Optical module and vehicle lamp
By designing an optical module including a lens and a light source, and using the first diffusion arc segment to diffuse the light rays laterally, the problem of limited light illumination width in the prior art is solved, and a wider illumination range and higher driving safety are achieved.
Patent Information
- Application Number
- CN202411889517.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-02-25
AI Technical Summary
In the prior art, the width of light illumination is limited by factors such as the body size, which cannot meet the needs of different driving scenarios, which is not conducive to driving safety.
An optical module is designed, including a lens and a light source. The lens has a light exit surface and a first light entry surface. The first light entry surface is arranged symmetrically on both sides of the symmetric reference plane. The light ray is spread laterally to different places of the light exit surface through the first diffusion arc segment to achieve a wider illumination range.
Through the design of the first diffusion arc segment, the light is effectively diffused horizontally, which improves the light width and illumination range and enhances driving safety.
Smart Images
Figure CN119508757A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle lighting, and in particular to an optical module and a vehicle lamp. Background Art
[0002] With the continuous development of the automobile industry, people have higher and higher requirements for automobile lighting. In different driving scenarios, lights with different intensities and illumination ranges are required. In the prior art, the width of light illumination is limited by factors such as the size of the vehicle body, and the width of light illumination cannot meet the needs, which is not conducive to driving safety.
[0003] Therefore, it is necessary to improve the existing technology. Summary of the invention
[0004] The present application aims to solve at least one of the technical problems existing in the prior art and to provide an optical module and a vehicle light.
[0005] According to one aspect of the present application, the present application provides an optical module, including a lens and a light source, the lens having a light emitting surface and a first light incident surface relatively arranged; the light source is arranged on the side of the lens away from the light emitting surface; wherein the first light incident surface is configured to be symmetrically arranged on both sides of a symmetry reference plane, and the first light incident surface is cross-sectioned with a first reference plane parallel to the symmetry reference plane as a cross-section to obtain a first diffusion arc segment, and the first diffusion arc segment protrudes toward a side away from the light source.
[0006] In one embodiment, the light emitting surface is cut with the first reference plane as a cross section to obtain a second diffusion arc segment, and the second diffusion arc segment protrudes toward a side away from the light source.
[0007] In one embodiment, 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 cross the first light incident surface to obtain a converging arc segment, and the middle part of the converging arc segment protrudes toward the light source.
[0008] In one embodiment, 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 arranged at opposite ends of the first light incident surface in the preset direction; a second reference plane which is perpendicular to the first reference plane and coincides with the radial direction of the first diffusion arc segment is used as a cross section to cross-section the two second light incident surfaces respectively, so as to obtain two refractive line segments; the two refractive line segments are not parallel, and in the preset direction, the spacing 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 cut with a third reference plane parallel to the symmetry reference plane as a cross section to obtain a third diffusion arc segment, and the third diffusion arc segment protrudes toward a side away from the light source.
[0010] In one embodiment, the lens further has two reflective surfaces, and the two reflective surfaces are arranged at both ends of the lens in the preset direction; the two reflective surfaces are respectively cross-sectioned with the second reference plane as the cross section to obtain two reflective line segments; the two reflective line segments are not parallel, and in the preset direction, the distance between the two reflective line segments gradually increases in the direction from the light source toward the lens.
[0011] In one embodiment, the reflective surface is cross-sectioned with a fourth reference plane parallel to the symmetry reference plane as a cross section to obtain a fourth diffusion arc segment; the fourth diffusion arc segment protrudes toward a side away from the light source.
[0012] In one embodiment, the first diffusion arc segment is a circular arc segment, and the center angle corresponding to the first diffusion arc segment is β, which satisfies: 145°≤β≤160°.
[0013] In one embodiment, a side of the lens facing the light source is provided with an avoidance plane; the first light incident surface and the two second light incident surfaces are connected to each other to enclose a converging cavity with an opening facing the light source, and the avoidance plane is arranged on the peripheral side of the opening of the converging cavity.
[0014] According to another aspect of the present application, a vehicle lamp is provided, comprising any of the aforementioned optical modules.
[0015] The first diffusion arc segment of the present application protrudes toward the side away from the light source. After passing through the first diffusion arc segment, the light is laterally diffused to different places laterally of the light emitting surface, and then emitted after passing through the light emitting surface, which effectively increases the lateral illumination width and has a wider illumination range. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.
[0017] Figure 1 It is a schematic diagram of a lens provided in an embodiment of the present application.
[0018] Figure 2 yes Figure 1 main view.
[0019] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.
[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 AA.
[0022] Figure 6 yes Figure 2 Cross-sectional view at the middle BB.
[0023] Figure 7 yes Figure 2 Cross-sectional view at CC.
[0024] Figure 8 yes Figure 2 Cross-sectional view at DD in the middle.
[0025] Fig. 9 It is a principle diagram of light at an angle provided in an embodiment of the application.
[0026] Fig.10 This is a light principle diagram at another angle provided in an embodiment of the application.
[0027] In the figure:
[0028] 10. lens; 11. light emitting surface; 111. second diffusion arc segment; 12. first light incident surface; 121. first diffusion arc segment; 122. convergence arc segment; 13. second light incident surface; 131. refraction line segment; 132. third diffusion arc segment; 14. reflection surface; 141. reflection line segment; 142. fourth diffusion arc segment; 15. avoidance 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 DESCRIPTION
[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0034] The optical module and the vehicle light in the present application will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0035] In the prior art, the width of the light illumination is limited by factors such as the size of the vehicle body, and the width of the light illumination cannot meet the usage requirements, which is not conducive to driving safety.
[0036] An embodiment of the present application provides an optical module, including a lens and a light source, wherein the lens has a light emitting surface and a first light incident surface that are relatively arranged; the light source is arranged on a side of the lens away from the light emitting surface; wherein the first light incident surface is configured to be symmetrically arranged on both sides of a symmetry reference plane, and a first reference plane parallel to the symmetry reference plane is used as a cross-section to cross-section the first light incident surface to obtain a first diffusion arc segment, and the first diffusion arc segment protrudes toward a side away from the light source.
[0037] The first diffusion arc section protrudes toward the side away from the light source, and the light is diffused laterally to different places laterally of the light emitting surface after passing through the first diffusion arc section, and then emitted after passing through the light emitting surface, which effectively increases the horizontal illumination width and has a wider illumination range. The following is a detailed description.
[0038] See also Figure 1 , Figure 2 , Figure 6 and Fig.10 In one embodiment, the optical module includes a lens 10 and a light source 20, the lens 10 has a light emitting surface 11 and a first light incident surface 12 which are arranged opposite to each other; the light source 20 is arranged on a side of the lens 10 away from the light emitting surface 11; wherein the first light incident surface 12 is configured to be symmetrically arranged on both sides of a symmetry reference plane, and the first light incident surface 12 is cross-sectioned with a first reference plane parallel to the symmetry reference plane as a cross section to obtain a first diffusion arc segment 121, and the first diffusion arc segment 121 protrudes toward a side away from the light source 20.
[0039] For the convenience of explanation, the horizontal and vertical directions in the following embodiments are all Figure 2 Perspective is the standard.
[0040] The first diffusion arc section 121 protrudes toward the side away from the light source 20. After passing through the first diffusion arc section 121, the light is diffused laterally to different places laterally of the light emitting surface 11, and then emitted after passing through the light emitting surface 11, which effectively increases the lateral illumination width and has a wider illumination range. In this embodiment, the headlight including the optical module is installed at the rear of the vehicle. When in use, it can illuminate farther places to the left and right of the vehicle (in the extension direction of the axle), 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 above-mentioned headlights can also be set in other positions of the vehicle, such as on the side of the vehicle, so as to illuminate the space close to the vehicle body, and the illuminated range in the front and rear of the vehicle is wide, which is conducive to the safety of getting on and off the vehicle at night; in some embodiments, the optical module can also be applied to other places to widen the lateral illumination width, but it is not limited to this.
[0043] It should be noted that, in this embodiment, the first diffusion arc segment 121 is a circular arc segment, which is conducive to the uniformity of illumination; in some embodiments, it can also be an elliptical arc segment, etc. Different arc segments are designed according to the required light shape, and are not limited to this. The symmetry reference plane is Figure 2 As shown in the middle surface α, the first reference plane is Figure 2 As shown in the middle surface η.
[0044] See also Figure 1 , Figure 6 and Fig.10 In one embodiment, the light emitting surface 11 is cut with the first reference plane as a cross section to obtain a second diffusion arc segment 111 , and the second diffusion arc segment 111 protrudes toward a side away from the light source 20 .
[0045] The second diffusion arc segment 111 can diffuse the light diffused by the first light incident surface 12 again, further increasing the horizontal illumination width and improving the lighting effect.
[0046] It should be noted that, in the present embodiment, the second diffusion arc segment 111 is a circular arc segment, which is beneficial to the uniformity of illumination; in some embodiments, it may also be an elliptical arc segment, etc. Different arc segments are designed according to the required light shape, but are not limited to this.
[0047] In some embodiments, the longitudinal cross-section of the light emitting surface 11 may be slightly convex or slightly concave or other arbitrary curves, which may be selected according to the lighting design requirements, such as Figure 3 and Figure 4 shown.
[0048] See also Figure 2 , Figure 3 and Fig. 9 In one embodiment, the first diffusion arc segment 121 is an arc segment; a second reference plane perpendicular to the first reference plane and coinciding with the radial direction of the first diffusion arc segment 121 is used as a cross-section to cross the first light incident surface 12 to obtain a converging arc segment 122, and the middle portion of the converging arc segment 122 protrudes toward the light source 20.
[0049] The longitudinal light is refracted by the converging arc segment 122, and the longitudinal light can be converged to a nearly horizontal state (such as Fig. 9 As shown), it has the function of focusing light, so that the lens 10 can collect light more effectively in the longitudinal direction, effectively improving the brightness of the light, making the light more full, which is beneficial to improving driving safety.
[0050] It should be noted that the second reference plane is Figure 2 As shown in the middle plane λ, the second reference plane coincides with a plane in any radial direction of the first diffusion arc segment 121 .
[0051] See also Figure 2 , Figure 3 , Figure 4 and Fig. 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 arranged at opposite ends of the first light incident surface 12 in the preset direction; a second reference plane that is perpendicular to the first reference plane and coincides with the radial direction of the first diffusion arc segment 121 is used as a cross section to cross-section the two second light incident surfaces 13 respectively, and two refractive line segments 131 are obtained; the two refractive line segments 131 are not parallel, and in the preset direction, the spacing 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 enclose a convergence cavity 30 with an opening expanding outward, with the opening facing the light source 20. The convergence cavity 30 can receive more light emitted by the light source 20, thereby enhancing the light intensity emitted from the light emitting surface 11; in this embodiment, the two refractive line segments 131 are symmetrically arranged, which effectively improves the uniformity of the longitudinal illumination.
[0053] It should be noted that the preset direction is Figure 2 In the direction X.
[0054] See also Figure 2 , Figure 7 and Fig.10 In one embodiment, the second light incident surface 13 is cross-sectioned with a third reference plane parallel to the symmetry reference plane to obtain a third diffusion arc segment 132 , and the third diffusion arc segment 132 protrudes toward a side away from the light source 20 .
[0055] The light irradiated on the second light incident surface 13 can be diffused laterally, effectively improving the illumination width; the light at any point in the longitudinal direction is diffused laterally (through the first diffusion arc segment 121 and the two third diffusion arc segments 132 respectively), effectively improving the uniformity of the illumination.
[0056] It should be noted that the third reference plane is Figure 2 As shown in the middle surface γ.
[0057] See also Figure 2 , Figure 3 and Fig. 9 In one embodiment, the lens 10 further has two reflective surfaces 14, which are arranged at both ends of the lens 10 in a preset direction; the two reflective surfaces 14 are respectively cross-sectioned with the second reference plane as a cross section to obtain two reflective line segments 141; the two reflective line segments 141 are not parallel, and in the preset direction, the spacing between the two reflective 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 reflecting surfaces 14, the longitudinal light incident from the second light incident surface 13 becomes nearly horizontal after being totally reflected by the reflecting surface 14, thereby concentrating the light and effectively improving the light brightness, making the light more full, and facilitating driving safety.
[0059] See also Figure 2 , Figure 8 and Fig.10 In one embodiment, the reflective surface 14 is cross-sectioned with a fourth reference plane parallel to the symmetry reference plane as a cross section to obtain a fourth diffusion arc segment 142; the fourth diffusion arc segment 142 protrudes toward a side away from the light source 20.
[0060] The light incident through the second light incident surface 13 is irradiated on the reflecting surface 14 and can be diffused laterally, thereby effectively increasing the width of the light illumination; the light at any point in the longitudinal direction is diffused in the transverse direction.
[0061] It should be noted that the fourth reference plane is Figure 2 As shown in the middle surface δ.
[0062] See also Fig.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, satisfying: 145°≤β≤160°, for example, 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 of a circle, and the width of the illumination is smaller; in summary, when 145°≤β≤160°, it can not only ensure a wider illumination, but also reduce production costs.
[0064] It should be noted that, in some embodiments, the value of β may also be less than 145°, depending on the need for light-emitting width and the lighting design requirements, but is not limited thereto.
[0065] See also Figure 1 and Figure 2 The lens 10 is provided with an avoidance 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 enclose a converging cavity 30 with an opening facing the light source 20 , and the avoidance plane 15 is arranged on the peripheral side of the opening of the converging cavity 30 .
[0066] This avoids interference with other components during installation, thereby improving the assembly effect; and when the lens 10 needs to be placed, the avoidance 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. 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, the present application also relates to a vehicle lamp, comprising any one of the aforementioned optical modules.
[0069] The technical solution provided in the embodiment of the present application is intended to protrude through the first diffusion arc segment 121 toward 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 laterally of the light emitting surface 11, and then emitted after passing through the light emitting surface 11, thereby effectively increasing the lateral illumination width and having a wider illumination range.
[0070] In the various embodiments of the present application, if there is no special explanation and logical conflict, the terms or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. In the present application, "at least one" means one or more, and "more" means two or more.
[0071] It is understood that the various 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 size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.
[0072] The optical module and the vehicle lamp provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the present application and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present application, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. An optical module, characterized in that: include: A lens having a light emitting surface and a first light incident surface arranged opposite to each other; as well as A light source is arranged on a side of the lens away from the light emitting surface; Among them, the first light incident surface is configured to be symmetrically arranged on both sides of the symmetry reference plane, and the first light incident surface is cross-sectioned with a first reference plane parallel to the symmetry reference plane to obtain a first diffusion arc segment, and the first diffusion arc segment protrudes toward the side away from the light source.
2. The optical module according to claim 1, wherein: The light emitting surface is cut with the first reference plane as a cross section to obtain a second diffusion arc segment, and the second diffusion arc segment protrudes toward a side away from the light source.
3. The optical module according to claim 1, wherein: The first diffusion arc segment is a circular arc segment; The first light incident surface is cross-sectioned with a second reference plane perpendicular to the first reference plane and coinciding with the radial direction of the first diffusion arc segment to obtain a convergence arc segment, wherein the middle portion of the convergence arc segment protrudes toward the light source.
4. The optical module according to claim 1, wherein: The first diffusion arc segment is a circular arc segment; the optical module has a preset direction, and the preset direction is perpendicular to the symmetry reference plane; The lens further has two second light incident surfaces; the two second light incident surfaces are arranged at two opposite ends of the first light incident surface in the preset direction; A second reference plane perpendicular to the first reference plane and radially coincident with the first diffusion arc segment is used as a cross section to cross-section the two second light incident surfaces respectively, to obtain two refractive line segments; the two refractive line segments are not parallel, and in the preset direction, the spacing between the two refractive line segments gradually decreases in the direction from the light source toward the lens.
5. The optical module according to claim 4, wherein: The second light incident surface is cut by taking a third reference plane parallel to the symmetry reference plane as a cross section to obtain a third diffusion arc segment, and the third diffusion arc segment protrudes toward a side away from the light source.
6. The optical module according to claim 4, wherein: The lens also has two reflective surfaces, which are arranged at two ends of the lens in the preset direction; The two reflective surfaces are respectively cross-sectioned with the second reference plane to obtain two reflective line segments; the two reflective line segments are not parallel, and in the preset direction, the distance between the two reflective line segments gradually increases in the direction from the light source toward the lens.
7. The optical module according to claim 6, wherein: The reflective surface is cross-sectioned with a fourth reference plane parallel to the symmetry reference plane as a cross section to obtain a fourth diffusion arc segment; the fourth diffusion arc segment protrudes toward a side away from the light source.
8. The optical module according to claim 1, wherein: The first diffusion arc segment is a circular arc segment, and the center angle corresponding to the first diffusion arc segment is β, which satisfies: 145°≤β≤160°.
9. The optical module according to claim 5, wherein: A side of the lens facing the light source is provided with an avoidance plane; The first light incident surface and the two second light incident surfaces are connected to each other to enclose a focusing cavity with an opening facing the light source, and the avoidance plane is arranged on the peripheral side of the opening of the focusing cavity.
10. A vehicle lamp, characterized in that: Comprising the optical module as claimed in any one of claims 1 to 9.