What Is The Working Principle Of An Infrared Camera?

The working principle of an infrared camera is that the photosensitive part can receive signals transmitted by infrared radiation. The so-called infrared rays are the parts of the spectrum other than the red light of visible light. They have the characteristics of light but are not visible to human eyes, so they are called infrared rays.
Today's cameras are all digital cameras. The photoelectric sensor of the digital camera can also sense infrared rays and form an electric current, causing interference to the photos taken. Normally, an infrared filter is added in front of the sensor to filter out the infrared rays, so that the photos appear fresh and translucent.
In contrast, the infrared camera emphasizes the reception of infrared rays. After analog-to-electrical conversion, it is displayed as a visible light image on the display screen, which is the structure of an infrared night vision device. The image is recorded in an electronic file, which is an infrared photo.
All objects above absolute zero will radiate, but the higher the temperature, the more radiation. In order to photograph lower-temperature scenery, you can use active infrared, which is to illuminate it with an infrared lamp, and then use an infrared camera to capture the reflected infrared rays. .