Photographica Pages. Retrieved 26 April 2023. US Patent 3661447, Glatzel, Erhard & Schulz, Hans, "Three lens element wide angle objective", published... 17 KB (1,757 words) - 21:23, 4 February 2024 |
simplified design in 1952; that patent, in turn, was cited by Drs. Erhard Glatzel and Hans Schulz in their 1966 patent for the Hologon. Biotar Tessar... 19 KB (1,908 words) - 21:14, 27 June 2023 |
optical designs occurred during the sixties and seventies, when Dr. Glatzel (Erhard Glatzel) of Zeiss introduced new methods of lens design. In the Leica-centric... 16 KB (2,358 words) - 21:39, 7 June 2023 |
Würfel, Völklingen Alex Faller, Ergoldsbach Hermann Fischer, Augsburg Erhard Glatzel, Heidenheim Janos Ladik, Erlangen Georg Spinner, Feldkirchen-Westerham... 14 KB (1,226 words) - 21:12, 7 November 2023 |
1910 1880 Friedrich Musculus 1910 1880 Friedrich Marwede 1910 1880 Ludwig Glatzel 1911 1881 Paul von Hintze 1911 1882 Fritz Hoffmann 1861 1918 1911 1879... 141 KB (410 words) - 21:05, 14 February 2024 |