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.)
General American Transportation Corp
Original Assignee
General American Transportation Corp
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 General American Transportation CorpfiledCriticalGeneral American Transportation Corp
Priority to FR47858ApriorityCriticalpatent/FR1466743A/en
Application grantedgrantedCritical
Publication of FR1466743ApublicationCriticalpatent/FR1466743A/en
G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
G02B7/28—Systems for automatic generation of focusing signals
G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
FR47858A1966-01-311966-01-31
Autofocus apparatus and method for photographic cameras
ExpiredFR1466743A
(en)