Advantages and applications of white light cameras
White light cameras, like infrared cameras, are part of the night vision surveillance cameras, but their application areas, without infrared cameras, are rarely seen. The biggest difference with the white light camera infrared camera is the use of different infrared light board, machine is using infrared light board, and white machine are using white light board. Through the infrared auxiliary lighting, realize the vision function of the camera, does have many advantages, but its imaging quality is better than a single night color, white light camera.
White light cameras in the night through white light plate to supplement the light source, can produce full color images, this is the infrared night vision products can not achieve effect. But in real life, white light cameras do not use much. They are mostly used in road traffic and community entrance and exit. They are mainly used to shoot license plates and identify license plate information. White light camera and infrared camera have night vision distance limit, generally in the 20 meters range of color imaging effect is better, mainly depends on the light plate irradiation distance, and the current environment of illumination.
1: advantages of white light cameras
Full-color monitoring. The biggest advantage of white light camera in night surveillance is that full color surveillance can be carried out, and infrared camera can only generate black and white images at night.
A dual-purpose. The white light used by white light cameras, which emit visible light at night, not only provides sufficient light for camera imaging, but also provides lighting sources for passers-by.
Low power consumption, long service life. LED white light lamp belongs to the cold light source. During the process of light emitting, it has less heat generation and lower power consumption, while the infrared camera uses more heat and shorter service life.
Two: white light camera deficiencies
Poor concealment. The white light emitted by white light camera at night is visible light. The spectral frequency range is within the range of human eye recognition, and it is easy to expose the target in the process of monitoring, and the concealment is poor.
Light pollution is serious. Due to the visibility of white light, it is not suitable for monitoring and controlling in the residential area. The white light issued by the work has a certain influence on the residents' living in the District, and there is a large amount of light pollution.