Volume 3Issue 6
Dec. 2010
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ZHAO Nan, XUE Yu, WANG Jing. Analysis of stray radiation from infrared optical system with Monte-Carlo method[J]. Chinese Optics, 2010, 3(6): 665-670.
Citation: ZHAO Nan, XUE Yu, WANG Jing. Analysis of stray radiation from infrared optical system with Monte-Carlo method[J].Chinese Optics, 2010, 3(6): 665-670.

Analysis of stray radiation from infrared optical system with Monte-Carlo method

  • Received Date:21 Aug 2010
  • Rev Recd Date:25 Oct 2010
  • Publish Date:20 Dec 2010
  • This paper introduces the concept of stray radiation and its influence on the image quality of a optical system. By taking a refractive infrared optical system as an example, it simplifies the 3D optical-mechanical system properly and uses the Monte-Carlo model built-in Light tools to analyze the stray radiation of the system and to obtain the illuminance distribution of image in the system. Meanwhile, it calculates the radiation of surfaces in different parts of the system, and compares their influences on the image quality of the system. Furthermore, it points out that the inter surface of fore frame in the proposed system is a main source of stray radiation. Corresponding to the results, this paper finally investigates the restraint ways for the stray radiation, which can be a reference for the following designs.

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