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Joseph von Fraunhofer. 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.
Mar 4, 2024 · Joseph von Fraunhofer (born March 6, 1787, Straubing, Bavaria [Germany]—died June 7, 1826, Munich) was a 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 that disperses light more effectively than a prism does.
- The Editors of Encyclopaedia Britannica
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Researcher Joseph von Fraunhofer, born in 1787, brought us closer to the stars. Counted as one of the founders of modern optics, he succeeded in manufacturing telescopes in a quality that had never been seen before. In 1814, he made his most significant discovery, which was then named after him – Fraunhofer lines.
spectrum in his spectroscope. Joseph von Fraunhofer (1787–1826) saw more dark lines but did not guess or deduce their origin. The currently accepted explanation – the absorption of continuous white light by vapours in the atmosphere of the Sun – was given by Gustav Kirchhoff and Robert Bunsen in the University of Heidelberg
During the early 1800s, Joseph von Fraunhofer conducted experiments with dispersive spectrometers that enabled spectroscopy to become a more precise and quantitative scientific technique. Since then, spectroscopy has played and continues to play a significant role in chemistry, physics and astronomy.
Joseph von Fraunhofer (1787–1826) Joseph von Fraunhofer was the youngest of a poor glass grinder's ten children and was orphaned at the age of 11. He did not receive the luxury of a formal education but was apprenticed to a Munich mirror maker and lens grinder. In 1801, an accident occurred that almost cost von Fraunhofer his life but ...
Joseph von Fraunhofer (March 6, 1787 – June 7, 1826) was a German optician who was the first to study and classify the dark lines that appear in the spectra of the sun. During his lifetime he was known as the maker of the finest refractor telescopes in Europe. He also perfected the use of fine gratings, known as diffraction gratings, for ...
