Low-light camera advantages:
Compared to ordinary illumination camera <br> <br> Obviously the camera illumination advantage is its low according to the characteristics, even in case of poor light, clear color images can also be achieved.
Compared <br> <br> compared to infrared cameras and infrared cameras, the advantages of low-light cameras are reflected in the following aspects.
Good stability The infrared camera needs to add an infrared lamp. The infrared lamps mainly include LED infrared lamps, array LED infrared lamps and laser infrared lamps. Their common feature is their high heat output and short life. After the infrared lamp is damaged, the entire camera cannot be used, and due to a large amount of heat, the internal temperature of the camera is too high, and a phenomenon of “temperature drift†of the electronic device occurs, which affects the stability of the entire camera.
Image is color In scenes with a large amount of infrared light, there is no way to achieve accurate white balance, so general color cameras have infrared filters before the Sensor to filter the infrared light. Infrared cameras have a large amount of infrared light when the infrared lamp is turned on. At this time, infrared filters must not be used to filter out infrared light. Only full-pass filters can be used and black-and-white images can be switched.
The brightness of the image is uniform. Infrared cameras in the market generally can only illuminate the central part of the entire image scene, causing the center of the entire image to have high brightness or even overexposure, and the surrounding images are very dark or even black, which is called the “flashlightâ€. phenomenon". Some cameras claim to have resolved the "flashlight phenomenon," but they have also reduced the power of the infrared light or reduced the brightness of the image based on the brightness of the image in the center area. The problem of uneven brightness of the real image has not been solved.
There is no infrared out-of-focus phenomenon. The wavelength band of infrared light is longer than that of visible light, and there is a slight difference between the focus point of color image and black-and-white image. As a result, the image is clear during the day without the activation of the infrared light. When the infrared light is turned on at night, the image is blurred and the loss of detail is serious. Some cameras now use the auto focus function to solve this problem, but due to the inherent defects of the existing auto focus function, such as defocusing on a specific scene, it cannot be applied well.
Compared to ordinary illumination camera <br> <br> Obviously the camera illumination advantage is its low according to the characteristics, even in case of poor light, clear color images can also be achieved.
Compared <br> <br> compared to infrared cameras and infrared cameras, the advantages of low-light cameras are reflected in the following aspects.
Good stability The infrared camera needs to add an infrared lamp. The infrared lamps mainly include LED infrared lamps, array LED infrared lamps and laser infrared lamps. Their common feature is their high heat output and short life. After the infrared lamp is damaged, the entire camera cannot be used, and due to a large amount of heat, the internal temperature of the camera is too high, and a phenomenon of “temperature drift†of the electronic device occurs, which affects the stability of the entire camera.
Image is color In scenes with a large amount of infrared light, there is no way to achieve accurate white balance, so general color cameras have infrared filters before the Sensor to filter the infrared light. Infrared cameras have a large amount of infrared light when the infrared lamp is turned on. At this time, infrared filters must not be used to filter out infrared light. Only full-pass filters can be used and black-and-white images can be switched.
The brightness of the image is uniform. Infrared cameras in the market generally can only illuminate the central part of the entire image scene, causing the center of the entire image to have high brightness or even overexposure, and the surrounding images are very dark or even black, which is called the “flashlightâ€. phenomenon". Some cameras claim to have resolved the "flashlight phenomenon," but they have also reduced the power of the infrared light or reduced the brightness of the image based on the brightness of the image in the center area. The problem of uneven brightness of the real image has not been solved.
There is no infrared out-of-focus phenomenon. The wavelength band of infrared light is longer than that of visible light, and there is a slight difference between the focus point of color image and black-and-white image. As a result, the image is clear during the day without the activation of the infrared light. When the infrared light is turned on at night, the image is blurred and the loss of detail is serious. Some cameras now use the auto focus function to solve this problem, but due to the inherent defects of the existing auto focus function, such as defocusing on a specific scene, it cannot be applied well.
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