Rudolf Steinheil

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Rudolf Steinheil (born February 22, 1865 in Munich ; † January 1, 1930 there ) was a German physicist, inventor and entrepreneur.

Live and act

Rudolf Franz Eduard Steinheil, son of the optician and owner of the optical-astronomical workshops CA Steinheil & Sons in Munich, Hugo Adolph Steinheil , and his wife Ida, geb. Erdinger, grew up with his relatives Friedrich Karl (Fritz) (1864–1926) and Emma (1865–1946) in Munich, attended Maximiliansgymnasium here from the school year 1874/75 and passed the Abitur examination in 1884. He then studied at the University of Munich until 1889 and in Kiel in 1886 and was awarded a Dr. phil. PhD.

Around 1890 Rudolf Steinheil took over the management of his father's company. He developed powerful astigmatically corrected lens systems and acquired other patents in addition to the existing patents (1894: "Rapidantiplanet", 1896: "Orthostigmat"; 1902: "Unofocal"). In the specialist literature he published numerous articles on optical-technical problems and their solutions, including from 1892 in the Zeitschrift für Instrumentenkunde. In 1912 he was appointed titular professor.

After Steinheil's death, the company was continued as a family business. In 1962 it was taken over by the Elgeet Optical Company in Rochester, USA, but was soon sold again.

The Steinheil company archive in the Deutsches Museum in Munich contains around 75 folders relating to Rudolf Steinheil.

He was married to Emmy Voit (1864-1903). Her daughter Elsbeth Steinheil (1893–1955) was the first German graduate engineer in mechanical engineering, she later married the technical director of CA Steinheil & Sons Walter Franz.

Publications

  • Observations on rotation and refraction dispersion (winning award script) . Inaugural dissertation at the University of Munich. k. Hof- u. University printing house Dr. C. Wolf & Sohn, Munich 1889.
  • New abbreviated telescope . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 12, 1892
  • New type of lens mount . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 14, 1894
  • Calculation of two-lens lenses . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 17, 1897
  • Color correction and spherical aberration in telescope lenses . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 19, 1899
  • Edge-mounted telescope lenses . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 26, 1906
  • Spectrograph lenses . In: Zeitschrift für Instrumentenkunde. Organ for communications in the entire field of scientific technology 29, 1909

literature

  • Moritz von Rohr: Theory and history of the photographic lens . Springer, Berlin and Heidelberg 1899, p. 305
  • Adolf Miethe: textbook of practical photography . Wilhelm Knapp, Halle 1902, p. 35
  • Otto Lueger (ed.): Lexicon of the entire technology and its auxiliary sciences . Deutsche Verlags-Anstalt, Stuttgart [1894], 2nd edition 1904–1920, vol.?, P.
  • Johann Christian Poggendorff: Biographical-literary concise dictionary for the history of the exact sciences . Vol. 4, Leipzig 1904; Vol. 5, 1926; Vol. 6, part 4, 1940, p.?
  • Helmut Franz, Eduard Reutinger: Steinheil: Munich optics with tradition: 1826 - 1939 (1995); four generations of family business, science and technology; Professor Dr. Carl August von Steinheil, 1801-1870, Dr. Adolph Steinheil, 1832-1893, Ing.Eduard Steinheil, 1830-1878, Professor Dr. Rudolf Steinheil, 1865-1930, Dipl.-Ing. Ludwig Franz, 1880-1964 . Lindemann, Stuttgart 2001
  • Barbara Dufner: The sky firmly in view. A scientific biography about the astrophysicist Bernhard Schmidt . Franz Steiner, Stuttgart 2003 (including Steinheil's correspondence with Karl Schwarzschild )

Web links

Individual evidence

  1. ↑ Abitur at Maximiliansgymnasium 1882; 1889 PhD med .; Editor of a series of books on "The European Snakes"
  2. ↑ married to the psychiatrist and entomologist Auguste Forel (1848–1931).
  3. ↑ Annual report on the K. Maximilians-Gymnasium in Munich for the school year 1874/75 (until 1883/84)
  4. ^ Rudolf Kingslake: The Rochester Camera and Lens Companies, Photographic Historical Society, Rochester, New York 1974, p. 291
personal data
SURNAME Steinheil, Rudolf
ALTERNATIVE NAMES Steinheil, Rudolf Franz Eduard
BRIEF DESCRIPTION German physicist, inventor and entrepreneur
DATE OF BIRTH February 22, 1865
PLACE OF BIRTH Munich
DATE OF DEATH January 1, 1930
Place of death Munich