Laser pointers are continuously used in various high-tech and entertainment work fields all over the world. The laser pointer has a service life of up to 2 years. However, the laser pointer may also be damaged in a short time. In addition to the problems of the laser pointer itself, the correct operation of the laser pointer is also very important. Today, I will explain why the laser pointer cannot be turned on. Do not aim the 200mW laser pointer at people intentionally. Radiation levels in excess of 1 mW may damage the eyes and damage human vision in the long run. Class 2 laser pointers can also cause glare, which can lead to other accidents. Even with a Class 2 laser pointer, if the closed reflex of the eyelid is suppressed, there is a risk of permanent eye damage. Efforts must be made to prevent the misuse of the laser pointer and avoid glare and irreversible damage to the retina.
What is the blue-violet Laser Pointer? The irradiation point of the laser pointer depends not only on the output and apparent brightness of the laser reflected from the surface, but also on the color version of the human eye. For example, the human eye is most sensitive to wavelengths in the visible spectrum between 520 nm and 570 nm, but less sensitive to red and blue laser wavelengths. Therefore, the 532 nm green laser is brighter than other color lasers with the same output power. The blue-violet laser pointer made of 405nm blue-violet laser diode is a kind of semiconductor laser close to ultraviolet light. It is less obvious, but it can excite fluorescence. Suitable for banknote inspection and chemical inspection.