US 11,808,428 B2
Lamp module and lamp for vehicle including the same
Jin Young Jung, Gyeongsan-si (KR); and Seo Young Kim, Gyeongsan-si (KR)
Assigned to SL Corporation, Daegu (KR)
Filed by SL Corporation, Daegu (KR)
Filed on Jan. 6, 2023, as Appl. No. 18/094,258.
Claims priority of application No. 10-2022-0022309 (KR), filed on Feb. 21, 2022.
Prior Publication US 2023/0265984 A1, Aug. 24, 2023
Int. Cl. F21S 41/32 (2018.01); F21S 41/14 (2018.01)
CPC F21S 41/321 (2018.01) [F21S 41/18 (2018.01)] 14 Claims
OG exemplary drawing
 
1. A lamp module, comprising:
a light source unit that generates light; and
a light guide unit that emits at least a portion of the light incident from the light source unit to generate a beam pattern,
wherein the light guide unit comprises:
a light incident portion configured to receive at least a portion of the light incident from the light source unit;
a light emitting portion configured to emit at least a portion of the light incident through the light incident portion; and
a transmission portion disposed between the light incident portion and the light emitting portion and configured to transmit at least a portion of the light incident through the light incident portion to the light emitting portion,
wherein the transmission portion comprises:
a shield portion including an edge portion formed along a rear focal plane of the light emitting portion and configured to obstruct a portion of the light that is incident through the light incident portion and directed to the light emitting portion,
wherein the edge portion comprises:
a stepped portion;
a first edge that extends in a horizontal direction from a lower end of the stepped portion; and
a second edge that extends in the horizontal direction from an upper end of the stepped portion, and
wherein the stepped portion is disposed spaced apart by a predetermined distance from an optical axis of the light emitting portion.