Light guide element , comprising - a plate-shaped region having a first surface region which extends in a first plane (E1) and a second surface region which extends parallel to said first surface region in a second plane (E2), wherein an edge region of the light guide element , which is disposed in a plane perpendicular to the first plane (E1) and is formed along a longitudinal side of the light guide element , comprises locations (S1, S2 S3) that are disposed between the first plane (E1) and the second plane (E2), wherein each location (S1, S2 S3) is provided for the entry of a light produced by at least one LED and the first surface region and/or the second surface region are provided for the light to exit, - an elongated flange-like region which is disposed extending along the edge region provided for the entry of the light, wherein the flange-like region comprises a surface region (F) which is disposed on a third plane (E3) oriented perpendicular to the first plane (E1) and a further surface region (G) parallel to the surface region (F), wherein the flange-like region is configured to project beyond the first surface region , characterized in that the flange-like region comprises at least one recess , in the form of a through-opening which extends parallel to the first plane (E1) from the surface region (F) to the further surface region (G), for total reflection of the light that has entered via the edge region in order to guide the totally reflected light into the plate-shaped region , and wherein the at least one recess is configured to correlate to at least one of the locations (S1, S2, S3). - a plate-shaped region having a first surface region which extends in a first plane (E1) and a second surface region which extends parallel to said first surface region in a second plane (E2), wherein an edge region of the light guide element , which is disposed in a plane perpendicular to the first plane (E1) and is formed along a longitudinal side of the light guide element , comprises locations (S1, S2 S3) that are disposed between the first plane (E1) and the second plane (E2), wherein each location (S1, S2 S3) is provided for the entry of a light produced by at least one LED and the first surface region and/or the second surface region are provided for the light to exit, - an elongated flange-like region which is disposed extending along the edge region provided for the entry of the light, wherein the flange-like region comprises a surface region (F) which is disposed on a third plane (E3) oriented perpendicular to the first plane (E1) and a further surface region (G) parallel to the surface region (F), wherein the flange-like region is configured to project beyond the first surface region , characterized in that the flange-like region comprises at least one recess , in the form of a through-opening which extends parallel to the first plane (E1) from the surface region (F) to the further surface region (G), for total reflection of the light that has entered via the edge region in order to guide the totally reflected light into the plate-shaped region , and wherein the at least one recess is configured to correlate to at least one of the locations (S1, S2, S3). <EOS>