paraxial rays
Смотреть что такое "paraxial rays" в других словарях:
paraxial — By the side of the axis of any body or part. * * * par·ax·i·al ( )par ak sē əl adj relating to or being the space in the immediate neighborhood of the optical axis of a lens or mirror <paraxial rays> par·ax·i·al·ly ē adv * * * par·ax·i·al… … Medical dictionary
paraxial — /pəˈræksiəl/ (say puh rakseeuhl) adjective (of light rays) making very small angles with, or lying close to the principal axis of, an optical system. {par(a) 1 + axial} …
optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… … Universalium
ray — 1. A beam of light, heat, or other form of radiation. The rays from radium and other radioactive substances are produced by a spontaneous disintegration of the atom; they are electrically charged particles or electromagnetic waves of extremely… … Medical dictionary
aberration — aberrational, adj. /ab euh ray sheuhn/, n. 1. the act of departing from the right, normal, or usual course. 2. the act of deviating from the ordinary, usual, or normal type. 3. deviation from truth or moral rectitude. 4. mental irregularity or… … Universalium
negative spherical aberration — unequal refraction of light rays by a lens, the peripheral rays being focused farther from the lens than the paraxial rays … Medical dictionary
positive spherical aberration — unequal refraction of light rays by a lens, the peripheral rays being focused closer to the lens than the paraxial rays … Medical dictionary
Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… … Wikipedia
circle of least confusion — physics : the minimum cross section of a symmetrical bundle of rays that have no common focus because of spherical aberration * * * Optics. the smallest cross section in a beam of paraxial rays, lying in the plane of least spherical aberration.… … Useful english dictionary
circle of least confusion — Optics. the smallest cross section in a beam of paraxial rays, lying in the plane of least spherical aberration. [1865 70] * * * … Universalium
Gaussian image — Optics. the point in an optical system with spherical aberration at which the paraxial rays meet. Also called Gaussian image point. * * * … Universalium
