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[[File:Field of View of Human Eye.jpg|thumb|250px|The size and shape of someone's right eye field of view]]
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[[File:Field of View of Human Eye.jpg|thumb|The size and shape of a right eye field of view]]
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'''Field of view''' is the observable visual extent of a view. It is usually measured in degrees.
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A '''field of view''' is an area that can be seen by the eye. It is a [[visual space]]. It is the observable visual extent of a view. It is the space on the retina that is taken by something. Its spatial extent can be measured approximately using an angular measurement, for example using degrees.
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The field of view of a normal computer screen is approximately the center third of the vision. Either desktop or laptop.
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==Head mounted displays==
Virtual reality headsets typically have a field of view of at least 90 degrees. The higher an [[HMD]]'s FOV is, the further the virtual world will extend to your edge of vision, also known as the [[visual periphery]].
Virtual reality headsets typically have a field of view of at least 90 degrees. The higher an [[HMD]]'s FOV is, the further the virtual world will extend to your edge of vision, also known as the [[visual periphery]].
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The field of view of a normal computer screen is approximately the center third of the vision. Either desktop or laptop.
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The field of view of a head mounted display needs to be higher than a world-fixed screen to be comfortable. This is because when you turn your head with a headset, the content stays fixed in the world and gets cut off at the sides in your periphery. This is highly noticable with the [[Magic leap 1]] and [[Hololens 1]].
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The field of view of a head mounted display needs to be higher than a world-fixed screen to be comfortable. This is because when you turn your head with a headset, the content stays fixed in the world and gets cut off at the sides in your periphery. This is highly noticable with the [[Magic leap 1]] and [[Hololens 1]].
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==References==
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{{Reflist}}
[[Category:Virtual reality]]
[[Category:Virtual reality]]
[[Category:Human-computer interaction]]
[[Category:Human-computer interaction]]