Side view of a flight simulator cross-cockpit collimated visual display system. The principle was developed by the Rediffusion company (Crawley, UK, now part of the Thales Group) in 1982 and is now used by many other flight simulator manufacturers.
<a href="//commons.wikimedia.org/w/index.php?title=User:Ian_W_Strachan&amp;action=edit&amp;redlink=1" class="new" title="User:Ian W Strachan (page does not exist)">Ian W Strachan</a>
<span class="int-own-work" lang="en">Own work</span>