A luminescent material is varied, the main types are: photoluminescence, cathode luminescence, electroluminescence, thermoluminescence, optically stimulated luminescence, luminescent
The fluorescent material
1 molecular structure of the problem
The fluorescent material is some sensitive special photosensitive molecules, already exists in the form of photographic materials and molecular inertia, when the absorption light irradiation he is not our long said, but the light energy to the molecular structure of photosensitive material change, light to structure irradiated molecules continue to change until it best change, when there is no light, there is no external energy is its molecular structure continues to change, because the structure of molecular interactions between inertia to restore, restore time to produce energy, this is the light into.
2 no matter how some fluorescent material irradiation (visible light) will not light, but in some special ray (Ray) exposure to light, when the molecular photosensitive material by a ray irradiation, molecular atoms from the structure will not change, ray itself with large amounts of energy, atomic by the radiation force electronic around the nucleus of easily escape
So put some invisible rays through the electronic force changed their frequency so that the wavelength and frequency in the range of visible light, this is the luminous principle, we cathode ray picture tube commonly used is the use of this principle.
The fluorescent material
1 molecular structure of the problem
The fluorescent material is some sensitive special photosensitive molecules, already exists in the form of photographic materials and molecular inertia, when the absorption light irradiation he is not our long said, but the light energy to the molecular structure of photosensitive material change, light to structure irradiated molecules continue to change until it best change, when there is no light, there is no external energy is its molecular structure continues to change, because the structure of molecular interactions between inertia to restore, restore time to produce energy, this is the light into.
2 no matter how some fluorescent material irradiation (visible light) will not light, but in some special ray (Ray) exposure to light, when the molecular photosensitive material by a ray irradiation, molecular atoms from the structure will not change, ray itself with large amounts of energy, atomic by the radiation force electronic around the nucleus of easily escape
So put some invisible rays through the electronic force changed their frequency so that the wavelength and frequency in the range of visible light, this is the luminous principle, we cathode ray picture tube commonly used is the use of this principle.
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