Illumination device for a motor vehicle headlight and motor vehicle headlight

An illumination device (1) for a motor vehicle headlight for producing a light distribution (LV) with a cut-off line (HDG), the illumination device comprising:

• a light-permeable body (100);
• at least one light injection element (101);
• at least one light source (10) associated with the at least one light injection element (101), wherein the at least one light injection element (101) is designed to inject light emitted by the at least one light source (10) into the light-permeable body (100);
• and
• a projection device (200),
• wherein the light injection element (101) is configured to inject at least some of the light emitted by the at least one light source (10) into the light-permeable body (100) in such a way that it propagates in the light-permeable body (100) as a first light beam (S1) substantially in a light propagation direction towards the projection device (200),
• wherein the light-permeable body (100) has a screen device (103) with a screen edge (104), wherein the screen edge (104) is arranged between the light injection element (101) and the projection device (200) as viewed in a light propagation direction,
• wherein the screen edge (104) is formed by a first lower boundary surface (105) and a second lower boundary surface (106) of the light-permeable body (100), with the lower boundary surfaces (105, 106) converging in a common edge, the screen edge (104),
• wherein the light injection element (101) has a first deflection structure (101a), which is designed in such a way that light from the at least one light source (10) which enters the light injection element (101) and strikes the deflection structure (101a) is totally reflected in such a way that the totally reflected light (S3) is directed at a second deflection structure (107a),
• wherein the second deflection structure (107a) is arranged on an upper boundary surface (107) of the light-guiding body (100) opposite the lower boundary surfaces (105, 106), and wherein
• wherein the second deflection structure (107a) is designed in such a way that the light striking it is deflected as a fourth light beam (S4) to a first surface region (105a) of the first lower boundary surface (105) of the screen device (103), which first lower boundary surface (105) is arranged downstream of the second boundary surface (106) of the screen device (103) as viewed in the light propagation direction (X1), and
• wherein the surface region (105a) deflects the light striking it as a fifth light beam (S5) into a region (200a) of the projection device (200), which projects the light of the fifth light beam (S5) as a sign light light beam (S6) into a region (B) of the light distribution located above the cut-off line as additional light distribution.