Lamp for vehicles

Patent metadata

Field	Value
Publication number	US-12467599-B2
Application number	US-202418980403-A
Country	US
Kind code	B2
Filing date	Dec 13, 2024
Priority date	Apr 29, 2024
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

Disclosed is a lamp for vehicles, which includes a light source, a reflector configured to reflect light incident from the light source, an optical system including a lens configured to condense the light reflected from the reflector to form a light distribution, the lens having a plurality of facets formed on a light-emitting surface thereof, wherein a line connecting centers of the plurality of facets forms a straight line or a curved line that is not perpendicular to an optical axis of the optical system or is asymmetrical with respect to the optical axis, and light from the light-emitting surface is incident on an outer lens of the lamp.

First claim

What is claimed is:

1 . A lamp for vehicles, comprising:
a light source; a reflector configured to reflect light incident from the light source; an outer lens; and an optical system comprising a lens configured to condense the light reflected from the reflector to form light distribution, the lens having a light-emitting surface and a plurality of facets formed on the light-emitting surface, wherein light emitted from the light-emitting surface is incident on the outer lens, wherein a line connecting a plurality of centers of the plurality of facets is straight or curved, wherein the line connecting the plurality of centers of the plurality of facets is not perpendicular to an optical axis of the optical system or is asymmetrical with respect to the optical axis, wherein the plurality of facets is disposed in an array extending in a horizontal direction and a vertical direction, wherein the plurality of facets includes a plurality of first facets disposed side by side in the horizontal direction, wherein a plurality of light-emitting surfaces of the plurality of first facets have a plurality of horizontal slopes having a predetermined difference in inclination angle or a plurality of curvatures having a predetermined difference in curvature, and wherein the predetermined difference in inclination angle or the predetermined difference in curvature is set according to an angle formed by a line connecting a plurality of centers of the plurality of first facets and the optical axis of the optical system.

2 . The lamp according to claim 1 , wherein a plurality of curvatures of the plurality of facets are formed on the light-emitting surface such that a focus of the light-emitting surface is located on the optical axis of the optical system.

3 . The lamp according to claim 1 , wherein each of the plurality of facets is formed such that a first curvature in the vertical direction and a second curvature in the horizontal direction are identical.

4 . The lamp according to claim 1 , wherein a curvature of each of the plurality of facets is zero.

5 . The lamp according to claim 1 , wherein the lens further has a light-incident surface configured to condense the light reflected from the reflector.

6 . The lamp according to claim 1 , wherein a skin angle of the light-emitting surface of the lens identical to that of the outer lens.

7 . A lamp for vehicles, comprising:
a light source; a reflector configured to reflect light incident from the light source; an outer lens; and an optical system comprising a lens configured to condense the light reflected from the reflector to form light distribution, the lens having a light-emitting surface and a plurality of facets formed on the light-emitting surface, wherein light emitted from the light-emitting surface is incident on the outer lens, wherein a line connecting a plurality of centers of the plurality of facets is straight or curved, wherein the line connecting the plurality of centers of the plurality of facets is not perpendicular to an optical axis of the optical system or is asymmetrical with respect to the optical axis, wherein the plurality of facets is disposed in an array extending in a horizontal direction and a vertical direction, wherein the plurality of facets includes a plurality of first facets disposed side by side in the vertical direction, wherein a plurality of light-emitting surfaces of the plurality of first facets have a plurality of vertical slopes having a predetermined difference in inclination angle or a plurality of curvatures having a predetermined difference in curvature, and wherein the predetermined difference in inclination angle or the predetermined difference in curvature is set according to an angle formed by the line connecting a plurality of centers of the plurality of first facets and the optical axis of the optical system.

8 . A vehicle comprising:
a light source; a reflector configured to reflect light incident from the light source; an outer lens; and an optical system comprising a lamp comprising a lens configured to condense the light reflected from the reflector to form a light distribution, the lens having a light-emitting surface and a plurality of facets formed on the light-emitting surface, wherein light emitted from the light-emitting surface is incident on the outer lens, wherein a line connecting a plurality of centers of the plurality of facets is straight or curved, wherein the line connecting the plurality of centers of the plurality of facets is not perpendicular to an optical axis of the optical system or is asymmetrical with respect to the optical axis, wherein the plurality of facets is disposed in an array extending in a horizontal direction and a vertical direction, wherein the plurality of facets includes a plurality of first facets disposed side by side in the horizontal direction, wherein a plurality of light-emitting surfaces of the plurality of first facets have a plurality of horizontal slopes having a predetermined difference in inclination angle or a plurality of curvatures having a predetermined difference in curvature, and wherein the predetermined difference in inclination angle or the predetermined difference in curvature is set according to an angle formed by a line connecting a plurality of centers of the plurality of first facets and the optical axis of the optical system.

Assignees

• Hyundai Mobis Co Ltd

Inventors

• Lee Hyun Hwa
• Kim Jong Eun

Classifications

• F21V5/045

  the lens having discontinuous faces, e.g. Fresnel lenses · CPC title

• F21S41/285

  Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805 · CPC title

• F21S41/32

  Optical layout thereof · CPC title

• F21S41/275 Primary

  Lens surfaces, e.g. coatings or surface structures · CPC title

• F21S41/255

  Lenses with a front view of circular or truncated circular outline · CPC title