MIT Explores Cheap HUD Technology

[Grey Havoc]

http://www.flyingmag.com/pilots-places/pilots-adventures-more/mit-explores-cheap-hud-technology

http://www.youtube.com/watch?feature=player_embedded&v=0aw58MUciWw

 

[Spook]

Seems Interesting!

 

[Maury Markowitz]

I don't think this was all that expensive either:

https://en.wikipedia.org/wiki/Aiken_tube