Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Voigtlaender AgfiledCriticalVoigtlaender Ag
Application grantedgrantedCritical
Publication of AT217730BpublicationCriticalpatent/AT217730B/de
G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
G—PHYSICS
G02—OPTICS
G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
G02B3/00—Simple or compound lenses
G02B3/0087—Simple or compound lenses with index gradient
AT960A1959-01-211960-01-02Pankratisches Objektiv für Aufnahme- und Wiedergabe-Zwecke
AT217730B
(de)