Optical module, vehicle lamp and vehicle

Abstract

The utility model provides an optical module, a vehicle lamp and a vehicle, and the optical module comprises a light source which is arranged at a light-emitting focus of a main reflecting surface or near the light-emitting focus; the reflecting component comprises the main reflecting surface, and the main reflecting surface comprises a root part and a light emitting end which are sequentially arranged in the main light emitting direction; the imaging focus of the main reflecting surface is positioned between the first lens and the second lens; the first lens is arranged in front of the reflecting component along the main light emitting direction and is used for adjusting light rays from a first direction; and the second lens is used for allowing the light rays transmitted by the first lens to pass through and adjusting the light rays from a second direction crossed with the first direction.

Description

Technical Field

[0001] The present application relates to the field of lighting technology, and particularly to an optical module, a vehicle headlight and a vehicle. Background Art

[0002] With the increasing maturity of vehicle headlight technology, higher requirements are also put forward for the optical performance such as the uniformity and width of the low beam and high beam of vehicles. At present, the mainstream solution used in vehicle headlight modules is a single-focus lens optical system, which requires a lens with a relatively large upper and lower opening. Such a solution occupies a relatively large volume in the up-and-down direction, and the overall length of the optical module in the front-to-back direction is relatively large.

[0003] In addition, the light pattern presented by the existing solution is prone to obvious color difference; and the requirement for assembly accuracy is also high. Slight deviation will cause a large deformation or deviation of the light pattern; in addition, the flexibility of light pattern adjustment is poor, and the personalized needs of different customers cannot be met. Summary of the Utility Model

[0004] In order to solve the above problems, the technical solutions adopted in the embodiments of the present application are as follows:

[0005] An optical module, comprising:

[0006] A light source, which is arranged at or near the light-emitting focus of the main reflecting surface;

[0007] A reflecting component, including the main reflecting surface, the main reflecting surface includes a root part and a light-emitting end which are arranged in sequence along the main light-emitting direction; the imaging focus of the main reflecting surface is located between the first lens and the second lens;

[0008] A first lens, which is arranged in front of the reflecting component along the main light-emitting direction and is used for adjusting light rays in a first direction; and

[0009] A second lens, which is used for allowing the light rays passing through the first lens to pass through and adjusting the light rays in a second direction intersecting with the first direction; the first focus of the first lens and the second focus of the second lens are both behind the light source.

[0010] In the present application, the imaging focus of the main reflecting surface is designed to be located between the first lens and the second lens. Since the light rays cross up and down at the imaging focus and then directly enter the second lens, the size in the up-and-down direction at the light-incident surface of the second lens is relatively small, and all of them can enter the second lens through the light-incident surface, avoiding leakage from the upper and lower edges of the second lens, and the light energy utilization rate is high. After the light rays converge, cross and pass through the second lens between the first lens and the second lens, they can be emitted. Finally, the size of the emitted light pattern in the up-and-down direction is also small, the light emission and imaging are more focused, the light efficiency is high, and it conforms to the current trend of small openings. Compared with the traditional structure, the length of the optical module is significantly shortened, and it will not occupy the space inside the vehicle head.

[0011] This application has low requirements for the installation position accuracy of multiple components such as the reflection component and the lens; it can flexibly adjust the display state of the light pattern to meet the personalized needs of different customers.

[0012] In some embodiments, the first focal point of the first lens and the second focal point of the second lens are at different positions in the main light output direction of the optical module.

[0013] In some embodiments, the first focal point is at the middle part of the root of the reflection component; in the main light output direction of the optical module, the second focal point is behind the root of the reflection component, and the distance between the second focal point and the first focal point is 1 - 3 mm.

[0014] In some embodiments, the distance between the second focal point and the first focal point is 1.5 - 2 mm.

[0015] In some embodiments, one side surface of the second lens close to / away from the first lens is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface lies is perpendicular to the second direction; or, one side surface of the first lens close to / away from the second lens is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface of the first lens lies is perpendicular to the first direction.

[0016] In some embodiments, the radius of curvature of the cylindrical surface on the surface of the second lens is 900 mm to 1500 mm.

[0017] In some embodiments, there are multiple first lenses, which are arranged side by side in a third direction forming an angle with the main light output direction, and the first lens close to the side is a side lens, and the converging light output direction of the side lens faces the side lens on the other side and the front of the main light output direction.

[0018] In some embodiments, the reflection component further includes: a second light - regulating surface, which is arranged behind the main reflection surface in the main light output direction and is close to the root of the main reflection surface, and is configured to receive the light transmitted to its surface and project it towards the rear of the main light output direction;

[0019] Or, the reflection component further includes a blocking and extinction surface, which is arranged behind the main reflection surface in the main light output direction, and the blocking and extinction surface and the main reflection surface are arranged in sequence in the direction away from the installation base surface; the blocking and extinction surface is configured to block and at least partially absorb the light projected onto its surface.

[0020] In some embodiments, with the installation base surface as a reference, the height of the side of the second light - regulating surface away from the main reflection surface is greater than the height of the side of the second light - regulating surface close to the main reflection surface; the angle β between the second light - regulating surface and the installation base surface is greater than or equal to 0° and less than or equal to 10°.

[0021] A vehicle lamp includes any one of the above-mentioned optical modules.

[0022] A vehicle includes any one of the above-mentioned vehicle lamps.

[0023] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, provides a detailed description as follows. Description of the Drawings

[0024] To more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present application and should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0025] Figure 1 It is the optical path simulation diagram of the present application;

[0026] Figure 2 It is the three-dimensional structure schematic diagram of the optical module provided by an embodiment of the present application;

[0027] Figure 3 It is the schematic diagram of the reflection component of the present application viewed from the front perspective of the main light output direction (also the Figure 7 front view A in

[0028] Figure 4 It is the top view schematic diagram of the first lens of the optical module provided by an embodiment of the present application for adjusting light;

[0029] Figure 5 It is the low beam light pattern diagram formed after the horizontal adjustment of the first lens and the vertical adjustment of the second lens are superimposed;

[0030] Figure 6 It is the side view of the optical module provided by another embodiment of the present application;

[0031] Figure 7 It is the side view of the reflection component, light source, and circuit board cooperating with each other provided by another embodiment of the present application;

[0032] Figure 8 For Figure 7 the optical path diagram of reducing stray light in the embodiment;

[0033] Figure 9 It is the side view of the reflection component, light source, and circuit board cooperating with each other provided by another embodiment of the present application;

[0034] Figure 10 It is the schematic diagram of a plurality of reflection components arranged side by side;

[0035] Figure 11 It is a schematic diagram of a lens mounting part provided by an embodiment of the present application;

[0036] Figure 12 It is a schematic structural diagram of a through groove provided by an embodiment of the present application;

[0037] Figure 13 It is another schematic structural diagram of a through groove provided by an embodiment of the present application;

[0038] Figure 14 It is a schematic diagram of a lens after demolding provided by an embodiment of the present application;

[0039] Figure 15 It is another schematic structural diagram of a through groove provided by an embodiment of the present application;

[0040] Figure 16 It is an assembly schematic diagram of a first lens and a reflection component provided by an embodiment of the present application;

[0041] Figure 17 is Figure 16 front view of;

[0042] Figure 18 is Figure 17 enlarged view of part A in;

[0043] Figure 19 is Figure 17 enlarged view of another embodiment of part A in;

[0044] Figure 20 is Figure 16 exploded view of;

[0045] Figure 21 It is a schematic diagram of a first lens provided by an embodiment of the present application.

[0046] In the figure:

[0047] 10. Reflection component; 101. Leather grain structure;

[0048] 20. Light source;

[0049] 30. Collimating and light-transmitting component; 31. First lens; 31a. Side lens; 32. Second lens; 32a. Mounting ear; 11. Main body part; 111. Light-incident surface; 1111. First light-incident sub-surface; 1112. Second light-incident sub-surface; 112. Light-emitting surface; 113. Connection surface; 12. Mounting part; 121. First surface; 122. Second surface; 13. Light-transmitting convex block; 131. Refracting surface; 1311. First refracting sub-surface; 1312. Second refracting sub-surface; 132. Demolding inclined surface;

[0050] 40. Circuit board;

[0051] 50. Irradiation area;

[0052] 60. Positioning structure; 61. Positioning block; 62. Positioning groove; 63. Welding bump;

[0053] 70. Installation clearance.

[0054] 100. Main reflecting surface; 110. Root; 120. Light-emitting end;

[0055] 200. Second light-adjusting surface; 210. Counterbore;

[0056] 300. Blocking extinction surface;

[0057] 400. Positioning and installation surface; 410. Positioning hole;

[0058] 500. Anti-plating groove;

[0059] 1. Body; 1-1. Light-incident surface; 1-2. Light-emitting surface;

[0060] 2. Installation part; 21. Threaded through hole; 22. Through groove; 221. First groove section; 2211. First wall; 222. Second groove section; 2222. Second wall; 23. First surface; 24. Second surface; 25. Positioning through hole; 26. Protruding part;

[0061] 3. Stabilizing part;

[0062] a. Installation base surface; λ. Symmetry reference plane. Detailed implementation manner

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0064] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0065] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0066] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0067] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0068] The following will describe in detail some embodiments of the present application with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0069] The following gives an exemplary description of the optical module provided by the present application:

[0070] Referring to Figures 1 - 3 , on the one hand, the present application provides an optical module, including:

[0071] A light source 20, the light source 20 is arranged at or near the light-emitting focus of the main reflecting surface 100;

[0072] A reflecting member 10, including the main reflecting surface 100, the main reflecting surface 100 includes a root portion 110 and a light-emitting end 120 arranged in sequence along the main light-emitting direction; the imaging focus of the main reflecting surface 100 is located between the first lens 31 and the second lens 32;

[0073] The first lens 31 is disposed in front of the reflection component 10 along the main light output direction and is used to adjust light in a first direction; and

[0074] The second lens 32 is used for the light transmitted through the first lens 31 to pass through and adjust light in a second direction intersecting the first direction; in the main light output direction (the X direction in the figure) of the optical module, both the first focal point and the second focal point are located behind the light source 20.

[0075] Specifically, the light source 20 is disposed near the light-emitting focal point of the main reflection surface 100, which means that the light source 20 is disposed at a position 0-10 mm away from the light-emitting focal point of the main reflection surface 100. The light emitted by the light source 20 is reflected by the main reflection surface 100 of the reflection component 10 and then emitted along the main light output direction (the X direction in the figure). It is sequentially adjusted by the first lens 31 in the first direction and the second lens 32 in the second direction, and finally projected forward from the light output side of the second lens 32. The projected light pattern, such as a low beam and / or high beam light pattern, is an inverted image of the main reflection surface 100 of the reflection component 10 (the upper edge of the light pattern presents a shape corresponding to the root 110 of the reflection component 10). In some embodiments, the first direction may be the horizontal direction and the second direction may be the vertical direction.

[0076] The light of the present application crosses up and down at the imaging focal point and then directly enters the second lens 32. Since the imaging focal point of the designed main reflection surface 100 is located between the first lens 31 and the second lens 32, the width dimension in the up and down direction at the light input surface of the second lens 32 after the light crosses is small, and all of it can enter the second lens 32 through the light input surface of the second lens 32, avoiding leakage from the upper and lower edges of the second lens 32, and the light energy utilization rate is high. After the light converges, crosses, and passes through the second lens 32 between the first lens 31 and the second lens 32, it can be emitted. Finally, the size of the emitted light pattern in the up and down direction is also small, the light emission and imaging are more focused, the light efficiency is high, and it conforms to the current trend of small openings. When the overall length of the optical module is considered, it is not necessary to stack the focal length of the reflection component 10 and the focal length of the lens as in the traditional solution. Therefore, compared with the traditional structure, the length of the optical module is significantly shortened and it will not occupy the space inside the vehicle head inward.

[0077] The present application uses two lenses to adjust the light pattern from different directions respectively, which can at least partially eliminate the aberration and chromatic aberration generated during unified adjustment.

[0078] The present application has low requirements for the installation position accuracy of multiple components such as the reflection component 10 and the lens. Even if there is a slight deviation, the impact on the light pattern is not significant; the display state of the light pattern can be flexibly adjusted to meet the personalized needs of different customers.

[0079] It should be noted that the above-mentioned focus form can be a single focus, a focal line or a focal plane according to the different forms of the lens surface, and the present application does not limit it.

[0080] In some embodiments, the second focus of the second lens 32 is behind the first focus of the first lens 31, that is, the second focus and the first focus are arranged at intervals in the front and back. Such a design can make the upper edge of the presented light pattern achieve the expected soft visual effect (not sharp), meeting the personalized needs of customers.

[0081] In some embodiments, the first focus is at the root 110 of the reflection component 10 or near the root 110 (the vicinity here means close to the root 110, and the distance between the first focus and the root 110 is within the range of 0-5 mm). In the main light-emitting direction of the optical module, the second focus of the second lens 32 is behind the first focus. In this case, the first focus and the second focus are spaced apart in the front and back, which can make the upper edge of the presented light pattern achieve the expected soft visual effect (not sharp), meeting the personalized needs of customers; however, when the second focus of the second lens 32 is behind the root 110, the upper edge of the finally projected light pattern will be significantly bent (for example, the middle part of the upper edge of the light pattern bulges upward), which cannot meet the straightness requirement of the regulations. Therefore, the middle part of the root 110 is designed to protrude in the direction away from the mounting base surface a (such as Figure 2 the surface of the radiator in ) of the reflection component 10 as a reference, and the middle part of the root 110 is curved in the direction away from the mounting base surface a (the upward direction along the Z axis in the figure), so that the root 110 forms a curved structure; alternatively, in the direction along the Z axis, it is designed that the distance between the middle part of the root 110 and the mounting base surface a is greater than the distance between the side part of the root 110 and the mounting base surface a.

[0082] That is, the middle part of the root 110 in the present application is designed as an upwardly curved curved structure that bends in the direction away from the mounting base surface a ( Figure 1 the upward direction along the Z axis in ). After the applicant cooperates with this design, the upper edge of the finally projected light pattern can achieve the expected basically straight effect and the light pattern is soft, as Figure 5 shown.

[0083] Refer to Figure 1 , in some embodiments, in the light-emitting direction (X direction) of the optical module, the first focus is at the middle part of the rear part of the root 110; in the light-emitting direction (X direction) of the optical module, the second focus is behind the middle part of the root 110 of the reflection component 10, and the distance between the second focus and the first focus is 1-3 mm.

[0084] Specifically, the first focal point of the first lens 31 is located at the middle part of the rear portion of the root 110 of the main reflecting surface 100. In this case, when the first lens 31 adjusts the light pattern in the first direction (such as the Y direction and the horizontal direction in the figure), after cooperating with the second lens 32 to adjust from the second direction (such as the Z direction and the vertical direction in the figure), it can ensure that the vertical line at the middle cut-off part of the upper edge of the light pattern is sharp and distinct.

[0085] In the light emitting direction (X direction) of the optical module, the second focal point is located behind the root 110 of the main reflecting surface 100. In this case, when the second lens 32 adjusts the light pattern in the second direction (such as the vertical direction), it can ensure that the overall upper edge of the light pattern looks softer. It has been verified that when the distance between the second focal point and the first focal point is greater than 3 mm, the imaging boundary of the upper edge is too blurred, and the clarity of the upper edge of the light pattern near the middle cut-off part is weak. When the distance between the second focal point and the first focal point is within the range of 1 - 3 mm, the imaging boundary of the upper edge of the light pattern is clear, the softness is better, and the middle cut-off part is more clearly and sharply displayed. More preferably, the distance between the second focal point and the first focal point is 1.5 - 2 mm.

[0086] Reference Figure 1 , in some embodiments, one side surface of the second lens 32 close to / away from the first lens 31 is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface is located is perpendicular to the second direction (such as the Z direction and the vertical direction in the figure).

[0087] Specifically, the cylindrical surface of the second lens 32 can converge light in the second direction. Taking the second direction as the vertical direction as an example, one side surface of the second lens 32 is a convex cylindrical surface, and when the light entering the second lens 32 exits, it is converged in the vertical direction, and a clear light pattern can be formed.

[0088] In some embodiments, the radius of curvature of the cylindrical surface on the surface of the second lens 32 is 900 mm to 1500 mm. After testing, when this parameter is adopted, the formed light pattern has a clear boundary, good softness, and high light pattern brightness.

[0089] Reference Figure 4 , in some embodiments, one side surface of the first lens 31 close to / away from the second lens 32 is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface of the first lens 31 is located is perpendicular to the first direction (such as the Y direction and the horizontal direction in the figure). Specifically, the cylindrical surface of the first lens 31 can converge light in the first direction. Taking the first direction as the horizontal direction as an example, the first lens 31 converges the light entering it once in the horizontal direction, and the adjusted light is then converged vertically a second time by the second lens 32 in the vertical direction. Adjusting in two directions in sequence can make the vertical line at the middle cut-off part of the upper edge of the light pattern sharp and distinct.

[0090] ReferenceFigure 2 , in some embodiments, there are multiple first lenses 31, which are arranged side by side in a third direction that forms an angle with the main light-emitting direction, and the first lens 31 near the side is a side lens 31a. The converging light-emitting direction of the side lens 31a faces the side lens 31a on the other side and the front of the main light-emitting direction. Specifically, multiple first lenses 31 can share the first lens 32. Taking the third direction as the width direction of the optical module as an example, the converging light-emitting direction of the side lens 31a near the side faces the side lens 31a on the other side and the front of the main light-emitting direction, which can fully expand the width range of the low-beam light pattern formed by the entire optical module in the third direction; moreover, the converging light-emitting direction of the side lens 31a near the side faces the side lens 31a on the other side, and the light is emitted obliquely forward after exiting from the light-emitting surface of the side lens 31a and does not irradiate the area directly in front of the side lens 31a. Therefore, there is no need to arrange the second lens 32 directly in front of the side lenses 31a on both sides, and the second lens 32 does not need to extend to the front of the side lens 31a. Thus, the size of the second lens 32 in the width direction of the entire optical module can be greatly reduced, saving material costs. Correspondingly, the distance between the mounting ears 32a on both sides of the second lens 32 is smaller, which is beneficial to reducing the mounting space size of the entire optical module on the vehicle body.

[0091] Reference Figures 6 - 8 , in some embodiments, the reflecting component 10 further includes: a second dimming surface 200, which is arranged behind the main reflecting surface 100 along the main light-emitting direction and is close to the root 110 of the main reflecting surface 100, and is configured to receive the light transmitted to its surface and project it toward the rear of the main light-emitting direction.

[0092] Specifically, the purpose of defining the main light-emitting direction in this application is also to distinguish it from the stray light projected backward. The main light-emitting direction is specifically Figure 6 the direction in which the light is projected forward from the rear after the light is converged by the reflecting component in some products to form an expected light pattern. In some products, the form of the reflecting component can be a reflector or a mirror, etc., and the projection form is reflection; of course, in some other embodiments, it can also be changed to forms such as light guide-guided dimming and TIR-converging dimming. Reference Figure 6 , the main reflecting surface 100 receives part of the light emitted by the light source 20 and converges and emits light forward to form an expected light pattern such as high beam or low beam; the light irradiated on the second dimming surface 200 will be adjusted by the second dimming surface 200 and projected toward the rear (directly rearward or deviated from the direct rearward by a certain angle) along the main light-emitting direction (the projection form includes guiding or reflecting), so as to avoid scattered emission to form stray light that affects the beauty of the light effect. After being adjusted by the reflecting component 10 of this embodiment, the uncontrollable stray light can also be weakened, and the presented light pattern is clear, so that the oncoming lane is not affected and there is no obvious bright line in front of the vehicle to attract the driver's attention, ensuring driving safety;

[0093] In the present application, the light rays hitting the second light-adjusting surface 200 are projected backward in a concentrated manner, and very little is absorbed by the second light-adjusting surface 200, thereby avoiding burnout caused by heat absorption and improving the safety and service life of the whole vehicle; since the heat of the reflecting component 10 is controllable, a material with general heat-resistant performance can be selected, reducing the material cost.

[0094] In this embodiment, there is no need to add new components or structural parts in the optical system to block stray light, avoiding problems such as the new components occupying space, affecting the light effect, increasing the product volume, and increasing the design difficulty, improving the system tolerance and design flexibility; it also saves the cost increase brought by adding parts.

[0095] In the present application, the preset reflection light exit direction of the main reflection surface 100 of the reflecting component 10 is the main light exit direction, and the main reflection surface 100 is a surface structure. As Figure 6 , in the vertical section extending along the main light exit direction (roughly along the front-back direction), the light exit end 120 of the main reflection surface 100 is in a dot shape, while as Figure 3 , in the three-dimensional space, the light exit end 120 of the main reflection surface 100 is in the form of a light exit edge, that is, the light exit end 120 is arc-shaped when viewed from the front of the main light exit direction.

[0096] Refer to Figure 9 , in some embodiments, the projected size L1 of the second light-adjusting surface 200 in the longitudinal section extending along the main light exit direction and perpendicular to the installation base surface a is 1 mm - 8 mm. Specifically, the light source 20 is usually assembled in cooperation with the reflecting component 10. During installation, the light source 20 is arranged on the installation base surface a, and the light exit surface of the light source 20 faces the main reflection surface 100 and the second light-adjusting surface 200; taking the installation base surface a as the horizontal plane as an example, the longitudinal section perpendicular to the installation base surface a is a longitudinal vertical section. At this time, the projected size L1 of the second light-adjusting surface 200 in the longitudinal section perpendicular to the installation base surface a is 1 mm - 8 mm. Within this range, the projected size L1 of the second light-adjusting surface 200 in the longitudinal section will not be too small to result in a small light receiving area and a small amount of light projected backward. It has been verified that when L1 is less than 1 mm, the working temperature of the reflecting component 10 reaches about 200 °C; the L1 size will not be too large to cause an increase in material cost and occupation of installation space. In this embodiment, when the projected size L1 is 1 mm - 8 mm, the formed stray light is significantly reduced, and the working temperature of the reflecting component 10 is also reduced to about 150 - 160 °C. Therefore, a size range with better implementation effects is given in this embodiment. The above explains the size of the second light-adjusting surface 200 from the perspective of the projected size. If the main light exit direction is used as the reference, in the direction along the main light exit direction, the distance between the root and the side of the second light-adjusting surface away from the main reflection surface is 1 mm - 8 mm, and the same technical effect can be achieved.

[0097] In some embodiments, when a longitudinal section passing through the rearmost end of the root portion 110 is selected, in the main light-emitting direction, the distance range between the rear end of the root portion 110 and the side edge of the second light-dimming surface 200 away from the main reflecting surface 100 is 1 mm - 5 mm. In this embodiment, since the rear end of the root portion 110 is at a more rearward position in the main light-emitting direction, the distance range between the rear end of the root portion 110 and the side edge of the second light-dimming surface 200 away from the main reflecting surface 100 is selected as a relatively small value of 1 mm - 5 mm. When this size range is adopted, the formed stray light is significantly reduced, and the working temperature of the reflecting component 10 is also reduced to 150 - 160 °C.

[0098] Reference Figure 9 , in some embodiments, the side edge of the second light-dimming surface 200 close to the main reflecting surface 100 is connected to the root portion 110.

[0099] Specifically, the second light-dimming surface 200 is connected to the root portion 110 of the main reflecting surface 100, and there is no gap between them, so that no light leaks from the gap between the main reflecting surface 100 and the second light-dimming surface 200, avoiding the uncontrolled escape of light and also avoiding the light exiting to the invalid area and reducing the main light type display brightness.

[0100] In some embodiments, the main reflecting surface 100 and the second light-dimming surface 200 are formed by coating a reflective layer on the surface of a basic structure (such as a mirror substrate). Specifically, the reflective layer can be a material layer with certain reflection ability such as an aluminum layer. The main reflecting surface 100 and the second light-dimming surface 200 coated with the reflective layer achieve the expected light-dimming effect; of course, in other embodiments, other processes such as electroplating and electroless plating can also be used, and materials with certain reflective ability such as metals and plastics can also be selected to directly integrally form a mirror with surface light-dimming ability for the main reflecting surface 100 and the second light-dimming surface 200.

[0101] In some embodiments, the material of the reflecting component 10 is PC-HT (high-temperature resistant PC, copolycarbonate) or PEI (polyetherimide, abbreviated as PEI). The surface of PC-HT or PEI material is relatively easy to bond the reflective layer and will not fall off due to long-term use, ensuring the structural stability.

[0102] Reference Figure 7 and Figure 8, in some embodiments, with the installation base surface a as a reference, the height of one side of the second light-dimming surface 200 away from the main reflection surface 100 is greater than the height of the side of the second light-dimming surface 200 close to the main reflection surface 100. In the figure, the case where the installation base surface a is a horizontal plane is taken as an example. In this embodiment, the height of the rear part of the main reflection surface 100 along the main light-emitting direction is greater than the height of the front part, which is beneficial to project the light backward along the main light-emitting direction. Further, the included angle β between the second light-dimming surface 200 and the installation base surface a is greater than or equal to 0° and less than or equal to 10°. If the inclination angle is too large, there may be light reflected backward and upward, increasing the control difficulty.

[0103] Reference Figure 7 and Figure 3 , in some embodiments, the second light-dimming surface 200 is a curved surface concave in the direction away from the installation base surface a. The concave curved surface has a converging effect on the light, and can converge the light and then project it backward in the main light-emitting direction. The projection efficiency is high, and it can also prevent the light projected by the second light-dimming surface 200 from diverging into scattered light again.

[0104] Reference Figure 7 and Figure 8 , in some embodiments, it further includes a blocking and extinction surface 300, which is arranged behind the second light-dimming surface 200 along the main light-emitting direction, and the blocking and extinction surface 300 and the main reflection surface 100 are arranged in sequence in the direction away from the installation base surface a; the blocking and extinction surface 300 is configured to block and at least partially absorb the light projected backward by the second light-dimming surface 200, and then reflect the light in the direction away from the second light-dimming surface 200.

[0105] After the light projected backward by the second light-dimming surface 200 hits the blocking and extinction surface 300, the energy of the light reflected after being partially absorbed by the blocking and extinction surface 300 is weakened twice. The small amount of reflected light hits the circuit board 40 on the installation base surface a, and its energy is far from enough to burn the circuit board 40. Moreover, the energy of the light hitting the circuit board 40 after being weakened twice is very small, and it is basically not reflected into high-intensity stray light after being absorbed by the circuit board 40 on the installation base surface a; a small amount of light that may be reflected forward by the circuit board 40 on the installation base surface a can also have a brightness gain for the main light pattern.

[0106] By implementing this solution, the light projected backward and escaping from the second light-dimming surface 200 can be regulated, avoiding the uncontrolled projection of the light projected backward to form irregular stray light in a certain area or causing the temperature rise in a certain area, and also avoiding excessive light leakage from the rear, which reduces the brightness of the light pattern display.

[0107] Reference Figure 7In some embodiments, the angle α between the blocking extinction surface 300 and the second dimming surface 200 ranges from 90° to 170°. It has been verified that when the angle is too large, the amount of light hitting the blocking extinction surface 300 is too small, and only part of the light projected backward can be adjusted. The light reflected to the circuit board will be reflected backward, and the brightness gain of the light type is small; when the angle is too small, part of the light reflected by the blocking extinction surface 300 cannot hit the circuit board 40 on the mounting base a and is absorbed. These lights may also be directly and irregularly reflected forward to form stray light that affects the light type.

[0108] As a preferred embodiment, the angle α between the blocking extinction surface 300 and the second dimming surface 200 has a value range of 115°-135°. It has been verified that when this angle range is selected, the amount of light hitting the blocking extinction surface 300 is relatively large, and the circuit board 40 on the mounting base surface a will reflect more of the light that hits its surface after being absorbed forward and has a brightness enhancement gain for the main light type; and when this angle range is selected, the reflected light will basically hit the circuit board 40 on the mounting base surface a and be absorbed, and the amount of stray light is minimal.

[0109] refer to Figure 9 In some embodiments, when the reflective component 10 is installed, the end of the blocking extinction surface 300 away from the second dimming surface 200 is fixed on the mounting base surface a. With the mounting base surface a as a reference, the angle γ between the blocking extinction surface 300 and the mounting base surface a ranges from 10° to 80°. It has been verified that when the angle is too small, the amount of light hitting the blocking extinction surface 300 is relatively small, and only a part of the light projected backward can be adjusted. The light reflected to the circuit board will be reflected backward, and the brightness gain of the light type is small; when the angle is too large, part of the light reflected by the blocking extinction surface 300 cannot hit the circuit board 40 on the mounting base surface a and is absorbed. These lights may also be directly and irregularly reflected forward to form stray light that affects the light type.

[0110] As a preferred embodiment, the angle γ between the blocking and extinction surface 300 and the mounting base surface a is in the range of 45°-55°. It has been verified that when this angle range is selected, a large amount of light hits the blocking and extinction surface 300, and the circuit board 40 will also reflect more light that hits its surface and is absorbed forward, thereby increasing the brightness of the main light type; and when this angle range is selected, the light reflected by the blocking and extinction surface 300 can basically hit the circuit board 40 on the mounting base surface a and be absorbed.

[0111] refer to Figure 3 In some embodiments, the blocking extinction surface 300 forms a stripe structure. The stripe structure disperses the light energy through multiple reflections and scattering, thereby reducing the intensity of the light that contacts its surface. Furthermore, whether it is horizontal stripes, vertical stripes or mesh stripes, it can achieve the desired purpose of scattering light and reducing light intensity to a certain extent.

[0112] In this application, by providing a blocking extinction surface 300 and introducing a stripe structure, not only the light reflected and escaped from the second dimming surface 200 is blocked, absorbed, and reflected onto the circuit board 40 on the mounting base surface a, but also the intensity of the light is effectively weakened through the interaction with the stripe structure, thereby greatly improving the temperature control safety performance and display light effect of the module.

[0113] Reference Figure 3 , in some embodiments, one side of the blocking extinction surface 300 close to the second dimming surface 200 is connected to one side of the second dimming surface 200 far from the main reflection surface 100.

[0114] Specifically, the blocking extinction surface 300 is connected to the second dimming surface 200 without a gap therebetween, so that no light leaks from the gap between the second dimming surface 200 and the blocking extinction surface 300, avoiding the uncontrolled escape of the light reflected by the second dimming surface 200 or the blocking extinction surface 300, and also avoiding the light exiting to the invalid area and reducing the display brightness.

[0115] Reference Figure 3 , in some embodiments, a plating-resistant groove 500 is provided on one side of the second dimming surface 200 close to the blocking extinction surface 300. The plating-resistant groove 500 serves as the boundary between the second dimming surface 200 and the blocking extinction surface 300. Designing the plating-resistant groove 500 can prevent the reflective layer on the surface of the second dimming surface 200 from spreading to the blocking extinction surface 300, avoiding the strong reflective effect after the blocking extinction surface 300 adheres to the reflective layer and then directly reflecting the light onto the circuit board 40 to cause it to heat up significantly.

[0116] Therefore, after the plating-resistant groove 500 is provided, it is beneficial for the blocking extinction surface 300 to play the expected role of blocking and reducing light; moreover, the plating-resistant groove 500 is a structure recessed away from the mounting base surface a and does not protrude from the second dimming surface 200, and does not block the light path, thereby avoiding affecting the normal realization of the dimming function of this application.

[0117] Reference Figure 7 and Figure 3 , in some embodiments, it further includes a positioning and mounting surface 400, which is arranged behind the blocking extinction surface 300 along the main light-emitting direction and is configured to be positioned and mounted on the mounting base surface a; one side of the positioning and mounting surface 400 close to the blocking extinction surface 300 is connected to one side of the blocking extinction surface 300 far from the second dimming surface 200.

[0118] Specifically, the positioning holes 410 on the surface of the positioning and mounting surface 400 are sleeved on the positioning pins on the surface of the mounting base surface a, so as to be fixed to the mounting base surface a, and the position of the reflection component 10 of the present application is thus fixed. Moreover, the positioning and mounting surface 400 is connected to the blocking and light extinction surface 300, and there is no gap between the two, so that no light leaks from the gap between the positioning and mounting surface 400 and the blocking and light extinction surface 300, avoiding the uncontrolled escape of the light reflected by the blocking and light extinction surface 300 and also avoiding the light being emitted to the ineffective area to reduce the display brightness.

[0119] Reference Figure 3 , in some embodiments, the main reflection surface 100 is a paraboloid with a single focus or an ellipsoid with two foci. Of course, the shapes of the paraboloid-like and ellipsoid-like surfaces formed by making approximate adjustments on the basis of the standard paraboloid and the standard ellipsoid are also within the protection scope of the present application.

[0120] Reference Figure 3 and Figure 10 , in some embodiments, the number of the reflection components 10 is multiple, and they are arranged side by side in a direction forming an angle with the main light-emitting direction, and at least two adjacent second light-adjusting surfaces 200 are connected.

[0121] Specifically, the angle is an acute angle greater than 0°. The number of the reflection components 10 is multiple and they are arranged side by side. Multiple main reflection surfaces 100 can form personalized light patterns in different forms; at least two adjacent second light-adjusting surfaces 200 are connected. The connected multiple second light-adjusting surfaces 200 are longer and have a larger extended area. The second light-adjusting surfaces 200 can project the stray light leaking from the adjacent reflection components 10 backward along the main light-emitting direction. Thus, the respective second light-adjusting surfaces 200 cooperate with each other to further weaken the uncontrollable stray light, further reducing the influence on the oncoming lane and the driver of the vehicle itself. The amount of stray light absorbed by each reflection component as a whole can be further reduced, and the burning risk is also further reduced, which is beneficial to improving the safety and service life of the whole vehicle and reducing the material cost.

[0122] Reference Figure 3 , in some embodiments, the surface of the second light-adjusting surface 200 is provided with a sunk groove 210. The sunk groove 210 is recessed in a direction away from the mounting base surface a, and both ends of the length direction of the sunk groove 210 extend forward to the root 110 of the main reflection surface 100 and extend backward to the part where the second light-adjusting surface 200 is connected to the blocking and light extinction surface 300 respectively.

[0123] Specifically, on the one hand, the cross-section of the groove 210 is in a bent line shape, so that when the light is projected along the main light emitting direction, a light pattern with a cutoff edge can be formed in front of the main light emitting direction; on the other hand, the groove 210 is recessed to a greater depth in the direction away from the mounting base surface a, and each groove wall surface of the groove 210 has a more obvious convergence effect on the stray light entering therein, and these light rays can be converged and concentrated and then projected toward the rear of the main light emitting direction, with high projection efficiency, and can also prevent the light projected from the surface of the second dimming surface 200 from diverging into scattered light again.

[0124] On the other hand, when the lens is assembled to the heat sink by screws, the lens may crack due to the lens material, reducing the yield rate of the product. Even if the lens does not crack during installation, there is still a risk of cracking during later use, affecting the optical effect of the lens.

[0125] To this end, in some embodiments, the second lens 32 is taken as an example to illustrate the improved method of the present application. The second lens 32 includes a body and a mounting portion, and the mounting portion is arranged on the body; wherein the mounting portion is provided with a threaded through hole, and the hole wall of the threaded through hole is provided with a through groove penetrating the mounting portion to separate the hole wall of the threaded through hole; the groove width of the through groove gradually increases along the axial direction of the threaded through hole, and the through groove includes a first groove section and a second groove section adjacent to each other, and the groove wall of the connected first groove section is not coplanar with the groove wall of the second groove section; the groove width dimension of the end of the first groove section away from the second groove section is d1㎜, the groove width dimension of the connection between the first groove section and the second groove section is d2㎜, and the groove width dimension of the end of the second groove section away from the first groove section is d3㎜, satisfying: d3>d2>d1. By setting a through groove on the hole wall of the threaded through hole, and the through groove passes through the mounting part, the stress when the screw is tightened can be released, and the mounting part (threaded through hole) is avoided from cracking; the through groove includes a first groove section and a second groove section adjacent to each other, the groove wall of the connected first groove section and the groove wall of the second groove section are not coplanar, and the groove width of the first groove section and the second groove section gradually increases in the direction from the first groove section to the second groove section, and the groove width of the second groove section is greater than the groove width of the first groove section. Such a setting avoids the cracking of the mounting part (threaded through hole) and can also avoid the tearing of the lens (threaded through hole) when demolding, thereby improving the product yield and reducing the production cost. The following is a detailed explanation.

[0126] Specific reference Figure 11 and Figure 13The second lens 32 includes a body 1 and a mounting portion 2, wherein the mounting portion 2 is arranged on the body 1, and the body 1 is mounted in the vehicle lamp through the mounting portion 2, and the body 1 is used to adjust the light of the vehicle lamp; a threaded through hole 21 is provided on the mounting portion 2, and when the lens is installed, the lens is fixed in the vehicle lamp by screws cooperating with the threaded through hole 21; in this embodiment, a through groove 22 penetrating the mounting portion 2 is provided on the hole wall of the threaded through hole 21, and the through groove 22 separates the hole wall of the threaded through hole 21, that is, an opening (through groove 22) is provided on the side wall of the mounting portion 2, and when the lens is installed (i.e., the process of screwing the screw into the threaded through hole 21), such a setting can release stress and avoid cracking of the mounting portion 2 (threaded through hole 21). In this embodiment, the groove width of the through groove 22 gradually increases in the axial direction of the threaded through hole 21, and the through groove 22 includes a first groove section 221 and a second groove section 222 adjacent to each other, the groove wall of the connected first groove section 221 and the groove wall of the second groove section 222 are not coplanar (an angle not equal to 180° is formed between the two connected groove walls), the groove width dimension of the end of the first groove section 221 away from the second groove section 222 is d1㎜, the groove width dimension of the connection between the first groove section 221 and the second groove section 222 is d2㎜, and the groove width dimension of the end of the second groove section 222 away from the first groove section 221 is d3㎜, satisfying: d3>d2>d1. The widths of the first groove section 221 and the second groove section 222 gradually increase in the direction from the first groove section 221 to the second groove section 222, and the groove width of the second groove section 222 is greater than the groove width of the first groove section 221. This arrangement can prevent the mounting portion 2 (threaded through hole 21) from cracking and can also prevent the lens (threaded through hole 21) from being pulled during demolding (specifically, as shown in FIG. Figure 11 and Figure 14 As shown, when the lens is demolded, the mold needs to be pulled out of the through groove 22. The two sides of the mold will exert relative friction on the groove walls on both sides of the through groove 22. When the relative friction is large enough, the groove walls of the through groove 22 will be driven to move. When the groove walls on both sides are subjected to unequal forces, the two sides of the through groove 22 will be misaligned. When the groove walls on both sides are subjected to equal forces, the two sides of the through groove 22 will be displaced along the demolding direction. Both situations will cause the lens to be strained. The specific demolding direction is, for example, Figure 11 In the perspective, the mold moves upward to demold the lens. In the present application, the first groove section 221 and the second groove section 222 have an angle between their same-side groove walls. At this time, the groove walls of the first groove section 221 and the second groove section 222 connected to the mold respectively have an angle with the relative friction forces f1 and f2, so that part of the two friction forces f1 and f2 are offset and the combined force is reduced, thereby reducing the probability of the product being pulled when demolding), and also improving the product yield and reducing production costs.

[0127] It should be noted that in one embodiment, in the axial direction of the threaded through hole 21, the mounting portion 2 has two opposite faces, namely the first face 23 and the second face 24. Taking the first face 23 as a reference, the slope of the groove wall of the first groove section 221 connected on the same side is greater than that of the second groove section 222, that is, the first groove section 221 is steeper than the second groove section 222. As Figure 13 shown in the groove wall on the right side of the through groove 22, the groove wall of the second groove section 222 is more inclined to the right than the groove wall of the first groove section 221; Figure 13 The groove wall on the left side of the through groove 22 in the middle is not specifically limited in this embodiment, as long as it does not interfere with the upward demolding operation of the mold. For example, in this embodiment, the slope of the groove wall of the first groove section 221 on the left is less than that of the second groove section 222, and the groove wall of the second groove section 222 is perpendicular to the top surface of the mounting portion 2. In some embodiments, the slope of the groove wall of the first groove section 221 on the left can also be greater than that of the second groove section 222.

[0128] In addition, it should be noted that when an object is deformed due to an external cause, internal forces that interact with each other are generated between the various parts of the object. The internal force per unit area is called stress. In this embodiment, the external cause is the extrusion force of the screw on the threaded through hole 21 when the screw is engaged with the threaded through hole 21; by providing the through groove 22, cracking of the mounting portion 2 caused by excessive stress is avoided. The groove widths of the above-mentioned first groove section 221 and the second groove section 222 are the distances between the two groove walls in the transverse direction ( Figure 13 viewing angle) of the through groove 22. In addition, it should be noted that in this embodiment, the groove width of the through groove 22 gradually increases linearly, that is, the groove walls of the through groove 22 are arranged in a plane. The following embodiments will be described with the groove walls of the through groove 22 arranged in a plane as an example; in some embodiments, the groove width of the through groove 22 can also gradually increase non-linearly. For example, in the direction from the first groove section 221 to the second groove section 222, the increase amplitude is first large and then small. With such a setting, the groove walls of the through groove 22 are arranged in a concave curved surface, or in some embodiments, the increase amplitude is first small and then large, and the groove walls of the through groove 22 are arranged in a convex curved surface, which is not limited thereto.

[0129] Refer to Figure 12 , in one embodiment, the through groove 22 has a symmetric reference plane (such as Figure 12 the middle plane λ shown below, the same hereinafter). The first groove section 221 has two opposite first walls 2211, and the second groove section 222 has two opposite second walls 2222. The two first walls 2211 are symmetrically arranged on both sides of the symmetric reference plane, and the two second walls 2222 are symmetrically arranged on both sides of the symmetric reference plane, that is, the through groove 22 is symmetrically arranged with respect to the symmetric reference plane; the angle between the first wall 2211 and the symmetric reference plane is α, and the angle between the second wall 2222 and the symmetric reference plane is β (such as Figure 12As shown, in order to facilitate the representation of angles α and β in the figure, two planes parallel to the symmetric reference plane intersect the first wall 2211 and the second wall 2222 respectively to obtain α and β, satisfying: β > α. The through groove 22 is symmetrically arranged with respect to the symmetric reference plane, which is beneficial to the design of the lens mold and effectively improves the uniformity of the force when the screw is connected to the threaded through hole 21.

[0130] It should be noted that in this embodiment, the slope of the first wall 2211 connected on the same side is greater than that of the second wall 2222, and the groove walls on both sides of the through groove 22 (i.e., the first wall 2211 and the second wall 2222) are set in this way. When β > α, the opening degree of the second groove segment 222 is greater than that of the first groove segment 221, that is, the groove width of the first groove segment 221 is smaller than that of the second groove segment 222. The first groove segment 221 with a smaller groove width can release stress to avoid lens cracking, and at the same time, it can ensure the tight connection between the screw and the threaded through hole 21 and the stable installation of the lens. The second groove segment 222 with a larger groove width can avoid scratches on both sides of the through groove 22 during lens demolding.

[0131] Refer to Figure 12 , in an embodiment, 1° ≤ α ≤ 5°, 5° ≤ β ≤ 15°, β > α, α is, for example, 1°, 2°, 3°, 4°, 5°, etc., and β is, for example, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, etc. In this way, within the above value range, the settings of the first groove segment 221 and the second groove segment 222 can not only ensure the stable connection between the lens and the radiator surface (the lens will not fall off from the connection with the radiator), but also ensure that no scratches will occur on both sides of the through groove 22 during demolding, and at the same time, it can release stress to avoid lens cracking.

[0132] The following combines specific embodiments to evaluate the performance of the technical solutions provided by the embodiments of the present application.

[0133] It should be noted that for each angle combination in the following embodiments, 20 samples were tested. The screws were tightened in the threaded through hole 21 of the lens in two ways: automatic tightening and manual tightening, so as to form a comparison; when automatically tightening the screw, the tightening torque was 0.8 N·m and the rotation speed was 200 LPM; when manually tightening the screw, the tightening torque was 1.2 N·m and the rotation speed was 500 LPM. Observe whether the samples with different angle combinations are cracked (by visual inspection), and conduct a vibration test on the lens to record whether there is a situation of lens detachment (by visual inspection). The specific parameters and test results are shown in Table 1.

[0134] Table 1

[0135]

[0136] It should be noted that, as can be seen from Table 1, the above table provides examples with α being 1°, 2°, 3°, 4°, 5° and a comparative example with α being 6°. For each value of α, the corresponding values of β are 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15° for the examples and 2°, 3°, 4°, 16° for the comparative examples. Among them, "×" in the table indicates that the product cannot be prepared, and "√" in the table indicates that the lenses have all passed the cracking test and the vibration test, and there is no cracking or falling off of the lenses in the samples. In addition, from the table, when the values of α and β are small, the actual product will have a situation of strain, and in addition, it will also cause cracking of the lenses. When the values of α and β are large, the lenses will have problems of vibrating and falling off during the vibration test, resulting in fixing failure (that is, the connection between the screw and the threaded through hole 21 fails). When the values of α and β are within the above value range, the effect is the best. The settings of the first groove section 221 and the second groove section 222 can not only ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), but also ensure that there is no strain on both sides of the through groove 22 during demolding, and at the same time can release stress and avoid cracking of the lenses.

[0137] Optionally, α = 3° and β = 10°. The difference between α and β is moderate, and the yield rate of the lens production process is relatively high. When the difference between α and β is small, that is, the first wall 2211 and the second wall 2222 tend to be coplanar. At this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be relatively large (when demolding, the frictional force f1 of the mold relative to the first wall 2211 and the frictional force f2 of the mold relative to the second wall 2222 tend to be collinear, and the resultant force is relatively large at this time). The actual product is more likely to have strain and the yield rate is reduced. When the difference between α and β is large, the first wall 2211 and the second wall 2222 form a large angle. At this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be relatively small (when demolding, there is an angle between the frictional force f1 of the mold on the first wall 2211 and the frictional force f2 of the mold on the second wall 2222, and some component forces will be offset, that is, the resultant force is relatively small at this time), which is more conducive to smooth demolding. However, when the difference between α and β is large, the tightening force of the screw on the threaded through hole 21 is insufficient. After the lens is installed, the phenomenon of vibrating and falling off is more likely to occur than when the difference between α and β is moderate. Therefore, when the difference between α and β is moderate, the yield rate of the lens production process is relatively high. It can ensure the stability of the connection between the lens and the radiator (the lens will not fall off from the connection with the radiator), and can also ensure that there is no strain on both sides of the through groove 22 during demolding.

[0138] In one embodiment, 0.5 ≤ d1 ≤ 1.1, 0.9 ≤ d2 ≤ 1.5, 1.2 ≤ d3 ≤ 2.0; It has been verified that when d1, d2, and d3 are within this range, it can not only ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), but also ensure that no scratches are generated on both sides of the through groove 22 during demolding. Preferably, d1 = 0.8, d2 = 1.2, and d3 = 1.6.

[0139] Referring to Figure 15 , in one embodiment, in the axial direction of the threaded through hole 21, the mounting portion 2 has two opposite surfaces, namely the first surface 23 and the second surface 24. The first surface 23 intersects the first groove segment 221, that is, the first surface 23 is the bottom surface of the mounting portion 2 ( Figure 11 , Figure 15 in the perspective); the first groove segment 221 has two opposite first walls 2211, and the second groove segment 222 has two opposite second walls 2222; the included angle between the first wall 2211 and the first surface 23 is δ, and the included angle between the second wall 2222 and the second surface 24 is γ, satisfying: δ + γ > 180°.

[0140] It should be noted that, as can be seen from Figure 15 , the included angle between the first wall 2211 and the second wall 2222 is θ. When δ + γ > 180°, it can be known that θ < 180° ( Figure 15 in the perspective, the mounting portions 2 on both sides of the through groove 22 are pentagons, and the sum of their interior angles is 540°. Removing two right angles of 90°, it can be known that when δ + γ > 180°, θ < 180°); with such a setting, the opening degree of the second groove segment 222 is greater than that of the first groove segment 221 (that is, the groove wall slope of the first groove segment 221 connected on the same side in the figure is greater than that of the second groove segment 222), and the top of the second wall 2222 is more biased to the left than the top of the first wall 2211 ( Figure 15 the left first wall 2211 and the second wall 2222 in the perspective), that is, the groove width of the first groove segment 221 is smaller than that of the second groove segment 222. The first groove segment 221 with a smaller groove width can release stress to avoid lens cracking while ensuring the tight connection between the screw and the threaded through hole 21 and ensuring the stability of lens installation. The second groove segment 222 with a larger groove width can avoid scratches on both sides of the through groove 22 during lens demolding.

[0141] In one embodiment, 85° ≤ δ ≤ 89°, 95° ≤ γ ≤ 105°, δ + γ > 180°. δ can be, for example, 85°, 86°, 87°, 88°, 89°, etc.; γ can be, for example, 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102°, 103°, 104°, 105°, etc. In this way, within the above value range, the settings of the first slot section 221 and the second slot section 222 can not only ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), but also ensure that no scratches are generated on both sides of the through slot 22 during demolding, and at the same time, stress can be released to avoid cracking of the lens.

[0142] The following combines specific embodiments to evaluate the performance of the technical solutions provided by the embodiments of the present application.

[0143] It should be noted that for each angle combination in the following embodiments, 20 samples were tested. The screws were fastened in the threaded through holes 21 of the lens in two ways: automatic tightening and manual tightening, so as to form a comparison. When automatically tightening the screws, the tightening torque was 0.8 N·m and the rotation speed was 200 LPM; when manually tightening the screws, the tightening torque was 1.2 N·m and the rotation speed was 500 LPM. Observe whether the samples with different angle combinations are cracked (visually), and conduct a vibration test on the lens to record whether there is a situation of lens detachment (visually). The specific parameters and test results are shown in Table 2.

[0144] Table 2

[0145]

[0146]

[0147] It should be noted that, as can be seen from Table 2, the above table provides embodiments with δ being 85°, 86°, 87°, 88°, 89° and a comparative example with α being 84°. And for each value of δ, embodiments with γ being 95°, 96°, 97°, 98°, 99°, 100°, 101°, 102°, 103°, 104°, 105° are provided, as well as comparative examples with β being 92°, 93°, 94°, 106°. Among them, "×" in the table indicates that the product cannot be prepared, and "√" in the table indicates that the lenses all pass the cracking test and the vibration test, and there is no situation where the lenses crack or fall off in the samples. In addition, from the table, when the value of δ is relatively large and the value of γ is relatively small, the actual product will show a situation of strain, and in addition, it will also cause the cracking of the lenses. When the value of δ is relatively small and the value of γ is relatively large, the lenses will have a problem of vibrating and falling off during the vibration test, resulting in fixing failure (that is, the connection between the screw and the threaded through hole 21 fails). When the values of δ and γ are within the above value range, the effect is the best. The settings of the first groove section 221 and the second groove section 222 can not only ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), but also ensure that when demolding, there will be no strain on both sides of the through groove 22, and at the same time, it can release stress and avoid the cracking of the lenses.

[0148] Optionally, δ = 87° and γ = 100°. The difference between δ and γ is moderate, and the yield rate in the lens production process is relatively high. When the difference between δ and γ is relatively small, that is, the first wall 2211 and the second wall 2222 tend to be more coplanar (such as Figure 15 the left groove wall in the figure, when the difference between δ and γ is relatively small, δ≈γ), at this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be relatively large (when demolding, the frictional force f1 of the mold relative to the first wall 2211 and the frictional force f2 of the mold relative to the second wall 2222 tend to be more collinear, and at this time the resultant force is relatively large), and the actual product is relatively more likely to show strain, reducing the yield rate. When the difference between δ and γ is relatively large, the first wall 2211 and the second wall 2222 form a certain angle. At this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be relatively small (when demolding, there is a relatively large included angle between the frictional force f1 of the mold on the first wall 2211 and the frictional force f2 of the mold on the second wall 2222, and some component forces will be offset, that is, the resultant force is relatively small). Although it is more conducive to smooth demolding, the difference between δ and γ is relatively large, and the tightening force of the screw on the threaded through hole 21 is insufficient. After the lens is installed, the phenomenon of vibrating and falling off is more likely to occur than when the difference between δ and γ is moderate. Therefore, when the difference between δ and γ is moderate, the yield rate in the lens production process is relatively high.

[0149] Refer to Figure 12, in one embodiment, the included angle between the first wall 2211 and the second wall 2222 is θ, satisfying: 166° ≤ θ < 180°. It has been verified that when the value of θ is within this range, it can not only ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), but also ensure that no scratches will occur on both sides of the through groove 22 during demolding. Preferably, θ = 173°.

[0150] It should be noted that when θ = 173°, that is, the included angle between the first wall 2211 and the second wall 2222 is neither too large (approaching 180°) nor too small (approaching 166°). When θ is too large, the first wall 2211 and the second wall 2222 tend to be coplanar. At this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be larger (when demolding, the frictional force of the mold relative to the first wall 2211 and the frictional force of the mold relative to the second wall 2222 tend to be collinear, and the resultant force is larger). In the actual product, scratches are more likely to occur compared to when θ = 173°, reducing the yield rate; when θ is too small, at this time, the resultant force of the relative frictional forces between the first wall 2211 and the second wall 2222 and the mold respectively will be smaller (when demolding, there is an included angle between the frictional force of the mold on the first wall 2211 and the frictional force of the mold on the second wall 2222, and some component forces will be offset, that is, the resultant force is smaller). Although it is more conducive to smooth demolding, but when θ is too small, that is, the slope difference between the first wall 2211 and the second wall 2222 on the same side is larger, the opening of the second groove segment 222 is large, and the tightening force of the screw on the threaded through hole 21 is insufficient. After the lens is installed, the phenomenon of vibration and falling off is more likely to occur compared to when θ = 173°. Therefore, when θ = 173°, the yield rate during the lens production process is relatively high. It can ensure the stability of the lens connection (the lens will not fall off from the connection with the radiator), and can also ensure that no scratches will occur on both sides of the through groove 22 during demolding.

[0151] Refer to Figure 11 , in one embodiment, the body 1 of the second lens 32 has a light incident surface 1-1 and a light exit surface 1-2 arranged opposite to each other. There are two mounting portions 2, and the two mounting portions 2 are arranged on the surface of the light incident surface 1-1 and are respectively located at both ends of the light incident surface 1-1 along the third direction.

[0152] In the foregoing solution, when multiple first lenses 31 are arranged side by side in the third direction, the side lenses 31a that converge the light-emitting direction towards the side lenses 31a on the other side emit light obliquely forward after the light exits from the light-emitting surface of the side lenses 31a and do not irradiate the area directly in front of the side lenses 31a. Therefore, the mounting portion 2 can be provided on a partial area of the light-incident surface 1-1 of the second lens 32 corresponding to the area directly in front of the side lenses 31a (i.e., on the surfaces of the light-incident surfaces 1-1 at both ends of the second lens 32 in the third direction). At this time, it will not affect the light emitted from the side lenses 31a from entering the second lens 32 through the light-incident surface 1-1. Therefore, in this embodiment, it is not necessary to provide the mounting portion 2 on the outer end faces at both ends of the second lens 32 in the third direction, and the space occupied by the entire second lens 32 in the length direction of the light-incident surface 1-1 can also be reduced, which is beneficial to the arrangement of the remaining components inside the vehicle headlight.

[0153] It should be noted that the mounting portion 2 is at least partially provided on the light-incident surface 1-1, and the relative positions of the two are determined according to the actual product design. Figure 11 Only the mounting portion 2 at one end of the second lens 32 in the third direction is schematically shown.

[0154] In one embodiment, in the axial direction of the threaded through-hole 21, the mounting portion 2 has two opposite faces, namely the first face 23 and the second face 24. The first face 23 intersects the first groove section 221, that is, the first face 23 is the bottom face of the mounting portion 2 ( Figure 11 、 Figure 12 in the perspective view). In this embodiment, the first face 23 is perpendicular to the light-incident surface 1-1. With such a setting, the angle of the lens mounted in the vehicle headlight can be limited. When mounting the lens, the first face 23 is abutted against the mounting face on the radiator for mounting, and then the screw is tightened and fixed. Since the first face 23 is perpendicular to the light-incident surface 1-1, after the lens is mounted, the angle of the light-incident surface 1-1 relative to the vehicle headlight is limited, with a simple structure and convenient use; and the perpendicularity between the first face 23 and the light-incident surface 1-1 is beneficial to the processing and molding of the mold and also facilitates the smooth demolding after the lens is manufactured.

[0155] It should be noted that in some embodiments, the first face 23 and the light-incident surface 1-1 may also be non-perpendicularly arranged, which can be set according to the required mounting angle of the lens relative to the vehicle headlight.

[0156] Refer to Figure 11, in one embodiment, the lens further includes a stabilizing portion 3, which is disposed on the opposite sides of the two mounting portions 2, and in the axial direction of the threaded through-hole 21, the stabilizing portion 3 extends and protrudes from the second surface 24. By providing the stabilizing portion 3, the stability between the mounting portion 2 and the main body can be enhanced, ensuring the stability after the lens is installed, and thus ensuring the stability of the light, effectively improving the use effect of the vehicle lamp; in addition, the stabilizing portion 3, the main body and the mounting portion 2 will enclose an installation space ( Figure 11 in the perspective view, above the mounting portion 2), when installing the lens, it provides an operating space for the tightening operation of the screw. When installing the screw, the screw will inevitably fall from the screwdriver or other tightening tools. Through the above-mentioned installation space, the screw can be separated from the light incident surface 1-1, that is, the screw that falls during the installation of the screw will not scratch the light incident surface 1-1 and will not affect the optical performance of the light incident surface 1-1 (the second lens), and the structure is simple; in addition, the screw that falls during installation will preferentially fall into the above-mentioned installation space, which can prevent the screw from falling into the vehicle lamp, avoiding scratching the vehicle lamp, and is also more convenient to take out compared to the screw falling into the interior of the vehicle lamp.

[0157] It should be noted that, in some embodiments, in order to further prevent the screw from falling from above the mounting portion 2 to other places, a protruding portion 26 protruding upward ( Figure 11 in the perspective view) from the second surface 24 is provided at the end of the mounting portion 2 away from the main body, and it is not limited thereto. In addition, in some embodiments, the stabilizing portion 3 also extends downward ( Figure 11 in the perspective view). While further strengthening the stable connection between the mounting portion 2 and the main body, a space is also formed below the mounting portion 2. When the lens is installed on the mounting surface of the vehicle lamp, the downwardly extending portion of the stabilizing portion 3 can limit the lens on the vehicle lamp (when the mounting portion 2 is installed on the mounting surface or the mounting base of the vehicle lamp, the stabilizing portions 3 on both sides are clamped between the two mounting bases on both sides, thereby limiting the position of the lens in its length direction), ensuring the stability of the lens before tightening the screw, and being able to position the installation position of the threaded through-hole 21.

[0158] In one embodiment, a positioning through-hole 25 is further provided on the mounting portion 2, and the positioning through-hole 25 is used to position the installation position of the threaded through-hole 21. In an actual product, a pin is provided at the position on the vehicle lamp for installing the lens. When installing the lens, the pin is inserted into the positioning through-hole 25, and at this time, the threaded through-hole 21 is just at its installation position, with a simple structure and effectively improving the installation efficiency of the lens.

[0159] Adopting the technical solution provided by the embodiment of the present application, by providing a through groove 22 on the hole wall of the threaded through hole 21, and the through groove 22 penetrating the mounting portion 2, the stress during screw tightening can be released, avoiding cracking of the mounting portion 2 (threaded through hole 21); the through groove 22 includes a first groove section 221 and a second groove section 222 adjacent to each other, the groove walls of the connected first groove section 221 and the second groove section 222 are not coplanar, and the groove widths of the first groove section 221 and the second groove section 222 gradually increase in the direction from the first groove section 221 to the second groove section 222, and the groove width of the second groove section 222 is greater than that of the first groove section 221. With such a setting, while avoiding cracking of the mounting portion 2 (threaded through hole 21), it can also avoid scratching during demolding of the lens (threaded through hole 21), improving the yield rate of the product and reducing the production cost.

[0160] In the prior art, stray light is likely to occur on the peripheral side of the vehicle lamp, thereby affecting optical properties such as the uniformity of the vehicle lamp.

[0161] To solve the above problems, a lens solution provided by an embodiment of the present application includes a main body portion and a light-transmitting convex block. The main body portion has an incident light surface and an emergent light surface arranged opposite to each other; at least one light-transmitting convex block is provided on the peripheral side of the emergent light surface; wherein, after the light passes through the emergent light surface, an illumination area is formed on the side of the emergent light surface away from the incident light surface; the light-transmitting convex block has a refracting surface to refract a part of the light incident from the side of the incident light surface in a direction away from the illumination area and emit it. By providing the light-transmitting convex block on the peripheral side of the emergent light surface, a part of the light incident from the incident light surface (the light not used to form the illumination area, that is, stray light) is refracted by the refracting surface and emitted in a direction away from the illumination area; the stray light is refracted into the space outside the illumination area, effectively improving the uniformity of the light of the vehicle lamp. The lens structure will be described in detail below taking the first lens as an example.

[0162] Refer to Figure 16 、 20 and Figure 21In one embodiment, the first lens 31 includes a main body 11 and a light-transmitting protrusion 13. The main body 11 has a light-entering surface 111 and a light-emitting surface 112 that are arranged opposite to each other. The light-transmitting protrusion 13 is arranged around the light-emitting surface 112. After the light passes through the light-emitting surface 112, an irradiation area 50 is formed on the side of the light-emitting surface 112 away from the light-entering surface 111. The light-transmitting protrusion 13 has a refractive surface 131. The refractive surface 131 refracts part of the light incident from the side of the light-entering surface 111 (the light that is not used to form the irradiation area 50, i.e., the stray light) toward a direction away from the irradiation area 50. The light-transmitting protrusion 13 is arranged around the light-emitting surface 112, and can refract the stray light at the edge of the lens (the light-emitting surface 112) into the space outside the irradiation area 50, thereby improving the uniformity of the light of the vehicle lamp. By setting the refractive surface 131, the angle of refraction of the stray light can be controlled, and can be adjusted according to factors such as different lens structures and different incident light, and the structure is simple.

[0163] It should be noted that at least one light-transmitting protrusion 13 is provided on the peripheral side of the light-emitting surface 112. Different numbers of light-transmitting protrusions 13 are provided according to the specific structure of the vehicle lamp. The light-transmitting protrusions 13 can be provided on multiple sides of the light-emitting surface 112 to ensure that the light-transmitting protrusions 13 can refract unnecessary light (stray light) out of the irradiation area 50. In the present embodiment, the lens is in the shape of an elongated strip, and a light-transmitting protrusion 13 is provided on both sides of the length direction of the lens (main body 11), and the light-emitting surface 112 is formed between the two light-transmitting protrusions 13. In addition, in the present embodiment, the light-transmitting protrusion 13 and the main body 11 are integrally provided, and can be formed by injection molding. In some embodiments, the light-transmitting protrusion 13 and the main body 11 can also be separately provided, and can be fixed by bonding or the like, but is not limited to this.

[0164] See also Figure 21 In one embodiment, the light incident surface 111 includes a first photon incident surface 1111 and a second photon incident surface 1112, the second photon incident surface 1112 is arranged on the peripheral side of the first photon incident surface 1111, and the light forms an irradiation area 50 after passing through the first photon incident surface 1111, and the orthographic projection of the refractive surface 131 on the plane where the light exiting surface 112 is located borders or partially overlaps with the orthographic projection of the first photon incident surface 1111 on the plane where the light exiting surface 112 is located. Such an arrangement can ensure that all the light incident from the second photon incident surface 1112 can be refracted by the refractive surface 131 and then emitted in a direction away from the irradiation area 50, effectively removing stray light and improving the uniformity of the light emitted from the light exiting surface 112.

[0165] It should be noted that, in some embodiments, by adjusting the left and right sides ( Figure 21The distance between the light-transmitting bumps 13 in the [perspective] is adjusted, and then the size of the light-emitting surface 112 is adjusted to adjust the size of the illumination area 50. While enabling the headlamp to meet different lighting requirements, the stray light can be removed through the arrangement of the refracting surface 131 to improve the uniformity of the light emitted from the light-emitting surface 112. Additionally, in this embodiment, the orthographic projection of the refracting surface 131 on the plane where the light-emitting surface 112 is located can cover the orthographic projection of the second incident photon surface 1112 on the plane where the light-emitting surface 112 is located. Such an arrangement can ensure that all the light rays (the light rays not used to form the illumination area 50) incident from the second incident photon surface 1112 are refracted by the refracting surface 131 and emitted in a direction away from the illumination area 50. In some embodiments, the orthographic projection of the refracting surface 131 on the plane where the light-emitting surface 112 is located covers a part of the orthographic projection of the second incident photon surface 1112 on the plane where the light-emitting surface 112 is located. The light rays incident from the uncovered second incident photon surface 1112 can be blocked by the bracket (the bracket for lens installation), achieving the removal of stray light and also ensuring the optical performance of the headlamp.

[0166] Referring to Figure 21 , in an embodiment, in the direction perpendicular to the light-emitting surface 112, the distance from the second incident photon surface 1112 to the light-emitting surface 112 is less than the distance from the first incident photon surface 1111 to the light-emitting surface 112, that is, the middle of the main body 11 is thick and the two ends are thin ( Figure 6 [perspective]); such an arrangement can avoid interference between the main body 11 and the bracket when the main body 11 of the first lens 31 is installed on the bracket, improving the assembly efficiency.

[0167] Referring to Figure 17 and Figure 18, in one embodiment, the angle between the refraction surface 131 and the light-emitting surface 112 is α, satisfying: 30° ≤ α ≤ 80°, such as 30°, 40°, 50°, 60°, 70°, 80°, etc. When the value of α is less than 30°, the refraction surface 131 and the light-emitting surface 112 are close to parallel, and the light rays (stray light) refracted by the refraction surface 131 cannot be far away from the irradiation area 50 at a large angle (that is, part of the light rays will be close to the edge of the irradiation area 50 after being refracted by the refraction surface 131), which is not conducive to the uniformity of the overall light; when the value of α is greater than 80°, the refraction surface 131 and the light-emitting surface 112 are close to perpendicular. At this time, the orthographic projection area of the refraction surface 131 on the plane where the light-emitting surface 112 is located is small, that is, the refraction surface 131 cannot cover a large amount of stray light. And when the value of α is greater than 80°, during injection molding, it is not conducive to demolding, the interaction force between the refraction surface 131 and the mold bracket is large, which is not conducive to the improvement of production efficiency, and the part (the first lens) may be strained during the demolding process. It has been verified that when 30° ≤ α ≤ 80°, preferably α = 40°, which can not only ensure good refraction effect of the refraction surface 131 on stray light (far away from the irradiation area 50 at a large angle), but also ensure that the refraction surface 131 can refract a large area of stray light, and at the same time ensure the smooth demolding during the injection molding process, effectively improving the production efficiency and the yield rate of the product.

[0168] Refer to Figure 17 and Figure 18 , in one embodiment, in the direction perpendicular to the light-emitting surface 112, the maximum distance between the refraction surface 131 and the light-emitting surface 112 (that is Figure 18 in the perspective view, the height of the light-transmitting convex block 13) is h mm, satisfying: 1 ≤ h ≤ 5, such as 1, 2, 3, 4, 5, etc. When the value of h is less than 1, the height of the light-transmitting convex block 13 is too low, which is not conducive to processing and forming, and when the value is less than 1, the area of the corresponding refraction surface 131 will also become smaller, and it cannot cover a large amount of stray light; when the value of h is greater than 5, the height of the light-transmitting convex block 13 is too high, which will occupy the space at the top of the lens ( Figure 18 in the perspective view), which is not conducive to the design of the headlight shape. It has been verified that when 1 ≤ h ≤ 5, it can not only ensure that the refraction surface 131 can refract a large area of stray light, but also avoid occupying the space at the top of the lens, which is beneficial to the headlight structure design.

[0169] Refer to Figure 19 , in one embodiment, the refraction surface 131 has a first refraction sub-surface 1311 and a second refraction sub-surface 1312 adjacent to each other. The second refraction sub-surface 1312 is connected between the first refraction sub-surface 1311 and the main body part 11, and the slope of the first refraction sub-surface 1311 is less than the slope of the second refraction sub-surface 1312.

[0170] It should be noted that the slope of the first refracting surface 1311 is smaller than that of the second refracting surface 1312, that is, the second refracting surface 1312 is steeper than the first refracting surface 1311, which means that the first refracting surface 1311 is more inclined to the right side ( Figure 19 viewing angle). With such a setting, the light refracted by the refracting surface 131 can be refracted into two different regions respectively, and the stray light is dispersed in each region, that is, there is less light in a single region, which is beneficial to reducing the temperature in this region and improving the service life of the vehicle lamp; at the same time, with such a setting, demolding can be carried out quickly, and at the same time, damage to the light-transmitting bump 13 during the demolding process can be avoided.

[0171] In some embodiments, the refracting surface 131 can also be set as a convex or concave curved surface, which can ensure the refracting effect on the stray light without affecting the demolding (when it is not injection molding, the demolding operation does not need to be considered), and it is not limited to this.

[0172] Refer to Figure 18 , in an embodiment, the light-transmitting bump 13 further has a demolding inclined surface 132, which is connected between the refracting surface 131 and the light-emitting surface 112, and the angle between the demolding inclined surface 132 and the light-emitting surface 112 is β, satisfying: 93° ≤ β ≤ 95°, such as 90°, 94°, 95°, etc. When the value of β is less than 93°, the demolding inclined surface 132 is close to perpendicular to the light-emitting surface 112 or forms an acute angle between them, and the mutual force (friction force) between the demolding inclined surface 132 and the mold is large, which is not conducive to the demolding operation of the light-transmitting bump 13. Even when an acute angle is formed between the demolding inclined surface 132 and the light-emitting surface 112, the surface of the light-transmitting bump 13 will be damaged during the demolding process, reducing the yield rate; when the value of β is greater than 95°, the distance of the demolding inclined surface 132 along the horizontal direction ( Figure 18 viewing angle) is too large (when the height of the light-transmitting bump 13 remains unchanged), which will occupy the area of the light-emitting surface 112 and is not conducive to the design of the vehicle lamp. It has been verified that when 93° ≤ β ≤ 95°, the smoothness of the demolding process can be ensured, the yield rate can be improved, and at the same time, the area of the light-emitting surface 112 will not be occupied, which is beneficial to the structural design of the vehicle lamp.

[0173] Refer to Figure 16 and Figure 20, on the other hand, the first lens 31 of the present application is fixedly arranged on the reflection component 10. Specifically, the first lens 31 further includes mounting portions 12 which are arranged on opposite sides of the main body portion 11, and are fixedly mounted to the reflection component 10 through the mounting portions 12; the mounting portions 12 are horizontally arranged on the mounting support surface of the reflection component 10, with the light incident surface 111 facing the reflection area of the reflection component 10. In this embodiment, the light incident surface 111 includes a first light incident sub-surface 1111 and a second light incident sub-surface 1112, and the second light incident sub-surface 1112 is arranged on the periphery of the first light incident sub-surface 1111. After the light passes through the first light incident sub-surface 1111, an illumination area 50 is formed. In the direction perpendicular to the light exit surface 112, the distance from the second light incident sub-surface 1112 to the light exit surface 112 is less than the distance from the first light incident sub-surface 1111 to the light exit surface 112, that is, the middle of the main body portion 11 is thick and the two ends are thin ( Figure 21 viewing angle); such a setting can avoid interference between the two ends of the first light incident sub-surface 1111 in the horizontal direction ( Figure 21 viewing angle) and the reflection component 10 when the first lens 31 is mounted on the mounting support surface of the reflection component 10, that is, an installation gap 70 is formed between the main body portion 11 and the reflection component 10, improving the assembly efficiency.

[0174] It should be noted that the mounting portion 12 and the reflection component 10 are positioned and fixed through a positioning structure 60. The positioning structure 60 includes a positioning block 61, a positioning groove 62 and a welding bump 63. In this embodiment, the positioning block 61 is arranged on the mounting support surface of the reflection component 10, and the positioning groove 62 is arranged on the mounting portion 12. The relative position between the first lens 31 and the reflection component 10 is positioned by engaging the positioning block 61 in the positioning groove 62, improving the assembly accuracy and assembly efficiency; after the cooperation of the positioning block 61 and the positioning groove 62, the first lens 31 is positioned on the reflection component 10. At this time, the welding bump 63 is melt-welded from the side of the mounting portion 12 facing away from the reflection component 10 (transparent material in this embodiment) by laser welding (using laser as energy to melt the material to achieve welding between materials), realizing the fixation of the first lens 31 and the reflection component 10.

[0175] In some embodiments, the positioning groove 62 can be arranged on the mounting support surface of the reflection component 10, the positioning block 61 is arranged on the mounting portion 12, and the positioning block 61 can be wedge-shaped, having a positioning function and a guiding function at the same time, and can guide the positioning block 61 to the positioning groove 62 for positioning, with a simple structure and further improving the assembly efficiency; in addition, in some embodiments, the positioning structure 60 can also be set in other forms, and the fixation between the first lens 31 and the reflection component 10 can also be in other forms, such as glue bonding, etc., not limited to this.

[0176] Refer to Figure 21, in one embodiment, the mounting portion 12 has a first surface 121 and a second surface 122 in a direction perpendicular to the light-emitting surface 112, and the first surface 121 is disposed above the second surface 122 ( Figure 21 in the viewing angle). When the mounting portion 12 also uses a light-transmitting material, it can be injection-molded together with the main body portion 11. The first surface 121 is flush with the light-emitting surface 112, so that the processing difficulty of the mold itself can be reduced. In some embodiments, the first surface 121 can also be convex with respect to the light-emitting surface 112, or the first surface 121 is disposed between the light-emitting surface 112 and the light-incident surface 111, which is set according to the actual installation structure, and is not limited thereto.

[0177] Refer to Figure 18 , in one embodiment, the light-incident surface 111 includes a first light-incident sub-surface 1111 and a second light-incident sub-surface 1112. The second light-incident sub-surface 1112 is disposed on the periphery of the first light-incident sub-surface 1111. After the light passes through the first light-incident sub-surface 1111, an illumination area 50 is formed. The main body portion 11 further has a connecting surface 113, and the connecting surface 113 is connected between the first light-incident sub-surface 1111 and the second light-incident sub-surface 1112, that is, the side surface of the main body portion 11. In this embodiment, both ends of the main body portion 11 in the length direction are stepped (as Figure 18 shown). An installation gap 70 is formed between the connecting surface 113 and the reflection component 10, reserving an assembly margin and improving the assembly efficiency; a leather texture structure 101 is provided on a portion of the reflection component 10 opposite to the connecting surface 113. With such a setting, after some stray light enters the installation gap 70, it can be reflected by the leather texture structure 101, and the light extinction effect (refracting the stray light toward a direction away from the illumination area 50) can also be achieved.

[0178] Adopting the technical solution provided by the embodiment of the present application aims to set a light-transmitting convex block 13 on the periphery of the light-emitting surface 112, so that part of the light (the light that is not used to form the illumination area 50, that is, stray light) incident from the light-incident surface 111 is refracted by the refracting surface 131 and emitted in a direction away from the illumination area 50; the stray light is refracted into the space outside the illumination area 50, effectively improving the uniformity of the vehicle light.

[0179] On the other hand, the present application also relates to a vehicle lamp, including any one of the foregoing lenses or optical modules.

[0180] The present application also provides a vehicle, including the vehicle lamp described in any one of the above. The above vehicle can be an automobile, a train, a high-speed train or other vehicles that require vehicle lamps.

[0181] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

[0182] For those skilled in the art, it is obvious that the present application is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present application, the present application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present application. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. An optical module, characterized in that, Comprising: A light source, which is arranged at or near the light-emitting focus of the main reflecting surface; A reflecting component, including the main reflecting surface, which includes a root portion and a light-emitting end arranged in sequence along the main light-emitting direction; the imaging focus of the main reflecting surface is located between the first lens and the second lens; A first lens, arranged in front of the reflecting component along the main light-emitting direction, for adjusting light in a first direction; And A second lens, through which the light transmitted through the first lens passes and adjusts light in a second direction, the second direction intersecting the first direction; the first focus of the first lens and the second focus of the second lens are both behind the light source.

2. The optical module according to claim 1, characterized in that The first focus of the first lens and the second focus of the second lens are at different positions in the main light-emitting direction of the optical module.

3. An optical module according to claim 1, characterized in that, The first focus is at or near the root portion of the reflecting component, and in the main light-emitting direction of the optical module, the second focus is behind the first focus; Taking the mounting base surface as a reference, the middle portion of the root portion protrudes towards the second direction away from the mounting base surface and forms a curved structure for the root portion; or, the distance between the middle portion of the root portion and the mounting base surface is greater than the distance between the side portion of the root portion and the mounting base surface.

4. An optical module according to claim 1, wherein The first focus is at the middle portion of the root portion of the reflecting component; in the main light-emitting direction of the optical module, the second focus is behind the root portion of the reflecting component, and the distance between the second focus and the first focus is 1-3 mm.

5. An optical module according to claim 4, wherein The distance between the second focus and the first focus is 1.5-2 mm.

6. An optical module according to claim 1, wherein One side surface of the second lens close to / away from the first lens is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface is located is perpendicular to the second direction; or, one side surface of the first lens close to / away from the second lens is a cylindrical surface, and the normal line of the plane where the directrix of the cylindrical surface of the first lens is located is perpendicular to the first direction.

7. An optical module according to claim 6, wherein The radius of curvature of the cylindrical surface on the surface of the second lens is 900 mm to 1500 mm.

8. An optical module according to claim 1, characterized in that, There are multiple first lenses, which are arranged side by side in a third direction forming an angle with the main light-emitting direction, and the first lens close to the side is a side lens, and the converging light-emitting direction of the side lens faces the other side lens and in front of the main light-emitting direction.

9. An optical module according to claim 1, characterized in that The reflecting component further includes: a second light-adjusting surface, arranged behind the main reflecting surface in the main light-emitting direction and close to the root portion of the main reflecting surface, configured to receive the light transmitted to its surface and project it towards the rear of the main light-emitting direction; Or, the reflecting component further includes a blocking extinction surface, arranged behind the main reflecting surface in the main light-emitting direction, and the blocking extinction surface and the main reflecting surface are arranged in sequence in the direction away from the mounting base surface; the blocking extinction surface is configured to block and at least partially absorb the light projected onto its surface.

10. The optical module according to claim 9, wherein Taking the mounting base surface as a reference, the height of the side of the second light-adjusting surface away from the main reflecting surface is greater than the height of the side of the second light-adjusting surface close to the main reflecting surface; the angle β between the second light-adjusting surface and the mounting base surface is greater than or equal to 0° and less than or equal to 10°.

11. The optical module according to claim 1, wherein, The first lens includes: A main body having a light incident surface and a light emitting surface arranged opposite to each other; and A light-transmitting protrusion, at least one of which is provided on the peripheral side of the light-emitting surface; After the light passes through the light emitting surface, an irradiation area is formed on the side of the light emitting surface away from the light incident surface; the light-transmitting protrusion has a refractive surface to refract part of the light incident from one side of the light incident surface and emit it in a direction away from the irradiation area.

12. The optical module according to claim 11, characterized in that: The light incident surface includes a first photon incident surface and a second photon incident surface, wherein the second photon incident surface is arranged on the peripheral side of the first photon incident surface, and the light forms the irradiation area after passing through the first photon incident surface; The orthographic projection of the refractive surface on the plane where the light-emitting surface is located borders on or partially overlaps with the orthographic projection of the first photon incident surface on the plane where the light-emitting surface is located.

13. The optical module according to claim 1, wherein The second lens comprises: The body; and A mounting portion, disposed on the body; Wherein, the mounting portion is provided with a threaded through hole, and the hole wall of the threaded through hole is provided with a through groove penetrating the mounting portion to separate the hole wall of the threaded through hole; the groove width of the through groove increases along the axial direction of the threaded through hole, and the through groove includes a first groove segment and a second groove segment adjacent to each other, and the groove walls of the connected first groove segments are not coplanar with the groove walls of the second groove segments; the groove width dimension of the end of the first groove segment away from the second groove segment is d1mm, the groove width dimension of the connection between the first groove segment and the second groove segment is d2mm, and the groove width dimension of the end of the second groove segment away from the first groove segment is d3mm, satisfying: d3>d2>d1.

14. A vehicle lamp, characterized in that, The optical module comprises any one of claims 1-13.

15. A vehicle, characterized in that, The vehicle lamp comprising the vehicle lamp as claimed in claim 14.

Images