Patent ID: 11892670
Assignee: NICHIA CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  F | IPC F  G

Claim 20:
21. A light emitting module comprising:
a light guide member comprising:
an emission region defined by a sectioning groove,
a light source placement part located in the emission region,
a first light adjusting hole, and
a second light adjusting hole,
wherein, in a schematic top view, the first light adjusting hole and the second light adjusting hole are located between the sectioning groove and the light source placement part;

a light source disposed in the light source placement part;
a first light transmissive member comprising a light transmissive resin material, the first light transmissive member being provided in the light source placement part so as to embed the light source; and
a first light adjusting member disposed on the light guide member, the first light adjusting member being located in a region including an area immediately above the light source placement part; wherein:
the light source comprises:
a light emitting element having a first face, a second face located opposite to the first face, and a third face extending from the first face to the second face,
a second light transmissive member covering the second face of the light emitting element and the third face of the light emitting element,
a cover member including a light diffusing material, the cover member covering the first face of the light emitting element and a lower face of the second light transmissive member, and
a second light adjusting member including a light reflecting material, the second light adjusting member being disposed on the second light transmissive member; and

a refractive index of an inside of the second light adjusting hole is lower than a refractive index of the light guide member,
in the schematic top view:
a shape of the emission region is quadrilateral,
the first light adjusting hole is not positioned on a first straight line connecting a center of the light source and a corner of the emission region, wherein light emitted from the light source is totally reflected by a lateral face of the first light adjusting hole, and
the second light adjusting hole is positioned at a region with which the first straight line intersects, wherein light emitted from the light source is refracted in the second light adjusting hole.