Publications of The Korean Astronomical Society (천문학논총)

The Korean Astronomical Society (한국천문학회)
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PRELIMINARY OPTICAL DESIGN OF MIRIS, MAIN PAYLOAD OF STSAT-3

과학기술위성3호 주탑재체 MIRIS의 광학계 시험설계

  • Yuk, I.S. (Korea Astronomy and Space Science Institute) ;
  • Jin, H. (Korea Astronomy and Space Science Institute) ;
  • Lee, S. (Korea Astronomy and Space Science Institute) ;
  • Park, Y.S. (Korea Astronomy and Space Science Institute) ;
  • Lee, D.H. (Korea Astronomy and Space Science Institute) ;
  • Nam, U.W. (Korea Astronomy and Space Science Institute) ;
  • Park, J.H. (Korea Astronomy and Space Science Institute) ;
  • Han, W.Y. (Korea Astronomy and Space Science Institute) ;
  • Lee, J.W. (Cheongju University)
  • Published : 2007.12.31
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Abstract

We have preliminarily designed two infrared optical systems of the multi-purpose infrared camera system (MIRIS) which is the main payload of STSAT-3. Each optical system consists of a Cassegrain telescope, a field lens and a 1:1 re-imaging lens system that is essential for providing a cold stop. The Cassegrain telescope is identical for both of two infrared cameras, but the field correction lens and re-imaging lens system are different from each other because of different bands of wavelength. The effective aperture size is 100mm in diameter and the focal ratio is f/5. The total length of the optical system is 300mm and the position of the cold stop is 25mm from the detector focal plane. The RMS spot size is smaller than $40{\mu}m$ over the whole detector plane.

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References

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