Light guide component, optical module and vehicle lamp

Abstract

The invention discloses a light guide component, an optical module and a vehicle lamp. The light guide component is provided with a first light emitting face and a first light incident face. The first light emitting surface is divided into a diffusion area and a reflection area, the diffusion area is provided with diffusion patterns, and the diffusion patterns are configured to diffuse light rays incident to the diffusion patterns; the reflecting area is provided with reflecting patterns, each reflecting pattern is provided with a first reflecting surface and a photon emitting surface which are adjacent to each other and are arranged at an angle, the first reflecting surface is configured to totally reflect light rays incident to the first reflecting surface and emit the light rays perpendicular to the photon emitting surface, and the normal direction of the photon emitting surface and the main light emitting direction of the light guide component are arranged at an angle. Through the arrangement of the reflecting patterns, it is guaranteed that all light rays reflected by the first reflecting face are emitted to the corresponding area from the light-emitting sub-face, the loss of the light rays caused by a refraction lamp is effectively reduced, and the requirements of laws and regulations are met.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle lamp lighting, and particularly to a light guide component, an optical module and a vehicle lamp. Background Art

[0002] With the trend of vehicle lamps, the diversity of shapes is becoming increasingly important in the field of vehicle lamps. The application of thick-wall components in vehicle lamps will be more and more extensive, and vehicle lamps with thick-wall component shapes are gradually occupying the market. In the past, the shapes of vehicle lamps were relatively single, and most thick-wall component optical systems could meet the requirements of the visible angle regulations. However, in recent years, with the diversified design of vehicle lamp shapes, the requirements for signal lamp design have become higher and higher. The light-emitting position and the size of the light-emitting area are restricted by many factors. Therefore, more and more thick-wall component optical systems have also appeared the phenomenon that they cannot well meet the large visible angle regulations. At present, when the large visible angle cannot meet the visible angle regulations, the design can only add patterns on the inner side of the light distribution lens. However, making visible angle patterns on the inner side of the light distribution lens greatly affects the static appearance and lighting effect of the lamp, and reduces the lamp quality.

[0003] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0004] The present application aims to at least solve one of the technical problems existing in the prior art, and provides a light guide component, an optical module and a vehicle lamp.

[0005] According to one aspect of the present application, the present application provides a light guide component, which has a first light-emitting surface and a first light-incident surface. The first light-emitting surface is configured to receive the light incident from the first light-incident surface; the first light-emitting surface is divided into a diffusion area and a reflection area. The diffusion area is provided with diffusion patterns, and the diffusion patterns are configured to diffuse the light incident on the diffusion patterns; the reflection area is provided with reflection patterns, and the reflection patterns have a first reflecting surface and a light-emitting sub-surface that are adjacent to each other and are arranged at an angle. The first reflecting surface is configured to totally reflect the light incident on the first reflecting surface and emit it perpendicularly to the light-emitting sub-surface, and the normal direction of the light-emitting sub-surface is arranged at an angle with the main light-emitting direction of the light guide component.

[0006] In one embodiment, the connection between the first reflecting surface and the light-emitting sub-surface is provided with a rounded corner, and the radius of the rounded corner is R mm, satisfying: 0.05 ≤ R ≤ 0.15.

[0007] In one embodiment, the first light-emitting surface is disposed opposite to the first light-incident surface; the first light-incident surface is provided with first planar patterns, and the first planar patterns include a plurality of arrayed first sub-planes, and the first sub-planes are configured to be substantially perpendicular to the incident light.

[0008] In one embodiment, the reflection area is disposed at the edge of the first light-emitting surface.

[0009] According to another aspect of the present application, there is provided an optical module, including the light guiding component described in any one of the foregoing. The optical module further includes a light processing component, which is disposed on the light incident side of the light guiding component, and the light guiding component is configured to receive the light emitted from the light processing component; the light processing component has a second light emitting surface, a second light incident surface, and a second reflecting surface, and the second reflecting surface is configured to adjust the light incident from the second light incident surface into parallel light and emit it towards the second light emitting surface; the second light emitting surface is provided with a second planar pattern, and the second planar pattern includes a plurality of arrays of second sub - planes, and the second sub - planes are substantially perpendicular to the parallel light.

[0010] In one embodiment, it further includes a printed circuit board and a light emitting unit, and the light emitting unit is disposed on a part of the printed circuit board opposite to the second light incident surface; taking a reference plane perpendicular to the main light emitting direction of the light guiding component as a projection plane, the positive projections of the second light emitting surface and the printed circuit board on the reference plane are located within the positive projection of the first light incident surface on the reference plane.

[0011] In one embodiment, the printed circuit board is positioned on the light processing component through a positioning structure, and the positioning structure includes a positioning hole and at least two positioning posts; the positioning hole is disposed on the printed circuit board, the positioning posts are disposed on the light processing component, the positioning posts include a connected first post segment and a second post segment, and the cross - sectional area of the first post segment is larger than that of the second post segment to form a limiting surface at the connection of the first post segment and the second post segment; the second post segment is inserted into the positioning hole to define the relative position of the printed circuit board and the light processing component in the radial direction of the second post segment; and the printed circuit board is configured to be pressed against the limiting surface.

[0012] In one embodiment, the second light incident surface is a curved surface connected by multiple cylindrical surfaces to diffuse the light incident on the second light incident surface.

[0013] In one embodiment, it further includes a decorative ring; the light guiding component includes a first sub - part and a second sub - part, and the cross - sectional area of the first sub - part is smaller than that of the second sub - part to form a mounting surface at the connection of the first sub - part and the second sub - part, the first light emitting surface is disposed on a side of the first sub - part away from the second sub - part, and the first light incident surface is disposed on a side of the second sub - part away from the first sub - part; the decorative ring is sleeved on the first sub - part and attached to the mounting surface.

[0014] According to another aspect of the present application, there is provided a vehicle lamp, including the optical module described in any one of the foregoing.

[0015] The beneficial effects of the present application are as follows: Through the setting of the diffusion pattern, the light incident on the diffusion pattern (diffusion area) is distributed and diffused, effectively improving the uniformity of the overall light output of the light guide component; at the same time, the light incident on the reflection area is totally reflected by the first reflection surface and then exits perpendicularly to the light-emitting sub-plane, which can ensure that all the light reflected by the first reflection surface exits from the light-emitting sub-plane to the corresponding area, effectively reducing the loss of light caused by refraction and other reasons, and ensuring that the illumination brightness in the corresponding area meets the design requirements; the normal direction of the light-emitting sub-plane is set at an angle with the main light-emitting direction of the light guide component, so that the light reflected by the reflection pattern is distributed to the large-angle visible angle area, meeting the regulatory requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following will, by way of a detailed description of the specific embodiments of the present application in conjunction with the drawings, make the technical solutions and other beneficial effects of the present application obvious.

[0017] Figure 1 is a schematic structural diagram of an optical module provided by an embodiment of the present application.

[0018] Figure 2 is Figure 1 an exploded view of

[0019] Figure 3 is a schematic diagram of light propagation provided by an embodiment of the present application.

[0020] Figure 4 is Figure 3 an enlarged view of part A in

[0021] Figure 5 is Figure 3 an enlarged view of part B in

[0022] Figure 6 is a schematic diagram of an optical processing component provided by an embodiment of the present application.

[0023] Figure 7 is a schematic diagram of a light guide component provided by an embodiment of the present application.

[0024] Figure 8 is a schematic diagram of the use of a light guide component provided by an embodiment of the present application.

[0025] In the figure:

[0026] 10. Light guide component; 11. First light-emitting surface; 111. Diffusion pattern; 112. Reflection pattern; 1121. First reflection surface; 1122. Light-emitting sub-plane; 1123. Rounded corner; 12. First light-incident surface; 121. First planar pattern; 1211. First sub-plane; 13. First sub-part; 14. Second sub-part; 15. Mounting surface;

[0027] 20. Optical processing component; 21. Second light-emitting surface; 211. Second planar pattern; 2111. Second sub-plane; 22. Second light-incident surface; 23. Second reflecting surface; 24. Parallel light rays;

[0028] 30. Printed circuit board; 31. Light-emitting unit;

[0029] 40. Positioning structure; 41. Positioning hole; 42. Positioning post; 421. First post segment; 422. Second post segment; 423. Limiting surface;

[0030] 50. Decorative ring;

[0031] 60. Light distribution lens. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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, an electrical connection, or a connection capable of mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. 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.

[0034] Next, the light guide component, optical module, and vehicle lamp in the present application will be elaborated in detail in conjunction with the accompanying drawings and specific embodiments.

[0035] In the prior art, a viewing angle pattern is provided inside the light distribution lens to meet the requirements of viewing angle regulations. However, making the viewing angle pattern inside the light distribution lens greatly affects the static appearance and lighting effect of the lamp, reducing the quality of the lamp.

[0036] To solve the above technical problems, an embodiment of the present application provides a light guide component, which has a first light-emitting surface and a first light-incident surface. The first light-emitting surface is configured to receive light incident from the first light-incident surface. The first light-emitting surface is divided into a diffusion area and a reflection area. The diffusion area is provided with diffusion patterns, and the diffusion patterns are configured to diffuse the light incident on the diffusion patterns. The reflection area is provided with reflection patterns, and the reflection patterns have a first reflection surface and a light-emitting sub-surface that are adjacent to each other and arranged at an angle. The first reflection surface is configured to totally reflect the light incident on the first reflection surface and emit it perpendicularly to the light-emitting sub-surface, and the normal direction of the light-emitting sub-surface is arranged at an angle with the main light-emitting direction of the light guide component. The following will be elaborated in detail.

[0037] Referring to Figure 1 , Figure 3 , Figure 4 and Figure 7 , in one embodiment, the light guide component 10 has a first light-emitting surface 11 and a first light-incident surface 12. The first light-emitting surface 11 is configured to receive light incident from the first light-incident surface 12. The first light-emitting surface 11 is divided into a diffusion area and a reflection area. The diffusion area is provided with diffusion patterns 111, and the diffusion patterns 111 are configured to diffuse the light incident on the diffusion patterns 111. The reflection area is provided with reflection patterns 112, and the reflection patterns 112 have a first reflection surface 1121 and a light-emitting sub-surface 1122 that are adjacent to each other and arranged at an angle. The first reflection surface 1121 is configured to totally reflect the light incident on the first reflection surface 1121 and emit it perpendicularly to the light-emitting sub-surface 1122, and the normal direction of the light-emitting sub-surface 1122 is arranged at an angle with the main light-emitting direction of the light guide component 10.

[0038] The light incident on the diffusion area is distributed and diffused by the action of the diffusion patterns 111, effectively improving the uniformity of the overall light emission of the light guide component 10. At the same time, the light incident on the reflection area is totally reflected by the first reflection surface 1121 and then emitted perpendicularly to the light-emitting sub-surface 1122, which can ensure that all the light reflected by the first reflection surface 1121 is emitted from the light-emitting sub-surface 1122 to the corresponding area, effectively reducing the light loss and ensuring that the illumination brightness of the corresponding area meets the design requirements. When the light reflected from the first reflection surface 1121 is not perpendicular to the light-emitting sub-surface 1122, part of the light will be refracted when passing through the light-emitting sub-surface 1122, resulting in that not all the light emitted from the light-emitting sub-surface 1122 can reach the corresponding area, and the illumination brightness of the corresponding area cannot meet the design requirements.

[0039] It should be noted that the corresponding area is the area where the light finally needs to be lit or irradiated during the actual use of the light guide component 10. In this embodiment, the diffusion patterns 111 can be fisheye patterns (curved surfaces protruding towards the light-emitting side of the light guide component 10, such asFigure 4 As shown (in other embodiments, it may also be set in other forms. Considering factors such as the specific structure of the light guide component 10 and the required static appearance, it is sufficient to evenly diffuse the light to the corresponding area to meet the usage requirements, not limited to this).

[0040] In addition, the normal direction of the light-emitting sub-surface 1122 (such as Figure 3 the direction Y shown in the figure) and the main light-emitting direction of the light guide component 10 (such as Figure 3 the direction X shown in the figure) are set at an angle, that is, the light emitted from the light-emitting sub-surface 1122 forms an angle with the main light-emitting direction of the light guide component 10. The light reflected by the reflection pattern 112 is distributed to the large-angle viewable area, meeting the regulatory requirements.

[0041] In some embodiments, by adding a patch-type viewable angle pattern to the external glasses, the light is refracted to meet the regulatory requirements. However, making the viewable angle pattern inside the light distribution lens 60 greatly affects the static appearance and lighting effect of the lamp, reducing the lamp quality; while in this embodiment, by setting the reflection pattern 112 on the first light-emitting surface 11, while meeting the viewable angle regulatory requirements, the lamp has a good static appearance and improves the lamp quality.

[0042] Refer to Figure 4 , in one embodiment, the connection between the first reflection surface 1121 and the light-emitting sub-surface 1122 is provided with a rounded corner 1123, and the radius of the rounded corner 1123 is R mm, satisfying: 0.05 ≤ R ≤ 0.15, such as 0.05, 0.10, 0.15, etc.

[0043] When no rounded corner 1123 is provided between the first reflection surface 1121 and the light-emitting sub-surface 1122, the connection between the two is prone to damage under the influence of external collisions, etc., which will affect the integrity of the first reflection surface 1121 and the light-emitting sub-surface 1122, and further affect the reflection effect of the light. Moreover, when there is no rounded corner 1123, the connection between the two is too sharp and is likely to scratch the operator during the assembly process; therefore, the rounded corner 1123 ensures the reflection effect of the reflection pattern 112 on the light.

[0044] When the value of R is less than 0.05, the value of R is too small. Although the smaller the value of R, the larger the effective area (the area acting on the light) between the first reflecting surface 1121 and the light-emitting surface 1122, the smaller the value of R will increase the processing difficulty and processing cost. When the value of R is greater than 0.15, the value of R is too large, and the effective area between the first reflecting surface 1121 and the light-emitting surface 1122 becomes smaller, which is not conducive to the reflection of light because more light will be irradiated on the rounded corner 1123 and cannot be fully reflected, so the light cannot be distributed to the corresponding area, and the design requirements of the light guide component 10 cannot be met. However, the larger the value of R, the lower the processing difficulty and the processing cost will also be reduced.

[0045] Therefore, when 0.05 ≤ R ≤ 0.15, it can not only ensure reasonable processing difficulty and processing cost, but also ensure a reasonable effective area between the first reflecting surface 1121 and the light-emitting surface 1122.

[0046] In some embodiments, when the overall size of the light guide component 10 is very large, correspondingly, the size of the reflection pattern 112 will also increase. When R takes a larger value, the influence on the effective area between the first reflecting surface 1121 and the light-emitting surface 1122 is smaller. At this time, the value of R can be greater than 0.15, which is comprehensively considered according to factors such as the actual size of the product and the usage requirements.

[0047] Refer to Figure 3 and Figure 5 In an embodiment, the first light-emitting surface 11 and the first light-incident surface 12 are arranged opposite to each other; the first light-incident surface 12 is provided with a first planar pattern 121, and the first planar pattern 121 includes a plurality of arrays of first sub-planar surfaces 1211, and the first sub-planar surfaces 1211 are configured to be substantially perpendicular to the incident light.

[0048] The first sub-planar surface 1211 is configured to be perpendicular to the incident light, which can ensure that the incident light does not deflect after passing through the first sub-planar surface 1211, avoiding the refraction and diffusion of the incident light when passing through the first sub-planar surface 1211, making the light incident into the light guide component 10 more concentrated, and most of the light can directly irradiate on the first light-emitting surface 11 opposite to the first light-incident surface 12, effectively improving the intensity of the light. At the same time, patterns are provided on both opposite sides of the light guide component 10 (the first light-emitting surface 11 is provided with a diffusion pattern 111 and a reflection pattern 112, and the first light-incident surface 12 is provided with a first planar pattern 121), avoiding seeing other components inside the lamp, such as the printed circuit board 30, etc. through the light guide component 10 under static conditions, making the lamp have a good appearance when viewed statically.

[0049] It should be noted that the array can be an arc array or a linear array, and relevant designs are carried out according to the specific shape of the first light incident surface 12; the multiple first sub-planes 1211 arranged in an array can ensure that the light incident at each position is perpendicular to the corresponding first sub-plane 1211.

[0050] In addition, due to reasons such as processing dimension deviations of parts, the first sub-plane 1211 is basically perpendicular to the incident light, that is, the incident light and the first sub-plane 1211 are not necessarily absolutely perpendicular, and there can be a certain deviation.

[0051] Refer to Figure 8 , in an embodiment, the reflection area is arranged at the edge of the first light emitting surface 11.

[0052] In this embodiment, the reflection area (i.e., the reflection pattern 112) is arranged at the edge of the first light emitting surface 11, and the reflection area will not affect the overall lighting effect of the first light emitting surface 11. When the reflection area is arranged in the middle part of the first light emitting surface 11, part of the light in the middle area will deviate from the main light emitting direction of the light guiding component 10 under the action of the reflection pattern 112 (see the foregoing embodiment), making the light in this part dimmer, which is not conducive to the overall lighting effect of the light guiding component 10.

[0053] When the reflection area is arranged at the edge of the first light emitting surface 11, the above-mentioned defects will not exist, and when the reflection area is arranged at the edge, the lamp has a good static appearance.

[0054] Refer to Figure 2 , Figure 3 , Figure 5 and Figure 6 , on the other hand, the present application also relates to an optical module, including any one of the foregoing light guiding components 10; the optical module further includes a light processing component 20, the light processing component 20 is arranged on the light incident side of the light guiding component 10, and the light guiding component 10 is configured to receive the light emitted from the light processing component 20; the light processing component 20 has a second light emitting surface 21, a second light incident surface 22 and a second reflection surface 23, and the second reflection surface 23 is configured to adjust the light incident from the second light incident surface 22 into parallel light rays 24 and emit them towards the second light emitting surface 21; the second light emitting surface 21 is provided with a second planar pattern 211, the second planar pattern 211 includes a plurality of arrayed second sub-planes 2111, and the second sub-planes 2111 are basically perpendicular to the parallel light rays 24.

[0055] The second sub-plane 2111 is configured to be perpendicular to the parallel light rays 24, which can ensure that the parallel light rays 24 do not deflect after passing through the second sub-plane 2111, avoiding the refraction and diffusion of the parallel light rays 24 when passing through the second sub-plane 2111, making the light incident on the light guiding component 10 more concentrated, and the vast majority of the light can directly irradiate the first light incident surface 12, effectively improving the intensity of the light.

[0056] It should be noted that the array can be an arc array or a linear array, and relevant designs are carried out according to the specific shape of the second light-emitting surface 21; the multiple second sub-planes 2111 arranged in an array can ensure that the parallel light rays 24 incident at each position are perpendicular to the corresponding second sub-planes 2111.

[0057] In addition, due to reasons such as processing size deviations of components, the second sub-planes 2111 are basically perpendicular to the parallel light rays 24, that is, there may not be an absolute perpendicularity between the parallel light rays 24 and the second sub-planes 2111, and there can be a certain deviation.

[0058] In some embodiments, the first light-incident surface 12 is provided with a first planar pattern 121. For details, refer to the foregoing embodiments and will not be elaborated here; through the cooperation of the first planar pattern 121 and the second planar pattern 211, the intensity of the light rays emitted from the first light-emitting surface 11 can be ensured, and the overall lighting effect is improved.

[0059] Refer to Figure 2 、 Figure 4 and Figure 8 , in an embodiment, the optical module further includes a printed circuit board 30 and a light-emitting unit 31, and the light-emitting unit 31 is disposed on a part of the printed circuit board 30 opposite to the second light-incident surface 22; taking the reference plane perpendicular to the main light-emitting direction of the light guide member 10 as the projection plane, the orthographic projections of the second light-emitting surface 21 and the printed circuit board 30 on the reference plane are located within the orthographic projection of the first light-incident surface 12 on the reference plane.

[0060] In this embodiment, the area of the first light-incident surface 12 is relatively large and can cover the second light-emitting surface 21 and the second printed circuit board 30 (as shown in Figure 8 ). When the lamp is static, the internal components (printed circuit board 30) can be avoided from being observed, so that the lamp has a good static appearance; in addition, the relatively large area of the first light-incident surface 12 can also fully receive the light rays emitted from the second light-emitting surface 21, effectively improving the intensity of the light rays emitted from the first light-emitting surface 11 and enhancing the lighting effect of the lamp.

[0061] It should be noted that the reference plane is as shown by the middle plane λ in Figure 3 .

[0062] Refer to Figure 1 、 Figure 2 and Figure 6, in one embodiment, the printed circuit board 30 is positioned relative to the optical processing component 20 by a positioning structure 40. The positioning structure 40 includes a positioning hole 41 and four positioning posts 42. The positioning hole 41 is provided on the printed circuit board 30, and the positioning posts 42 are provided on the optical processing component 20. The positioning posts 42 include a first post segment 421 and a second post segment 422 connected to each other. The cross-sectional area of the first post segment 421 is larger than that of the second post segment 422, so as to form a limiting surface 423 at the connection between the first post segment 421 and the second post segment 422. The second post segment 422 is inserted into the positioning hole 41 to define the relative position of the printed circuit board 30 and the optical processing component 20 in the radial direction of the second post segment 422. And the printed circuit board 30 is configured to be crimped to the limiting surface 423.

[0063] Through the arrangement of the positioning structure 40, the relative position between the printed circuit board 30 and the optical processing component 20 can be defined, ensuring that the light emitted by the light-emitting unit 31 enters the optical processing component 20 stably and reliably. The structure is simple. The positioning of the printed circuit board in the radial direction of the second post segment 422 can be achieved only by inserting the second post segment 422 into the positioning hole 41. At the same time, the printed circuit board 30 is crimped to the limiting surface 423, defining the relative position of the printed circuit board 30 and the optical processing component 20 in the axial direction of the second post segment 422.

[0064] In this embodiment, by setting the distance from the limiting surface 423 to the optical processing component 20, the distance from the printed circuit board 30 to the optical processing component 20 can be further controlled, realizing the control of the distance from the light-emitting unit 31 to the second light-incident surface 22, and corresponding settings can be made according to factors such as the power and light-emitting range of the light-emitting unit 31.

[0065] In this embodiment, the second post segment 422 can be a thermal riveting post to realize the crimping of the printed circuit board 30 to the limiting surface 423. In some embodiments, it can also be fixed by screws or other means, not limited to this.

[0066] In one embodiment, the second light-incident surface 22 is a curved surface formed by connecting multiple cylindrical surfaces, so as to diffuse the light incident on the second light-incident surface 22. The structure is simple, capable of diffusing light, and effectively improving the overall illumination range.

[0067] Refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8, in one embodiment, the optical module further includes a bezel 50; the light guide member 10 includes a first sub - portion 13 and a second sub - portion 14. The cross - sectional area of the first sub - portion 13 is smaller than that of the second sub - portion 14 to form a mounting surface 15 at the connection between the first sub - portion 13 and the second sub - portion 14. The first light - emitting surface 11 is disposed on the side of the first sub - portion 13 facing away from the second sub - portion 14, and the first light - incident surface 12 is disposed on the side of the second sub - portion 14 facing away from the first sub - portion 13; the bezel 50 is sleeved on the first sub - portion 13 and attached to the mounting surface 15.

[0068] In this embodiment, the bezel 50 is made of a black light - shielding material, and the edge of the bezel 50 extends beyond the first light - incident surface 12; the setting of the bezel 50 can play a decorative role, making the lamp have a good static appearance. At the same time, the bezel 50 can also block light, avoiding light leakage when the lamp is lit, and improving the lighting effect of the lamp.

[0069] It should be noted that the bezel 50 and the light guide member 10 can be processed by two - color injection molding, or the two can be fastened together by screws, thermal riveting, etc., not limited to this.

[0070] On the other hand, the present application also relates to a vehicle lamp, including any one of the foregoing optical modules.

[0071] In this embodiment, the vehicle lamp is a right - hand (the side of the vehicle close to the co - driver) rear signal lamp. When the light guide member 10 is used at the angle as Figure 8 shown, under the action of the reflection pattern 112, the light is distributed to the right side, broadening the visible angle range and meeting the regulatory requirements.

[0072] Adopting the technical solution provided by the embodiment of the present application aims to distribute and diffuse the light incident on the diffusion pattern 111 (diffusion area) through the setting of the diffusion pattern 111, effectively improving the uniformity of the overall light emission of the light guide member 10; at the same time, the light incident on the reflection area is totally reflected by the first reflection surface 1121 and then emitted perpendicularly to the light - emitting sub - surface 1122, which can ensure that all the light reflected by the first reflection surface 1121 is emitted from the light - emitting sub - surface 1122 to the corresponding area, effectively reducing the loss of light caused by reasons such as refraction, and ensuring that the illumination brightness of the corresponding area meets the design requirements; the normal direction of the light - emitting sub - surface 1122 is set at an angle with the main light - emitting direction of the light guide member 10, so that the light reflected by the reflection pattern 112 is distributed to a large - angle visible - angle area, meeting the regulatory requirements.

[0073] In various embodiments of the present application, if there is no special description and logical conflict, the terms or descriptions between different embodiments are consistent and can be cross-referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships. In the present application, "at least one" means one or more, and "a plurality" means two or more than two.

[0074] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The magnitudes of the serial numbers of the above processes do not mean the sequence of execution, and the execution sequence of each process should be determined according to its function and internal logic.

[0075] The above has introduced in detail the light guide component, the optical module and the vehicle lamp provided by the embodiments of the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A light guide component, characterized in that: It has a first light emitting surface and a first light incident surface, wherein the first light emitting surface is configured to receive light incident from the first light incident surface; The first light emitting surface is divided into a diffusion area and a reflection area, the diffusion area is provided with a diffusion pattern, and the diffusion pattern is configured to diffuse the light incident on the diffusion pattern; The reflective area is provided with a reflective pattern, and the reflective pattern has a first reflective surface and a photon-emitting surface which are adjacent to each other and set at an angle. The first reflective surface is configured to totally reflect the light incident on the first reflective surface and emit it perpendicular to the photon-emitting surface, and the normal of the photon-emitting surface is set at an angle to the main light emitting direction of the light-guiding component.

2. The light guide component according to claim 1, wherein: The connection between the first reflecting surface and the photon emitting surface is rounded, and the radius of the rounded corner is R mm, satisfying: 0.05≤R≤0.

15.

3. The light guide component according to claim 1, wherein: The first light emitting surface is arranged opposite to the first light incident surface; The first light incident surface is provided with a first plane pattern, and the first plane pattern includes a plurality of arrays of first sub-planes, and the first sub-planes are configured to be substantially perpendicular to the incident light.

4. The light guide component according to claim 1, wherein: The reflection area is arranged at the edge of the first light emitting surface.

5. An optical module, characterized in that: The optical module comprises a light guide component according to any one of claims 1 to 4, wherein the optical module further comprises a light processing component, the light processing component is arranged on a light incident side of the light guide component, and the light guide component is configured to receive light emitted from the light processing component; The light processing component has a second light emitting surface, a second light incident surface and a second reflecting surface, wherein the second reflecting surface is configured to adjust the light incident from the second light incident surface into parallel light and emit the parallel light to the second light emitting surface; The second light emitting surface is provided with a second plane pattern, and the second plane pattern includes a plurality of arrays of second sub-planes, and the second sub-planes are substantially perpendicular to the parallel light rays.

6. The optical module according to claim 5, wherein: It also includes a printed circuit board and a light-emitting unit, wherein the light-emitting unit is arranged at a portion of the printed circuit board opposite to the second light incident surface; A reference plane perpendicular to the main light emitting direction of the light guide component is used as a projection plane, and the orthographic projections of the second light emitting surface and the printed circuit board on the reference plane are located within the orthographic projection of the first light incident surface on the reference plane.

7. The optical module according to claim 6, wherein: The printed circuit board is positioned on the optical processing component through a positioning structure, wherein the positioning structure includes a positioning hole and at least two positioning posts; The positioning hole is provided on the printed circuit board, the positioning column is provided on the optical processing component, the positioning column comprises a first column segment and a second column segment connected, the cross-sectional area of ​​the first column segment is larger than the cross-sectional area of ​​the second column segment, so as to form a limiting surface at the connection between the first column segment and the second column segment; The second column segment is inserted into the positioning hole to define the relative positions of the printed circuit board and the optical processing component in the radial direction of the second column segment; and the printed circuit board is configured to be pressed against the limiting surface.

8. The optical module according to claim 5, wherein: The second light incident surface is a curved surface formed by connecting multiple cylindrical sections to diffuse the light incident on the second light incident surface.

9. The optical module according to claim 5, wherein: Also includes bezel; The light guide component includes a first sub-section and a second sub-section, the cross-sectional area of ​​the first sub-section is smaller than the cross-sectional area of ​​the second sub-section, so as to form a mounting surface at the connection between the first sub-section and the second sub-section, the first light emitting surface is arranged on a side of the first sub-section away from the second sub-section, and the first light incident surface is arranged on a side of the second sub-section away from the first sub-section; The decorative ring is sleeved on the first sub-portion and attached to the mounting surface.

10. A vehicle lamp, characterized in that: Comprising the optical module as claimed in any one of claims 1 to 9.

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