Electronics Optics & Control, Volume. 20, Issue 12, 88(2013)

A Passive Optical Athermalization Design of Middle Wavelength Infrared Optical System

CHEN Jianfa1...2, WANG Helong1,2 and LIU Xin2 |Show fewer author(s)
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  • 1[in Chinese]
  • 2[in Chinese]
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    A method for passive optical athermalization design of middle wavelength infrared optical system with multiple lenses is introducedand an athermalized middle wavelength infrared dualFOV optical system was designed.The optical system contains a zoom objective system and a secondary imaging systemand adopts the technology of passive athermalization optical design.The zoom function is achieved by moving a set of optical components (2 elements) axially.A passive athermalization optical design is presented by using crystal materials Si and Geand two aspherical surfaces.The results show that the infrared zoom optical system in the 4.5~5.1 μm wavelength possesses a compact structure100% cold shield efficiencyand better image quality in the temperature range from -60 ℃ to +70 ℃thereby the correctness and feasibility of the design method are proved.

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    CHEN Jianfa, WANG Helong, LIU Xin. A Passive Optical Athermalization Design of Middle Wavelength Infrared Optical System[J]. Electronics Optics & Control, 2013, 20(12): 88

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    Paper Information

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    Received: Jan. 31, 2013

    Accepted: --

    Published Online: Dec. 17, 2013

    The Author Email:

    DOI:10.3969/j.issn.1671-637x.2013.12.021

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