After ultraviolet light is refracted or reflected, its light intensity generally does not become higher. On the contrary, in most cases, the intensity of ultraviolet light may be reduced. This is because the light energy may be partially lost during refraction and reflection, or the attenuation of ultraviolet light due to the absorption properties of the material.
Cause analysis
Energy loss during reflection:
When ultraviolet light shines on a mirror or other surface, some of the light will be reflected, but due to the characteristics of the mirror material (such as surface roughness, absorption characteristics, etc.), some of the energy will be absorbed or scattered. Therefore, the intensity of the reflected ultraviolet light is usually lower than that of the incident light.
Only on specific mirror materials with very high reflectivity (such as some special metals or coatings) can the intensity of the reflected UV light approach the intensity of the incident light, but still not enhanced.
Changes in intensity during refraction:
In the process of refraction, when ultraviolet light passes through different media (such as from air into glass or water), the direction of light propagation changes, and the speed of light also changes. However, the energy of light does not increase during the refraction process, but the light intensity may be weakened due to material absorption or scattering.
The difference in refractive index affects the path of light, but does not increase the energy or intensity of light.
Effects of material absorption:
Many materials, especially ordinary glass, plastic, etc., will absorb some ultraviolet light, so the intensity of ultraviolet light tends to decrease after passing through these materials. Even the quartz glass that penetrates ultraviolet light will have a certain absorption rate, resulting in a weakening of the intensity of ultraviolet light.
Enhancements for special cases:
In some special optical systems, such as the use of UV-specific mirrors and lenses, the design is to focus the light or increase the intensity of the light in a specific area. But this is usually done by focusing the beam rather than increasing the energy of the light.
Inrus UVC-LED sterilization water purification products, the use of UV special optical lenses, the use of optical principles to maximize the intensity of ultraviolet light. Thus, it can effectively destroy the RNA and DNA of the bacteria in a very short time (0.2 seconds), and kill the bacteria and viruses in the water, with a bactericidal rate of 99.999%.
conclusion
Ultraviolet light usually does not increase in intensity after it is refracted or reflected. In general, absorption, scattering, and material properties during reflection and refraction all lead to a reduction in UV light intensity. Unless a specially designed optical system is used to focus the beam, the energy and intensity of ultraviolet light is not enhanced during these processes.
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Shenzhen Hechuang Hitech CO., LTD. is a National High-tech Enterprise, which has won a number of invention patent technology awards. We focuses on the Research, Development, Production and Application of INNEST UVC-LED Technology. It adopts innovative technologies of revolutionary optics and fluid science, which can kill bacteria and viruses in 0.2 seconds, with a sterilization rate of 99.999%. Hechuang Hitech provides safer, more efficient and more humanized sterilization module design for Water Air and Surface Disinfection products.
