Headlight optical component, headlight module, headlight and vehicle

Abstract

The present invention relates to a vehicle lamp and discloses a vehicle lamp optical assembly, comprising a primary optical unit or a primary optical unit group having a plurality of primary optical units arranged side by side, wherein the primary optical unit comprises a light input portion and a light guide portion, wherein the light guide portion has a light input portion mounting surface and a primary light output surface, wherein the light input portion mounting surface is provided with at least one light input portion (5), wherein the light input portion (5) is configured to converge incident light and output it to the light guide portion, wherein the light guide portion is configured to guide the incident light to output from the primary light output surface; and a secondary optical unit (4), wherein the secondary optical unit (4) has a secondary light output surface (41) and a secondary light input surface (42) corresponding to the primary light output surface, wherein the secondary light output surface (41) is a narrow and long smooth curved surface. In addition, the present invention also relates to a vehicle lamp module, a vehicle lamp and a vehicle. The present invention can achieve a design with miniaturization and diversified shapes.

Description

Technical Field

[0001] The present invention relates to a vehicle lamp, and in particular to a vehicle lamp optical assembly. In addition, the present invention also relates to a vehicle lamp module, a vehicle lamp and a vehicle. Background Art

[0002] Currently, vehicle lighting optical systems primarily implement high and low beams using lens-based and reflective systems. Reflective systems consist of a light source and a reflector. Light from the light source is reflected by the reflector and then passes directly through the exterior mirrors to form the vehicle's lighting. Lens-based systems, on the other hand, consist of a light source, a reflector, and a lens. Light from the light source is reflected by the reflector, then formed by the lens and finally passes through the exterior mirrors to form the high and low beams required for vehicle lighting.

[0003] The above-mentioned lens-type and reflective lighting systems are simple in form and are limited by the size of the lens or reflector. The opening of the high and low beam modules of the headlights (the opening of the high and low beam modules of the headlights refers to the height of the light-emitting side of the module) is difficult to be made very small, resulting in the inability to achieve a more miniaturized and diversified design of the headlights in terms of size and shape. Summary of the Invention

[0004] The technical problem to be solved by the first aspect of the present invention is to provide a headlight optical assembly that can achieve a design with miniaturization and diversified shapes.

[0005] The technical problem to be solved by the second aspect of the present invention is to provide a vehicle light module that can achieve a design with miniaturization and diversified shapes.

[0006] The technical problem to be solved by the third aspect of the present invention is to provide a vehicle lamp that can be designed with miniaturization and diversified shapes.

[0007] The technical problem to be solved by the fourth aspect of the present invention is to provide a vehicle that can be designed with diverse shapes.

[0008] In order to solve the above technical problems, the first aspect of the present invention provides a headlight optical assembly, comprising: a primary optical unit or a primary optical unit group having a plurality of primary optical units arranged side by side, the primary optical unit comprising a light input portion and a light guide portion, the light guide portion having a light input portion mounting surface and a primary light output surface, the light input portion mounting surface being provided with at least one light input portion, the light input portion being configured to converge the incident light and output it to the light guide portion, the light guide portion being configured to guide the incident light to be emitted from the primary light output surface; a secondary optical unit, the secondary optical unit having a secondary light output surface and a secondary light input surface corresponding to the primary light output surface, wherein the secondary light output surface is a narrow and long smooth curved surface.

[0009] Preferably, the light guiding parts of the multiple primary optical units in the primary optical unit group are connected as one, and the primary optical unit or the primary optical unit group is provided with an auxiliary light source on at least one side in the left and right directions of the light guiding part, and the light emitted by the auxiliary light source enters from the side of the light guiding part and is emitted from the primary light emitting surface.

[0010] Preferably, a light-collecting structure is provided between the auxiliary light source and the light-guiding portion.

[0011] Preferably, the longitudinal section of the secondary light-emitting surface is an arc convex forward, and the transverse section is a straight line or a curve extending in the left-right direction.

[0012] Preferably, the light incident portion is a light-collecting cup structure, and the outer contour surface of the light incident portion is a curved surface with a diameter gradually increasing from the back to the front.

[0013] Preferably, both the upper and lower surfaces of the light guide portion are provided with a patterned structure or a coating layer.

[0014] Preferably, the primary optical unit is a low beam inflection point primary optical unit, a low beam stretch primary optical unit or a high beam primary optical unit, and the primary optical unit group includes at least one or more of the low beam inflection point primary optical unit, the low beam stretch primary optical unit and the high beam primary optical unit.

[0015] Preferably, the primary optical unit group comprises a low beam inflection point primary optical unit, a low beam stretch primary optical unit and a high beam primary optical unit, and the low beam stretch primary optical unit is arranged between the low beam inflection point primary optical unit and the high beam primary optical unit.

[0016] Preferably, the light guiding portion of the low beam inflection point primary optical unit is a low beam light guiding portion, and its primary light emitting surface is a low beam primary light emitting surface. The secondary light incident surface corresponding to the low beam primary light emitting surface includes at least one low beam secondary light incident surface, and the low beam secondary light incident surface is a curved surface convex backward. The low beam secondary light incident surface corresponds one-to-one to the light incident portion, and a low beam inflection point cutoff line structure for forming a low beam inflection point cutoff line is provided on the front boundary of the lower surface of the low beam light guiding portion.

[0017] Preferably, the low beam inflection point cut-off line structure includes at least one left-driving cut-off line structure, or includes at least one right-driving cut-off line structure, or includes at least one left-driving cut-off line structure and at least one right-driving cut-off line structure, and the left-driving cut-off line structure and the right-driving cut-off line structure correspond one-to-one to the light incident portion.

[0018] Preferably, a zone III structure for forming a zone III light shape of the low beam is provided at the lower front end of the low beam light guide portion, and the zone III structure, the lower surface of the low beam light guide portion and the rear end of the low beam light guide portion form an upwardly concave groove, and the low beam inflection point cut-off line structure is formed at the junction of the zone III structure and the top of the groove.

[0019] Preferably, the light guiding portion of the low beam widening primary optical unit is a low beam widening light guiding portion, the low beam widening light guiding portion and the secondary optical unit are connected as one, and a low beam widening cutoff line structure for forming a low beam widening cutoff line is provided on the lower surface of the low beam widening light guiding portion.

[0020] Preferably, a zone III structure for forming a low beam zone III light shape is provided at the lower front end of the low beam widening light guide portion, and the zone III structure, the lower surface of the low beam widening light guide portion, and the rear end of the low beam widening light guide portion form an upwardly concave groove, and the junction of the zone III structure and the top of the groove forms the low beam widening cutoff line structure.

[0021] Preferably, the light guiding portion of the high beam primary optical unit is a high beam light guiding portion, and its primary light emitting surface is a high beam primary light emitting surface. The secondary light incident surface corresponding to the high beam primary light emitting surface includes at least one high beam secondary light incident surface, and the high beam secondary light incident surface is a curved surface convex backward, and the high beam secondary light incident surface corresponds one-to-one to the light incident portion.

[0022] Preferably, the primary optical unit is a low beam inflection point primary optical unit, a low beam widening primary optical unit or a high beam primary optical unit, and the primary optical unit group includes at least one or more of the low beam inflection point primary optical unit, the low beam widening primary optical unit and the high beam primary optical unit; the light guiding portion of the low beam inflection point primary optical unit is a low beam light guiding portion, the light guiding portion of the low beam widening primary optical unit is a low beam widening light guiding portion, and the front end lower portion of the low beam light guiding portion and the low beam widening light guiding portion are both provided with a zone III structure for forming a low beam zone III light shape, and a concave-convex structure is provided on the zone III light incident surface of the zone III structure.

[0023] Preferably, an auxiliary light source is provided on the side of the zone III structure of the low-beam light guide portion or the low-beam widened light guide portion.

[0024] A second aspect of the present invention further provides a vehicle lamp module, comprising the vehicle lamp optical assembly described in the first aspect and at least one light source, wherein the light source corresponds to the light incident portion in a one-to-one manner.

[0025] Preferably, the light sources can be independently controlled to turn on and off.

[0026] A third aspect of the present invention further provides a vehicle lamp, comprising the vehicle lamp module described in the second aspect.

[0027] A fourth aspect of the present invention further provides a vehicle comprising the vehicle light described in the third aspect.

[0028] The present invention makes the overall vertical height of the headlight optical assembly very small by setting the secondary light-emitting surface as a narrow, long, smooth and smooth curved surface without step difference, and by arranging the light input part and the light guide part, thereby realizing a miniaturized design with a small opening in terms of volume; the shape of the secondary light-emitting surface is varied and highly adaptable, which can meet the styling requirements of different headlights and realize diversified design in styling.

[0029] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the front three-dimensional structure of an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the reverse three-dimensional structure of an embodiment of the present invention Figure 1 ;

[0032] Figure 3 This is a schematic diagram of the reverse three-dimensional structure of an embodiment of the present invention Figure 2 ;

[0033] Figure 4 This is a schematic diagram of the reverse three-dimensional structure of an embodiment of the present invention Figure 3 ;

[0034] Figure 5 yes Figure 1 Bottom view of

[0035] Figure 6 yes Figure 5 AA cross-section of

[0036] Figure 7 yes Figure 5 BB cross-section diagram;

[0037] Figure 8 yes Figure 5 CC cross-section diagram;

[0038] Figure 9 This is a schematic diagram of the reverse three-dimensional structure of an embodiment of the present invention Figure 4 ;

[0039] Figure 10 yes Figure 9 Schematic diagram of the low beam inflection point cutoff line structure corresponding to position D in the middle;

[0040] Figure 112 is a schematic diagram of a low beam inflection point cut-off line structure of a low beam inflection point primary optical unit in one embodiment of the present invention;

[0041] Figure 12 1 is a schematic diagram of another low beam inflection point cut-off line structure of a low beam inflection point primary optical unit in one embodiment of the present invention;

[0042] Figure 13 yes Figure 12 Schematic diagram of the enlarged structure at E in the middle;

[0043] Figure 14 This is a schematic structural diagram of another embodiment of the present invention. Figure 1 ;

[0044] Figure 15 This is a schematic structural diagram of another embodiment of the present invention. Figure 2 ;

[0045] Figure 16 Schematic diagram of light shape according to an embodiment of the present invention.

[0046] Description of Reference Numerals

[0047] 1 Low beam inflection point Primary optical unit 11 Low beam light guide

[0048] 111 Low beam primary light emitting surface 12 Low beam inflection point cut-off line structure

[0049] 121 Left-hand drive cut-off line structure 122 Right-hand drive cut-off line structure

[0050] 2 Low beam widening primary optical unit 21 Low beam widening light guide

[0051] 3 High beam primary optical unit 31 High beam light guide

[0052] 311 high beam primary light emitting surface 4 secondary optical units

[0053] 41 Secondary light emitting surface 42 Secondary light incident surface

[0054] 421 low beam secondary light entrance surface 422 high beam secondary light entrance surface

[0055] 5 Light input part 6 Zone III structure

[0056] 61III zone light incident surface 611 concave-convex structure

[0057] 7 grooves and 8 focusing structures

[0058] a low beam center area light shape a1 low beam inflection point cut-off line

[0059] b high beam light shape c low beam widened area light shape

[0060] C1 low beam widening cut-off line DETAILED DESCRIPTION

[0061] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate directions or positional relationships based on the attached drawings. Figure 2 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0063] like Figures 1 to 16 As shown, the present invention provides a headlight optical assembly, comprising: a primary optical unit or a primary optical unit group having a plurality of primary optical units arranged side by side, the primary optical unit comprising a light input portion 5 and a light guide portion, the light guide portion having a light input portion mounting surface and a primary light output surface, the light input portion mounting surface being provided with at least one light input portion 5, the light input portion 5 being configured to converge the incident light and output it to the light guide portion, the light guide portion being configured to guide the incident light to be emitted from the primary light output surface; a secondary optical unit 4, the secondary optical unit 4 having a secondary light output surface 41 and a secondary light input surface 42 corresponding to the primary light output surface, wherein the secondary light output surface 41 is a narrow and long smooth curved surface.

[0064] Since the secondary optical unit 4 can be coordinated with a single or multiple primary optical units, the secondary light-emitting surface 41 of the secondary optical unit 4 is the light-emitting surface of the entire headlight optical assembly. By setting the secondary light-emitting surface 41 as a narrow, long, smooth and smooth curved surface without step difference, and through the arrangement of the light input portion 5 and the light guide portion, a better focusing effect of the light in the upper and lower directions can be achieved, so that the upper and lower heights of the secondary light-emitting surface 41 can be made into the millimeter level, and the upper and lower heights of the light input portion 5 and the light guide portion can also be made very small, so that the overall upper and lower heights of the headlight optical assembly can be made very small, thereby realizing a miniaturized design with a small opening in volume.

[0065] The secondary light-emitting surface 41 can be a cylindrical curved surface, i.e., the longitudinal section of the secondary light-emitting surface 41 is a forward-convex arc, and the transverse section is a straight line extending in the left-right direction, or the transverse section of the secondary light-emitting surface 41 is a curve extending in the left-right direction, with the secondary light-emitting surface 41 formed by sweeping the longitudinal section along the transverse section. The secondary light-emitting surface 41 has a variety of shapes and is highly adaptable to meet the styling requirements of different vehicle lamps, achieving diverse design in terms of styling.

[0066] Specifically, the primary optical unit is a low-beam inflection point primary optical unit 1, a low-beam stretch primary optical unit 2, or a high-beam primary optical unit 3. The primary optical unit group includes at least one or more of the low-beam inflection point primary optical unit 1, the low-beam stretch primary optical unit 2, and the high-beam primary optical unit 3. The low-beam inflection point primary optical unit 1 cooperates with the secondary optical unit 4 to form a low-beam center area light shape a having a low-beam inflection point cutoff line. The low-beam stretch primary optical unit 2 cooperates with the secondary optical unit 4 to form a low-beam stretch area light shape c having a low-beam stretch cutoff line. The high-beam primary optical unit 3 cooperates with the secondary optical unit 4 to form a high-beam light shape b. Thus, multiple lighting functions can be achieved individually or simultaneously to meet the diverse design requirements of vehicle lamps.

[0067] As a specific implementation method, Figures 1 to 10 As shown, the headlight optical assembly includes a primary optical unit group consisting of a low beam inflection point primary optical unit 1, a low beam widening primary optical unit 2 and a high beam primary optical unit 3, and a secondary optical unit 4. The low beam widening primary optical unit 2 is arranged between the low beam inflection point primary optical unit 1 and the high beam primary optical unit 3, which can form the following Figure 16 The three light shapes shown in the figure are as follows: the low beam inflection point primary optical unit 1 and the secondary optical unit 4 cooperate to form the low beam central area light shape a, and a1 in the figure is the low beam inflection point cutoff line of the low beam central area light shape a, which has an inflection point; the low beam widening primary optical unit 2 and the secondary optical unit 4 cooperate to form the low beam widening area light shape c, and c1 in the figure is the low beam widening cutoff line of the low beam widening area light shape c, which is preferably a horizontal line; the high beam primary optical unit 3 and the secondary optical unit 4 cooperate to form the high beam light shape b.

[0068] Due to the different functions to be achieved, the structures of the multiple primary optical units are different. Accordingly, the structures of the secondary light incident surfaces 42 corresponding to the primary optical units are also different. The specific structures of the primary optical units are described in detail below, and the structure of the secondary light incident surface 42 of the secondary optical unit 4 is also described in conjunction.

[0069] Specifically, the light-guiding portion of the low-beam inflection point primary optical unit 1 is a low-beam light-guiding portion 11, whose primary light-emitting surface is a low-beam primary light-emitting surface 111. The secondary light-entering surface 42 corresponding to the low-beam primary light-emitting surface 111 includes four low-beam secondary light-entering surfaces 421. The low-beam secondary light-entering surfaces 421 are rearwardly convex curved surfaces, and each of the low-beam secondary light-entering surfaces 421 corresponds one-to-one with the light-entering portion 5. A low-beam inflection point cutoff line structure 12 for forming a low-beam inflection point cutoff line is provided on the front boundary of the lower surface of the low-beam light-guiding portion 11. By providing the low-beam inflection point cutoff line structure 12 on the low-beam light-guiding portion 11, there is no need to use a separate light shield to block and form a cutoff line, nor is there a need to provide a drive mechanism to drive the light shield to achieve high-beam and low-beam switching. This eliminates mechanical failures, reduces parts, simplifies the structure, and occupies a smaller volume, resulting in higher space utilization efficiency and light distribution efficiency.

[0070] The shape of the low-beam secondary light-entry surface 421 can be calculated using the law of light refraction and surface fitting methods based on parameters such as the given secondary light-exiting surface 41, the focal point, and the direction of light emitted from the specific secondary light-exiting surface 41. The low-beam secondary light-entry surface 421 and its corresponding portion of the secondary light-exiting surface 41 together form a single focal point, which converges light emitted from the low-beam primary light-exiting surface 111 in the vertical, horizontal, and leftward directions to form a low-beam inflection cutoff line with an inflection point.

[0071] In order to meet different driving requirements, that is, to meet the driving requirements of left-hand driving or right-hand driving, different forms of low beam inflection point cut-off line structures 12 can be set. For example, the low beam inflection point cut-off line structure 12 includes at least one left-hand driving cut-off line structure 121 and at least one right-hand driving cut-off line structure 122. The left-hand driving cut-off line structure 121 and the right-hand driving cut-off line structure 122 correspond to the light entrance portion 5 one by one. Figure 9 and Figure 10As shown, the low beam inflection point cut-off line structure 12 includes two left-drive cut-off line structures 121 and two right-drive cut-off line structures 122 connected in sequence. When light is emitted through the portion of the low beam primary light-emitting surface 111 corresponding to the left-drive cut-off line structure 121, the light will be intercepted by the left-drive cut-off line structure 121, so that the light is all emitted above the left-drive cut-off line structure 121, and then emitted by the secondary optical unit 4 to form a left-drive low beam central area light shape with a left-drive low beam inflection point cut-off line; when light is emitted through the portion of the low beam primary light-emitting surface 111 corresponding to the right-drive cut-off line structure 122, the light will be intercepted by the right-drive cut-off line structure 122, so that the light is all emitted above the right-drive cut-off line structure 122, and then emitted by the secondary optical unit 4 to form a right-drive low beam central area light shape with a right-drive low beam inflection point cut-off line. Thus, by providing a left-hand drive cutoff structure 121 and a right-hand drive cutoff structure 122 within a single headlight optical assembly, dimming and light source switching can be performed according to actual needs, enabling left-hand and right-hand drive switching. This can be used to meet vehicle lighting requirements in different regions around the world, reducing the need for redevelopment and design of lamps. The number of left-hand drive cutoff structure 121 and right-hand drive cutoff structure 122 can be set to one, or multiple can be provided depending on the illumination requirements of the low beam center area. They are preferably located at their corresponding focal points.

[0072] In addition, multiple identical left-hand drive cut-off line structures 121 or right-hand drive cut-off line structures 122 can be arranged in sequence along the left-right direction, and the light source switch corresponding to each left-hand drive cut-off line structure 121 or right-hand drive cut-off line structure 122 can be independently controlled to achieve the horizontal movement of the low beam inflection point cut-off line, that is, the movement of the low beam inflection point, for realizing the adaptive front lighting system (AFS). Figure 11 and Figure 12 As shown, Figure 11 The mid- and low-beam inflection point cut-off line structure 12 includes four left-hand drive cut-off line structures 121 connected in sequence. Four light input parts 5 corresponding to each left-hand drive cut-off line structure 121 are provided on the light input part mounting surface of the low-beam light guide part 11. A light source is provided at the light input end of each light input part 5, and auxiliary lighting for the curve is achieved by independently controlling the brightness of each light source. Figure 12 The mid- and low-beam inflection point cut-off line structure 12 includes four right-driving cut-off line structures 122 connected in sequence. Similarly, four light input parts 5 corresponding to each right-driving cut-off line structure 122 are provided on the light input part mounting surface of the low-beam light guide part 11. A light source is provided at the light input end of each light input part 5, and auxiliary lighting for the curve is achieved by independently controlling the brightness of each light source.

[0073] More specifically, if Figure 5 and Figure 6As shown, the lower front end of the low-beam light guide 11 is provided with a zone III structure 6 for forming the low-beam zone III light pattern. The zone III structure 6, the lower surface of the low-beam light guide 11, and the rear end of the low-beam light guide 11 form an upwardly concave groove 7. The low-beam inflection point cutoff line structure 12 is formed at the intersection of the zone III structure 6 and the top of the groove 7. As a result, a portion of the light emitted from the light input portion 5 enters the low-beam light guide 11, is intercepted by the low-beam inflection point cutoff line structure 12, and then projected by the secondary optical unit 4 to form the low-beam center area light pattern a with a low-beam inflection point cutoff line. Another portion of the light emitted from the light input portion 5 directly enters the zone III structure 6 through the groove 7, and is projected by the secondary optical unit 4 to form the low-beam zone III light pattern.

[0074] Specifically, if Figure 5 and Figure 7 As shown, the light guiding portion of the low beam widening primary optical unit 2 is the low beam widening light guiding portion 21. Since the low beam widening cutoff line of the light shape c in the low beam widening area is a horizontal line and has no inflection point, the corresponding secondary optical unit 4 part may not have a single focus, but a focal line composed of several focal points, that is, there is no need to set a rearward protruding secondary light incident surface 42. Therefore, in order to facilitate the installation of the headlight optical components and make the structure more compact, the low beam widening light guiding portion 21 and the secondary optical unit 4 are preferably connected as one. A low beam widening cutoff line structure for forming a low beam widening cutoff line is provided on the lower surface of the low beam widening light guiding portion 21. The low beam widening cutoff line structure is preferably arranged on the above-mentioned focal line.

[0075] Similarly, a zone III structure 6 for forming a low-beam zone III light pattern is provided at the lower front end of the low-beam widening light guide portion 21. The zone III structure 6, the lower surface of the low-beam widening light guide portion 21, and the rear end of the low-beam widening light guide portion 21 form an upwardly concave groove 7. The intersection of the zone III structure 6 and the top of the groove 7 forms a low-beam widening cutoff line structure. As a result, a portion of light emitted from the light input portion 5 enters the low-beam widening light guide portion 21, is intercepted by the low-beam widening cutoff line structure, and then projected by the secondary optical unit 4 to form a low-beam widening area light pattern c having a low-beam widening cutoff line. Another portion of light emitted from the light input portion 5 directly enters the zone III structure 6 through the groove 7, and is projected by the secondary optical unit 4 to form a low-beam zone III light pattern.

[0076] Specifically, the light guide portion of the high-beam primary optical unit 3 is the high-beam light guide portion 31, and its primary light-emitting surface is the high-beam primary light-emitting surface 311. The secondary light-entering surface 42 corresponding to the high-beam primary light-emitting surface 311 includes six high-beam secondary light-entering surfaces 422. Each high-beam secondary light-entering surface 422 is a rearwardly convex curved surface, and each high-beam secondary light-entering surface 422 corresponds one-to-one with the light-entering portion 5. Thus, light emitted from the light-entering portion 5 enters the high-beam light guide portion 31, and is then projected by the secondary optical unit 4 to form a high-beam light pattern. In high-beam lighting, the car sensor can sense the road conditions and whether there are pedestrians or vehicles in the front or oncoming lanes. Since the high-beam primary optical unit 3 is provided with multiple light input parts 5, correspondingly, a light source is provided at the light input end of each light input part 5. The illumination area of ​​the light emitted by each light source is different. Therefore, the illumination area of ​​the headlights can be controlled by controlling the brightness of each light source to avoid the area where oncoming vehicles are located and avoid glare problems, thereby achieving an intelligent anti-glare effect, that is, realizing an adaptive high-beam system (Adaptive Driving Beam, abbreviated as ADB), where the number of light sources is determined by the pixels of the ADB to be implemented.

[0077] Among them, the shape of the high beam secondary light-entry surface 422 can be obtained by the given secondary light-emitting surface 41, the focus and the direction of the outgoing light of the specific secondary light-emitting surface 41, and other parameters through the law of refraction of light and the surface fitting method. In addition, it should be noted that the difference between the high beam light guide portion 31 and the low beam light guide portion 11 is that the directions of the outgoing light of their primary light-emitting surfaces are different, so as to form their respective corresponding light shapes. Since the low beam light shape should be located below the high beam light shape on the light distribution screen, in this embodiment, a low beam inflection point cut-off line structure 12 is provided at the front boundary of the lower surface of the low beam light guide portion 11, so that the outgoing light of the light-entry portion 5 can all be emitted from above the low beam inflection point cut-off line structure 12, and form the low beam center area light shape a located below the high beam light shape b after being projected by the secondary optical unit 4.

[0078] The low beam inflection point primary optical unit 1, low beam widening primary optical unit 2 and high beam primary optical unit 3 can be provided separately or integrated. The separate configuration facilitates dimming between the primary optical units, while the integrated configuration improves the positioning and installation accuracy between the primary optical units.

[0079] In another embodiment, the light guides of multiple primary optical units in the primary optical unit group are connected together. Each primary optical unit or group of primary optical units is equipped with an auxiliary light source on at least one side of the light guide, either left or right. When the auxiliary light source is activated, light from the auxiliary light source enters from the side of the light guide, exits through the primary light exit surface, and finally exits through the secondary light exit surface 41. This auxiliary light source can be configured to achieve either a daytime running light (DRL) function or a low-beam Zone III function by adjusting its luminous flux. When used for the DRL function, only the auxiliary light source is activated, and the secondary light exit surface 41 appears illuminated from the outside, effectively illuminating the entire lamp and achieving the DRL function. When used for the low-beam Zone III function, the auxiliary light source and the corresponding light source of the light input portion 5 are activated simultaneously. Light from the auxiliary light source, alone or in combination with light entering through the Zone III light entrance surface 61, can achieve the illumination and angle of the low-beam Zone III light pattern that meets regulatory requirements.

[0080] Specifically, if Figure 14 and Figure 15 As shown, the headlight optical assembly includes a primary optical unit group consisting of a low beam inflection point primary optical unit 1, a low beam widening primary optical unit 2 and a high beam primary optical unit 3, and a secondary optical unit 4, wherein the low beam widening primary optical unit 2 is arranged between the low beam inflection point primary optical unit 1 and the high beam primary optical unit 3, and the light guiding parts of the low beam inflection point primary optical unit 1, the low beam widening primary optical unit 2 and the high beam primary optical unit 3 are connected as a whole, and auxiliary light sources are respectively provided on both sides of the left and right directions of the integrated light guiding part, and a focusing structure 8 is provided between the auxiliary light source and the light guiding part. By providing the focusing structure 8, more light can enter from the side of the light guiding part, thereby improving the light utilization rate of the light sources on both sides, and the focusing structure 8 can be a focusing cup structure or a protruding structure protruding toward the auxiliary light source.

[0081] Preferably, the auxiliary light source is provided on one side of the zone III structure 6 of the low beam light guide portion 11, and a concave-convex structure 611 is provided on the zone III light incident surface 61 of the zone III structure 6 of the low beam light guide portion 11 and the low beam widening light guide portion 21. The concave-convex structure 611 can be as follows: Figure 12 and Figure 13The striped concave-convex structure shown can also be a grid-like concave-convex structure or a sawtooth-like concave-convex structure. On the one hand, the concave-convex structure 611 can cause the light emitted from the zone III light incident surface 61 to diverge, thereby improving the uniformity of the light shape of the low beam zone III. On the other hand, when the auxiliary light sources on both sides are turned on, the light emitted by the auxiliary light sources enters from the side of the light guide portion, is reflected by the zone III light incident surface 61, and then is emitted from the primary light emitting surface. The arrangement of the concave-convex structure 611 can cause more light emitted by the auxiliary light sources to undergo total internal reflection and be emitted from the primary light emitting surface and evenly projected onto the secondary light emitting surface 41, achieving the effect of uniform lighting and improving light utilization.

[0082] On the basis of the above embodiments, the light entrance portion 5 is preferably a focusing cup structure, which can better converge the light in the up, down, left and right directions. The outer contour surface of the light entrance portion 5 is a curved surface with a diameter gradually increasing from the back to the front. It is a solid body and has a light entrance surface and a light exit surface located at its front and back ends, wherein the light entrance surface and the light exit surface can be a plane or a curved surface; or, the outer contour surface of the light entrance portion 5 is a curved surface with a diameter gradually increasing from the back to the front, and its interior has a concave cavity structure that is concave forward, and a protrusion protruding backward is provided in the concave cavity; or, the light entrance portion 5 is a protrusion structure protruding backward.

[0083] Preferably, the upper and lower surfaces of the light guide are each provided with a concave or convex patterned structure, so that more light emitted from the light guide is reflected through the upper and lower surfaces of the light guide to the primary light-emitting surface, thereby improving light utilization efficiency. Alternatively, a coating layer is provided on the entire or partial upper and lower surfaces of the light guide to increase the reflectivity of light within the light guide. The coating layer may be an aluminum or silver coating layer. Furthermore, the refraction of light refracted by the groove 7 can be improved by adjusting the upper and lower heights of the groove 7 and the inclination direction and inclination of the front and rear side walls.

[0084] The second aspect of the present invention further provides a vehicle lamp module, comprising the vehicle lamp optical assembly described in the first aspect and at least one light source, wherein the light source corresponds to the light incident portion 5 on a one-to-one basis.

[0085] Preferably, the optical axis of the light source coincides with or forms a horizontal angle with the optical axis of the light incident portion 5, preferably between 0° and 15°. By forming a horizontal deflection angle of 0° to 15° between the optical axis of the light source and the optical axis of the light incident portion 5, the light emitted from the light source is directed to the left and right sides of the headlight module, achieving a horizontally outward light pattern.

[0086] Preferably, the light sources can be independently controlled to turn on and off, so that when the high beam is illuminated, the illumination area of ​​the headlights can be controlled by controlling the on and off of each light source to avoid the area where oncoming vehicles are located, thereby avoiding glare problems and achieving an intelligent anti-glare effect.

[0087] By providing the headlight optical assembly, a design with miniaturization and diversified shapes can be achieved.

[0088] A third aspect of the present invention further provides a vehicle lamp, comprising the vehicle lamp module described in the second aspect.

[0089] By providing the headlight module, the headlight can be designed with miniaturization and diversified shapes.

[0090] A fourth aspect of the present invention further provides a vehicle comprising the vehicle light described in the third aspect.

[0091] By providing the headlights, the vehicle can achieve a variety of design shapes, which is beneficial to improving the overall visual effect and aesthetics of the vehicle body.

[0092] In summary, the present invention, by providing a narrow and long secondary light-emitting surface 41, can achieve miniaturization and diversification in terms of volume and styling. The present invention can realize low-beam lighting, high-beam lighting, ADB adaptive high-beam, AFS cornering auxiliary lighting, and daytime running light functions, and has the characteristics of simple structure and diversified functions. The low-beam inflection point cutoff line structure 12 can meet the requirements of left-hand drive and right-hand drive separately or simultaneously, allowing vehicles in different regions of the world to share the same lighting system, avoiding repeated development and design of lighting. The headlight optical assembly of the present invention can be directly applied to the vehicle body without external mirrors, which can not only improve optical efficiency but also enhance visual effects in styling, meeting the current needs for miniaturization, high efficiency, and novel styling of headlights.

[0093] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0094] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0095] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A headlight optical assembly, characterized in that: include: A primary optical unit group having a plurality of primary optical units arranged side by side, wherein the primary optical units include a light entrance portion and a light guide portion, the light guide portion having a light entrance portion mounting surface and a primary light exit surface, the light entrance portion mounting surface being provided with at least one light entrance portion (5), the light entrance portion (5) being arranged to enable incident light to converge and exit to the light guide portion, and the light guide portion being arranged to guide the incident light to exit from the primary light exit surface; A secondary optical unit (4), the secondary optical unit (4) having a secondary light-emitting surface (41) and a secondary light-incident surface (42) corresponding to the primary light-emitting surface, wherein the secondary light-emitting surface (41) is a narrow and elongated smoothly curved surface; The primary optical unit is a low-beam inflection point primary optical unit (1), a low-beam widening primary optical unit (2), or a high-beam primary optical unit (3), The primary optical unit group comprises a low beam inflection point primary optical unit (1), a low beam widening primary optical unit (2) and a high beam primary optical unit (3); the low beam widening primary optical unit (2) is arranged between the low beam inflection point primary optical unit (1) and the high beam primary optical unit (3); the light guiding portion of the low beam widening primary optical unit (2) is a low beam widening light guiding portion (21); and a low beam widening cut-off line structure for forming a low beam widening cut-off line is provided on the lower surface of the low beam widening light guiding portion (21).

2. The headlight optical assembly according to claim 1, characterized in that: The light guiding parts of the multiple primary optical units in the primary optical unit group are connected as one, and the primary optical unit or the primary optical unit group is provided with an auxiliary light source on at least one side in the left and right directions of the light guiding part, and the light emitted by the auxiliary light source enters from the side of the light guiding part and is emitted from the primary light emitting surface.

3. The headlight optical assembly according to claim 2, characterized in that: A light-collecting structure (8) is provided between the auxiliary light source and the light-guiding portion.

4. The headlight optical assembly according to claim 1, wherein: The longitudinal section of the secondary light-emitting surface (41) is an arc convex forward, and the transverse section is a straight line or a curve extending in the left-right direction.

5. The headlight optical assembly according to claim 1, wherein: The light entrance portion (5) is a light-collecting cup structure, and the outer contour surface of the light entrance portion (5) is a curved surface whose diameter gradually increases from the back to the front.

6. The headlight optical assembly according to claim 1, characterized in that: The upper and lower surfaces of the light guide portion are both provided with a pattern structure or a coating layer.

7. The headlight optical assembly according to any one of claims 1 to 6, characterized in that: The light guiding portion of the low beam inflection point primary optical unit (1) is a low beam light guiding portion (11), and its primary light emitting surface is a low beam primary light emitting surface (111). The secondary light incident surface (42) corresponding to the low beam primary light emitting surface (111) includes at least one low beam secondary light incident surface (421), and the low beam secondary light incident surface (421) is a curved surface convex backward. The low beam secondary light incident surface (421) corresponds one-to-one with the light incident portion (5). A low beam inflection point cutoff line structure (12) for forming a low beam inflection point cutoff line is provided on the front boundary of the lower surface of the low beam light guiding portion (11).

8. The headlight optical assembly according to claim 7, characterized in that: The low beam inflection point cut-off line structure (12) includes at least one left-hand driving cut-off line structure (121), or includes at least one right-hand driving cut-off line structure (122), or includes at least one left-hand driving cut-off line structure (121) and at least one right-hand driving cut-off line structure (122), and the left-hand driving cut-off line structure (121) and the right-hand driving cut-off line structure (122) correspond one-to-one to the light entrance portion (5).

9. The headlight optical assembly according to claim 8, characterized in that: A zone III structure (6) for forming a zone III light shape of the low beam is provided at the lower front end of the low beam light guide portion (11); the zone III structure (6), the lower surface of the low beam light guide portion (11) and the rear end of the low beam light guide portion (11) form an upwardly concave groove (7); and the low beam inflection point cutoff line structure (12) is formed at the junction of the zone III structure (6) and the top of the groove (7).

10. The headlight optical assembly according to any one of claims 1 to 6, characterized in that: The low-beam widening light guide portion (21) and the secondary optical unit (4) are connected as one body.

11. The vehicle light optical assembly according to claim 10, wherein: A zone III structure (6) for forming a zone III light shape of the low beam is provided at the lower front end of the low beam widening light guide portion (21); the zone III structure (6), the lower surface of the low beam widening light guide portion (21), and the rear end of the low beam widening light guide portion (21) form an upwardly concave groove (7); and the junction between the zone III structure (6) and the top of the groove (7) forms the low beam widening cutoff line structure.

12. The headlight optical assembly according to any one of claims 1 to 6, characterized in that: The light-guiding portion of the high-beam primary optical unit (3) is a high-beam light-guiding portion (31), and its primary light-emitting surface is a high-beam primary light-emitting surface (311). The secondary light-entering surface (42) corresponding to the high-beam primary light-emitting surface (311) includes at least one high-beam secondary light-entering surface (422), and the high-beam secondary light-entering surface (422) is a curved surface convex backwards, and the high-beam secondary light-entering surface (422) corresponds one-to-one to the light-entering portion (5).

13. The headlight optical assembly according to any one of claims 1 to 6, characterized in that: The light guiding portion of the low beam inflection point primary optical unit (1) is a low beam light guiding portion (11), and the light guiding portion of the low beam widening primary optical unit (2) is a low beam widening light guiding portion (21). The front lower portions of the low beam light guiding portion (11) and the low beam widening light guiding portion (21) are both provided with a zone III structure (6) for forming a low beam zone III light shape, and a zone III light incident surface (61) of the zone III structure (6) is provided with a concave-convex structure (611).

14. The vehicle light optical assembly according to claim 13, wherein: An auxiliary light source is provided on the side of the zone III structure (6) of the low-beam light guide portion (11) or the low-beam widening light guide portion (21).

15. A vehicle light module, characterized in that: The vehicle light optical assembly comprises the vehicle light optical assembly according to any one of claims 1 to 14 and at least one light source, wherein the light source corresponds to the light incident portion (5) on a one-to-one basis.

16. The vehicle lamp module according to claim 15, characterized in that: The light sources can be independently controlled to turn on and off.

17. A vehicle lamp, characterized in that: A vehicle light module comprising any one of claims 15 to 16.

18. A vehicle, characterized in that: Including the vehicle lamp according to claim 17.

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