An IR sensor works as it sends IR signal through the IR transmitter and receives through IR receiver. The most common use of this LED is in IR sensor, with companion to IR receiver. You can see an IR light through your phone camera, night-vision, and, etc.
We are only able to see a light having a wavelength ranges 380 to 750nm. An Infrared LED looks same as normal LED, but human eye is not capable of seeing the IR light as it’s beyond our visible electromagnetic spectrum. We can make various projects, sensor using the IR LED like obstacle detector, visitor-counter and line-followers. As in the remote of the television, infrared cameras, transmission systems. IR LED is used in various daily used electronic appliances. Mostly used in IR sensor as it is the combination of IR receiver and IR transmitter (IR LED). The semiconductor material used to make these LEDs are gallium arsenide or aluminum arsenide. These are mostly use in the remote control of TV’s, cameras and different types of electronic instruments. The wavelength range varies from 760nm to 1mm. IR LED stands for “Infrared Light Emitting Diode”, they allows to emit light with the wavelength of up to 940nm, which is the infrared range of electromagnetic radiation spectrum. The IR LED is same aspect as the normal LED. We can only see light rays from violet to red whose wavelength travels from 380 (violet light) to 750nm (red light). These rays are not able to be seen by the human eyes as it’s not in the range of human visible electromagnetic radiation spectrum. Note: Complete technical information can be found in the IR LED Datasheet, linked at the bottom of this page.Īn IR LED is a specially designed LED which transmits infrared rays.
Soldering Temperature should not exceed 260 ℃.Temperature for storage and operation varies from -40 to 100 ℃.Forward current (IF) is 100mA (normal condition) and 300mA (max.).The IR LED or Infrared LED has polarity i.e.it has a positive and negative pin. The pin which is long is the positive pin (anode) and the pin which is short is the negative pin (cathode) as shown in the above IR LED pinout.
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