What is the main use of the infrared light emitting diode receiving head?

冷枫yj

What is the main use of the infrared light emitting diode receiving head? [Copy link]

What is the main use of the infrared light emitting diode receiver? What kind of diode is used for the external light emitting diode? [ This post was last edited by Lengfengyj on 2009-5-15 10:37 ]

gaoxiao

https://bbs.eeworld.com.cn/thread-75218-1-2.html Take a look at this for an introduction to the principles!

xu__changhua

Originally posted by 冷枫yj on 2009-5-15 10:29 What is the main use of the infrared light emitting diode receiving head? What kind of diode is used for the external light emitting diode?

The infrared light emitting diode receiving head mainly uses infrared photodiodes or infrared phototransistors. What kind of diode is used for the external light emitting diode? The word "red" is missing at the beginning of this sentence. Infrared light emitting diodes use infrared light emitting diodes. If you have an old scroll wheel mouse at home, it has two sets of infrared transceiver tubes, you can try it (a new one is too wasteful, I haven't studied whether the new optical mouse is infrared)