Fig. 1. Structure of the MWIR staring imaging system

Fig. 2. Telecentric beam path in image space

Fig. 3. MTF of each sub FOV unit

Fig. 4. Field lens array

Fig. 5. Figures of system vignetting

Fig. 6. Polarization independent LC shutter array

Fig. 7. Schematic diagram of liquid crystal devices in a liquid crystal shutter array

Fig. 8. Zemax simulation of a large FOV infrared staring imaging system based on liquid crystal grating， where different colors represent the light in different sub apertures

Fig. 9. Actual aperture light transmission diagram of the first surface of the rear lens group

Fig. 10. Rear lens group structure

Fig. 11. MTF of each FOV unit

Fig. 12. Distortion figures of each FOV unit

Fig. 13. Reverse tracing of Narcissus

Fig. 14. Tilted LC shutter array

Fig. 15. Reverse tracking after tilting the LC shutter array

Fig. 16. MTF of the center and left aperture tilting

Fig. 17. Image of NITD distribution on infrared detectors