Here is a functionnal Night Vision Helmet, using InfraRed Led, that allows you to be the only one that see everything arround you, when no one can see anything...

This is only the 3D Printed parts, to make this project, wou'll need:

• To modify a sport camera (type gopro) by removing the InfraRed filter (there is a lot of tutorials on YouTube, I made it by myself, with one of those tutorials)

• A 42mm diam converging lens (foundable in all cheap VR Headset)

• A 20x20mm InfraRed Led (near InfraRed, you can buy it on Banggood for cheap)
• A 20x20x20mm heatsink (otherwise the InfraRed Led is getting warm quickly)

• A 25x25x11mm RC fan (this 3 article are founable for cheap on Banggood)

• An old skate helmet (on wich you will screw all the parts)

The dovetails (stoppable with M5 bolt) allows you to ajust the ocular on your eye.
The Led / Fan are running 5v, I've simply connected them on a USB plug, and use a cheap powerbank.
Others holes are made for 3x16mm screw.
The camera holder helmet fix is made for a 4mm axis.

Some links if you don't want to make researchs, of all I've bought :

The Camera : https://www.amazon.fr/Campark-ACT74-%C2%B0Grand-Angle-Batterie-dAccessoires/dp/B01J51W5QG/ref=sr_1_fkmr0_1?ie=UTF8&qid=1535474143&sr=8-1-fkmr0&keywords=xtrem+campark

A cheap Vr Headset : https://www.amazon.fr/Tepoinn-Lunette-Virtuelle-Compatible-Smartphones/dp/B079L4FPB6/ref=sr_1_20_sspa?ie=UTF8&qid=1535474964&sr=8-20-spons&keywords=casque+vr&psc=1

The IR Led : https://www.banggood.com/fr/High-Power-10W-Infrared-IR-840-850nm-SMD-LED-Chip-Light-Lamp-DIY-4_5-5V-p-1117479.html?rmmds=search&cur_warehouse=CN

The Heatsink (I had to recut it) : https://www.banggood.com/fr/5pcs-40x40x20mm-Aluminum-Heat-Sink-Heat-Sink-For-CPU-LED-Power-Cooling-p-1342543.html?rmmds=search&cur_warehouse=CN

The Fan : https://www.banggood.com/fr/Hobbywing-5V-7V-150A-DC-Cooling-Fan-For-RC-Model-Motor-ESC-253040mm-Power-Transfer-p-1067266.html?rmmds=search&ID=47282&cur_warehouse=CN

Yes, I'm french and I'm 18, but making things is a real hobby x)