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Proceedings Paper

Method and system of compensating test for high-order aspherics
Author(s): Guanqing Lin; Meiliang Yi
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Paper Abstract

We present the essential structures of compensating test system for high order aspherical plates and high order aspherical surfaces, of which R-C and Quasi-R-C systems with aperture of 1 meter, f/8 and FOV of 1 degree.5 are composed. All these compensating test systems reach very high compensating accuracy, the residual of most tested surfaces is less than (lambda) /100. A formula of third order spherical aberration is derived and applied to initial solution of compensator. The initial structure of the compensator is in correspondence with the optimal result very well. Finally, taking high order aspherical plate as an example, we discuss in detail the test system errors, and give some ideas of reducing test system error or loosing requirement of fabrication tolerance.

Paper Details

Date Published: 11 November 1999
PDF: 10 pages
Proc. SPIE 3782, Optical Manufacturing and Testing III, (11 November 1999);
Show Author Affiliations
Guanqing Lin, Nanjing Astronomical Instruments Research Ctr. (China)
Meiliang Yi, Nanjing Astronomical Instruments Research Ctr. (China)

Published in SPIE Proceedings Vol. 3782:
Optical Manufacturing and Testing III
H. Philip Stahl, Editor(s)

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