Fig. 1. Schematic diagram of homogenization of light by microlens array

Fig. 2. Deviation values of image height and exit angle under different tilt angle and lateral shift. (a) Image height deviation; (b) exit angle deviation

Fig. 3. Optical path design of integration lens

Fig. 4. Figures of image quality evaluation for integration lens. (a) SPT; (b) distortion; (c) MTF; (d) geometric encircled energy

Fig. 5. Simulation diagram of microlens array optical system

Fig. 6. Simulation diagrams of energy distribution of image spot. (a) Energy distribution of receiving image;(b) intensity distribution in x direction; (c) intensity distribution in y direction

Fig. 7. Simulation diagrams of energy distribution of image spot with certain tilt angle and lateral shift. (a) Energy distribution in receiving image; (b) energy distribution in x direction; (c) energy distribution in y direction

Fig. 8. Principle block diagram of spot homogenization test

Fig. 9. Experimental diagram of beam homogenization test

Fig. 10. Measured energy distributions of image spot. (a) Picture of image spot; (b) energy distribution in x direction; (c) energy distribution in y direction

Fig. 11. Principle block diagram of field of view test

Fig. 12. Experimental diagram of field of view test

Fig. 13. Measured image spot under different field of view. (a) Picture of image spot under lower edge field of view; (b) picture of image spot under upper edge field of view

Fig. 14. Diagram of overlapping area between image spot and detector