Laser pointer, also known as laser pen, pointed star pen, etc., is a pen type emitter that designs visible laser into a portable, easy to grip, and laser module (diode) processing. Early laser indicators often used helium neon gas lasers, producing lasers with a wavelength of 633nm. With the development of technology, laser diodes have gradually become mainstream, and various colors of laser indicators have emerged.

matters needing attention

Although laser pointers are powerful and widely used, safety should still be taken into account during use. Especially avoid shooting laser beams into the human eye or other sensitive areas to prevent injury.

In certain specific occasions, such as art galleries, zoos, and other places that require protection from light sensitivity, the use of laser pointers should be avoided.