Lamp assembly, method of manufacturing lamp assembly and motor vehicle

Abstract

The invention discloses a lamp assembly, a method for preparing the lamp assembly and a motor vehicle. The lamp assembly (100) comprises: a plurality of light sources (10); the first optical structure layer (20) is arranged in the light emitting direction of the light sources (10) and is configured to enable at least one part of light rays of each light source (10) to deflect in the extending direction (E) of the lamp assembly (100) in the direction away from the light sources (10); the second optical structure layer (30) is arranged on the side, opposite to the light source (10), of the first optical structure layer (20) and is separated from the first optical structure layer (20), and the second optical structure layer (30) is configured to receive and deflect light rays from the first optical structure layer (20); the light source (10) is arranged such that a portion of the light is emitted from a region (Z) corresponding to a portion between two adjacent light sources (10).

Description

Technical Field

[0001] The present invention relates to a lamp assembly, a method for manufacturing a lamp assembly, and a motor vehicle. Background Art

[0002] In the arrangement of a vehicle lamp assembly including a plurality of light sources, the light from the light sources is transmitted to the outside through the internal structure of the vehicle lamp assembly to achieve a lighting effect. In the existing vehicle lamp assemblies prepared by an extrusion process, in the case of restrictions on the number of light sources or requirements for light output efficiency, in some areas, the optical distribution uniformity and lighting effect cannot meet the actual requirements. Summary of the Invention

[0003] An object of the present invention is to provide a lamp assembly, a method for manufacturing a lamp assembly, and a motor vehicle. The lamp assembly can improve the optical distribution uniformity and reduce costs while maintaining the light output efficiency.

[0004] On the one hand, a lamp assembly is provided, which includes: a plurality of light sources; a first optical structure layer, which is arranged in the light-emitting direction of the light sources and is configured to deflect at least a part of the light of each light source in the extending direction of the lamp assembly in a direction away from the light sources; a second optical structure layer, which is arranged on the opposite side of the first optical structure layer with respect to the light sources and is spaced apart from the first optical structure layer, and the second optical structure layer is configured to receive the light from the first optical structure layer and deflect it so that a part of the light exits from a region corresponding to a part between two adjacent light sources.

[0005] In one embodiment, the first optical structure layer includes a plurality of lens structures, and the plurality of lens structures are arranged in one-to-one correspondence with the plurality of light sources.

[0006] In one embodiment, a plurality of collimating structures are provided on the surface of the second optical structure layer facing the light sources. The plurality of collimating structures are arranged to be adjacent to each other in a region corresponding to a part between two adjacent light sources, and are configured to collimate at least a part of the received light so as to exit substantially along the optical axis direction of the light sources, and the optical axis direction is perpendicular to the extending direction; wherein, the angle between the light collimated by the collimating structures and the optical axis direction is less than 10°.

[0007] In one embodiment, the plurality of light sources, the plurality of lens structures, and the plurality of collimating structures correspond to each other one by one and are arranged centrally with respect to each other.

[0008] In one embodiment, a corrugated structure is provided on the surface of the second optical structure layer facing the light source. The corrugated structure is continuously arranged in the extending direction and is configured to deflect and scatter at least a part of the received light.

[0009] In one embodiment, a light diffusion structure is provided on the surface of the second optical structure layer facing away from the light source. The light diffusion structure is configured to scatter the light emitted from the second optical structure layer.

[0010] In one embodiment, the first optical structure layer is prepared on the plurality of light sources by an injection molding process, such that each light source is tightly coated in each lens structure of the first optical structure layer.

[0011] In one embodiment, the first optical structure layer and the second optical structure layer are arranged parallel to each other.

[0012] In one embodiment, the first optical structure layer and the second optical structure layer are formed of a transparent material.

[0013] In one embodiment, the second optical structure layer does not contain a diffusing agent; or the second optical structure layer contains a small amount of diffusing agent, and the haze of the second optical structure layer is less than 30%.

[0014] In one embodiment, the lamp assembly further includes a support structure configured to connect and support the first optical structure layer and the second optical structure layer.

[0015] In one embodiment, the support structure includes an intermediate support portion and an outer support portion; the intermediate support portion is made of a transparent material, and the outer support portion is made of an opaque material;

[0016] The intermediate support portion is disposed between the first optical structure layer and the second optical structure layer; the inner surfaces on both sides of the outer support portion serve as reflecting surfaces to reflect the light emitted by the light source toward the light-emitting surface.

[0017] On the other hand, a method for manufacturing a lamp assembly is provided, the method including: disposing a plurality of light sources on a printed circuit board to form a lamp board; performing an injection molding process to directly injection mold a first optical structure layer on the lamp board; performing a first extrusion process to extrude a main body of the second optical structure layer, and respectively roll-pressing different optical structures on opposite surfaces of the main body to obtain the second optical structure layer; performing a second extrusion process to perform secondary extrusion using the lamp board, the first optical structure layer, and the second optical structure layer, such that a support structure is formed to connect with each other to constitute the lamp assembly.

[0018] In one embodiment, the injection molding process further includes: placing the lamp board into a mold of the first optical structure layer for injection molding, where the mold is provided with a plurality of lens structures corresponding to the plurality of light sources one by one; and the first extrusion process further includes: using a first rolling device to roll one of the opposite surfaces of the main body, where the surface of the first rolling device is a grid curved surface to form a light diffusion structure; using a second rolling device to roll the other surface of the main body, where the surface of the second rolling device is a collimating curved surface or a corrugated curved surface to form a collimating structure or a corrugated structure.

[0019] In another aspect, a motor vehicle is provided, which includes a lamp assembly according to an embodiment of the present invention. Description of the Drawings

[0020] Figure 1 A side view showing a first embodiment of a lamp assembly according to an embodiment of the present invention.

[0021] Figure 2 A side view showing a second embodiment of a lamp assembly according to an embodiment of the present invention.

[0022] Figure 3 A perspective view showing a first optical structure layer according to a first embodiment and a second embodiment of the present invention.

[0023] Figure 4 A perspective view showing a second optical structure layer with a collimating structure according to a first embodiment of the present invention.

[0024] Figure 5 An optical path diagram showing a lamp assembly with a collimating structure according to a first embodiment of the present invention.

[0025] Figure 6 A perspective view showing a second optical structure layer with a corrugated structure according to a second embodiment of the present invention.

[0026] Figure 7 Shown from another angle of a second embodiment of the present invention Figure 6 A perspective view of the second optical structure layer shown.

[0027] Figure 8 An optical path diagram showing a second optical structure layer with a corrugated structure according to a second embodiment of the present invention.

[0028] Figure 9 A perspective view showing a lamp assembly according to an embodiment of the present invention.

[0029] Figure 10 A perspective view showing a lamp assembly according to another embodiment of the present invention. Detailed Description of the Invention

[0030] The technical solution of the present invention will be further specifically described below through embodiments in combination with the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention and should not be construed as a limitation on the present invention.

[0031] In addition, in the following detailed description, for the sake of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments can also be implemented without these specific details.

[0032] Figure 1 A side view of a first embodiment of a lamp assembly 100 according to an embodiment of the present invention is shown. Figure 2 A side view of a second embodiment of a lamp assembly 100 according to an embodiment of the present invention is shown.

[0033] As Figure 1 and Figure 2 shown, the lamp assembly 100 according to an embodiment of the present invention may include a plurality of light sources 10. As an example, when the lamp assembly 100 is placed in a straight line, the plurality of light sources 10 may be arranged equidistantly from each other on a printed circuit board 50 and have the same light-emitting direction to jointly emit light to achieve lighting. As an example, the printed circuit board 50 may be a flexible printed circuit board, and the entire lamp assembly 100 may be flexible and used as a flexible light strip so as to achieve various lighting shapes by bending the lamp assembly 100. However, the embodiments of the present invention are not limited thereto.

[0034] The lamp assembly 100 may further include a first optical structure layer 20. As Figure 1 and Figure 2 shown, the first optical structure layer 20 may be arranged in the light-emitting direction of the plurality of light sources 10 and located above the plurality of light sources 10 such that the light emitted from each light source 10 needs to pass through the first optical structure layer 20 and travel outward.

[0035] Figure 3 A perspective view of the first optical structure layer 20 according to the first and second embodiments of the present invention is shown. As Figures 1 to 3 shown, in combination with Figure 5, the first optical structure layer 20 may be provided with a plurality of lens structures 210. According to an embodiment of the present invention, the plurality of light sources 10 and the plurality of lens structures 210 may be arranged in a one-to-one correspondence with each other, such that the light rays emitted from each light source 10 need to pass through their respective lens structures 210 and travel outward. According to an embodiment of the present invention, the lens structure 210 may be configured to deflect at least a portion of the light rays of their respective light sources 10 in a direction away from the corresponding light source 10 in the extending direction E of the lamp assembly 100. For example, at least a portion of the light rays located in the central region of the light source 10 originally travel along the direction of the optical axis O of the light source 10 substantially. When passing through the lens structure 210, due to the deflection effect of the lens structure 210, they are changed to travel in directions away from the optical axis O from both sides respectively. In this way, a portion of the light rays in the central region of the light source 10 can be distributed to other regions, such as the portion between two adjacent light sources 10, thereby weakening the light intensity in the central region and increasing the light intensity in the vicinity of each light source 10, thus improving the optical distribution uniformity of the lamp assembly 100 and enhancing the lighting effect.

[0036] The lamp assembly 100 may further include a second optical structure layer 30. As Figure 1 and Figure 2 shown, the second optical structure layer 30 may be disposed on the opposite side of the first optical structure layer 20 from the light source 10 and spaced apart from the first optical structure layer 20. According to an embodiment of the present invention, the light rays passing through the first optical structure layer 20 will travel to the second optical structure layer 30 and need to pass through the second optical structure layer 30 to exit outward. Therefore, the second optical structure layer 30 is configured to receive the light rays from the first optical structure layer 20. In addition, as Figure 1 and Figure 2 shown, a variety of optical structures (e.g., 310, 320, 330) may be provided on the second optical structure layer 30. These optical structures may further deflect the light rays from the first optical structure layer 20 (e.g., perform collimation and / or scattering functions), thereby guiding a portion of the light rays to exit from a region corresponding to the portion between two adjacent light sources 10 (e.g., region Z). Region Z may be a space corresponding to the space between two adjacent light sources 10 along the thickness direction of the lamp assembly 100, and the thickness direction of the lamp assembly 100 is perpendicular to the length direction of the lamp assembly 100. In Figure 1 , the thickness direction of the lamp assembly 100 is also the optical axis direction O of the light source, or referred to as the main emission direction, and the length direction is also the extending direction E of the lamp assembly 100.

[0037] In this way, by providing the first optical structure layer 20 and the second optical structure layer 30 in the lamp assembly 100, and by means of the first deflection effect provided by the first optical structure layer 20 and the second deflection effect provided by the second optical structure layer 30, the traveling route of at least a part of the light rays of the light source 10 is cooperatively adjusted so that the light rays emitted from the area corresponding to the central area of the light source are weakened, while the light rays emitted from the area corresponding to the part between two adjacent light sources 10 are increased. Thus, through the cooperative deflection effect of the first optical structure layer 20 and the second optical structure layer 30, it is ensured that a part of the light rays of the light source are emitted from the area Z corresponding to the part between two adjacent light sources 10, and the amount of light rays at each part is uniform, thereby improving the optical distribution uniformity to provide a good lighting effect and visual effect.

[0038] In addition, by providing the first optical structure layer 20 and the second optical structure layer 30 to improve the uniformity, it is not necessary to densely arrange a plurality of light sources 10, thereby saving costs and reducing the influence of the heat of the light sources on the surrounding structures to increase the service life of the lamp assembly 100. In addition, it is also possible to avoid providing additional diffusion materials at the light exit of the lamp assembly 100, thereby reducing the influence on the light exit efficiency and ensuring the lighting effect.

[0039] In one embodiment, as Figure 1 shown, a plurality of collimating structures 310 are provided on the surface of the second optical structure layer 30 facing the light source 10. Figure 4 Fig. shows a perspective view of the second optical structure layer 30 with the collimating structures 310 according to the first embodiment of the present invention. Figure 5 Fig. shows an optical path diagram of the lamp assembly 100 with the collimating structures 310 according to the first embodiment of the present invention.

[0040] As Figure 1 , Figure 4 and Figure 5 shown, a plurality of collimating structures 310 are arranged in one-to-one correspondence with a plurality of light sources 10 and a plurality of lens structures 210, so that each collimating structure 310 can receive the light rays emitted from the corresponding light source 10 and passing through the corresponding lens structure 210, and collimate the received light rays. In this case, a plurality of collimating structures 310 can be joined to each other at the corresponding area Z between two adjacent light sources 10, thereby forming a continuous collimating surface on the second optical structure layer 30.

[0041] In this embodiment, as an example, as Figure 5As shown, the lens structure 210 can be configured to deflect the light rays of the light source 10 within the coverage of the collimating structure 310, such that the light rays deflected by the lens structure 210 can be substantially received by the corresponding collimating structure 310 for collimation. Subsequently, the collimating structure 310 can collimate the received light rays to travel substantially along the optical axis direction O, so that the light rays can exit from the second optical structure layer 30 substantially along the optical axis direction O. Here, it should be noted that when the angle between the light rays collimated by the collimating structure 310 and the optical axis direction O is less than 10°, it can be considered that the collimating structure 310 collimates the received light rays to travel substantially along the optical axis direction O.

[0042] In this way, first, the lens structure 210 deflects the light rays to distribute a part of the light rays to the adjacent area of the collimating structure 310 (i.e., area Z). Then, the collimating structure 310 collimates the distributed light rays, so that light rays can exit at the corresponding area Z between the two light sources, thereby improving the optical distribution uniformity. In addition, the light rays emitted from area Z can be substantially along the optical axis direction O, so that the light intensity in the optical axis direction O can meet the regulatory requirements.

[0043] Preferably, a plurality of collimating structures 310, a plurality of light sources 10, and a plurality of lens structures 210 can be arranged centered with respect to each other. Thus, the collimating structure 310 can be a symmetric structure with respect to the center of the light source 10. In this case, the light rays of the light source 10 (especially the light rays in the central part of the light source 10) can be symmetrically deflected to both sides, and the collimation effects of the collimating structures 310 are also symmetric with each other. Therefore, this is more conducive to the uniform distribution of light rays and the lighting effect.

[0044] In the second embodiment, as Figure 2 shown, a corrugated structure 320 is provided on the surface of the second optical structure layer 30 facing the light source 10. Figure 6 FIG. shows a perspective view of the second optical structure layer 30 with the corrugated structure 320 according to the second embodiment of the present invention. Figure 7 FIG. shows the second optical structure layer 30 according to the second embodiment of the present invention at another angle Figure 6 shown in a perspective view. Figure 8 FIG. shows an optical path diagram of the second optical structure layer 30 with the corrugated structure 320 according to the second embodiment of the present invention.

[0045] As Figure 2 and Figures 6 - 8As shown, the corrugated structure 320 can be continuously arranged in the extending direction E of the lamp assembly 100. The size of the corrugated structure 320 can be set very small. For example, the length of each corrugated structure 320 in the extending direction E is less than or equal to 2 mm, or even less than or equal to 1 mm. Unlike the collimating structure 310 described above that corresponds to each light source one by one, the corrugated structure 320 deflects the light rays from all the light sources 10 in a continuous structure manner. Thus, in this embodiment, since there is no need to consider the alignment problem with the light sources, it is easier to prepare and form the corrugated structure 320, and it is easier to carry out mass production.

[0046] As an example, as Figure 7 shown, the corrugated structure 320 can be formed by a plurality of sub-structures 320D each in a semi-cylindrical shape. These sub-structures 320D can be arranged along the extending direction E of the lamp assembly 100 and extend in a direction transverse to the extending direction E.

[0047] In this embodiment, the corrugated structure 320 is configured to collimate and scatter at least a part of the received light rays. Due to the structural characteristics of the corrugated structure 320, the corrugated structure 320 does not have the same degree of collimation effect as the collimating structure 310. That is, the corrugated structure 320 can only deflect the light rays towards the optical axis direction O to a certain extent, but may not be able to make the light rays travel substantially parallel to the optical axis direction O. However, compared with the prior art, the corrugated structure 320 can collimate the received light rays at a certain angle, and the direction of the collimated light rays is closer to the optical axis direction. Therefore, in this case, the deflection performance of the lens structure 210 in this embodiment needs to be changed accordingly. That is, compared with the embodiment of the collimating structure 310 described above, when using the corrugated structure 320, the lens structure 210 needs to deflect the light rays at a larger angle so that more light rays are deflected to the region corresponding to the part between two adjacent light sources 10 of the second optical structure layer 30. At the same time, by virtue of the scattering performance and the weak collimation performance of the corrugated structure 320, sufficient light rays can be evenly emitted from the corresponding region Z between two adjacent light sources 10. Thus, the optical distribution uniformity is improved.

[0048] In this way, first, the lens structure 210 deflects the light rays to the region corresponding to the part between two adjacent light sources 10, and then, in cooperation with the deflection effect (i.e., the weak collimation effect) and the scattering effect of the corrugated structure 320, it is ensured that the light rays are emitted from the corresponding region Z between two adjacent light sources 10, thereby improving the optical distribution uniformity.

[0049] In one embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, a light diffusion structure 330 is provided on the surface of the second optical structure layer 30 facing away from the light source 10. The light diffusion structure 330 can be configured to scatter the light emitted from the second optical structure layer 30. As an example, the light diffusion structure 330 can be provided on the entire exit surface of the second optical structure layer 30, such that when light rays exit from the second optical structure layer 30, they will be scattered in all directions due to the action of the light diffusion structure 330. Thereby, the light rays can be further evenly distributed in all directions, thus providing visual light quantity uniformity, meeting regulatory requirements, and improving the lighting effect.

[0050] As an example, as Figure 4 and Figure 6 shown, the light diffusion structure 330 can be formed by a plurality of sub-structures 330D each in a strip shape, and the cross-section of each sub-structure 330D along the extending direction E is in an arc shape. These sub-structures 330D can be arranged in an array form.

[0051] In one embodiment, as Figures 1 to 2 shown, the first optical structure layer 20 and the second optical structure layer 30 can be arranged parallel to each other. In this way, the symmetry of the light rays deflected to both sides of the optical axis direction O can be provided, thereby the light brightness uniformity of the regions Z on both sides of each light source can be provided to ensure uniform distribution of brightness at each region of the exit surface.

[0052] In one embodiment, the first optical structure layer 20 and the second optical structure layer 30 can be formed of a transparent material. As an example, the transparent material can be a transparent silicone material. Since the second optical structure layer 30 is formed of a transparent material and does not contain a diffusing agent or contains a very small amount of diffusing agent, the haze of the second optical structure layer 30 is less than 30%, thereby improving the light extraction efficiency and meeting relevant regulatory requirements. However, the embodiments of the present invention are not limited thereto, and other suitable transparent materials can be selected as needed. In this way, by using a transparent material to form a plurality of optical structures to deflect light rays, good optical distribution uniformity can be obtained while minimizing the impact on optical efficiency, thereby being able to save economic and energy costs and ensure the lighting effect.

[0053] In one embodiment, the lamp assembly 100 can further include a support structure 40. The support structure 40 can be configured to connect and support the first optical structure layer 20 and the second optical structure layer 30.

[0054] Figure 9 A perspective view of the lamp assembly 100 according to an embodiment of the present invention is shown. As Figure 1 , Figure 2 and Figure 9As shown, the support structure 40 includes an intermediate support portion 41 and an outer support portion 42. The intermediate support portion 41 can be disposed between the first optical structure layer 20 and the second optical structure layer 30, so as to support the entire lamp assembly 100, providing and ensuring support stability and avoiding deformation. The intermediate support portion 41 can be made of a transparent silicone material, and the materials of the intermediate support portion 41 and the second optical structure layer 30 can be the same. The outer support portion 42 can be arranged to surround the light source 10, the printed circuit board 50, the first optical structure layer 20, and the second optical structure layer 30 from the outside (e.g., from both sides and the bottom), so as to support these components and connect these components to form an integral whole as the lamp assembly 100. The outer support portion 42 can be made of an opaque material. For example, the outer support portion 42 can be made of an opaque material that is white and has a relatively high reflectivity. The inner surfaces on the left and right sides in the illustration of the outer support portion 42 serve as reflecting surfaces, reflecting the light emitted by the light source 10 toward the light-emitting surface, thereby further improving the light-emitting efficiency. In this way, by providing the support structure 40, it is possible to arrange a variety of optical structures in the light-emitting direction of the light source, thereby changing the traveling path of the light to improve uniformity.

[0055] Figure 10 A perspective view of a lamp assembly 100 according to another embodiment of the present invention is shown. As Figure 10 shown, when multiple rows of light sources are provided on the printed circuit board 50, corresponding first optical structure layers 20 and second optical structure layers 30 can be provided for each row of light sources respectively, so as to form sub-lamp assemblies capable of providing improved optical distribution uniformity. Thereafter, through the support structure 40, the multiple sub-lamp assemblies of the multiple rows of light sources can be combined together to form the lamp assembly 100. As an example, the first optical structure layer 20 and the second optical structure layer 30 provided for each row of light sources can be designed separately. That is, the deflection performance of the optical structure layers between the multiple rows of light sources can be the same or different, thereby providing the same or different optical distribution situations. Thus, design flexibility is provided, and it is possible to incorporate multiple functions into the same lamp assembly 100.

[0056] The present invention also provides a method for manufacturing a lamp assembly 100. The method may include: disposing a plurality of light sources 10 on a printed circuit board 50 to form a lamp board. For example, the printed circuit board 50 may be intercepted according to a preset length, and a preset number of the plurality of light sources 10 may be placed on the printed circuit board 50. Perform an injection molding process to directly injection mold a first optical structure layer 20 on the lamp board. Perform a first extrusion process to extrude a main body of a second optical structure layer 30, and respectively roll press different optical structures on opposite surfaces of the main body to obtain the second optical structure layer 30. Perform a second extrusion process, and perform secondary extrusion using the lamp board, the first optical structure layer 20, and the second optical structure layer 30, so that a support structure 40 is formed to be connected to each other to form the lamp assembly 100.

[0057] As an example, the injection molding process may include placing a lamp board including the printed circuit board 50 and the plurality of light sources 10 into a mold of the first optical structure layer 20 for injection molding. For example, a mold for forming the first optical structure layer 20 may be prepared in advance, so that the mold may include lens curved surfaces for forming a plurality of lens structures 210 corresponding to the plurality of light sources 10 one by one. Then, the lamp board is placed into the mold of the first optical structure layer 20, and a transparent material (such as a silicone material) is injected into the mold. Through the injection molding process, the injected transparent material will be cured and formed according to the formation of the mold, thereby correspondingly forming a plurality of lens structures 20.

[0058] In this way, by directly forming the lens structure 20 on the light source 10 by an injection molding process, each light source 10 can be tightly wrapped in the lens structure 20, thereby increasing the connection stability and tight fit between components, and ensuring the light deflection effect.

[0059] As an example, the first extrusion process may further include using a first rolling press device to roll press one of the opposite surfaces of the main body of the second optical structure layer 30. The surface of the first rolling press device is designed to have a grid curved surface, so as to form a light diffusion structure 330 on the rolled surface. Then, use a second rolling press device to roll press the other surface of the main body. The surface of the second rolling press device is designed to have a collimating curved surface or a corrugated curved surface, so as to form a collimating structure 310 or a corrugated structure 320 on the rolled surface. Optionally, the rolling press processes of the first rolling press device and the second rolling press device may be performed simultaneously.

[0060] The present invention also provides a motor vehicle, which may include the lamp assembly 100 according to the present invention.

[0061] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation to the present invention.

[0062] While some embodiments of the general inventive concept have been shown and described, those of ordinary skill in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, and the scope of the invention is defined by the claims and their equivalents.

Claims

1. A lamp assembly (100), characterized in that, The lamp assembly (100) includes: a plurality of light sources (10); a first optical structure layer (20), which is arranged in the light-emitting direction of the light sources (10) and is configured to deflect at least a part of the light rays of each light source (10) in a direction away from the light source (10) along the extension direction (E) of the lamp assembly (100); a second optical structure layer (30), which is arranged on the opposite side of the first optical structure layer (20) from the light sources (10) and is spaced apart from the first optical structure layer (20), and the second optical structure layer (30) is configured to receive the light rays from the first optical structure layer (20) and deflect them so that a part of the light rays exits from a region (Z) corresponding to a part between two adjacent light sources (10).

2. The lamp assembly (100) according to claim 1, characterized in that, The first optical structure layer (20) includes a plurality of lens structures (210), and the plurality of lens structures (210) are arranged in one-to-one correspondence with the plurality of light sources (10).

3. The lamp assembly (100) according to claim 2, characterized in that, On the surface of the second optical structure layer (30) facing the light sources (10), a plurality of collimating structures (310) are provided. The plurality of collimating structures (310) are arranged to be in contact with each other at a region (Z) corresponding to a part between two adjacent light sources (10), and are configured to collimate at least a part of the received light rays so as to exit substantially along the optical axis direction (O) of the light sources (10), and the optical axis direction (O) is perpendicular to the extension direction (E); wherein, the angle between the light rays collimated by the collimating structures (310) and the optical axis direction (O) is less than 10°.

4. The lamp assembly (100) according to claim 3, characterized in that, The plurality of light sources (10), the plurality of lens structures (210), and the plurality of collimating structures (310) are in one-to-one correspondence with each other and are arranged centered with respect to each other.

5. The lamp assembly (100) according to claim 2, characterized in that, On the surface of the second optical structure layer (30) facing the light sources (10), a corrugated structure (320) is provided. The corrugated structure (320) is continuously arranged in the extension direction (E) and is configured to deflect and scatter at least a part of the received light rays.

6. The lamp assembly (100) according to any one of claims 1 - 5, characterized in that, On the surface of the second optical structure layer (30) facing away from the light sources (10), a light diffusion structure (330) is provided, and the light diffusion structure (330) is configured to scatter the light exiting from the second optical structure layer (30).

7. The lamp assembly (100) according to any one of claims 2 - 5, characterized in that, The first optical structure layer (20) is prepared on the plurality of light sources (10) by an injection molding process, so that each light source (10) is tightly wrapped in each lens structure (210) of the first optical structure layer (20).

8. The lamp assembly (100) according to any one of claims 1 - 5, characterized in that, The first optical structure layer (20) and the second optical structure layer (30) are arranged parallel to each other.

9. The lamp assembly (100) according to any one of claims 1 - 5, characterized in that, The first optical structure layer (20) and the second optical structure layer (30) are formed of a transparent material.

10. The lamp assembly (100) according to claim 9, characterized in that, The second optical structure layer (30) does not contain a diffusing agent; or The second optical structure layer (30) contains a small amount of diffusing agent, and the haze of the second optical structure layer (30) is less than 30%.

11. The lamp assembly (100) according to any one of claims 1 - 5, characterized in that, The lamp assembly (100) further includes a support structure (40), which is configured to connect and support the first optical structure layer (20) and the second optical structure layer (30).

12. The lamp assembly (100) according to claim 11, characterized in that, The support structure (40) includes an intermediate support portion (41) and an outer support portion (42); The intermediate support portion (41) is made of a transparent material, and the outer support portion (42) is made of an opaque material; The intermediate support portion (41) is disposed between the first optical structure layer (20) and the second optical structure layer (30); The inner surfaces on both sides of the outer support portion (42) serve as reflecting surfaces to reflect the light emitted by the light source (10) toward the light-emitting surface.

13. A method for manufacturing a lamp assembly (100), characterized in that, The method includes: Arranging a plurality of light sources (10) on a printed circuit board (50) to form a lamp board; Performing an injection molding process to directly injection mold the first optical structure layer (20) on the lamp board; Performing a first extrusion process to extrude the main body of the second optical structure layer, and respectively roll-pressing different optical structures on the opposite surfaces of the main body to obtain the second optical structure layer; Performing a second extrusion process, and performing secondary extrusion using the lamp board, the first optical structure layer, and the second optical structure layer, so that a support structure is formed to be connected to each other to form the lamp assembly (100).

14. According to the method of claim 13, wherein, The injection molding process further includes: placing the lamp board into a mold of the first optical structure layer for injection molding, and the mold is provided with a plurality of lens structures corresponding to the plurality of light sources one by one; and The first extrusion process further includes: Roll-pressing one of the opposite surfaces of the main body using a first roll-pressing device, and the surface of the first roll-pressing device is a grid curved surface to form a light diffusion structure; Roll-pressing the other surface of the main body using a second roll-pressing device, and the surface of the second roll-pressing device is a collimating curved surface or a corrugated curved surface to form a collimating structure or a corrugated structure.

15. A motor vehicle, wherein, Including the lamp assembly (100) according to any one of claims 1 to 12.

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