I dont know! I know it's not illegal to own the stuff I just assume there is some law somewhere that a person can get in trouble for having it..?

There's an outfit that makes an image intensifier for use on astronomical telescopes.

It's not cheap, but for some objects it will make your scope seem like it's much larger. The drawbacks are resolution is reduced, and everything will look green.

Here's a link to their web site:

< http://www.ceoptics.com/ >

If you'd like to do your own, the cost effective way is to look for models that will allow you to replace the lens that comes with the device with a camera lens.

Typically, these will take an "M42/universal/pentax screw mount" lens, though some might take a "C mount" lens. Then get an adapter for using your telescope as a camera lens.

But other than the collins system I mentioned above, I don't know of any night vision scopes that allow you to replace the built in eyepiece, so you'd probably be stuck with just one magnification.

can somebody tell me how can i prepare a night vision scope in home.what materials will be needed & how it will be prepared?on what principle does night vision binocular works?

Night Vision devices have components which detect body heat. They sense infrared light. So you would infrared detectors. And lens/mirrors in the infrared region.

The Penal Code refers to a night vision rifle scope as a "sniper scope", and the restrictions regarding possession and use are outlined in section 468. I understand that as currently applied, only the military (like the state has any authority over them anyway) law enforcement or people doing legitimate, verifiable educational research can possess a night vision rifle scope. Simply owning one is considered illegal. It is also my understanding that it need not be designed to be a sighting device, but only that you have the means to attach it to a firearm. You can read the code section by following the link below.