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However, since the radiation of the pointer can damage the retina, care must be taken when using it. Normally, no one is expected to look directly into the beam!
The laser beam is unidirectional, so it is not visible from the side-the light is directed from the pointer to the screen. In fact, light is not a laser, although the tool is called a laser pointer. Its beam is harmless. Unlike a real laser beam, it cannot penetrate anything.
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