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NOBLEX E-Optics GmbH, formerly Docter Optics, is a German manufacturer of optics, including binoculars, rifle scopes, spotting scopes, red dot sights, flashlights and reading glasses. Its headquarters are in Eisfeld, Thuringia, Germany, where most of the products are developed and manufactured. Docter is part of the Analytik Jena Group. [1]
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This formula gives the best-case resolution performance and is valid only for perfect optical systems. The presence of aberrations reduces image contrast and can effectively reduce the system spatial cutoff frequency if the image contrast falls below the ability of the imaging device to discern. The coherent case is given by
The term "optometry" comes from the Greek words ὄψις (opsis; "view") and μέτρον (metron; "something used to measure", "measure", "rule").The word entered the language when the instrument for measuring vision was called an optometer, (before the terms phoropter or refractor were used).
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The Black Hole is a 1979 American science fiction film directed by Gary Nelson and produced by Walt Disney Productions.The film stars Maximilian Schell, Robert Forster, Joseph Bottoms, Yvette Mimieux, Anthony Perkins and Ernest Borgnine, while the voices of the main robot characters are provided by Roddy McDowall and Slim Pickens (both uncredited).
Ian William Richardson (7 April 1934 – 9 February 2007) was a Scottish actor. He was best known for his portrayal of machiavellian Conservative politician Francis Urquhart in the BBC's House of Cards (1990–1995) television trilogy, as well as the pivotal spy Bill Haydon in Tinker Tailor Soldier Spy (1979).