Electronic apparatus for the laser imprinting of screen-process printing stencils and the like

Electronic apparatus for imprinting screen-process printing stencils and the like, using the method of electronic image processing and a LASER light source, comprising:

• an electronic device for the color acquisition of the image of a manually prepared color design, so as to obtain the information in a digital format which can be stored on a magnetic support;
• a computer for the management of the data stored on said magnetic support. suitable for allowing the user to manage said data, i.e. to seleot the fundamental colors, change them and partially superimpose them, with simultaneous on-screen display or printout on paper or the like;
• a further computer which is controlled by the management computer and has the functions of controlling the data output by the management computer and of preparing the image for imprinting;
• at least one microprocessor-based device with driving and synchronizing functions, which is suitable for translating the data output by said control computer into electric signals which are synchronized with a mirror scanning system for orientating the beam of said LASER toward any point of the plane of the support to be imprinted and for modulating the intensity of said LASER beam according to the position assumed thereby on the plane of the support, as well as a scanning system constituted by at least one mirror which is arranged on the optical axis of the LASER beam and can be orientated by virtue of motor means, such as a galvanometer or the like, controlled by said control computer by means of an analog circuit.