Abstract: The invention relates to the production of dielectric barrier discharge lamps with a flat discharge vessel. At least one material recess (5), for example a groove, is provided in at least one discharge vessel part (1). During the joining of the discharge vessels in a vacuum oven, at least pressure equalization or else evacuation, purging and filling steps can be carried out through the material recess or recesses. This makes it possible to avoid stresses and, in particular when a plurality of discharge vessels which are stacked one on top of the other are being joined, to achieve standard gas purity in the completely joined discharge vessels. The material recesses (5) are closed by glass solder (8) once the lamp has been completely joined together.

Abstract: The invention relates to the production of dielectrically impeded discharge lamps having a flat discharge vessel. In order to avoid strains and the need for pressure adaptations in a vacuum furnace, during joining of the discharge vessels gaps are left in a frame of the discharge vessel through which at least pressure equalization, or else evacuation, flushing and filling steps can be performed.

Abstract: The method according to the invention proposes that the spacers (3) are dipped in a solder bath before the components of the flat discharge lamp are joined and are then arranged on the inner side of the base plate (6) of the discharge lamp such that the spacers (3) adhere to the inner side of the base plate (6) by means of the solder paste (5). As a result, the spacers (3) are secured against falling over in the subsequent manufacturing steps, in particular even during the joining process in the joining furnace.