If two countries have soldiers at war and both have infrared high power laser pointer night vision goggles, can’t they see each other’s location? Yes, this is a good question. Since I retired in 2003, because these things are common, my information is a bit limited. In Korea in the mid-1980s, we had passive night vision, called…
Tag: Power
Can laser pointer shoot down hypersonic missiles?
In concept it’s miles possible. In exercise, things are a great deal extra complex. Considering that i am no longer an engineer, please maintain my word. Hypersonic missiles are designed to perform in a flight envelope, which has a totally huge hassle, specifically the running temperature. That is why those motors are normally made of…
The divergence of the laser beam is because the basic physics is related to the laser pointer
Whether it will be realized in eternity depends on the existence of our entire universe. It depends on the intensity and quality (alignment of the green laser pointer), but it is possible. In fact, one experiment was to irradiate a target on the moon with a laser. Compared with the rest of the light from the…
Coherence keeps the laser pointer beam focused at a distance
Why is the laser beam so thin? There is no absolute reason to say that they must be thin. The “green laser pointer” is only light amplified by stimulated radiation, so if you prepare some optical gain medium in its excited state and put in some “seed” light of the correct frequency, it will be…
I am looking at how to use the thin laser pointer beam
I’m not entirely sure what you mean is that thick and wide are two different things. My view on the product described in her link is a device that uses an IR green laser pointer diode as an illumination source, and uses an adjustable zoom lens type device to spread the light from the laser source to…
Provides very obvious clues about the whereabouts of the laser pointer lamp
In this regard, the light pen under consideration can be a green laser pointer or a disposable flashlight, with the same effect. A beam of light that is reasonably focused and collimated, which means that light that reasonably maintains its shape and size within an important distance is invisible for all purposes. Of course, unless you put…
Never point the laser pointer can be in the eyes
How much power does the laser pointer need to emit a visible beam? This is not a question of power, which is equal to the intensity of the laser. A more powerful green laser pointer will make the spot farther and brighter. The laser line used in the building is a spot of light “diffused” through a…
The divergence of the laser pointer beam is usually much smaller than other light sources
We must first determine what we mean by the problem. Because light will not stop spreading. The more interesting question is how far we can see the reflection of the laser under ideal conditions. In complete darkness, when it shines on a white surface, we can see a <5mW 650nm laser from 500-1 km away….
The laser pointer beam behaves differently from other light sources
How accurate is the laser tape measure? More accurate than steel belt. When you measure a distance greater than about 3 meters, the tape will inevitably sag, so the measurement is not very accurate. green laser pointer measurement working at the speed of light does not have any sagging. Obviously the cheaper model is not accurate, but…
The green laser pointer emitting 5W power will be very bright
How powerful is the most powerful laser in the world? As far as I know, the most powerful green laser pointer, the ruby laser, is used by the US Navy. With a power of a few megajoules. They are designed to shoot down all types of incoming missiles. This is derived from memory, and they may…