Because of just how expensive it is to invest in high-end VR, companies have worked hard to bring us affordable VR that can run on those handy supercomputers we all carry around in our pockets. Thus, here are the best headsets you can slip your phone into. They're generally wireless and many are under £100, so it's a whole different ball game to the beasts above. Be careful though, certain devices only work with certain phones, so check before putting down any cash.
In 1979, Eric Howlett developed the Large Expanse, Extra Perspective (LEEP) optical system. The combined system created a stereoscopic image with a field of view wide enough to create a convincing sense of space. The users of the system have been impressed by the sensation of depth (field of view) in the scene and the corresponding realism. The original LEEP system was redesigned for NASA's Ames Research Center in 1985 for their first virtual reality installation, the VIEW (Virtual Interactive Environment Workstation) by Scott Fisher. The LEEP system provides the basis for most of the modern virtual reality headsets. https://www.youtube.com/watch?v=rTM8vXtdIUA&t=1s