FLAT COPLANAR-DISCHARGE LAMP AND USES OF SAME

摘要

The invention relates to a flat discharge lamp (100) which transmits visible or ultraviolet radiation. The invention comprises: first and second flat or essentially-flat glass elements (2, 3) which are maintained essentially parallel to one another and which define and internal space (10) that is filled with gas (71), the first and/or second glass element being made from a radiation-transmitting material; and at least one first electrode (41a) and at least one second electrode (51a) which can be at different potentials and which can be supplied with an AC voltage (V1), said first and second electrodes being associated with one or more main faces (21) of the first glass element. Moreover, said substantially-elongated first and second electrodes are disposed essentially parallel to one another and are separated by at least one interelectrode space having an essentially-constant given width (d1).The invention is characterised in that the lamp also comprises at least one third electrode (42a) which can be at a given potential (V01), which is associated with a main face (31) of the second glass element and which projects out such as to occupy at least part of the interelectrode space.