Patent ID: 6787204
Filing Date: 2004-09-07
Classification: B64C,E06B,H05K

Abstract:
An insulating multiple glazing unit comprising:at least two superposed panes of transparent substrate, between which there is interposed at least one gap filled with gas; a seal configured to mount said panes at their periphery by which the glazing unit can be built into a structure configured to enclose a space containing instruments susceptible to being disturbed by an electromagnetic field and which has an electromagnetic shielding function; at least one continuous electrically conductive transparent thin layer provided on one of the panes, and wherein the seal is formed of a central branch and first and second side branches, the central branch and the first side branch defining a first groove to sealingly receive a first of the two panes, the central branch and the second side branch defining a second groove to sealingly receive a second of the two panes, and wherein the seal is made conductive at least in part to ensure connection of the at least one continuous electrically conductive transparent thin layer to the structure, conductivities of the electrically conductive transparent thin layer and of the seal chosen to ensure continuity of the electromagnetic shielding of the structure, wherein the at least one electrically conductive transparent thin layer is constituted by a layer of doped semiconductor, having a thickness between 100 nm and 1000 nm and a surface resistivity of 2 to 40 &OHgr;/&square;, the layer of doped semiconductor oxide being disposed to cover at least one face of the panes.