Patent ID: 11940130
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H | IPC F

Claim 0:
1. A lighting device comprising:
a first lighting unit including a plurality of first light sources arranged on a first flat or curved surface, and configured to implement lighting of a first illuminance and of a first color;
a second lighting unit including a plurality of second light sources arranged on a second flat or curved surface at least partially inclined with respect to the first lighting unit, the second lighting unit surrounding at least a part of the first lighting unit, and configured to implement lighting of a second illuminance at least partially different from the first illuminance and of a second color;
at least one opening formed to penetrate through the first lighting unit;
at least one third lighting unit including a plurality of third light sources arranged on a third flat or curved surface, and configured to implement lighting of a third illuminance higher than the first illuminance and of a third color through the at least one opening; and
fourth light sources arranged around the at least one opening on the first lighting unit or along an edge of the third lighting unit,
wherein the second lighting unit is configured to implement the lighting of the second illuminance and of the second color in conjunction with the third lighting unit, and
wherein the fourth light sources are configured to implement a gradual color change from the first color implemented by the first lighting unit to the third color implemented by the third lighting unit.