One of the most frequent questions from learners is “How far is a laser-pointer’s range?”. A blue laser of 1W can easily reach as far as 450 miles and can be useful in presentations. The beam is able to be directed at many different directions, and even towards moving vehicles. But a high-power laser could extend its beam to the point that it’s impossible to be seen from the vehicle. In these instances it is possible for a more powerful laser to be employed.
The power of the laser beam from an object varies. A 200mW green laser can be seen over an entire mile. A red laser of 1000mW can be visible from ten miles away. Certain lasers have a smaller range. According to ScienceDaily.com the world’s largest laser measures 270 kilometers. It’s important to know that a projectile or ‘laser’ in space will continue to emit light until it hits something. The green laser, green laser pointer however, will only show a small area of a room.
If you’re concerned regarding safety, you may want to choose a green laser pointer. It’s as bright an 100-watt light bulb when viewed from three feet away, however, it’s brighter than the quarter moon when you look upwards from the distance of 40,000 feet. Laser pointers that are green, however isn’t appropriate for use. You should always buy an established brand. If you’re unsure then read the reviews and ask friends and family whether they’ve experienced any issues using these devices.
Although laser pointers can go for a long distance however, their range is very limited. This is because they can be too powerful in relation to the distance they reach. You’ll want to keep them in a sealed enclosure to avoid spills that could happen. Also, while you’re there don’t forget to check the range that the laser can reach. This is a great way to ensure safety and avoid danger!
There are many different methods of determining the distance a laser pointer can travel. It is estimated that the distance from Earth to Moon will be 238 miles and it’s possible to locate one that’s powered by 5500mW. It’s possible to use an flint laser of 50mW and work at least as far as it’s supposed to. A laser pointer with 5mW could be risky and can be distracting.
Laser pointers are designed to operate at a lower power level. If you have an optical source that has a few thousand milliwatts, you can see it for as long as one mile. If you’re on aircraft, you may be impossible to see the laser pointer , unless it’s pointed at your eyes. If you’re in the remotest part of the world the light of a laser pointer can be seen from miles away.