Amazon could be working on augmented reality glasses, too

Facebook has the Oculus Rift, Microsoft has the HoloLens, and Google still has Google Glass (just about) - most of the big names in technology are working on an augmented or virtual reality headset of some kind, and it looks like Amazon wants in on the action too.A filing just published by the US Patent and Trademark Office shows Jeff Bezos and his team are at least thinking about it: the patent application shows a pair of smart glasses that could potentially display video in front of the eyes o