<unk>  both eyes Vertical<unk>  Angle of view can be measured horizontally, vertically, or diagonally. A 360-degree panorama of the Milky Way at the Very Large Telescope. In the image, the Milky Way appears like an arc of stars spanning horizon to horizon with two streams of stars seemingly cascading down like waterfalls. The<unk>  <unk>  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.
Field of view
Field of View
Potential space
Gantry 
Dose profile
K-space 
Surface probability
Input and output 