Illumination arrangement

Abstract

In various exemplary embodiments, an illumination arrangement (100) is provided, comprising a light source (110) for providing laser light (130) and a diffusely reflective material and / or a phosphorescent material and / or a fluorescent material, which is arranged on a surface (108) in the illumination arrangement (100) in such a way that light (130) provided by the light source (110) impinges on the material, wherein the surface forms a hollow body having one or more partial surfaces which are arranged in a manner facing one another at least in part in such a way that light reflected or generated by material arranged on one partial surface impinges at least partly on material arranged on the same or another partial surface of the surface,; and both the incidence of the laser light and the emission of the reflected or generated light are effected via the same surface of the one or more partial surfaces.

Description

technical field [0001] The invention relates to a lighting device. Background technique [0002] In conventional lamps, the light generated via the helical filament is emitted and provided as useful light. The lamp can have a reflector by means of which the emitted light can be deflected so that it leaves the reflector as a directed beam and is available as useful light. Up to now, lamps based on new light sources such as LEDs (Light Emitting Diodes) or laser diodes have become more and more important. However, with these new light sources only a limited number of light colors can be produced. In order to expand this option, it is possible to use phosphors which, when illuminated by light of one color (also referred to as pump light), themselves emit light of another color, in other words convert the light. In this way, white light can be generated, for example, by irradiating the phosphor with blue light. [0003] In currently common light-converting lamps, for example,...

AI Technical Summary

Problems solved by technology

[0005] If such a device is part of an optical system, the effect described above has the disadvantage that the converted light may not reach the optical element and thus be useless

[0006] Problems can also arise based on the fact that common luminescent materials do not completely convert the incoming light, but always partly reflect it diffusely

[0007] Furthermore, when irradiating luminescent materials, there is a restriction that the luminescent materials cannot be irradiated with any pump light efficiency

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