In the infrared region, the band that is most beneficial to human body is the band range of 4 to 14, which is collectively called "fertility light" in the medical field, because this infrared band can promote the growth of life, and this infrared ray has a good effect on activating cell tissue and blood circulation, which can improve human immunity and strengthen human metabolism.
2. Application of infrared ray in remote control equipment
The infrared product related to our life is the remote control. With the progress of society, more and more household appliances are equipped with remote controllers, which will be equipped with infrared emission tubes. When it is opposite to the infrared receiving end of the appliance, the remote control function is realized.
3. The application of infrared ray in switch
Almost all switches involving inductive force will apply infrared rays, which are collectively called infrared switches. It is divided into active switch and passive switch. The active infrared switch consists of an infrared emitting tube and an infrared receiving tube. When the infrared receiving tube receives the signal from the transmitting tube, the electrical appliance will be turned off. When something blocks the connection between the two, the electric appliance will start. Passive infrared switch takes human body as infrared source (the temperature of human body is usually higher than the ambient temperature). When infrared radiation is detected, the electrical appliance will start. There are also common infrared sensing faucets that also apply this principle.
4. Application of infrared data association
Nowadays, many electronic devices are equipped with infrared ports for wireless transmission, which reduces the space occupied by wired transmission. This can be reflected from wireless internet access or mobile phone through infrared internet access.
5. Application of infrared ray in security field.
Infrared alarm is a kind of safety equipment, and infrared rays are often used for safety. A complete safety device consisting of an infrared transmitter and an infrared receiver. The transmitter and receiver form an invisible security wall. When people pass through this wall, the connection between the transmitter and the receiver will be blocked, and the alarm host will be started, thus achieving the function of anti-theft.
6. Application of infrared ray in investigation.
Most of the applications in detectives come from military applications, such as night monitoring through infrared rays. Infrared night vision device is an instrument that infrared rays are often used by detectives. Or reconnaissance satellites can detect the information on the ground by infrared rays, or detect the temperature change by infrared rays, so as to detect the engine tail flame temperature of missiles and achieve the function of air defense.