Guys I wanna Make a DIY Night Vision

I think the main obstacle here is the web cam. You have to establish if the web cam can detect infra red light, it is not a case of filtering out light waves. The camera has to have a IR setting or be a dedicated IR camera to pick up the IR wave length.

I have had a look on e-bay and found the following item:
Sony Web Cam and USB IR blaster KDL-55W955B KD-49X8505B.
This may help you. Though your idea is cutting edge and think you are trail blazing here. You will have to find your own way.

The following link from Snypercat may help you as she covers IR ilumnation. 

http://youtu.be/8zAaENXagP8

If you are successful in this enterprise you will have created night vision at an affordable cost to all. I wish you the best in this enterprise.
Regards

Test your camera by going to a dark place, pointing your tv remote at it and pushing buttons. If you see a flashing light then your camera can see IR. I've seen a few wireless cameras on the market, but all I've payed attention to require WiFi and don't connect directly to a phone.

I I have been testing my DIY night vision in the last few days. Need to set the scope and battery onto the rifle and mount the illuminator. Video isn't the best as camera was lying on the window sill and video taken with the iPad. Distance was 40 yards with no light source other than the set up and illuminator. 
Camera is an e700 in a sure24 mounting that screws into the back of the MTC Mamba scope
light source is a black sun T20
rifle is an Air Arms TDR in.22 with a 4-12 Mamba scope

This is the camera mounted on the back of the scope

Sure


http://www.sure24.co.uk/solutions/night-vision/kpc-e700-tft-camera-tft5-bundle.html#tabs2
MTC Mamba scope as Sure24 do an adapter kit that screws into the back to give a really neat look, the adapter will also screw into the Hawke scopes but made for MTC

http://www.sure24.co.uk/solutions/hunting-shooting-fishing/kpc-e700mtc-a-mtc-adaptor.html
you will need the 2 halves or make your own housing for the camera

battery is a Chinese one off eBay but depending on how long it lasts in the field I may upgrade

IR Illuminator is a T20 with black sun pill
http://www.nightvisionstore.co.uk/black-sun-b20-ir-illuminator-c2x17313859

now its its all on the rifle I will be using for night hunting the screen picture is superb
All I bought then was 2 adapters to fix the screen and the Illuminator to the scope

Mine.....I went for all in one "add-on" (compact being a priority). Next will be a taco or futon build.
I cut/soldered all wires, ran braid & shrink wrapped the ends. (I hate wires that will tangle).

Very tidy, nice job. Not got round to cable sorting yet