• UV flashlights are usually used to identify some jade, antiques, the authenticity of banknotes, the quality of products, and so on.

UV flashlights are usually used to identify some jade, antiques, the authenticity of banknotes, the quality of products, and so on. The two common wavelengths are 365nm and 395nm. The difference is:
1. Different wavelengths
One of the most typical differences between the two types of UV flashlights is that the light of the flashlight has a different wavelength, one of which is 365 nm and one is 395 nm. This point can be seen very intuitively from their names. This difference is also a difference in the parameters of the flashlight.
2. Irradiation items are different in color
These two types of flashlights also differ in the color of the illuminated light. The light from the 365nm violet flashlight is relatively light, while the light from the 395nm UV flashlight is relatively strong. It can be easily recognized from the color of the light. Generally speaking, when the flashlight with a lighter color is illuminated, the fluorescent agent inside the article is more easily recognized, and the function of identifying the fluorescent agent when the flashlight with a darker color is illuminated is not. So strong.
3. Different prices
The 365nm violet light flashlight is naturally more expensive because it can better identify the fluorescent agent. The 395nm violet flashlight recognition effect is relatively weak, so its price is relatively cheaper.


UV flashlight application (identification of jade)

  • The light source of the flashlight is close to the surface of the jade, mainly to see the texture and thickness of the jade.
    The flashlight is directly on the surface of Hetian jade, and the light in the Hetian jade is light-transmitting, and the light is relatively concentrated, while the direct light on the quartzite, marble, and glass mixed products is relatively astigmatism.
  • When the direct flashlight is slowly translated, it can be used to identify whether the jade texture is uniform. When the flashlight is translated, the uniformity of the light transmittance of the jade indicates that the structure is uniform and the light transmittance is not uniform, indicating that the structural uniformity of the jade is not good.
  • The jade identification glare flashlight(flashlight manufacturer) oblique is an important means to identify the grain thickness and density of Hetian jade texture.
    At the time of identification, a strong light flashlight is used to align the parallel surface of a certain surface of Hetian jade (which is irradiated to the skinless side as much as possible) at an angle of 45° and is irradiated about 3 to 10 cm from the surface of Hetian jade. Or the far-and-close moving single-point type to see the floc structure is appropriate, multiple points of irradiation, according to which the fineness of the Hetian jade stone and the thickness of the particles are identified.
  • The jade identification glare flashlight back is an important means to identify whether Hetian jade has hidden impurities or cracks.
    At the time of identification, use a flashlight to stick to the back of Hetian jade stone, and then slowly translate to identify whether the Hetian jade stone structure contains impurities or cracks. When there are impurities, there will be dark spots inside the jade and jade, and there will be internal cracks. When the flashlight source is translated, a normal dark reaction of the flashlight source may occur, or there may be a non-uniform refracted light change reaction.