The OpenScope is my attempt to design a simple DIY digital night vision monocular with a 3D printed enclosure and the ability to input and output an analog NTSC/PAL composite video signal.
It features an adjustable camera on the front, a 10mm 200mw IR LED for illumination, a removable battery cover for a 9V battery, and a lens collar that will fit a flexible eye cup (Ninjaflex works good). I've also included an alternate battery box that fits RCA jacks and a 50x50mm laser cut acrylic filter (if you want to see things in green or another color).
The video connection this optic uses could be plugged into an input or an output to use the optic in other ways, like for viewing FPV drone footage, recording video, using with a wireless camera, and more. Hence the term, OpenScope.
For more information about the parts, printing, wiring, and assembly, check out my instructable:
I used Slic3r for the PLA prints and used pillar supports with 1 interface layer.
I used RepG for NinjaFlex eyecup and had to go 15mm/s. 100% infill.