Reading device acousto - electrical of an optical image

摘要

P the invention has for its object a device for analysing acousto - electrical of an optical image has one or two dimensions. / p & & p & this device comprises a substrate piezoelectric 1 and a semi - conductive substrate 2 which carries a network of the diodes on the one of its faces, which is in the screw - to - screw piezoelectric 1. The light image is projected on this face and causes a discharge of each of the diodes, a function of the light intensity recue at each point. An acoustic pulse a high frequency s is propagated on the substrate piezoelectric 1 makes it possible to reload the diodes by providing a video signal e representing the image analysis projected. / p & & p & such devices enable an image analysis has a low level of application. / p