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point source of light

См. также в других словарях:

  • Point source — For other uses, see Point source (disambiguation). A point source is a single identifiable localized source of something. A point source has negligible extent, distinguishing it from other source geometries. Sources are called point sources… …   Wikipedia

  • point source — noun a concentrated source (especially of radiation or pollution) that is spatially constricted • Hypernyms: ↑beginning, ↑origin, ↑root, ↑rootage, ↑source * * * I. noun : a source of light or other radiation that is concentrated at a point …   Useful english dictionary

  • Point source pollution — A point source of pollution is a single identifiable localized source of air, water, thermal, noise or light pollution. A point source has negligible extent, distinguishing it from other pollution source geometries. The sources are called point… …   Wikipedia

  • point-source lamp — taškinė lempa statusas T sritis fizika atitikmenys: angl. point lamp; point light lamp; point source lamp vok. Punktlampe, f; Punktlichtlampe, f rus. точечная лампа, f pranc. lampe à source de lumière ponctuelle, f; lampe ponctuelle, f; lampe… …   Fizikos terminų žodynas

  • point source — In photometry, a very small source of light that is regarded as a geometric point from which light emanates in straight lines in all directions …   Medical dictionary

  • point source — noun Date: 1903 1. a source of radiation (as light) that is concentrated at a point and considered as having no spatial extension 2. an identifiable confined source (as a smokestack or wastewater treatment plant) from which a pollutant is… …   New Collegiate Dictionary

  • point source — noun Physics a source of energy, such as light or sound, which can be regarded as having negligible dimensions …   English new terms dictionary

  • light — light1 lightful, adj. lightfully, adv. /luyt/, n., adj., lighter, lightest, v., lighted or lit, lighting. n. 1. something that makes things visible or affords illumination: All colors depend on light. 2. Physics …   Universalium

  • Light-emitting diode — LED redirects here. For other uses, see LED (disambiguation). Light emitting diode Red, pure green and blue LEDs of the 5mm diffused type Type Passive, optoelectronic Working principle Electr …   Wikipedia

  • Source — may refer to:Film and television* The Source (documentary) , a 1999 documentary movie about the Beat generation * The Source (film) , a 2002 science fiction movie, also known as The Secret Craft in the UK and The Surge for its American DVD… …   Wikipedia

  • Light — (l[imac]t), n. [OE. light, liht, AS. le[ o]ht; akin to OS. lioht, D. & G. licht, OHG. lioht, Goth. liuha[thorn], Icel. lj[=o]s, L. lux light, lucere to shine, Gr. leyko s white, Skr. ruc to shine. [root]122. Cf. {Lucid}, {Lunar}, {Luminous},… …   The Collaborative International Dictionary of English

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