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Infrared LED beads are electronic components that emit infrared light. They are based on semiconductor materials and emit light by injecting current. Unlike ordinary LED chips that emit visible light, infrared LED chips mainly emit infrared light.

The principle of infrared LED beads is to inject current into the semiconductor PN junction in LED materials. When the injected current passes through the PN junction, electron hole recombination occurs, producing light energy.Infrared LED beadsSemiconductor materials typically use indium gallium arsenide (InGaAs) or gallium nitride (GaN).

The application scope of infrared LED beads is very common, and the following are some common application areas:

1. Remote control: Infrared LED beads are commonly used in various remote controls, such as TV remote controls, air conditioning remote controls, car remote controls, etc. The infrared light it emits is encoded to transmit signals and achieve remote control of the device.

2. Security monitoring: Infrared LED beads are commonly used in security monitoring equipment, such as infrared cameras, infrared sensors, etc. By emitting infrared light, monitoring and surveillance can be stopped under low light conditions, improving the effectiveness of nighttime monitoring.

3. Infrared communication: Infrared LED beads can also be used in the field of infrared communication, such as infrared remote controls, infrared data transmission, etc. By emitting and receiving infrared light signals, wireless data transmission and communication are completed.

4. Biomedical applications: Infrared LED beads have common applications in the medical field, such as pulse rate detection, oximeters, infrared laser therapy devices, etc. Infrared light can penetrate the skin, which is of great significance for some non-contact medical testing and treatment.

5. Automotive category: Infrared LED beads are also used in the automotive category, such as infrared cameras and sensors for assisting driving and safety monitoring.

In short, infrared LED beads have universal applications in remote control, security, communication, medical, and automotive fields by emitting infrared light. Due to its invisibility to the human eye, infrared light can play an important role in many remote and non-contact applications.