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Kern & Cie S A
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Kern & Cie S A
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Publication date
Application filed by Kern & Cie S AfiledCriticalKern & Cie S A
Application grantedgrantedCritical
Publication of FR909531ApublicationCriticalpatent/FR909531A/en
G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
FR909531D1944-03-131945-02-28
Photographic lens with spherical, astigmatic and chromatic correction for one or more colors
ExpiredFR909531A
(en)