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

Claim 0:
1. An illumination device, including:
a LED module; and
an optical system arranged in proximity to the LED module and configured to collimate 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 having a size of 1 mm2 or less, and
at least one of the light sources in the first group is controlled separately from at least one of the light sources in the second group.