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==== 3D visual displays ====
This type of
▲This type of devices are the most popular and its goal is to present the information produced by the system through the human visual system in a three-dimensional way. The main features that distinguish these devices are: field of regard and [[field of view]], [[spatial resolution]], screen geometry, light transfer mechanism, [[refresh rate]] and [[ergonomics]].
Another way to characterize these devices is according to the different categories of [[depth perception]] cues used to achieve that the user can understand the three-dimensional information. The main types of displays used in 3D user interfaces are: monitors, surround-screen displays, workbenches, hemispherical displays, head-mounted displays, arm-mounted displays and autostereoscopic displays. [[Virtual reality headset]]s and CAVEs ([[Cave Automatic Virtual Environment]]) are examples of a fully immersive visual display, where the user can see only the virtual world and not the real world. Semi-immersive displays allow users to see both. Monitors and workbenches are examples of semi-immersive displays.
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