Abstract: The invention relates to a method for collective manufacturing of spacers (35) for flat viewing screens with high voltage control and divided into picture elements or pixels (28), characterized in that it comprises the following steps:machining a substrate, of an adequate material for making spacers, in view of obtaining a profile structure (30) with a cross section (32, 42, 52) comprising a center core (33, 43, 53) and lateral stiffeners (34, 44, 54), the thickness of the center core and the lateral stiffeners as well as the distance separating the lateral stiffeners being such that said section can be inserted between the screen pixels without overlapping them, cutting the profile structure (30) obtained during the preceding interval in view of obtaining sections of a given length, designed to form said spacers (35).

Abstract: An electron collector having an anode constituted by a substrate (21, 40, 41) on which are deposited conductive strips or tracks (23, 43). A dielectric material layer is deposited on at least one of the edges of each conductive strip.