Hongqiang Zhao, Xingxiang Zhang, Duo Wang, Guoling Bi, Tianjiao Fu. Optical-mechanical system design of SAR real-time imaging optical processor[J]. Opto-Electronic Engineering, 2022, 49(9): 210421
- Opto-Electronic Engineering
- Vol. 49, Issue 9, 210421 (2022)
Fig. 1. Schematic diagram of 4f system
Fig. 2. Schematic diagram of SAR optical processor
Fig. 3. Structure diagram and image quality evaluation diagram of Fourier transform lens. (a) Structure chart; (b) Spot diagram; (c) MTF figure; (d) Wavefront figure
Fig. 4. Optical system structure diagram and image quality evaluation diagram. (a) Structure chart; (b) MTF chart
Fig. 5. Structure of Fourier transform. (a) 2f lens group in the front; (b) 2f lens group in the back
Fig. 6. Structural diagram of flexible lens base
Fig. 7. Cloud diagram of front 2f lens group deformation. (a) X direction; (b) Y direction; (c) Z direction
Fig. 8. System structure of 4f optical processor
Fig. 9. First two modal cloud images of the whole structure. (a) First modal cloud image; (b) Second modal cloud image
Fig. 10. 4f system device diagram and simulation result diagram. (a) Device diagram; (b) Simulation result diagram
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Table 1. SLM specifications
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Table 2. Optical parameters of Fourier transform lens
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Table 3. Properties of common opto-mechanical structural materials
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