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Proceedings Paper

Performance of the reflective optics of MIMIZUKU at cryogenic temperature
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Paper Abstract

MIMIZUKU (Mid-infrared Multi-field Imager for gaZing at the UnKnown Universe) is a near- to mid-infrared camera for the 6.5-m TAO (The university of Tokyo Atacama Observatory) telescope. To realize both the compactness of the instrument and the wide field of view of 2 arcmin, MIMIZUKU has unique reflective optics, which is composed of off-axis aspherical mirrors made of machined aluminum. These mirrors should be placed and aligned very precisely with the accuracy of < 0.01 mm and < 0.01 degrees. We performed the experiments to test whether MIMIZUKU optics works as designed at cryogenic temperature. We present the evaluation of imaging performance and the distortion on the focal plane of MIMIZUKU.

Paper Details

Date Published: 6 July 2018
PDF: 7 pages
Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 107022N (6 July 2018); doi: 10.1117/12.2312772
Show Author Affiliations
Tomohiro Mori, The Univ. of Tokyo (Japan)
Takashi Miyata, The Univ. of Tokyo (Japan)
Takafumi Kamizuka, The Univ. of Tokyo (Japan)
Ryou Ohsawa, The Univ. of Tokyo (Japan)
Shigeyuki Sako, The Univ. of Tokyo (Japan)
Masahito S. Uchiyama, The Univ. of Tokyo (Japan)
Jumpei Yamaguchi, The Univ. of Tokyo (Japan)
Yutaka Yoshida, The Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 10702:
Ground-based and Airborne Instrumentation for Astronomy VII
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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