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
The influence of dichroic beam splitter on the airborne multiband co-aperture optical system
Author NameAffiliation
XING Zhen-chong Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China 
HONG Yong-feng Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China 
ZHANG Bao Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China 
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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