Principles & Applications of Defog Zoom Lens

Defog zoom lens is the fog and haze penetration technology. It can penetrate and get clear pictures and videos in fog and haze weather, to reduce the impact on the bad weather. Generally, it can be divided into electronic defog (algorithmic defog) and optical defog (physical defog). The former one uses visible light imaging and repairs the pictures through algorithm; but the latter one uses penetrated near-infrared light via camera lens when in fog and haze weather, so as to improve the sharpness of pictures.

Whether the electronic defog based on algorithm or the optical defog based on penetrated near-infrared light, it still has many disadvantages, such as image loss and high cost. However, there is a complementary relationship between electronic defog and optical defog.

Under the background of the above seemingly “complementary” technologies, a new defog technology – “electronic + optical dual defog” appeared quietly. Its essence is to improve penetration effect through integrated optical defog. Different companies have different technologies and effects.

As the security industry improved from passive defense to active defense, “electronic + optical dual defog” has been become the current mainstream defog technology. Various manufacturers launched relevant defog camera products. All of our products have adopted “electronic + optical dual defog ” with focal length more than 200mm.

Application of defog technology in video surveillance industry

At this time, we should mention that the original intention of fog and haze penetration technology is not just to penetrate fog and haze.

In fact, the original intention of fog and haze penetration technology is to solve the video problems with low visibility (such as rain, fog, haze, dust, sand, strong light, backlight, etc.). However, because fog and haze appear normally in these weather, it is called defog technology. In other words, the essence of defog technology is to solve the problem of low visibility of video monitoring equipment and improve its visual distance and video sharpness in low visibility. At the same time, we also designed strong light inhibition technology, which can provide clear and high-quality video in a variety of bad situations.

From the current situation, highway or transportation is the most widely used scene of defog technology, and have been derived many traffic safety monitoring systems. In foggy weather, it is a set of comprehensive monitoring system aiming at ensuring safe driving in bad environment based on video presentation. It can automatically monitor and collect road conditions, road environment, abnormal events, traffic conditions and other conditions in real time, to improve driving safety.

Huanyu Vision Defog Technology can be used in monitoring places, such as high point monitoring, forest fire prevention, shipping/maritime operation, roads, railways, airports, sea ports, border guards, squares, scenic spots, stations, large venues, community peripheries, etc. With the continuous progress of science and technology of chip computing speed, the defog system is able to carry out extensive cooperation in various video systems, such as safety and security, emergency management, fire protection, individual combat, robots, aviation and UAV, active and safe auxiliary driving and future unmanned driving, handheld devices (mobile phones), AI glasses and other industries. It can not only bring new ideas to security and traffic safety, but also bring a revolutionary era to all industries.

Based on the defog technology, a considerable number of hardware products have been available in the market, including optical lenses, professional algorithm modules, various hardware of signal transmission and special chips. It can provide different solutions for many fields: fire rescue solutions, landslide rescue solutions, intelligent tourism monitoring solutions, environmental protection intelligent monitoring solutions, road icing early warning and solutions, etc. The availability of these products and solutions has brought more possibilities for defog technology to safety production, transportation, security and rescue in low visibility weather.