Volume 4 Issue 2
Apr.  2011
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DONG Ji-hong, WANG Ke-jun, LI Yan-chun, WANG Hai-ping. Lightweight design of large-aperture SiC primary mirrors for space remote sensors[J]. Chinese Optics, 2011, 4(2): 118-123.
Citation: DONG Ji-hong, WANG Ke-jun, LI Yan-chun, WANG Hai-ping. Lightweight design of large-aperture SiC primary mirrors for space remote sensors[J]. Chinese Optics, 2011, 4(2): 118-123.

Lightweight design of large-aperture SiC primary mirrors for space remote sensors

  • Received Date: 21 Oct 2010
  • Rev Recd Date: 23 Dec 2010
  • Publish Date: 25 Apr 2011
  • In consideration of the effects of the mass and sizes of primary mirrors on the load sensitivity, mirror processing and the cost of space remote sensors, the necessity of lightweight for primary mirrors in space remote sensors was introduced, and the lightweight technology was comprehensively summarized. The general rule of the lightweight technology for primary mirrors was described, the different methods of lightweight were compared and the formula for a grid size were given. For a practical project, a SiC primary mirror with half symmetric sandwith structure and a triangular aperture was designed by the iterative method. It overcomes the shortcomings of traditional design method and realizes a single mirror with light mass and excellent rigidity. This method provides a reference for the lightweight technology of large-aperture SiC primary mirrors for the future.

     

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