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- What is LED?
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Why LED is the fourth generation light source (green light)?
According to the classification of the luminescence mechanism of electric light source: the first generation light source: resistance such as incandescent light. The second generation light source: arc and gas emission such as sodium lamp. The third generation light source: the fluorescence powder like fluorescent lamp. The fourth generation light source: solid state chip light emitting such as LED.
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- What is LED?
- The luminescence mechanism of LED and the working principle of what?
- Optical properties of LED what?
- LED has a what kind of?