AR glasses: Difference between revisions
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{{see also|Smart glasses|AR Glasses}} | {{see also|Smart glasses|AR Glasses}} | ||
[[File:ar glasses1.jpg|350px|right]] | [[File:ar glasses1.jpg|350px|right]] | ||
'''[[AR glasses]]''' (also known as '''[[augmented reality]] glasses''' or '''[[smart glasses]]''') are wearable [[head-mounted display|head-mounted devices]] that overlay computer-generated imagery, data or 3-D models onto a user’s direct view of the physical world. Unlike [[virtual reality]] (VR) headsets, which occlude outside vision, AR glasses use transparent or semi-transparent optics ([[waveguide]]s, [[prism]]s or [[optical combiner|combiners]]) so the wearer simultaneously sees real surroundings and virtual overlays.<ref name="SynopsysAROptics">Synopsys. "How Do Augmented Reality Optics Work?". Retrieved 30 April 2025. https://www.synopsys.com/glossary/what-is-augmented-reality-optics.html</ref><ref name="VarjoExplained">Varjo. "Virtual Reality, Augmented Reality and Mixed Reality Explained". Retrieved 30 April 2025. https://varjo.com/virtual-augmented-and-mixed-reality-explained/</ref> Modern eyewear integrates miniature [[microdisplay|micro-displays]] (often [[OLED]], [[LCD]], or [[LCoS]]), transparent [[waveguide]] optics, and an array of [[sensor]] | '''[[AR glasses]]''' (also known as '''[[augmented reality]] glasses''' or '''[[smart glasses]]''') are wearable [[head-mounted display|head-mounted devices]] that overlay computer-generated imagery, data or 3-D models onto a user’s direct view of the physical world. Unlike [[virtual reality]] (VR) headsets, which occlude outside vision, AR glasses use transparent or semi-transparent optics ([[waveguide]]s, [[prism]]s or [[optical combiner|combiners]]) so the wearer simultaneously sees real surroundings and virtual overlays.<ref name="SynopsysAROptics">Synopsys. "How Do Augmented Reality Optics Work?". Retrieved 30 April 2025. https://www.synopsys.com/glossary/what-is-augmented-reality-optics.html</ref><ref name="VarjoExplained">Varjo. "Virtual Reality, Augmented Reality and Mixed Reality Explained". Retrieved 30 April 2025. https://varjo.com/virtual-augmented-and-mixed-reality-explained/</ref> Modern eyewear integrates miniature [[microdisplay|micro-displays]] (often [[OLED]], [[LCD]], or [[LCoS]]), transparent [[waveguide]] optics, and an array of [[sensor]]s: [[RGB camera|RGB]]/[[depth camera|depth cameras]], an [[inertial measurement unit]] (IMU), [[eye tracking|eye-trackers]], and sometimes [[LiDAR]]. All driven by low-power [[system-on-chip|SoCs]]. Real-time [[simultaneous localization and mapping]] (SLAM) locks holograms to the environment while voice, [[hand tracking|hand-tracking]] or gaze serves as input.<ref name="SLAMBenchmark">Sarlin P. et al. (2022). "LaMAR – Benchmarking Localization and Mapping for Augmented Reality". Proceedings of ECCV 2022. https://link.springer.com/chapter/10.1007/978-3-031-20071-7_40 https://lamar.ethz.ch/</ref> In this way AR glasses provide hands-free, heads-up access to information – for example showing navigation cues, text annotations, or [[3D model]]s superimposed on actual objects – without obscuring the user’s natural vision. | ||
AR glasses come in various [[form factor]]s (from bulky [[headset]]s to slim [[spectacles]]) but typically resemble ordinary eyewear. Some experimental prototypes like the AirySense system (shown above) allow a wearer to see and manipulate virtual objects as though they were real. Because the hardware must balance optics, electronics, and power in a compact package, current devices range from one-eye displays to full pair-of-glasses designs. In either case, all employ specialized optics (such as [[holographic waveguide|holographic]] or [[diffractive waveguide|diffractive]] [[waveguide]]s) to focus virtual images at a comfortable viewing distance while still letting the user see the world around them.<ref name="SynopsysAROptics" /><ref name="ARDisplaysReview">Xiong J. et al. (2021). "Augmented reality and virtual reality displays: perspectives and challenges". Light: Science & Applications. 10 (1): 216. doi:10.1038/s41377-021-00658-8</ref> | AR glasses come in various [[form factor]]s (from bulky [[headset]]s to slim [[spectacles]]) but typically resemble ordinary eyewear. Some experimental prototypes like the AirySense system (shown above) allow a wearer to see and manipulate virtual objects as though they were real. Because the hardware must balance optics, electronics, and power in a compact package, current devices range from one-eye displays to full pair-of-glasses designs. In either case, all employ specialized optics (such as [[holographic waveguide|holographic]] or [[diffractive waveguide|diffractive]] [[waveguide]]s) to focus virtual images at a comfortable viewing distance while still letting the user see the world around them.<ref name="SynopsysAROptics" /><ref name="ARDisplaysReview">Xiong J. et al. (2021). "Augmented reality and virtual reality displays: perspectives and challenges". Light: Science & Applications. 10 (1): 216. doi:10.1038/s41377-021-00658-8</ref> | ||