SHEN Liang-ji, FENG Zhuo-xiang. Athermal design of refractive/diffractive hybrid infrared optical system working at 3.7μm～4.8μm[J]. Journal of Applied Optics, 2009, 30(4): 683-687.
Citation: SHEN Liang-ji, FENG Zhuo-xiang. Athermal design of refractive/diffractive hybrid infrared optical system working at 3.7μm～4.8μm[J]. Journal of Applied Optics, 2009, 30(4): 683-687.
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Athermal design of refractive/diffractive hybrid infrared optical system working at 3.7μm～4.8μm

  • Xi’an Institute of Applied Optics,Xi’an 710065,China

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  • A method to design the hybrid athermal infrared optical system is studied. A design concept of the mutual compensation of the thermal dispersion and chromatic dispersion was introduced in the design, in which the equations that the athermal design should meet are acted as a constraint condition in the optimization. A refractive/diffractive hybrid athermal infrared optical system, whose cold shield efficiency is 100%, F/number is 2, field of view is 5, effectivefocal length is 70mm and working wavelength is 3.7m～4.8m, is designed. The image quality of the system approaches the diffraction limit at the working temperature of -40℃～60℃. The system can be compatible with the high-resolution cooled staring focal plane detector whose pixel size is 15m.
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  • ［1］TAMAGAWA Y.Multilens system with design with an athermal chart［J］. Appl. Opt.,1994,33(34):8009-8013.
    ［2］BEHRMANN G P, BOWEN J P. Influence of tem-perature on diffracttive lens performance［J］. Appl. Opt., 1993,32(14):2483-2489.
    ［3］焦明印,冯卓祥.采用衍射元件实现消热差的混合红外光学系统［J］.光学学报,2001,21(11):1364-1367.
    JIAO Ming-yin,FENG Zhuo-xiang.Athermalized infrared hybrid optical system by employing diffractive element［J］.Acta Optica Sinica, 2001,21(11):1364-1367.(in Chinese with an English abstract)
    ［4］郭永洪,沈忙作,陆祖康. 折射/衍射红外光学系统的消热差设计［J］.光学学报,2000,20(10):1392-1395.
    GUO Yong-hong,SHEN Mang-zuo,LU Zu-kang. Athermal design for infrared diffractive/refractive optical system［J］.Acta Optica Sinica,2000,20(10):1392-1395.(in Chinese with an English abstract)
    ［5］LAIKIN M. Lens design［M］.3rd ed. New York: Marcel Dekker Inc.,2001.
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