FIBRE OPTIC SCANNING HEAD

摘要

FIBRE OPTIC SCANNING HEAD This invention relates to the field of scanning graphical line data and more particularly, to an optical scanning head composed of a plurality of optical fibres that can be used in a semiautomatic mode to scan graphical data and transmit the optical data for assimilation by a digital computer. The invention is directed to an optical scanning head for scanning graphical line data comprising elongate scanning means capable of detecting at discrete points along its length variations in light intensity caused by the presence or absence of graphical line data on the graph when proximate to the scanning means. The invention is also directed to an optical scanning head for scanning graphical line data presented on an X-Y coordinate graph comprising: a) a first scanning bar extending in the Y-ordinate direction; b) a second scanning bar extending in the X-ordinate direction; and c) a third scanning bar extending in the X-ordinate direction; each scanning bar being capable of detecting at discrete points along its length variations in light intensity caused by the presence or absence of graphical line data on the graph when proximate to the respective bar.