Visual cone

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Related to Visual cone: Cone eye
(Persp.) a cone whose vertex is at the point of sight, or the eye.

See also: Visual

References in periodicals archive ?
There follows a discussion of the appearance of a continuous and infinite row of columns and the limits of vision at the vertex of the visual cone.
Additionally, scanning for traffic usually is limited in practice to the area directly ahead, perhaps with-in a 60-degree visual cone.
For a two-to-one speed ratio, the faster airplane can only collide with targets located within an approximately 60-degree visual cone in front of the faster aircraft, with no blind spots above or below.