Design the compact dual FOV infrared optical system for the application in a mixed day and night observation equipment47 views
Keywords:Thermal imager; Step-zoom optical system.
The article presents how to calculate and design the compact dual FOV infrared optical system in the spectral region (8-14)µm with only three lenses and a germanium material. The optical system has a fairly simple structure, and the imaging quality of the optical system at the two fields of view is very good, close to the diffraction limit. In particular, with its compact size, the optical system is designed to be suitable for the application of improving mixed day and night observation equipment.
. Phạm Đình Quý, Nguyễn Thu Cầm, Phạm Đức Tuân, Nguyễn Vĩnh Sửu, Trần Tiến Bảo,“Tính toán, thiết kế quang học vật kính đêm cho kính trưởng xe hỗn hợp ngày đêm trên xe chiến đấu bộ binh BMP-1” Tạp chí Nghiên cứu KH&CN QS, số đặc san FEE, (2019).
. Zhang Jian-Ping, Wang Ling-Jie, and Zhang Xin, “Design of dual-FOV refractive/diffractive LWIR optical system,” Proc. SPIE Vol. 6722, (2007) DOI: https://doi.org/10.1117/12.783556
. Dun Xiong, Meng Jun-he, Zhang Zhen , “Althermalised dual FOV telescope,” Journal of Applied Optics, Vol. 32, No. 4, (2011).
. Muhammed Nadeem Akram, Muhammed Hammad Asghar, “Step-zoom dual-field-of-view infrared telescope,” App. Optics. 42(13), (2003). DOI: https://doi.org/10.1364/AO.42.002312
. Allen Mann, “Infrared Optics and zoom lenses,” 2nd edition, SPIE, Bellingham, Washington, (2009). DOI: https://doi.org/10.1117/3.829008
. Tracy A. Sjaardema, Collin S. Smith, and Gabriel C. Birch, “History and revolution of the Johnson criteria,” Sandia National Laboratories, (2015). DOI: https://doi.org/10.2172/1222446
. Malacara D., Malacara Z., “Handbook of Optical Design,” Marcelu ekkerin, (2004).
. M. Herzberger and C. D. Salzberg, “Refractive indices of infrared optical material and color correction of infrared lenses,” J. Opt. Soc.Am. 52, 420 (1962). DOI: https://doi.org/10.1364/JOSA.52.000420
. Marvin J. Weber, “Handbook of Optical Materials,” CRC Press, (2002).
. Optical Design Program User's Manual, 19/8/2014, Zemax.
. Kidger, “M. Fundamental Optical Design”, SPIE Press, Bellingham, WA, pp 25-68, (2002). DOI: https://doi.org/10.1117/3.397107