Development of the SOFIA silicon carbide secondary mirror

  title={Development of the SOFIA silicon carbide secondary mirror},
  author={M. Fruit and P. Antoine and Jean-Luc Varin and H. Bittner and M. Erdmann},
  booktitle={SPIE Astronomical Telescopes + Instrumentation},
The SOFIA telescope is ajoint NASA-DLR project for a 2.5 m airborne Stratospheric Observatory for IR Astronomy to be flown in a specially adapted Boeing 747 SP plane, Kayser-Threde being resopinsible for the development of the Telescope Optics. The φ 352 mm Secondary Mirror is mounted ona chopping mechanism to allow avoidance of background noise during IR observations. Stiffness associated to lightness is a major demand for such a mirror to achieve high frequency chopping. This leads to select… Expand
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