Development[edit]
Google Glass (2013) and Steve Mann's Digital Eye Glass[15] (1980) on exhibit at the "History of AR Vision" exhibit at the 2013 Augmented World Expo. Both are shown recording video with each device lit up accordingly.
Google Glass was developed by Google X,[16] the facility within Google devoted to technological advancements such as driverless cars.
Google Glass is smaller and slimmer than previous head-mounted display designs.[17]
The Google Glass prototype resembled standard eyeglasses with the lens replaced by a head-up display.[18] In mid-2011, Google engineered a prototype that weighed 8 pounds (3,600 g); by 2013 they were lighter than the average pair of sunglasses.[1]
In April 2013, the Explorer Edition was made available to Google I/O developers in the United States for $1,500.[19]