Illumination device for motor vehicle headlight and motor vehicle headlight

An illumination device (1) for a motor vehicle headlight for producing a light distribution (LV), the illumination device comprising:

• at least one light source (10);
• a light-permeable body (100);
• at least one light injection element (101) for injecting light emitted by the at least one light source (10) into the light-permeable body (100);
• and
• a projection device (500),
• wherein the light-permeable body (100) has a screen device (103) with a screen edge region (104) and the screen device (103) is arranged between the light injection element (101) and the projection device (500) in a light propagation direction,
• wherein light (S10) from the at least one light source (10) enters the light-permeable body (100) via the light injection element (101), which light propagates in the light-permeable body (100) as a first light beam (S1), and wherein the screen device (103) modifies the first light beam (S1) into a modified second light beam (S2), which is displayed by the projection device (500) as the light distribution (LV) to be produced,
• wherein the light distribution (LV) has a cut-off line (HD), wherein the shape and position of the cut-off line (HD) is determined by a screen edge region or a screen edge (104) of the screen device (103),
• wherein the screen device (103) is formed by at least one boundary surface (106) of the light-permeable body (100), and
• wherein the illumination device (1) has at least one further light source, the so-called sign light light source (20), as well as a further sign light light injection element (120) associated with the sign light light source (20), wherein the sign light light injection element (120) forms the light (S20) emitted by the sign light light source (20) into a third light beam (S3) and directs the third light beam (S3) onto the boundary surface (106), such that substantially all light rays of the third light beam (S3) enter the light-permeable body (100), and
• wherein at least some of the light rays (S4) which have re-entered the light-permeable body (100) are projected by the projection optics device (500) as a sign light light beam (SL) into a region (B) of the light distribution (LV) lying above the cut-off line (HD).