Volume 37 Issue 6
Nov.  2017
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SUN Gaofei, LIU Shi, ZHANG Guoyu, ZHANG Yu, LEI Jie, MA Yiyuan. A Light Source System of Multi-star Simulator with Adjustable Background and Controllable Magnitude[J]. Journal of Space Science, 2017, 37(6): 760-765. doi: 10.11728/cjss2017.06.760
Citation: SUN Gaofei, LIU Shi, ZHANG Guoyu, ZHANG Yu, LEI Jie, MA Yiyuan. A Light Source System of Multi-star Simulator with Adjustable Background and Controllable Magnitude[J]. Journal of Space Science, 2017, 37(6): 760-765. doi: 10.11728/cjss2017.06.760

A Light Source System of Multi-star Simulator with Adjustable Background and Controllable Magnitude

doi: 10.11728/cjss2017.06.760
Funds:

Supported by Jilin Province Key Scientific and Technological Projects (20160204008GX), National Key Laboratory Fund Project (61420020210162002) and Changchun University of Science and Technology Innovation Fund (XJJLG-2016-15)

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  • Author Bio:

    SUN Gaofei,51579428@qq.com

  • Received Date: 2016-08-08
  • Rev Recd Date: 2017-04-23
  • Publish Date: 2017-11-15
  • A light source of multi-star simulator capable of background adjustment and magnitude control has been designed. Two integrating spheres are employed as the star-point light source and the background light source respectively. A beam splitter prism has been designed to serve as the beam combiner for the star-point and the background light sources, and a mathematical model has been constructed respectively to compute the light flux of the two integrating spheres. A magnitude testing system and a background testing system have been created using low-light illuminometer, luminance meter, and testing instruments to measure the star-point magnitude and the background luminance of the multi-star simulator. The test results suggest that the star-point magnitude is adjustable from 0 to +5mv, with a simulation precision superior to ±0.026mv. The maximum background luminance is 3.8×105 cd·m-2, and the minimum background luminance is 6.4×10-2 cd·m-2. The designed light source system can meet the requirements for simulating the stellar map with a sky background.

     

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