Virtual reality
VR is most commonly used in entertainment applications such as gaming and 3D cinema. Consumer virtual reality headsets were first released by video game companies in the early-mid 1990s. Beginning in the 2010s, next-generation commercial tethered headsets were released by Oculus (Rift), HTC (Vive) and Sony (PlayStation VR), setting off a new wave of application development. 3D cinema has been used for sporting events, pornography, fine art, music videos and short films. Since 2015, roller coasters and theme parks have incorporated virtual reality to match visual effects with haptic feedback .
Optical head-mounted display
In January 2013, the Japanese company Telepathy was founded by the augmented reality entrepreneur Takahito Iguchi. At SXSW 2013 the company unveiled the Telepathy One, an eyewear display that consists of a small micro projector to create a virtual 5-inch screen that appears to float in front of the wearer's eye and a built-in micro camera. It uses an OS built off Linux and can connect to other devices via Bluetooth. It allows users to receive e-mails, check updates on social networks, and even share whatever scene the user is looking at with his friends. A Consumer version is expected to hit the US before the 2013 Christmas season.