Infrared and Laser Engineering, Volume. 51, Issue 11, 20220430(2022)
Design of long-wave infrared fisheye staring optical system
Figures & Tables(13)
Fig. 3. Optical scheme of a chief ray passing the negative meniscus lens
Fig. 9. Comparison of the real projection scheme to an ideal equidistance projection scheme
Table 1. Parameters of the system
View tableView in ArticleTable 1. Parameters of the system
Parameter Value Wavelength band/µm 8-12 Effective focal length/mm 1.97 Relative aperture 1∶1 Image surface size/mm 6.1 Field of view/(°) $ \pm 100$
Table 2. Structure parameters of the lens
View tableView in ArticleTable 2. Structure parameters of the lens
Lens Radius/mm Thickness/mm Glass type Diameter/mm 1 (Aspheric) 21.085 2.856 Ge 15.461 2 12.583 8.950 11.148 3 −36.081 1.050 Ge 3.949 4 (Aspheric) 21.848 3.112 3.708 5 −49.954 1.935 Ge 4.598 6 (Aspheric) −14.386 2.134 4.805 stop Infinity 0.852 3.228 8 −17.884 1.335 Ge 3.406 9 (Aspheric) −13.896 4.733 3.677 10 21.847 2.00 Ge 4.562 11 (Aspheric) 696.584 3.345 4.372 IMA Infinity 3.058
Table 3. Compensation amount of back focal length at different temperature
View tableView in ArticleTable 3. Compensation amount of back focal length at different temperature
Temperature/℃ Back focal length/mm Shift distance/mm −40 3.38 +0.04 （Right） 20 3.34 0 60 3.31 −0.03 （Left）
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Jiyan Zhang, Liting Sun, Teng Qin. Design of long-wave infrared fisheye staring optical system[J]. Infrared and Laser Engineering, 2022, 51(11): 20220430
Paper Information
Category: Optical design
Received: Jun. 22, 2022
Accepted: --
Published Online: Feb. 9, 2023
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