Fig. 1. Several typical stellar spectral diagrams^[16]. (a) A6-type stellar spectrum chart; (b) G0-type stellar spectrum chart; (c) M0-type stellar spectrum chart

Fig. 2. Normalized blackbody spectral curves for 3000‒9000 K within 500‒800 nm

Fig. 3. Schematic diagram of spectral distribution on DMD array surface

Fig. 4. Schematic diagram of DMD zoning modulation

Fig. 5. Schematic diagram of system composition

Fig. 6. Light path of collimating beam expanding system

Fig. 7. Light paths of system. (a) 2D light path of system; (b) 3D light path of system

Fig. 8. Image quality of optical system

Fig. 9. Experimental system

Fig. 10. Initial spectral curve output by the system

Fig. 11. Spectral test results of random 5 channels

Fig. 12. Test results at T=9000 K

Fig. 13. Test results at T=7000 K

Fig. 14. Test results at T=5000 K

Fig. 15. Test results at T=3000 K

Fig. 16. Comparison of simulated and real stellar spectra (sub-region 1)

Fig. 17. Spectral simulation curves

Fig. 18. Stability of system during 10 h