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WW1 era Galilean type binoculars. Almost from the invention of the telescope in the 17th century the advantages of mounting two of them side by side for binocular vision seems to have been explored. [1] Most early binoculars used Galilean optics; that is, they used a convex objective and a concave eyepiece lens.
Moll, G. (1831). "On the first Invention of Telescopes". Journal of the Royal Institution. 1: 319– 332, 483– 496. This is a shortened English version of Moll's article "Historical research into the first inventors of the binoculars, compiled from the notes of the late professor J.H. van Swinden". New Dissertations of the Royal Dutch Institute.
Ignazio Porro (25 November 1801 – 8 October 1875) was an Italian inventor of optical instruments. Porro's name is most closely associated with the prism system which he invented around 1850 and which is used in the construction of Porro prism binoculars. He also developed a strip camera in 1853 for mapping, which was one of the earliest such. [1]
David Pearsall Bushnell (1913–2005) was an American entrepreneur who founded the Bushnell optics company in 1948. Bushnell made precision binoculars affordable to middle-class Americans for the first time through a strategy of importing from manufacturers who provided optics to his patented specifications.
Joseph Petzval [4] (6 January 1807 – 17 September 1891 [5]) was a mathematician, inventor, and physicist best known for his work in optics.He was born in the town of Szepesbéla in the Kingdom of Hungary (in German: Zipser Bela, now Spišská Belá in Slovakia).
History of Optics (audio mp3) by Simon Schaffer, Professor in History and Philosophy of Science at the University of Cambridge, Jim Bennett, Director of the Museum of the History of Science at the University of Oxford and Emily Winterburn, Curator of Astronomy at the National Maritime Museum (recorded by the BBC
Binoculars: Bushnell sells a wide variety of binoculars and was awarded the Best Buy award from Outdoor Life magazine in 2005 for their Browning Sports Optics binoculars and in 2006 for their Legend binoculars. [22] [23] Microscopes; Telescopes: Bushnell made smaller amateur optical telescopes. Some popular models include the "ARES 5", and the ...
One of REL's best known products were their binoculars. A common 6x30 set was produced to the extent of about 50,000 examples, while a 7x50 set added another 25,000 examples. A very small number, about six, of an experimental 20x72 were also built. [28] Another well known REL product was a series of telescopic sights for the Lee–Enfield No. 4 ...
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