Share Email Print
cover

Proceedings Paper

Testbed for an adaptive secondary mirror of 1.8m telescope
Author(s): Xinlong Fan; Chunlin Guan; Changhui Rao
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Testbed for an adaptive secondary mirror of 1.8m telescope is a system, which originates from Simpson-Oland-Meckel method. The testbed is composed of Hartmann-Shack (H-S) wavefront sensor, Hindle element and analysis element. Light from H-S wavefront sensor passes through the Hindle element and reflects off of the adaptive secondary mirror. It then is reflected by the concave surface of the Hindle element. After reflecting off of the adaptive secondary mirror again, it passes through the Hindle element and return to the H-S wavefront sensor. A beam splitter is placed between H-S wavefront sensor and Hindle element to reflect part of the output light to analysis element. The testbed is a low cost simple system that allows testing the convex hyperboloid adaptive secondary mirror. It also could be used to calibrate the adaptive secondary mirror as well as investigating higher performance control loops. Optical setup design, tolerance of fabrication, alignment and material asymmetry are presented in this paper.

Paper Details

Date Published: 10 November 2010
PDF: 6 pages
Proc. SPIE 7849, Optical Design and Testing IV, 784928 (10 November 2010); doi: 10.1117/12.870204
Show Author Affiliations
Xinlong Fan, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Chunlin Guan, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)
Changhui Rao, Institute of Optics and Electronics (China)
The Key Lab. on Adaptive Optics (China)


Published in SPIE Proceedings Vol. 7849:
Optical Design and Testing IV
Yongtian Wang; Julie Bentley; Chunlei Du; Kimio Tatsuno; Hendrik P. Urbach, Editor(s)

© SPIE. Terms of Use
Back to Top