Headlight optical components, headlight modules, vehicle headlights and vehicles

Abstract

The present invention relates to a vehicle lighting system, and discloses a vehicle light optical element, comprising a light input portion (11), a transmission portion (12), and a light output portion (13). The light input portion (11) comprises at least one light input structure (111); the transmission portion (12) is arranged between the light input portion (11) and the light output portion (13), and comprises a light-transmitting portion (121) located at the center and a light-absorbing portion (122) located at the periphery; the light output portion (13) comprises a light output surface (131) protruding outward. The vehicle light optical element has the advantages of simple structure and convenient dimming. The present invention also discloses a vehicle light module using the vehicle light optical element, a vehicle headlamp comprising the vehicle light module, and a vehicle using the vehicle headlamp.

Description

Technical Field

[0001] The present invention relates to a vehicle lighting system, in particular to a vehicle light optical element, a vehicle light module, a vehicle headlamp and a vehicle. Background Art

[0002] A headlight module is a device or unit that, when used alone or in combination, can achieve one or more vehicle lighting functions. Typically, headlight modules used to produce low or high beams are equipped with primary optical elements (such as reflectors and transparent light guides) and secondary optical elements (such as lenses). The lens or a structure with lens-like functionality serves as the optical element for the module's final light output.

[0003] With recent advances in automotive control technology, matrix headlights have become widely used. Matrix headlight modules can subdivide the high-beam illumination area into multiple zones, enabling ADB functionality. This allows objects in front of the vehicle to be shielded, preventing dazzle for other road users and improving driving safety.

[0004] Existing matrix headlamp modules also feature primary and secondary optical elements, which combine and project light from multiple light sources toward the front of the vehicle, creating the desired designed light pattern. This places high demands on the manufacturing and assembly precision of these primary and secondary optical elements, requiring a complex dimming process before the vehicle's headlights leave the factory to meet design requirements. Both the primary and secondary optical elements require mounting brackets, which are then attached to the lamp body or heat sink. These factors contribute to the complex structure, large size, difficulty in installation and dimming, and high cost of existing matrix headlamp modules. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a headlight optical element which replaces the existing primary optical elements and secondary optical elements, has a simple structure, a small volume, and is easy to install and adjust.

[0006] A further technical problem to be solved by the present invention is to provide a vehicle light module having a simple structure, high installation precision and good stability.

[0007] A further technical problem to be solved by the present invention is to provide a vehicle headlamp which has a simple structure, is convenient for dimming and is small in size.

[0008] In addition, the technical problem to be solved by the present invention is to provide a vehicle whose headlights are small in size and easy to adjust.

[0009] In order to solve the above technical problems, the present invention provides, on the one hand, a headlight optical element, comprising a light input portion, a transmission portion and a light output portion, wherein the light input portion includes at least one light input structure; the transmission portion is arranged between the light input portion and the light output portion, and the transmission portion includes a light-transmitting portion located in a central portion and a light-absorbing portion located in a peripheral portion; the light output portion includes a light-emitting surface protruding outward.

[0010] Preferably, the portions of the light-absorbing portion on the left and right sides of the transmission portion, close to the light-entering portion, extend parallel to the optical axis toward the light-emitting portion; the portions close to the light-emitting portion gradually approach the optical axis while extending toward the light-emitting portion; and the reflectivity of the inner side surfaces on the left and right sides of the light-absorbing portion is no greater than 20%. Through this preferred technical solution, the incident angle formed when the light incident from the light-entering portion hits the inner side surfaces on the left and right sides of the light-absorbing portion becomes smaller, which can reduce the reflectivity of the inner side surfaces of the light-absorbing portion to the light, allowing more light to be refracted into the light-absorbing portion and absorbed by the light-absorbing portion, thereby greatly reducing stray light formed by reflected light. In this preferred technical solution, the reflectivity of the inner side surfaces on the left and right sides of the light-absorbing portion can be less than 20%, or even less than 5%.

[0011] Preferably, the light-absorbing portions on the upper and lower sides of the transmission portion gradually expand away from the optical axis as they extend from the light-entry portion toward the light-exit portion. This preferred technical solution minimizes vertical restriction on light entering from the light-entry portion, allowing more light to pass through the light-transmitting portion and into the light-exit portion, forming an illumination pattern and improving light utilization.

[0012] Preferably, the width of the base of the light-emitting portion is greater than the width of the adjacent light-transmitting portion, and the height of the base of the light-emitting portion is greater than the height of the adjacent light-transmitting portion. With this preferred technical solution, light entering the light-emitting portion through the light-transmitting portion is more closely confined to the light-emitting surface, where it forms an illuminating light pattern due to refraction. This reduces the amount of light directly incident on the side surfaces of the light-emitting portion, preventing light from escaping from the side surfaces and forming stray light.

[0013] Further preferably, the side surface of the light-emitting portion gradually approaches the optical axis as it extends from its base toward the light-emitting surface. In this preferred technical solution, the inclined configuration of the side surface of the light-emitting portion allows light reflected from the side surface of the light-emitting portion to have a smaller angle of incidence when it strikes the light-emitting surface, making it easier for total internal reflection to occur.

[0014] Preferably, the light incident structure includes a light incident surface protruding toward the end. In this preferred technical solution, the light incident surface protruding toward the end can gather more light emitted by the light source and facilitate light emitted by different light sources to form respective illumination areas.

[0015] Preferably, the transmission portion is molded using two-color injection molding: the central light-transmitting portion is molded from a transparent material, while the peripheral light-absorbing portion is molded from a dark-colored material. This preferred technical solution allows the light-transmitting portion and the light-absorbing portion to fit tightly together, forming a single interface. This prevents loose fit that could cause multiple reflections of light at the interface and generate stray light. The transparent material facilitates light transmission, while the dark-colored material enhances light absorption.

[0016] Preferably, the light-transmitting portion is made of transparent plastic, silicone, or glass; the light-absorbing portion is made of black PC. In this preferred technical solution, the plastic can be transparent PMMA (polymethyl methacrylate) or transparent PC (polycarbonate). The material used for the light-transmitting portion has high transparency and good light transmission properties, facilitating the passage of more light. The black PC (polycarbonate) material used for the light-absorbing portion absorbs more light, reducing light reflection and stray light.

[0017] The second aspect of the present invention provides a headlight module, comprising at least one light source, a circuit board, a heat sink and the headlight optical element provided by the first aspect of the present invention; the light source is mounted on the circuit board, the headlight optical element is mounted on the heat sink through the circuit board, and the light source corresponds one-to-one with the light incident structure.

[0018] Preferably, the light-absorbing portions on the left and right sides of the headlight optical element, near the circuit board, extend to form mounting portions, which are then mounted on the heat sink. In this preferred technical solution, mounting the headlight optical element via these mounting portions eliminates the need for mounting brackets used for existing primary or secondary optical elements, simplifying the structure of the headlight module. Furthermore, since the headlight optical element is directly positioned and mounted, installation accuracy and stability are improved.

[0019] Preferably, the mounting portion is provided with a locating pin, and both the circuit board and the heat sink are provided with a locating hole, with the locating pin being held within the locating hole. This preferred technical solution increases the positioning accuracy of the locating pin and the locating hole, further improving the installation accuracy and stability of the headlight optical element.

[0020] Preferably, the mounting portion is provided with legs and supported on the circuit board by the legs. In this preferred technical solution, the provision of the legs changes the contact portion between the mounting portion and the circuit board from surface contact to point-line contact, thereby improving the mounting stability of the headlight optical element.

[0021] A third aspect of the present invention provides a vehicle headlamp, which includes at least one vehicle lamp module provided by the second aspect of the present invention.

[0022] A fourth aspect of the present invention provides a vehicle, which uses the vehicle headlamp provided by the third aspect of the present invention.

[0023] Through the above-described technical solution, the headlight optical element of the present invention replaces traditional primary and secondary optical elements with a single optical element, and is capable of projecting light from multiple light sources separately toward the front of the vehicle, creating a multi-pixel lighting effect. Because light emitted by the light source directly shapes the illumination light pattern after passing through the integrally connected light input, transmission, and light output sections, the positioning and dimming structure from the light source to the primary and secondary optical elements is simplified, making installation and dimming more convenient and reducing the size of the optical element. The structure of the light-transmitting and light-absorbing sections of the transmission section prevents light from escaping from the sides of the optical element, while also reducing the generation of stray light by light reflected from the sides of the transmission section and then emitted from the light output section.

[0024] In the vehicle light module of the present invention, light from multiple light sources is converged by multiple light-input structures and then projected by the vehicle light optical element of the present invention, forming a multi-pixel illumination pattern. The vehicle light optical element is directly mounted on the heat sink via the circuit board, resulting in a simpler structure, smaller footprint, high mounting precision, and excellent stability of the vehicle light optical element.

[0025] The vehicle headlamp of the present invention has the same advantages because it adopts the vehicle lighting device of the present invention.

[0026] The vehicle of the present invention adopts the vehicle headlamp of the present invention and also has the above advantages.

[0027] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a transverse cross-sectional schematic diagram of an embodiment of a vehicle lamp module of the present invention;

[0029] Figure 2 yes Figure 1 Schematic diagram of the longitudinal section;

[0030] Figure 3 yes Figure 1 Schematic top view of

[0031] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure;

[0032] Figure 5 yes Figure 4 Schematic diagram of parts explosion;

[0033] Figure 6 Schematic diagram of the light shape of the vehicle headlamp of the present invention.

[0034] Description of Reference Numerals

[0035] 1 Headlight optical element 11 Light input part

[0036] 111 Light-entry structure 12 Transmission unit

[0037] 121 light-transmitting portion 122 light-absorbing portion

[0038] 13 light-emitting part 131 light-emitting surface

[0039] 14 Mounting portion 141 Support foot

[0040] 142 Positioning pin 2 Light source

[0041] 3 Circuit board 31 Circuit board mounting hole

[0042] 32 Positioning hole 4 Radiator

[0043] 5 Screw 6 Illumination bright area

[0044] 7 Dark Zone DETAILED DESCRIPTION

[0045] In the present invention, unless otherwise specified, the directions or positional relationships indicated by the directional words such as "up, down, left, right, front, and rear" are based on the directions or positional relationships indicated by the vehicle's normal driving state after the headlight optical element, headlight module, or vehicle headlight of the present invention is installed on the vehicle.

[0046] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "disposed," or "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediate medium; they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0047] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0048] like Figures 1 to 3As shown, one embodiment of the automotive light optical element of the present invention includes an integrally connected light input portion 11, a transmission portion 12, and a light output portion 13. The light input portion 11 includes at least one light input structure 111, such as five light input structures 111, for guiding light emitted by a light source into the light input portion 11. The transmission portion 12 is disposed between the light input portion 11 and the light output portion 13, and is used to transmit light input from the light input portion 11 to the light output portion 12, while preventing light from being emitted from the sides of the transmission portion 12 or from being reflected from the sides of the transmission portion and then emitted from the light output portion, thereby forming stray light. The transmission portion 12 includes a light-transmitting portion 121 located in the center and a light-absorbing portion 122 located in the periphery. The light-transmitting portion 121 is made of a highly light-transmitting material and is used to transmit light input from the light input portion 11 to the light output portion 13. The light-absorbing portion 122 is made of a light-absorbing material and is used to absorb light that impinges on the light-absorbing portion 122, thereby preventing light that passes through the light-transmitting portion 121 from being emitted from its sides or from being reflected from its sides, thereby forming stray light. In contrast, existing optical elements are usually painted black on the sides to prevent light from escaping. However, blocking light by applying black paint not only has poor adhesion, but also affects the aesthetics of the headlight optical element. Existing headlight optical elements also reduce the generation of stray light by setting leather grain on the side, but this technical solution is still difficult to achieve a satisfactory effect of reducing stray light. The light-emitting portion 13 includes a light-emitting surface 131 protruding outward, which together with the light-incoming structure 111 forms a convex lens for collecting and collimating the incident light and then projecting it forward to form an illumination light shape. The light introduced by the five light-incoming structures 111 is transmitted by the transmission portion 12 and then projected by the light-emitting portion 13, and can form a light shape composed of five illumination areas.

[0049] In some embodiments of the vehicle light optical element of the present invention, as Figure 1 As shown, the portions of the light-absorbing sections 122 on the left and right sides of the transmission section 12, near the light-entering section 11, extend parallel to the optical axis toward the light-emitting section 13. The portions near the light-emitting section 13 gradually converge toward the optical axis as they extend toward the light-emitting section 13. At this point, when light strikes the portion of the light-absorbing section 122 near the light-emitting section 13 at the same angle, it forms a smaller angle of incidence. The smaller the angle of incidence at the interface, the smaller the proportion of reflected light and the larger the proportion of refracted light. This results in more light being refracted at the interface between the light-transmitting section 121 and the light-absorbing section 122 and absorbed by the light-absorbing section 122, while less light is reflected and reenters the light-transmitting section 121. Very little light is able to escape through the light-emitting surface 131 and form stray light. This technical solution can easily reduce the reflectivity of the interface between the light-transmitting section 121 and the light-absorbing section 122 to below 20%, or even below 5%, effectively suppressing the generation of stray light.

[0050] At the same time, due to the arrangement of the light absorbing portion 122, the left and right widths of the portion of the light-transmitting portion 121 located at the center thereof close to the light-emitting portion 13 are narrowed, and the light irradiated on the light absorbing portion 122 is absorbed by the light absorbing portion 122, which limits the angles of the light irradiated on the left and right sides of the light-emitting portion 13, so that the incident angles formed by the light irradiated on the right (left) side of the light-emitting portion 13 are significantly greater than the critical angle of total reflection and are totally reflected, and are reflected to the light-emitting surface 131 of the light-emitting portion 13, which is convex outward. The spherical shape allows more light reflected from the side of the light-emitting portion 13 to undergo total internal reflection at the light-emitting surface 131, reflected to the left (right) side of the light-emitting portion 13, and then totally reflected back from the left (right) side of the light-emitting portion 13 to the light-transmitting portion 121, reaching the light-absorbing portion 122 on the right (left) side. Because the light-absorbing portion 122 can absorb incident light, and the reflectivity of the interface between it and the light-transmitting portion 121 is very low, the vast majority of the reflected light is absorbed by the light-absorbing portion 122, and very little light is able to reflect from the interface. Moreover, the reflected light that is emitted from the light-emitting portion 13 is even less, essentially eliminating stray light.

[0051] like Figure 1 As shown, taking the light source 2 located on the far left as an example, a part of the light emitted by it is directly emitted to the light-emitting surface 131 of the light-emitting portion 13, and the projection of the light-emitting surface 131 forms the light shape of the car light; a part is emitted to the boundary surface between the light-transmitting portion 121 and the light-absorbing portion 122, most of which is absorbed by the light-absorbing portion 122, and only a small amount of reflected light is formed; and a small part of the light is directly emitted to the right side of the light-emitting portion 13. This part of the light can be totally reflected to the light-emitting surface 131 of the light-emitting portion 13, and is totally reflected by the light-emitting surface 131 to the left side of the light-emitting portion 13, and then is totally reflected back to the light-transmitting portion 121 by the left side of the light-emitting portion 13, and is cut off by the light-absorbing portion 122 on the right, and similarly will not be emitted from the side. As mentioned above, very little light is reflected by the right inner side of the light-absorbing portion 122.

[0052] In some embodiments of the vehicle light optical element of the present invention, as Figure 2 As shown, the light-absorbing portions 122 on the upper and lower sides of the transmission portion 12 gradually expand away from the optical axis as they extend from the light input portion 11 toward the light output portion 13. Accordingly, the longitudinal cross-section of the light-transmitting portion 121 is triangular, allowing more light entering from the light input portion 11 to be transmitted to the light-emitting surface 131 of the light-emitting portion 13, where it is refracted and projected to form the illuminating light pattern. The small amount of light that directly strikes the sides of the light-emitting portion 13 is mostly absorbed by the light-absorbing portions 122 through total internal reflection from the sides of the light-emitting portion 13 and the light-emitting surface 131, resulting in very little stray light.

[0053] In some embodiments of the vehicle light optical element of the present invention, as Figure 1 、 Figure 2As shown, the base of the light-emitting portion 13, i.e., the end connected to the transmission portion 12, has a greater left-right width than the adjacent light-transmitting portion 121, and the base of the light-emitting portion 13 has a greater height than the adjacent light-transmitting portion 121. This structure allows more light entering the light-emitting portion 13 through the light-transmitting portion 121 to be projected toward the light-emitting surface 131 of the light-emitting portion 13, forming an illuminating light pattern through the projection of the light-emitting surface 131. This reduces the amount of light emitted from the light-transmitting portion 121 toward the side of the light-emitting portion 13. It also limits the amount of light that strikes the side of the light-emitting portion 13 near its base, allowing the incident angle of light that strikes the side of the light-emitting portion 13 to be greater than the critical angle, resulting in total internal reflection. The base width of the light-emitting portion 13 can be the same as the outer width of the adjacent light-absorbing portion 122, and the base height of the light-emitting portion 13 can be the same as the outer height of the adjacent light-absorbing portion 122.

[0054] It should be noted that the size of the headlight optical element of the present invention is related to the number of light-incident structures 111, that is, the number of illumination areas that can be formed. The more illumination areas that can be formed, the larger the headlight optical element of the present invention. When the headlight optical element of the present invention has five light-incident structures 111, that is, when it can form five illumination areas, the light-emitting surface 131 of the headlight optical element is approximately 20 mm in height and 10 mm in width. This is significantly smaller than the lens opening size of existing matrix headlights, effectively reducing the size of the headlight module and the headlight, and facilitating the design of the headlight shape.

[0055] In some embodiments of the vehicle light optical element of the present invention, as Figure 1 、 Figure 2 As shown, the four side surfaces of the light-emitting portion 13, top, bottom, left, and right, gradually approach the optical axis during the transition from the base of the light-emitting portion 13 to the light-emitting surface 131, forming planes inclined toward the optical axis. This inclined structure can further increase the angle of incidence of light reflected from the side surfaces of the light-emitting portion 13 to the light-emitting surface 131, ensuring that the angle of incidence of more light exceeds the critical angle, resulting in total internal reflection. Although this inclined structure also reduces the angle of incidence of light from the light-input portion 11 to the side surfaces of the light-emitting portion 13, it is not sufficient to reduce the angle of incidence of this portion of light to less than the critical angle, and thus does not prevent it from undergoing total internal reflection.

[0056] As an embodiment of the vehicle light optical element of the present invention, Figure 1-3As shown, the light-entering structure 111 is provided with a light-entering surface protruding toward the end, and the light-entering surface is used to guide light into the headlight optical element of the present invention. The light-entering surface of the light-entering structure 111 can also be set as a plane, or in the shape of a focusing cup commonly used at the light-entering end of a traditional primary optical element, which can also play the role of guiding light. However, the use of the light-entering surface protruding toward the end of the present embodiment can, on the one hand, better play the role of converging the incident light, and on the other hand, can cooperate with the light-emitting surface 131 protruding outward to form a double convex lens structure, which can better collect and collimate the incident light and then project it forward to form the ideal designed light shape.

[0057] In some embodiments of the automotive lighting optical element of the present invention, the transmission portion 12 is formed by two-color injection molding. The light-transmitting portion 121 is injection-molded from a transparent plastic material with good light transmission properties, such as transparent plastic or silicone, preferably PMMA or PC. The light-absorbing portion 122 is injection-molded from a dark-colored, light-absorbing plastic material, such as dark-colored plastic, preferably dark green or black PC.

[0058] In some embodiments of the automotive light optical element of the present invention, the light-transmitting portion 121 may be made of transparent plastic, transparent silicone, or glass, wherein the transparent plastic may preferably be PMMA or PC. The light-absorbing portion 122 may be made of black PC.

[0059] The highly transparent materials used in the light-transmitting portion 121, such as PMMA, PC, silicone, or glass, effectively transmit light incident from the light-entering portion 11 to the light-emitting portion 13, reducing light transmission losses. The light-absorbing portion 122, made of a dark plastic such as dark green or black PC, effectively absorbs light incident on it, preventing it from passing through and exiting from its sides. Furthermore, the low surface reflectivity of the dark plastic reduces the amount of stray light that would otherwise be reflected from the light-absorbing portion 122 and then emitted from the light-emitting surface 131.

[0060] An embodiment of the vehicle light module of the present invention is as follows Figure 1-Figure 5As shown, it includes at least one light source 2, a circuit board 3, a heat sink 4 and the headlight optical element 1 of the present invention. The number of light sources 2 is consistent with the number of light-entering structures 111 on the headlight optical element 1. The light sources 2 can be installed side by side on the circuit board 3 and can emit light independently under the drive of the power supply arranged on the circuit board 3. The headlight optical element 1 is installed on the heat sink 4 through the circuit board 3, so that each light-entering structure 111 corresponds to each light source 2 one by one, so that the light emitted by each light source 2 can enter the headlight optical element 1 more through the corresponding light-entering structure 111, and form an illumination light shape through the projection of the headlight optical element 1. The form of installing the headlight optical element 1 on the heat sink 4 through the circuit board 3 can, on the one hand, fix the relative position of the headlight optical element 1 and the light source 2, and on the other hand, can fix the circuit board 3 and the heat sink 4 together, so that the heat generated by the light source 2 can be better dissipated through the heat sink 4, preventing the light source 2 from being damaged due to excessive temperature.

[0061] As an embodiment of the vehicle light module of the present invention, Figure 1 、 Figure 3-Figure 5 As shown, the light-absorbing portions 122 on the left and right sides of the headlight optical element 1, near the circuit board 3, extend to form mounting portions 14. The headlight optical element 1 is mounted on the radiator 4 via the mounting portions 14. Because the mounting portions 14 are integrally formed with the headlight optical element 1, they ensure a stable mounting of the headlight optical element 1 on the radiator 4. In conventional vehicle headlights, both the primary and secondary optical elements are secured via mounting brackets. This creates a single mounting connection between the primary or secondary optical element and the mounting bracket, and a single mounting connection between the mounting bracket and the radiator. Compared to existing mounting methods, the headlight module of the present invention not only eliminates the need for mounting brackets, resulting in a simpler structure, but also achieves a single mounting connection between the headlight optical element 1 and the radiator 4, resulting in higher positioning accuracy and structural stability. The headlight optical element 1 can be mounted on the radiator 4 by defining mounting holes in the mounting portions 14, circuit board mounting holes 31 in the circuit board 3, and threaded holes in the radiator 4. Screws 5 are inserted through the mounting holes and the circuit board mounting holes 31 and then screwed into the threaded holes to secure the screws.

[0062] In some embodiments of the vehicle lamp module of the present invention, such as Figure 5 As shown, a positioning pin 142 is provided on the side of the mounting portion 14 facing the circuit board 3, and positioning holes 32 are provided on both the circuit board 3 and the radiator 4. When the headlight optical element 1 and the radiator 4 are installed and connected, the positioning pin 142 is kept in the positioning hole 32, so that the relative positions among the headlight optical element 1, the circuit board 3 and the radiator 4 are more accurate and stable, thereby ensuring the accuracy and stability of the illumination area generated by the light emitted by each light source 2, thereby ensuring the accuracy and stability of the entire illumination light shape.

[0063] In some embodiments of the vehicle lamp module of the present invention, such as Figure 4 、 Figure 5 As shown, mounting portion 14 is provided with legs 141. When headlight optical element 1 is mounted on heat sink 4, legs 141 support it against circuit board 3, securing the position of headlight optical element 1. Legs 141 and screws 5 create a point-to-line support structure between mounting portion 14 and circuit board 3, preventing wobble caused by uneven contact surfaces during surface-to-surface support and improving mounting stability.

[0064] In one embodiment of the vehicle headlamp of the present invention, at least one vehicle light module of the present invention is included, such as three vehicle light modules. When the vehicle headlamp has three vehicle light modules, and each vehicle light module has five light sources 2, the vehicle headlamp can form fifteen lighting areas, and the fifteen lighting areas are combined to form the light shape of the vehicle headlamp. This is equivalent to a matrix headlamp composed of fifteen pixels, which can realize 15-area subdivision lighting. Figure 6 As shown, the fifteen light sources 2 of the vehicle headlight can form fifteen illuminated bright areas 6. When a target such as a vehicle or pedestrian appears in the location of certain illuminated bright areas 6 in the illuminated area in front of the vehicle headlight, the light sources 2 corresponding to the corresponding illuminated bright areas 6 can be turned off, forming a dark area 7 in the target area, preventing the light from dazzling other traffic participants and affecting traffic safety. The number of illuminated areas (pixels) can be changed by changing the number of light sources 2 in the headlight module and / or the number of headlight modules in the vehicle headlight, creating a lighting effect similar to a matrix headlight with different pixels. Because the vehicle headlight no longer uses primary and secondary optical elements simultaneously, a complex dimming process is no longer required. The positioning between the optical elements and the light sources is also more accurate. At the same time, the corresponding mounting bracket is eliminated, making the vehicle headlight structure simpler and smaller.

[0065] The vehicle of the present invention also has the beneficial effects of the vehicle headlights in the above-mentioned embodiments because it adopts the vehicle headlights of the present invention.

[0066] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," or "an implementation" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention may be subjected to various simple modifications, including combining the specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as disclosed in the present invention and fall within the scope of protection of the present invention.

Claims

1. A vehicle light optical element, comprising a light input portion (11), a transmission portion (12) and a light output portion (13), characterized in that: The light entrance portion (11) includes at least one light entrance structure (111); the transmission portion (12) is arranged between the light entrance portion (11) and the light exit portion (13), and the transmission portion (12) includes a light-transmitting portion (121) located at a central portion and a light-absorbing portion (122) located at a peripheral portion; the light exit portion (13) includes a light exit surface (131) protruding outward; wherein, The portions of the light absorbing portion (122) on the left and right sides of the transmission portion (12) close to the light incident portion (11) extend parallel to the optical axis toward the light emitting portion (13); the portions close to the light emitting portion (13) gradually approach the optical axis while extending toward the light emitting portion (13); and the reflectivity of the inner side surfaces on the left and right sides of the light absorbing portion (122) is not greater than 20%.

2. The vehicle light optical element according to claim 1, wherein: The light absorbing parts (122) on the upper and lower sides of the transmission part (12) gradually expand in a direction away from the optical axis while extending from the light input part (11) to the light output part (13).

3. The vehicle light optical element according to claim 1, wherein: The width of the base of the light-emitting portion (13) is greater than the width of the adjacent light-through portion (121), and the height of the base of the light-emitting portion (13) is greater than the height of the adjacent light-through portion (121).

4. The vehicle light optical element according to claim 3, characterized in that: The side surface of the light emitting portion (13) gradually approaches the optical axis while extending from its base toward the light emitting surface (131).

5. The vehicle light optical element according to any one of claims 1 to 4, characterized in that: The light incident structure (111) comprises a light incident surface protruding toward the end.

6. The vehicle light optical element according to any one of claims 1 to 4, characterized in that: The transmission part (12) is formed by double-color injection molding, the light-transmitting part (121) at the center is injection molded by transparent material, and the light-absorbing part (122) at the peripheral part is injection molded by dark material.

7. The vehicle light optical element according to any one of claims 1 to 4, characterized in that: The light-transmitting portion (121) is a light-transmitting portion made of transparent plastic, silicone or glass; and the light-absorbing portion (122) is a light-absorbing portion made of black PC.

8. A vehicle light module, characterized in that: The invention comprises at least one light source (2), a circuit board (3), a heat sink (4) and a headlight optical element (1) according to any one of claims 1 to 7; the light source (2) is mounted on the circuit board (3), the headlight optical element (1) is mounted on the heat sink (4) through the circuit board (3), and the light source (2) corresponds to the light incident structure (111) in a one-to-one manner.

9. The vehicle light module according to claim 8, characterized in that: The light absorbing portion (122) on the left and right sides of the headlight optical element (1) close to the circuit board (3) extends to both sides to form a mounting portion (14), and is mounted on the radiator (4) through the mounting portion (14).

10. The vehicle light module according to claim 9, characterized in that: The mounting portion (14) is provided with a positioning pin (142), and both the circuit board (3) and the heat sink (4) are provided with positioning holes (32), and the positioning pin (142) is kept in the positioning hole (32).

11. The vehicle light module according to claim 9 or 10, characterized in that: The mounting portion (14) is provided with a support leg (141) and is supported on the circuit board (3) via the support leg (141).

12. A vehicle headlamp, characterized in that: The vehicle light module comprises at least one vehicle light module according to any one of claims 8 to 11.

13. A vehicle, characterized in that: The vehicle headlamp includes the vehicle headlamp according to claim 12.

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