Question About Night Vision Equiopment
I have a question about Night Vision Equipment. I know Night vision works by sending out an invisible beam and enhancing that beam. What happens if more then one person is using NV equipment at the same time and in the same area?
I am asking because of a ghost hunting show that was on. In the show several people were using NV equipment and they recorded shadows that looked like people. The shadows appeared in front of near by trees and basically in front of the cameras. Specifically I saw 3 people with goggles, 2 cameras and one thermal camera that also had night vision.
To me this shows that the people using NV behind the camera man were casting beams from several angles that caused shadows from the people around. The show claims that these are shadows of ghost children.
I am posting here because my main question is about night vision equipment; and I want answers about the equipment not about the existence of ghosts.
I was active Army for 6 years and have a good bit of experience with a few NVG models. As to what they were using i cant answer you, but most NVG systems take in infrared light and magnify it so you can see. the device usually has the ability to project a narrow “spot” of IR light if its a moonless night and so on.
Older model NVG devices can produce some interesting things. I was using an old starlight model because my 14’s got broken getting out of a CH-47. Thank god I only had to use them for a few days. The starlight has no grain (fuzz like an old TV) adjustment and looking through them for long periods of time in certain terrain features can produce some “ghosting” effect which is a trick of the ambient light and shadow through the magnification and filtering portion of the device.
All that being said most newer gen 4 or 5 devices have overcome these faults. ps-unless its pitch black (no ambient light) using you IR illuminator A.) makes no sense B.) makes you stand out to anyone else with NVG’s and can interfere with the filters on your buddy’s system, i.e.- overload if you look him in the face while his are turned on.
First hour guest, paranormal investigator Dean Warsing talked about unusual aerial activity and UFOs he’s seen through third-generation Night Vision goggles.
http://www.youtube.com/view_play_list?p=D56DAB10DEF7527A
First hour guest, paranormal investigator Dean Warsing talked about unusual aerial activity and UFOs he’s seen through third-generation Night Vision goggles.
Infrared light can be seen with everyday common items.
The Foster-Miller TALON robot is a small, tracked military robot designed for missions ranging from reconnaissance to combat.
Nature as seen through a first generation night vision device (starlight scope). All shots are made with the use of an infrared illuminator. Starlight scopes work by gathering ambient light (from stars and moon) and infrared light (from the IR illuminator). The light is gathered by a special layer of material that ejects electrons when struck by photons. The electrons pass through a glass vacuum tube through which they are accelerated by electrical fields (powered by the battery). The electrons then strike a phosphorous membrane at speeds higher than their initial speeds (since they’ve been accelerated by electrical fields). The phosphorous membrane in turn releases more photons into the eyepiece than have originally been gathered by the intaking membrane since the electrons that knock out the photons have been accelerated. This is how night vision light aplicfication works. This is totally different from thermal vision which senses the “blackbody radiation” - the heat signature of an object or digital night vision where a CCD sensor is used to convert infrared light to the visible spectrum.
This is a description of a DIY night vision device I built from a CVS one time use digital camcorder. Any questions about it, feel free to message me.
The technology of night vision is based on the use of image intensifiers that converts visible light so that dimly lit scenes can be viewed. Engineers at Electrophysics have designed a modular, three-piece night vision adapter for use on video and photo camera platforms. They’ll explain the variations of night vision and the technologies, including the Gen III Central Intensifier Unit allowing capture below 10^-4 lux, that make seeing in dimly-lit environments possible.
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