The glass will reflect light. Be careful not to illuminate the eyes at close range, and be more careful if it is a high-powered eye. When irradiating outdoors, please do not irradiate pedestrians and vehicles, so as not to affect or mislead others.
The harm of ppt page turning pen laser pointer to human body
PPT page turning laser pointer, the laser power is less than 5mw. As long as you are not as curious and staring as a child, there will be no danger or harm. Even if dizzy occasionally, it will not cause harm.
Children playing with laser pointers don’t know if they hurt their eyes
If you are worried, please go to the hospital for an eye exam. Young children cannot tell about their experiences.
Is the light of the high-power green laser pointer scattered? For example, there is stray light around the lighting point, mine is 1000MW blue light, two meters kills the white in a few seconds. If there is a lot of noise around the light spot, it is beyond normal and the lens is stuck with dust. Clean the lower lens.
Is the red light from the other end of the whiteboard marker used in the school a laser?
Not infrared. Infrared refers to infrared lasers, and infrared lasers usually do not see light. It is an ordinary red laser. 65nm red laser