Very compact thermal rifle sight laser pointer

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…

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…

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…

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 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…