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 filedfiledCritical
Publication of BE649052ApublicationCriticalpatent/BE649052A/fr
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