The influence of dichroic beam splitter on the airborne multiband co-aperture optical system
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1. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

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    Abstract:

    The multiband co-aperture optical system with compact structure can achieve full and effective integration of multi-source intelligence information, which is one of the development direction of the optical system. Dichroic beam splitter is a vital optical component to make several systems with different bands share one aperture. The effect of the dichroic beam splitter on the multiband co-aperture optical system is analyzed by matrix optics method and primary aberration theory. The results indicate that the reflection angle of the dichroic beam splitter as a reflector changes imaging direction, and the wedge angle of the dichroic beam splitter as a transmission component increases some aberrations.

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XING Zhen-chong, HONG Yong-feng, ZHANG Bao. The influence of dichroic beam splitter on the airborne multiband co-aperture optical system[J]. Optoelectronics Letters,2018,14(4):250-256

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History
  • Received:December 29,2017
  • Revised:March 23,2018
  • Online: July 26,2018
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