc. SPIE 2860, Laser Interferometry VIII: Techniques and Analysis, (17 July 1996); https://doi.org/10.1117/12.276321
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CITATIONS
Cited by 3 scholarly publications.
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KEYWORDS
Wavefronts

Optical testing

Mathematical modeling

Silicon

Lithium

Argon

Interferometry

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