Is the infrared ray of the camera harmful to human body?

Under normal circumstances, high-power infrared rays can make people feel hot, that is, heat is radiated into space in the form of infrared rays, which will not cause any harm to people. Of course, burns are "irradiated" by too strong infrared rays or have been said to have high energy, which should be "another matter". It's different if it's ultraviolet light. After the human body is exposed to high energy, it may appear "solar dermatitis, pigmentation, and even be induced."

There is infrared light in the sunlight during the day, but only visible light is reflected in people's eyes. The popularity of infrared surveillance cameras is not a year or two, and the utilization rate is still growing rapidly. Practice has proved that the problem you are worried about will not happen.

Also, the red halo you see is not infrared, but the reaction after the infrared surveillance camera automatically turns on the infrared lamp to make it charged. The infrared ray emitted by the infrared camera is invisible light, which can only be sensed by the camera with low illumination.

When it comes to radiation and infrared light, it has nothing to do with it. If there is, you can only blame the camera. All electronic devices radiate, including televisions, refrigerators and computers. These are much bigger than the radiation of a small camera, so there is no need to worry about them.