Fig. 1. System composition principle

Fig. 2. Optical element transmittance and thickness analysis. (a) Transmittance analysis; (b) thickness analysis

Fig. 3. Transmittance difference in the presence of different scanning intervals

Fig. 4. System flow chart

Fig. 5. Dual motor synchronous control experiment

Fig. 6. Motor synchronous control. (a) Parallel control; (b) cross-coupling control

Fig. 7. Experimental data of transmittance simulation