How does night vision technology work? A Black Hawk helicopter seen through night vision goggles. (Thinkstock)
How does night vision technology work?
Lexile

You asked us, how does night vision technology work?
 
Our eyes allow us to see a wide range of lights, and when the sun goes down, our ability to make out stuff drops off quickly - colors fade, things get fuzzy, till our eyes become useless and we're what goes bump in the night.
 
Cue night vision technology.
 
There are two very cool types. The first is thermal imaging, which registers on the upper portion of the infrared light spectrum. Invisible to humans, this kind of light is emitted as heat by things like warm bodies, recently driven cars and even some chemicals. Thermal imaging devices can see through the fog, smoke and dust.
 
Type number two amplifies available light from the visible spectrum as well as some infrared light, making things look brighter than they appear to the naked eye. Most night vision equipment uses this imaging enhancement technology, though it's useless if it's pitch black.
 
Originally developed to spot enemy targets, night vision is now used for all kinds of things, from military to baby monitors. Because you know, you've got to get the upper hand on these babies.

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CRITICAL THINKING QUESTION
Why would baby monitors use military technology?
Write your answers in the comments section below


COMMENTS (12)
  • erino-6-bar
    4/22/2016 - 12:01 a.m.

    Baby monitors might use military night vision technology because it "amplifies available light from the visible spectrum as well as some infrared light, making things look brighter than they appear to the naked eye" this allows the parents to keep a close eye on the baby even when it is dark, such as during the night.

    I thought this was interesting because I find night vision interesting.

  • holdeno-3-bar
    4/22/2016 - 01:53 p.m.

    Baby monitors would use military technology in order to keep track of babies during the night. As the author explains night vision, he says that "Thermal imaging devices can see through the fog, smoke and dust" (par. 4) In nighttime, there is not much light in the visible spectrum. With regular cameras, one would not be able to see babies. By using night vision, people could see their baby better so they would know where it is.
    I was surprised by this article because it entails the lengths to which people will go in order to watch their kid.

  • rowens-cel
    4/25/2016 - 09:56 a.m.

    Technically, baby monitors don't use military technology. Night vision is simply a technology shared by both baby monitors and the military, showing its widespread use and effectiveness.

  • briannec-ste
    4/25/2016 - 09:27 p.m.

    Night vision is very important for many things, especially the military. Sometimes when they go places they rely on that night vision.

  • TehyaWhite-Ste
    4/27/2016 - 11:51 a.m.

    They may use military technology because they have to pick up signals of where the baby is at and what it is doing and transfer it to the monitor the mom has which is what the military leaders essentially have to do with their enemies.

  • ShawnaWeiser-Ste
    4/27/2016 - 02:09 p.m.

    Night vision is a key component in the military. It is very important to be able to see because if you were unable to see then people would not know where they were going and that would just be awful.

  • julianc-bag
    4/27/2016 - 08:00 p.m.

    I would use this technology to get my way around my house at night.

  • nicholasj-bag
    4/28/2016 - 10:42 p.m.

    A Baby sleeps in the dark but you still need to see them. That is were you could use the military teleology.

  • stephenw-wal
    4/29/2016 - 01:52 p.m.

    Baby monitors use military technology as it is a effective way to see something (like the baby) even when it's dark. Another reason is that just because the military uses that technology doesn't mean that normal citizens couldn't use it to keep their child/ children safe at night.

  • eliset-bag
    5/02/2016 - 10:24 p.m.

    I would use this Technology for going hunting, camping or maybe even for the Military.

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