inverting prism

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• Prism telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …   The Collaborative International Dictionary of English

• Inverting [reversal, reversing] prism — Оборачивающая призма …   Краткий толковый словарь по полиграфии

• Amici roof prism — An Amici roof prism, named for its inventor, the Italian astronomer Giovanni Amici, is a type of reflecting prism used to deviate a beam of light by 90° whilst simultaneously inverting the image. It is commonly used in the eyepieces of telescopes …   Wikipedia

• Photostat® —    A commercial reproduction in which a negative copy, white writing on a black background, is made directly on photosensitive paper. The process employs a special camera equipped with a lens and inverting prism. The inverting prism causes the… …   Forensic science glossary

• Point groups in three dimensions — In geometry, a point group in three dimensions is an isometry group in three dimensions that leaves the origin fixed, or correspondingly, an isometry group of a sphere. It is a subgroup of the orthogonal group O(3), the group of all isometries… …   Wikipedia

• High speed photography — [ Eadweard Muybridge, first published in 1887.] High Speed Photography is the science of taking pictures of very fast phenomena. In 1948, the Society of Motion Picture and Television Engineers (SMPTE) defined high speed photography as any set of… …   Wikipedia

• Pentaprism — A pentaprism is a five sided reflecting prism used to deviate a beam of light by 90°. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image… …   Wikipedia

• Dumpy level — Automatic level in use on a construction site Leveler for use by hand …   Wikipedia

• Achromatic telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …   The Collaborative International Dictionary of English

• Aplanatic telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …   The Collaborative International Dictionary of English

• Astronomical telescope — Telescope Tel e*scope, n. [Gr. ? viewing afar, farseeing; ? far, far off + ? a watcher, akin to ? to view: cf. F. t[ e]lescope. See {Telegraph}, and { scope}.] An optical instrument used in viewing distant objects, as the heavenly bodies. [1913… …   The Collaborative International Dictionary of English