Definition of Cone of rays. Meaning of Cone of rays. Synonyms of Cone of rays

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Definition of Cone of rays

Cone of rays
Cone Cone, n. [L. conus cone (in sense 1), Gr. ?; akin to Skr. [,c]ana whetstone, L. cuneus wedge, and prob. to E. hone. See Hone, n.] 1. (Geom.) A solid of the form described by the revolution of a right-angled triangle about one of the sides adjacent to the right angle; -- called also a right cone. More generally, any solid having a vertical point and bounded by a surface which is described by a straight line always passing through that vertical point; a solid having a circle for its base and tapering to a point or vertex. 2. Anything shaped more or less like a mathematical cone; as, a volcanic cone, a collection of scori[ae] around the crater of a volcano, usually heaped up in a conical form. Now had Night measured with her shadowy cone Half way up hill this vast sublunar vault. --Milton. 3. (Bot.) The fruit or strobile of the Conifer[ae], as of the pine, fir, cedar, and cypress. It is composed of woody scales, each one of which has one or two seeds at its base. 4. (Zo["o]l.) A shell of the genus Conus, having a conical form. Cone of rays (Opt.), the pencil of rays of light which proceed from a radiant point to a given surface, as that of a lens, or conversely. Cone pulley. See in the Vocabulary. Oblique or Scalene cone, a cone of which the axis is inclined to the plane of its base. Eight cone. See Cone, 1.

Meaning of Cone of rays from wikipedia

- the first optical surface of the system. The entrance pupil is a useful concept for determining the size of the cone of rays that an optical system will...
- primarily determines the cone of rays that an optical system accepts (see entrance pupil). As a result, it also determines the ray cone angle and brightness...
- "a double cone of rays, joined together at the base." In his 1829 A System of Optics, Henry Coddington defines a pencil as being "a parcel of light proceeding...
- of the cone of rays accepted by the microscope objective. The angular size of the central bright portion (radius to first null of the Airy disk) of the...
- medical imaging technique consisting of X-ray computed tomography where the X-rays are divergent, forming a cone. CBCT has become increasingly important...
- A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, or scoria that has been...
- Cone tracing and beam tracing are a derivative of the ray tracing algorithm that replaces rays, which have no thickness, with thick rays. In ray tracing...
- is the half-angle of the maximum cone of light that can enter or exit the lens. In general, this is the angle of the real marginal ray in the system. Because...
- the glowing wall of the tube, indicating the rays were traveling in straight lines. In 1890, Arthur Schuster demonstrated cathode rays could be deflected...
- two cone shaped rays, and a planar radially expanding, elliptically shaped chakram. Mz 3 is a complex system composed of three nested pairs of bipolar...