Share Email Print
cover

Proceedings Paper • Open Access

Design of all-reflective space-borne 1-m aperture solar optical telescope
Author(s): Y. Suematsu; H. Hara; Y. Katsukawa; R. Kano; T. Shimizu; K. Ichimoto

Paper Abstract

A 1-m aperture optical telescope is planned for a future Japanese solar mission. The telescope is designed to provide high spatial resolution data of solar lower atmosphere from the photosphere to the uppermost chromosphere with enhanced spectroscopic and spectro-polarimetric capabilities covering a wide wavelength region from UV to near IR where many useful spectral lines and continua exist for physical diagnosis of the solar magnetized atmosphere. We designed an allreflective telescope to fulfill the scientific and engineering requirements. From a thermal view point, a Gregorian telescope is the most suitable. To avoid chromatic aberration, a tri-aspheric-mirror collimator coupling to the Gregorian was designed to give a diffraction-limited performance over the FOV by allowing a field curvature. The field curvature can be compensated by an off-axis Ritchey Chretien reimaging optics at an entrance of focal plane instrument, which has an opposite sign in the field curvature to the Gregorian. We also briefly studied structural design of all-reflective 1-m aperture solar optical telescope for the space solar mission.

Paper Details

Date Published: 12 July 2019
PDF: 9 pages
Proc. SPIE 11180, International Conference on Space Optics — ICSO 2018, 111800R (12 July 2019); doi: 10.1117/12.2535946
Show Author Affiliations
Y. Suematsu, National Astronomical Observatory of Japan (Japan)
H. Hara, National Astronomical Observatory of Japan (Japan)
Y. Katsukawa, National Astronomical Observatory of Japan (Japan)
R. Kano, National Astronomical Observatory of Japan (Japan)
T. Shimizu, ISAS (Japan)
K. Ichimoto, Kyoto Univ. (Japan)


Published in SPIE Proceedings Vol. 11180:
International Conference on Space Optics — ICSO 2018
Zoran Sodnik; Nikos Karafolas; Bruno Cugny, Editor(s)

© SPIE. Terms of Use
Back to Top
PREMIUM CONTENT
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?
close_icon_gray