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Proceedings Paper

Comparison of interpolation and approximation methods for optical freeform synthesis
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Paper Abstract

Interpolation and approximation methods for freeform surface synthesis are analyzed using the developed software tool. Special computer tool is developed and results of freeform surface modeling with piecewise linear interpolation, piecewise quadratic interpolation, cubic spline interpolation, Lagrange polynomial interpolation are considered. The most accurate interpolation method is recommended. Surface profiles are approximated with the square least method. The freeform systems are generated in optical design software.

Paper Details

Date Published: 26 June 2017
PDF: 6 pages
Proc. SPIE 10330, Modeling Aspects in Optical Metrology VI, 103301P (26 June 2017); doi: 10.1117/12.2270314
Show Author Affiliations
Anna Voznesenskaya, ITMO Univ. (Russian Federation)
Pavel Krizskiy, ITMO Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 10330:
Modeling Aspects in Optical Metrology VI
Bernd Bodermann; Karsten Frenner; Richard M. Silver, Editor(s)

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