Patent ID: 9553281
Date: 2017-01-24
CPC Classifications: F21S,F21V,F21Y,G02B,H01L

Claim:
1. A lighting device comprising: a structure body including a first surface and a second surface which is opposite to the first surface of the structure body, the structure body including a negative Fresnel lens shape on a region of the first surface of the structure body; a layer including a first surface and a second surface which is opposite to the first surface of the layer, the first surface of the layer being in direct contact with the first surface of the structure body; and a light-emitting body which is over the structure body with the layer interposed therebetween, the light-emitting body being in direct contact with the second surface of the layer, wherein the light-emitting body comprises a first electrode, a second electrode, and a light-emitting layer interposed therebetween, wherein the layer includes a Fresnel lens shape at an interface with the region of the first surface of the structure body, wherein the layer comprises a resin which is cured, wherein the structure body and the layer are capable of transmitting light, wherein a refractive index of the layer and a refractive index of a light-emitting region in the light-emitting body are higher than a refractive index of the structure body by 0.1 or more, and wherein the region of the first surface of the structure body and the light-emitting region are in a concentric pattern.