Illumination device for automotive headlamps

Abstract

To provide an improved lighting device. A lighting device for a vehicle headlamp for generating a low beam, the vertical extension of the low beam extending along a VV line from at least 0° to at least −10° below the VV line. The lighting device (10) includes an optical body (100) including a common light entrance portion (110), a light exit portion (130) and a shell surface (140) defining the optical body (100), and a projection lens system (200) configured to project a light beam forward of the lighting device (10). The projection lens system (200) is configured to combine with the optical body (100) to generate a low beam that is illuminated by the projection lens system (200). The optical body (100) includes a first set of optically active surfaces for directing a light beam along a first light path (LR1). The first set of optically active surfaces includes first and second light deflection surfaces (300a, 300b) and a first light exit surface (300c). The first and second light deflection surfaces (300a, 300b) are disposed on the shell surface (140), and the first light exit surface (300c) is disposed on the light exit portion (130). A light ray traveling along the first light path (LR1) enters the first deflection surface (300a) and is deflected to the second deflection surface (300b), and a light ray entering the second deflection surface (300b) is deflected to the first light exit surface (300c), and the light ray emitted by the first light exit surface (300c) contributes to generating a first portion of the low beam. The optical body (100) includes a second set of optically active surfaces for directing light rays along the second and third light paths (LR2, LR3), the second set of optically active surfaces including a third light deflection surface (400a) and a second light exit surface (400b), the third light deflection surface (400a) being disposed on the shell surface (140) and the second light exit surface (400b) being disposed away from the first light exit surface (300c) of the light exit portion (130), the light rays traveling along the second light path (LR2) entering the third deflection surface (400a) are deflected to the second light exit surface (400b) for separation outside the optical body (100), and the light rays emitted by the second light exit surface (400b) contribute to generating a second portion of the low beam.

Description

Technical Field

[0001] The present invention relates to an illumination device for an automotive headlamp for generating a low beam, wherein the vertical (direction) extension of the low beam extends along the V-V line from at least 0° to at least 10° below on the V-V line, The illumination device is · at least one light source configured to emit light rays in a plurality of different light paths, · an optical body, · a common light incident portion for coupling (incident) the light rays from the at least one light source into the optical body, provided that the light incident portion has at least one light collection element, and the at least one light collection element is assigned (associated) to each light source and is configured to couple (incident) the light rays from the assigned light source into the optical body, · a light exit portion for separating (emitting) the light rays coupled (incident) into the optical body through the common light incident portion to the outside of the optical body in the main direction of the illumination device, · a shell surface defining (delimiting) the optical body, provided that the shell surface is configured to deflect the light rays coupled (incident) into the optical body, and the shell surface extends between the common light incident portion and the light exit portion, including an optical body, · a projection lens system disposed downstream of the optical body along the main direction for receiving the light rays emitted from the light exit portion of the optical body and including at least one lens, provided that the projection lens system is configured to project the light rays forward of the illumination device, including, The projection lens system combined with the at least one light source and the optical body is configured to generate a low beam irradiated by the projection lens system. Relates to an illumination device.

[0002] The present invention further relates to an automotive headlamp including at least one illumination device of the present invention.

Background Art

[0003] In certain cases, especially when high-resolution high beams and / or high-resolution low beams are required for automotive headlights, the configuration of the corresponding lighting device requires certain conditions that often result in not meeting the legal requirements for low beams (see, for example, the EU L250 / 92 gazette - August 22, 2014).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

Summary of the Invention

Problems to be Solved by the Invention

[0005] An improved lighting device is needed to also meet the conditions for the low beam in terms of lighting intensity values and the required spatial lighting on the road.

[0006] The object of the present invention is to provide an improved lighting device.

Means for Solving the Problems

[0007] According to a first aspect of the present invention, there is provided an illumination device for an automotive headlamp. The illumination device generates a low beam, wherein the vertical extension of the low beam extends along the V-V line from at least 0° to at least 10° below on the V-V line, and the illumination device includes · at least one light source configured to emit light rays in a plurality of different light paths, · an optical body, · a common light incident portion for coupling light rays from the at least one light source into the optical body, provided that the light incident portion has at least one light collecting element, and each of the at least one light collecting element is assigned to a respective light source and is configured to couple light rays from the assigned light source into the optical body, · a light emitting portion for separating the light rays coupled into the optical body through the common light incident portion to the outside of the optical body in the main direction of the illumination device, · a shell surface defining the optical body, provided that the shell surface is configured to deflect the light rays coupled into the optical body, and the shell surface extends between the common light incident portion and the light emitting portion, an optical body including · a projection lens system disposed downstream of the optical body along the main direction for receiving the light rays emitted from the light emitting portion of the optical body and including at least one lens, provided that the projection lens system is configured to project light rays forward of the illumination device, including the projection lens system combined with the at least one light source and the optical body is configured to generate a low beam irradiated by the projection lens system, the optical body includes a first set of optical action surfaces for guiding at least a part of the light rays coupled into the optical body through the common light incident portion from the common light incident portion to the light emitting portion along a first light path, the first set of optical action surfaces includes a first and a second light deflection surface and a first light emitting surface, the first and second light deflection surfaces are arranged on the shell surface, and the first light emitting surface is arranged on the light emitting portion, the light rays traveling along the first light path are incident on the first light deflection surface and deflected to the second light deflection surface, and the light rays incident on the second light deflection surface are deflected to the first light emitting surface for separation to the outside of the optical body, the light rays emitted by the first light emitting surface contribute to the generation of a first part of the low beam. The optical body includes a second set of optical active surfaces for guiding at least a portion of the light rays coupled into the optical body through the common light incident portion from the common light incident portion to the light emitting portion along the second and third light paths. The second set of optical active surfaces includes a third light deflection surface and a second light emitting surface. The third light deflection surface is disposed on the shell surface, and the second light emitting surface is disposed away from the first light emitting surface of the light emitting portion. The light rays traveling along the second light path are incident on the third light deflection surface and deflected to the second light emitting surface for separation to the outside of the optical body. The light rays traveling along the third light path are directly incident on the second light emitting surface from the common light incident portion. The light rays emitted by the second light emitting surface contribute to the generation of the second portion of the low beam. The first portion of the low beam provided by the first light emitting surface and the second portion of the low beam provided by the second light emitting surface form a low beam, and the vertical extension of the low beam extends downward along the V-V line from at least 0° to -10° or less on the V-V line. Characterized in that. According to a second aspect of the present invention, a vehicle headlamp including at least one lighting device of the present invention is provided.

Mode for Carrying Out the Invention

[0008] The preferred embodiments of the present invention are shown below. (Embodiment 1) Refer to the first aspect of the present invention described above. (Embodiment 2) In the lighting device according to Embodiment 1, It is preferable that the second light deflection surface and the third light deflection surface are coupled via a concave coupling surface. Preferably. (Embodiment 3) In the lighting device according to Embodiment 1, The projection lens system includes an optical axis, and the first light emitting surface has a surface vector, and the surface vector is inclined with respect to the optical axis of the projection lens system. Preferably. (Embodiment 4) In the lighting device according to Embodiment 3, The second light emitting surface has a surface vector, and the surface vector is inclined with respect to the optical axis of the projection lens system. Preferably. (Embodiment 5) In the lighting device according to Embodiment 1, It is preferable that the light collection element is configured as a collimator optical system. Preferably. (Embodiment 6) In the lighting device according to Embodiment 1, The light collection element is · A first lens having an optical axis, provided that the first lens is configured to direct the light incident on the first lens to the first light path, and · A second lens having an optical axis, provided that the second lens is configured to direct the light incident on the second lens toward the third optical path, including the first lens and the second lens are arranged adjacent to each other directly such that their optical axes have an offset with respect to each other in the horizontal direction and / or the vertical direction is preferred. (Embodiment 7) In the lighting device according to Embodiment 6, the optical axis of the first lens of the light collection element and the optical axis of the second lens are rotated with respect to each other around an axis perpendicular to the main direction is preferred. (Embodiment 8) In the lighting device according to Embodiment 1, the light collection element is configured as a compound parabolic concentrator or a non-imaging compound parabolic concentrator is preferred. (Embodiment 9) In the lighting device according to Embodiment 1, the first light emitting surface and the shell surface intersect at a common plane cut-off line, and the common plane cut-off line generates an asymmetric cut-off boundary for a low beam is preferred. (Embodiment 10) In the lighting device according to Embodiment 9, the projection lens system includes an optical axis and at least one focus arranged on the optical axis, the common plane cut-off line is arranged at the at least one focus is preferred. (Embodiment 11) In the lighting device according to Embodiment 1, the common light incident portion and the light emitting portion have an offset with respect to each other along the main direction is preferred. (Embodiment 12) In the lighting device according to Embodiment 1, the lighting device includes at least two light sources, the light sources are arranged on a horizontal line substantially perpendicular to the main direction is preferred. (Embodiment 13) In the lighting device according to Embodiment 1, the at least one light source is preferably an LED is preferred. (Embodiment 14) Refer to the second perspective of the present invention described above.

[0009] To achieve the above object, the optical body includes a first set of optical action surfaces (s) for guiding at least a part of the light rays coupled (incident) into the optical body through a common light incident portion from the common light incident portion to the light exit portion along a first light path, The first set of optical action surfaces includes a first light deflection surface, a second light deflection surface, and a first light exit surface. The first light deflection surface and the second light deflection surface are arranged on a shell surface, and the first light exit surface is arranged at the light exit portion. The light traveling along the first optical path is incident on the first light deflection surface and deflected toward the second light deflection surface. The light ray incident on the second light deflection surface is deflected toward the first light emission surface for separation to the outside of the optical body. The light ray emitted by the first light emission surface contributes to the generation of the first part of the low beam. The optical body includes a second set of optical action surfaces for guiding at least a part of the light rays coupled (incident) into the optical body through a common light incident portion from the common light incident portion to a light emission portion along the second and third optical paths. The second set of optical action surfaces includes the third light deflection surface and the second light emission surface. The third light deflection surface is arranged on the shell surface, and the second light emission surface is arranged at a position away from the first light emission surface of the light emission portion. The light ray traveling along the second optical path is incident on the third light deflection surface and deflected toward the second light emission surface for separation to the outside of the optical body. The light ray traveling along the third optical path is directly incident on the second light emission surface from the common light incident portion. The light ray emitted by the second light emission surface contributes to the generation of the second part of the low beam. The first part of the low beam provided by the first light emission surface and the second part of the low beam provided by the second light emission surface form a low beam. The vertical (direction) extension of the low beam is along the V-V line and extends downward from at least 0° to -10° or less on the V-V line. (At least -10° downward) extends to.

[0010] Advantageously, the light rays are deflected at the first, second, and third light deflection surfaces by total internal reflection.

[0011] Advantageously, the second light deflection surface and the third light deflection surface Concave are coupled (to each other) through a coupling surface.

[0012] Advantageously, the projection lens system includes an optical axis. The first light emission surface has a surface vector, and the surface vector is inclined with respect to the optical axis of the projection lens system.

[0013] Advantageously, the second light emitting surface has a surface vector, and the surface vector is inclined with respect to the optical axis of the projection lens system.

[0014] Advantageously, the light collection element is configured as a collimator optical system.

[0015] Advantageously, the light collection element · a first lens having an optical axis, provided that the first lens is configured to direct the light incident on the first lens toward a first optical path, and · a second lens having an optical axis, provided that the second lens is configured to direct the light incident on the second lens toward a third optical path, including the first lens and the second lens are arranged adjacent to each other directly such that their optical axes have an offset with respect to each other in the horizontal plane (direction) and / or the vertical plane (direction).

[0016] The collimator optical system receives light from the light source, and two different optical paths are obtained by different orientations (alignments) or directions of the two lenses (or two refractive surfaces of the collimator optical system).

[0017] Advantageously, the optical axis of the first lens and the optical axis of the second lens of the light collection element are rotated with respect to each other around an axis perpendicular to the main direction (a (predetermined) angle is formed: pivoted).

[0018] Advantageously, the light collection element is configured as a Compound Parabolic Concentrator, preferably as a non-imaging Compound Parabolic Concentrator.

[0019] Advantageously, the first light emitting surface and the shell surface intersect at a common surface section line, and the common surface section line generates an asymmetric cut-off boundary (line) for the low beam.

[0020] Advantageously, the projection lens system includes an optical axis and at least one focal point arranged on the optical axis, and the common plane cutting line is arranged at at least one focal point.

[0021] Advantageously, the common light incident portion and the light emitting portion have an offset with respect to each other along the main direction.

[0022] Advantageously, the lighting device includes at least two light sources, and the light sources are arranged on a horizontal line substantially perpendicular to the main direction.

[0023] Advantageously, at least one light source is an LED.

[0024] The above object can also be achieved by an automotive headlamp including at least one lighting device of the present invention.

[0025] Hereinafter, for further explanation of the present invention, exemplary and non-limiting embodiments (or examples) as shown in the drawings will be described.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Example

[0027] FIG. 1 shows an example of a lighting device 10 for an automotive headlamp for generating a low beam. The vertical (direction) extension of the low beam extends along the V-V line from at least 0° on the V-V line to at least 10° below. This low beam is shown in detail in FIG. 5.

[0028] The lighting device 10 includes a plurality of light sources 50 configured to emit light rays in different light paths. The plurality of light sources 50 are configured as LEDs in the illustrated example. Further, the light source(s) 50 are arranged on a horizontal line that is substantially perpendicular to the main direction X.

[0029] Furthermore, the lighting device 10 includes an optical body 100 whose cross-section along the Y-Y line shown in FIG. 1 is shown in FIG. 2. The optical body 100 includes a common light incident portion 110 for coupling (incident) light rays from the light source 50 into the optical body 100. The light incident portion 110 has a plurality of light collection elements 120. The plurality of light collection elements 120 are each assigned (associated) with each light source 50 and are configured to couple (incident) light rays from the assigned light source into the optical body 100. The light collection element 120 is configured as a collimator optical system, and the light collection element 120 can also be configured as a Compound Parabolic Concentrator, preferably a non-imaging Compound Parabolic Concentrator.

[0030] Furthermore, the optical body 100 includes a light emitting portion 130 for separating (emitting) the light beam coupled (incident) into the optical body 100 through the common light incident portion 110 to the outside of the optical body 100 in the main direction X of the illumination device 10, and a shell surface 140 that limits (forms or defines the boundary of) the optical body 100. The shell surface 140 is configured to deflect the light beam coupled (incident) into the optical body 100, and the shell surface 140 extends between the common light incident portion 110 and the light emitting portion 130.

[0031] The common light incident portion 110 and the light emitting portion 130 have an offset (shift) relative to each other along the main direction X and along an axis perpendicular to the main direction X.

[0032] The illumination device 10 further includes a projection lens system 200 disposed downstream of the optical body 100 along the main direction X for receiving the light beam emitted from the light emitting portion 130 of the optical body 100, and including at least one lens (in the illustrated example, the projection lens system 200 includes two lenses). The projection lens system 200 is configured to project the light beam forward of the illumination device 10, and the projection lens system 200 is configured to generate a low beam light distribution irradiated by the projection lens system 200 in combination with at least one light source 50 and the optical body 100.

[0033] Regarding FIG. 2, the optical body 100 includes a first set of optical action surfaces (plural) for guiding at least a part of the light beam coupled (incident) into the optical body 100 through the common light incident portion 110 from the common light incident portion 110 to the light emitting portion 130 along the first light path LR1.

[0034] The first set of (optical) action surfaces includes a first light deflection surface 300a and a second light deflection surface 300b, and a first light emitting surface 300c. The first light deflection surface 300a and the second light deflection surface 300b are disposed on the shell surface 140, and the first light emitting surface 300c is disposed on the light emitting portion 130.

[0035] The light rays traveling along the first light path LR1 are incident on the first light deflection surface 300a and deflected toward the second light deflection surface 300b. The light rays incident on the second light deflection surface 300b are deflected toward the first light emission surface 300c for separating (emitting) the light of the optical body 100 to the outside. The light rays emitted by the first light emission surface 300c contribute to the generation of the first part LB1 of the low beam shown in FIG. 5.

[0036] The optical body 100 further includes a second set of optical action surfaces for guiding at least a part of the light rays coupled (incident) into the optical body 100 through the common light incident part 110 from the common light incident part 110 to the light emission part 130 along the second light path LR2 and the third light path LR3.

[0037] The second set of optical action surfaces includes a third light deflection surface 400a and a second light emission surface 400b. The third light deflection surface 400a is arranged on the shell surface 140, and the second light emission surface 400b is arranged at a position away from the first light emission surface 300c of the light emission part 130.

[0038] The light rays traveling along the second light path LR2 are incident on the third light deflection surface 400a and deflected toward the second light emission surface 400b for separating (emitting) to the outside of the optical body 100. The light rays traveling along the third light path LR3 are directly incident on the second light emission surface 400b from the common light incident part 110. The light rays emitted by the second light emission surface 400b also contribute to the generation of the second part LB2 of the low beam shown in FIG. 5.

[0039] The first part LB1 of the low beam provided (contributed) by the first light emission surface 300c and the second part LB2 of the low beam provided (contributed) by the second light emission surface 400b form a low beam, and the vertical (direction) extension of the low beam extends along the V-V line from at least 0° to at least -10° below on the V-V line.

[0040] As can also be found in FIG. 2, the second light deflection surface 300b and the third light deflection surface 400a are on the shell surface 140 ConcaveThey are coupled (to each other) via a coupling surface.

[0041] Furthermore, the first light-emitting surface 300c and the shell surface 140 intersect at a common surface section line 150, the common surface section line 150 generates an asymmetric cut-off boundary for the low-beam light distribution, the projection lens system 200 includes an optical axis A and at least one focal point F arranged on the optical axis A, and the common surface section line 150 is arranged at at least one focal point F so as to be found in FIG. 2.

[0042] The first light-emitting surface 300c of the optical body 100 has a surface vector SV1, the surface vector SV1 is inclined with respect to the optical axis A of the projection lens system 200, therefore, the first light-emitting surface 300c is inclined, and the surface vector SV1 of the first light-emitting surface 300c is inclined upward when viewed in a state where the lighting device 10 is correctly mounted on the automotive headlight or the vehicle.

[0043] Also, the second light-emitting surface 400b has a surface vector SV2, the surface vector SV2 is inclined with respect to the optical axis A of the projection lens system 200, therefore, the second light-emitting surface 400b is inclined, and the surface vector SV2 of the second light-emitting surface 400b is inclined upward when viewed in a state where the lighting device 10 is correctly mounted on the automotive headlight or the vehicle.

[0044] FIG. 3 shows another example of the exemplary lighting device 10 having the same optical body 100 as described above, but the projection lens system 200 having exactly one lens. Also, the cut-off line is located within the optical axis A of the projection lens system 200.

[0045] Furthermore, as can be found in FIGS. 2 and 3, the first light-emitting surface 300c of the optical body 100 is inclined rearward (upstream) or in the direction opposite to the main direction X of the lighting device 10.

[0046] Furthermore, FIG. 3 schematically shows an example of how the light rays emitted by the first light emitting surface 300c contribute to the generation of the first portion LB1 of the low beam. The first portion LB1 of the low beam starts from (has its origin at) the H-H line at an angle of 0° along the V-V line and extends downward at an angle β1 on the V-V line. The angle β1 in the illustrated example is from 8° to 8.5°.

[0047] Furthermore, the light rays emitted by the second light emitting surface 400b contribute to the generation of the second portion LB2 of the low beam, and the first portion LB1 and the second portion LB2 of the low beam extend downward together at an angle β2 on the V-V line. The angle β2 in the illustrated example is at least -10° starting from 0° (i.e., the V-V line [H-H line]) or the position of the intersection of the V-V line and the H-H line.

[0048] FIG. 4 is a perspective view of the optical body 100 as seen from the rear (upstream side), and the light collection element(s) is / are shown in more detail. Each light collection element 120 includes a first lens 120a having an optical axis A1 and a second lens 120b having an optical axis A2. The first lens 120a is configured to direct the light incident on the first lens 120a toward the first optical path LR1, and the second lens 120b is configured to direct the light incident on the second lens 120b toward the third optical path LR3.

[0049] The first lens 120a and the second lens 120b are arranged to be directly adjacent to each other such that their optical axes A1 and A2 have an offset (shift) with respect to each other in the horizontal direction and / or the vertical direction.

[0050] The terms "up", "down", "vertical", "horizontal", "front", "forward", "rear" and "back" should be understood with reference to an automotive headlamp or a lighting device properly mounted on an automobile.

[0051] In the illustrated example, the optical axis A1 of the first lens 120a and the optical axis A2 of the second lens 120b of each light collection element 120 are rotated with respect to each other around an axis perpendicular to the main direction X (a (predetermined) angle is formed: pivoted).

[0052] Further, the first and second lenses 120a and 120b of each light collection element 120 have a lens-shaped surface at the center and a total reflection surface(s) at the periphery.

[0053] FIG. 5 shows the low beam light distribution generated by the illumination device 10 of the above-described example shown in the figure. The low beam light distribution includes a first portion LB1 of the low beam and a second portion LB2 of the low beam, and the vertical (direction) extension of the low beam light distribution extends along the V-V line from 0° to at least 10° below on the V-V line, and the angle β2 described with respect to FIG. 3 is also valid for FIG. 5.

Claims

1. An illumination device for an automotive headlamp, wherein the illumination device generates a low beam, wherein the vertical extension of the low beam extends along the V-V line from at least 0° to at least 10° below on the V-V line, and wherein the illumination device (10) - at least one light source (50) configured to emit light rays in a plurality of different light paths, - an optical body (100), - a common light incident portion (110) for coupling light rays from the at least one light source (50) into the optical body (100), provided that the light incident portion (110) has at least one light collection element (120), and the at least one light collection element (120) is assigned to each light source (50) and is configured to couple light rays from the assigned light source (50) into the optical body (100), - a light exit portion (130) for separating light rays coupled into the optical body (100) through the common light incident portion (110) to the outside of the optical body (100) in the main direction (X) of the illumination device (10), - a shell surface (140) defining the optical body (100), provided that the shell surface (140) is configured to deflect light rays coupled into the optical body (100), and the shell surface (140) extends between the common light incident portion (110) and the light exit portion (130), an optical body (100) including - a projection lens system (200) disposed downstream of the optical body (100) along the main direction (X) for receiving light rays emitted from the light exit portion (130) of the optical body (100) and including at least one lens, provided that the projection lens system (200) is configured to project light rays forward of the illumination device (10), including wherein the projection lens system (200) combined with the at least one light source (50) and the optical body (100) is configured to generate a low beam irradiated by the projection lens system (200), wherein the optical body (100) includes a first set of optical action surfaces for guiding at least a part of the light rays coupled into the optical body (100) through the common light incident portion (110) from the common light incident portion (110) to the light exit portion (130) along a first light path (LR1), The optical working surfaces of the first set include first and second light deflection surfaces (300a, 300b) and a first light exit surface (300c), the first and second light deflection surfaces (300a, 300b) are arranged on the shell surface (140), and the first light exit surface (300c) is arranged on the light exit part (130). The light rays traveling along the first optical path (LR1) are incident on the first light deflection surface (300a) and deflected to the second light deflection surface (300b), and the light rays incident on the second light deflection surface (300b) are deflected to the first light exit surface (300c) for separation to the outside of the optical body (100). The light rays emitted by the first light exit surface (300c) contribute to the generation of the first part of the low beam. The optical body (100) includes a second set of optical working surfaces for guiding at least a part of the light rays coupled into the optical body (100) through the common light incident part (110) from the common light incident part (110) to the light exit part (130) along the second and third optical paths (LR2, LR3). The optical working surfaces of the second set include a third light deflection surface (400a) and a second light exit surface (400b), the third light deflection surface (400a) is arranged on the shell surface (140), and the second light exit surface (400b) is arranged at a position away from the first light exit surface (300c) of the light exit part (130). The light rays traveling along the second optical path (LR2) are incident on the third light deflection surface (400a) and deflected to the second light exit surface (400b) for separation to the outside of the optical body (100), and the light rays traveling along the third optical path (LR3) are directly incident on the second light exit surface (400b) from the common light incident part (110). The light rays emitted by the second light exit surface (400b) contribute to the generation of the second part of the low beam. The first part of the low beam provided by the first light exit surface (300c) and the second part of the low beam provided by the second light exit surface (400b) form a low beam, and the vertical extension of the low beam extends downward along the V - V line from at least 0° to -10° or less on the V - V line. A lighting device, characterized by the above.

2. In the lighting device according to Claim 1, the second light deflection surface (300b) and the third light deflection surface (400a) are coupled through a concave coupling surface. A lighting device, characterized by the above.

3. In the lighting device according to claim 1, the projection lens system (200) includes an optical axis (A), the first light emitting surface (300c) has a surface vector, and the surface vector is inclined with respect to the optical axis (A) of the projection lens system (200). A lighting device characterized by the above.

4. In the lighting device according to claim 3, the second light emitting surface (400b) has a surface vector, and the surface vector is inclined with respect to the optical axis (A) of the projection lens system (200). A lighting device characterized by the above.

5. In the lighting device according to claim 1, the light collection element (120) is configured as a collimator optical system. A lighting device characterized by the above.

6. In the lighting device according to claim 1, the light collection element (120) ・ a first lens (120a) having an optical axis (A1), provided that the first lens (120a) is configured to direct light incident on the first lens (120a) toward the first optical path (LR1), and ・ a second lens (120b) having an optical axis (A2), provided that the second lens (120b) is configured to direct light incident on the second lens (120b) toward the third optical path (LR3). including The first lens (120a) and the second lens (120b) are arranged adjacent to each other directly such that their optical axes (A1, A2) have an offset with respect to each other in the horizontal direction and / or the vertical direction. A lighting device characterized by the above.

7. In the lighting device according to claim 6, the optical axis (A1) of the first lens (120a) and the optical axis (A2) of the second lens (120b) of the light collection element (120) are rotated with respect to each other around an axis perpendicular to the main direction (X). A lighting device characterized by the above.

8. In the lighting device according to claim 1, the light collection element (120) is configured as a Compound Parabolic Concentrator or a non-imaging Compound Parabolic Concentrator. A lighting device characterized by the above.

9. In the lighting device according to claim 1, the first light emitting surface (300c) and the shell surface (140) intersect at a common surface cut line (150), and the common surface cut line (150) generates an asymmetric cut-off boundary for a low beam. A lighting device characterized by the above.

10. In the lighting device according to claim 9, the projection lens system (200) includes an optical axis (A) and at least one focal point (F) arranged on the optical axis (A), the common plane cut-off line (150) is arranged at the at least one focal point (F), characterized by a lighting device.

11. In the lighting device according to claim 1, the common light incident part (110) and the light emitting part (130) have an offset with respect to each other along the main direction (X), characterized by a lighting device.

12. In the lighting device according to claim 1, the lighting device (10) includes at least two light sources (50), the light sources (50) are arranged on a horizontal line substantially perpendicular to the main direction (X), characterized by a lighting device.

13. In the lighting device according to claim 1, the at least one light source (50) is an LED, characterized by a lighting device.

14. An automotive headlamp including at least one lighting device according to any one of claims 1 to 13.

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