Is the laser pointer a laser diode?
The light is produced by a special laser diode. The lens installed in front of it turns the beam into a beam. The intensity of its lighting and the maximum distance it can bridge depends on the light output of the laser diode. Power is measured in milliwatts (mW). Laser pointers are divided into different categories for easy identification. The scale ranges from level 1 to level 4. Class 1 laser has the lowest luminosity, while class 4 version has the highest intensity. This classification indicates whether the beam from the laser pointer is dangerous or harmless if it hits the eye.
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The laser pointer can be used for hiking and outdoor activities. The brightness of the high-power laser pointer is enough to scare large wild animals, which is useful for hiking and camping. In these cases, the laser pointer can also be used as a practical survival tool, because it can be used as an emergency rescue signal, whether it is day or night, the aircraft and other parties can be seen at a very long distance. For example, in the evening of August 2010, the rescue team found a red laser pointer and rescued two men and a boy from the swamp. The most powerful laser pointer for precise alignment is used as the laser rifle scope of the aiming gun.
2021-10-27 11:50:44
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