Infrared and Laser Engineering, Volume. 51, Issue 3, 20210407(2022)
Design of two-dimensional image space scanning cooled infrared optical system with tilt mirror
Figures & Tables(8)
Table 1. Design parameters of the optical system
View tableView in ArticleTable 1. Design parameters of the optical system
No. Type of surface Thickness/mm Tilt x/（°） Tilt y/（°） 1 Standard 170 2 Coordinate break 0 −41 2 3 Coordinate break 0 −41 2 4 Coordinate break −142.554 90 0 5 Coordinate break 0 45 0 6 Optical window 7 Coordinate break 22 −45 0 8 Object lens 9 Coordinate break 0 −90 0 10 Coordinate break 0 41 −2 11 Coordinate break 0 41 −2 12 Coordinate break 0 −41 2 13 Scanning mirror 14 Coordinate break 0 −41 2 15 Image lens
Table 2. Performance of the system under different tilt angles
View tableView in ArticleTable 2. Performance of the system under different tilt angles
Tilt mirror angle Optical axis direction MTF (17 lp/mm) Window pass ratio Azimuth 2°, pitch -4° Azimuth 4.9°, pitch -14.7° 0.4 85.74% Azimuth 2°, pitch -2° Azimuth 5.02°, pitch -7.45° 0.58 99.43% Azimuth 2°, pitch 2° Azimuth 5.37°, pitch 7.2° 0.57 98.23% Azimuth 2°, pitch 4° Azimuth 5.61°, pitch 14.43° 0.4 78.64%
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Minda Xu, Xue Tian, Rui Yao, Haosu Xiao, Cheng Chen. Design of two-dimensional image space scanning cooled infrared optical system with tilt mirror[J]. Infrared and Laser Engineering, 2022, 51(3): 20210407
Paper Information
Category: Optical design
Received: Jun. 15, 2021
Accepted: --
Published Online: Apr. 8, 2022
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