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Joseph von Fraunhofer

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Joseph von Fraunhofer
Born6 Mairch 1787(1787-03-06)
Straubing, Electorate o Bavarie
Dee'd7 Juin 1826(1826-06-07) (aged 39)
Munich, German Confederation

Joseph Ritter von Fraunhofer (6 Mairch 1787 – 7 Juin 1826) wis a German optician.

He is kent for discoverin the dark absorption lines kent as Fraunhofer lines in the Sun's spectrum, an for makkin excellent optical gless an achromatic telescope objectives.