MicroOptical embedded prescription display

Mark Spitzer made these prescription eyeglasses for Thad Starner as an experiment in everyday use. The monochrome display has a nine-degree field of view and 320x240 pixel resolution. The LCD panel is in the earpiece, and the image is reflected through the lens to a concave mirror and beam splitter to reach the wearer’s eye. Google Glass uses a similar optical configuration.
approximately $5000