https://www.nightvision.com.au/produ...ion-monocular/
https://www.televue.com/engine/TV3b_page.asp?id=36
It's interesting tec, I looked into them years back, but the military grade stuff wasn't readily available then. They do have a bit of an issue of halos, but certainly work. This new camera with built in ASI air would be absolutely awesome on your scope with images in live mode on your tablet!
https://www.zwoastro.com/product/zwo-asi2600mc-air/