Will the visibility of the laser pointer cause harm to the body?
The current laser pointer, even the Green laser pointer, is not conspicuous on the LCD screen and cannot be displayed in a remote presentation. The laser light will be absorbed by the LCD screen, making it difficult for viewers to see the laser spot. For remote presentations, because the shared content is the slide screen, not the camera that shoots the screen, remote viewers cannot see the laser dots. In most areas, the labeling of laser pointers is regulated.
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The laser pointer device should carry a "warning" label, which also indicates which class and power output the laser belongs to. Many laser pointers are IIIA devices, which means that direct exposure to the laser may cause damage. The second type of laser has lower power and is a better choice if you are concerned about safety. However, lower light output may not be effective in lecture halls. If used in a responsible manner, the laser pointer should not pose a hazard. Do not use it as a toy or point directly at others. When using laser pointers outdoors, please pay attention to passing cars and airplanes, as examples of laser-related problems have been recorded in the eyes of pilots and pilots. Do not allow children to use this device. If you find someone pointed at your eyes, please move and remind the person who pointed it at you not to point these devices at other people’s faces.
2021-10-02 10:33:43
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