High power laser pointers come in different types regarding color of the beam, power, and utility. The most common high power laser pointers are those with green beam color. Green laser pointers appeared for the public around the year 2000, and they are a type of DPSS (diode-pumped solid state) lasers. They are more complicated and more powerful than the standard red lasers because of the higher wavelength range. Green laser pointers come in different output powers. There is a non-harm barrier from doctors’ statistics at 5 mW (miliwatts), and lasers emitting at higher powers than that should be handled with precaution. They can be eye damaging, so you should never look straight into the beam, point it at reflective surfaces, or let them with unsupervised children. However, for someone who likes hiking, traveling a lot in dangerous areas, high power laser pointers could be extremely helpful. Generally, between 100-300 mW, green laser pointers could send signals miles away. So for someone injured, or trapped this could save his life. Not to mention their powerful beam can scare away dangerous wild animals. In astronomy high power laser pointers had a big impact. In combination with red lasers, they project a visible beam at night, thanks to electromagnetic radiation that causes an elastic scattering of light, also known as the Rayleigh scattering, and they can easily point at constellations or stars. High power laser pointers appeared in commercial use to. Construction companies use them for high precision measuring and accuracy in large projects. In medicine, laser technology has brought a lot of improvements. While, small red lasers are used to cure insignificant injuries, high power laser pointers cut through tissue with precision, and sear big wounds. High power laser pointers are well designed often being pen shaped which can be hidden in a small pocket. They work with 2 AAA batteries, have a clear beam and are durable and handy. However you should be very careful when you are using it because it can produce untreatable eye damage. If you are a high power laser pointers fan, you should consider buying a 100 mW green pointer pen and you will see its efficiency from the first use.
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