Translator Disclaimer
Paper
5 August 2015 Study of the impact of petal-shape mirror segmentation on 2 m segmented telescope
Author Affiliations +
Abstract
The final optical design for a 2m infrared telescope with segmented primary mirror is presented in this paper, in response to the “2m segmented infrared telescope” proposal by Shanghai Institute of Technical Physics, Chinese Academy of Sciences for researching on the next generation of astro-physical mission. The segmented primary mirror adopts a circular center mirror and 8 petal-shape segment mirrors. To investigate the effects of intersegment gaps, position and figure errors of segments, a wavefront aberration representation is derived through aspheric surface equation, then, the linear relation between wavefront aberration and interference bright fringe is established, therefore, a linear retrieval algorithm of stitching tolerances base on the tolerances sensitivity matrix is proposed. In order to verify the algorithm, a simulation program is developed to analyze the fringe Zernike coefficients data of ZEMAX ray tracing, and the simulation results show that the maximum retrieval deviation is in the range of ±0.5%.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cundong Lei, Liehua Zheng, and Ying Che "Study of the impact of petal-shape mirror segmentation on 2 m segmented telescope", Proc. SPIE 9618, 2015 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 96180R (5 August 2015); https://doi.org/10.1117/12.2192827
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Optical design of the WFIRST-AFTA wide-field instrument
Proceedings of SPIE (December 17 2014)
Recent discoveries from nodal aberration theory
Proceedings of SPIE (September 09 2010)
Multi-field alignment of the James Webb Space Telescope
Proceedings of SPIE (September 21 2012)

Back to Top