Classification of light sources
Time:2021-06-07
Views:483
Classification of light sources:
① Combustion luminescence
② Incandescent: incandescent lamp, halogen lamp
③ Gas discharge: fluorescent lamp, mercury lamp, sodium lamp, metal halide lamp
④ Electroluminescence, laser: electrodeless lamp, xenon lamp
Note: LED is a kind of solid-state light source of "cold light source". Incandescent lamp is the first generation light source, ordinary fluorescent lamp is the second generation light source, and other gas discharge lamps are the third generation light source except fluorescent lamp. The fourth generation light source (X-ray laser) is a new generation light source under exploration after the third generation gas discharge light source The coherence and time structure are much better than the third generation gas discharge light source.
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