Fig. 1. Schematic diagram of self-collimating

Fig. 2. Schematic diagram of self-collimating test system

Fig. 3. Over focal curve of a space camera tested by parallel light tube

Fig. 4. Simulation over focal curve of self-collimating MTF test system

Fig. 5. Comparison of over focal curves

Fig. 6. Focal layout plan for camera detected by self-collimating principle

Fig. 7. Simplified model of self-collimating optical path

Fig. 8. Comparison of MTF drop curves

Fig. 9. Image displacement caused by flat glass

Fig. 10. Schematic diagram of the confocal splicing of target and detector

Fig. 11. Test over focal curve of self-collimating test system on a space camera