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George Dollond (June 10, 1774 – November 30, 1852) was an English optician who constructed optical precision instruments used in astronomy, geodesy and also in navigation. Together with Peter Barlow, he also invented an afocal system to extend the focal length of telescopes, called the Barlow lens. He was born in London, the nephew of the famous optician Peter Dollond. He was the son of John Dolland's daughter, Susan (or Susanne) (1728–1798) who married William Huggins. His father died when he was a child. When George Huggins went into partnership with Peter Dollond in 1805, he changed his name by licence to Dollond. 〔Gloria Clifton, ‘Dollond family (per. 1750–1871)’, ''Oxford Dictionary of National Biography'', Oxford University Press, 2004; online edn, Sept 2013 ( accessed 1 July 2015 )〕 He was elected a Fellow of the Royal Society in December, 1819.〔(【引用サイトリンク】 Library and Archive Catalogue )〕 In 1820 Peter Dollond and George Dollond became opticians to George IV. In the same year, he was one of the founding Fellows of the Royal Astronomical Society. 〔Gloria Clifton, ‘Dollond family (per. 1750–1871)’, ''Oxford Dictionary of National Biography'', Oxford University Press, 2004; online edn, Sept 2013 ( accessed 1 July 2015 )〕 He died at Camberwell Terrace North and was buried at West Norwood Cemetery. ==References== * Rolf Riekher, ''Fernrohre und ihre Meister'', Berlin 1957. (in German) * Gloria Clifton, ‘Dollond family (per. 1750–1871)’, ''Oxford Dictionary of National Biography'', Oxford University Press, 2004; online edn, Sept 2013 ( accessed 1 July 2015 ) (via public library ) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「George Dollond」の詳細全文を読む スポンサード リンク
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