DIY丨Do-it-yourself with wooden strips to make a small table lamp, the key it will light up

When the switch is pressed, the small wooden table lamp will emit a soft light. So why does the Wooden Table Lamp emit light? This is thanks to the small bulb in it. The small bulb is a light-emitting diode with forward conduction and reverse cutoff characteristics. When the appropriate voltage is added, electrons and holes combine to form carriers, which are compounded at the PN junction and emit light. This process converts electrical energy into light energy, realizing the lighting function of the table lamp.
From a scientific point of view, the light-emitting principle of small wooden table lamps is related to the PN junction. When a positive voltage is added to both ends of the PN junction, electrons and holes are attracted to each other internally and pass through the space charge region. During this process, the electrons and holes continuously release energy and emit it outward in the form of light. The wavelength of this light depends on the energy level difference between the electrons and holes in the semiconductor material.
#diy

Тэги:

#DIY

Скачать видео