Automobile projection tail lamp and automobile

Abstract

The utility model relates to the technical field of automobile lamp, and puts forward an automobile projection tail light and automobile, and the automobile projection tail light includes the lamp shell and the light source, optical distributor, pattern forming unit and projection lens arranged in it. Optical distributor receives and distributes the light beam that light source sends out, forms the first light path and second light path that are independent of each other. The first light path is used to form the basic visual signal light type of automobile tail light, and the pattern forming unit and projection lens are sequentially arranged in the second light path, the pattern forming unit modulates the light beam to bear the preset pattern, and then the pattern is projected to the automobile tail door trim through the projection lens. The utility model integrates two functions of basic lighting and individualized projection in single lamp shell through sharing light source and optical distributor, replaces the original two sets of independent optical systems, effectively reduces the cost and volume, and improves the function synergy.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to an automotive projection taillight and an automobile. Background Technology

[0002] With the development of intelligent and personalized vehicles, the function of taillights is no longer limited to basic safety functions such as braking and position indication as required by regulations. Consumers expect taillights to carry more interactive and brand display value, with the projection of specific patterns or text onto the vehicle body (such as the tailgate trim panel) becoming an emerging demand. This integrated design can significantly enhance the vehicle's technological feel and brand recognition.

[0003] Currently, the mainstream solution in the industry to achieve similar projection functionality is to add a separate projection module outside the taillight assembly. This module has its own dedicated light source, optical lenses, and control system, independent of the original taillight lighting system. This physically separate architecture of the "functional light" and the "projection light" brings the following inherent drawbacks: First, the cost is high. A standalone projection module means that a separate light source (such as an LED), a complex light guiding and imaging mechanism, and a corresponding driving circuit are required, which directly leads to a significant increase in material and manufacturing costs.

[0004] Secondly, the layout is limited. The rear space of a car, especially the tailgate area, is extremely compact. Adding a separate projection module poses a serious challenge to the installation space and structural design of the lights, often requiring the sacrifice of the positions of other components or changes to the body structure, making it impractical and encroaching on valuable design space.

[0005] Finally, the functionality is limited and lacks synergy. The independent projection module only serves the projection function and is completely separated from the main lighting functions of the taillights (such as position lights and brake lights) in terms of optical path and energy utilization. This fails to achieve the reuse of light source and light energy, resulting in a waste of resources. Utility Model Content

[0006] In view of this, this utility model proposes a car projection taillight and a car, aiming to solve the problem that the basic safety function and projection display function of the taillight cannot be efficiently integrated into one in the prior art.

[0007] The technical solution of this utility model is implemented as follows: In a first aspect, the present invention provides an automotive projection taillight, comprising a lamp housing and at least one light source disposed within the lamp housing; It also includes an optical distributor, a pattern forming unit, and a projection lens disposed within the lamp housing; The optical distributor is configured to receive and distribute the light beam emitted by the light source to form a first optical path and a second optical path that are independent of each other. The first optical path is used to form the basic visual signal light pattern of the car taillight; The pattern forming unit and the projection lens are sequentially arranged in the second optical path. The pattern forming unit is configured to modulate the light beam passing through the second optical path to carry a preset pattern, and project the preset pattern onto the tailgate trim panel of the car via the projection lens.

[0008] Based on the above technical solution, preferably, the optical distributor is a light guide, which includes an input section opposite to the light source, a first output section for outputting the first light path, and a second output section for outputting the second light path.

[0009] Based on the above technical solution, preferably, the light source is disposed at the top of the light guide; a first reflective surface and a second reflective surface are formed inside the light guide; the first reflective surface is located downstream of the light path of the light input part and is used to guide the light beam to the first light output part and the second reflective surface; the second reflective surface is located downstream of the light path of the first reflective surface and below the first light output part, and is used to guide the light beam to the second light output part.

[0010] Based on the above technical solution, preferably, the bottom edge of the first reflective surface and the bottom edge of the second reflective surface are located on the same horizontal plane; the top edge of the first reflective surface and the top edge of the first light-emitting part are located on the same horizontal plane; and the light-incident area of ​​the second reflective surface is not greater than the light-emitting area of ​​the first light-emitting part.

[0011] Based on the above technical solution, preferably, the light source is disposed on the front side of the light guide; a reflective surface is formed inside the light guide and is located below the first light emitting part, the light incident part and the first light emitting part are located on opposite sides of the reflective surface, the reflective surface is configured to reflect the light beam incident on it to the second light emitting part, and the reflective area of ​​the reflective surface is not greater than the light emitting area of ​​the first light emitting part.

[0012] Based on the above technical solution, preferably, the surfaces of the first light-emitting part and / or the second light-emitting part are formed with optical patterns for collimating the emitted light beam.

[0013] Based on the above technical solution, preferably, the pattern forming unit is a film.

[0014] Based on the above technical solution, preferably, the light guide is provided with a light-concentrating surface in the light-incident part to converge the light beam emitted by the light source.

[0015] Based on the above technical solution, preferably, the surface of the car tailgate trim panel is a light-scattering structure surface.

[0016] Secondly, this utility model discloses an automobile, including the automobile projection taillight described in the first aspect.

[0017] The present invention has the following advantages over the prior art: (1) This utility model integrates an optical distributor within a common lamp housing, enabling a single light source to simultaneously serve both basic safety lighting and personalized projection functions. This solution eliminates the complex architecture of existing technologies that require two independent light sources and optical systems, fundamentally solving the problems of high cost, large size, and poor functional synergy caused by discrete solutions, and providing a highly integrated, compact, and cost-optimized automotive projection taillight solution.

[0018] (2) By placing the light source at the top of the light guide and utilizing the first and second reflective surfaces arranged sequentially inside, a compact vertical light path distribution system is constructed. This design achieves two reflections and directional distribution of the light beam, enabling efficient spatial separation of the basic lighting light path and the projection light path, and realizing dual-function integration within a limited space.

[0019] (3) The automobile disclosed in this utility model adopts a projection taillight. When the vehicle is running, the projection taillight performs dual functions in one integrated manner. Its basic visual signal light pattern normally plays the role of legal safety prompts such as position lights and brake lights to ensure driving safety. At the same time, its projection function can display preset personalized patterns on the tailgate trim panel, thereby adding a unique brand recognition and interactive experience to the whole vehicle. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a plan view of a structural configuration of an automotive projection taillight disclosed in an embodiment of the present utility model; Figure 2 This is a plan view of another structural configuration of the automotive projection taillight disclosed in this utility model embodiment; Figure label: 1. Lamp housing; 2. Light source; 3. Optical distributor; G1. First light path; G2. Second light path; 4. Pattern forming unit; 5. Projection lens; 6. Car tailgate trim panel; 31. Light entrance section; 32. First light exit section; 33. Second light exit section; 34. First reflective surface; 35. Second reflective surface; 36. Third reflective surface; W. Optical pattern; 310. Concentrating surface. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0029] like Figure 1 As shown, combined with Figure 2 The first embodiment of this utility model discloses an automotive projection taillight, including a lamp housing 1, a light source 2, an optical distributor 3, a pattern forming unit 4, and a projection lens 5.

[0030] The lamp housing 1 serves as the structural carrier of the entire taillight assembly, forming a sealed enclosure. This enclosure is used to install and protect all internal optical components of the taillight, protecting them from external environmental factors such as dust and moisture, and meeting automotive-grade sealing and safety requirements.

[0031] At least one light source 2 is fixedly disposed inside the lamp housing 1. The light source 2 is preferably an LED light source, which emits a beam of light with brightness and chromaticity that meets vehicle regulations when powered on. This beam of light serves as both the light energy source for forming the basic visual signal light pattern and as the light source 2 for projection function, thus realizing the multiplexing of a single light source 2.

[0032] The optical distributor 3 is also located inside the lamp housing 1, in front of the light path of the light source 2. This optical distributor 3 is the core component of this invention, its function being to intelligently split and guide the light beam from a single light source 2 to two different optical paths. Specifically, after receiving the light beam emitted by the light source 2, the optical distributor 3 distributes it to form a first optical path G1 and a second optical path G2 that are spatially independent. This distribution is not a simple beam splitting, but is achieved through its precise internal optical structure design.

[0033] The first optical path G1, split by the optical distributor 3, is directly used to form the basic visual signal light patterns required for automotive taillights, such as position lights, brake lights, or turn signals. This portion of the light is directed directly to the rear of the vehicle to ensure that drivers of following vehicles can clearly identify the vehicle's driving status, meeting the requirements of mandatory safety regulations.

[0034] The pattern forming unit 4 and the projection lens 5 are sequentially arranged in the second optical path G2, which is split off by the optical distributor 3. The pattern forming unit 4, for example, is a film plate on which a preset pattern or text is etched or printed. When the light beam in the second optical path G2 passes through the pattern forming unit 4, the light beam is modulated, thereby carrying the corresponding pattern information. The projection lens 5 is located downstream of the optical path of the pattern forming unit 4, and its function is similar to that of an imaging lens, focusing and imaging the light beam carrying the pattern information.

[0035] The beam of light modulated by the projection lens 5 is finally precisely projected onto the inner surface of the tailgate trim panel 6. By rationally designing the relative positions and optical parameters between the optical distributor 3, the pattern forming unit 4, and the projection lens 5, a clear and bright preset pattern can be formed on the tailgate trim panel.

[0036] This embodiment of the invention integrates an optical distributor 3 within a common lamp housing 1, enabling a single light source 2 to simultaneously serve both basic safety lighting and personalized projection functions. This solution eliminates the complex architecture of existing technologies that require two independent light sources 2 and optical systems, fundamentally solving the problems of high cost, large size, and poor functional synergy associated with discrete solutions. It provides a highly integrated, compact, and cost-optimized automotive projection taillight solution.

[0037] In some embodiments, the optical distributor 3 is a light guide made of a transparent optical material (such as PMMA or PC), whose core function is to precisely guide light through internal total internal reflection and specific optical surfaces.

[0038] As one specific implementation, the light guide is a one-piece molded thick-walled automotive component.

[0039] In another embodiment, the optical distributor may be a beam splitter assembly, including a beam splitter for splitting the light beam emitted from the light source into a transmitted beam and a reflected beam in a certain proportion, forming the first optical path and the second optical path, respectively. In another embodiment, the optical distributor may also be a branched optical fiber, with its input end receiving the light beam from the light source and its two output branches outputting the first optical path and the second optical path, respectively.

[0040] The light guide is provided with a light entrance portion 31, which is directly opposite the light source 2 in spatial position. This alignment arrangement ensures that most of the light beam emitted by the light source 2 can be efficiently captured and coupled into the interior of the light guide, laying the foundation for subsequent optical path distribution and reducing the loss of light energy in the initial stage of transmission.

[0041] The light guide also has a first light-emitting section 32, which is the direct outlet for forming the basic visual signal light pattern. The light beam guided and regulated inside the light guide is finally emitted from the first light-emitting section 32, and its light pattern (such as brightness, uniformity, and angle) meets regulatory requirements, directly serving the safety warning function of vehicle position lights or brake lights.

[0042] In addition, the light guide is also designed with a second light emitting section 33, which is independent of the first light emitting section 32 and is a dedicated light emitting channel for projection function. The light beam emitted from the second light emitting section 33 is guided in the optical path where the pattern forming unit 4 and the projection lens 5 are located, thereby providing the required light energy for the projection system.

[0043] By embodying the optical distributor 3 as a light guide with an input section 31, a first light output section 32, and a second light output section 33, a compact and efficient light transmission solution is provided. This light guide structure achieves the separation and directional guidance of the light path in physical space, providing core hardware support for the efficient integration of basic lighting and projection functions within the same lamp housing 1.

[0044] As some implementation methods, see the appendix. Figure 1 As shown, the light source 2 is positioned at the top of the light guide. Light enters from above the light guide, laying the foundation for subsequent reflection path design.

[0045] The light guide has a first reflective surface 34 formed inside, located downstream of the light path of the light-incident section 31. This reflective surface is the first critical optical interface encountered by the light after it leaves the light-incident section 31. The first reflective surface 34 is used to guide the incident light beam toward the first light-emitting section 32 in a square shape. The light guide also has a second reflective surface 35 formed inside, located downstream of the light path of the first reflective surface 34 and spatially below the first light-emitting section 32. After the incident light beam is reflected by the first reflective surface 34, its propagation direction changes. Part of the beam is guided to the first light-emitting section 32, while another part is guided to the second reflective surface 35. This second part is reflected again by the second reflective surface 35, ultimately changing its propagation direction and being guided to the second light-emitting section 33, which is dedicated to projection. This layered optical path design effectively utilizes the longitudinal space of the light guide.

[0046] By placing the light source 2 at the top of the light guide and utilizing the first reflective surface 34 and the second reflective surface 35 arranged sequentially inside, a compact vertical light path distribution system is constructed. This design achieves double reflection and directional distribution of the light beam, enabling efficient spatial separation of the basic lighting light path and the projection light path, providing a concrete structural solution for achieving dual-function integration within a limited space.

[0047] In some embodiments, the bottom edge of the first reflective surface 34 and the bottom edge of the second reflective surface 35 are located on the same horizontal plane; this structural design enables the two reflective surfaces to be flush at the bottom, forming a continuous optical guiding interface, which helps the light beam to transition smoothly from the first reflective surface 34 to the second reflective surface 35 and reduces the dissipation or loss of light energy in this connecting area.

[0048] The top edge of the first reflective surface 34 and the top edge of the first light-emitting part 32 are located on the same horizontal plane. This geometric alignment means that the effective working area of ​​the first reflective surface 34 covers the entire height of the first light-emitting part 32 in the vertical direction, ensuring that the light beam guided to the first light-emitting part 32 can be fully and completely utilized, thereby ensuring that the basic signal light pattern has sufficient brightness and uniformity.

[0049] The light-incident area of ​​the second reflective surface 35 is no greater than the light-emitting area of ​​the first light-emitting part 32. This area ratio constrains the light energy distribution from a physical structural perspective, ensuring that a larger proportion of light energy is preferentially allocated to the first light-emitting part 32 used for basic safety functions. This design ensures that the light intensity of the taillight's main warning function meets regulatory requirements, while efficiently using the remaining light energy for the projection function.

[0050] As some other implementation methods, see the appendix. Figure 2As shown, the light source 2 is located on the front side of the light guide; the light enters from the front of the light guide in a nearly horizontal direction, which forms a different light path layout than the scheme where the light source 2 is located at the top.

[0051] A third reflective surface 36 is formed within the light guide and is located below the first light emitting part 32. The light incident part 31 and the first light emitting part 32 are located on opposite sides of the reflective surface. This arrangement allows a portion of the light beam entering from the light incident part 31 to directly penetrate the light guide and reach the first light emitting part 32, while the other portion is incident on the third reflective surface 36. The third reflective surface 36 is configured to reflect the light beam incident upon it to the second light emitting part 33, and the reflective area of ​​the third reflective surface 36 is not greater than the light emitting area of ​​the first light emitting part 32. This structural area ratio physically constrains the proportion of light energy used for projection, prioritizing ensuring that the first light emitting part 32, which is directly used for the basic visual signal, receives sufficient light energy to meet the safety regulations' requirements for the brightness of the main light pattern.

[0052] In this embodiment, the first reflecting surface 34 is arranged at a 45° angle to the optical axis of the light-incident part 31, and this reflecting surface is parallel to the second reflecting surface 35. This geometric relationship causes the light beam to be deflected by 90° after being reflected by the first reflecting surface 34, and its propagation direction becomes horizontal; the light beam incident on the second reflecting surface 35 is deflected by 90° again, and its propagation direction becomes vertically downward. Through two consecutive 90° deflections, the horizontal emission direction of the first optical path G1 and the vertical emission direction of the second optical path G2 are ultimately perpendicular to each other. This precise angle control ensures the accuracy and predictability of the light path allocation, while making the internal optical path layout of the light guide extremely compact, significantly optimizing the integration of components within the narrow space of the lamp housing 1.

[0053] In some embodiments, the surfaces of the first light-emitting portion 32 and / or the second light-emitting portion 33 are formed with optical patterns W for collimating the emitted light beam.

[0054] The function of the optical pattern W is to collimate the light beam emitted from the light-emitting part. When the diverging light beam passes through the light-emitting surface covered with the optical pattern W, the light rays will be refracted, and its propagation direction will be adjusted, making the emitted light beam more parallel. The collimated light beam has better directionality and a smaller divergence angle.

[0055] For the first light-emitting section 32, the collimated beam can form a basic visual signal light pattern with clear outline and uniform brightness, effectively meeting the regulatory requirements for luminous intensity and light pattern distribution. For the second light-emitting section 33, the collimated beam can pass through the subsequent pattern forming unit 4 and projection lens 5 more efficiently, ultimately forming a projection pattern with clear edges and minimal distortion on the tailgate trim panel, significantly improving the imaging quality.

[0056] In some embodiments, the pattern forming unit 4 is a film. Specifically, the film is made of a transparent or translucent material, and its surface is formed with a preset opaque or diffuse reflection pattern area through coating, engraving, or printing processes. The preset pattern can be a brand logo, text, or simple graphics.

[0057] When the second optical path G2 beam, guided by the optical distributor 3, shines onto the film, the portion of the beam corresponding to the transparent area of ​​the pattern passes through smoothly, while the light corresponding to the obscured area of ​​the pattern is blocked. Through this selective light transmission process, the originally uniform beam is modulated into a light signal carrying specific pattern information. The beam modulated by the film continues to propagate to the projection lens 5, which focuses the modulated beam to form an image, ultimately projecting a clear preset pattern onto the car tailgate trim panel 6.

[0058] In some embodiments, the surface of the tailgate trim panel 6 is a light-scattering structure surface. This surface is not a smooth mirror, but rather undergoes special physical treatment or has a specific micro-texture, such as a mesh or leather texture.

[0059] When a beam of light carrying a preset pattern is projected onto the surface of the light-scattering structure by the projection lens 5, the light undergoes diffuse reflection upon encountering the surface's microstructure. This diffuse reflection effect ensures that the projected pattern maintains uniform brightness and clear visibility from all viewing angles, effectively avoiding problems such as bright spots, glare, or excessively bright areas of the pattern that can be caused by specular reflection. The presence of the light-scattering structure surface means that the imaging of the projected pattern no longer depends on a specific viewing angle, thus significantly expanding the visible range of the pattern. Whether the following vehicle is directly behind or to the side, the driver can clearly see the pattern displayed on the tailgate trim, improving the practicality and safety of the projection function.

[0060] The second embodiment of this utility model also discloses an automobile, including the automotive projection taillight disclosed in the above embodiments. Specifically, the automotive projection taillight is mounted on the tailgate or side panel. The taillight is fixedly connected to the vehicle body through the mounting structure on its housing 1, and completes the connection of the electrical interface with the vehicle wiring harness, thus becoming an integral part of the automobile's external lighting system.

[0061] When the vehicle is in motion, the automotive projection taillights perform a dual function. Their basic visual signal light patterns function normally as position lights and brake lights, providing legally mandated safety warnings and ensuring driving safety. Simultaneously, their projection function can display preset personalized patterns on the tailgate trim panel, adding a unique brand identity and interactive experience to the vehicle.

[0062] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A car projection taillight, comprising a lamp housing (1) and at least one light source (2) disposed within the lamp housing (1), characterized in that: It also includes an optical distributor (3), a pattern forming unit (4), and a projection lens (5) disposed within the lamp housing (1); The optical distributor (3) is configured to receive and distribute the light beam emitted by the light source (2) to form a first optical path (G1) and a second optical path (G2) that are independent of each other; The first optical path (G1) is used to form the basic visual signal light pattern of the car taillight; The pattern forming unit (4) and the projection lens (5) are sequentially arranged in the second optical path (G2). The pattern forming unit (4) is configured to modulate the light beam passing through the second optical path (G2) to carry a preset pattern, and project the preset pattern onto the car tailgate trim panel (6) through the projection lens (5).

2. The automotive projection taillight as described in claim 1, characterized in that: The optical distributor (3) is a light guide, which includes an input section (31) opposite to the light source (2), a first output section (32) for outputting the first light path (G1), and a second output section (33) for outputting the second light path (G2).

3. The automotive projection taillight as described in claim 2, characterized in that: The light source (2) is disposed on the top of the light guide; a first reflective surface (34) and a second reflective surface (35) are formed in the light guide; the first reflective surface (34) is located downstream of the light path of the light-incident part (31) and is used to guide the light beam to the first light-out part (32) and the second reflective surface (35); the second reflective surface (35) is located downstream of the light path of the first reflective surface (34) and below the first light-out part (32) and is used to guide the light beam to the second light-out part (33).

4. The automotive projection taillight as described in claim 3, characterized in that: The bottom edge of the first reflective surface (34) and the bottom edge of the second reflective surface (35) are on the same horizontal plane; the top edge of the first reflective surface (34) and the top edge of the first light-emitting part (32) are on the same horizontal plane; and the light-incident area of ​​the second reflective surface (35) is not greater than the light-emitting area of ​​the first light-emitting part (32).

5. The automotive projection taillight as described in claim 2, characterized in that: The light source (2) is disposed on the front side of the light guide; a third reflective surface (36) is formed in the light guide and is located below the first light emitting part (32). The light-incident part (31) and the first light emitting part (32) are located on opposite sides of the reflective surface. The third reflective surface (36) is configured to reflect the light beam incident on it to the second light emitting part (33). The reflective area of ​​the third reflective surface (36) is not greater than the light emitting area of ​​the first light emitting part (32).

6. The automotive projection taillight as described in claim 2, characterized in that: The surfaces of the first light-emitting part (32) and / or the second light-emitting part (33) are formed with optical patterns (W) for collimating the emitted light beam.

7. The automotive projection taillight as described in claim 1, characterized in that: The pattern forming unit (4) is a film.

8. The automotive projection taillight as described in any one of claims 2 to 6, characterized in that: The light guide has a light-concentrating surface (310) in the light-inlet portion (31) for converging the light beam emitted by the light source (2).

9. The automotive projection taillight as described in claim 1, characterized in that: The surface of the car tailgate trim panel (6) is a light-scattering structure surface.

10. A car, characterized in that, Including the automotive projection taillight as described in any one of claims 1 to 9.

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