Illumination system with remote phosphor layer and/or scattering layer

摘要

The invention relates to an illumination system (10, 12), to a remote phosphor layer (30; 32, 34), to a scattering layer (32), to a luminaire (100), to a display device (300) and to a method of at least partially correcting a light emission characteristic of at least one light source (22) in the illumination system. The illumination system comprises an array of light sources (20) and a remote phosphor layer and/or a scattering layer arranged between the array of light sources and a light output window (40) for emitting the light from the light sources. At least one light source of the array of light sources comprises a light emission characteristic different from the other light sources of the array of light sources. The luminescent material (52, 54) is distributed across the remote phosphor layer and/or the scattering structures (52) and/or scattering material (52) are distributed across the scattering layer for compensating at least partially the difference in light emission characteristic of the at least one light source.;The effect of the illumination system according to the invention is that the deviation of the at least one light source can be compensated, and as such, binning of light sources may be omitted.

主权项

1. An illumination system comprising:
an array of light sources and a remote phosphor layer and scattering layer arranged between the array of light sources and a light output window for emitting the light from the light sources, wherein a majority of the array of light sources are made to and include a first standard comprising a first light emission characteristic, at least one light source of the array of light sources comprising a light emission characteristic different from the majority of the array of light sources with the first light emission characteristic, the remote phosphor layer and scattering layer being arranged at a distance from the array of light sources, the remote phosphor layer comprising luminescent material arranged for converting at least a part of the light emitted by the light sources into light of a different color, the scattering layer comprising scattering structures and/or scattering material arranged for scattering at least a part of the light emitted by the light sources, the luminescent material being distributed across the remote phosphor layer and the scattering structures and/or scattering material being distributed across the scattering layer in a different manner directly between the at least one light source and the light output window as compared to between the majority of the array of light sources with the first light emission characteristic and the light output window based on a determination of a distribution of the luminescent material and the scattering structures and/or scattering material required for compensating at least partially the difference in light emission characteristic of the at least one light source.