Laser pointers are widely used in various fields such as teaching, scientific research, military, tourism, and construction. For example, in teaching and academic presentations, laser pointers can be used in conjunction with video equipment to indicate key points; During tourism, tour guides can use laser pointers to remotely indicate tourist attractions; Laser indicators can be used to indicate specific locations and distances during construction and decoration inspections.

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.

Laser pointer is a small low-power laser that uses laser as an indicator and belongs to general household items. Laser amplifies or oscillates light in certain excited substances through the principle of stimulated radiation, forming a high-intensity beam. The laser pointer contains components such as laser diodes, batteries, switches, etc., which are controlled by circuits to emit laser beams.

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.