Patent ID: 11940104
Assignee: SEOUL SEMICONDUCTOR EUROPE GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G  H | IPC F  G

Claim 7:
8. An illumination device, including:
a LED module; and
an optical system for collimating light emitted by the LED module,
wherein the LED module includes:
a plurality of light sources for emitting excitation light;
a plurality of phosphors covering each of the plurality of light sources and configured to convert the excitation light into illumination light; and
a light blocking layer arranged on lateral surfaces of the plurality of phosphors;

wherein:
a first group of the light sources is arranged in a first linear array having first gaps between the light sources,
a second group of the light sources is arranged in a second linear array parallel to the first linear array and having second gaps between the light sources,
each of the plurality of phosphors has a light emitting surface and a number of light emitting surfaces covering the light sources in the first group is greater than a number of light emitting surfaces covering the light sources in the second group,
at least one of the light sources in the first group and at least one of the light sources in the second group are controlled separately from each other.