Fig. 1. Spectral distribution of various light sources

Fig. 2. Spectrum distribution of SC400 series supercontinuum laser produced by Fianium company^[12]

Fig. 3. Basic structure diagram of star simulator

Fig. 4. Evolution of light source in color temperature adjustable star simulator

Fig. 5. STS structure diagram^[19]

Fig. 6. LED array developed by University of Pavado in Italy^[20]

Fig. 7. Multicolor temperature single star simulator^[26]

Fig. 8. LED array developed by Zhejiang University^[33]

Fig. 9. Spectrum adjustable light source based on tungsten bromide lamp^[38]

Fig. 10. Visible ARS structure^[39]

Fig. 11. Short wave infrared ARS structure^[39]

Fig. 12. Simulation of two kinds of target spectrum by ARS system^[39]. (a) Target detection based on spectral Gaussian distribution; (b) fluorescent lamp distribution

Fig. 13. System prototype of spectral tunable radiance standard light source^[40]

Fig. 14. SPLE system diagram based on prism^[41]

Fig. 15. Spectra matching diagrams of SPLE system^[43].（a）Simulated Gaussian distribution spectrum；（b）spectrum of simulated xenon lamp；（c）spectral flattening

Fig. 16. Light source system of spectrum adjustable star simulator based on DMD^[45]

Fig. 17. Simulation results of spectral distribution at 3900, 4800, 6500 K^[45]. (a) Simulation of blackbody spectra at 3900 K; (b) simulation of blackbody spectra at 4800 K; (c) simulation of blackbody spectra at 6500 K