Abstract: A luminous film includes a plurality of light-emitting diodes. The luminous film has micro-optical elements which are arranged in at least one layer. A dedicated micro-optical region with corresponding micro-optical elements can be provided for each light-emitting diode, and the micro-optical elements can have different optical properties within the corresponding region depending on their position. The micro-optical regions can be designed to be structurally identical but differ in terms of optical properties depending on their location on the luminous film. Light emitted by the light-emitting diodes is deflected by the micro-optical elements such that for each light-emitting diode the main emission direction deviates from a surface normal of the luminous film in the region of the corresponding light-emitting diode.

Abstract: A luminous film has a plurality of light-emitting diodes, a carrier layer and a light-conducting layer having microoptical structures which make it possible to deflect multidirectionally emitted light in a common emission direction of the luminous film, in order to allow uniform illumination of the luminous film surface with a low light-emitting diode population of the luminous film.

Abstract: A lighting system is disclosed for the spatially evenly distributed emission of light from first, second and third light sources. The spectral ranges of the light emitted by the different light sources are different from each other. The lighting system includes: a holding layer or carrier layer, on which the light sources are arranged in groups each having one each of the first, second and third light sources; and a luminophore layer, which is arranged in the propagation direction of the light from the light sources and has a first, a second and a third luminescent-material film. The luminescent material of each luminescent-material film is induced to luminesce largely, more particularly exclusively, by means of the first, second or third light sources.

Abstract: A luminous film has a plurality of light-emitting diodes, a carrier layer and a light-conducting layer having microoptical structures which make it possible to deflect multi-directionally emitted light in a common emission direction of the luminous film, in order to allow uniform illumination of the luminous film surface with a low light-emitting diode population of the luminous film.

Abstract: Seamless display screens that are portable and can be installed in a fast manner, as well as a projection unit for use with several projectors as well as methods of making such display screens. The projection unit can be suitable for being used as a rear projection unit. Devices are provided for reducing depth of the projection unit, to compensate for blend zones and to make it easy to transport such as to be suitable for trade shows, e.g. mirrors or Fresnel lenses.

Abstract: Seamless display screens that are portable and can be installed in a fast manner, as well as a projection unit for use with several projectors as well as methods of making such display screens. The projection unit can be suitable for being used as a rear projection unit. Devices are provided for reducing depth of the projection unit, to compensate for blend zones and to make it easy to transport such as to be suitable for trade shows, e.g. mirrors or Fresnel lenses.