Optical module
By setting the III section on the periphery of the main body in the optical module and using the second light guide component to shield it, the problems of lens aesthetics and near-beam beam quality are solved, achieving improved near-beam beam shape and consistent appearance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-25
- Publication Date
- 2026-03-17
AI Technical Summary
In the prior art, in order to meet the design requirements of Zone III, protrusions or grooves are set on the light-emitting surface of the lens, which affects the aesthetics and reduces the near-beam light-forming quality.
An optical module is designed, with region III located on the periphery of the main body. Region III is shielded by a second light guide component to avoid blocking near light and to adjust stray light to form region III. The second light guide component and the first light guide component share a third light guide component, simplifying the structure.
It improves the lighting effect and appearance consistency of the low beam, eliminates stray light, simplifies the headlight structure, and meets design requirements.
Smart Images
Figure CN121676894A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle lighting technology, and more particularly to an optical module. Background Technology
[0002] With the continuous development of the automotive industry and the increasing aesthetic demands of consumers, automotive lighting is no longer limited to traditional functional lighting tools. Higher requirements are placed on the uniformity, brightness, and appearance of headlights. In existing technologies, to meet the design requirements of Zone III, protrusions or grooves are often set on the light-emitting surface of the lens. These protrusions or grooves redirect a portion of the light originally intended to form the low beam pattern towards Zone III. This is visually noticeable and affects the integrity of the lens's appearance, reducing its aesthetic appeal and impacting the quality of the low beam pattern. Summary of the Invention
[0003] This application aims to solve at least one of the technical problems existing in the prior art by providing an optical module.
[0004] According to one aspect of this application, an optical module is provided, including a first light guide component and a second light guide component; the first light guide component includes a main body portion and a third region portion, the third region portion being disposed on the periphery of the main body portion in a first direction, the first direction being parallel to the main light emission direction of the first light guide component; the second light guide component is disposed on one side of the first light guide component in a second direction, and in the first direction, the second light guide component is disposed on the light emission side of the first light guide component, the second direction being perpendicular to the first direction; the third region portion is disposed on the side of the main body portion near the second light guide component, and a projection surface η perpendicular to the first direction is provided, the orthographic projection of the third region portion on the projection surface η being located within the orthographic projection of the second light guide component on the projection surface η.
[0005] In one embodiment, the III region has a fourth light-incident surface and a fourth light-exit surface spaced apart in a first direction. The fourth light-incident surface is a curved surface that protrudes toward the light-exit side of the first light guide component, and the fourth light-exit surface is a planar surface. In the direction from the first light guide component toward the second light guide component, the slope of the fourth light-incident surface gradually decreases, and the fourth light-incident surface is a converging surface.
[0006] In one embodiment, a third light guide component is further included, which is disposed in the light-emitting direction of the first light guide component and the second light guide component; the second light guide component has a second light-emitting surface on the side facing the third light guide component, the second light-emitting surface is a curved surface that is concave towards the light-incident side of the second light guide component, and the slope of the second light-emitting surface gradually decreases in the direction from the first light guide component to the second light guide component; the second light-emitting surface is configured to receive light and diffuse the light to the third light guide component in a second direction.
[0007] In one embodiment, the first light guide component is configured to receive light and direct the light toward the third light guide component to form a near-light pattern; in the second direction, the light adjusted by the first light guide component is deflected toward the side of the first light guide component away from the second light guide component.
[0008] In one embodiment, the main body has a first light-incident surface and a first light-exit surface disposed opposite each other in a first direction. The first light-incident surface has a plurality of shaped cylindrical surfaces arranged along a third direction. The generatrix of the shaped cylindrical surfaces is parallel to the first light-exit surface and perpendicular to the first direction. The first direction, the second direction, and the third direction are mutually perpendicular to each other. The angle between the incident light ray from the shaped cylindrical surface and the generatrix of the shaped cylindrical surface is an acute angle. In the second direction, the incident light ray from the shaped cylindrical surface is inclined toward the side of the first light guide component away from the second light guide component.
[0009] In one embodiment, the first light-incident surface further has a supplementary cylindrical surface, the distance between the generatrix of the supplementary cylindrical surface and the first light-emitting surface in a first direction gradually increases in the direction from the first light guide member toward the second light guide member; the light rays incident through the supplementary cylindrical surface are denoted as supplementary rays, the first light-emitting surface is configured to receive the supplementary rays, and in the second direction, the supplementary rays adjusted by the first light-emitting surface are deflected toward the side of the first light guide member closer to the second light guide member.
[0010] In one embodiment, the third light guide component is configured to receive light diffused by the second light guide component and adjust the light to be emitted parallel to the first direction to form a high beam pattern.
[0011] In one embodiment, the device further includes a first reflector, a first circuit board, and a heat sink. The first reflector is configured to receive light and reflect the light to the first light guide component. The first circuit board is adapted to the first reflector, and the heat sink is disposed on the side of the first circuit board facing away from the first reflector. A first positioning pin is provided on the surface of the first reflector facing the first circuit board. The first positioning pin has a first segment and a second segment along a fourth direction. The first segment is disposed between the first reflector and the second segment, and the fourth direction is perpendicular to the surface of the first circuit board. The orthographic projection of the second segment onto the plane of the first circuit board is located inside the orthographic projection of the first segment onto the plane of the first circuit board. Both the first circuit board and the heat sink are provided with positioning holes, which are adapted to the first segment and the second segment, respectively.
[0012] In one embodiment, the device further includes a second reflector and a second circuit board adapted to the second reflector. The second reflector is configured to receive light and reflect the light to the second light guide component. The second circuit board is disposed on the side of the heat sink facing away from the first circuit board. The first positioning pin further includes a third segment, which is disposed on the side of the second segment away from the first segment, and the orthographic projection of the third segment on the plane of the first circuit board is located inside the orthographic projection of the second segment on the plane of the first circuit board. The second reflector has a second positioning pin on its surface facing the second circuit board, and the second positioning pin has a fourth segment. The second circuit board has positioning holes adapted to the third segment and the fourth segment respectively.
[0013] In one embodiment, the heat sink includes a connecting portion and an extension portion. The connecting portion is disposed on the side of the first circuit board away from the first reflector, and the extension portion is connected to the side of the connecting portion away from the first light guide component. The connecting portion is angularly positioned between the extension portions. There are at least two extension portions, and adjacent extension portions are V-shaped. At least two adjacent extension portions are provided with a plurality of vent holes. A projection surface η perpendicular to the first direction is defined. The area of the orthographic projection of the vent hole on the projection surface η is S1. The orthographic projections of the vent holes on two adjacent extension portions on the projection surface η at least partially overlap, and the area of the overlapping portion is S2, satisfying: 1 / 5 ≤ S2 / S1 ≤ 1.
[0014] The beneficial effects of this application are as follows: Section III is located on the peripheral wall of the main body, thus not occupying the area of the first light-emitting surface and the first light-receiving surface. The light rays incident on the main body will not be blocked by Section III, which is beneficial to improving the illumination effect of the near beam. Simultaneously, the location of Section III on the peripheral wall of the main body avoids damaging the integrity of the first light-emitting surface, improving the overall appearance and aesthetics of the first light guide component. By placing Section III outside the main body, the original stray light is fully utilized. The stray light is adjusted and formed by Section III. The location of Section III on the periphery of the main body avoids encroaching on the light rays used to form the near beam pattern and also eliminates stray light. Furthermore, the second light guide component can block Section III, preventing its observation from the light-emitting side, thus improving the overall visual effect and ensuring good appearance consistency. Attached Figure Description
[0015] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.
[0016] Figure 1 This is a schematic diagram of a vehicle light provided in an embodiment of this application.
[0017] Figure 2 yes Figure 1 A sectional view.
[0018] Figure 3 This is a schematic diagram of a first light guide component provided in an embodiment of this application.
[0019] Figure 4 yes Figure 3 The main view.
[0020] Figure 5 yes Figure 4 Sectional view at point AA.
[0021] Figure 6 yes Figure 4 Sectional view at point BB.
[0022] Figure 7 This is a schematic diagram of an optical path in Zone III provided in an embodiment of this application.
[0023] Figure 8 This is another schematic diagram of the optical path in Zone III provided in this application embodiment.
[0024] Figure 9 This is a schematic diagram of a heat sink installation provided in an embodiment of this application.
[0025] Figure 10 yes Figure 9 The bottom view.
[0026] Figure 11 yes Figure 10 Stepped cross-section at CC.
[0027] Figure 12 yes Figure 11 Enlarged view of point D in the middle.
[0028] Figure 13 This is an enlarged view of point D provided in another embodiment of this application.
[0029] Figure 14 This is a schematic diagram of a heat sink structure provided in an embodiment of this application.
[0030] Figure 15 This is a schematic diagram of a vehicle headlight module in the existing technology.
[0031] In the picture:
[0032] 10. Low beam module; 11. First light guide component; 111. Main body; 1111. First light-incident surface; 1112. First light-outceasing surface; 1113. First wall surface; 1114. Second wall surface; 112. Section III; 1121. Fourth light-incident surface; 1122. Fourth light-outceasing surface; 113. Mounting part; 12. Third light guide component; 121. Third light-incident surface; 122. Third light-outceasing surface; 13. First reflector; 131. First positioning pin; 1311. First segment; 1312. Second segment; 1313. Third segment; 1314. Fifth segment; 1315. First connecting part; 14. First circuit board;
[0033] 20. High beam module; 21. Second light guide component; 211. Second light emitting surface; 212. First surface; 22. Second reflector; 221. Second positioning pin; 2211. Fourth section; 2212. Second guide part; 23. Second circuit board;
[0034] 30. Heat sink; 31. Connecting part; 32. Extension part; 321. Ventilation hole; 33. Additional part;
[0035] 41. Forming cylindrical surfaces; 42. Completing cylindrical surfaces;
[0036] 50. Positioning holes;
[0037] 60. Shell;
[0038] 10′, low beam module; 20′, high beam module; 30′, lens. Detailed Implementation
[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0041] The optical module in this application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0042] In the prior art, in order to meet the design requirements of Zone III, protrusions or grooves are often set on the light-emitting surface of the lens. The protrusions or grooves are used to adjust part of the light originally used to form the near beam pattern to be directed to Zone III. This is visible to the outside and affects the integrity of the lens appearance, resulting in a decrease in the aesthetics of the lens and affecting the forming quality of the near beam pattern.
[0043] To address the aforementioned technical problems, this application provides an optical module including a first light guide component and a second light guide component. The first light guide component includes a main body and a third region. The third region is disposed on the periphery of the main body in a first direction, which is parallel to the main light emission direction of the first light guide component. The second light guide component is disposed on one side of the first light guide component in a second direction, and in the first direction, the second light guide component is disposed on the light emission side of the first light guide component, with the second direction perpendicular to the first direction. The third region is disposed on the side of the main body near the second light guide component, and a projection surface η perpendicular to the first direction is defined. The orthographic projection of the third region on the projection surface η lies within the orthographic projection of the second light guide component on the projection surface η. This will be described in detail below.
[0044] See Figure 2The optical module includes a first light guide component 11 and a second light guide component 21. The first light guide component 11 includes a main body portion 111 and a third region portion 112. The third region portion 112 is disposed on the periphery of the main body portion 111 in a first direction, which is parallel to the main light emission direction of the first light guide component 11. The second light guide component 21 is disposed on one side of the first light guide component 11 in a second direction. In the first direction, the second light guide component 21 is disposed on the light emission side of the first light guide component 11, and the second direction is perpendicular to the first direction. The third region portion 112 is disposed on the side of the main body portion 111 close to the second light guide component 21, and a projection surface η perpendicular to the first direction is set. The orthographic projection of the third region portion 112 on the projection surface η is located within the orthographic projection of the second light guide component 21 on the projection surface η.
[0045] For ease of understanding, in the following embodiments, the first direction is as follows: Figure 1-3 , Figure 5-6 as well as Figure 9-11 The center direction, X, represents the vehicle's forward and backward direction in practical applications. The second direction is as follows: Figure 1-4 , Figure 6 , Figure 9 as well as Figure 11 The center direction, Z, represents the vertical direction of the vehicle in practical applications. The third direction is as follows: Figure 1 , Figure 3-5 as well as Figure 10 The center direction is Y, which in practical applications is the left and right direction of the vehicle; at the same time, the main body 111 (first light guide component 11) has a first light-incident surface 1111 and a first light-exit surface 1112 arranged opposite to each other in the first direction.
[0046] The peripheral wall of the main body 111 in the first direction is the peripheral wall of the main body 111 surrounding the first light-emitting surface 1112. The III region 112 is disposed on this peripheral wall and will not occupy the area of the first light-emitting surface 1112 and the first light-incident surface 1111. The light rays (light rays used to form the low beam) incident on the main body 111 will not be blocked by the III region 112. That is, the III region 112 will not affect the formation of the low beam pattern (in the prior art, a protrusion or groove for forming the III region is provided on the light-emitting surface of the main body 111. The protrusion or groove occupies part of the light rays used to form the low beam to form the III region), which is beneficial to improving the lighting effect of the low beam. At the same time, the III region 112 is disposed on the peripheral wall of the main body 111, which avoids damaging the integrity of the first light-emitting surface 1112, improves the integrity of the appearance of the first light guide component 11, and enhances the aesthetics.
[0047] It is worth mentioning that in actual products, most of the light emitted by the light source (such as the light emitted by an LED after being adjusted by a reflector) is directed toward the main body 111 to form a near-beam pattern. At the same time, some light is directed toward areas outside the main body 111, often forming stray light. In this application, the III area 112 is set on the periphery of the main body 111, that is, the III area 112 is set in an area outside the main body 111, making full use of the original stray light. The stray light is adjusted by the III area 112 to form the III area. The III area 112 is set on the periphery of the main body, which avoids encroaching on the light used to form a near-beam pattern and also eliminates stray light.
[0048] Compared to the protrusions or grooves formed on the first light-emitting surface 1112, the third region 112 in this application is provided on the periphery of the main body 111. During the processing and demolding process, the first light-emitting surface 1112 will not be damaged by the force generated during demolding, thus improving the processing accuracy of the first light-emitting surface 1112 and improving the lighting effect of the low beam.
[0049] In this embodiment, the III region 112 is disposed on the side of the main body 111 close to the second light guide component 21, that is, at the bottom of the main body 111. The orthographic projection of the III region 112 on the projection surface η is located within the orthographic projection of the second light guide component 21 on the projection surface η. In other words, the second light guide component 21 can block the III region 112. When viewed from the light-emitting side, the III region 112 can be avoided, which improves the overall visual effect and ensures good appearance consistency.
[0050] It should be noted that the light in Zone III is often above the near-light pattern. With this arrangement, the second light guide component 21 will not affect the emission of light from Zone III 112.
[0051] It is worth mentioning that by using the second light guide component 21 to block the III area 112, the second light guide component 21 can be set closer to the first light guide component 11, which reduces the overall space occupied in the second direction, which is beneficial to the control of the headlight size and meets the design requirements.
[0052] In some embodiments, the top of the second light guide component 21 ( Figure 2 The viewing angle is tilted, which also ensures that the light adjusted by section III 112 can be emitted smoothly.
[0053] See Figure 3-5 The first light guide component 11 also includes a mounting portion 113, which is disposed on both sides of the main body portion 111 in the third direction, and the third region portion 112 extends to the mounting portion 113 along the third direction, with the first direction, the second direction and the third direction being perpendicular to each other.
[0054] Section III 112 extends along the third direction, that is, Section III 112 is transverse ( Figure 4 From a visual perspective (the same applies below), the size is relatively large. This arrangement does not occupy vertical (vertical) space, which is conducive to the flattening design of the first light guide component 11. Furthermore, the lateral size of the third zone 112 is relatively large, which can receive more light (stray light), which is conducive to meeting the design requirements for the brightness of the third zone (most of the light used to form the third zone in the third zone 112 is stray light. Compared with the light used to form the low beam pattern, this part of the light has a lower luminous flux. By extending the third zone 112, the third zone 112 can receive more light, thereby ensuring that the brightness of the third zone meets the design requirements). At the same time, by extending the third zone 112 laterally, most of the stray light is utilized, avoiding the stray light from affecting the lighting effect of the low beam, and omitting the light-blocking structure (used to block stray light), simplifying the overall structure of the headlight.
[0055] It is worth mentioning that as the III region 112 extends laterally, the lateral dimensions of the optical surfaces (incident surface and exit surface) of the III region 112 become larger. In the lateral direction, less light is adjusted per unit length of optical surface, which can better adjust the light and is beneficial to improving the uniformity of the III region.
[0056] The first light guide component 11 is fixedly installed by the mounting portions 113 provided on both sides of the main body 111. The mounting portions 113 are located on both sides of the main body 111 in the horizontal direction, which will not affect the III area 112 provided on the top and / or bottom of the main body 111, which is conducive to improving the lighting effect. Furthermore, the mounting portions 113 are located at both ends of the main body 111 in the horizontal direction, which avoids occupying vertical space and is conducive to the flat design of the light guide component.
[0057] In this embodiment, section III 112 extends to mounting section 113, that is, both ends of section III 112 extend to mounting section 113 in the lateral direction. In other words, in the lateral direction, the size of section III 112 is larger than the size of main body 111. In vehicle headlight applications, both ends of section III 112 will be covered by components such as trim rings (mounting section 113 will be covered after the vehicle headlight is assembled, and it extends from the end of section III 112 to mounting section 113, so that while covering mounting section 113, it can also cover the lateral ends of section III 112), which improves the overall visual effect and has good appearance consistency.
[0058] See Figure 6 The third region 112 has a fourth light-incident surface 1121 and a fourth light-exiting surface 1122 spaced apart in the first direction. The fourth light-incident surface 1121 is a curved surface that protrudes toward the light-exiting side of the first light guide component 11, and the fourth light-exiting surface 1122 is a planar surface. In the direction from the first light guide component 11 toward the second light guide component 21, the slope of the fourth light-incident surface 1121 gradually decreases, and the fourth light-incident surface 1121 is a converging surface.
[0059] In this embodiment, the slope of the fourth light-incident surface 1121 gradually decreases from top to bottom (e.g., Figure 6 In the second light guide component 21, the angle between the tangent b of the fourth light-incident surface 1121 and the reference surface γ gradually decreases from top to bottom. The reference surface γ is perpendicular to the second direction and is located at the bottom of the second light-incident surface 21. The fourth light-incident surface 1121 is convex towards the light-incident side, so that after the light passes through the fourth light-incident surface 1121, it is converged upwards and directed towards the fourth light-outceasing surface 1122. After being refracted by the fourth light-outceasing surface 1122, the light converges at the focal point and then crosses and is directed towards region III. (In some embodiments, the focal point can also be set between the fourth light-incident surface 1121 and the fourth light-outceasing surface 1122, that is, the light passes through the fourth light-incident surface 1121 and converges to the focal point, crosses and is directed towards the fourth light-outceasing surface 1122, and then is refracted by the fourth light-outceasing surface 1122 and directed towards region III. The design is based on the actual use.)
[0060] By converging light through the fourth incident surface 1121, most of the light incident on the fourth incident surface 1121 can be directed to the fourth exiting surface 1122, so that the fourth exiting surface 1122 receives more light and ensures that the brightness of region III meets the usage requirements (it is worth mentioning that the stray light received by region III 112 itself has a small luminous flux, avoiding light from being directed to areas other than the fourth exiting surface 1122 and causing waste). After refraction by the fourth exiting surface 1122, the light is emitted to form region III.
[0061] It is worth mentioning that the fourth light-incident surface 1121 is a curved surface that protrudes towards the light-incident side of the first light guide component 11, and the fourth light-exit surface 1122 is a planar surface, which is conducive to demolding operation during processing, thereby improving the processing quality of the fourth light-incident surface 1121 and improving the lighting effect of the three zones.
[0062] See Figure 8 In some embodiments, the fourth light-incident surface 1121 protruding towards the light-incident side of the first light guide component 11 can also be a diffusion surface (whether the protruding fourth light-incident surface 1121 is a diffusion surface or a converging surface depends on the curvature of the fourth light-incident surface 1121, and the design is carried out according to the actual use requirements). After the light passes through the fourth light-incident surface 1121, it is diffused and then directed towards the fourth light-emitting surface 1122, which is beneficial to improve the uniformity of the light. However, when the same luminous flux light is incident (directed towards the fourth light-incident surface 1121), compared with the fourth light-incident surface 1121 being a converging surface, some of the light regulated by the fourth light-incident surface 1121 may be directed towards areas other than the fourth light-emitting surface 1122, affecting the brightness of area III. However, it still falls within the protection scope of this application, and the design is carried out according to the actual use requirements.
[0063] See Figure 7In some embodiments, the fourth light-incident surface 1121 is a curved surface that is recessed toward the light-emitting side of the first light guide component 11, and the fourth light-emitting surface 1122 is a planar surface; in the direction from top to bottom, the slope of the fourth light-incident surface 1121 gradually increases, and the fourth light-incident surface 1121 is a diffusion surface.
[0064] In this embodiment, the fourth light-incident surface 1121 is a curved surface that is concave towards the light-emitting side of the first light guide component 11, and the slope of the fourth light-incident surface 1121 gradually increases from top to bottom. After passing through the fourth light-incident surface 1121, the light is diffused and refracted upward toward the fourth light-emitting surface 1122, and then refracted by the fourth light-emitting surface 1122 toward region III. The diffusion of the fourth light-incident surface 1121 is beneficial to improving the lighting effect of region III.
[0065] In some embodiments, the main body 111 is wider on the left and narrower on the right. Figure 6 With the viewing angle set, the light-incident side of the main body 111 will not affect the light rays directed toward the III zone 112, and the light rays can be directed toward the III zone 112 better, thereby increasing the luminous flux received by the III zone 112, which is conducive to ensuring that the brightness of the III zone meets the usage requirements.
[0066] In some embodiments, the first light-emitting surface 1112 is planar, and the first light-emitting surface 1112 and the fourth light-emitting surface 1122 are coplanar.
[0067] Both the first light-emitting surface 1112 and the fourth light-emitting surface 1122 are planar, and the fourth light-emitting surface 1122 is coplanar with the first light-emitting surface 1112, which makes the overall light-emitting surface of the first light guide component 11 have good consistency and improves the aesthetics of the appearance.
[0068] In some embodiments, the fourth light-incident surface 1121 is provided with a homogenizing pattern, which can homogenize the incident light and improve the uniformity of region III. Furthermore, the homogenizing pattern is provided on the fourth light-incident surface 1121 without affecting the light-emitting side of the first light guide component 11, which is beneficial to improving the overall aesthetics.
[0069] See Figure 1-2 The optical module also includes a third light guide component 12, which is disposed in the light-emitting direction of the first light guide component 11 and the second light guide component 21. The second light guide component 21 has a second light-emitting surface 211 on the side facing the third light guide component 12. The second light-emitting surface 211 is a curved surface that is concave towards the light-incident side of the second light guide component 21. The slope of the second light-emitting surface 211 gradually decreases in the direction from the first light guide component 11 to the second light guide component 21. The second light-emitting surface 211 is configured to receive light and diffuse the light along the second direction to the third light guide component 12.
[0070] By setting the second light-emitting surface 211, the incident light (i.e., the light received by the second light guide component 21) can be diffused along the second direction and propagated to the third light guide component 12, effectively improving the illumination range of the high beam and enhancing the road illumination effect; and the second light-emitting surface 211 faces the light-incident side of the second light guide component 21 (i.e., the side of the second light guide component 21 away from the third light guide component 12, that is... Figure 2 The concave curved surface (facing left in the viewpoint) is designed with a cross-section of the curved surface (i.e., the second light-emitting surface 211) (as shown in the image). Figure 2 (As shown in the middle surface a) The slope is from top to bottom ( Figure 2 The viewing angle (the same below) gradually decreases (in this embodiment, the second light guide component 21 is set to be narrower at the top and wider at the bottom). After the light is adjusted by the second light-emitting surface 211, it is refracted towards the side away from the first light guide component 11 (i.e., refracted downwards). The angle of light refraction (the angle of downward deflection) gradually increases from top to bottom, which avoids the light after refraction being messy and disorderly, improves the uniformity of the high beam, increases the illumination range of the light, and improves the illumination range of the high beam and the road illumination effect.
[0071] Meanwhile, since the second light-emitting surface 211 deflects the light downwards, the light is diffused without occupying the space above the second light guide component 21 (i.e., the light is not refracted and emitted upwards towards the second light guide component 21). The second light guide component 21 can be set as close as possible to the first light guide component 11, reducing the overall space occupied in the vertical direction (the first light guide component 11 and the second light guide component 21), which is conducive to the overall flat design of the headlight.
[0072] It is worth mentioning that in this application, the first light guide component 11 and the second light guide component 21 share a third light guide component 12, which avoids partitioned display, ensures the integrity of the vehicle headlight appearance, and reduces the number of parts in the entire headlight.
[0073] It should be noted that the first light guide component 11 (main body 111) is configured to receive light and propagate the light to the third light guide component 12 to form a near beam on the side of the third light guide component 12 away from the first light guide component 11; the second light guide component 21 is configured to receive light and propagate the light to the third light guide component 12 to form a far beam on the side of the third light guide component 12 away from the second light guide component 21; in addition, the greater the slope of the second light emitting surface 211, the steeper the slope, that is, the closer the slope is to a vertical state.
[0074] In some embodiments, the slope change rate of the second light-emitting surface 211 is the same, which helps to improve the uniformity of the light incident on the third light guide component 12, thereby ensuring the uniformity of the final high beam.
[0075] In some embodiments, the first light guide component 11 is configured to receive light and direct the light toward the third light guide component 12 to form a near-light pattern; in the second direction, the light after being adjusted by the first light guide component 11 is deflected toward the side of the first light guide component 11 away from the second light guide component 21.
[0076] For ease of explanation, the light ray used to form the near-beam shape is referred to as the shaping ray, which is the incident ray of the shaping cylindrical surface 41. The shaping ray forms the near-beam shape after being adjusted by the first light guide component 11 and the third light guide component 12.
[0077] In this embodiment, the light rays used to form the near-light shape (i.e., the shaping light rays) are deflected towards the side away from the second light guide component 21 under the adjustment of the first light guide component 11, that is, deflected upwards. Figure 2 (View angle, the same below) provides more installation space for the arrangement of the second light guide component 21. In the second direction, the second light guide component 21 can be set as close as possible to the first light guide component 11, that is, the space occupied by the first light guide component 11 and the second light guide component 21 in the second direction is less, which is conducive to reducing the overall size of the vehicle headlight.
[0078] It is worth mentioning that when the second light guide component 21 is placed close to the first light guide component 11, the light is deflected upwards, which can prevent the second light guide component 21 from blocking the light emitted through the first light guide component 11 and improve the lighting effect.
[0079] In some embodiments, the shaped light beam can be deflected upward after being emitted from the first light guide component 11 by adjusting the angle of the first light emitting surface 1112 or the first light incident surface 1111 of the first light guide component 11 (main body 111), or the shaped light beam can be deflected upward after being emitted from the first light guide component 11 by adjusting the incident angle of the light beam incident on the first light guide component 11 (i.e., adjusting the incident angle of the shaped light beam), etc., and is not limited to these embodiments.
[0080] For example, in some embodiments, the main body 111 has a first light-incident surface 1111 and a first light-exit surface 1112 disposed opposite to each other in a first direction, and the first light-incident surface 1111 has a plurality of shaped cylindrical surfaces 41 arranged along a third direction (see reference). Figure 3 as well as Figure 5 The generatrix of the forming cylindrical surface 41 is parallel to the first light-emitting surface 1112, and the generatrix of the forming cylindrical surface 41 is perpendicular to the first direction. The first direction, the second direction, and the third direction are mutually perpendicular to each other. The angle between the incident light ray of the forming cylindrical surface 41 and the generatrix of the forming cylindrical surface 41 is an acute angle. In the second direction, the incident light ray of the forming cylindrical surface 41 is inclined toward the side of the first light guide component 11 away from the second light guide component 21.
[0081] By incidenting the shaped light beam onto the first light guide component 11 at an upward angle, the light beam is deflected toward the side away from the second light guide component 21 by adjusting the first light-incident surface 1111 (multiple shaped cylindrical surfaces 41) and the first light-exit surface 1112 of the first light guide component 11.
[0082] It should be noted that in some embodiments, the light can be deflected downwards by setting the third light guide component 12 (the third light guide component 12 has a third light-incident surface 121 and a third light-outceasing surface 122 that are arranged opposite to each other, and the shape of the third light-incident surface 121 and the third light-outceasing surface 122 is adjusted) to meet the lighting requirements of the near beam pattern.
[0083] See Figure 3 as well as Figure 6 The first light-incident surface 1111 also has a supplementary cylindrical surface 42. The distance between the generatrix of the supplementary cylindrical surface 42 and the first light-emitting surface 1112 in the first direction gradually increases in the direction from the first light guide member 11 toward the second light guide member 21. The light rays incident through the supplementary cylindrical surface 42 are referred to as supplementary light rays. The first light-emitting surface 1112 is configured to receive supplementary light rays. In the second direction, the supplementary light rays adjusted by the first light-emitting surface 1112 are deflected toward the side of the first light guide member 11 closer to the second light guide member 21.
[0084] In this embodiment, by tilting the supplementary cylindrical surface 42, the light rays incident on the supplementary cylindrical surface 42 (i.e., supplementary light rays) are refracted downwards under the adjustment of the supplementary cylindrical surface 42 and the first light-emitting surface 1112. When the low beam is lit, some light rays are directed towards the forming cylindrical surface 41, ultimately forming the low beam pattern, while other light rays are directed towards the supplementary cylindrical surface 42, deflected downwards, and ultimately directed towards the near front of the vehicle. This helps to improve the brightness of the near front of the vehicle and enhance the lighting effect of the low beam. The light rays incident on the supplementary cylindrical surface 42 and ultimately forming the light pattern at the near front of the vehicle are also part of the low beam pattern when the low beam is lit.
[0085] It should be noted that in practical applications, the supplementary light (used for supplementary illumination) after being adjusted by the first light guide component 11 is directed toward the third light guide component 12. After being adjusted by the third light guide component 12, it is directed toward the area in front of the vehicle. The distance (distance from the front of the vehicle) of the area illuminated by the supplementary light (the area that is ultimately illuminated in front of the vehicle) can be adjusted by adjusting the shape of the third light guide component 12. This will not be elaborated further here.
[0086] In some embodiments, the side of the second light guide member 21 near the first light guide member 11 along the peripheral wall in the first direction is designated as the first surface 212; a reference surface γ is provided perpendicular to the second direction and is disposed on the side of the second light guide member 21 away from the first light guide member 11; the distance between the first surface 212 and the reference surface γ in the second direction gradually increases in the direction from the second light guide member 21 toward the third light guide member 12.
[0087] In this embodiment, the first surface 212 is the top surface of the second light guide component 21. Figure 2 (View angle, the same below) The distance in the second direction (vertical distance) between the top surface and the reference surface γ gradually increases from left to right, that is, the top surface is inclined and the top surface is set with the left side lower and the right side higher. This matches the deflection direction of the forming light after being adjusted by the first light guide component 11, which can ensure that the second light guide component 21 is as close as possible to the first light guide component 11, while not blocking the forming light.
[0088] It should be noted that in practical applications, the reference surface γ can be the surface of a component, such as the surface of the housing 60 that is perpendicular to the second direction (not necessarily perfectly perpendicular, but with a difference of ±5°), and is not limited to this.
[0089] In some embodiments, the third light guide component 12 is configured to receive light diffused by the second light guide component 21 and adjust the light to be emitted parallel to the first direction to form a high beam pattern.
[0090] The light diffused by the second light guide component 21 is adjusted into parallel light by the third light guide component 12 (parallel to the first direction; in practical applications, this light is emitted horizontally along the front-rear direction of the vehicle). Parallel light has strong penetrating power, and the high beam travels a longer distance. During propagation, the energy attenuation is relatively slow, and the area covered by the light can provide high brightness, clearly illuminating distant objects and road details, improving the driver's visual recognition, and thus enhancing driving safety. At the same time, the high beam is emitted horizontally, reducing the upward tilt of the light (emitting light upward in front of the vehicle), which helps to reduce the glare to drivers of oncoming vehicles and pedestrians.
[0091] Furthermore, compared to the high beam module 20' in the prior art, in this application, the light is emitted horizontally from the third light guide component 12, which helps to reduce the vertical volume occupied by the high beam module 20; such as Figure 15The diagram shows a schematic of the light beam of an optical module in the prior art. In the prior art, the light beam is emitted obliquely to the upper right after passing through the lens 30' to form the high beam pattern. The high beam module 20' needs to be spaced a certain distance downward from the low beam module 10' to ensure that the height of the high beam pattern formed by the high beam module 20' is appropriate, thereby ensuring that the high beam has a sufficient illumination distance. When the high beam module 20' is too close to the low beam module 10', the high beam travels a short distance and then is emitted obliquely upward, which is not conducive to the long-distance propagation of the high beam. In this application, the high beam light formed by the high beam module 20 is emitted horizontally from the third light guide component 12, and the high beam module 20 is placed as close to the low beam module 10 as possible. The high beam light can still ensure a sufficient illumination distance, which can effectively reduce the volume occupied by the high beam module 20 in the vertical direction and is beneficial to the arrangement of other components of the vehicle headlight assembly.
[0092] It should be noted that the high beam is emitted horizontally from the third light guide component 12, meaning that the high beam is parallel to the horizontal plane. In actual products, due to assembly errors, processing size errors, or other reasons, the high beam may not be absolutely parallel to the horizontal plane. There may be an angle of less than 5° between the high beam and the horizontal plane. In this case, the high beam is basically parallel to the horizontal plane and also falls within the protection scope of this application.
[0093] In some embodiments, some of the high beam rays may be emitted horizontally, while others may be emitted obliquely to the upper right under the adjustment of the third light guide component 12. This also has the beneficial effect of reducing the volume occupied by the high beam module 20 in the vertical direction, and is not limited to this.
[0094] See Figure 2 as well as Figure 9-12 The optical module also includes a first reflector 13, a first circuit board 14, and a heat sink 30. The first reflector 13 is configured to receive light and reflect it to a first light guide component 11. The first circuit board 14 is adapted to the first reflector 13. The heat sink 30 is disposed on the side of the first circuit board 14 away from the first reflector 13. A first positioning pin 131 is provided on the surface of the first reflector 13 facing the first circuit board 14. The first positioning pin 131 is provided with a first segment 1311 and a second segment 1312 along a fourth direction. The first segment 1311 is disposed between the first reflector 13 and the second segment 1312. The fourth direction is perpendicular to the surface of the first circuit board 14. The orthographic projection of the second segment 1312 on the plane where the surface of the first circuit board 14 is located is inside the orthographic projection of the first segment 1311 on the plane where the surface of the first circuit board 14 is located. The first circuit board 14 and the heat sink 30 are both provided with positioning holes 50, which are adapted to the first segment 1311 and the second segment 1312, respectively.
[0095] For ease of explanation, the plane containing the surface of the first circuit board 14 is denoted as the reference plane δ.
[0096] By setting a first positioning pin 131 on the first reflector 13, the first circuit board 14 and the heat sink 30 are installed and positioned. Compared with the prior art, which sets a first positioning pin 131 on the heat sink 30, this application avoids the deformation of the heat sink 30 caused by vibration and other factors during actual use (when the first positioning pin 131 is set on the heat sink 30, it is easy to cause the heat sink 30 to deform under the action of external force). The heat sink 30 and the first circuit board 14 can fit more tightly, which is conducive to improving the overall heat dissipation performance and extending the service life of the vehicle lamp.
[0097] For example, in practical applications, for the purpose of lightweight design, the heat sink 30 can be made of pure aluminum. The higher the purity of aluminum, the easier it is to deform. Therefore, this application sets the first positioning pin 131 on the first reflector 13 to prevent the heat sink 30 from deforming and improve the heat dissipation performance of the heat sink 30.
[0098] Furthermore, the projection of the second segment 1312 onto the reference plane δ is located inside the projection of the first segment 1311 onto the reference plane δ. That is, the first segment 1311 and the second segment 1312 as a whole (i.e., the first positioning pin 131) are arranged in a stepped shape. The first segment 1311 is adapted to the positioning hole 50 on the first circuit board 14 for positioning the first circuit board 14, and the second segment 1312 is adapted to the positioning hole 50 on the heat sink 30. Through the arrangement of the first segment 1311 and the second segment 1312, the first circuit board 14 and the heat sink 30 can be positioned respectively. The positioning of the first circuit board 14 and the heat sink 30 is divided into segments (i.e., the first segment 1311 and the second segment 1312). The length to be processed for each segment (the dimension in the fourth direction, i.e. the dimension in the axial direction of the first positioning pin 131) is shorter. Under the same manufacturing process, this helps to improve the processing accuracy of each segment, that is, improve the processing accuracy of the first segment 1311 and the second segment 1312, improve the installation accuracy of the first circuit board 14 and the heat sink 30, avoid optical performance deviation caused by assembly misalignment, and improve the lighting effect.
[0099] Similarly, when the same machining accuracy is required, the machining difficulty is reduced and the machining efficiency is improved. To facilitate understanding of the resulting technical effects, a counterexample is given below: When the first positioning pin 131 is not segmented, taking a cylindrical shape as an example, the cylindrical side structure used for positioning the first circuit board 14 and the heat sink 30 is continuous, requiring a longer machining length (the dimension in the fourth direction), resulting in a larger manufacturing error, which is not conducive to improving the installation accuracy between multiple components.
[0100] It is worth mentioning that the first segment 1311 and the second segment 1312 both belong to the first positioning pin 131, that is, the first circuit board 14 and the heat sink 30 are installed and positioned with the same reference, which helps to improve the installation accuracy between the first circuit board 14 and the heat sink 30 and improve the heat dissipation efficiency of the heat sink 30.
[0101] In actual assembly, the first circuit board 14 is first moved toward the first reflector 13, and the first positioning pin 131 passes through the positioning hole 50 on the first circuit board 14 until the positioning hole 50 passes through the second segment 1312 and forms a positioning with the first segment 1311 (limiting the relative position between the first circuit board 14 and the first reflector 13 in the radial direction of the first positioning pin 131). The setting of the second segment 1312 will not affect the assembly path of the positioning hole 50. Then, the heat sink 30 is moved toward the first circuit board 14 until the positioning hole 50 on the heat sink 30 forms a positioning with the second segment 1312 (limiting the relative position between the heat sink 30 and the first reflector 13 in the radial direction of the first positioning pin 131). Finally, the first reflector 13, the first circuit board 14 and the heat sink 30 are fastened with fasteners (such as screws, rivets, etc.) (limiting the relative position in the fourth direction).
[0102] It should be noted that the projection of the second segment 1312 onto the reference plane δ is located inside the projection of the first segment 1311 onto the reference plane δ. For ease of understanding, in this embodiment, both the first segment 1311 and the second segment 1312 are cylindrical, meaning the diameter of the second segment 1312 is smaller than the diameter of the first segment 1311. Correspondingly, the diameters of the corresponding positioning holes 50 on the first circuit board 14 and the heat sink 30 are also different. Furthermore, in some embodiments, the shapes of the first segment 1311 and the second segment 1312 can also be other forms, such as frustum-shaped, cross-shaped, etc., and are not limited to these. The fourth direction is as follows... Figure 9 as well as Figure 11 As shown in the center direction U, the direction of the fourth direction is not limited to this. In some embodiments, it can also point to other directions, depending on the specific structure of the headlight.
[0103] In some embodiments, the optical module further includes a second reflector 22 and a second circuit board 23 adapted to the second reflector 22. The second reflector 22 is configured to receive light and reflect the light to a second light guide component 21. The second circuit board 23 is disposed on the side of the heat sink 30 away from the first circuit board 14. The first positioning pin 131 further includes a third segment 1313, which is disposed on the side of the second segment 1312 away from the first segment 1311. The orthographic projection of the third segment 1313 on the plane of the first circuit board 14 is located inside the orthographic projection of the second segment 1312 on the plane of the first circuit board 14. The surface of the second reflector 22 facing the second circuit board 23 is provided with a second positioning pin 221, which is provided with a fourth segment 2211. The second circuit board 23 is provided with positioning holes 50 that are adapted to the third segment 1313 and the fourth segment 2211 respectively.
[0104] In this embodiment, the heat sink 30 is disposed between the first circuit board 14 and the second circuit board 23, and the heat sink 30 can dissipate heat from both circuit boards simultaneously. The second positioning pin 221 is disposed on the second reflector 22, which avoids the second positioning pin 221 being disposed on the heat sink 30. This is similar to the first positioning pin 131 being disposed on the first reflector 13 in the previous embodiment, and will not be described again here. This is beneficial to the stability of the heat sink 30 structure, and the heat sink 30 can fit better between the first circuit board 14 and the second circuit board 23, thereby improving the heat dissipation efficiency of the heat sink 30.
[0105] In this embodiment, the second circuit board 23 and the first reflector 13 are positioned by the third segment 1313 (limiting the relative position of the first reflector 13 and the second circuit board 23 in the radial direction of the first positioning pin 131). At the same time, an additional positioning hole 50 is provided on the second circuit board 23. The positioning hole 50 cooperates with the fourth segment 2211 on the second positioning pin 221 to realize the positioning between the second reflector 22 and the second circuit board 23 (limiting the relative position of the second reflector 22 and the second circuit board 23 in the radial direction of the second positioning pin 221). The first reflector 13 and the second reflector 22 have the same positioning reference (i.e., the second circuit board 23). This setting can ensure the installation accuracy between the first reflector 13 and the second reflector 22, which is beneficial to improving the light emission effect of the first reflector 13 and the second reflector 22.
[0106] It is worth mentioning that the fourth segment 2211 on the second positioning pin 221 only needs to cooperate with the positioning hole 50 on the second circuit board 23. That is, it is only necessary to ensure the machining accuracy of the fourth segment 2211 to ensure the installation accuracy between the first reflector 13 and the second reflector 22. The machining length (dimension in the first direction) of the fourth segment 2211 is relatively short, which reduces the machining difficulty.
[0107] It should be noted that after positioning is completed, the first reflector 13, the first circuit board 14, the heat sink 30, the second circuit board 23 and the second reflector 22 are fastened with fasteners, which is similar to the fastening operation in the previous embodiment, and will not be described again.
[0108] In some embodiments, a fifth segment 1314 may be provided on the side of the third segment 1313 away from the second segment 1312 (e.g., Figure 13 As shown), the fifth segment 1314 achieves positioning with the second reflector 22. The second positioning pin 221 assists in positioning (since the first positioning pin 131 is stepped, the diameter of the fifth segment 1314 is relatively small, and the structural strength will be reduced. The fourth segment 2211 on the second positioning pin 221 can share part of the force acting on the fifth segment 1314), further improving the positioning accuracy. Of course, the setting of the second positioning pin 221 can also be omitted, as long as the structural strength of the fifth segment 1314 meets the positioning installation requirements.
[0109] In some embodiments, the first positioning pin 131 may only have a first segment 1311 and a second segment 1312, while the second positioning pin 221 also has two stepped positioning sections, used for positioning the second circuit board 23 and the heat sink 30 and the second reflector 22, respectively. With this configuration, the first reflector 13 and the second reflector 22 are positioned using a common positioning reference (heat sink 30), improving the installation accuracy between the first reflector 13 and the second reflector 22. Other configurations are possible in other embodiments, and are not limited to this one.
[0110] See Figure 11 as well as Figure 14 The heat sink 30 includes a connecting portion 31 and an extension portion 32. The connecting portion 31 is disposed on the side of the first circuit board 14 away from the first reflector 13, and the extension portion 32 is connected to the side of the connecting portion 31 away from the first light guide component 11. The connecting portion 31 is arranged at an angle between the extension portions 32.
[0111] For ease of explanation, this embodiment will be described using the example of a heat sink 30 being plate-shaped.
[0112] By providing the extension 32, the overall heat dissipation area of the heat sink 30 can be increased, thereby improving the heat dissipation efficiency. The extension 32 and the connecting part 31 are set at an angle, which can reduce the size of the heat sink 30 in the front-rear direction (i.e., the front-rear direction of the vehicle), reduce the overall space occupied by the heat sink 30, and facilitate the structural layout.
[0113] It should be noted that the connecting part 31 is disposed on the side of the first circuit board 14 away from the first reflector 13. In some embodiments, the connecting part 31 is disposed between the first circuit board 14 and the second circuit board 23. The extension part 32 is connected to the side of the connecting part 31 away from the first light guide member 11, that is, the extension part 32 is disposed at the rear end of the connecting part 31.
[0114] In practical applications, since there is no need to set the first positioning pin 131 on the heat sink 30, the heat sink 30 can be formed by bending the sheet metal, which is convenient and improves production efficiency.
[0115] In some embodiments, at least two extensions 32 are provided, and adjacent extensions 32 are arranged in a V-shape; at least two adjacent extensions 32 are provided with a plurality of vent holes 321, and a projection plane η perpendicular to the first direction is set. The area of the orthographic projection of the vent hole 321 on the projection plane η is S1. The orthographic projections of the vent holes 321 on two adjacent extensions 32 on the projection plane η at least partially overlap, and the area of the overlapping part is S2, satisfying: 1 / 5≤S2 / S1≤1.
[0116] By setting multiple extensions 32, the overall heat dissipation area of the heat sink 30 is increased. The V-shaped arrangement between two adjacent extensions 32 helps to reduce the space occupied in the first direction. The number of extensions 32 and the angle between adjacent extensions 32 are set according to the actual product, which will not be elaborated here.
[0117] In this embodiment, ventilation holes 321 are also provided on the extension 32 to increase air circulation and improve heat dissipation. Ventilation holes 321 are provided on two adjacent extensions 32, and the orthographic projections of the ventilation holes 321 on the projection plane η of the two extensions 32 overlap, and the area of the overlapping part is S2. The orthographic projection area of the ventilation holes 321 on the projection plane η is S1. When the ratio of S2 / S1 is less than 1 / 5, the overlapping part of the ventilation holes 321 on the two extensions 32 is small, which is not conducive to air circulation and has limited effect on improving heat dissipation. When the ratio of S2 / S1 is 1, the two ventilation holes 321 completely overlap, and the air circulation effect is better.
[0118] It should be noted that the more vents 321 there are, the smaller the effective heat dissipation area of the extension 32 becomes, and the better the air circulation. Conversely, the fewer vents 321 there are, the larger the effective heat dissipation area of the extension 32 becomes, and the better the heat conduction effect becomes, but the poorer the air circulation. Therefore, in actual products, it is not always better to have more vents 321; a comprehensive consideration is required.
[0119] In some embodiments, the heat sink 30 further includes an attachment 33, which is disposed on the side of the connecting portion 31 and / or the extension portion 32 in the third direction. The attachment 33 increases the heat dissipation area of the heat sink 30, effectively improving its heat dissipation efficiency. Furthermore, the attachment 33 is perpendicular to the third direction, meaning it does not occupy space in that direction, and can be manufactured using bending processes in actual production.
[0120] On the other hand, this application also relates to a vehicle light, including any of the aforementioned optical modules.
[0121] Using the technical solution provided in this application embodiment, the III region 112 is disposed on the peripheral wall of the main body 111, and will not occupy the area of the first light-emitting surface 1112 and the first light-incident surface 1111. The light rays incident on the main body 111 will not be blocked by the III region 112, which is beneficial to improving the lighting effect of the near beam. At the same time, the III region 112 is disposed on the peripheral wall of the main body 111, which avoids damaging the integrity of the first light-emitting surface 1112, improves the integrity of the appearance of the first light guide component 11, and enhances the aesthetics. By disposing of the III region 112 in an area outside the main body 111, the original stray light is fully utilized. The stray light is adjusted by the III region 112 to form the III region. The III region 112 is disposed on the periphery of the main body, which avoids encroaching on the light rays used to form the near beam pattern and also eliminates stray light. In addition, the second light guide component 21 can block the III region 112. When viewed from the light-emitting side, the III region 112 can be avoided, which improves the overall visual effect and the appearance consistency.
[0122] In the various embodiments of this application, unless otherwise specified or logically conflicting, the terminology or descriptions between different embodiments are consistent and can be referenced mutually. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships. In this application, "at least one" means one or more, and "more than one" means two or more.
[0123] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.
[0124] The optical module and vehicle light provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand this application and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An optical module characterized by comprising: The optical module comprises: a first light guide component, comprising a main body part and a III region part, the III region part being arranged on the periphery of the main body part in a first direction, the first direction being parallel to the main light exit direction of the first light guide component; and a second light guide component, arranged on one side of the first light guide component in a second direction, and arranged on the light exit side of the first light guide component in the first direction, the second direction being perpendicular to the first direction; the III region part is arranged on the side of the main body part close to the second light guide component, a projection plane η perpendicular to the first direction is set, and the orthographic projection of the III region part on the projection plane η is within the orthographic projection of the second light guide component on the projection plane η.
2. The optical module of claim 1, wherein the III region part has a fourth light entrance surface and a fourth light exit surface arranged at intervals in the first direction, the fourth light entrance surface is a curved surface protruding towards the light exit side of the first light guide component, and the fourth light exit surface is arranged as a plane; in the direction of the first light guide component towards the second light guide component, the slope of the fourth light entrance surface gradually decreases, and the fourth light entrance surface is a converging surface.
3. The optical module of claim 1, further comprising: a third light guide component, arranged in the light exit direction of the first light guide component and the second light guide component; the side of the second light guide component towards the third light guide component has a second light exit surface, the second light exit surface is a curved surface recessed towards the light entrance side of the second light guide component, the slope of the second light exit surface gradually decreases in the direction from the first light guide component towards the second light guide component, and the second light exit surface is configured to receive light and diffuse the light to the third light guide component in the second direction.
4. The optical module of claim 3, wherein the first light guide component is configured to receive light and direct the light towards the third light guide component to form a low beam light pattern; in the second direction, the light adjusted by the first light guide component is deflected towards the side of the first light guide component away from the second light guide component.
5. The optical module of claim 4, wherein the main body part has a first light entrance surface and a first light exit surface arranged opposite in the first direction, the first light entrance surface has a plurality of shaped cylinders arranged in a third direction, the generatrix of the shaped cylinders is parallel to the first light exit surface, and the generatrix of the shaped cylinders is perpendicular to the first direction, the first direction, the second direction and the third direction are perpendicular to each other in pairs; the included angle between the incident light of the shaped cylinder and the generatrix of the shaped cylinder is an acute angle, and in the second direction, the incident light of the shaped cylinder is inclined towards the side of the first light guide component away from the second light guide component.
6. The optical module of claim 5, wherein The first light-incident surface further has a supplementary cylindrical surface, a generatrix of the supplementary cylindrical surface gradually increases in spacing from the first light-incident surface in the first direction in a direction from the first light guide component toward the second light guide component; Light rays incident through the supplementary cylindrical surface are referred to as supplementary light rays, and the first light-incident surface is configured to receive the supplementary light rays, which are adjusted through the first light-incident surface and deflected toward a side of the first light guide component closer to the second light guide component in the second direction.
7. The optical module of claim 3, wherein: the third light guide component is configured to receive light rays diffused through the second light guide component and adjust the light rays to be emitted parallel to the first direction, forming a far light distribution.
8. The optical module of claim 1, wherein: the optical module further comprises a first reflector, a first circuit board, and a heat sink, the first reflector is configured to receive light rays and reflect the light rays to the first light guide component, the first circuit board is adapted to the first reflector, and the heat sink is disposed on a side of the first circuit board away from the first reflector; the first reflector is provided with a first positioning pin toward a surface of the first circuit board, the first positioning pin is provided with a first segment and a second segment along a fourth direction, the first segment is disposed between the first reflector and the second segment, and the fourth direction is perpendicular to a board surface of the first circuit board; a normal projection of the second segment on a plane in which the board surface of the first circuit board is located is located inside a normal projection of the first segment on the plane in which the board surface of the first circuit board is located, and the first circuit board and the heat sink are each provided with a positioning hole adapted to the first segment and the second segment, respectively.
9. The optical module of claim 8, wherein: the optical module further comprises a second reflector and a second circuit board adapted to the second reflector, the second reflector is configured to receive light rays and reflect the light rays to the second light guide component, and the second circuit board is disposed on a side of the heat sink away from the first circuit board; the first positioning pin further comprises a third segment, the third segment is disposed on a side of the second segment away from the first segment, and a normal projection of the third segment on a plane in which the board surface of the first circuit board is located is located inside a normal projection of the second segment on the plane in which the board surface of the first circuit board is located; the second reflector is provided with a second positioning pin toward a surface of the second circuit board, the second positioning pin is provided with a fourth segment, and the second circuit board is provided with positioning holes adapted to the third segment and the fourth segment, respectively.
10. The optical module of claim 8, wherein: the heat sink comprises a connecting portion and an extending portion, the connecting portion is disposed on a side of the first circuit board away from the first reflector, and the extending portion is connected to a side of the connecting portion away from the first light guide component; the connecting portion is disposed at an angle between the extending portion; the extending portion is provided with at least two extending portions, and adjacent extending portions are disposed in a V shape. At least two adjacent extension portions are provided with a plurality of air permeable holes, a projection plane η perpendicular to the first direction is set, the area of the orthogonal projection of the air permeable holes on the projection plane η is S1, the orthogonal projections of the air permeable holes on the projection plane η of the two adjacent extension portions at least partially overlap, the area of the overlapping part is S2, and 1 / 5≤S2 / S1≤1 is met.