The angle of vision is the angle at which a viewed object is perceived. The reciprocal of the angle of vision is the visual acuity (Visus) and therefore, among other factors, a measure of the legibility of writing.
The angle of vision is the angle at which a viewed object is perceived. The reciprocal of the angle of vision is the visual acuity (Visus) and therefore, among other factors, a measure of the legibility of writing.
Good to know: The unit of the angle of vision å is specified in angular minutes. An angle of one degree can be divided into 60 angular minutes (1' = 1/60°).