Primary optical element, primary optical assembly, optical assembly, vehicle lamp lighting device, and vehicle

Abstract

A primary optical element (1), a primary optical assembly, an optical assembly, a vehicle lighting device, and a vehicle are disclosed. The primary optical element (1) includes a primary optical element body, which includes a light guide section (101) and a fusion light emitting section (102) arranged from back to front. The front end face of the fusion light emitting section (102) is configured as a light emitting surface (1021). The light guide section (101) includes a plurality of light guide pillars (1011, 1012) arranged sequentially in the left-right direction. The thickness of the fusion light emitting section (102) in the vertical direction is greater than the thickness of the light guide section (101) in the vertical direction. The fusion light emitting section (102) can fuse the light transmitted from the plurality of light guide pillars (1011, 1012) to the fusion light emitting section (102) and then emit it through the light emitting surface (1021). A primary optical assembly including a primary optical element (1), an optical assembly including a primary optical assembly, and a vehicle lighting device including an optical assembly are also disclosed. The primary optical element (1) has high optical efficiency and produces excellent near-light beam pattern.

Description

Technical Field

[0001] This invention relates to vehicle lights, and more specifically, to a primary optical element. Furthermore, this invention also relates to a primary optical assembly including the primary optical element, an optical assembly including the primary optical assembly, and a vehicle lighting device and vehicle including the optical assembly. Background Technology

[0002] In the field of automotive lighting technology, automotive lighting devices are generally used for automobile headlight illumination. They consist of a light source, primary optical elements, and lenses or similar structural components forming a secondary light-emitting element. Primary optical elements are typically made of transparent materials such as glass, silicone, or plastic, and they perform primary light distribution (e.g., focusing, collimation) on the light emitted from the light source. Therefore, primary optical elements play a significant role in the quality of automotive lighting, and the positioning and installation reliability of these elements greatly affect the accuracy of the light pattern and the overall lighting effect. Furthermore, any component mounted on the primary optical element will influence the primary light distribution; excessive mounting and positioning structures can have varying degrees of impact on the light distribution performance of the primary optical element.

[0003] In existing technologies, the primary optical elements of automotive headlights typically have a focusing structure in the light-incident section to converge and collide the light emitted by the light source, thereby improving light utilization. However, this structure is relatively complex, requires high-precision manufacturing processes, is difficult to process, and involves cumbersome manufacturing procedures. For low beam illumination modes, some light rays do not require very high illuminance; meeting the requirements for light shape uniformity is sufficient, and the light-incident structure in the primary optical element does not need to be overly complex. For these reasons, light guides have gradually begun to be used in automotive headlights. These light guides are cylindrical, with one end housing the light source and the other end connected to the light-emitting section, allowing for direct convergence and propagation of the light emitted by the light source in low beam illumination modes.

[0004] However, existing primary optical elements containing light guides still suffer from poor optical efficiency and performance. Furthermore, with the miniaturization and flattening of automotive headlights, the market demand for smaller automotive lighting devices is increasing. This places higher demands on the positional accuracy of optical components such as headlight optical elements. Existing technologies cannot effectively guarantee the installation effect of primary optical elements, especially lacking optical element installation structures applicable to miniaturized automotive lighting devices. Consequently, the lighting effect and optical efficiency of these devices are unsatisfactory. Summary of the Invention

[0005] The first technical problem to be solved by the present invention is to provide a primary optical element that has high optical efficiency and produces a good near-beam shape effect.

[0006] The technical problem to be solved by the second aspect of the present invention is to provide a primary optical component that has high optical efficiency and produces a good near-beam shape effect.

[0007] The technical problem to be solved by the third aspect of the present invention is to provide an optical component that has high optical efficiency and produces a good near-beam shape effect.

[0008] The technical problem to be solved by the fourth aspect of the present invention is to provide a vehicle lighting device with high optical efficiency and good low beam effect.

[0009] The technical problem to be solved by the fifth aspect of the present invention is to provide a vehicle with high optical efficiency and good low-beam beam pattern.

[0010] To address the aforementioned technical problems, the first aspect of the present invention provides a primary optical element, comprising a primary optical element body, the primary optical element body including a light guide portion and a fusion light emitting portion arranged from back to front, the front end face of the fusion light emitting portion being configured as a light emitting surface, the light guide portion including a plurality of light guide pillars arranged sequentially in the left-right direction, the thickness of the fusion light emitting portion in the vertical direction being greater than the thickness of the light guide portion in the vertical direction, the fusion light emitting portion being capable of fusing the light transmitted to the fusion light emitting portion from the plurality of light guide pillars and then emitting it through the light emitting surface.

[0011] Preferably, the plurality of light guide pillars include two side light guide pillars and at least one intermediate light guide pillar. The at least one intermediate light guide pillar is arranged sequentially between the two side light guide pillars in a left-right direction. The outer surface of the side light guide pillar is configured to extend forward along a straight line from the rear end of the side light guide pillar and then bend outward along a curve to the rear side of the fused light-emitting part.

[0012] More preferably, the intermediate light guide post is configured such that the distance between the left and right sides gradually increases from back to front.

[0013] Specifically, the angle between the left and right sides of the intermediate light guide is 2°-4°, and the angle between the gap between the side light guide and the intermediate light guide adjacent to the side light guide is 5°-10°.

[0014] As a preferred embodiment, the light-emitting surface is configured as a convex curved surface.

[0015] Preferably, a cutoff line structure is formed at the bottom of the light-emitting surface. The cutoff line structure includes a central cutoff line structure and outer extension structures of the cutoff line located on both sides of the central cutoff line structure. The outer extension structures of the cutoff line are smoothly connected to the central cutoff line structure.

[0016] More preferably, the light-emitting surface includes a main light-emitting surface and a secondary light-emitting surface located below the main light-emitting surface. The secondary light-emitting surface is configured to gradually slope downwards and backwards from top to bottom, and the cutoff line structure is disposed on the secondary light-emitting surface.

[0017] Specifically, a transition surface is provided between the main light-emitting surface and the secondary light-emitting surface, and the transition surface is set as an arc surface so as to smoothly connect the main light-emitting surface and the secondary light-emitting surface.

[0018] A second aspect of the present invention provides a primary optical assembly, comprising a primary optical element according to any of the above-described technical solutions and a primary optical element bracket for mounting the primary optical element.

[0019] Preferably, the primary optical element support includes a primary optical element body receiving cavity, and the primary optical element support can be inserted into the primary optical element so that the primary optical element body is installed in the primary optical element body receiving cavity.

[0020] More preferably, the primary optical element further includes a primary optical element mounting portion connected to the primary optical element body. The left and right sides and the top surface of the fusion light-emitting portion are connected to the primary optical element mounting portion, and an insertion hole is formed between the bottom surface and the primary optical element mounting portion. A support plate is provided inside the primary optical element body receiving cavity so that the support plate can be inserted into the insertion hole when the primary optical element body is installed in the primary optical element body receiving cavity, and the fusion light-emitting portion is supported on the support plate.

[0021] Specifically, a locking block is provided on the outside of the primary optical element body receiving cavity, and a locking slot matching the locking block is provided on the primary optical element mounting part.

[0022] More specifically, the bottom of the support plate is provided with a reinforcing structure.

[0023] Typically, the primary optical element support is equipped with a sun-shielding focusing plate.

[0024] In a preferred embodiment, the light-emitting surface is configured as a convex curved surface, and a cutoff line structure is formed at the bottom of the light-emitting surface. The cutoff line structure includes a central cutoff line structure and outer extension structures located on both sides of the central cutoff line structure. The outer extension structures are smoothly connected to the central cutoff line structure. The front end face of the support plate is configured as a concave curved surface, and outer extension cutoff line structures are respectively provided on both sides of the front end of the top surface of the support plate. The outer extension cutoff line structures can be connected with the cutoff line structure to form a combined cutoff line structure.

[0025] Preferably, an aluminum plating layer is provided on the top surface of the support plate in the area between the outer extension structure of the cutoff line and the outer extension cutoff line structure.

[0026] Specifically, the rear end of the primary optical element body receiving cavity is provided with a plurality of frustum-shaped through holes with a cross-sectional perimeter that gradually decreases from front to back. The rear end opening of each frustum-shaped through hole is configured as a light guide post limiting hole that can limit the position of the light guide post. The number of frustum-shaped through holes is greater than or equal to the number of light guide posts.

[0027] A third aspect of the present invention provides an optical assembly comprising a primary optical assembly according to any of the above technical solutions, a secondary optical element, and a secondary optical element support for mounting the secondary optical element.

[0028] Preferably, the primary optical element support includes a primary optical element body receiving cavity, and the primary optical element support can be inserted into the primary optical element so that the primary optical element body is installed in the primary optical element body receiving cavity to form the primary optical assembly; the secondary optical element support is provided with a primary optical assembly receiving cavity for accommodating the primary optical assembly, the secondary optical element is installed at the front end of the primary optical assembly receiving cavity, and the primary optical element and the primary optical assembly receiving cavity are provided with positioning restriction structures to restrict the degree of freedom of the primary optical assembly when it is placed in the primary optical assembly receiving cavity.

[0029] More preferably, the positioning limiting structure includes a limiting cavity located on the primary optical component receiving cavity and a limiting block located on the primary optical element, wherein the limiting cavity matches the limiting block.

[0030] More preferably, the limiting blocks are located on the left and right sides of the front end of the primary optical element.

[0031] Specifically, the upper and lower end faces of the limiting block are formed as upper and lower limiting surfaces of the primary optical element, and the outer side is formed as left and right limiting surfaces of the primary optical element. The inner wall of the limiting cavity is provided with upper and lower limiting surfaces of the receiving cavity corresponding to the upper and lower limiting surfaces of the primary optical element and left and right limiting surfaces of the receiving cavity corresponding to the left and right limiting surfaces of the primary optical element.

[0032] Typically, the front end of the primary optical element is provided with a primary optical element forward movement limiting surface located on the upper side and / or lower side of the limiting block, and the rear end of the primary optical assembly receiving cavity is provided with a receiving cavity forward movement limiting surface that matches the primary optical element forward movement limiting surface.

[0033] In a preferred embodiment, the primary optical element further includes a primary optical element mounting portion connected to the primary optical element body, and the limiting block is located at the front end of the primary optical element mounting portion.

[0034] Preferably, the secondary optical element bracket has a guide pin at its rear end, and the primary optical element bracket has a guide hole that matches the guide pin.

[0035] A fourth aspect of the present invention provides a vehicle lighting device, including a low beam source and an optical component according to any of the above technical solutions, wherein the low beam source, the primary optical element and the secondary optical element are arranged sequentially from back to front.

[0036] Preferably, the vehicle lighting device further includes a circuit board, the low beam light source is disposed on the circuit board, the rear end of the primary optical element bracket is provided with a positioning pin and a circuit board abutment surface that can contact the circuit board, and the circuit board is provided with a positioning hole that matches the positioning pin.

[0037] More preferably, the vehicle lighting device also includes a radiator, and a screw post is provided at the rear end of the secondary optical element bracket, and the radiator is provided with screw holes that match the screw post.

[0038] A fifth aspect of the present invention provides a vehicle including a vehicle lighting device according to any of the above-described technical solutions.

[0039] Through the above technical solution, the primary optical element provided by the present invention is configured with a plurality of light guide pillars arranged sequentially in the left-right direction, and the thickness of the fusion light-emitting part in the vertical direction is greater than the thickness of the light guide part in the vertical direction. As the thickness of the fusion light-emitting part increases, the light transmitted from each light guide pillar to the fusion light-emitting part can not only be fused in the fusion light-emitting part, making the light transmitted to the light-emitting surface more uniformly distributed, but also make the light emitted from the light-emitting surface more diffused, which is beneficial to the softening of the light shape below the upper boundary of the near-light shape, thereby making the primary optical element have high optical efficiency and good near-light shape effect.

[0040] In a preferred embodiment of the present invention, the outer surface of the side light guide post is configured to extend forward along a straight line from the rear end, and then curve outward to the rear side of the fused light-emitting part, so that the outer contour of the side light guide post gradually curves to both sides, which can increase the illumination range on both sides of the near beam pattern; the light-emitting surface is configured as a forward-convex curved surface, which makes the emitted light more focused, and can further improve the optical efficiency of the primary optical element; the light-emitting surface is segmented, and the main light-emitting surface and the secondary light-emitting surface are conducive to improving dispersion; the primary optical element and the primary optical element bracket are formed into a primary optical assembly by plugging them together, which can improve the structural stability and the stability of the light pattern formed when the primary optical element is installed and used, making the structure between the components of the vehicle lighting device more compact and the positional accuracy higher; the primary optical element and the primary optical assembly receiving cavity are provided with a positioning restriction structure, which can improve the structural stability and relative positional accuracy of the connection between the primary optical assembly and the secondary optical element bracket, thereby improving the relative positional accuracy between the primary optical element and the secondary optical element, so as to improve the formed near beam pattern effect.

[0041] Other advantages of the present invention and the technical effects of preferred embodiments will be further described in the following detailed description. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of one specific embodiment of the primary optical element in this invention;

[0043] Figure 2 yes Figure 1 The second schematic diagram of the primary optical element shown;

[0044] Figure 3 yes Figure 1 The third schematic diagram of the primary optical element shown;

[0045] Figure 4 yes Figure 1 A top view of the primary optical element shown;

[0046] Figure 5 yes Figure 4 AA cross-section view;

[0047] Figure 6 yes Figure 1 A side view of the primary optical element shown;

[0048] Figure 7 yes Figure 6 BB cross-section;

[0049] Figure 8 This is one of the structural schematic diagrams of another specific embodiment of the primary optical element in this invention;

[0050] Figure 9 yes Figure 8 The second schematic diagram of the primary optical element shown;

[0051] Figure 10 yes Figure 8 The third schematic diagram of the primary optical element shown;

[0052] Figure 11 This is a schematic diagram of one specific embodiment of the primary optical element support in this invention;

[0053] Figure 12 yes Figure 11 The second schematic diagram of the primary optical element support structure is shown.

[0054] Figure 13 yes Figure 11 The third schematic diagram of the primary optical element support structure is shown.

[0055] Figure 14 yes Figure 11 The fourth schematic diagram of the primary optical element support structure is shown.

[0056] Figure 15 yes Figure 11 The fifth schematic diagram of the primary optical element support structure is shown.

[0057] Figure 16 yes Figure 8 The primary optical elements shown and Figure 11 The diagram shows the installation of the primary optical component bracket;

[0058] Figure 17 yes Figure 8 The primary optical elements shown and Figure 11 One of the front views of the primary optical element bracket after installation;

[0059] Figure 18 yes Figure 17 A magnified view of part C in the middle;

[0060] Figure 19 This is the near-beam beam pattern when the support plate of the primary optical element bracket does not have an outer extended cutoff line structure;

[0061] Figure 20 This is the near-beam beam pattern when an outer extended cutoff line structure is set on the support plate of the primary optical element bracket;

[0062] Figure 21 yes Figure 8 The primary optical elements shown and Figure 11 One of the top views of the primary optical element bracket after installation;

[0063] Figure 22 yes Figure 21 A magnified view of part D in the middle;

[0064] Figure 23 yes Figure 8 The primary optical elements shown and Figure 11 One of the schematic diagrams of the primary optical element bracket after installation;

[0065] Figure 24 yes Figure 8 The primary optical elements shown and Figure 11 The second top view of the primary optical element bracket after installation;

[0066] Figure 25 yes Figure 24 EE cross-section;

[0067] Figure 26 yes Figure 8 The primary optical elements shown and Figure 11 The third top view of the primary optical element bracket after installation;

[0068] Figure 27 yes Figure 26 NN cross-sectional view;

[0069] Figure 28 yes Figure 8 The primary optical elements shown and Figure 11 The second schematic diagram shows the structure of the primary optical element bracket after installation;

[0070] Figure 29 yes Figure 8 The primary optical elements shown and Figure 11 The second front view of the primary optical element bracket after installation;

[0071] Figure 30 yes Figure 29 FF cross-section;

[0072] Figure 31 This is one of the structural schematic diagrams of a specific embodiment of the secondary optical element support in this invention;

[0073] Figure 32 yes Figure 31 A magnified view of the central G region;

[0074] Figure 33 yes Figure 31 The second schematic diagram of the secondary optical element support structure is shown.

[0075] Figure 34 This is a schematic diagram of a specific embodiment of the optical component in this invention;

[0076] Figure 35 yes Figure 34 One of the rear views of the optical components shown;

[0077] Figure 36 yes Figure 35 A magnified view of the middle H section;

[0078] Figure 37 yes Figure 35 A magnified view of part I in the middle;

[0079] Figure 38 yes Figure 34 A top view of the optical components shown;

[0080] Figure 39 yes Figure 38 JJ sectional view;

[0081] Figure 40 yes Figure 34 The second rear view of the optical components shown;

[0082] Figure 41 yes Figure 40 KK sectional view;

[0083] Figure 42 This is a schematic diagram of the structure of the first specific embodiment of the vehicle lighting device in this invention;

[0084] Figure 43 yes Figure 42 A top view of the vehicle's lighting device shown;

[0085] Figure 44 yes Figure 43 LL section view;

[0086] Figure 45 This is one of the structural schematic diagrams of the second specific embodiment of the vehicle lighting device in this invention;

[0087] Figure 46 yes Figure 45 The second schematic diagram of the vehicle headlight lighting device shown;

[0088] Figure 47 yes Figure 45 The third schematic diagram of the vehicle lighting device shown;

[0089] Figure 48 yes Figure 45 A top view of the vehicle's lighting device shown;

[0090] Figure 49 yes Figure 48 MM cross-section;

[0091] Figure 50 yes Figure 45 An exploded view of the vehicle's lighting system.

[0092] Explanation of reference numerals in the attached figures

[0093] 1- Primary optical components;

[0094] 101-Light guide section; 1011-Side light guide post; 1012-Middle light guide post; 1013-Incident surface; 102-Blending light emitting section; 1021-Light emitting surface; 1022-Center cutoff line structure; 1023-50L dark area formation structure; 1024-Main light emitting surface; 1025-Secondary light emitting surface; 1026-Outer extension structure of cutoff line; 103-Primary optical element mounting section; 1031-Insertion plate hole; 1032-Slot; 1033-Limiting block; 1034-Upper and lower limiting surfaces of primary optical element; 1035-Left and right limiting surfaces of primary optical element; 1036-Forward movement limiting surface of primary optical element;

[0095] 2- Primary optical element support;

[0096] 201-Primary optical element housing cavity; 2011-Card block; 2012-Primary optical element rearward positioning surface; 202-Support plate; 2021-Outer extension cutoff line structure; 2022-Reinforcing structure; 203-Right truncated pyramidal through hole; 2031-Light guide post positioning hole; 204-Positioning pin; 205-Circuit board contact surface; 206-Guide hole; 207-Anti-sunlight focusing plate;

[0097] 3-Secondary optical elements;

[0098] 4-Secondary optical component support;

[0099] 401 - Primary optical component receiving cavity; 4011 - Receiving cavity forward movement limiting surface; 402 - Limiting cavity; 4021 - Receiving cavity upper and lower limiting surfaces; 4022 - Receiving cavity left and right limiting surfaces; 403 - Screw post; 404 - Guide pin;

[0100] 5 - Circuit board; 501 - Positioning hole;

[0101] 6-Radiator; 7-Low beam light source; 8-Screw;

[0102] a - The junction of the center cutoff line structure and the outer extended cutoff line structure; b - The light and dark cutoff lines; θ - The angle between the side light guide post and the adjacent middle light guide post. Detailed Implementation

[0103] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of the present invention, and the scope of protection of the present invention is not limited to the specific embodiments described below.

[0104] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "contact" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0105] It should be understood that the positional relationships indicated by terms such as "up," "top," "down," "bottom," "front," "rear," "left," and "right" are only for the convenience of describing the present invention and simplifying the description. Based on the primary optical element 1, "front" refers to the direction indicated by the light emission direction, "rear" refers to the opposite direction to "front," "left" refers to the left side along the light emission direction, and "right" refers to the right side along the light emission direction, which is the same as the left and right sides of the vehicle during normal driving. "Up" and "top" refer to the upper part along the light emission direction, and "down" and "bottom" refer to the lower part along the light emission direction. The terminology is based on the direction or positional relationship shown in the drawings and is only for the convenience of describing the present invention and simplifying the description. It does 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, and therefore should not be construed as a limitation of the present invention. In the present invention, the fusion function of the fusion light emission section 102 refers to the fusion of the light transmitted to the fusion light emission section 102 before it is transmitted to the light emission surface 1021.

[0106] The first aspect of this invention provides a primary optical element, see [link to previous document]. Figures 1 to 10 As shown, the device includes a primary optical element body, which includes a light guide section 101 and a fusion light emission section 102 arranged from back to front. The front end face of the fusion light emission section 102 is set as a light emission surface 1021. The light guide section 101 includes a plurality of light guide pillars arranged sequentially in the left-right direction. The thickness of the fusion light emission section 102 in the vertical direction is greater than the thickness of the light guide section 101 in the vertical direction. The fusion light emission section 102 can fuse the light transmitted to the fusion light emission section 102 by the plurality of light guide pillars and then emit it through the light emission surface 1021.

[0107] In this invention, the primary optical element 1 can be made of transparent materials such as silicone, PC, or PMMA, and is preferably made of silicone, so that the primary optical element 1 has the effects of high temperature resistance and high transmittance.

[0108] In the primary optical element 1 provided by this invention, see... Figure 9 The rear end face of the light guide column is formed as the light incident surface 1013. When applied to a vehicle lighting device, each light incident surface 1013 is provided with a corresponding light source (i.e., the low beam light source 7 below) at its rear end. The light emitted by the low beam light source 7 is incident into the light guide column through the corresponding light incident surface 1013 and transmitted to the fusion light output section 102 through the light guide column. Due to the increased thickness of the fusion light output section 102, the light transmitted from each light guide column to the fusion light output section 102 can not only be fused in the fusion light output section 102 to make the light transmitted to the light output surface 1021 more uniformly distributed, but also make the light emitted from the light output surface 1021 more diffused, which is beneficial to the softening of the light shape below the upper boundary of the low beam shape, thereby making the optical efficiency of the primary optical element 1 high and the low beam shape effect well formed.

[0109] In a first preferred embodiment of the primary optical element 1 of the present invention, see [link to previous embodiment]. Figures 1 to 7 The plurality of light guide pillars includes two side light guide pillars 1011 and at least one intermediate light guide pillar 1012. The at least one intermediate light guide pillar 1012 is arranged sequentially between the two side light guide pillars 1011 in a left-right direction. The outer surface of the side light guide pillar 1011 is configured to extend forward in a straight line from the rear end of the side light guide pillar 1011, and then curve outward to the rear side of the fused light-emitting part 102. The outer surface of the side light guide pillar 1011 specifically refers to the side of the side light guide pillar 1011 that is away from the intermediate light guide pillar 1012. For example, the outer surface of the side light guide pillar 1011 located on the left side is the left side surface of the side light guide pillar 1011. Multiple light guide pillars are arranged sequentially in the left-right direction, so that the primary optical element 1 can meet the structural design requirements of miniaturization and flattening of the headlight shape. At the same time, the outer side of the side light guide pillar 1011 is arranged to extend forward along a straight line from the rear end, and then bend outward along a curve to the rear side of the light-emitting part 102. This makes the outer contour of the side light guide pillar 1011 gradually bend to both sides, which can increase the illumination range on both sides of the low beam and improve the light shape effect.

[0110] In some preferred embodiments of the intermediate light guide 1012 of the present invention, the distance between the left and right sides of the intermediate light guide 1012 gradually increases from back to front, so that a light guide gap is formed between the intermediate light guide 1012 and its adjacent light guides. This also allows as much of the light incident on the light-incident surface 1013 of the intermediate light guide 1012 as possible to undergo total internal reflection and propagate forward. In this case, the inner surface of the side light guide 1011 can also be configured to be inclined from back to front, so that wedge-shaped light guide gaps are formed between adjacent intermediate light guides 1012 and between side light guides 1011 and their adjacent intermediate light guides 1012, to prevent light leakage between the light guides and reduce optical efficiency.

[0111] In a preferred embodiment, the angle formed by the left and right sides of the intermediate light guide 1012 is 2°-4°, and the gap angle θ between the side light guide 1011 and the intermediate light guide 1012 adjacent to it, i.e., the angle of the light guide gap between the side light guide 1011 and its adjacent intermediate light guide 1012, is 5°-10°, so as to improve the efficiency of total internal reflection of the light incident on the side light guide 1011 and the intermediate light guide 1012 in the corresponding light guides, and further improve the optical efficiency of the light in the primary optical element 1.

[0112] In a second preferred embodiment of the primary optical element 1 of the present invention, the light-emitting surface 1021 is configured as a convex curved surface, so that the emitted light rays are more focused, thereby improving the optical efficiency of the primary optical element 1.

[0113] In the preferred case, see Figure 1 , Figure 2 , Figure 21 and Figure 22 The bottom of the light-emitting surface 1021 has a cutoff line structure, which includes a central cutoff line structure 1022 and outer extension structures 1026 located on both sides of the central cutoff line structure 1022. The outer extension structures 1026 are smoothly connected to the central cutoff line structure 1022, so that the light emitted from the light-emitting surface 1021, after being projected by the secondary optical element 3 (e.g., a lens) as described below, has a bright and dark cutoff line b on the light pattern. The structure can be designed according to the requirements of the light pattern. Specifically, when the bottom of the light-emitting surface 1021 has a cutoff line structure, the central cutoff line structure 1022 is used to form the upper boundary of the main near-beam light pattern in the middle of the near-beam light pattern, that is, the middle part of the bright and dark cutoff line b of the light pattern. The corresponding upper boundary formed is a cutoff line shape with steps on both sides and connected by oblique lines.

[0114] More preferably, a recess is provided at the bottom of the front end of the fusion light-emitting part 102 to serve as a 50L dark zone forming structure 1023, reducing the light rays incident on the 50L dark zone and controlling the brightness of the 50L dark zone so that the near beam shape meets regulatory requirements.

[0115] In this invention, the light guide 101 can be configured to be connected to the fusion light emitting part 102 at the middle of the rear end along the vertical direction; or it can be configured to have the bottom surface of the light guide 101 flush with the bottom surface of the fusion light emitting part 102, so that when a cutoff line structure is formed at the bottom of the light emitting surface 1021, the shape and position of the light and dark cutoff line b on the formed near-light pattern can be guaranteed.

[0116] When a cutoff line structure is formed at the bottom of the light-emitting surface 1021, in order to improve the dispersion phenomenon at the light-dark cutoff line b and enhance the driver's visual experience, some preferred embodiments of the light-emitting surface 1021 in this invention are described below. Figure 5 The light-emitting surface 1021 includes a main light-emitting surface 1024 and a secondary light-emitting surface 1025 located below the main light-emitting surface 1024. The secondary light-emitting surface 1025 is configured to gradually slope downwards and backwards from top to bottom, and a cutoff line structure is provided on the secondary light-emitting surface 1025. In this case, the secondary light-emitting surface 1025 allows light rays passing through the cutoff line structure to enter the secondary optical element 3 at an upward and forward angle, minimizing the possibility of this light escaping from the lower half of the secondary optical element 3. This improves the color of the formed bright and dark cutoff line b, enhancing the driver's visual experience. Preferably, a transition surface is provided between the main light-emitting surface 1024 and the secondary light-emitting surface 1025. The transition surface is preferably an arc surface to smoothly connect the main light-emitting surface 1024 and the secondary light-emitting surface 1025.

[0117] As a relatively preferred embodiment of the primary optical element 1 in this invention, the primary optical element 1 includes a primary optical element body, which includes a light guide portion 101 and a fusion light emitting portion 102 arranged from back to front. The thickness of the fusion light emitting portion 102 in the vertical direction is greater than the thickness of the light guide portion 101 in the vertical direction. The front end face of the fusion light emitting portion 102 is set as the light emitting surface 1021. The light guide portion 101 includes three light guide pillars arranged sequentially in the left-right direction. The three light guide pillars are two side light guide pillars 1011 and one middle light guide pillar 1012. The rear end faces of the side light guide pillars 1011 and the middle light guide pillar 1012 are formed as light incident surfaces 1013. The outer surface of the side light guide pillars 1011 is configured to extend forward in a straight line from the rear end of the side light guide pillar 1011, and then bend outward in a curve to the rear side of the fusion light emitting portion 102. The middle light guide pillar 1011... The distance between the left and right sides of the light column 1012 gradually increases from back to front, forming an angle of 2°-4°. The angle between the side light guide column 1011 and the middle light guide column 1012 is 5°-10°. The light-emitting surface 1021 is a convex curved surface. The light-emitting surface 1021 includes a main light-emitting surface 1024 and a secondary light-emitting surface 1025 located below the main light-emitting surface 1024. The secondary light-emitting surface 1025 is set to gradually slope from top to bottom and backward. A cutoff line structure is provided at the bottom of the secondary light-emitting surface 1025. The cutoff line structure includes a central cutoff line structure 1022 and outer extension structures 1026 on both sides of the central cutoff line structure 1022. The outer extension structures 1026 are smoothly connected to the central cutoff line structure 1022. A 50L dark area forming structure 1023 is provided at the bottom of the front end of the fused light-emitting part 102.

[0118] The light emitted by the near light source 7 corresponding to the primary optical element 1 is incident on the side light guide 1011 and the middle light guide 1012 through the corresponding light incident surface 1013, and is transmitted to the fusion light emission section 102 through the light guide. The fusion light emission section 102 causes the light transmitted from each light guide to the fusion light emission section 102 to be fused in the fusion light emission section 102 and then emitted from the light emission surface 1021. At the same time, through the action of the cut-off line structure, the light emitted from the light emission surface 1021 forms a bright and dark cut-off line. The 50L dark area forming structure 1023 can effectively control the brightness of the 50L dark area so that the formed near light shape meets the regulatory requirements.

[0119] When the primary optical element 1 of the present invention is installed in a vehicle lighting device, it can be connected and fixed with other components in the vehicle lighting device using a conventional installation method. Preferably, the primary optical element 1 is installed on the primary optical element bracket 2. In this case, the primary optical element 1 and the primary optical element bracket 2 form a primary optical assembly.

[0120] A second aspect of the present invention provides a primary optical element holder 2 for mounting a primary optical element 1, see [link to previous section]. Figures 11 to 15 The primary optical element support 2 includes a primary optical element body receiving cavity 201. The primary optical element support 2 can be inserted into the primary optical element 1, so that the primary optical element 1 or the primary optical element body is installed in the primary optical element body receiving cavity 201 to form a primary optical assembly. At this time, the primary optical element 1 can be a primary optical element structure of various forms, such as a condenser or an optical element structure having an entrance section, a transmission section, and a light exit section. When the primary optical element 1 has the structure described above in this invention, when it is installed with the primary optical element support 2, the primary optical element body is installed in the primary optical element body receiving cavity 201.

[0121] In a first preferred embodiment of the primary optical element bracket 2 of the present invention, a support plate 202 is provided inside the primary optical element body receiving cavity 201, so that the bottom of the fused light-emitting part 102 is supported on the support plate 202 when the primary optical element body is installed in the primary optical element body receiving cavity 201. This makes the primary optical component structure formed by the insertion of the primary optical element 1 and the primary optical element bracket 2 more stable, thereby improving the structural stability and light pattern stability of the primary optical element 1 during installation and use, and making the structure between the components of the vehicle lighting device more compact and the positional accuracy higher.

[0122] In a preferred embodiment, the primary optical element 1 includes a primary optical element body, which, from back to front, includes a light guide section 101 with multiple light guide pillars and a light fusion and emission section 102. (See [reference]). Figures 11 to 15The primary optical element housing cavity 201 has multiple frustum-shaped through holes 203 at its rear end, with the cross-sectional perimeter gradually decreasing from front to back. The rear opening of each frustum-shaped through hole 203 is configured as a light guide post limiting hole 2031, which can be used to limit the position of the light guide post. The light guide post can be inserted into its corresponding limiting hole 2031. When the primary optical element bracket 2 is inserted into the primary optical element 1, not only is the front end supported by the support plate 202, but the light guide post can also be inserted through the corresponding frustum-shaped through hole 203 into the limiting hole 2031 for positioning. This ensures the positional accuracy of the rear end of the light guide post relative to the light source, further improving the installation positional accuracy and reliability of the primary optical element 1, increasing optical efficiency, and improving the illumination effect of the vehicle headlight. It is understood that the primary optical element bracket 2 provided by this invention is not only applicable to the primary optical element 1 described in this invention, but also to other primary optical element structures having a light guide section 101 and a fused light-emitting section 102.

[0123] In this invention, the frustum-shaped through-hole 203 is designed to facilitate the insertion of a light guide post through the corresponding frustum-shaped through-hole 203 into the light guide post limiting hole 2031 for positioning when the primary optical element body is inserted into the primary optical element body receiving cavity 201. Preferably, the number of frustum-shaped through-holes 203 is greater than or equal to the number of light guide posts.

[0124] During the use of vehicle lights, secondary optical elements 3 are typically installed. When sunlight shines on these secondary optical elements 3, it focuses and generates high temperatures inside the vehicle light. Since most of the internal components of the vehicle light are made of plastic, they can melt under high temperatures, damaging the light and posing a safety hazard. Therefore, a sun-shielding focusing plate 207 can be installed in the easily focused areas inside the vehicle light to reduce the heat conducted to the easily meltable components, lowering the risk of damage and improving safety. In a second preferred embodiment of the primary optical element bracket 2 of this invention, the primary optical element bracket 2 is provided with a sun-shielding focusing plate 207. In this case, the sun-shielding focusing plate 207 is preferably made of a metal material, such as ADC material, which is lightweight, economical, and has good thermal conductivity.

[0125] More preferably, see Figure 12 The bottom of the support plate 202 is provided with a reinforcing structure 2022 to enhance the structural strength of the support plate 202, thereby improving the support stability of the fused light-emitting part 102.

[0126] As a relatively preferred embodiment of the primary optical element support 2 in this invention, the primary optical element support 2 is suitable for a primary optical element 1 including a light guide section 101 and a fusion light emitting section 102. The light guide section 101 has multiple light guide posts. The primary optical element support 2 includes a primary optical element body receiving cavity 201 for inserting the primary optical element body and a support plate 202 located within the primary optical element body receiving cavity 201. The rear end of the primary optical element body receiving cavity 201 is provided with multiple positive cross-sectional perimeters that gradually decrease from front to back. A frustum-shaped through hole 203 is provided, and the rear opening of each frustum-shaped through hole 203 is set as a light guide post limiting hole 2031 that can limit the light guide post. The number of frustum-shaped through holes 203 is greater than or equal to the number of light guide posts. A solar anti-sunlight focusing plate 207 is provided on the primary optical element bracket 2. A locking block 2011 is provided on the outside of the primary optical element main body receiving cavity 201. A primary optical element rearward movement limiting surface 2012 is formed at the front end of the primary optical element main body receiving cavity 201. A reinforcing structure 2022 is provided at the bottom of the support plate 202.

[0127] The aforementioned primary optical element bracket 2 can install the corresponding primary optical element body in the primary optical element body receiving cavity 201, so that the fusion light-emitting part 102 at the front end of the primary optical element 1 is supported on the support plate 202, and the rear end of the light guide post is inserted into the light guide post limiting hole 2031 for limiting, so that the installation structure of the primary optical element 1 has good stability and high positional accuracy, thereby improving optical efficiency and improving the lighting effect of the vehicle lamp.

[0128] A third aspect of the present invention provides a primary optical assembly, comprising a primary optical element 1 as described in any of the above-described technical solutions and a primary optical element bracket 2 for mounting the primary optical element 1. When mounting the primary optical element 1 using the primary optical element bracket 2, the primary optical element bracket 2 can be a mounting bracket from the prior art. However, to further improve the structural stability and optical pattern stability of the primary optical element 1 during installation and use, the primary optical element bracket 2 is preferably the primary optical element bracket 2 described in any of the above-described technical solutions of the present invention.

[0129] To facilitate the installation and connection of the primary optical element 1 and the primary optical element support 2, as a first preferred embodiment of the primary optical assembly in this invention, see [link to relevant documentation]. Figures 16 to 30 , combined Figures 8 to 10 The primary optical element 1 also includes a primary optical element mounting portion 103 connected to the primary optical element body. The left and right sides and top surface of the fusion light-emitting portion 102 are connected to the primary optical element mounting portion 103, and an insertion hole 1031 is formed between the bottom surface and the primary optical element mounting portion 103. Figures 11 to 15A support plate 202 is provided inside the primary optical element body receiving cavity 201. The support plate 202 can be inserted into the insertion hole 1031, thereby supporting the fused light-emitting part 102 on the support plate 202. When the primary optical element body is inserted into the primary optical element body receiving cavity 201 from the front side of the primary optical element bracket 2, the support plate 202 is correspondingly inserted into the insertion hole 1031, and the fused light-emitting part 102 is supported on the support plate 202, making the installation connection between the primary optical element 1 and the primary optical element bracket 2 more stable, thereby improving the optical stability of the primary optical element 1.

[0130] It is understood that the installation and connection method of the primary optical element 1 and the primary optical element support 2 in the primary optical assembly of the present invention can be applied to primary optical elements 1 and / or primary optical element support 2 with various structures, and is not limited to the structural form described in the present invention. Specifically, the primary optical assembly may include a primary optical element 1 and a primary optical element bracket 2 for mounting the primary optical element 1. The primary optical element 1 includes a primary optical element body and a primary optical element mounting portion 103 connected to the primary optical element body. The primary optical element body includes a light guide portion 101 and a light emitting portion arranged from back to front. The front end surface of the light emitting portion is set as a light emitting surface 1021. The left, right, and top surfaces of the light emitting portion are connected to the primary optical element mounting portion 103, and an insertion hole 1031 is formed between the bottom surface and the primary optical element mounting portion 103. The primary optical element bracket 2 includes a primary optical element body receiving cavity 201 for accommodating the primary optical element body. A support plate 202 is provided inside the primary optical element body receiving cavity 201 so that when the primary optical element body is installed in the primary optical element body receiving cavity 201, the support plate 202 is inserted into the insertion hole 1031, and the light emitting portion is supported on the support plate 202. At this time, the connection between the primary optical element 1 and the primary optical element bracket 2 can achieve a stable installation and fixation of the two, improving the optical stability of the primary optical element 1. Therefore, the preferred structural forms of the insert hole 1031, support plate 202, primary optical element body receiving cavity 201 and primary optical element mounting part 103 described below are also applicable to this primary optical assembly.

[0131] In this invention, see Figure 17 and Figure 18 The lower end of the insertion hole 1031 is set as the support plate contact surface, which contacts the bottom surface of the support plate 202, and the structure of the support plate contact surface is designed to adapt to the bottom surface of the support plate 202. For example, the support plate 202 is designed with a structure that is low in the middle and high on both sides, and correspondingly, the support plate contact surface is also designed with a structure that is low in the middle and high on both sides, so as to make the insertion structure between the support plate 202 and the insertion hole 1031 more stable.

[0132] In a preferred embodiment, a locking block 2011 is provided on the outer side of the primary optical element housing cavity 201, and a locking slot 1032 matching the locking block 2011 is provided on the primary optical element mounting portion 103. The engagement of the locking block 2011 and the locking slot 1032 restricts the forward movement of the primary optical element 1 relative to the primary optical element support 2, making displacement relative to the primary optical element support 2 less likely. Accordingly, see... Figure 26 and Figure 27 The primary optical element body receiving cavity 201 has a primary optical element rearward movement limiting surface 2012 formed at its front end, which abuts against the inner end face of the primary optical element mounting part 103 to limit the rearward movement of the primary optical element 1 relative to the primary optical element support 2. The slots 1032 can be specifically configured to be distributed on each side wall of the primary optical element mounting part 103, and corresponding locking blocks 2011 can be provided on the outside of the primary optical element body receiving cavity 201 to improve the structural stability of the primary optical element 1 after it is installed with the primary optical element support 2.

[0133] Based on the second preferred embodiment of the primary optical element 1 described above, see [link to previous text] Figure 21 and Figure 22 The bottom of the light-emitting surface 1021 has a central cutoff line structure 1022 and cutoff line outer extension structures 1026 located on both sides of the central cutoff line structure 1022. As a second preferred embodiment of the primary optical component in this invention, the front end surface of the support plate 202 is set as a concave curved surface, and the front ends of the top surface of the support plate 202 are respectively provided with outer extension cutoff line structures 2021. The outer extension cutoff line structures 2021 can be connected with the central cutoff line structure 1022 to form a combined cutoff line structure, replacing the cutoff line structure formed by the central cutoff line structure 1022 and the cutoff line outer extension structures 1026. Since the light-emitting surface 1021 of the primary optical element 1 is a convex curved surface, under normal circumstances, the two sides of the central cutoff line structure 1022 extend outward to form the cutoff line outer extension structures 1026. The cooperation between the central cutoff line structure 1022 and the cutoff line outer extension structures 1026 makes it easy for the bright and dark cutoff lines b on the near-light beam to appear as shown in the figure. Figure 19 The phenomenon of unevenness and raised sides is shown. Therefore, the outer side of the center cutoff line structure 1022 needs to be set as a concave curve from front to back to make the two sides of the light and dark cutoff line b relatively flat. The present invention sets an outer extended cutoff line structure 2021 with a concave curve shape at the front end of the support plate 202 used to support the fusion light-emitting part 102 of the primary optical element 1 on the primary optical element bracket 2. That is, the top two ends of the front end surface of the support plate 202 are used as the outer extended cutoff line structure 2021, which is connected with the center cutoff line structure 1022 to form a combined cutoff line structure, so as to form a... Figure 20 The light and dark cutoff lines on both sides are relatively flat.

[0134] In a preferred embodiment, an aluminum-plated layer is provided on the top surface of the support plate 202 in the area between the outer extension structure 1026 and the outer extension cutoff structure 2021 of the cutoff line, so as to improve the reflectivity of light irradiated in this area, so that the light irradiated in this area continues to propagate forward after being reflected, thereby improving optical efficiency.

[0135] As a relatively preferred embodiment of the primary optical component in this invention, it includes a primary optical element 1 and a primary optical element support 2. The primary optical element 1 includes a primary optical element body and a primary optical element mounting portion 103 connected to the primary optical element body. The primary optical element body includes a light guide portion 101 arranged from back to front and a light emitting portion 102. The thickness of the light emitting portion 102 in the vertical direction is greater than the thickness of the light guide portion 101 in the vertical direction. The front end surface of the light emitting portion 102 is set as a light emitting surface 1021. The light guide portion 101 includes a light emitting surface 1021 along the vertical direction. Three light guide pillars are arranged sequentially in the left-right direction. These three pillars consist of two side light guide pillars 1011 and one central light guide pillar 1012. The rear end faces of the side light guide pillars 1011 and the central light guide pillar 1012 are formed as light incident surfaces 1013. The outer surface of the side light guide pillar 1011 is configured to extend forward along a straight line from its rear end, then curve outwards to the rear side of the fused light-emitting section 102. The distance between the left and right sides of the central light guide pillar 1012 gradually increases from back to front, forming an angle of 2°-4°. The angle between the side light guide post 1011 and the middle light guide post 1012 is 5°-10°. The light emitting surface 1021 is a convex curved surface. The light emitting surface 1021 includes a main light emitting surface 1024 and a secondary light emitting surface 1025 located below the main light emitting surface 1024. The secondary light emitting surface 1025 is designed to gradually slope downwards and backwards from top to bottom. A cutoff line structure is provided at the bottom of the secondary light emitting surface 1025. The cutoff line structure includes a central cutoff line structure 1022 and outer extension structures 1026 located on both sides of the central cutoff line structure 1022. The outer extension structure 1026 is smoothly connected to the center cutoff line structure 1022. A 50L dark area forming structure 1023 is provided at the bottom of the front end of the fusion light-emitting part 102. The left and right sides and the top surface of the fusion light-emitting part 102 are connected to the primary optical element mounting part 103. An insertion plate hole 1031 is formed between the bottom surface and the primary optical element mounting part 103. The lower end of the insertion plate hole 1031 is set as a support plate contact surface that matches the bottom surface structure of the support plate 202. A slot 1032 that matches the card block 2011 is provided on the primary optical element mounting part 103.

[0136] The primary optical element support 2 includes a primary optical element body receiving cavity 201 for inserting the primary optical element body and a support plate 202 located within the primary optical element body receiving cavity 201. The rear end of the primary optical element body receiving cavity 201 is provided with multiple frustum-shaped through holes 203 whose cross-sectional perimeter gradually decreases from front to back. The rear opening of each frustum-shaped through hole 203 is configured as a light guide post limiting hole 2031 capable of limiting the position of the light guide post. The number of frustum-shaped through holes 203 is greater than or equal to the number of light guide posts. The primary optical element support 2 is provided with a solar light focusing protection device. The focal plate 207 has a locking block 2011 on the outside of the primary optical element main body receiving cavity 201. The front end of the primary optical element main body receiving cavity 201 has a primary optical element rearward movement limiting surface 2012. The bottom of the support plate 202 has a reinforcing structure 2022. The front end surface of the support plate 202 is set as a concave curved surface. The front ends of the top surface of the support plate 202 have outer extension cut-off line structures 2021 on both sides. The area on the top surface of the support plate 202 between the outer extension structure 1026 and the outer extension cut-off line structure 2021 is provided with an aluminum plating layer.

[0137] The aforementioned primary optical component installation process is as follows: the primary optical element bracket 2 is inserted into the primary optical element 1 from the rear side, so that the primary optical element body receiving cavity 201 is inserted into the inner cavity of the primary optical element mounting part 103 from the rear side of the primary optical element 1. The primary optical element body is installed in the primary optical element body receiving cavity 201. The support plate 202 is inserted into the insertion plate hole 1031, so that the bottom surface of the support plate 202 is in contact with the support plate contact surface, and the top surface is in contact with the bottom surface of the fusion light-emitting part 102, so that the outer side extends... The extended cutoff line structure 2021 and the center cutoff line structure 1022 have a junction a between the center cutoff line structure and the outer extended cutoff line structure to form a combined cutoff line structure. At the same time, the card block 2011 is inserted into the corresponding card slot 1032. The primary optical element rearward limiting surface 2012 abuts against the inner end face of the primary optical element mounting part 103. The rear ends of the side light guide post 1011 and the middle light guide post 1012 are respectively inserted from the front end of the corresponding frustum-shaped through hole 203 and limited on the light guide post limiting hole 2031 to form a primary optical component.

[0138] Based on the aforementioned primary optical element 1, primary optical element bracket 2, and the primary optical assembly formed therefrom, the primary optical element 1 can be installed in a vehicle lighting device as a primary optical assembly. Preferably, in accordance with the requirements for miniaturization and flattening of vehicle lighting designs and the market demand for small vehicle lighting devices, a fourth aspect of the present invention provides an optical assembly, see [link to previous section]. Figures 31 to 41The primary optical element 1, the primary optical element bracket 2, the secondary optical element 3, and the secondary optical element bracket 4 are installed as a single unit, making the structure between the components of the vehicle lighting device more compact and the positional accuracy higher.

[0139] As a first preferred embodiment of the optical component in this invention, see [link to previous document]. Figures 31 to 33 The secondary optical element support 4 is provided with a primary optical component receiving cavity 401 for accommodating the primary optical component. The secondary optical element 3 is installed at the front end of the primary optical component receiving cavity 401. The primary optical element 1 and the primary optical component receiving cavity 401 are provided with positioning restriction structures to restrict the degree of freedom of the primary optical component when it is placed in the primary optical component receiving cavity 401, thereby improving the structural stability and relative positional accuracy of the connection between the primary optical component and the secondary optical element support 4, and further improving the relative positional accuracy between the primary optical element 1 and the secondary optical element 3, so as to improve the near-beam beam pattern effect.

[0140] It is understood that the installation and connection method of the primary optical component and the secondary optical element support 4 in the optical assembly of the present invention can be applied to primary optical components and / or secondary optical element support 4 with various structures, and is not limited to the structural form described in the present invention. The primary optical component can be formed by inserting the primary optical element support 2 and the primary optical element 1. Specifically, the optical assembly may include a primary optical element 1, a secondary optical element 3, a primary optical element bracket 2 for mounting the primary optical element 1, and a secondary optical element bracket 4 for mounting the secondary optical element 3. The primary optical element 1 includes a primary optical element body, which includes a light guide portion 101 and a light emitting portion arranged from back to front. The front end face of the light emitting portion is configured as a light emitting surface 1021. The primary optical element bracket 2 includes a primary optical element body receiving cavity 201. The primary optical element bracket 2 can be inserted into the primary optical element 1 so that the primary optical element body is installed in the primary optical element body receiving cavity 201 to form a primary optical assembly. The secondary optical element bracket 4 is provided with a primary optical assembly receiving cavity 401 for accommodating the primary optical assembly. The secondary optical element 3 is installed at the front end of the primary optical assembly receiving cavity 401. The primary optical element 1 and the primary optical assembly receiving cavity 401 are provided with positioning restriction structures to restrict the degree of freedom of the primary optical assembly when it is placed in the primary optical assembly receiving cavity 401. At this point, the positioning constraint structure can improve the structural stability and relative positional accuracy of the connection between the primary optical component and the secondary optical element support 4, thereby improving the relative positional accuracy between the primary optical element 1 and the secondary optical element 3, and thus improving the formed near-beam beam pattern effect. Therefore, the preferred structural form of the positioning constraint structure described below is also applicable to this optical component.

[0141] In this invention, the positioning and limiting structure can be any structure that cooperates with and limits the connection between the primary optical element 1 and the primary optical assembly receiving cavity 401. Preferably, the positioning and limiting structure includes a limiting cavity 402 located on the primary optical assembly receiving cavity 401 and a limiting block 1033 located on the primary optical element 1, with the limiting cavity 402 and the limiting block 1033 matching. When the primary optical assembly is placed inside the primary optical assembly receiving cavity 401, the limiting block 1033 is engaged within the corresponding limiting cavity 402. Since the material of the primary optical element mounting part 103 is generally silicone, the limiting block 1033 is preferably set as a square shape with a certain thickness, making the positioning of the limiting block 1033 and the limiting cavity 402 more accurate. If the thickness of the limiting block 1033 is too thin, it is prone to deformation, which is not conducive to its positioning and installation. The length, width, and thickness of the limiting block 1033 are preferably set to be greater than or equal to 2mm. For example, it can be set to a length (vertical direction) of about 7.5mm, a width (horizontal direction) of about 5mm, and a thickness (front and back direction) of about 4mm.

[0142] Specifically, see Figure 8 The limiting blocks 1033 are located on the left and right sides of the front end of the primary optical element 1 to make the limiting effect on the primary optical component more balanced and the limiting installation accuracy between the primary optical component and the secondary optical element support 4 is higher. When the primary optical element 1 includes the primary optical element mounting part 103, the limiting blocks 1033 are set to be located on the left and right sides of the front end of the primary optical element mounting part 103.

[0143] Based on the limiting block 1033 and the limiting cavity 402, the positioning and limiting structure may also include the following structures: See Figure 8 and Figure 33 The upper and lower end faces of the limiting block 1033 are formed as the upper and lower limiting surfaces 1034 of the primary optical element, and the outer surface is formed as the left and right limiting surfaces 1035 of the primary optical element. The inner wall of the limiting cavity 402 is provided with a receiving cavity upper and lower limiting surface 4021 corresponding to the upper and lower limiting surfaces 1034 of the primary optical element and a receiving cavity left and right limiting surface 4022 corresponding to the left and right limiting surfaces 1035 of the primary optical element. The outer surface of the limiting block 1033 specifically refers to the left side of the limiting block 1033 located on the left and the right side of the limiting block 1033 located on the right. When the primary optical component is installed in the receiving cavity 401 of the primary optical component, while the limiting block 1033 is inserted into the limiting cavity 402, the upper and lower limiting surfaces 1034 of the primary optical element abut against the upper and lower limiting surfaces 4021 of the receiving cavity, and the left and right limiting surfaces 1035 of the primary optical element abut against the left and right limiting surfaces 4022 of the receiving cavity, so as to restrict the degree of freedom of the primary optical component in the vertical and horizontal directions.

[0144] More specifically, the positioning constraint structure may also include the following structures: See Figure 8 and Figure 32 The primary optical element 1 has a primary optical element forward movement limiting surface 1036 located on the upper and / or lower side of the limiting block 1033 at its front end. The primary optical component receiving cavity 401 has a receiving cavity forward movement limiting surface 4011 that matches the primary optical element forward movement limiting surface 1036 at its rear end. This is so that when the primary optical component is installed in the primary optical component receiving cavity 401, the primary optical element forward movement limiting surface 1036 abuts against the receiving cavity forward movement limiting surface 4011 to limit the degree of freedom of the primary optical component to move forward.

[0145] As a second preferred embodiment of the optical component in this invention, see [link to relevant documentation]. Figures 34 to 37 The secondary optical element support 4 has a guide pin 404 at its rear end, and the primary optical element support 2 has a guide hole 206 that matches the guide pin 404, so as to facilitate quick guidance and pre-positioning when installing the primary optical component with the secondary optical element support 4. Preferably, after installation, the guide hole 206 and the guide pin 404 do not fit together and have a certain gap, so that the guide hole 206 and the guide pin 404 only serve the purpose of guidance and pre-positioning, and do not serve the purpose of precise positioning.

[0146] As a relatively preferred embodiment of the optical component in this invention, it includes a primary optical element 1, a primary optical element support 2 for mounting the primary optical element 1, a secondary optical element 3, and a secondary optical element support 4 for mounting the secondary optical element 3.

[0147] The primary optical element 1 includes a primary optical element body and a primary optical element mounting part 103 connected to the primary optical element body. The primary optical element body includes a light guide part 101 and a fusion light emitting part 102 arranged from back to front. The thickness of the fusion light emitting part 102 in the vertical direction is greater than the thickness of the light guide part 101 in the vertical direction. The front end surface of the fusion light emitting part 102 is set as the light emitting surface 1021. The light guide part 101 includes three light guide pillars arranged sequentially in the left-right direction. The three light guide pillars are two side light guide pillars 1011 and one middle light guide pillar 1012. The side light guide pillars 1011 and the middle light guide pillar 1012... The rear end face is formed as the light-incident surface 1013. The outer surface of the side light guide 1011 is configured to extend forward along a straight line from the rear end of the side light guide 1011, and then bend outward along a curve to the rear side of the fused light-emitting part 102. The distance between the left and right sides of the middle light guide 1012 gradually increases from back to front, forming an angle of 2°-4°. The angle of the light guide gap between the side light guide 1011 and the middle light guide 1012 is 5°-10°. The light-emitting surface 1021 is configured as a forward-convex curved surface. The light-emitting surface 1021 includes a main light-emitting surface 1024 and a surface located below the main light-emitting surface 1024. The secondary light-emitting surface 1025 is configured to gradually slope downwards and backwards from top to bottom. A cutoff line structure is provided at the bottom of the secondary light-emitting surface 1025. The cutoff line structure includes a central cutoff line structure 1022 and outer extension structures 1026 located on both sides of the central cutoff line structure 1022. The outer extension structures 1026 are smoothly connected to the central cutoff line structure 1022. A 50L dark area forming structure 1023 is provided at the bottom of the front end of the fusion light-emitting section 102. The left and right sides and top surface of the fusion light-emitting section 102 are connected to the primary optical element mounting section 103, and the bottom surface is connected to the primary optical element mounting section 103. An insertion hole 1031 is formed between the mounting parts 103. The lower end of the insertion hole 1031 is set as a support plate contact surface that matches the bottom surface structure of the support plate 202. A slot 1032 that matches the card block 2011 is provided on the primary optical element mounting part 103. Limiting blocks 1033 are provided on the left and right sides of the front end of the primary optical element mounting part 103. The upper and lower end surfaces of the limiting block 1033 are formed as the upper and lower limiting surfaces 1034 of the primary optical element, and the outer side is formed as the left and right limiting surfaces 1035 of the primary optical element. The upper and lower sides of the limiting block 1033 are respectively provided with the forward movement limiting surfaces 1036 of the primary optical element.

[0148] The primary optical element support 2 includes a primary optical element body receiving cavity 201 for inserting the primary optical element body and a support plate 202 located within the primary optical element body receiving cavity 201. The rear end of the primary optical element body receiving cavity 201 is provided with multiple frustum-shaped through holes 203 whose cross-sectional perimeter gradually decreases from front to back. The rear opening of each frustum-shaped through hole 203 is configured as a light guide post limiting hole 2031 capable of limiting the light guide post. The number of frustum-shaped through holes 203 is greater than or equal to the number of light guide posts. A solar anti-sunlight focusing plate 207 is provided on the primary optical element support 2. A locking block 2011 is provided on the outside of the body receiving cavity 201. A primary optical element rearward positioning surface 2012 is formed at the front end of the primary optical element body receiving cavity 201. A reinforcing structure 2022 is provided at the bottom of the support plate 202. The front end surface of the support plate 202 is set as an inward curved surface. An outer extension cutoff line structure 2021 is provided on both sides of the front end of the top surface of the support plate 202. An aluminum plating layer is provided in the area between the outer extension structure 1026 and the outer extension cutoff line structure 2021 on the top surface of the support plate 202. Guide holes 206 are provided on the left and right sides of the primary optical element bracket 2.

[0149] The secondary optical element support 4 is provided with a primary optical component receiving cavity 401 for accommodating the primary optical component. The secondary optical element 3 is installed at the front end of the primary optical component receiving cavity 401. The rear end of the primary optical component receiving cavity 401 is provided with a limiting cavity 402. The inner wall of the limiting cavity 402 is provided with a receiving cavity upper and lower limiting surface 4021 corresponding to the upper and lower limiting surface 1034 of the primary optical element and a receiving cavity left and right limiting surface 4022 corresponding to the receiving cavity left and right limiting surface 1035 of the primary optical element. The rear end surface of the primary optical component receiving cavity 401 is provided with a receiving cavity forward moving limiting surface 4011 matching the primary optical element forward moving limiting surface 1036. The rear end of the secondary optical element support 4 is provided with a guide pin 404 matching the guide hole 206.

[0150] The installation process for the optical components provided above is as follows:

[0151] First, the primary optical element bracket 2 is inserted into the primary optical element 1 from the rear side, so that the primary optical element body receiving cavity 201 is inserted into the inner cavity of the primary optical element mounting part 103 from the rear side of the primary optical element 1. The primary optical element body is installed in the primary optical element body receiving cavity 201. The support plate 202 is inserted into the insertion plate hole 1031, so that the bottom surface of the support plate 202 is in contact with the support plate contact surface and the top surface is in contact with the bottom surface of the fusion light-emitting part 102, so that the outer extension cutoff line is connected. Structure 2021 and center cutoff line structure 1022 have a junction a of center cutoff line structure and outer extended cutoff line structure to form a combined cutoff line structure. At the same time, the card block 2011 is inserted into the corresponding card slot 1032. The primary optical element rearward limiting surface 2012 abuts against the inner end face of the primary optical element mounting part 103. The rear ends of the side light guide post 1011 and the middle light guide post 1012 are respectively inserted from the front end of the corresponding frustum-shaped through hole 203 and limited on the light guide post limiting hole 2031 to form a primary optical component.

[0152] The second step involves inserting the primary optical component into the primary optical component receiving cavity 401 from the rear end of the secondary optical component support 4, so that the limiting block 1033 is inserted into the corresponding limiting cavity 402. The upper and lower limiting surfaces 1034 of the primary optical component are in contact with the upper and lower limiting surfaces 4021 of the corresponding receiving cavity, the left and right limiting surfaces 1035 of the primary optical component are in contact with the left and right limiting surfaces 4022 of the corresponding receiving cavity, and the forward moving limiting surface 1036 of the primary optical component is in contact with the forward moving limiting surface 4011 of the corresponding receiving cavity. At the same time, the guide pin 404 is inserted into the corresponding guide hole 206. Then, the secondary optical component 3 is installed at the front end of the primary optical component receiving cavity 401 to form an optical component.

[0153] The fifth aspect of this invention provides a vehicle lighting device, including a low beam source 7 and the optical components described in any of the above-mentioned technical solutions, wherein the low beam source 7, the primary optical element 1, and the secondary optical element 3 are arranged sequentially from back to front. Typically, the low beam source 7 and the light guide post are arranged in a one-to-one correspondence.

[0154] As a first preferred embodiment of the vehicle lighting device in this invention, see [link to previous document]. Figures 42 to 50The vehicle lighting device also includes a circuit board 5, with a low beam light source 7 mounted on the circuit board 5. A positioning pin 204 and a circuit board abutment surface 205 that can contact the circuit board 5 are provided on the rear end of the primary optical element support 2. The circuit board 5 has positioning holes 501 that match the positioning pin 204. At least one circuit board abutment surface 205 is provided, preferably one at each of the four corners at the rear end of the primary optical element support 2, for a total of four. This ensures that when the optical component is connected to the circuit board 5, the circuit board 5 rests evenly against the circuit board abutment surface 205 of the primary optical element support 2, limiting the rearward movement of the primary optical component. Simultaneously, the positioning pin 204 is inserted into the positioning hole 501 for quick positioning of the circuit board 5, further ensuring the positional accuracy between the low beam light source 7 and the light incident surface 1013 of the primary optical element 1.

[0155] As a second preferred embodiment of the vehicle lighting device of the present invention, see [link to previous document]. Figures 42 to 47 The vehicle lighting device also includes a radiator 6, which is located at the rear of the circuit board 5. A screw post 403 is located at the rear end of the secondary optical element bracket 4. The radiator 6 has screw holes that match the screw post 403. A screw 8 passes through the screw hole on the radiator 6 and is threaded onto the screw post 403, thus tightening the radiator 6 onto the secondary optical element bracket 4 to securely hold the circuit board 5 in place. Preferably, the screw post 403 is positioned diagonally at the rear end of the secondary optical element bracket 4, making the connection structure of the various components of the vehicle lighting device more stable.

[0156] The following describes the structure and installation process of the primary optical element 1, primary optical element bracket 2, secondary optical element 3, and secondary optical element bracket 4 of the present invention through a relatively preferred embodiment of the vehicle lighting device. The vehicle lighting device includes a primary optical element 1, a primary optical element bracket 2 for mounting the primary optical element 1, a secondary optical element 3, and a secondary optical element bracket 4 for mounting the secondary optical element 3. A circuit board 5 and a heat sink 6 are sequentially arranged on the rear side of the primary optical element 1, and a low beam light source 7 is mounted on the circuit board 5.

[0157] The primary optical element 1 includes a primary optical element body and a primary optical element mounting part 103 connected to the primary optical element body. The primary optical element body includes a light guide part 101 and a fusion light emitting part 102 arranged from back to front. The thickness of the fusion light emitting part 102 in the vertical direction is greater than the thickness of the light guide part 101 in the vertical direction. The front end surface of the fusion light emitting part 102 is set as the light emitting surface 1021. The light guide part 101 includes three light guide pillars arranged sequentially in the left-right direction. The three light guide pillars are two side light guide pillars 1011 and one middle light guide pillar 1012. The side light guide pillars 1011 and the middle light guide pillar 1012... The rear end face is formed as the light-incident surface 1013. The outer surface of the side light guide 1011 is configured to extend forward along a straight line from the rear end of the side light guide 1011, and then bend outward along a curve to the rear side of the fused light-emitting part 102. The distance between the left and right sides of the middle light guide 1012 gradually increases from back to front, forming an angle of 2°-4°. The angle of the light guide gap between the side light guide 1011 and the middle light guide 1012 is 5°-10°. The light-emitting surface 1021 is configured as a forward-convex curved surface. The light-emitting surface 1021 includes a main light-emitting surface 1024 and a surface located below the main light-emitting surface 1024. The secondary light-emitting surface 1025 is configured to gradually slope downwards and backwards from top to bottom. A cutoff line structure is provided at the bottom of the secondary light-emitting surface 1025. The cutoff line structure includes a central cutoff line structure 1022 and outer extension structures 1026 located on both sides of the central cutoff line structure 1022. The outer extension structures 1026 are smoothly connected to the central cutoff line structure 1022. A 50L dark area forming structure 1023 is provided at the bottom of the front end of the fusion light-emitting section 102. The left and right sides and top surface of the fusion light-emitting section 102 are connected to the primary optical element mounting section 103, and the bottom surface is connected to the primary optical element mounting section 103. An insertion hole 1031 is formed between the mounting parts 103. The lower end of the insertion hole 1031 is set as a support plate contact surface that matches the bottom surface structure of the support plate 202. A slot 1032 that matches the card block 2011 is provided on the primary optical element mounting part 103. Limiting blocks 1033 are provided on the left and right sides of the front end of the primary optical element mounting part 103. The upper and lower end surfaces of the limiting block 1033 are formed as the upper and lower limiting surfaces 1034 of the primary optical element, and the outer side is formed as the left and right limiting surfaces 1035 of the primary optical element. The upper and lower sides of the limiting block 1033 are respectively provided with the forward movement limiting surfaces 1036 of the primary optical element.

[0158] The primary optical element support 2 includes a primary optical element body receiving cavity 201 for inserting the primary optical element body and a support plate 202 located within the primary optical element body receiving cavity 201. The rear end of the primary optical element body receiving cavity 201 is provided with multiple frustum-shaped through holes 203 whose cross-sectional perimeter gradually decreases from front to back. The rear opening of each frustum-shaped through hole 203 is configured as a light guide post limiting hole 2031 capable of limiting the position of the light guide post. The number of frustum-shaped through holes 203 is greater than or equal to the number of light guide posts. A solar anti-sunlight focusing plate 207 is provided on the primary optical element support 2, and a locking block 2 is provided on the outer side of the primary optical element body receiving cavity 201. 011, the front end of the primary optical element body receiving cavity 201 is formed with a primary optical element rearward movement limiting surface 2012, the bottom of the support plate 202 is provided with a reinforcing structure 2022, the front end surface of the support plate 202 is set as an inward curved surface, and the front sides of the top surface of the support plate 202 are respectively provided with an outer extension cut-off line structure 2021, the area between the outer extension structure 1026 and the outer extension cut-off line structure 2021 on the top surface of the support plate 202 is provided with an aluminum plating layer, the left and right sides of the primary optical element bracket 2 are respectively provided with guide holes 206, the rear end is provided with a positioning pin 204 and a circuit board abutment surface 205 located at the four corners of the rear end;

[0159] The secondary optical component support 4 is provided with a primary optical component receiving cavity 401 for accommodating the primary optical component. The secondary optical component 3 is installed at the front end of the primary optical component receiving cavity 401. The rear end of the primary optical component receiving cavity 401 is provided with a limiting cavity 402. The inner wall of the limiting cavity 402 is provided with a receiving cavity upper and lower limiting surface 4021 corresponding to the upper and lower limiting surface 1034 of the primary optical component and a receiving cavity left and right limiting surface 4022 corresponding to the left and right limiting surface 1035 of the primary optical component. The rear end surface of the primary optical component receiving cavity 401 is provided with a receiving cavity forward moving limiting surface 4011 matching the primary optical component forward moving limiting surface 1036. The rear end of the secondary optical component support 4 is provided with a screw post 403 at a diagonal position and a guide pin 404 matching the guide hole 206.

[0160] The circuit board 5 is provided with positioning holes 501 that match the positioning pin 204;

[0161] The heat sink 6 is provided with screw holes that match the screw post 403.

[0162] The specific implementation method of the above-mentioned vehicle lighting device, and its installation process are as follows:

[0163] First, the primary optical element bracket 2 is inserted into the primary optical element 1 from the rear side, so that the primary optical element body receiving cavity 201 is inserted into the inner cavity of the primary optical element mounting part 103 from the rear side of the primary optical element 1. The primary optical element body is installed in the primary optical element body receiving cavity 201. The support plate 202 is inserted into the insertion plate hole 1031, so that the bottom surface of the support plate 202 is in contact with the support plate contact surface and the top surface is in contact with the bottom surface of the fusion light-emitting part 102, so that the outer extension cutoff line is connected. Structure 2021 and center cutoff line structure 1022 have a junction a of center cutoff line structure and outer extended cutoff line structure to form a combined cutoff line structure. At the same time, the card block 2011 is inserted into the corresponding card slot 1032. The primary optical element rearward limiting surface 2012 abuts against the inner end face of the primary optical element mounting part 103. The rear ends of the side light guide post 1011 and the middle light guide post 1012 are respectively inserted from the front end of the corresponding frustum-shaped through hole 203 and limited on the light guide post limiting hole 2031 to form a primary optical component.

[0164] The second step is to insert the primary optical component into the primary optical component receiving cavity 401 from the rear end of the secondary optical component support 4, so that the limiting block 1033 is inserted into the corresponding limiting cavity 402, the upper and lower limiting surfaces 1034 of the primary optical component are in contact with the upper and lower limiting surfaces 4021 of the corresponding receiving cavity, the left and right limiting surfaces 1035 of the primary optical component are in contact with the left and right limiting surfaces 4022 of the corresponding receiving cavity, the forward moving limiting surface 1036 of the primary optical component is in contact with the forward moving limiting surface 4011 of the corresponding receiving cavity, and at the same time, the guide pin 404 is inserted into the corresponding guide hole 206. Then, the secondary optical component 3 is installed at the front end of the primary optical component receiving cavity 401 to form an optical component.

[0165] The third step is to install the near-light source 7 on the circuit board 5, connect the circuit board 5 to the rear end of the optical component, that is, insert the positioning pin 204 into the corresponding positioning hole 501 so that the circuit board 5 and the circuit board contact surface 205 fit together, then pass the screw 8 through the screw hole on the radiator 6 and insert it into the screw post 403 and tighten it, fix the radiator 6 and the secondary optical component bracket 4 and press the circuit board 5 to complete the installation of the vehicle lighting device.

[0166] The aforementioned vehicle lighting device can be designed such that the longest of the three dimensions of the vehicle lighting device (length, width, and height) is less than or equal to 130 mm, preferably less than or equal to 100 mm. Furthermore, the shorter of the length and width of the light-emitting surface of the secondary optical element 3 or other light-emitting optical element can be designed to be less than or equal to 20 mm, preferably less than or equal to 10 mm.

[0167] The primary optical element 1, primary optical element bracket 2, primary optical assembly, optical assembly, and vehicle lighting device provided by any of the above technical solutions in this invention can be applied not only to small vehicle lighting devices, but also to larger vehicle lighting devices.

[0168] A sixth aspect of the present invention provides a vehicle including the vehicle lighting device described in any of the above-described technical solutions. Therefore, it possesses all the beneficial effects of the technical solutions described above, including at least the primary optical element, primary optical assembly, optical assembly, and vehicle lighting device.

[0169] As can be seen from the above description, through the above technical solution, the light guide portion 101 of the primary optical element 1 provided by the present invention is configured as a plurality of light guide pillars arranged sequentially in the left-right direction, and the thickness of the fusion light emitting portion 102 in the up-down direction is greater than the thickness of the light guide portion 101 in the up-down direction. Due to the increased thickness of the fusion light emitting portion 102, the light transmitted from each light guide pillar to the fusion light emitting portion 102 can not only be fused in the fusion light emitting portion 102, making the light transmitted to the light emitting surface 1021 more uniformly distributed, but also make the light emitted from the light emitting surface 1021 more diffused, which is beneficial to the softening of the light shape below the upper boundary of the near-light shape, thereby making the primary optical element 1 have high optical efficiency and good near-light shape effect.

[0170] In a preferred embodiment of the present invention, the outer surface of the side light guide post 1011 is configured to extend forward along a straight line from the rear end, and then bend outward along a curve to the rear side of the fused light-emitting part 102, so that the outer contour of the side light guide post 1011 gradually bends to both sides, which can increase the illumination range on both sides of the near beam pattern; the primary optical element 1 and the primary optical element bracket 2 are formed into a primary optical assembly by plugging them together, so as to improve the structural stability and the stability of the light pattern formed when the primary optical element 1 is installed and used, making the structure between the components of the vehicle lighting device more compact and the positional accuracy higher; the primary optical element 1 and the primary optical assembly receiving cavity 401 are provided with a positioning restriction structure, which can improve the structural stability and relative positional accuracy of the connection between the primary optical assembly and the secondary optical element bracket 4, thereby improving the relative positional accuracy between the primary optical element 1 and the secondary optical element 3, so as to improve the formed near beam pattern effect.

[0171] 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 scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A primary optical component, characterized in that, The system includes a primary optical element (1) and a primary optical element bracket (2) for mounting the primary optical element (1). The primary optical element (1) includes a primary optical element body, which includes a light guide (101) and a fusion light emission part (102) arranged from back to front. The front end face of the fusion light emission part (102) is set as a light emission surface (1021). The light guide (101) includes a plurality of light guide columns arranged sequentially in the left-right direction. The thickness of the fusion light emission part (102) in the up-down direction is greater than the thickness of the light guide (101) in the up-down direction. The fusion light emission part (102) can fuse the light transmitted from the plurality of light guide columns to the fusion light emission part (102) and then emit it through the light emission surface (1021). The primary optical element support (2) includes a primary optical element body receiving cavity (201). The primary optical element support (2) can be inserted into the primary optical element (1) so that the primary optical element body is installed in the primary optical element body receiving cavity (201). The primary optical element (1) further includes a primary optical element mounting part (103) connected to the primary optical element body. The left and right sides and the top surface of the fusion light-emitting part (102) are connected to the primary optical element mounting part (103), and an insertion hole (1031) is formed between the bottom surface and the primary optical element mounting part (103). A support plate (202) is provided in the primary optical element body receiving cavity (201) so that the support plate (202) can be inserted into the insertion hole (1031) when the primary optical element body is installed in the primary optical element body receiving cavity (201), and the fusion light-emitting part (102) is supported on the support plate (202).

2. The primary optical component according to claim 1, characterized in that, The plurality of light guide pillars include two side light guide pillars (1011) and at least one intermediate light guide pillar (1012). At least one intermediate light guide pillar (1012) is arranged sequentially between the two side light guide pillars (1011) in the left-right direction. The outer surface of the side light guide pillar (1011) is configured to extend forward in a straight line from the rear end of the side light guide pillar (1011) and then bend outward in a curve to the rear side of the fused light-emitting part (102).

3. The primary optical component according to claim 2, characterized in that, The intermediate light guide column (1012) is configured such that the distance between the left and right sides gradually increases from back to front.

4. The primary optical component according to claim 3, characterized in that, The angle between the left and right sides of the intermediate light guide (1012) is 2°-4°, and the angle between the gap between the side light guide (1011) and the intermediate light guide (1012) adjacent to the side light guide (1011) is 5°-10°.

5. The primary optical component according to any one of claims 1 to 4, characterized in that, The light-emitting surface (1021) is configured as a convex curved surface.

6. The primary optical component according to claim 5, characterized in that, The bottom of the light-emitting surface (1021) is formed with a cutoff line structure, which includes a central cutoff line structure (1022) and cutoff line outer extension structures (1026) located on both sides of the central cutoff line structure (1022). The cutoff line outer extension structures (1026) are smoothly connected to the central cutoff line structure (1022).

7. The primary optical component according to claim 6, characterized in that, The light-emitting surface (1021) includes a main light-emitting surface (1024) and a secondary light-emitting surface (1025) located below the main light-emitting surface (1024). The secondary light-emitting surface (1025) is configured to gradually slope downward from top to bottom, and the cutoff line structure is disposed on the secondary light-emitting surface (1025).

8. The primary optical component according to claim 7, characterized in that, A transition surface is provided between the main light-emitting surface (1024) and the secondary light-emitting surface (1025). The transition surface is set as an arc surface so that the main light-emitting surface (1024) and the secondary light-emitting surface (1025) can be smoothly connected.

9. The primary optical component according to claim 1, characterized in that, A locking block (2011) is provided on the outside of the primary optical element body receiving cavity (201), and a locking groove (1032) matching the locking block (2011) is provided on the primary optical element mounting part (103).

10. The primary optical component according to claim 1, characterized in that, The bottom of the support plate (202) is provided with a reinforcing structure (2022).

11. The primary optical component according to any one of claims 1 to 4, 9 and 10, characterized in that, The primary optical element support (2) is provided with a sun-shielding focusing plate (207).

12. The primary optical component according to any one of claims 1 to 4, 9 and 10, characterized in that, The light-emitting surface (1021) is configured as a convex curved surface, and a cutoff line structure is formed at the bottom of the light-emitting surface (1021). The cutoff line structure includes a central cutoff line structure (1022) and cutoff line outer extension structures (1026) located on both sides of the central cutoff line structure (1022). The cutoff line outer extension structures (1026) are smoothly connected to the central cutoff line structure (1022). The front end face of the support plate (202) is set as a concave curved surface, and the front ends of the top surface of the support plate (202) are respectively provided with an outer extension cut-off line structure (2021). The outer extension cut-off line structure (2021) can be connected with the cut-off line structure (1022) to form a combined cut-off line structure.

13. The primary optical component according to claim 12, characterized in that, An aluminum plating layer is provided on the top surface of the support plate (202) in the area between the outer extension structure (1026) and the outer extension cutoff structure (2021).

14. The primary optical component according to any one of claims 1 to 4, 9 and 10, characterized in that, The rear end of the primary optical element body receiving cavity (201) is provided with a plurality of frustum-shaped through holes (203) with the cross-sectional perimeter gradually decreasing from front to back. The rear end opening of each frustum-shaped through hole (203) is configured as a light guide post limiting hole (2031) that can limit the light guide post. The number of frustum-shaped through holes (203) is greater than or equal to the number of light guide posts.

15. An optical component, characterized in that, It includes a primary optical assembly, a secondary optical element (3), and a secondary optical element bracket (4) for mounting the secondary optical element (3) according to any one of claims 1 to 13.

16. The optical component according to claim 15, characterized in that, The primary optical element support (2) includes a primary optical element body receiving cavity (201). The primary optical element support (2) can be inserted into the primary optical element (1) so that the primary optical element body is installed in the primary optical element body receiving cavity (201) to form the primary optical assembly. The secondary optical element support (4) is provided with a primary optical component receiving cavity (401) for accommodating the primary optical component. The secondary optical element (3) is installed at the front end of the primary optical component receiving cavity (401). The primary optical element (1) and the primary optical component receiving cavity (401) are provided with positioning restriction structures to restrict the degree of freedom of the primary optical component when it is placed in the primary optical component receiving cavity (401).

17. The optical component according to claim 16, characterized in that, The positioning and limiting structure includes a limiting cavity (402) located on the primary optical component receiving cavity (401) and a limiting block (1033) located on the primary optical element (1), wherein the limiting cavity (402) matches the limiting block (1033).

18. The optical component according to claim 17, characterized in that, The limiting block (1033) is located on the left and right sides of the front end of the primary optical element (1).

19. The optical component according to claim 18, characterized in that, The upper and lower end faces of the limiting block (1033) are formed as upper and lower limiting surfaces (1034) of the primary optical element, and the outer side is formed as left and right limiting surfaces (1035) of the primary optical element. The inner wall of the limiting cavity (402) is provided with upper and lower limiting surfaces (4021) of the receiving cavity corresponding to the upper and lower limiting surfaces (1034) of the primary optical element and left and right limiting surfaces (4022) of the receiving cavity corresponding to the left and right limiting surfaces (1035) of the primary optical element.

20. The optical component according to claim 18, characterized in that, The primary optical element (1) has a primary optical element forward movement limiting surface (1036) located on the upper and / or lower side of the limiting block (1033) at its front end, and the primary optical component receiving cavity (401) has a receiving cavity forward movement limiting surface (4011) that matches the primary optical element forward movement limiting surface (1036) at its rear end.

21. The optical component according to any one of claims 17 to 20, characterized in that, The primary optical element (1) further includes a primary optical element mounting part (103) connected to the primary optical element body, and the limiting block (1033) is located at the front end of the primary optical element mounting part (103).

22. The optical component according to any one of claims 15 to 20, characterized in that, The secondary optical element bracket (4) is provided with a guide pin (404) at its rear end, and the primary optical element bracket (2) is provided with a guide hole (206) that matches the guide pin (404).

23. A vehicle lighting device, characterized in that, It includes a low-light source (7) and an optical assembly according to any one of claims 15 to 22, wherein the low-light source (7), the primary optical element (1) and the secondary optical element (3) are arranged in reverse order from back to front.

24. The vehicle lighting device according to claim 23, characterized in that, The vehicle lighting device also includes a circuit board (5), the low beam light source (7) is disposed on the circuit board (5), the rear end of the primary optical element bracket (2) is provided with a positioning pin (204) and a circuit board abutment surface (205) that can contact the circuit board (5), and the circuit board (5) is provided with a positioning hole (501) that matches the positioning pin (204).

25. The vehicle lighting device according to claim 24, characterized in that, The vehicle lighting device also includes a radiator (6), and a screw post (403) is provided at the rear end of the secondary optical element bracket (4). The radiator (6) is provided with screw holes that match the screw post (403).

26. A vehicle, characterized in that, Includes the vehicle lighting device according to any one of claims 23 to 25.

Images