Abstract: A light guide comprising an outcoupling structure is provided. The outcoupling structure is adapted to deflect a light coupled into the light guide in a first predetermined outcoupling direction. The outcoupling structure is formed by a configuration of a surface of the light guide.

Abstract: In various embodiments, a lighting system is provided. The lighting system includes an optical unit having a plurality of light guides which are respectively provided for at least one light source and which respectively have an input coupling face. On the output side, the light guides are connected via a common connecting portion of the optical unit, the connecting portion having an output face, pointing away from the light guides, for the light emerging from the light guides. The lighting system further includes a holding frame for the optical unit, by means of which the optical unit is fastened to a printed circuit board, having the light sources, of the lighting system.

Abstract: A lighting system includes an optical unit. The optical unit includes at least one light guide, which is provided for at least one light source. The lighting system further includes a retaining frame for the optical unit, via which frame the optical unit is fastened to a printed circuit board including the at least one light source, and a spacer for positioning the optical unit, which spacer is arranged between the retaining frame and the printed circuit board, the spacer having at least one continuous bearing opening in order to receive the at least one light guide. At least one guide recess is formed on the edge of the at least one bearing opening and at least one support face is provided on the edge, on which support face the light guide introduced into the bearing opening can be supported.

Abstract: A lighting system includes an optical unit. The optical unit includes at least one light guide, which is provided for at least one light source. The lighting system further includes a retaining frame for the optical unit, via which frame the optical unit is fastened to a printed circuit board including the at least one light source, and a spacer for positioning the optical unit, which spacer is arranged between the retaining frame and the printed circuit board, the spacer having at least one continuous bearing opening in order to receive the at least one light guide. At least one guide recess is formed on the edge of the at least one bearing opening and at least one support face is provided on the edge, on which support face the light guide introduced into the bearing opening can be supported.

Abstract: In various embodiments, a lighting system is provided. The lighting system includes an optical unit having a plurality of light guides which are respectively provided for at least one light source and which respectively have an input coupling face. On the output side, the light guides are connected via a common connecting portion of the optical unit, the connecting portion having an output face, pointing away from the light guides, for the light emerging from the light guides. The lighting system further includes a holding frame for the optical unit, by means of which the optical unit is fastened to a printed circuit board, having the light sources, of the lighting system.

Abstract: In a projection device with a matrix (50) located in an image plane for generating a video image, with optics (9) for projection of this video image on a screen and with a light source (3, 30) for illuminating the matrix (50), there is an arrangement by which the video image can be uniformly illuminated.

Abstract: Homeotropic liquid crystal displays, and methods for their production and use, are provided. The alignment layers of the subject displays have at least one alignment structure rising from a planar substrate. At least a portion of the wall has a bond anisotropy sufficient to align liquid crystal molecules substantially vertical to the planar substrate of the alignment layer. The subject displays find use in a variety of different applications, including in monitors for use in laptop computers, desktop computers, televisions, and the like.

Abstract: A method for producing a multi-domain alignment layer, as well as multi-domain alignment layers produced thereby and liquid crystal displays comprising the same, are provided. In the subject method, an alignment layer is produced on an alignment surface by directing an ion beam or ion beams at the surface at an angle not equal to 90°, so that the ions contact the surface at non-normal incidence. The substrate may be rotated or the ion beam(s) re-directed or the ion beam source moved so that the surface may be bombarded from different directions in different regions resulting in multiple alignment layer domains with differing alignment. In an alternative embodiment, two ion beams with different angles of incidence may be directed at the surface simultaneously or sequentially, thereby creating multiple alignment layer domains without need for rotation of the substrate. The resultant multi-domain alignment layers find use in liquid crystal display devices.