Is it illegal to point a laser pointer at someone?
Laser lamp is generally divided into industrial laser lamp and entertainment laser lamp, laser principle is the use of YAG solid laser, krypton lamp and Nd:YAG crystal rod to produce laser beam, through frequency conversion, the formation of visible green light. Using computer control galvanometer to produce high-speed deflection, so as to form beautiful words or graphics. The laser light has the advantages of bright color, high brightness, good directivity, long range and easy control, which makes it look more magical and dreamlike. Applied in buildings, parks, squares, theaters, etc., the use of laser beam is not divergent, can attract people's eyes from several kilometers away, because from the green laser pointer has become the focus of attention. In short, everything has pros and cons, need to pay attention to the occasion.
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Technology
All objects in nature, as long as the temperature is above absolute temperature zero, are constantly transmitting heat to the outside in the form of electromagnetic waves, and this way of transmitting energy is called radiation. The energy emitted by an object through radiation is called radiant energy, or radiation for short. In other words, radiation is just a process of giving out energy, and sunlight is radiation, but it doesn't affect your body, let alone your laser pointer.
2021-12-07 11:51:33
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