Fig. 1. Imaging principle of mid-infrared multi-aperture imaging system

Fig. 2. Schematic diagram of relay lens imaging

Fig. 3. Preparation process of optical fiber bundle. (a) Fiber drawing; (b) multifilament drawing; (c) multifilament stacking

Fig. 4. Image transmission fiber bundle and its local optical image. (a) Image of fabricated fiber bundle; (b) optical image of partial end face of fiber bundle

Fig. 5. Experimental photo of fiber bundle imaging

Fig. 6. Optical fiber beam imaging experiment. (a) Result of fiber bundle imaging; (b) enlarged view of image plane

Fig. 7. Experimental photo of multi-aperture fiber bundle imaging

Fig. 8. Experimental results of multi-aperture fiber bundle imaging