Fig. 1. System block diagram of the UV alarm sensor

Fig. 2. Schematic of image intensifier tube

Fig. 3. The overall framework of sensor system

Fig. 4. Structural design decomposition

Fig. 5. Schematic of the partial structure of lens

Fig. 6. Schematic of system circuit

Fig. 7. Schematic of power circuit

Fig. 8. Stress analysis results

Fig. 9. Deformation analysis results

Fig. 10. Photos of the UV alarm sensor