4. Portable interfaces

4.1 Features of a video headset

These portable interfaces are mainly headsets and digital tablets. The latter are rarely used in VR applications. They can sometimes be used as accessory control devices for VR applications, via interaction metaphors.

For over a quarter of a century, companies have been designing and supplying video headsets. The first models were very rudimentary, with LCD mini-displays, or very expensive, exploiting cathode ray tube (CRT) mini-displays, very expensive to manufacture for a niche market. However, with the development of smartphone technologies and their very large market, it is now possible to manufacture better-quality, relatively low-cost headsets. There are various constraints on the design of any visiocom headset, including...