Hey guys, sorry for not writing blog for so long, well don't worry, I am back..
Well lets leave the joke behind, and talk about something, that is interesting. Do you wonder about how things actually work. Did you ever gave a thought about spy movies which show actor uses Goggles to see dark building and trees in moonlight, aren't you inquisitive? Do you know how Night Vision Goggles work?
Technically speaking, there are two types of technologies used in this, which are as follows:
One of the technology is collecting the tiny amount of light, and the lower portion of the infrared light spectrum which are imperceptible to our eyes. This overall process amplifies it to a point, so that we can see the object in night, and this is called image enhancement.
Another technology which operates is thermal imaging which is operated by emitting heat while capturing upper portion of the infrared light spectrum.
Well lets leave the joke behind, and talk about something, that is interesting. Do you wonder about how things actually work. Did you ever gave a thought about spy movies which show actor uses Goggles to see dark building and trees in moonlight, aren't you inquisitive? Do you know how Night Vision Goggles work?
Night Goggles works, they are real. You will be fascinated to know the fact this night vision equipment works over 200 yards away from moonless, or say cloudy night. Night Goggles in technical terms uses a single intensifier tube with twin eyepieces, which provide true stereo vision by utilizing image tubes for each eye.
Important stuff to know is dim light which are made of particles called photons, enters the lens. These photons strike the photocathode. Photocathode is a light-sensitive surface which converts photons into electrons, these are tiny, subatomic particles carrying electricity round a circuit. How does electrons multiply? It is only by photomultipiler. Each electron enters the photomultiplier which results in more electrons. Finally, we come to a bright and clear original scene in night, when these electrons which enters the photomultiplier hit a phosphor screen and create small flashes of light. More and more photons enters the screen and you see a clear and bright picture.
Technically speaking, there are two types of technologies used in this, which are as follows:
One of the technology is collecting the tiny amount of light, and the lower portion of the infrared light spectrum which are imperceptible to our eyes. This overall process amplifies it to a point, so that we can see the object in night, and this is called image enhancement.
Another technology which operates is thermal imaging which is operated by emitting heat while capturing upper portion of the infrared light spectrum.
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