CN-121993755-A - Lamp for vehicle

Abstract

The present invention relates to a vehicle lamp, and more particularly, to a vehicle lamp capable of forming a plurality of beam patterns while reducing installation space. The vehicle lamp according to an embodiment of the present invention may be a vehicle lamp as a beam pattern formed by at least one lamp module including a light source that emits light in an up-down direction, a light guide that guides the light emitted from the light source to travel forward, and an optical portion that is located in front of the light guide to transmit the light emitted from the light guide to form the beam pattern, the light guide including an incident portion that is arranged in the up-down direction with the light source to make the light emitted from the light source incident, an emitting portion that is located in front of the incident portion, and a transmitting portion that transmits the light incident in the up-down direction by the incident portion to travel toward the emitting portion.

Inventors

• CUI BINGDONG

Assignees

• SL株式会社

Dates

Publication Date

20260508

Application Date

20250915

Priority Date

20241101

Claims (18)

1. 1. A vehicle lamp for forming a beam pattern from at least one lamp module, wherein, The at least one luminaire module comprises: a light source that emits light in an up-down direction; a light guide part for guiding the light emitted from the light source to advance forward, and An optical part positioned in front of the light guide part to transmit the light emitted from the light guide part to form the beam pattern, The light guide portion includes: an incident portion arranged in an up-down direction with the light source to make light emitted from the light source incident; An injection part positioned in front of the incidence part, and And a transmitting unit configured to transmit light incident in the vertical direction through the incident unit to travel toward the emitting unit.
2. 2. The vehicular lamp according to claim 1, wherein, The incident portion includes: A center plane centered on an optical axis of the light source; a protruding surface protruding from an edge of the center surface toward the light source, and And a reflecting surface that reflects light incident from the protruding surface so as to travel along an optical axis direction of the light source.
3. 3. The vehicular lamp according to claim 1, wherein, The transmission unit includes an optical path adjustment unit that adjusts a path of light to forward the light that enters from the incidence unit and travels in the up-down direction.
4. 4. The vehicular lamp according to claim 3, wherein, The light path adjusting portion is formed such that a front end is spaced apart from the incident portion by a larger interval in a vertical direction than a rear end so as to reflect light incident through the incident portion to advance forward.
5. 5. The vehicular lamp according to claim 1, wherein, The transfer section includes: a shielding part formed in at least a portion of a lower surface of the transmitting part to block a portion of light traveling toward the emitting part, Wherein the front end of the shielding part is positioned at the rear focal point of the emitting part.
6. 6. The vehicular lamp according to claim 1, wherein, The injection part has a shape protruding forward.
7. 7. The vehicular lamp according to claim 1, wherein, The incident surface of the optical portion has a shape protruding rearward, and the emitting surface of the optical portion has a planar shape.
8. 8. The vehicular lamp according to claim 1, wherein, The at least one luminaire module comprises a plurality of luminaire modules, Wherein the transfer section includes: An optical path adjusting unit configured to adjust a path of the light to move forward the light incident in the vertical direction through the incidence unit, Wherein at least one of the inclination angle and the curvature of the optical path adjusting portion of one of the plurality of lamp modules and at least one of the inclination angle and the curvature of the optical path adjusting portion of the other of the plurality of lamp modules are different from each other in at least one direction.
9. 9. The vehicular lamp according to claim 1, wherein, The at least one luminaire module comprises a plurality of luminaire modules, The optical portions of the plurality of luminaire modules are integrally formed, An exit surface of the optical portion of each of the plurality of lamp modules from which light incident from the exit portion exits is formed to have a planar shape.
10. 10. A vehicle lamp, comprising: a first lamp module and a second lamp module, Wherein the first luminaire module comprises: a first light source that emits light in an up-down direction; a light guiding part for guiding the light emitted from the first light source to the front, and A first optical unit for transmitting the light emitted from the light guide unit, Wherein the second luminaire module comprises: at least one second light source emitting light in an up-down direction; a reflecting part for reflecting the light emitted from the at least one second light source to make the light travel forward, and A second optical unit for transmitting the light reflected by the reflecting unit, Wherein the first light source and the second light source are arranged on a common substrate.
11. 11. The vehicular lamp according to claim 10, wherein, The optical axis of the first light source and the optical axis of the second light source are parallel to each other.
12. 12. The vehicular lamp according to claim 10, wherein, The at least one second light source is located in front of the first light source.
13. 13. The vehicular lamp according to claim 10, wherein, The reflecting portion is integrally formed at an upper surface or a lower surface of the light guiding portion, and reflects light emitted from the at least one second light source to travel forward.
14. 14. The vehicular lamp according to claim 10, wherein, The reflecting portion includes at least one facet that reflects light emitted from the at least one second light source forward.
15. 15. The vehicular lamp according to claim 14, wherein, The at least one second light source comprises a plurality of second light sources, The at least one facet comprises a plurality of facets reflecting light emitted from each of the plurality of second light sources forward, At least one of a length and a curvature of one of the plurality of facets and at least one of a length and a curvature of another of the plurality of facets are different from each other in at least one direction.
16. 16. The vehicular lamp according to claim 10, wherein, The first optical portion and the second optical portion are integrally formed with each other in the up-down direction.
17. 17. The vehicular lamp according to claim 16, wherein, The first exit surface of the first optical portion and the second exit surface of the second optical portion are formed to have a planar shape to form a single exit surface.
18. 18. The vehicular lamp according to claim 16, wherein, The first incident surface of the first optical portion and the second incident surface of the second optical portion have a shape protruding rearward.

Description

Lamp for vehicle Technical Field The present invention relates to a vehicle lamp, and more particularly, to a vehicle lamp capable of forming a plurality of beam patterns while reducing installation space. Background In general, a vehicle is provided with various kinds of lamps having a lighting function for easily confirming an object located in the periphery of the vehicle during night driving and a signal function for informing the surrounding vehicle or pedestrians of the driving state of the vehicle. For example, a headlight, a fog lamp, and the like are mainly intended to function as illumination, a turn signal lamp, a tail lamp, a brake lamp, and the like are mainly intended to function as signals, and setting standards and specifications of the respective lamps have been regulated by regulations so as to sufficiently exert their respective functions. In such a vehicle lamp, an optical element such as a lens is arranged along the direction of light emitted from a light source, and since the path or brightness of the light emitted from the light source is controlled by the optical element and irradiated, there is a problem in that it is difficult to reduce the installation space in the light emission direction. In addition, in order to form the vehicle lamp into a plurality of beam patterns different from each other, the optical systems corresponding to the respective beam patterns need to be individually provided, and thus the installation space increases. Accordingly, a solution capable of forming a plurality of beam patterns while reducing the installation space required for forming the beam patterns is required. Prior art literature Patent literature Publication No. 10-2021-0045730 (2021.04.27. Disclosure) Disclosure of Invention The present invention provides a vehicle lamp capable of adjusting a path of light emitted from a light source to reduce a space for installation. Also provided is a vehicle lamp wherein the number of components is reduced and the cost is reduced by sharing a substrate provided with a plurality of light sources for forming different beam patterns. The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned can be clearly understood by those skilled in the art from the following description. In order to solve the technical problem, a vehicle lamp according to an embodiment of the present invention may be a vehicle lamp as a beam pattern formed by at least one lamp module, wherein the at least one lamp module may include a light source emitting light in an up-down direction, a light guiding portion guiding the light emitted from the light source to travel forward, and an optical portion located in front of the light guiding portion to transmit the light emitted from the light guiding portion to form the beam pattern, the light guiding portion including an incident portion arranged in the up-down direction with the light source to make the light emitted from the light source incident, an emitting portion located in front of the incident portion, and a transmitting portion transmitting the light incident in the up-down direction through the incident portion to travel toward the emitting portion. The incident part may include a center plane centered on an optical axis of the light source, a protruding plane protruding from an edge of the center plane toward the light source, and a reflecting plane reflecting light incident from the protruding plane to travel in an optical axis direction of the light source. The transmission unit may include an optical path adjustment unit that can forward light that is incident from the incidence unit and travels in the up-down direction by adjusting the path of the light. The light path adjusting portion may be formed such that a front end is spaced apart from the incident portion in a vertical direction by a larger interval than a rear end so as to reflect light incident through the incident portion to advance forward. The transmitting part may include a shielding part formed at least a portion of a lower surface of the transmitting part to block a portion of light traveling toward the emitting part, wherein a front end of the shielding part may be located at a rear focal point of the emitting part. The injection part may have a shape protruding toward the front. The incident surface of the optical portion may have a shape protruding rearward, and the emitting surface of the optical portion may have a planar shape. The at least one lamp module may include a plurality of lamp modules, wherein the transmitting part may include an optical path adjusting part that forwards light incident in an up-down direction through the incident part by adjusting a path of the light, wherein at least one of an inclination angle and a curvature of the optical path adjusting part of one of the plurality of lamp modules and at least one of an inclination angle and a curvatu