Joseph von Fraunhofer ─ The Father of the Spectrometer

Joseph von Fraunhofer ─ The Father of the Spectrometer

Joseph Fraunhofer, ennobled in 1824 as Ritter von Fraunhofer (6 March 1787 – 7 June 1826) was a German optician. He is known for the discovery of the dark absorption lines known as Fraunhofer lines in the Sun's spectrum, and for making excellent optical glass and achromatic telescope objectives.

Joseph Fraunhofer, ennobled in 1824 as Ritter von Fraunhofer (6 March 1787 – 7 June 1826) was a German optician. He is known for the discovery of the dark absorption lines known as Fraunhofer lines in the Sun's spectrum, and for making excellent optical glass and achromatic telescope objectives.

In 18th century Bavaria the quick-thinking of a king changed an unlucky boy's life when Joseph von Fraunhofer found himself trapped in a collapsing building!

In 18th century Bavaria the quick-thinking of a king changed an unlucky boy's life when Joseph von Fraunhofer found himself trapped in a collapsing building!

German stamp commemorating the 200th anniversary of the birth of Fraunhofer (Germany, 1987). Fraunhofer Lines are the dark lines in the absorption spectrum of the sun, described in detail by Joseph von Fraunhofer. Of the 25,000 lines in the solar spectrum, von Fraunhofer mapped 576, assigning letters to identify the most prominent ones.

German stamp commemorating the 200th anniversary of the birth of Fraunhofer (Germany, 1987). Fraunhofer Lines are the dark lines in the absorption spectrum of the sun, described in detail by Joseph von Fraunhofer. Of the 25,000 lines in the solar spectrum, von Fraunhofer mapped 576, assigning letters to identify the most prominent ones.

Joseph-von-Fraunhofer-Gymnasium Cham

Joseph-von-Fraunhofer-Gymnasium Cham

Glas und Stahl - Der Sonnenuntergang spiegelt sich in der Joseph-von-Fraunhofer-Halle in Straubing.  Sunset at the Joseph-von-Fraunhofer-Halle in Straubing.

Glas und Stahl - Der Sonnenuntergang spiegelt sich in der Joseph-von-Fraunhofer-Halle in Straubing. Sunset at the Joseph-von-Fraunhofer-Halle in Straubing.

In physics and optics, the Fraunhofer lines are a set of spectral lines named after the German physicist Joseph von Fraunhofer (1787–1826). The lines were originally observed as dark features (absorption lines) in the optical spectrum of the Sun. Fraunhofer lines are used to determine the elemental makeup of the object from which the light is emitted.

In physics and optics, the Fraunhofer lines are a set of spectral lines named after the German physicist Joseph von Fraunhofer (1787–1826). The lines were originally observed as dark features (absorption lines) in the optical spectrum of the Sun. Fraunhofer lines are used to determine the elemental makeup of the object from which the light is emitted.

German physicist who first studied the dark lines of the Sun’s spectrum, now known as Fraunhofer lines. He also was the first to use extensively the diffraction grating, a device...

German physicist who first studied the dark lines of the Sun’s spectrum, now known as Fraunhofer lines. He also was the first to use extensively the diffraction grating, a device...

Changes in Solar Cell Technology  Joseph von Fraunhofer Prize 2016

Changes in Solar Cell Technology Joseph von Fraunhofer Prize 2016

The sun confesses (ca. 1814): using a spectroscope of his own manufacture, German optician Joseph von Fraunhofer discerned a set of “blanks” in the solar spectrum— dark lines that would later be read as clues to the chemical composition of extraterrestrial matter. Courtesy Deutsches Museum.

The sun confesses (ca. 1814): using a spectroscope of his own manufacture, German optician Joseph von Fraunhofer discerned a set of “blanks” in the solar spectrum— dark lines that would later be read as clues to the chemical composition of extraterrestrial matter. Courtesy Deutsches Museum.

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