- principal plane
- A vertical plane that contains the principal point of an oblique photograph, the perspective center of the lens, and the ground nadir. It is the vertical plane containing the optical axis.
Aviation dictionary. 2014.
principal plane
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Principal plane — Principal Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a… … The Collaborative International Dictionary of English
principal plane — n either of the two planes perpendicular to the principal axis and passing through one of the two principal points of an optical system * * * in radiology, the plane which contains the central ray of a radiation beam … Medical dictionary
principal plane — pagrindinė plokštuma statusas T sritis fizika atitikmenys: angl. principal plane vok. Hauptebene, f rus. главная плоскость, f pranc. plan principal, m … Fizikos terminų žodynas
principal plane — pagrindinė plokštuma statusas T sritis Gynyba apibrėžtis Fotogrametrijoje – vertikali plokštuma, kurioje yra pagrindinis įžambiosios nuotraukos taškas, lęšio (fotoaparato) perspektyvinis centras ir antžeminis nadyras. atitikmenys: angl. principal … NATO terminų aiškinamasis žodynas
principal plane — A vertical plane which contains the principal point of an oblique photograph, the perspective center of the lens, and the ground nadir … Military dictionary
principal plane — noun : any of the planes perpendicular to the axis and passing through the principal points of an optical system * * * Optics. a plane that is perpendicular to the axis of a lens, mirror, or other optical system and at which rays diverging from a … Useful english dictionary
principal plane — Optics. a plane that is perpendicular to the axis of a lens, mirror, or other optical system and at which rays diverging from a focal point are deviated parallel to the axis or at which rays parallel to the axis are deviated to converge to a… … Universalium
principal plane of symmetry — a plane of symmetry in a crystal that includes two or more axes of symmetry … Useful english dictionary
Principal — Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a state; the… … The Collaborative International Dictionary of English
Principal axes of a quadric — Principal Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a… … The Collaborative International Dictionary of English
