Open AccessDesign of an infrared dual-band search and tracking system operating in widen temperature range
Author(s) -
Shen Man-De,
Ren Huan-Huan
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.090702
Subject(s) - infrared , optics , tracking (education) , computer science , transmission (telecommunications) , multi band device , harmonic , range (aeronautics) , quality (philosophy) , materials science , optoelectronics , physics , telecommunications , acoustics , quantum mechanics , antenna (radio) , psychology , pedagogy , composite material
Because a harmonic diffractive optical element has special achromatism and athermalization, it can be applied to infrared dual-band search and tracking optical system. In this paper, we make the device that can be used in the wavelength ranges 3.7—4.8 μm and 8.7—11.3 μm; It has an efficient focal length 200 mm, the F/number 2.5, the full field of view is 5°. The environment temperature can be changed between -80 ℃—200 ℃. The practical design shows that the system not only shows good image quality in mid-and long-wave, but also the advantages of compact structure, high rates of transmission and athermalization.