Abstract
LONDON. Optical Society, Oct. 10.—T. H. Court and Moritz von Rohr: Development of the telescope (1675–1830). J. Lipperhey was the first to construct a practical telescope for military use in 1608. Galileo developed this type for astronomical purposes. The Capuchin Father v. Schyrle in 1645 printed, in the form of a cryptogram, rules for making an erecting eyepiece made of three collective lenses. Starting from this point the authors trace the development of the telescope in England down to 1830. The invention of the achromatic objective is attributed to Chester Moor Hall in 1733. He kept his invention secret, but it leaked out, and was patented by John IJollond, whose elder son, Peter, brought successful actions for infringement against London opticians. New light is thrown on this ce1ebiated invention and on many others by a careful examination of the instruments and documents in the well-known Court Collection.
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Societies and Academies. Nature 124, 674–675 (1929). https://doi.org/10.1038/124674a0
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DOI: https://doi.org/10.1038/124674a0