The most frequently asked question by pupils is “How far is a laser-pointer’s range?”. A 1W blue laser could easily cover as far as 450 miles and can be useful in presentations. The beam can be aimed in many directions, including at moving vehicles. But a high-power laser could extend its beam to the point that it is unable to be seen from the vehicle. In these situations the use of a laser with a higher power can be used.
The power of the laser beam from a pointer varies. A laser with a power of 200mW can be seen from over one mile. A 1000mW red laser could be visible for ten miles away. Some lasers have a shorter range. According to ScienceDaily.com the world’s largest laser measures 270 kilometers. It’s worth noting that a projectile, also known as a “laser” in space will continue to produce light as long as it strikes something. The green laser, however, will only show a small area of a room.
If you’re concerned about security, you may prefer a green laser pointer. It’s as bright a 100-watt light bulb at three feet, however, it’s brighter than a quarter moon when looking upwards from the distance of 40,000 feet. A green laser pointer, however is not safe to use. You should always buy an authentic brand. If you’re unsure you should read reviews, and ask friends and family about any incidents they’ve experienced using these devices.
While laser pointers are able to travel for long distances, their range is only limited. This is due to the fact that they may be too powerful in relation to the distance they reach. You’ll want to keep them in a sealed enclosure to stop accidental spills. Also, while you’re there make sure to verify the capabilities of the laser. It’s a great method to ensure safety and avoid an unsafe situation!
There are many different methods to calculate the distance a laser can travel. It is estimated that the distance from Earth to Moon will be 238 miles and you can find one with a power of 5500mW. It’s possible to use the 50mW laser, and it will perform at least as well as it’s intended to. Using a 5mW laser pointer could be risky and distracting.
Laser pointers are designed to operate at a low power level. If you own one that’s a few thousand milliwatts, you can see it for up to 1 mile. If you’re on aircraft, you could be impossible to see the laser pointer unless it’s focused on your eyes. If you’re in the middle of nowhere, the light from the laser pointer can be seen far away.