Yang Hu, Qingfeng Cui, Lin Sun, Bo Zhang, Mingxu Piao. Optical-Digital Joint Design of a Dual-Waveband Infrared Refractive-Diffractive System[J]. Acta Optica Sinica, 2020, 40(14): 1422002
- Acta Optica Sinica
- Vol. 40, Issue 14, 1422002 (2020)
Fig. 1. Model analysis principle
Fig. 2. Diffraction efficiency. (a) When the center wavelength is in long waveband; (b) when the center wavelength is in medium waveband
Fig. 3. MTF graphs of traditional design method. (a) MTF of medium wave infrared; (b) MTF of long wave infrared
Fig. 4. Spot diagram obtained by traditional design method
Fig. 5. Optical system layout of proposed design method
Fig. 6. MTF graphs of proposed design method. (a) MTF of medium wave infrared; (b) MTF of long wave infrared
Fig. 7. Spot diagram of proposed design method
Fig. 8. Reconstruction results. (a) Unprocessed image; (b) reconstructed image
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Table 1. Design specifications of designed system
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Table 2. Blurred spot root-mean-square radius and variance obtained by two optimization methods
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Table 3. Objective assessment function value
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