The devices can ‘pair’ with smartphones and portable game devices to deliver up-close video – or switch to a translucent ‘augmented reality’ view, where computer information is layered over the world we know.

Crucially, the devices can be worn while moving about – previous bulky ‘VR headsets’ have blindfolded their users and can only be used sitting down.

The effect could be similar to the lenses worn by Tom Cruise in Minority Report.