Legal status (The legal status 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 status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Application grantedgrantedCritical
Publication of FR895830ApublicationCriticalpatent/FR895830A/fr
G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
G02B9/02—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having one + component only
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Optics & Photonics
(AREA)
FR895830D1942-06-261943-06-24Lentille ou système de lentilles, appareil de projection et appareil photographique
ExpiredFR895830A
(fr)