YANG Hao-ming, WANG Ling-jie, WENG Zhi-cheng, et al. Optical system of light star tracker with wide field and large aperture[J]. Optics and precision engineering, 2007, 15(2): 151-154.
YANG Hao-ming, WANG Ling-jie, WENG Zhi-cheng, et al. Optical system of light star tracker with wide field and large aperture[J]. Optics and precision engineering, 2007, 15(2): 151-154.DOI:
photoelectric receiver and image processing element is a key equipment of satellites for star position. In this paper
we present a optical system of light CCD star tracker with wide filed and large aperture in a focal length of 25 mm
a
F
-number of 1.2
a working wavelength range of 470~750 nm and a view angle of 25 degrees. The optical system is composed of a double-Gauss lens and a piece of positive lens
considering the large
F
number. In order to decrease the input angles of the axial and off-axial light bundle
the glass with high refractive index is used to produce smaller high-order aberrations and shorten the total length of the system. The imaging analysis results show that the design is a feasible scheme
and the total system length is only 46.51 mm.
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references
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