Infrared and Laser Engineering, Volume. 49, Issue 3, 0314002(2020)
Realized large field of view infrared imaging system of single lens with external field splicing
Figures & Tables(12)
Table 1. Basic parameters of the optical system
View tableView in ArticleTable 1. Basic parameters of the optical system
Parameter Value Wavelength/μm 3.7−4.8 Aperture/mm 20 Focal length/mm 40 F number2 Full field of view 21.74°×17.46°(27.88°)
Table 2. System structure parameters
View tableView in ArticleTable 2. System structure parameters
Serial number Radius Thickness Surface type Glass 1 24.595 9.72 Sphere Si 2 39.335 3.36 Sphere 3 56.817 10 Sphere Ge 4 14.881 10.49 Asphere 5 1 620.865 6.17 Sphere Si 6 −40.232 23.58 Sphere 7 −54.727 9.86 Asphere Ge 8 −102.979 3.19 Sphere 9 −63.085 7.54 Sphere Si 10 −28.932 9.79 Sphere 11 −43.21 4 Sphere Ge 12 −134.589 2 Asphere 13 1 051.776 6.66 Sphere Si 14 −49.914 5.9 Sphere 15 302.679 4 Sphere Ge 16 Infinity 5 Sphere
Table 3. Comparative analysis of two splicing methods
View tableView in ArticleTable 3. Comparative analysis of two splicing methods
Object space splice Advantages Disadvantages Same points "Cross 1" No loss of frame frequency, no motion mechanism Two optical systems，two thermal imagers，two processing systems；relatively complex structure Exist of blind areas or overlapping field of view Front rotating mirror and mirror One optical system，one thermal imager，one processing system；simple splicing Loss of frame frequency, need motion mechanism
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Qiusha Shan, Xiuqin Su, Jing Duan, Liang Zhou, Kai Liu, Peipei Yan, Kai Jiang. Realized large field of view infrared imaging system of single lens with external field splicing[J]. Infrared and Laser Engineering, 2020, 49(3): 0314002
Paper Information
Received: Nov. 5, 2019
Accepted: --
Published Online: Apr. 22, 2020
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