Infrared thermal imaging cameras and low-light night vision devices have been used in the professional fields of military, criminal investigation, and individual soldier transportation. The price of products is also much more expensive. The low-light night vision device has requirements for ambient illumination. It cannot be imaged without the natural light illumination of the moonlight, and the monitoring distance is limited. It is more difficult to exceed 1000 meters. Moreover, under strong light, the micro-light tube is easily burned out and cannot be used during the day.
Infrared thermal cameras can be divided into cooled and uncooled, with good fogging ability. The thermal imaging cameras can reach a distance of 40 kilometers and are often used in the military field. And the requirements for the use environment are high, and the temperature difference between the target and the surrounding environment is required to be well imaged. Affected by the ambient temperature, the summer imaging effect is poor. However, because the laser camera laser source is invisible to the human eye, it has certain concealed advantages and night vision monitoring distance technology advantages. In recent years, it has gradually been used in public, inspection, and legal techniques, forensic field video investigation and evidence, and TV station journalists special video. Reports and military fields are widely adopted.
It can be seen that in the field of security night vision monitoring, the application advantages of laser cameras are very obvious, especially in highways, high-speed railways, public security police, energy and power, environmental protection and water conservancy, safe cities, airport ports, oilfield oil depots, long-distance pipelines, Large-scale factory mining areas, border defense lines, maritime fishery administration, ecological protection, military bases, etc.