Laser pointers, especially page turning Laser pointer, let them get rid of the shackles of the podium. With the rapid progress of the times, Green Laser Pointer China has become the best choice for Chinese business people and teachers. They no longer need to explain while operating the computer, and they will be affected by their actions. Limited, with the laser pointer, the dream of freedom of speech has been fully realized. Therefore, in this regard, we must first understand the impact of the target's characteristics on the penetration of various wavelengths.
There is no absolute relationship between laser wavelength and penetration. For example, in the air, the longer the wavelength, the stronger the penetration of visible light. But in the long-wave infrared stage, it has a significant thermal effect, so its penetrating power becomes very weak. The same is true for glass. The CO2 laser can engrave glass, but the 532 laser cannot. Objects of different colors have very obvious differences in their ability to absorb various wavelengths of laser light. The absorption of the same color is the worst, which is equivalent to white; the absorption of the opposite color is the most obvious, which is equivalent to black. For example, the green laser pointer China can easily light red matches, while lighting green matches is more laborious.