Почему инфракрасные объективы широко используются в системах видеонаблюдения? 

Infrared lens is a common technology in security monitoring, and its wide application is mainly due to the following reasons

First of all, the infrared lens has the function of monitoring without light source. At night or in a low-light environment, the pictures captured by traditional cameras are often very blurred, or even completely unclear. The infrared lens can still obtain high-quality images even when there is no sunlight or external light during the day by using infrared light sources. This technology is especially important for places that need to be monitored at night, such as parking lots, laneways, public areas, etc.

Secondly, the infrared lens has the characteristics of high light sensitivity. Infrared lenses are very sensitive to light during shooting, even down to the faint infrared light that the human eye cannot detect. This feature enables the infrared lens to track and identify targets in extremely dark places, improving the precision and accuracy of security monitoring. For example, in road monitoring, infrared lenses can quickly capture the vehicle’s driving trajectory, and intelligently judge and record traffic violations.

Again, the infrared lens has the ability of long-distance monitoring. Infrared lenses are usually equipped with telephoto lenses and have certain zoom and focus functions, which can be monitored at a relatively long distance. In some places that need to monitor a large area, such as airports, ports, borders, etc., infrared lenses can provide clear vision images and effectively warn and monitor potential safety hazards. In addition, the zoom function of the infrared lens can also switch and adjust the far and near scenes according to specific needs, which not only improves the monitoring effect, but also saves the cost of installation and maintenance.

Finally, the infrared lens is dustproof, waterproof and shockproof. Security monitoring often needs to operate in harsh environments, including high temperature, low temperature, high humidity, and a lot of dust. The infrared lens usually adopts dustproof, waterproof and shockproof design, which can maintain a stable working condition in various extreme environments and ensure the reliability and stability of the monitoring equipment. This is one of the reasons why infrared lenses are widely used in field monitoring, construction sites, traffic control and other fields.

To sum up, the infrared lens is widely used in security monitoring mainly because it has the advantages of no light source monitoring, high light sensitivity, long-distance monitoring and resistance to harsh environments. With the continuous advancement of technology, the performance and functions of infrared lenses are also constantly improving. It is believed that in the field of security monitoring in the future, infrared lenses will play an increasingly important role.