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Priority to JP46076236ApriorityCriticalpatent/JPS5030456B2/ja
Priority to US00292911Aprioritypatent/US3804494A/en
Priority to DE19722247859prioritypatent/DE2247859C3/de
Publication of JPS4843328ApublicationCriticalpatent/JPS4843328A/ja
Publication of JPS5030456B2publicationCriticalpatent/JPS5030456B2/ja
G02B13/00—Optical objectives specially designed for the purposes specified below
G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length