Most augmented reality glasses incorporate a tiny projector in one arm of the spectacles. The picture is then reflected from the side into the centre of the lenses, which are etched with a reflective pattern that then beams the image into the eye. That means the image is directly incorporated into what the wearer see when looking directly ahead – unlike Google’s current incarnation of Google Glass, which puts a small video screen in the bottom right-hand corner of the right eye. That requires the wearer to look down to focus on it, taking their attention away from the view ahead.
In this review, many different augmented reality vision devices are shown and their features explained. Welcome to the new world of 2013!