apochromatic lenses

apochromatic lenses
Physics
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  • Apochromat — An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better color correction than the much more common achromat lenses. Chromatic aberration is the phenomenon of different colors focusing at different distances from …   Wikipedia

  • Schneider Kreuznach — is the abbreviated name of the company Jos. Schneider Optische Werke GmbH, which is sometimes also simply referred to as Schneider. They are a manufacturer of industrial and photographic optics.The company was founded on 18 January 1913 by Joseph …   Wikipedia

  • Rodenstock GmbH — is an optics manufacturer based in Munich, Bavaria, Germany.Rodenstock was founded in 1877 by Josef Rodenstock and specialized in producing high quality optical lenses for cameras and enlargers ( Rodagon, Sironar, Apo Ronar, Grandagon, Apo… …   Wikipedia

  • fluorite — /floor uyt, flawr , flohr /, n. a common mineral, calcium fluoride, CaF2, occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament.… …   Universalium

  • Nikkor — ニッコール Type subsidiary of Nikon Corp Industry Camera lenses Founded Tokyo, Japan (1932) Headquarters Tokyo, Japan …   Wikipedia

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

  • Walter Mandler — (May 10, 1922 April 21, 2005), Famous lens designer of Ernst Leitz Canada (Leica) at Midland, Ontario. Mandler was born on May 10, 1922 in a German farmer family. In 1947 he joined Ernst Leitz at Wetzlar as a lens designer, working with Max Berek …   Wikipedia

  • Rodenstock — Création 1877 Fondateurs Josef Rodenstock Siège social …   Wikipédia en Français

  • Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …   Wikipedia

  • Refracting telescope — A refracting or refractor telescope is a dioptric telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used in other devices such… …   Wikipedia

  • Televue — Tele Vue Optics is a Chester, New York based astronomical optics company known primarily for its premium brand of speciality eyepieces and apochromatic refractor telescopes.Founded in 1977 by Al Nagler, an optical engineer from The Bronx who… …   Wikipedia

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