High Accurate Space Telescope Mirror Made by Light and Thermally Stable CFRP

• KOYANAGI Jun

  Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency

• ARAO Yoshihiko

  Department of Applied Mechanics and Aerospace Engineering, Waseda University

• UTSUNOMIYA Shin

  Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency

• TAKEDA Shin-ichi

  Aerospace Research and Development Directorate, Japan Aerospace Exploration Agency

• KAWADA Hiroyuki

  Department of Applied Mechanics and Aerospace Engineering, Waseda University

抄録

This paper reports a development of space telescope mirror made by light and thermally stable CFRP. We first compare thermal stabilities of a mirror made by CFRP with a conventional that made by glass material. The superior point regarding the thermal stability of the CFRP mirror to the glass mirror is described. One of the most critical issues for CFRP mirror is the mirror-surface roughness deterioration induced by "fiber-print through". We made a prototype mirror consisting of only CFRP with a gel-coating on the mirror surface, addressing the issue. The gel-coated mirror-surface roughness was 20 nmRMS just after fabrication. Durability of the surface roughness under various hostile conditions is examined in the present study.

収録刊行物

• JSMME

  JSMME 4 (11), 1540-1549, 2010

  一般社団法人 日本機械学会

キーワード

• CFRP
• Telescope Mirror
• Surface Roughness
• Fiber-print Through
• Gel Coating
• Durability

詳細情報

• CRID: 1390001205263827712
• NII論文ID: 130000420983
• DOI: 10.1299/jmmp.4.1540
• ISSN: 18809871
• Web Site: http://www.jstage.jst.go.jp/article/jmmp/4/11/4_11_1540/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可