Infrared Transmitters

It is difficult to imagine modern optoelectronics without infrared transmitters. These devices enable short-range wireless communication, distance measurement, and remote control of equipment. They are commonly considered indispensable in applications that require a secure and invisible information exchange. The IR transmitters offered by Micros, with verified specifications, ensure reliability and stable emission in the infrared spectrum.

What are infrared transmitters and what are they used for?

An infrared transmitter is a type of LED with a p–n junction that emits electromagnetic radiation in the infrared (IR) range, invisible to the human eye. Its main task is to convert an electrical signal into an optical one, and it is used wherever one-way or two-way optical communication is needed. Typical examples of the application of infrared transmitters include:

• remote control systems (e.g., remotes) – sending control codes to televisions, audio systems, or air conditioners;
• proximity sensors and light barriers – creating invisible light beams for object detection or barrier interruption;
• distance measurement systems – transmitting elements in optical rangefinders.

Due to their functionality, infrared transmitters play an important role in automation and security systems, providing reliable detection and wireless control.

How does an infrared transmitter work?

The operation of an infrared transmitter can be compared to that of a standard LED. The most important aspects are:

• radiation emission
• signal modulation
• emission angle

Understanding these mechanisms allows for the proper selection and implementation of components, enabling an efficient and safe optical transmission system. This system is the foundation of every infrared transmitter-receiver pair.

What should you consider when choosing the right IR transmitter?

When choosing an infrared transmitter from Micros, you should consider the parameters that are critical for your project. In bidirectional applications, compatibility with the transmitter–receiver module is essential. Other important criteria include:

• wavelength
• radiation power
• emission angle
• maximum forward current

Taking these factors into account ensures long-lasting and failure-free operation of the entire optoelectronic system.

Infrared transmitters offered by Micros are components with verified technical specifications and feature high reliability and parameter stability. They are an excellent choice both for hobbyists and for professional mass production.

If you have trouble choosing the right IR transmitter or need advice on its proper use, contact us: bok // micros.com.pl.