how the laser can work?

Laser light is generally divided into industrial laser light and entertainment laser light. The principle of laser light is to use YAG solid-state laser, using xenon lamp and Nd:YAG crystal rod to generate laser beam, through frequency conversion, to form visible green light. The use of computer-controlled galvanometers produces high-speed deflections that create beautiful text or graphics.

Laser light has the advantages of bright colors, high brightness, good directivity, long range, and easy control. It looks more magical and fantastic. Applied in buildings, parks, plazas, theaters, etc., the use of non-diverging light beams can attract the attention of people as far away as a few kilometers away, since the issue of points from the laser has also become the focus of attention.
Laser effect The laser light emitted by the laser light is directed at a water curtain, a building or a wall, etc. The laser is rapidly moved under the control of the scanning system to form a text, a pattern, etc. for viewing. Laser lights are installed in theaters, nightclubs, and dance halls. A certain amount of dry ice smoke is cast, the laser beam is directed at the smoke and scanned, and text, patterns, and animation effects can also be formed. You can also play fierce dancing with the music, bright and colorful colors are intoxicating to stay!