Optical module and vehicle lamp
By designing the lens structure of the optical module and utilizing the diffusion and convergence arcs, the problem of limited light illumination width was solved, achieving a wider illumination range and more uniform illumination, thus improving driving safety.
Patent Information
- Application Number
- CN202423157874.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In existing technologies, the width of the lighting is limited by the vehicle's dimensions, which cannot meet the needs of different driving scenarios and affects driving safety.
Design an optical module with a lens having a symmetrically arranged first incident light surface and a diffusion arc. After passing through the diffusion arc, the light diffuses laterally. Combined with other structures of the lens, such as a converging arc and a reflective surface, the illumination width and uniformity are improved.
It effectively improves the width and uniformity of lateral and longitudinal illumination, enhances vehicle lighting effects, and improves driving safety.
Smart Images
Figure CN223537436U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive lighting technology, and more particularly to an optical module and an automotive lamp. Background Technology
[0002] With the continuous development of the automotive industry, people's requirements for automotive lighting are getting higher and higher. Different driving scenarios require lights with different intensities and illumination ranges. In existing technologies, the width of the lighting beam is limited by factors such as vehicle size, and the width of the lighting beam cannot meet the usage requirements, which is detrimental to driving safety.
[0003] Therefore, improvements to existing technologies are necessary. Utility Model Content
[0004] This application aims to solve at least one of the technical problems existing in the prior art, and to provide an optical module and vehicle light.
[0005] According to one aspect of this application, an optical module is provided, including a lens and a light source. The lens has an emitting surface and a first incident surface disposed opposite to each other. The light source is disposed on the side of the lens away from the emitting surface. The first incident surface is configured to be symmetrically arranged on both sides of a symmetrical reference plane, and a first diffusion arc segment is formed by a first reference plane parallel to the symmetrical reference plane as a cross section of the first incident surface. The first diffusion arc segment protrudes toward the side away from the light source.
[0006] In one embodiment, the light-emitting surface is transversely cut across the first reference plane to obtain a second diffusion arc segment, which protrudes toward the side away from the light source.
[0007] In one embodiment, the first diffusion arc segment is an arc segment; a second reference plane perpendicular to the first reference plane and radially coinciding with the first diffusion arc segment is used as a cross section to cross the first light incident surface to obtain a converging arc segment, the middle part of which protrudes toward the light source.
[0008] In one embodiment, the first diffusion arc segment is an arc segment; the optical module has a preset direction, which is perpendicular to the symmetry reference plane; the lens also has two second light-incident surfaces; the two second light-incident surfaces are disposed at opposite ends of the first light-incident surface in the preset direction; the two second light-incident surfaces are respectively transversely cut by a second reference plane that is perpendicular to the first reference plane and radially coincides with the first diffusion arc segment, resulting in two refractive line segments; the two refractive line segments are not parallel, and in the preset direction, the distance between the two refractive line segments gradually decreases in the direction from the light source toward the lens.
[0009] In one embodiment, the second light-incident surface is transversely cut by a third reference plane parallel to the symmetry reference plane to obtain a third diffusion arc segment, which protrudes toward the side away from the light source.
[0010] In one embodiment, the lens further has two reflecting surfaces, which are disposed at both ends of the lens in the preset direction; the two reflecting surfaces are respectively transversely cut by the second reference plane to obtain two reflecting line segments; the two reflecting line segments are not parallel, and in the preset direction, the distance between the two reflecting line segments gradually increases in the direction from the light source toward the lens.
[0011] In one embodiment, the reflective surface is transversely cut by a fourth reference plane parallel to the symmetric reference plane to obtain a fourth diffusion arc segment; the fourth diffusion arc segment protrudes toward the side away from the light source.
[0012] In one embodiment, the first diffusion arc segment is a circular arc segment, and the central angle corresponding to the first diffusion arc segment is β, satisfying: 145°≤β≤160°.
[0013] In one embodiment, the lens has a clearance plane on the side facing the light source; the first light-incident surface and two second light-incident surfaces are connected to each other to form a converging cavity with an opening facing the light source, and the clearance plane is disposed on the periphery of the opening of the converging cavity.
[0014] According to another aspect of this application, a vehicle lamp is provided, including any of the optical modules described above.
[0015] The first diffusion arc segment of this application protrudes towards the side away from the light source. After passing through the first diffusion arc segment, the light is diffused laterally to different places on the light-emitting surface, and then emitted after passing through the light-emitting surface, effectively increasing the lateral illumination width and having a wider illumination range. Attached Figure Description
[0016] 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.
[0017] Figure 1 This is a schematic diagram of a lens provided in an embodiment of this application.
[0018] Figure 2 yes Figure 1 The main view.
[0019] Figure 3 yes Figure 2 Sectional view at point AA.
[0020] Figure 4 yes Figure 3 Enlarged view of point E in the middle.
[0021] Figure 5 yes Figure 2 A cross-sectional view of another embodiment at point AA.
[0022] Figure 6 yes Figure 2 Sectional view at point BB.
[0023] Figure 7 yes Figure 2 Sectional view at point CC.
[0024] Figure 8 yes Figure 2 Sectional view at point DD.
[0025] Figure 9 This is a schematic diagram of the light principle at one angle provided in the application embodiment.
[0026] Figure 10 This is a schematic diagram of the light principle from another angle provided in the application embodiment.
[0027] In the picture:
[0028] 10. Lens; 11. Light-emitting surface; 111. Second diffusion arc segment; 12. First light-incident surface; 121. First diffusion arc segment; 122. Converging arc segment; 13. Second light-incident surface; 131. Refractive line segment; 132. Third diffusion arc segment; 14. Reflecting surface; 141. Reflecting line segment; 142. Fourth diffusion arc segment; 15. Clearance plane;
[0029] 20. Light source;
[0030] 30. Converging cavity;
[0031] α, symmetry reference plane; η, first reference plane; λ, second reference plane; γ, third reference plane; δ, fourth reference plane; X, preset direction. Detailed Implementation
[0032] 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.
[0033] 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.
[0034] The optical module and vehicle lights in this application will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] In existing technologies, the width of the lighting is limited by factors such as vehicle size, and the width of the lighting cannot meet the usage requirements, which is detrimental to driving safety.
[0036] This application provides an optical module including a lens and a light source. The lens has an emitting surface and a first incident surface that are disposed opposite to each other. The light source is disposed on the side of the lens away from the emitting surface. The first incident surface is configured to be symmetrically arranged on both sides of a symmetrical reference plane. A first reference plane parallel to the symmetrical reference plane is used as a cross section to cross the first incident surface to obtain a first diffusion arc segment. The first diffusion arc segment protrudes toward the side away from the light source.
[0037] The first diffusion arc protrudes towards the side furthest from the light source. After passing through this first diffusion arc, the light is laterally diffused to different locations on the light-emitting surface, and then emitted after passing through the light-emitting surface, effectively increasing the lateral illumination width and providing a wider illumination range. This will be explained in detail below.
[0038] See Figure 1 , Figure 2 , Figure 6 and Figure 10 In one embodiment, the optical module includes a lens 10 and a light source 20. The lens 10 has an emitting surface 11 and a first incident surface 12 disposed opposite to each other. The light source 20 is disposed on the side of the lens 10 away from the emitting surface 11. The first incident surface 12 is configured to be symmetrically arranged on both sides of a symmetrical reference plane. The first incident surface 12 is transversely cut by a first reference plane parallel to the symmetrical reference plane to obtain a first diffusion arc segment 121. The first diffusion arc segment 121 protrudes toward the side away from the light source 20.
[0039] For ease of explanation, the horizontal and vertical directions mentioned in the following embodiments are all in terms of... Figure 2 Based on perspective.
[0040] The first diffusion arc segment 121 protrudes towards the side away from the light source 20. After passing through the first diffusion arc segment 121, the light is laterally diffused to different locations on the light-emitting surface 11, and then emitted after passing through the light-emitting surface 11, effectively increasing the lateral illumination width and providing a wider illumination range. In this embodiment, the headlight including this optical module is installed at the rear of the vehicle. When in use, it can illuminate a greater distance to the left and right (the extension direction of the axle) of the vehicle, effectively improving driving safety.
[0041] In this embodiment, the first light-incident surface 12 is arranged symmetrically in the longitudinal direction, which can ensure the uniformity of the irradiation direction in the longitudinal direction and effectively improve the lighting effect.
[0042] In some embodiments, the aforementioned headlights can also be positioned in other locations on the vehicle, such as on the side of the vehicle, to illuminate the space near the vehicle body and provide a wide range of illumination in front of and behind the vehicle, which is beneficial for safety when getting in and out of the vehicle at night; in some embodiments, the optical module can also be applied to other places to broaden the lateral illumination width, and is not limited thereto.
[0043] It should be noted that in this embodiment, the first diffusion arc segment 121 is a circular arc segment, which is beneficial to the uniformity of illumination; in some embodiments, it can also be an elliptical arc segment, etc., and the design of different arc segments is based on the desired light pattern, and is not limited to this. The symmetrical reference plane is... Figure 2 As shown in the mid-plane α, the first reference plane is Figure 2 As shown in the middle surface η.
[0044] See Figure 1 , Figure 6 and Figure 10 In one embodiment, a light surface 11 is cut out by taking the first reference plane as the cross section to obtain a second diffusion arc segment 111, which protrudes toward the side away from the light source 20.
[0045] The second diffusion arc 111 can diffuse the light that has been diffused by the first light-incident surface 12 again, further increasing the lateral illumination width and improving the lighting effect.
[0046] It should be noted that in this embodiment, the second diffusion arc segment 111 is a circular arc segment, which is beneficial to the uniformity of illumination; in some embodiments, it can also be an elliptical arc segment, etc. The design of different arc segments is based on the required light shape, and it is not limited to this.
[0047] In some embodiments, the longitudinal cross-section of the light-emitting surface 11 can be slightly convex, slightly concave, or other arbitrary curves, selected according to the lighting design requirements, such as... Figure 3 and Figure 4 As shown.
[0048] See Figure 2 , Figure 3 and Figure 9 In one embodiment, the first diffusion arc segment 121 is an arc segment; the first light incident surface 12 is transversely cut by a second reference plane that is perpendicular to the first reference plane and radially coincides with the first diffusion arc segment 121, resulting in a converging arc segment 122, the middle of which protrudes toward the light source 20.
[0049] Longitudinal light rays, after being refracted by converging arc 122, can be converged into a near-horizontal state (e.g., Figure 9 As shown, it has a light-gathering function, which allows the lens 10 to collect light more effectively in the longitudinal direction, effectively improving the brightness of the light and making the light emission fuller, which is conducive to improving driving safety.
[0050] It should be noted that the second reference plane is as follows: Figure 2 As shown in the mid-plane λ, the second reference plane is a plane that coincides with any radial direction of the first diffusion arc segment 121.
[0051] See Figure 2 , Figure 3 , Figure 4 and Figure 9 In one embodiment, the first diffusion arc segment 121 is an arc segment; the optical module has a preset direction, which is perpendicular to the symmetry reference plane; the lens 10 also has two second light-incident surfaces 13; the two second light-incident surfaces 13 are disposed at opposite ends of the first light-incident surface 12 in the preset direction; the two second light-incident surfaces 13 are respectively transversely cut by a second reference plane that is perpendicular to the first reference plane and radially coincides with the first diffusion arc segment 121, resulting in two refractive line segments 131; the two refractive line segments 131 are not parallel, and in the preset direction, the distance between the two refractive line segments 131 gradually decreases in the direction from the light source 20 toward the lens 10.
[0052] By setting the angles of the two second light-incident surfaces 13, the first light-incident surface 12 and the two second light-incident surfaces 13 cooperate to form a converging cavity 30 with an outwardly expanding opening, the opening facing the light source 20. The converging cavity 30 can receive more light emitted from the light source 20, thereby enhancing the illumination intensity emitted from the light-emitting surface 11. In this embodiment, the two refracting segments 131 are symmetrically arranged, which effectively improves the uniformity of longitudinal illumination.
[0053] It should be noted that the preset direction is as follows: Figure 2 The direction is X in the middle.
[0054] See Figure 2 , Figure 7 and Figure 10 In one embodiment, the second light-incident surface 13 is transversely cut by a third reference plane parallel to the symmetry reference plane to obtain a third diffusion arc segment 132, which protrudes toward the side away from the light source 20.
[0055] The light rays illuminating the second incident surface 13 can be diffused laterally, effectively increasing the illumination width; the illumination at any point in the longitudinal direction is diffused laterally (through the first diffusion arc 121 and the two third diffusion arcs 132 respectively), effectively improving the uniformity of the illumination.
[0056] It should be noted that the third reference plane is as follows: Figure 2 As shown in the mid-surface γ.
[0057] See Figure 2 , Figure 3 and Figure 9 In one embodiment, the lens 10 further has two reflecting surfaces 14, which are disposed at both ends of the lens 10 in a preset direction. The two reflecting surfaces 14 are respectively transversely cut by the second reference plane to obtain two reflecting line segments 141. The two reflecting line segments 141 are not parallel, and in the preset direction, the distance between the two reflecting line segments 141 gradually increases in the direction from the light source 20 toward the lens 10.
[0058] By setting the angles of the two reflective surfaces 14, the longitudinal light rays incident from the second light-incident surface 13 are nearly horizontal after total internal reflection by the reflective surface 14, which concentrates the light, effectively improves the brightness, makes the light emission fuller, and is conducive to improving driving safety.
[0059] See Figure 2 , Figure 8 and Figure 10 In one embodiment, the fourth reference plane parallel to the symmetry reference plane is used as the cross section to cross the reflecting surface 14, resulting in a fourth diffusion arc segment 142; the fourth diffusion arc segment 142 protrudes toward the side away from the light source 20.
[0060] Light rays incident through the second incident surface 13 illuminate the reflecting surface 14 and diffuse laterally, effectively increasing the illumination width; light rays at any point in the longitudinal direction are diffused laterally.
[0061] It should be noted that the fourth reference plane is as follows: Figure 2 As shown in the mid-surface δ.
[0062] See Figure 10 In one embodiment, the first diffusion arc segment 121 is a circular arc segment, and the central angle corresponding to the first diffusion arc segment 121 is β, which satisfies: 145°≤β≤160°, such as 145°, 150°, 155°, 160°, etc.
[0063] In this embodiment, when the value of β is greater than 160°, the first diffusion arc segment 121 approaches a semicircle, which does not significantly improve the illumination width, wastes production materials, and increases the cost of use; when the value of β is less than 145°, the first diffusion arc segment 121 approaches a quarter-circle arc, resulting in a smaller illumination width; in summary, when 145°≤β≤160°, both a wider illumination width can be guaranteed, and production costs can be reduced.
[0064] It should be noted that in some embodiments, the value of β can also be less than 145°, depending on the required luminous width and determined according to the lighting design requirements, and is not limited to this.
[0065] See Figure 1 and Figure 2 The lens 10 has a clearance plane 15 on the side facing the light source 20; the first light-incident surface 12 and the two second light-incident surfaces 13 are connected to each other to form a converging cavity 30 with an opening facing the light source 20, and the clearance plane 15 is set on the periphery of the opening of the converging cavity 30.
[0066] This avoids interference with other components during installation, improving the assembly effect; and when the lens 10 needs to be placed, the clearance plane 15 can ensure that the lens 10 is placed stably.
[0067] It should be noted that in this embodiment, the avoidance plane 15 is not a complete plane, such as... Figure 1 As shown, the distance from the plane to the light-emitting surface 11 can be adjusted according to assembly requirements.
[0068] On the other hand, this application also relates to a vehicle light, including any of the aforementioned optical modules.
[0069] The technical solution provided in this application aims to improve the lateral illumination width and provide a wider illumination range by having the first diffusion arc segment 121 protrude toward the side away from the light source 20. After passing through the first diffusion arc segment 121, the light is diffused laterally to different places in the lateral direction of the light-emitting surface 11, and then emitted after passing through the light-emitting surface 11.
[0070] 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.
[0071] 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.
[0072] 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 in that, include: The lens has an exit surface and a first incident surface that are arranged opposite to each other; as well as The light source is located on the side of the lens opposite to the light-emitting surface; The first light-incident surface is configured to be symmetrically arranged on both sides of the symmetrical reference plane, and the first light-incident surface is transversely cut by a first reference plane parallel to the symmetrical reference plane to obtain a first diffusion arc segment, which protrudes toward the side away from the light source.
2. The optical module as described in claim 1, characterized in that, The light-emitting surface is transversely cut across the first reference plane to obtain a second diffusion arc segment, which protrudes toward the side away from the light source.
3. The optical module as described in claim 1, characterized in that, The first diffusion arc segment is a circular arc segment; A second reference plane, perpendicular to the first reference plane and radially coinciding with the first diffusion arc segment, is used as a cross section to cut the first incident light surface, resulting in a converging arc segment, the middle of which protrudes toward the light source.
4. The optical module as described in claim 1, characterized in that, The first diffusion arc segment is a circular arc segment; the optical module has a preset direction, which is perpendicular to the symmetry reference plane; The lens also has two second light-incident surfaces; the two second light-incident surfaces are disposed at opposite ends of the first light-incident surface in the preset direction; Two second incident surfaces are transversely intersected by a second reference plane that is perpendicular to the first reference plane and radially coincides with the first diffusion arc segment, resulting in two refracting segments. The two refracting segments are not parallel, and in the preset direction, the distance between the two refracting segments gradually decreases from the light source toward the lens.
5. The optical module as described in claim 4, characterized in that, The second incident light surface is transversely cut by a third reference plane parallel to the symmetric reference plane to obtain a third diffusion arc segment, which protrudes toward the side away from the light source.
6. The optical module as described in claim 4, characterized in that, The lens also has two reflecting surfaces, which are disposed at both ends of the lens in the preset direction; The two reflective surfaces are cross-sectioned with the second reference plane to obtain two reflective line segments; the two reflective line segments are not parallel, and the distance between the two reflective line segments gradually increases in the direction from the light source toward the lens in the preset direction.
7. The optical module as described in claim 6, characterized in that, The reflecting surface is transversely cut by a fourth reference plane parallel to the symmetric reference plane to obtain a fourth diffusion arc segment; the fourth diffusion arc segment protrudes toward the side away from the light source.
8. The optical module as described in claim 1, characterized in that, The first diffusion arc segment is a circular arc segment, and the central angle corresponding to the first diffusion arc segment is β, which satisfies: 145°≤β≤160°.
9. The optical module as described in claim 5, characterized in that, The lens has a clearance plane on the side facing the light source; The first light-incident surface and the two second light-incident surfaces are connected to each other to form a converging cavity with an opening facing the light source, and the clearance plane is disposed on the periphery of the opening of the converging cavity.
10. A vehicle light, characterized in that, Includes the optical module as described in any one of claims 1 to 9.