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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.
Joseph von Fraunhofer 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
Joseph von Fraunhofer. Chronicles. 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 ...
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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.
Jun 27, 2018 · views 2,435,320 updated Jun 08 2018. Fraunhofer, Joseph von (1787–1826) German physicist and optician, founder of astronomical spectroscopy. By studying the diffraction of light through narrow slits, he developed the earliest form of diffraction grating.
Fraunhofer is regarded as the founder of scientific methodology in the field of optics and precision mechanics, as the first German exponent of precision optics, and as a successful entrepreneur.
History. © Fraunhofer-Gesellschaft. 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.
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