Virtual reality
The 1990s saw the first widespread commercial releases of consumer headsets. In 1991, Sega announced the Sega VR headset for arcade games and the Mega Drive console. It used LCD screens in the visor, stereo headphones, and inertial sensors that allowed the system to track and react to the movements of the user's head. In the same year, Virtuality launched and went on to become the first mass-produced, networked, multiplayer VR entertainment system. It was released in many countries, including a dedicated VR arcade at Embarcadero Center in San Francisco. Costing up to $73,000 per multi-pod Virtuality system, they featured headsets and exoskeleton gloves that gave one of the first "immersive" VR experiences. "Computer Gaming World" predicted "Affordable VR by 1994".
Marcus Weller
Weller invented the Skully AR-1. The AR-1 was to be the first vertically integrated, smart, Heads-Up Display (HUD) helmet for consumers. The HUD system displays at a virtual distance of in front of the rider. The AR-1 was to feature a near 180-degree rear-view camera, turn-by-turn GPS navigation, smartphone pairing and voice control. Weller also served as Skully CEO until July 2016, and the company shut down later the same month.