Back جوزيف فون فراونهوفر Arabic چوزيف فون فراونهوفر ARZ یوزف فون فراونهوفر AZB Joseph von Fraunhofer BAR Іозеф Фраўнгофер Byelorussian Йозеф фон Фраунхофер Bulgarian ইয়োসেফ ফন ফ্রাউনহোফার Bengali/Bangla Joseph von Fraunhofer BS Joseph von Fraunhofer Catalan Joseph von Fraunhofer Czech
Joseph von Fraunhofer | |
|---|---|
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| Born | 6 March 1787 |
| Died | 7 June 1826 (aged 39) |
| Known for | Fraunhofer diffraction Fraunhofer lines Fraunhofer distance |
Joseph Ritter von Fraunhofer (/ˈfraʊnˌhoʊfər/; German: [ˈfraʊnˌhoːfɐ]; 6 March 1787 – 7 June 1826[1]) was a German physicist and optical lens manufacturer. He made optical glass, an achromatic telescope, and objective lenses. He developed diffraction grating and also invented the spectroscope. In 1814, he discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines.[2]
The German research organization Fraunhofer Society, which is Europe's biggest Society for the advancement of applied research, is named after him.
- ^ Adolf Wißner (1961), "Fraunhofer, Joseph von (bayerischer Personaladel 1824)", Neue Deutsche Biographie (in German), vol. 5, Berlin: Duncker & Humblot, pp. 382–384; (full text online)
- ^ Kitty Ferguson & Miko Maciaszek (20 March 2014). "The Glassmaker Who Sparked Astrophysics". Nautilus. Archived from the original on 23 March 2014. Retrieved 8 April 2018.
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