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

Joseph von Fraunhofer
Fraunhofer 2.jpg
Born 6 Mairch 1787(1787-03-06)
Straubing, Electorate o Bavarie
Died 7 Juin 1826(1826-06-07) (aged 39)
Munich, German Confederation

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.