Back to results
US 12,416,830 B2Granted
Lighting device and vehicle lamp having same
AssigneeLG Innotek Co., Ltd.
InventorsEay Jin Lim, Seong Jin Kim
Life of this patent
Estimating the term…
Abstract
The lighting device disclosed at an embodiment of the invention includes a substrate; a first reflective layer disposed on the substrate and having a plurality of reflection patterns; a light source disposed on the substrate; a resin layer disposed on the first reflective layer, and a second reflective layer disposed on the resin layer and having a plurality of holes, wherein an arrangement form of the plurality of holes is the same as that of the plurality of reflection patterns.
Claims18
A lighting device comprising:
- a substrate;
- a first reflective layer disposed on the substrate and having a plurality of reflection patterns;
- a light source disposed on the substrate;
- a resin layer disposed on the first reflective layer;
- and
- a second reflective layer disposed on the resin layer and having a plurality of holes,
- wherein an arrangement form of the plurality of holes is a same as an arrangement form of the plurality of reflection patterns,
- wherein the plurality of reflection patterns and the plurality of holes overlap in one region in a direction perpendicular to an upper surface of the substrate,
- wherein a size of at least one of the holes is smaller than a size of at least one of the reflection patterns in the overlapping region, and
- wherein the plurality of holes include a region where a size of the holes increases as a distance from the light source in an emission direction of the light source increases.
7 more elements
A lighting device comprising:
- a substrate;
- a first reflective layer disposed on the substrate and having a plurality of reflection patterns;
- a light source disposed on the substrate;
- a resin layer disposed on the first reflective layer;
- a second reflective layer disposed on the resin layer and having a plurality of holes,
- wherein the plurality of holes includes a region where a number of holes per unit area increases as a distance from the light source in an emission direction of the light source increases,
- wherein the plurality of reflection patterns and the plurality of holes overlap in one region in a direction perpendicular to an upper surface of the substrate, and
- wherein a size of at least one of the holes is smaller than a size of at least one of the reflection patterns in the overlapping region.
5 more elements
A lighting device comprising:
- a first reflective layer having a plurality of reflection patterns;
- a second reflective layer having a plurality of holes;
- a resin layer disposed between the first reflective layer and the second reflective layer;
- and
- a light source that provides light to an inside or outside of the resin layer,
- wherein the second reflective layer includes a region in which at least one of a size or an interval of the holes changes as a distance from the light source in an emission direction of the light source increases,
- wherein the second reflective layer includes a reflective film having the plurality of holes on the resin layer,
- wherein the plurality of holes penetrates from an upper surface of the reflective film toward the resin layer,
- wherein at least one or at least one column of the plurality of holes overlaps at least one of the reflection patterns in a vertical direction,
- wherein the reflective film is made of metal,
- wherein the size of at least one of the holes is 20 times or less than a wavelength emitted from the light source,
- wherein the plurality of holes has an overlap ratio of 50% or more with the plurality of reflection patterns, and
- wherein at least one of the plurality of holes has an overlap ratio with vertically overlapping at least one of the reflection patterns in a range of 1% to 100%.
10 more elements
Dependencies are inferred from the claim text.