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optical ratio reflector

См. также в других словарях:

  • 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

  • Optical coating — Optically coated mirrors and lenses. An optical coating is one or more thin layers of material deposited on an optical component such as a lens or mirror, which alters the way in which the optic reflects and transmits light. One type of optical… …   Wikipedia

  • Modulating retro-reflector — A modulating retro reflector (MRR) system combines an optical retro reflector and an optical modulator to allow optical communications[1] and sometimes other functions such as programmable signage.[2] Free space optical communication technology… …   Wikipedia

  • Cassegrain reflector — The Cassegrain reflector is a combination of two coaxial reflectors used in Cassegrain telescopes and radio antennas.First developed in 1672 by Laurent Cassegrain, this reflector is a combination of a primary concave mirror and a secondary convex …   Wikipedia

  • Parabolic reflector — Parallel waves coming in to a parabolic mirror are focused at a point F A parabolic reflector (or dish or mirror) is a reflective device used to collect or project energy such as light, sound, or radio waves. Its shape is that of a circular… …   Wikipedia

  • Compact linear Fresnel reflector — Fig.1: Example of a Traditional linear Fresnel reflector with one absorber. A compact linear Fresnel reflector (CLFR) – also referred to as a concentrating linear Fresnel reflector is a specific type of linear Fresnel reflector (LFR) technology.… …   Wikipedia

  • Free space optical communication — In telecommunications, Free Space Optics (FSO) is an optical communication technology that uses light propagating in free space to transmit data between two points. The technology is useful where the physical connection by the means of fibre… …   Wikipedia

  • OSR — can refer to: OSR#1, an industrial chelation agent which had been marketed as a dietary supplement to parents of children with autism Operational sex ratio, ratio of reproductively available males to females Ōban Star Racers, an animated… …   Wikipedia

  • Newtonian telescope — The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton (1642–1727), using a concave primary mirror and a flat diagonal secondary mirror. Newton’s first reflecting telescope was completed in… …   Wikipedia

  • Movie projector — This article is concerned with technical aspects of moving film projection. For non film movie projection, see digital cinema. For historical aspects, see the article history of cinema. 35 mm movie projector in operation …   Wikipedia

  • Antenna (radio) — Whip antenna on car …   Wikipedia

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