Volume 4 Issue 4
Aug.  2011
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XU Liang, ZHAO Jian-ke, ZHOU Yan, ZHANG Jie, LIU Feng. Development of dim light ultraviolet star simulator[J]. Chinese Optics, 2011, 4(4): 369-373.
Citation: XU Liang, ZHAO Jian-ke, ZHOU Yan, ZHANG Jie, LIU Feng. Development of dim light ultraviolet star simulator[J]. Chinese Optics, 2011, 4(4): 369-373.

Development of dim light ultraviolet star simulator

  • Received Date: 13 May 2011
  • Rev Recd Date: 13 Jul 2011
  • Publish Date: 25 Aug 2011
  • In order to resolve the problem on calibration for a lunar-based ultraviolet camera in deep space, an ultraviolet star simulator with large dynamic ranges and high precision simulating magnitudes was developed. By taking an off-axis collimator with the focal length of 5 000 mm as a collimating system and a double integrating sphere as the uniform source of light, it can simulate the star magnitude from 3 to 16 with the system minimum resolution of star magnitude of 0.2 and the uncertainty of 5.48%. The experimental result shows that the star simulator satisfies the requirement of ground-based calibration for the lunar-based ultraviolet camera in deep space. It not only can calibrate the detection ability and sensitivity of the ultraviolet camera, but also can measure its other technological parameters, which provides the foundation of ground-based calibration for developing the high altitude orbit camera in deep space.

     

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