Photocathode - Night Vision

[speedgnom]

Good day gentlemen.

I have a question to ask all of you. I have been very interested in night vision technologies and I wish t ask some of you for help.
I am trying to create a passive night vision. The kind that uses image intensifier, but here is the problem. The intensifier consists of a photocathode that turn light into electrons, a microchannel plate that is used to amplify the electrons discharged from the photocathode and a phosphorus screen that is used to catch the many electrons and turn them into light.
Now my question is how can I make these 3 important parts if its even possible for an average person?

 

[duke37]

One part you have left out is the very high vacuum. You could go to outer space to collect some.

 

[(*steve*)]

In terms of manufacture, it will be somewhat more complex than this.

(Note they manufacture a vacuum rather than going out and collecting some.)