Lamp for vehicle

1 . A lamp for a vehicle, comprising:

at least one light source; and

at least one optical member disposed in front of the at least one light source to allow light emitted from the at least one light source to be irradiated therethrough in a forward direction to form a beam pattern,

wherein the at least one optical member includes a plurality of facets arranged in a predetermined direction to constitute a light emission surface of the at least one optical member,

wherein the light is emitted from the light emission surface in the forward direction,

wherein a center line vertically extends in a perpendicular manner to an optical axis of the at least one optical member such that the center line divides the light emission surface into a first area and a second area, which are laterally disposed with respect to the center line,

wherein facets belonging to at least one of the first area or the second area are arranged such that positions of the facets are progressively shifted rearward with increasing lateral distance from the center line, thereby forming a rearwardly inclined interfacial surface between adjacent facets, and

wherein the rearwardly inclined interfacial surface causes light emitted therethrough to be refracted toward the center line.

2 . The lamp for the vehicle of claim 1 , wherein an edge area of each facet that forms the rearwardly inclined interfacial surface among the plurality of facets includes a curved shape having a predetermined curvature.

3 . The lamp for the vehicle of claim 1 , wherein the beam pattern is formed such that the light is irradiated below a cut-off line,

wherein the cut-off line includes a first line and a second line, which extend and are arranged in a left-right direction, and

wherein the first line is disposed higher than the second line.

4 . The lamp for the vehicle of claim 3 , wherein the first line corresponds to a driving lane of the vehicle, and the second line corresponds to an opposite lane to the driving lane.

5 . The lamp for the vehicle of claim 3 , wherein light for forming the first line is emitted through the first area, and light for forming the second line is emitted through the second area, and

wherein the light emission surface causes the light emitted from the first area and the light emitted from the second area to be refracted such that an arrangement direction of the first line and the second line is opposite to an arrangement direction of the first area and the second area.

6 . The lamp for the vehicle of claim 5 , wherein facets belonging to the first area of the light emission surface, among the plurality of facets, are arranged such that positions of the facets are progressively shifted rearward with increasing lateral distance from the center line, thereby forming the rearwardly inclined interfacial surface between adjacent facets.

7 . The lamp for the vehicle of claim 5 , wherein facets belonging to the second area of the light emission surface, among the plurality of facets, are arranged such that positions of the facets are progressively shifted rearward with increasing lateral distance from the center line, thereby forming the rearwardly inclined interfacial surface between adjacent facets.

8 . The lamp for the vehicle of claim 5 , wherein facets belonging to the second area of the light emission surface, among the plurality of facets, are arranged such that positions of the facets are progressively shifted forward with increasing lateral distance from the center line, thereby forming a forwardly inclined interfacial surface between adjacent facets, and

wherein the forwardly inclined interfacial surface allows at least some of light emitted therethrough to be refracted away from the center line.

9 . The lamp for the vehicle of claim 5 , wherein the plurality of facets are arranged such that positions thereof are progressively shifted rearward with increasing lateral distance from the center line, thereby forming the rearwardly inclined interfacial surface between adjacent facets.

10 . The lamp for the vehicle of claim 1 , wherein the at least one light source includes a plurality of light sources arranged in a vertical direction, and

wherein the at least one optical member includes a plurality of optical members arranged in an arrangement direction of the plurality of light sources.

11 . The lamp for the vehicle of claim 1 , wherein the at least one optical member includes: a light guiding lens disposed in front of the at least one light source; and an optical lens disposed in front of the light guiding lens, and

wherein the light emission surface of the at least one optical member constitutes a light emission surface of the optical lens.

12 . The lamp for the vehicle of claim 11 , wherein the light guiding lens includes:

a light receiving portion to which the light emitted from the at least one light source is incident;

a light emission portion disposed in front of the light receiving portion so as to emit the light incident thereto from the light receiving portion; and

a shield portion including an edge portion disposed at a rear focus of the light emission portion, wherein the edge portion is configured to obstruct a portion of the light from being directed to the light emission portion, and

wherein the plurality of facets are arranged along a direction in which the edge portion extends.

13 . The edge portion of claim 12 , wherein the edge portion includes: a first edge; and a second edge having a vertical level higher than a vertical level of the first edge, and

wherein facets belonging to one area corresponding to the first edge among the first area and the second area are arranged such that positions of the facets are progressively shifted rearward with increasing lateral distance from the center line, thereby forming the rearwardly inclined interfacial surface between adjacent facets.

14 . The lamp for the vehicle of claim 12 , wherein the edge portion extends in parallel to a horizontal line.

15 . The lamp for the vehicle of claim 12 , wherein the edge portion is inclined at a predetermined angle with respect to a reference line that is parallel to a horizontal line.