<P> The field of view is the extent of the observable world that is seen at any given moment . In the case of optical instruments or sensors it is a solid angle through which a detector is sensitive to electromagnetic radiation . </P> <P> In the context of human vision, the term "field of view" is typically only used in the sense of a restriction to what is visible by external apparatus, like when wearing spectacles or virtual reality goggles . Note that eye movements are allowed in the definition but do not change the field of view . </P>

What does the term field of view mean