Also known as medium-wave ultraviolet or far ultraviolet. Its main function is to have erythema effect on the human body. It can promote mineral metabolism and the formation of vitamin D in the body. Utilizing the erythema reaction, UVB is widely used in medical treatment, such as the treatment of skin diseases. But the irradiation methods and applicable symptoms of ultraviolet therapy are generally used in hospitals , and consumers cannot use them by themselves.

UVC

It is also called short-wave ultraviolet or deep ultraviolet. Because of its shortest wavelength and the largest photon energy, it can most trigger photochemical reactions and destroy the nucleic acid and protein structure of microorganisms. At present, the most widely used application is sterilization and disinfection.

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Under the illumination of a jade flashlight, crystal-like substances such as monosodium glutamate and salt may appear in jadeite. If you can’t see such a substance under the light, there may be two situations: this item is not real jade, it may be glass; It may be a sky-high jadeite.

The color of good jade is generally evenly distributed, and the internal lines of the jade cannot be seen, but after dyeing, there is a color difference between the crystal grain jade and the gap, and it appears as a spider web under the light of a jade flashlight . If you can’t distinguish with the naked eye, you can consider using a purple flashlight to assist observation.

Real jadeite will look very shiny under the light of a jade flashlight or in the sun, and the internal texture is also very fine and cool. The fake emerald green will feel rough to the touch, the surface is not very smooth, the color is also dull, and there may be bubbles inside, and the observation can be assisted by ultraviolet light tube

Appreciation of amber

For relatively opaque, such as darker (such as maroon) artificial amber, it will turn green under the illumination of a jade flashlight, but this phenomenon generally does not occur for relatively transparent natural amber.

Appreciation beeswax

Under the illumination of the jade flashlight, the lines inside the natural beeswax are irregular; otherwise, it is artificial beeswax pressed with beeswax powder.

Appreciation coral

Through the irradiation of the jade flashlight, you can see whether there are impurities or tower cracks in the coral jade. Use a flashlight to stick to the back of the coral jade, and then gradually move it. When there are impurities, there will be dark spots inside the coral jade. When there are cracks, there will be dark light or uneven refracted light when the flashlight light source is moved.

Appreciation of porcelain

Although jade flashlight is not as good as microscopes and other professional porcelain appreciating tools in appreciating porcelain, it also has a certain auxiliary effect. Using jade flashlight can see the density, uniformity and hidden cracks of porcelain.

The functions of jade flashlight are far more than those listed above. There are many application fields that need to be developed by the majority of users and our manufacturers. But what is certain is that the current jade flashlight has become a must-have tool for experts and lovers of jade antiques.

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TANK007 has the ability to provide solutions.

Analysis of lamp bead selection and optical design in different application scenarios. Influencing factors of different curing systems affecting curing speed and effect. The key to using different wavelength spectra according to local conditions in criminal investigation. The best effect of different spectra for trace tracking of different objects. Different types of fluorescent reactions have different effects on radiation intensity. Mechanism effects of ultraviolet light on different microorganisms. Influencing factors of disinfecting doses of different microorganisms on the selection of lamps

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Divided by band

? According to ISO-DIS-21348 and Chinese current national standard GB/T2900.65-004 “Electrical terminology lighting”, the most widely used ultraviolet bands are classified as: UVA (400nm-315nm), UVB (315nm-280nm), UVC ( 280nm–200nm).

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When ultraviolet rays hit certain substances, these substances emit visible light of various colors and different intensities, and when the light source stops irradiating, this light disappears. These substances that emit fluorescence are fluorescent substances. Fluorescent substances are widely present around our lives, such as fluorescent agents (whitening agents), fluorescent minerals, petroleum, biological oils and other fatty compounds, as well as some organic macromolecular compounds (vitamins, amino acids), etc., so we can use the fluorescent reaction in some applications.

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In addition, ultraviolet rays are harmful to plant microorganisms. Use lamps that can provide low-dose ultraviolet rays to kill pathogens without harming plants. For example, certain bacteria can cause plant diseases such as wilt and rust, and the technology has also been proven effective against downy mildew and some pests.

Insect trap lamp：

Insects can see a wider range of spectrum than human eyes. Therefore, insects can see ultraviolet light that human eyes cannot see. The results of studies on the phototaxis of different types of insects show that most phototaxis insects prefer 330nm-400nm ultraviolet light. Light waves and purple light waves, therefore, we can use ultraviolet lamps to trap and kill harmful mosquitoes.

Photocatalyst：

Under the irradiation of ultraviolet rays, the surface of the photocatalyst (usually titanium dioxide) produces a large amount of hydroxyl radicals and superoxides. When they come into contact with organic matter, they will undergo a strong oxidation-reduction reaction to produce carbon dioxide and water. Therefore, photocatalysts can be used to Carry out sterilization and disinfection and purification of pollution.

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No matter UV coating, ink or glue, it has a natural advantage, that is, there are no or very few chemical volatile substances, so you can always keep a UV-curable flashlight in the daily life of the family, such as use in home touch up paint and ink. Or, when it is a bonded object, it can be used at any time.

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