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Joseph Ritter von Fraunhofer was a German physicist and optical lens manufacturer. He made optical glass, an achromatic telescope, and objective lenses. He developed diffraction gratings 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.
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science · German physicist (1787–1826) · physicist · astronomer · chemist · also Joseph von Fraunhofer, Joseph v. Frauenhofer, Joseph Ritter von Fraunhofer, Fraunhofer
Born 6 March 1787 · Died 7 June 1826 · Q43948
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Public attention spiked: 3,273 Wikipedia readers in one day, 66.8× the usual 49, with 2 article edits. Editors noted: Invention and scientific research Add convert template.
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With the rest identified as telluric lines originating from absorption by oxygen molecules in the Earth's atmosphere
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Died 1826-06-07.
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Fraunhofer was appointed a Knight of the Order of Merit of the Bavarian Crown by King Maximilian I, through which he was raised into personal nobility (with the title "Ritter von", i
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Career landmark: professor (1824).
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After James Gregory discovered the phenomenon of diffraction grating and after the American astronomer David Rittenhouse invented the first manmade diffraction grating in 1785
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Discovered and studied the dark absorption lines in the spectrum of the sun now known as Fraunhofer lines
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Guinand left the firm, as did Reichenbach
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Constructed a new kind of furnace, and during his second melting session when he melted a large quantity of glass, he found that he could produce flint glass, which, when taken from the bottom of a vessel containing r
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Utzschneider and Georg von Reichenbach brought Fraunhofer into their Institute at Benediktbeuern, a secularised Benedictine monastery devoted to glassmaking
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The workshop in which he was working collapsed, and he was buried in the rubble
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Born 1787-03-06.
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