How to make: Night Vision Googles

I am going to tell you that how you can make night vision goggles. Before that I am going to tell you about some basic things. Infrared (IR) is type of light, its wave length is longer than that of visible light that makes it invisible so we can't see it with our naked eyes, but it is visible to cameras.
Like Infrared light is used in TV remote controls, when you press any button of remote control it emits it. this light isn't visible to our eyes but we can see it by using camera as shown below.

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Now how to make night vision goggles by using infrared light? 

1. first take good quality LCD glasses from market, whichs battery lasts longer and has A/V input cables. they are priced around 150$ but it is a good purchase, you can use it for purpose of entertainment as well as in night vision goggles.

   2.   Secondly buy a mini camera which has night vision lens with A/V output. make sure that it is also of good quality. they are usually priced around 20$. 

    3.   Buy a two infrared flash lights they cost around 10$ each. Make sure that they are of high
          intensity,  you can buy expensive ones which has very high intensity for better visibility in
          Dark.

   4.   Now Fix the camera on LCD glasses, and attach each flash light with each strip, power up camera

         by battery, and connect it to LCD glasses. Now your Night vision goggles are ready. turn on flash 

         lights, Now you can see in dark without bieng noticed. This is cheapest way of making Night vision

         goggles.