T5 support
In the 1960s, scientists developed LED based on the principle of semiconductor PN junction. The LED developed at that time was made of GaASP and its luminous color was red. After nearly 30 years of development, we are very familiar with LED, which can emit red, orange, yellow, green, blue and other colors. However, the white LED for lighting was developed only after 2000. Here we introduce the white LED for lighting.
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隐藏域元素占位
T8 fluorescent lamp
The semiconductor chip is composed of two parts. One part is a P-type semiconductor, in which holes are dominant, and the other end is an N-type semiconductor, in which electrons are dominant. But when these two semiconductors are connected, a P-N junction is formed between them. When the current acts on the chip through the wire, the electrons will be pushed to the P area, where the electrons will recombine with holes, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material that forms the P-N junction.
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隐藏域元素占位
T8 germicidal lamp
The semiconductor chip is composed of two parts. One part is a P-type semiconductor, in which holes are dominant, and the other end is an N-type semiconductor, in which electrons are dominant. But when these two semiconductors are connected, a P-N junction is formed between them. When the current acts on the chip through the wire, the electrons will be pushed to the P area, where the electrons will recombine with holes, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material that forms the P-N junction.
关键词：
隐藏域元素占位
LED panel lamp metal solid series
The semiconductor chip is composed of two parts. One part is a P-type semiconductor, in which holes are dominant, and the other end is an N-type semiconductor, in which electrons are dominant. But when these two semiconductors are connected, a P-N junction is formed between them. When the current acts on the chip through the wire, the electrons will be pushed to the P area, where the electrons will recombine with holes, and then emit energy in the form of photons. This is the principle of LED light emission. The wavelength of light, that is, the color of light, is determined by the material that forms the P-N junction.
关键词：
隐藏域元素占位
Mining lamp
LED (Light Emitting Diode), a light emitting diode, is a solid state semiconductor device that can convert electric energy into visible light. It can directly convert electricity into light. The heart of LED is a semiconductor chip. One end of the chip is attached to a bracket, one end is a negative pole, and the other end is connected to the positive pole of the power supply, so that the entire chip is encapsulated by epoxy resin.
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隐藏域元素占位
Gold flame column bubble
LED lamp is a semiconductor material chip of electroluminescence, which is solidified on the bracket with silver glue or white glue, and then connected to the chip and circuit board with silver wire or gold wire. The periphery is sealed with epoxy resin to protect the internal core wire. Finally, the shell is installed, so the seismic resistance of LED lamp is good.
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隐藏域元素占位