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Proceedings Paper

Algorithm for computation of off-axis aspheric surface parameters
Author(s): Shu Li; Yuegang Fu
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Paper Abstract

To help the fabrication of off-axis aspheric section, we present an algorithm to calculate current surface parameters, such as lateral displacement, tilt angle and paraxial radius. This algorithm bases on the equation for conic aspheric surface and general geometry transformation matrix of three-dimension graphics, and deduces an equation about the coordinate and surface parameters. In order to solve this problem, we developed a new software based on Conjugate Direction Method to minimize the RMS of deviation. By using the software, the efficiency of test increases obviously and the accuracy of test is perfect because this method can avoid the effect of transfer and rotation of surface data.

Paper Details

Date Published: 17 January 2008
PDF: 6 pages
Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 672336 (17 January 2008); doi: 10.1117/12.783417
Show Author Affiliations
Shu Li, Changchun Univ. of Science and Technology (China)
Yuegang Fu, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6723:
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Junhua Pan; James C. Wyant; Hexin Wang, Editor(s)

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