Infrared and Laser Engineering, Volume. 50, Issue 3, 20200220(2021)
Passive athermal integrated design and verification analysis for the optical lens of aerial camera
Figures & Tables(17)
Fig. 2. Schematic diagram of heat elimination part of the optical system
Fig. 5. Schematic diagram of finite element analysis of heat dissipation part
Fig. 7. Schematic diagram of heat dissipation effect verification test
Table 1. [in Chinese]
View tableView in ArticleTable 1. [in Chinese]
Project Index f/mm 130 Half-field/(°) 38 MTF@100 lp/mm ≥0.30 Working temperature/℃ 20±5
Table 2. [in Chinese]
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Lens R Spacing Material 1# 154.651 59.501 11.835 19.725 H-FK61 2# 90.708 1018.40 20.71 20.2 H-ZLAF53B 3# 512.971 37.814 7.89 32.547 H-FK61 Glued mirror 1 4# 162.108 −66.032 13.808 0 H-FK61 5# −66.032 105.814 4.931 5.041 H-ZBAF16 6# 83.921 −60.365 14.794 25.581 H-FK61 Glued mirror 2 7# −255.57 −36.835 22.684 0 H-FK61 8# −36.835 −77.799 6.904 0.2 H-LAK12 9# 136.937 −172.60 23.671 0.2 H-FK61 10# 929.987 84.166 7.89 0.592 H-LAF10LA 11# 84.166 129.24 14.7945 7.061 H-ZF5 12# −56.503 −165.64 10.849 0.2 H-LAFL5 13# 2639.82 −230.89 29.588 H-ZF52A
Table 3. [in Chinese]
Table 4. [in Chinese]
View tableView in ArticleTable 4. [in Chinese]
Temperature/℃ 15 16 17 18 19 20 21 22 23 24 25 Variation of spacing 1 −0.016 −0.013 −0.01 −0.007 −0.003 0 0.003 0.007 0.01 0.013 0.016 Variation of spacing 2 0.016 0.013 0.01 0.007 0.003 0 −0.003 −0.007 −0.01 −0.013 −0.016
Table 5. [in Chinese]
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Temperature/℃ MTF after heat elimination compensation design 15 
20 
25 
Table 6. [in Chinese]
View tableView in ArticleTable 6. [in Chinese]
Temperature/℃ Displacement of lens 5/μm Displacement of lens 6/μm Distance variation between lenses 5 and 6/μm 15 −2.506 −19.14 −16.634 17 −1.277 −11.5 −10.223 19 −0.4952 −3.82 −3.3248 20 0 0 0 21 0.4984 3.848 3.3496 23 1.492 11.51 10.018 25 2.497 19.19 16.693
Table 7. [in Chinese]
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Temperature/℃ 15 17 19 20 21 23 25 Variation of mirror spacing D/μm Theoretical value −16.634 −10.223 −3.324 0 3.349 10.018 16.693 Measured value −17.333 −10.8241 −3.726 0 3.5476 10.415 15.842 Difference/μm −0.699 −0.6011 −0.402 0 0.1986 0.397 −0.851
Table 8. [in Chinese]
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Temperature/℃ System wavefront and MTF after heat dissipation 15 
20 
25 
Table 9. [in Chinese]
View tableView in ArticleTable 9. [in Chinese]
Temperature/℃ System wavefront and MTF after heat dissipation 15 
20 
25 
Table 10. [in Chinese]
View tableView in ArticleTable 10. [in Chinese]
Temperature/℃ System wavefront and MTF after heat dissipation 15 
20 
25 
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Chunyu Wang, Cong Wang, Jinchuan Niu, Yinglong Zhao, Shengjie Zhang. Passive athermal integrated design and verification analysis for the optical lens of aerial camera[J]. Infrared and Laser Engineering, 2021, 50(3): 20200220
Paper Information
Category: Optical design
Received: Jun. 5, 2020
Accepted: --
Published Online: Jul. 15, 2021
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