EyeTap - a device that is worn in front of the eye that acts as a camera to record the scene available to the eye as well as a display to superimpose a computer-generated imagery on the original scene available to the eye. Picture: EyeTap inventor Steve Mann wearing a metal frame Laser EyeTap.
Head-up display - a display device, worn on the head or as part of a helmet, that has a small display optic in front of one (monocular HMD) or each eye (binocular HMD). Picture: a man controls Google Glass, a type of Optical head-mounted display, using the touchpad built into the side of the device.
Google glass - a wearable computer with an optical head-mounted display (OHMD) that is being developed byGoogle in the Project Glass research and development project, with a mission of producing a mass-market ubiquitous computer.
Augmented reality - a live, direct or indirect, view of a physical, real-world environment whose elements are augmented (or supplemented) by computer-generated sensory input. Artificial information about the environment and its objects can be overlaid on the real world.
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