Invisible Lighting System for Remote Surveillance

The paper proposed a 2km invisible lighting surveillance system. Long-distance invisible light lighting systems are generally used in maritime rescue and national border defense. The surveillance distance of currently available equipment was about 1 to 1.5km. Therefore, we would provide a set of 2 km invisible lighting surveillance system. The output divergence angle of light source was from 0.9° (narrow) to 12.5° (wide), providing a larger and longer surveillance range. According to the shooting results, the tree trunks, branches and larger leaves could be clearly distinguished in the 500 meters away. At 2km, the outline and features of the building could be clearly identified. In the future, the light source could be integrated with the monitoring system, installed on the PTZ platform, and combined with the automatic patrol mode, so that it could automatically monitor and scan the surrounding environment.