Faqiang Zhang, Bin Feng, Hongshun Li. Research on Athermalization Design of Infrared Optical System Based on Wavefront Coding[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2208001
- Laser & Optoelectronics Progress
- Vol. 58, Issue 22, 2208001 (2021)
Fig. 1. Optical path structure of optical system. (a) Overall structure; (b) rays at focal plane
Fig. 2. MTF curves of ordinary infrared optical systems at different temperatures. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃
Fig. 3. Data processing diagram
Fig. 4. Optical path structure of wavefront coding infrared optical system. (a) Overall structure; (b) rays at focal plane
Fig. 5. MTF curves of wavefront coding infrared optical systems at different temperatures. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃
Fig. 6. PSF of ordinary infrared optical system and wavefront coding infrared optical system. (a) +20 ℃; (b) -40 ℃; (c) +60 ℃
Fig. 7. Imaging results of ordinary infrared optical system and wavefront coding infrared optical system. (a) Imaging diagram of ordinary system; (b) intermediate diagram of coding system; (c) restoration diagram of coding system
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Table 1. Indicator of optical system
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Table 2. Structural parameters of optical system
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Table 3. Structural parameters of wavefront coding infrared optical system
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