Infrared Emitter Diode (IR Emitter) is a special type of light-emitting diode (LED) that can emit electromagnetic radiation in the infrared light band. Infrared emission tubes are widely used in remote controls, sensors, night vision equipment, communication systems, and various automation control systems.

characteristic:

Infrared radiation: Infrared emission tubes emit infrared light that is invisible to the human eye, with wavelengths typically ranging from 700 nanometers to 1 millimeter.

High power: Some infrared emission tubes can provide high power output for transmitting signals over long distances or complex environments.

Quick switch: The infrared emitter can be quickly turned on and off, suitable for applications that require high-speed data transmission.

Wide viewing angle: Some infrared emission tubes have a wide viewing angle, which can cover a wider area.

Low power consumption: Compared with other infrared light sources, infrared emission tubes have lower power consumption.

Structure:

The structure of an infrared emitter tube is similar to that of a regular light-emitting diode, but it contains special semiconductor materials that enable it to emit infrared light. The packaging is usually made of plastic or glass and contains LED chips and electrodes inside. The top of the package may have a lens for focusing or diffusing infrared beams.

Common packaging types:

Through hole: such as T-1 3/4 (5mm diameter) or T-1 (3mm diameter), with two leads, suitable for soldering through PCB holes.

Surface Mount (SMD): such as 0603, 0805, 1206, etc., suitable for automated surface mount technology.

Specialized packaging: such as IR modules or arrays, typically containing multiple infrared emission tubes and other components, for specific applications such as infrared communication systems.

Application:

The main applications of infrared emission tubes include:

Remote control: Remote control for TV, air conditioning, and home entertainment systems.

Sensors: such as proximity sensors, motion detectors, and obstacle detection systems.

Night vision equipment: such as safety cameras and night driving assistance systems.

Communication system: Short range wireless data transmission according to the Infrared Data Association (IrDA) standard.

Automation control: such as automatic doors, elevators, and industrial robots.

matters needing attention:

When using infrared emission tubes, the following points should be noted:

Wavelength selection: Select the appropriate infrared wavelength according to the application requirements, for example, 940nm is commonly used for remote controls, while 850nm is commonly used for night vision devices.

Driver circuit: Design appropriate driver circuits to ensure stable current and voltage supply, avoiding overload or damage.

Optical design: Design appropriate optical systems, such as lenses or reflectors, based on the application scenario to optimize the transmission and reception of infrared light.

Environmental factors: Consider environmental factors such as sunlight interference, temperature changes, and dust, all of which may affect the performance of infrared emission tubes.

When selecting infrared emission tubes, reference should be made to the manufacturer's data manual and application notes to obtain detailed performance parameters, recommended design guidelines, and usage recommendations. Infrared emission tubes are one of the indispensable components in modern electronic devices due to their widespread applications in remote control and sensing.