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In most cases, a laser pen emits light in the form of a laser beam.Lasers are amazing light beams powerful enough to zoom miles into the sky or cut through lumps of metal.A laser beam is like a parade of soldiers all marching precisely in step.A common question to consider when browsing different laser pointers online is, "how far can a laser beam reach?" Let's talk about it.
What is a laser beam ?
Laser beam is a strong, thin, monochromatic, directional ray of electromagnetic energy or radiation inside the visible light spectrum.Laser beams can be used for transmitting optical energy to rather small spots or with low beam divergence over large distances.A laser beam of visible light with sufficiently high power may be visible when propagating in air.
What's the distance of a laser pen beam ?
The range and visible distance of any laser will depend on a few different factors.
●Output power ( mw ) - A 200mW laser will be visible for more than 1 miles while a 1000mW laser pointer or more will also be visible for 10 miles.
●Wavelength ( nm ) - A green laser pointer is more visable than a red laser pointer .
●Whether it owns an adjustable focus.
All of factors above are important to determine how far a laser beam can be visible for.
What's the applications of laser beam ?
●Medical procedures involve using laser beams for performing heart surgery, eye, cancer and cosmetic operations.Laser saber. That's why many people buy laser pointers for fun. A laser pointer with a special glass tube makes it look like a real laser sword. Although it's not powerful enough to cut something, it's still very attractive.
●Astronomy enthusiast sometimes choose a bright laser as a astronomy laser pointer to point the stars.
●Common uses of laser beams include DVD and CD players, computer mice, optical scanners and laser printers.Its main function is to indicate that it is usually pointed by hand. If the scene is large enough and the distance is far enough, it is impossible to accurately indicate the distant target, and the laser has monochromaticity and focus. Very good, light effect cool, can shoot very far, completely replace us with the finger to indicate, its visual ability to shoot into the sky, so it is also known as the star artifact, can be used as a tourist guide, sales sand table explanation, outdoor adventure , aviation search and rescue and water, land and air sent out distress signals.