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Proceedings Paper

Design and development of a wide field telescope
Author(s): Il Moon; Sangon Lee; Juhee Lim; Ho-Soon Yang; Hyug-Gyo Rhee; Jae Bong Song; Yun Woo Lee; Jong Ung Lee; Ho Jin
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Paper Abstract

A prototype of large wide field telescope is a Cassegrain telescope which covers 2° field of view with two hyperbolic mirrors, a 0.5 m primary mirror and a 0.2 m secondary mirror with multiple correction lenses. To fulfill the optical and mechanical performance requirements in design and development phase extensive finite element analyses using NX NASTRAN and optical analyses with CODE V and PCFRINGE have been conducted for the structure of optical system. Analyses include static deformation (gravity and thermal), frequency, dynamic response analysis, and optical performance evaluations for minimum optical deformation. Image motion is also calculated based on line of sight sensitivity equations integrated in finite element models. A parametric process was performed for the design optimization to produce highest fundamental frequency for a given weight, as well as to deal with the normal concerns about global performance.

Paper Details

Date Published: 27 September 2012
PDF: 9 pages
Proc. SPIE 8444, Ground-based and Airborne Telescopes IV, 844448 (27 September 2012); doi: 10.1117/12.926647
Show Author Affiliations
Il Moon, Korea Research Institute of Standards and Science (Korea, Republic of)
Sangon Lee, Korea Research Institute of Standards and Science (Korea, Republic of)
Hannam Univ. (Korea, Republic of)
Juhee Lim, Korea Research Institute of Standards and Science (Korea, Republic of)
Kyung Hee Univ. (Korea, Republic of)
Ho-Soon Yang, Korea Research Institute of Standards and Science (Korea, Republic of)
Hyug-Gyo Rhee, Korea Research Institute of Standards and Science (Korea, Republic of)
Jae Bong Song, Korea Research Institute of Standards and Science (Korea, Republic of)
Yun Woo Lee, Korea Research Institute of Standards and Science (Korea, Republic of)
Jong Ung Lee, Cheongju Univ. (Korea, Republic of)
Ho Jin, Kyung Hee Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8444:
Ground-based and Airborne Telescopes IV
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

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