Precautions for using the extreme laser pointer

Because Laser pointer are dangerous, especially high-power lasers for outdoor use, laser flashlights using lithium batteries, the focus point of the laser has a certain degree of heat after focusing, which can cause physical damage. When using, make sure that the laser cannot be aimed at others or yourself, and be careful not to aim at easily ignited substances when using it at close range. Laser pointers are roughly divided into four categories according to the intensity of energy. The power of the first low-output laser pointer is less than 0.4MW. This laser pointer basically does not cause damage to the eyes. It is also used in daily life and has strong practicability. The second is the low-output visible laser pointer with a power of about 0.4MW-1MW. Using this laser pointer to illuminate the eyes will make the eyes feel dizzy and will not cause major damage to the eyes. It is generally used in companies or schools. The third type of visible light continuous laser and the fourth type of high output continuous laser are less used in daily life.