Fig. 1. System detection schematic diagram

Fig. 2. Laser spot space projection model

Fig. 3. Structure of axis consistency detection optical system

Fig. 4. MTF and spot diagram of long-wave infrared

Fig. 5. MTF and spot diagram of mid-wave infrared

Fig. 6. MTF and spot diagram of visible-near infrared and shortwave infrared

Fig. 7. Vertical axis aberration diagram

Fig. 8. Overall structure of the axis alignment test system

Fig. 9. Three-dimensional structure of primary mirror support

Fig. 10. Three-dimensional structure of mirror support

Fig. 11. Optical platform distribution of light source and detector

Fig. 12. Three-dimensional model of visible light source module

Fig. 13. Supporting structure of photothermal conversion target

Fig. 14. Physical image of system focal length measurement

Fig. 15. Diagram of reciprocating motion positions of the guide rail

Fig. 16. Experimental measurement accuracy detection