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

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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. It ends with a brief critique of Panofsky's take on Lucretius and reflection.
Additionally, scanning for traffic usually is limited in practice to the area directly ahead, perhaps with-in a 60-degree visual cone. This is a habit we've learned from years of driving on relatively narrow, well-defined roads and through intersections where all relevant traffic is clearly visible, more or less dead ahead of us.
The higher the relative speed, the narrower the scan-demand angle (visual cone) within which the target will be located, and the more frequently (and thoroughly) that field can be checked.