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The company continued on as before into the 1980s, but the original business model began to wane. Robert split the company into Edmund Scientifics and Edmund Optics. [2] Edmund Scientifics marketed to consumers and specialized in science-themed toys, vaguely high-tech household gadgets, and "science gifts."
When Edmund Scientific introduced the telescope in 1976 they called it "The Edmund Wide-Field Telescope" with a Part Number "2001" [5] Edmund had a public contest which ran until November 15, 1976, to come up with a name. [6] The winning name was "Astroscan 2001". The "2001" part of the name was dropped over time.
Glass chart. A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens.
[1] [2] The two businesses were joined in 1886 into one company that exists in 2015. In 1859, Edmund Johann Krüss, the son of Andres, expanded the company by adding a lens-grinding facility, to produce his own lenses for microscopes, photographic cameras and projectors. He demonstrated the quality of his products in his own photographic studio.
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Optics and Microscopes manufacturer Georges Oberhaeuser was a German optician working in Paris in the early to middle 19th century. His contributions, and the contributions of his partner and successor, Edmund Hartnack , were part of the early development of the microscope as a scientific tool on the European continent.
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.
Ronchi rulings are typically manufactured through photolithographic deposition of metallic chromium on a substrate, which yields a precise, nearly 100% contrast pattern. For a reflective or illuminated type, dark stripes are printed on a diffusely reflecting or translucent substrate, such as a square of white ceramic material or opal glass.
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