Portal de Periódicos da CAPES

PRELIMINARY OPTICAL DESIGN OF MIRIS, MAIN PAYLOAD OF STSAT-3

2007; Volume: 22; Issue: 4 Linguagem: Inglês

10.5303/pkas.2007.22.4.201

2287-6936

I.-S. Yuk, H. Jin, S. Lee, Y.S. Park, D.H. Lee, Uk‐Won Nam, J.H. Park, Wei Han, Jeong Wook Lee,

Adaptive optics and wavefront sensing

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.