In modern society, the use of laser pointers is becoming more and more common. It can be said that laser pointers can be used in all walks of life. Many school stationery stores also buy toy laser pointers. However, the quality of these laser pointers cannot be guaranteed. When a student buys a high-power laser pointer, it is easy to cause accidental injury. How harmful is the toy laser pointer? It can be said that once the skin or eyeball is exposed for a long time, it is easy to cause irreversible damage.
Schools must promote more campus safety knowledge. If it is impossible to prohibit the sale of toy laser pointers at off-campus stationery stores, they must tell students more that laser pointers must not be brought into schools to avoid unnecessary accidents. How to use the laser pointer correctly? It is necessary to learn more about the correct method of using the laser pointer, so as to avoid potential safety hazards.
1. Laser pointers are dangerous, especially high-power lasers for outdoor use, laser flashlights using lithium batteries, the focal point of the laser has a certain degree of heat after focusing, which can cause physical damage.
2. 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.
The laser beam has a dazzling effect at close range. Do not observe the beam at close range for a long time, or deliberately observe the beam. The scattered light of the laser beam will make your eyes feel tired.
3. Don't lend the green laser pointer to others who don't understand the harmfulness of laser. If you have to borrow, you must clearly inform the other party of the correct usage and precautions.