Glossary

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Haptic Device(also: Haptic Interface, Force-Feedback Device, Tactile Device)

A hardware device that provides tactile or force feedback to users, enabling them to feel virtual objects, textures, resistance, or vibrations. Haptic devices range from simple vibration motors in smartphones to sophisticated force-feedback systems like the Geomagic Touch…

Haptic Handle(also: Tactile handle)

A grip on a mobility or guidance device (robot, smart cane, haptic rein, etc.) that conveys information to the user through touch — typically via buttons, vibrotactile feedback, or physical coupling to the device's motion. On suitcase-shaped navigation robots for blind users, a…

Head-Mounted Display(also: HMD, VR Headset, AR Headset)

A wearable device worn on the head that places a display in front of the user's eyes to present virtual or augmented content. HMDs range from fully immersive VR headsets (like Meta Quest) that replace the visual environment to AR glasses that overlay digital information on the…

Head-Mounted Display (HMD)(also: HMD, Head-Mounted Display, Smart Glasses)

A display device worn on the head that places visual content in front of one or both eyes. Head-mounted displays include AR smart glasses (like Vuzix Blade), VR headsets, and mixed reality devices. In accessibility applications, HMDs can present captions, sign language…

Head-mounted display(also: HMD, Smart glasses, Head-worn display)

A wearable device that positions a display in front of one or both eyes, either overlaying digital content onto the real world (optical see-through) or replacing the visual field with a camera-captured and digitally processed view (video see-through). For people with low vision,…

HoloLens(also: Microsoft HoloLens)

A self-contained, wearable mixed reality headset developed by Microsoft that overlays interactive holograms onto the user's real-world environment. HoloLens uses spatial mapping, gaze tracking, gesture recognition (air-tap), voice commands, and a physical clicker for…

Human Interface Device(also: HID, Input Device, Peripheral)

Any device used to facilitate interaction between a human and a computer, including keyboards, mice, trackballs, joysticks, touchscreens, switches, and eye-tracking systems. The USB HID standard defines a protocol for these devices that enables plug-and-play compatibility. For…

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