As a kind of teaching tool, laser pointer is relatively common. So, how much does the laser pointer cost? Laser pointers are more common in our daily lives, especially the light it emits is very attractive, and some children even use it as a toy. So, how much does the laser pointer cost?
The price of laser pointers differs greatly from that of laser pointers. There are 20 to 30 yuan, depending on the color and power of the laser pointer, the laser pointer ranges from 50 to 60 to 3,000 to 4,000 yuan. The specific choice depends on your needs.
The unit for measuring the energy of a laser pointer is watts, the lowest is 3 milliwatts (ie 0.003 watts), and there are powers of 100, 200, 300, and 500 milliwatts. Some sellers even claim that their laser pointers can reach 10 watts. . The prices of these laser pointers are also different. The cheapest is only tens of dollars, and the most expensive is hundreds of dollars.
The dangers of laser pointers
Many of the laser pointers and laser flashlights on the market are of class IIIB with a power exceeding 5mW. If the green laser pointer is directed into the eyes, it may cause damage to the eyes. For some high-power laser pointers, the diffused light may also cause damage to the eyes, and may even ignite flammable materials after focusing. Therefore, the laser pointer is not a toy and is not suitable for children. If you are operating a high-power laser, you should wear special safety glasses, especially the invisible laser. Also, no matter how powerful the laser is, it must be avoided to hit yourself and other people's eyes, and the laser itself should also be marked with warning labels.
Although the function of the laser pointer is very powerful, it can help us do many impossible tasks. But we must pay attention to safety when using it. If it is used improperly, it will bring us irreparable harm. Want to know more about laser pointer safety. Please pay more attention to Baibai Safety Internet Cafe!