Do you know the purpose of using a laser pointer?
The safety of high-power laser pointers is a key issue that cannot be ignored. You need to use high powered laser safely because they can cause serious damage to your eyes. The most important thing to remember when using a laser pointer is to keep the beam away from your eyes and any other people who may be around you. This is especially important when using a laser pointer to see the stars at night. Don't let other people use your laser pointer. Unless they fully understand the dangers of laser pointers, it is best not to let others use your laser pointer. In the demo environment, most people may be aware of the safety hazards associated with the use of laser pointers. If someone does not know how to use it properly, please give them a brief explanation of how to use it and keep it away from people's eyes.
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Under no circumstances should you look directly at the laser beam. Even if this is a low-power laser pointer, you don't want to risk it with your eyes. Looking directly at the beam, even for a few seconds, can damage the retina. Never accept and refuse to look at the laser pointer. Always pay attention to reflective surfaces. Mirrors, polished metal or glass will reflect the green laser beam and may accidentally hit the eyes of others. Even this reflected beam can harm others. During the presentation, if you do not use the laser pointer to aim at the screen, please turn off the laser pointer.
2021-10-20 12:23:03
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