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.

2018年6月27日 · The German physicist Joseph von Fraunhofer (1787-1826) was the first to solve the problem of constructing achromatic lenses of high magnitude. Joseph von Fraunhofer, the son of a poor glazier, was born on March 6, 1787, in Straubing, Bavaria.

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.

Mirror grinder, instrument maker, optical scientist, astronomer and discoverer of the key to the secret code of the stars. Joseph Fraunhofer was born in Straubing on 6 March 1787 as the...

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.

Born Straubing, (Bavaria, Germany), 6 March 1787. Died Munich, (Germany), 7 June 1826. Joseph Fraunhofer was in his day the leading producer of major telescope objectives, his testing of which led to his discovery of the Fraunhofer lines in the solar spectrum.

Joseph von Fraunhofer was born in Straubing, Bavaria, on March 6, 1787. Orphaned at the age of 11, he did an apprenticeship as a lens and mirror maker, after which he worked in a Munich company making scientific instruments. He learned mathematics and …

Joseph Fraunhofer, seit 1824 Ritter von Fraunhofer, war ein deutscher Optiker und Instrumentenbauer in Benediktbeuern und München. Er begründete am Anfang des 19. Jahrhunderts den wissenschaftlichen Fernrohrbau. Ein farbreiner Objektivtyp, das Fraunhofer-Objektiv, wurde nach ihm benannt. Seine hervorragendste Leistung besteht in der ...

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.