Otto Zimmermann: Difference between revisions
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*1957 DEC 11 - TRIPLET OBJECTIVE FOR OPTICAL APPARATUS with [[Georg Knetsch]] | *1957 DEC 11 - TRIPLET OBJECTIVE FOR OPTICAL APPARATUS with [[Georg Knetsch]] | ||
*1958 AUG 21 - PHOTOGRAPHIC OBJECTIVE (7 / 5) with [[Gustav Kleinberg]] and [[Eugen Hermanni]] | *1958 AUG 21 - PHOTOGRAPHIC OBJECTIVE (7 / 5) with [[Gustav Kleinberg]] and [[Eugen Hermanni]] | ||
*1961 APR 11 - PHOTOGRAPHIC OBJECTIVE (9 / 7 - 6 | *1961 APR 11 - PHOTOGRAPHIC OBJECTIVE (9 / 7 - 8 / 6) with [[Heinz Marquardt]], [[Gustav Kleinberg]] and [[Eugen Hermanni]] | ||
Revision as of 16:24, 3 March 2012
" . . . Leica always had the obtainment of the best possible optical glasses for its M lenses as one aim of paramount importance, and the examples are manifold: the thorium oxide glass nD= 1,69112 vD= 54, 8 included in four of the lenses of the optical formula of the Leitz Summitar* Summicron (I) f= 5 cm 1:2 Original Project 1950 designed by Gustav Kleinberg and Otto Zimmermann (which also had a flint lead-glass plate to avoid film fogging by radiation) . . ." Source - José Manuel Serrano Esparza
E. Leitz Photographic Patents by Otto Zimmermann
- 1938 DEC 13 - PHOTOGRAPHIC VIEW FINDER
- 1950 JUL 20 - PHOTOGRAPHIC OBJECTIVE LENS SYSTEM (8 / 6) with Gustav Kleinberg see Summicron (I) f= 5 cm 1:2
- 1957 DEC 11 - TRIPLET OBJECTIVE FOR OPTICAL APPARATUS with Georg Knetsch
- 1958 AUG 21 - PHOTOGRAPHIC OBJECTIVE (7 / 5) with Gustav Kleinberg and Eugen Hermanni
- 1961 APR 11 - PHOTOGRAPHIC OBJECTIVE (9 / 7 - 8 / 6) with Heinz Marquardt, Gustav Kleinberg and Eugen Hermanni
