Sun Yongxue, Long Funian, Meng Qingyu, Zhao Xiao, Wang Chao, Zhou Jun. Infrared target simulator's polarizing beamsplitter system based on digital-micromirror device[J]. Infrared and Laser Engineering, 2014, 43(3): 749-753.
| Citation:
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Sun Yongxue, Long Funian, Meng Qingyu, Zhao Xiao, Wang Chao, Zhou Jun. Infrared target simulator's polarizing beamsplitter system based on digital-micromirror device[J]. Infrared and Laser Engineering, 2014, 43(3): 749-753.
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Infrared target simulator's polarizing beamsplitter system based on digital-micromirror device
- 1.
Research Center for Space Optical Engineering,Harbin Institute of Technology,Harbin 150001,China;
- 2.
Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;
- 3.
Shanghai Institute of Satellite Engineering,Shanghai 200240,China
- Received Date: 2013-07-20
- Rev Recd Date:
2013-08-23
- Publish Date:
2014-03-25
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Abstract
Digital-micromirror device has became the most popular device to create infrared image, because of its characteristics as high frame frequency, high spatial and temperature resolution and wide dynamic range. In order to avoid the occlusion and collision between the illumination system and the projection system in the infrared target simulator, a beam splitter prism need to be added, while the ordinary beam splitter prisms have the disadvantage of low light utilization. To solve this problem and improve the light energy efficiency of infrared target simulator, a new splitting method was given based on polarizing principle from physical optics basic theories, and a polarizing prism was designed. Light energy utilization was improved greatly, and satisfactory results were obtained.
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