Using the touch pad built on the side of the 2013 Google Glass to communicate with the user's phone using Bluetooth.
Man wearing a 1998 EyeTap, Digital Eye Glass.
Baby Eve with Georgia for the Breastfeeding Support Project

Smartglasses or smart glasses are wearable computer glasses that add information alongside or to what the wearer sees.

- Smartglasses

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Google Glass

Google Glass Explorer Edition
Google Glass Explorer Edition
A Glass prototype seen at Google I/O in June 2012
Google Glass can be controlled using the touchpad built into the side of the device
A Google Glass with black frame for prescription lens.
Two participants in the Google Glass Breastfeeding app trial.
The Explorer's LCoS display is illuminated using sequential color LEDs that pass through a 
polarization conversion system, a polarizing beam splitter, a half-silvered mirror, and an anastigmat, collimating reflector formed on the nose end of the optical assembly.

Google Glass, or simply Glass, is a brand of smart glasses—an optical head-mounted display designed in the shape of a pair of glasses.


Japanese multinational electronics company and one of the world's largest manufacturers of computer printers and information- and imaging-related equipment.

Epson America headquarters in Los Alamitos, California
The Epson HX-20
Epson Photo inkprinter R2000
R-D1, Digital Rangefinder Camera
SureColor, ink printer for big sizes Photokina, 2016
Epson LX-300+ dot matrix printer, with optional colour upgrade

Epson is also involved in the smartglasses market.

Augmented reality

Interactive experience of a real-world environment where the objects that reside in the real world are enhanced by computer-generated perceptual information, sometimes across multiple sensory modalities, including visual, auditory, haptic, somatosensory and olfactory.

Virtual Fixtures – first AR system, U.S. Air Force, Wright-Patterson Air Force Base (1992)
Man wearing smartglasses
Headset computer
The AR-Icon can be used as a marker on print as well as on online media. It signals the viewer that digital content is behind it. The content can be viewed with a smartphone or tablet
An example of an AR code containing a QR code
10.000 Moving Cities, Marc Lee, Augmented Reality Multiplayer Game, Art Installation
An AR mobile game using a trigger image as fiducial marker
Augmented reality system for soldier ARC4 (U.S. Army 2017)
Circular review system of the company LimpidArmor
LandForm video map overlay marking runways, road, and buildings during 1999 helicopter flight test

AR hardware and software for use in fitness includes smart glasses made for biking and running, with performance analytics and map navigation projected onto the user's field of vision, and boxing, martial arts, and tennis, where users remain aware of their physical environment for safety.


American-Italian brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb.

Ray-Ban 3025 Large Metal Aviator (polarized lenses)
Ray-Ban 3139 Shooter (G-15 lenses)
Ray-Ban W163 Outdoorsman (B-20 Chromax lenses)
1968 Ray-Ban Outdoorsman advertisement
Ray-Ban 2132 901L Wayfarer
Ray-Ban 3016 Clubmaster
Ray-Ban 2447 Round Fleck Icons
Ray-Ban 5277 prescription eyeglasses frame
Ray-Ban 4246 Clubround sunglasses in colours of black and gold

In 2021, Ray-Ban commercialized a model of smart glasses that they developed with Facebook Reality Labs called Ray-Ban Stories.

Microsoft HoloLens

Man wearing Microsoft HoloLens

Microsoft HoloLens, known under development as Project Baraboo, are a pair of mixed reality smartglasses developed and manufactured by Microsoft.

Snap Inc.

American camera and social media company, founded on September 16, 2011, by Evan Spiegel, Bobby Murphy, and Reggie Brown based in Santa Monica, California.

In September 2016, the company officially named itself Snap Inc., and unveiled smartglasses known as Spectacles.

Reality Labs

Business of Meta Platforms that produces virtual reality (VR) and augmented reality (AR) hardware and software, including virtual reality headsets such as Quest, and metaverse platforms such as Horizon Worlds.

Oculus Rift DK2 worn at a research showcase (Leap Motion sensor attached to the front)
Lenses inside an Oculus headset
The first-generation Oculus Quest.
The original Oculus Rift.
Oculus Go headset

In September 2021, Reality Labs and Ray-Ban announced Ray-Ban Stories, a collaboration on camera-equipped smart glasses that can upload video to Facebook.


Digital electronic machine that can be programmed to carry out sequences of arithmetic or logical operations automatically.

A human computer, with microscope and calculator, 1952
The Ishango bone, a bone tool dating back to prehistoric Africa.
The Chinese suanpan (算盘). The number represented on this abacus is 6,302,715,408.
The Antikythera mechanism, dating back to ancient Greece circa 150–100 BC, is an early analog computing device.
A slide rule.
A portion of Babbage's Difference engine.
Sir William Thomson's third tide-predicting machine design, 1879–81
Replica of Konrad Zuse's Z3, the first fully automatic, digital (electromechanical) computer.
Colossus, the first electronic digital programmable computing device, was used to break German ciphers during World War II. It is seen here in use at Bletchley Park in 1943.
ENIAC was the first electronic, Turing-complete device, and performed ballistics trajectory calculations for the United States Army.
A section of the Manchester Baby, the first electronic stored-program computer
Bipolar junction transistor (BJT)
MOSFET (MOS transistor), showing gate (G), body (B), source (S) and drain (D) terminals. The gate is separated from the body by an insulating layer (pink).
Diagram showing how a particular MIPS architecture instruction would be decoded by the control system
Magnetic-core memory (using magnetic cores) was the computer memory of choice in the 1960s, until it was replaced by semiconductor memory (using MOS memory cells).
Hard disk drives are common storage devices used with computers.
Cray designed many supercomputers that used multiprocessing heavily.
Replica of the Manchester Baby, the world's first electronic stored-program computer, at the Museum of Science and Industry in Manchester, England
A 1970s punched card containing one line from a Fortran program. The card reads: "Z(1) = Y + W(1)" and is labeled "PROJ039" for identification purposes.
The actual first computer bug, a moth found trapped on a relay of the Harvard Mark II computer
Visualization of a portion of the routes on the Internet


Windows Mixed Reality

Platform introduced as part of the Windows 10 and 11 operating system, which provides augmented reality and mixed reality experiences with compatible head-mounted displays.

Simulated image of Windows Mixed Reality on Microsoft HoloLens

The premier device for Windows Mixed Reality, Microsoft HoloLens is a smart-glasses headset that is a cordless, self-contained Windows 10 computer running Windows 10 Holographic.

Virtual retinal display

Display technology that draws a raster display (like a television) directly onto the retina of the eye.

A diagram showing the workings of the virtual retinal display

In 2018, Intel announced Vaunt, a set of smart glasses that are designed to appear like conventional glasses, which use retinal projection via a vertical-cavity surface-emitting laser and holographic grating.