Joseph von Fraunhofer
Joseph Ritter von Fraunhofer (6 Mairch 1787 – 7 Juin 1826) wis a German optician.
Joseph von Fraunhofer | |
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| Born | 6 Mairch 1787 Straubing, Electorate o Bavarie |
| Dee'd | 7 Juin 1826 (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.