Abstract: A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5′, 5″, . . . ). Light originating from the light sources (5, 5′, 5″, . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) corresponds to the shape of the light symbol (27; 28).

Abstract: A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5′, 5″, . . . ). Light originating from the light sources (5, 5′, 5″, . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) corresponds to the shape of the light symbol (27; 28).

Abstract: A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5′, 5″, . . . ). Light originating from the light sources (5, 5′, 5″, . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) corresponds to the shape of the light symbol (27; 28).

Abstract: A luminaire comprises a relatively thin and flat light-emitting panel (1) having a light-emitting window (2) and, opposite said light-emitting window, a rear wall (3) with opposed edge surfaces (4, 14). At least one of the edge surfaces (4) is light transmitting and associated with a plurality of light sources (5, 5′, 5″, . . . ). Light originating from the light sources (5, 5′, 5″, . . . ) is spread in the panel (1). The invention is characterized in that a plurality of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) is provided in the panel (1) for extracting light from the panel (1) via the light emission window (2). The deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) are clustered so as to form at least one light symbol (27; 28). The configuration of the clusters (17; 18) of deformities (7, 7′, 7″, . . . ; 8, 8′, . . . ) corresponds to the shape of the light symbol (27; 28).

Abstract: A first road marking unit with a first base plate is provided with a first light source, and a second road-marking unit with a second base plate is provided with a second light source. A view angle of 0.1≦&agr;≦8° is formed between an interconnecting line, which interconnects the first and the second light sources, and an intersecting line which intersects the interconnecting line. In a view section where the view angle is 0.1≦&agr;≦8°, light beams originating from the first and the second light sources demonstrate a uniform overlap in the view section at a distance a≧40 m from the first light source. Preferably, the distance d between the first light source and the second light source lies in the range from 10 ≦d≦25 cm. The first and the second base plate of the road-marking units are integrated so as to form a base module.