Augmented Reality & Virtual Reality Market: By Type (AR (Hardware, Software & Services), VR (Hardware, Software & Services)), By Device Type (AR (HMD, HUD), VR (HMD, Gesture Control Device, Projector & Display Wall)), By Technology (AR (Marker, Markerless), VR (Non-Immersive, Semi-Immersive & Fully Immersive)), By End Use Industry (Aerospace & Defense, Retail, Gaming & entertainment, Medical, Commercial & Others), By Geography - Global Opportunity Analysis & Industry Forecast, 2021-2026