Patent ID: 11892159
Assignee: LUMENS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H | IPC F

Claim 0:
1. A surface light source module comprising:
a substrate;
a plurality of light-emitting elements mounted on the substrate;
a first optical layer formed on the light-emitting elements to cover the light-emitting elements and configured to disperse light emitted from the light-emitting elements;
a second optical layer disposed on the first optical layer and configured to absorb the light emitted from the light-emitting elements and emit light of a different wavelength band from a wavelength of the absorbed light; and
a third optical layer which is disposed on the second optical layer and blocks light incident from the outside,
wherein a distance from an upper surface of the first optical layer to an upper surface of the second optical layer has a value less than a distance from an upper surface of the substrate to the upper surface of the first optical layer.