There are some pretty good images of the AN/PVS-15 Night Vision Binocular at Morovision Night Vision. Seems like there aren't many images of this night vision system out there on the web. It's a very good piece of equipment, if you can afford it, particularly if depth perception is of importance to your objective.

Here are some great links to learn about night vision technology:

1. How Night Vision Works by Electrophysics This is a great place to begin learning about light amplification and infrared technologies, the differences, etc.. A very well written and easy to read explanation.
   
2. Principles of Night Vision Technology and Devices - Nivitech This is a much more indepth explanation of the different generations and is almost something of a research paper. It is very thorough and provides excellent night vision information.

Good Learning!