Many people do not know how to use laser pointers properly? In fact, the laser pointer is widely used and plays an important role in all walks of life. The laser pointer is simply an infrared pen. You can use this option to mark slides. It can also be used for High beam with very high optical density can be used.
Laser pointer has various uses, but there are many accidents from the use of laser pointers, especially among minors. Now, many students do not use the laser pointer properly, so there is a risk of exposure to each other. Teachers and parents must endeavor to use laser pointers popularize so schools can ban the use of laser pointers.
The operating frequency band of today’s laser pointer is the wireless frequency band, which is mainly used to control notebook computers and projectors, these are very convenient. When the switch is turned on, it acts as an electronic pointer. Page pen, commonly known as Page pen, is designed for computers and multimedia. The new patented products of projector design are widely used in developed countries such as Europe and the United States. To To use it, first connect the receiver to the computer’s USB port, then open the foil. After the slide appears, press the up and down buttons on the laser pointer to scroll the slide.
The laser emitted by the Laser pointer is a solid-state laser, and the principle of the light emitted by the laser pointer is the principle of the light emitted by the solid-state laser. The semiconductor laser in the laser pointer is a laser diode. The three conditions of laser generation are particle inversion, threshold and resonance conditions .
