Method of selectively metallising an inner, electrically insulating surface of an open body

摘要

A method of selectively metallising an inner, electrically insulating surface Si of an open body (3), comprising the following steps: (a) providing a roller (2) having a resilient outer surface So; (b) providing a layer of a suitable wet ink on the surface So, according to a given pattern; (c) causing the roller (2) to roll along the surface Si so as to impart a patterned layer of wet ink from the surface So to the surface Si; (d) allowing the patterned layer of wet ink imparted to the surface Si to dry; (e) selectively depositing metallic material upon the patterned layer of dry ink thus obtained. Such a method is particularly suited to the manufacture of a scan velocity modulator (1) for use in a cathode ray tube.