Fizikos terminų žodynas : lietuvių, anglų, prancūzų, vokiečių ir rusų kalbomis. – Vilnius : Mokslo ir enciklopedijų leidybos institutas. Vilius Palenskis, Vytautas Valiukėnas, Valerijonas Žalkauskas, Pranas Juozas Žilinskas. 2007.
principal point — n either of two points on the principal axis of a lens where the object and image have the same size and are not inverted in relation to each other … Medical dictionary
principal point — noun 1. : the point at which a principal visual ray intersects a perspective plane 2. : either of two points on the axis of a lens so related that a ray from any point of the object directed toward one principal point will emerge from the lens in … Useful english dictionary
point principal de la lentille — pagrindinis lęšio taškas statusas T sritis fizika atitikmenys: angl. principal point of lens vok. Hauptpunkt der Linse, m rus. главная точка линзы, f pranc. point principal de la lentille, m … Fizikos terminų 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 — 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
Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra … Wikipedia
Principal focus — Focus Fo cus (f[=o] k[u^]s), n.; pl. E. {Focuses} (f[=o] k[u^]s*[e^]z), L. {Foci} (f[=o] s[imac]). [L. focus hearth, fireplace; perh. akin to E. bake. Cf. {Curfew}, {Fuel}, {Fusil} the firearm.] 1. (Opt.) A point in which the rays of light meet,… … The Collaborative International Dictionary of English
Point Danger (Australia) — Infobox lighthouse|name=Point Danger location=Gold Coast, Australia caption= coordinates = yearlit= 1971 yeardeactivated= automated= 1971 intensity= elevation= 45 metres range= convert|18|nmi|km|0 foundation= construction= Concrete shape= Four… … Wikipedia
principal foci — points of convergence of rays parallel with the principal axis of a lens, or system: in the eye (approx.) 18 mm from the anterior nodal point, and 24 mm from the posterior nodal point, and holding the ratio of the indices of air and vitreum … Medical 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
