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Infrared receiving LED, also known as infrared receiving diode, is a semiconductor device that can receive infrared light and convert it into an electrical signal. Infrared receiving LEDs have a wide range of applications in remote control, wireless communication, optoelectronic sensors, and other fields. Below, we will provide a detailed introduction to several common types of infrared receiving LEDs.

1. Ordinary infrared receiving LED

Ordinary infrared receiving LED is the most common type of infrared receiving device, which has a wide spectral response range and high sensitivity. This type of LED is usually made of silicon material, which has a smaller volume and lower cost. They can receive infrared light with wavelengths between 850nm and 940nm and convert it into voltage or current signals. Ordinary infrared receiving LEDs are widely used in various remote controllers, photoelectric switches, and sensors.

2. High sensitivity infrared receiving LED

High sensitivity infrared receiving LEDs are structurally similar to ordinary infrared receiving LEDs, but have been optimized in materials and processes to improve their sensitivity and response speed. These types of LEDs are usually made of special materials such as germanium silicon to expand the spectral response range and improve sensitivity. High sensitivity infrared receiving LED can receive weaker infrared signals, suitable for long-distance communication and infrared remote control applications in complex environments.

3. Infrared receiving LED with filter

Infrared receiving LED with filter is achieved by adding a specific wavelength filter on the surface of the LED to filter out stray light interference. Improve the credit reduction ratio. This type of light reading plate only allows infrared light of a specific wavelength to pass through, thereby strengthening the response ability of the infrared receiver to specific wavelength light. The infrared receiver LD with light catching film is suitable for infrared communication and remote control applications that require high precision and drift characteristics.

4. Array type infrared receiving LED

The array type infrared continuous receiving LED is composed of multiple infrared receiving units, each of which can independently receive infrared signal crystals. This structure enables the array type infrared building LD to simultaneously connect multiple infrared signal sources, improving the cumulative anti-interference and communication capabilities. Array based infrared receiver LD0 is commonly used for multi-channel infrared communication and infrared sensing applications in complex environments.

5. Photodiode type infrared receiving device

Photodiode type infrared receiver is a special type of infrared receiver that uses photodiodes as photoelectric conversion elements. Compared with ordinary infrared receiving LEDs, photodiode type infrared receiving devices have higher sensitivity and faster response speed. They are typically used for high-speed infrared communication and high-precision infrared sensing applications.

6. Integrated infrared receiver module

Integrated infrared receiving module is a modular product that integrates infrared receiving LED and signal processing circuit together. This module has the advantages of small size, low power consumption, and easy integration, and is widely used in various infrared remote control and wireless communication products.