OPTICAL-ELECTRICAL MOVEMENT DETECTOR UTILIZING STAGGERED ROWS OF PHOTODETECTORS AND LOGIC FOR DETERMINING THE LOCATION OF A LUMINOUS SPOT

摘要

An optical-electrical detecting device comprising a series of staggered photo-sensitive diodes are appropriately connected to electronic circuits for providing a signal corresponding to the position of a relatively small luminous spot. The photo-diodes are arranged in two rows and are separated by baffle reflectors for providing a signal through logic gates to an integrated parity control circuit for defining the position of the luminous spot.