spherical aperture


spherical aperture
сферический раскрыв

English-Russian dictionary of telecommunications. 2015.

Смотреть что такое "spherical aperture" в других словарях:

  • Aperture grille — An aperture grille (tension mask) is one of two major technologies used to manufacture color cathode ray tube (CRT) televisions and computer displays; the other is shadow mask.Fine vertical wires behind the front glass of the display screen… …   Wikipedia

  • Numerical aperture — The numerical aperture with respect to a point P depends on the half angle θ of the maximum cone of light that can enter or exit the lens. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes… …   Wikipedia

  • Five hundred meter Aperture Spherical Telescope — FAST , or the Five hundred meter Aperture Spherical Telescope , first proposed in 1994, is a radio telescope to be built by |date=2008 04 21|accessdate=June 23|accessyear=2008] . It will have 4,600 panels and be similar in design to the Arecibo… …   Wikipedia

  • Valvata piscinalis — Photo of a shell of Valvata piscinalis Drawing of a shell of Valvata piscinalis …   Wikipedia

  • Optical aberration — v · d · e Optical aberration …   Wikipedia

  • optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

  • Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …   Wikipedia

  • 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

  • Maksutov telescope — A 150mm aperture Maksutov Cassegrain telescope. The Maksutov is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly spherically… …   Wikipedia

  • microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

  • Anamorphic format — is a term that can be used either for the cinematography technique of capturing a widescreen picture on standard 35 mm film, or other visual recording media with a non widescreen native aspect ratio, or a photographic projection format in which… …   Wikipedia


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