Fig. 1. Diffraction diagram of transmission grating

Fig. 2. Geometric projection diagram of laser detection

Fig. 3. Simulation diagram of wavelength and angle resolution

Fig. 4. Grating diffraction images under different incident angles

Fig. 5. Relationship between spot center positions of level 0 and level 1 at different incident angles

Fig. 6. Center coordinate differences between level 0 and ± 1

Fig. 7. Coordinate differences between two adjacent levels

Fig. 8. Laser alarm schematic diagram of binocular CMOS image sensor

Fig. 9. Laser alarm physical drawing of binocular CMOS image sensor

Fig. 10. Laser spot images detected by two detectors

Fig. 11. Test results