convergent ray — a ray that is approaching a focus; it may be produced by passage through a convex lens or by reflection from a concave mirror … Medical dictionary
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
condensing lens — glaudžiamasis lęšis statusas T sritis fizika atitikmenys: angl. condensing lens; convergent lens; converging lens vok. Positivlinse, f; Sammellinse, f rus. положительная линза, f; собирательная линза, f; собирающая линза, f pranc. lentille… … Fizikos terminų žodynas
converging lens — glaudžiamasis lęšis statusas T sritis fizika atitikmenys: angl. condensing lens; convergent lens; converging lens vok. Positivlinse, f; Sammellinse, f rus. положительная линза, f; собирательная линза, f; собирающая линза, f pranc. lentille… … Fizikos terminų žodynas
Kerr-lens modelocking — (KLM) is a method of modelocking lasers via a nonlinear optical process known as the optical Kerr effect . This method allows the generation of pulses of light with a duration as short as a few femtoseconds.The optical Kerr effect is a process… … Wikipedia
converging lens — noun lens such that a beam of light passing through it is brought to a point or focus • Syn: ↑convex lens • Hypernyms: ↑lens, ↑lense, ↑lens system • Hyponyms: ↑sunglass * * * noun … Useful english dictionary
converging lens — Optics. a lens that converts parallel rays of light to convergent rays and produces a real image. Also called positive lens. Cf. diverging lens. See diag. under lens. * * * … Universalium
Optics and vision — Contents 1 Visual perception 1.1 Human Visual system 1.2 Human eye 1.3 Visual acuity 2 … Wikipedia
Keplerian telescope — instrument for viewing distant objects, the basis for the modern refractive telescope, named after the great German astronomer Johannes Kepler. Its eyepiece, or ocular, is a convex (positive, or convergent) lens placed in back of the focus … Universalium
Galilean telescope — a refracting telescope that forms an erect image, consisting of an objective of relatively long focal length that causes light rays to converge and an eyepiece of short focal length that causes them to diverge. [1715 25] * * * instrument… … Universalium
