Mailing Xing, Yiliang Liu, Jingyang Pei, Bin Hu, Tianyuan Yang. A large aperture cryogenic lenses designed and verified for space-based infrared sensor[J]. Infrared and Laser Engineering, 2020, 49(4): 0414002
- Infrared and Laser Engineering
- Vol. 49, Issue 4, 0414002 (2020)
Fig. 1. Optical system layout
Fig. 2. Diagrams of optical system design results
Fig. 3. Lens holder with stress-free design
Fig. 4. Lenses mount connected to lenses barrel by stress-free design
Fig. 5. Mode analysis result of lenses assembly
Fig. 6. Lenses on vibration test
Fig. 7. Digital number and gray show of the pinhole image after vibration test
Fig. 8. Ensquared energy test of the lenses at 200 K
Fig. 9. Digital number and gray show of the pinhole image at 200 K
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Table 1. Structure parameters of the optical system
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Table 2. Design result of the optical system
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Table 3. Test result of lens temperature
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