Fast objectives for thermal viewers

Лапо Л.М., Совз И.Е., Сокольский М.Н. Светосильные объективы для тепловизионных приборов // Оптический журнал. 2009. Т. 76. № 10. С. 5–10.

Lapo L.M., Sovz I.E., Sokolskiy M.N. Fast objectives for thermal viewers [in Russian] // Opticheskii Zhurnal. 2009. V. 76. № 10. P. 5–10.

L. M. Lapo, I. E. Sovz, and M. N. Sokol’skiĭ, "Fast objectives for thermal viewers," Journal of Optical Technology. 76 (10), 593-598 (2009). https://doi.org/10.1364/JOT.76.000593

This paper discusses the requirements imposed on fast objectives for thermal viewers that operate in combination with detector arrays in the IR region (λ=8-14μm). Based on third-order aberration theory, a technique is proposed for calculating germanium lens objectives. Optical layouts and characteristics are given for a number of specific objectives with relative apertures of D:f′=1:0.75-1:0.8 and angular fields of view of 2ω=10°-60°, developed and fabricated at OAO LOMO.