DE-202025107140-U1 - Vehicle lighting module and vehicle light containing this

Abstract

Vehicle lighting module, comprising: a light source configured to emit light; and a light guide component arranged on one side of the light source, the light guide part has: a front surface section that defines a front area of the light guide part; a rear surface section that defines a rear area of the light guide part and faces the light source; an upper surface section that is connected to the front surface section and the rear surface section and defines an upper area of the light guide part; a lower surface section that is connected to the front surface section and the rear surface section and defines a lower area of the light guide part; and lateral surface sections that define the lateral surfaces of the light guide part based on a left/right direction (W), wherein the lateral surface section has a front projecting area which has a section that projects forward from the front surface section, and wherein the front protruding area is configured such that light emitted from the light source and entering the front protruding area moves forward while being totally reflected within the front protruding area.

Assignees

• HYUNDAI MOBIS CO LTD

Dates

Publication Date

20260513

Application Date

20251121

Priority Date

20241217

Claims (20)

1. Vehicle lighting module comprising: a light source configured to emit light; and a light guide part arranged on one side of the light source, the light guide part comprising: a front surface section defining a front region of the light guide part; a rear surface section defining a rear region of the light guide part and facing the light source; an upper surface section connected to the front surface section and the rear surface section, defining an upper region of the light guide part; a lower surface section connected to the front surface section and the rear surface section, defining a lower region of the light guide part; and lateral surface sections that define lateral surfaces of the light guide portion based on a left/right direction (W), whereby the lateral surface section has a front protruding area that has a section projecting forward from the front surface section, and whereby the front protruding area is configured such that light emitted from the light source and entering the front protruding area travels forward while undergoing total internal reflection in the front protruding area.
2. Vehicle lighting module according to Claim 1 , wherein the front protruding area in the left/right direction (W) protrudes outwards from the other areas of the lateral surface section, which are different from the front protruding area.
3. Vehicle lighting module according to Claim 2 , wherein the thickness of the front protruding area is constant in the left/right direction (W).
4. Vehicle lighting module according to one of the Claims 1 until 3 , where the entire optical fiber section is integrally formed.
5. Vehicle lighting module according to one of the Claims 1 until 4 , wherein the front protruding area is only arranged on one of the two opposite lateral surface sections of the light guide part based on the left/right direction (W).
6. Vehicle lighting module according to one of the Claims 1 until 5 , wherein a distance (d) by which the front protruding area protrudes from the front surface section is less than or equal to 2.0 times a focal length (f) which is a distance between the front surface section and a horizontal focal point (F) of the front surface section.
7. Vehicle lighting module according to Claim 6 , wherein the distance (d) by which the front protruding area protrudes from the front surface section is greater than or equal to 1.0 times the focal length (f), which is the distance between the front surface section and the horizontal focal point (F) of the front surface section.
8. Vehicle lighting module according to one of the Claims 1 until 7 , wherein the light guide part further comprises a light collecting area formed between the upper surface section and the lower surface section and arranged such that it faces the light source, wherein the light collecting area has a rearwardly convex outer surface and a curved surface section in which the light emitted by the light source is totally reflected, and wherein the curved surface section has a geometric shape in which at least a part of the light emitted by the light source entering the light guide part is totally reflected through the curved surface section and then passes through a horizontal focal point (F) of the front surface section.
9. Vehicle lighting module according to Claim 8 , wherein the light emitted by the light source passes closer to the horizontal focal point (F) of the front surface section, since the light is totally reflected through a part of the curved surface section that is closer to the light source.
10. Vehicle lighting module according to Claim 8 or 9 , wherein the light emitted by the light source passes through a point that is spaced farther back from the horizontal focal point (F) of the front surface section, since the light is totally reflected through a part of the curved surface section that is farther away from the light source.
11. Vehicle lighting module according to one of the Claims 8 until 10 , wherein the front protruding area is arranged such that, among the light rays emitted by the light source, those which are totally reflected through a front end of the curved surface section reach a rear end of the front protruding area.
12. Vehicle lighting module according to one of the Claims 1 until 11 , wherein the lower surface section further comprises: a downwardly projecting area; a light guide projection area which is spaced forward from the downwardly projecting area and projects downwards; and a lower reflection area which is provided between the downwardly projecting area and the light guide projection area and which has a shape which is recessed upwards with respect to the downwardly projecting area and the light guide projection area.
13. Vehicle lighting module according to Claim 12 , wherein a horizontal cross-section of a rear side of the optical fiber projection area has a section with a rearwardly convex shape.
14. Vehicle lighting module according to Claim 12 or 13 , wherein the lower reflection area has a step section formed at a boundary between one side surface based on the left/right direction (W) and the other side surface based on the left/right direction (W).
15. Vehicle lighting module according to one of the Claims 1 until 14 , further comprising a light absorption section located on the front protruding area which absorbs light emitted from the light source.
16. Vehicle lighting module according to Claim 15 , wherein the light absorption section is provided as a plurality of light absorption sections spaced apart from each other in a forward/backward direction.
17. Vehicle light that switches the vehicle lighting module to one of the Claims 1 until 16 exhibits, wherein the vehicle lighting module is provided as a plurality of vehicle lighting modules spaced apart from each other in a left/right direction (W).
18. Vehicle light after Claim 17 , wherein the vehicle lighting module is provided as a plurality of vehicle lighting modules arranged such that they protrude further forward in one direction of the left/right direction (W).
19. Vehicle light after Claim 17 or 18 , wherein the front protruding area has a plate shape.
20. Vehicle light after one of the Claims 17 until 19 , wherein the light absorption section is formed over an outer surface of the front protruding area.

Description

Cross-reference to related registration The present application claims the priority and benefit of Korean patent applications No. 10-2024-0188990 and No. 10-2024-0188991 , which were filed with the Korean Intellectual Property Office on December 17, 2024, and the entire contents of which are incorporated herein by reference for all purposes. background 1. Field of invention The present disclosure relates to a vehicle lighting module and a vehicle light containing this module. 2. Description of the state of the art There is a case where a large number of lighting modules are mounted in a vehicle to form a single type of light distribution pattern. Each of the numerous lighting modules forms a local light distribution pattern, and these local light distribution patterns are combined to form a single light distribution pattern. However, when numerous lighting modules are installed, they must be arranged in close physical proximity. In the prior art, a problem exists: glare occurs because the light rays emitted by the closely spaced modules intersect. Specifically, glare arises because some of the light rays emitted by one module enter another adjacent module and then propagate outwards. Brief description of the invention The present invention was developed in an effort to prevent glare that can occur when a large number of lighting modules are mounted. In general terms, a vehicle lighting module comprises: a light source configured to emit light; and a light guide part provided on one side of the light source, wherein the light guide part has: a front surface section defining a front region of the light guide part; a rear surface section defining a rear region of the light guide part and facing the light source; an upper surface section connected to the front surface section and the rear surface section, defining an upper region of the light guide part; and a lower surface section connected to the front surface section and the rear surface section, defining a lower region of the light guide part. and lateral surface sections defining lateral surfaces of the light guide part based on a left/right direction (W), wherein the lateral surface section has a front protruding area having a section projecting forward from the front surface section, and wherein the front protruding area is configured such that light emitted from the light source and entering the front protruding area travels forward while undergoing total internal reflection in the front protruding area. The front protruding area can protrude outwards in the left/right direction (W) from the other areas of the lateral surface section, which are different from the front protruding area. The thickness of the front protruding area in the left/right direction (W) can be constant. The entire light guide section can be integrally designed. The front protruding area can only be provided on one of the two opposite lateral surface sections of the light guide part based on the left/right direction (W). A distance (d) by which the front protruding area protrudes from the front surface section can be less than or equal to 2.0 times a focal length (f) representing a distance between the front surface section and a horizontal focal point (F) of the front surface section. The distance (d) by which the front protruding area protrudes from the front surface section can be greater than or equal to 1.0 times the focal length (f), which represents the distance between the front surface section and the horizontal focal point (F) of the front surface section. The light guide part can furthermore have a light collecting area formed between the upper surface section and the lower surface section and arranged such that it is oriented towards the light source, wherein the light collecting area has a rearwardly convex outer surface and a curved surface section in which light emitted by the light source is totally reflected, and wherein the curved surface section has a geometric shape in which at least part of the light emitted by the light source entering the light guide part is totally reflected through the curved surface section and then passes through a horizontal focal point (F) of the front surface section. The light emitted by the light source can pass closer to the horizontal focal point (F) of the front surface section because the light is totally reflected through a part of the curved surface section that is closer to the light source. The light emitted by the light source can pass through a point that is located farther back from the horizontal focal point (F) of the front surface section, because the light is totally reflected through a part of the curved surface section that is farther away from the light source. The front protruding area can be arranged such that light rays that are totally reflected through a front end of the curved surface section reach a rear end of the front protruding area among the light rays emitted by the light source. The lower surface secti