Low-beam lamp module, lighting equipment and vehicle
By designing the low-beam module with a spherical lens group, the problem of large size and dispersion of vehicle low-beam lights is solved, the module size is reduced and chromatic aberration correction is achieved, and the lighting effect is improved.
Patent Information
- Application Number
- CN202323663745.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-29
AI Technical Summary
It is difficult for existing vehicles to solve the problems of large size and dispersion at the same time.
A low-beam module is designed, which includes a light source and a lens group. The lens group is composed of at least three spherical lenses. The spherical lenses are distributed along the length of the vehicle. The light from the light source is projected to the front of the vehicle through the lens group. This design uses better refraction angles and multiple spherical lenses to correct the red and blue bands, effectively reducing module size and correcting chromatic aberration.
The size reduction and chromatic aberration correction of the low beam module are achieved, which improves the lighting effect and the illumination quality in front of the vehicle.
Smart Images
Figure CN222352135U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle technology, and more specifically, to a low beam lamp module, a lighting device and a vehicle. Background Art
[0002] At present, the low beam headlight of a vehicle has the characteristics of a large irradiation range and a short irradiation distance. However, in the related art, it is difficult for the low beam headlight to solve the problems of large size and dispersion at the same time. Utility Model Content
[0003] Embodiments of the present application provide a low beam lamp module, a lighting device and a vehicle.
[0004] The low beam lamp module of the embodiment of the present application is used for a vehicle, and the low beam lamp module includes a light source and a lens group. The lens group includes at least three spherical lenses. A plurality of the spherical lenses are distributed along the length direction of the vehicle. The light emitted by the light source is projected to the front of the vehicle through the lens group.
[0005] In the low beam module of the embodiment of the present application, the low beam module is used for a vehicle, and the low beam module includes a light source and a lens group, and the lens group includes at least three spherical lenses, and the multiple spherical lenses are distributed along the length direction of the vehicle, and the light emitted by the light source is projected to the front of the vehicle through the lens group. In this way, the lens group includes at least three spherical lenses, and the spherical lenses have a better refraction angle, so that the entire lens group can be closer to the light source position, effectively reducing the size of the projection lens of the low beam module, and at the same time, the multiple spherical lenses can compensate for the mutual correction of the red and blue bands, effectively correcting the chromatic aberration problem.
[0006] In certain embodiments, the plurality of spherical lenses are respectively made of different plastics or glasses.
[0007] In this way, different spherical lenses can be made of different materials, and spherical lenses of different materials can compensate for the mutual correction of the red and blue bands, thereby effectively correcting chromatic aberration.
[0008] In some embodiments, the lens assembly includes a light inlet and a light outlet disposed opposite to each other, the light inlet is aligned with the light source, and the light outlet is configured to emit light.
[0009] In this way, multiple spherical lenses are arranged along a certain direction to form the lens group of the present application. The light inlet of the lens group can receive light from the light source, which is then refracted between the multiple spherical lenses, and finally a complete illumination spot is emitted from the light outlet.
[0010] In some embodiments, the diameter of the light outlet is less than or equal to 10 mm.
[0011] In this way, the lens group can be set closer to the light source, and the diameter of the light outlet can be reduced while ensuring the light irradiation angle. The light outlet of the lens group in the present application can be less than 10 mm, which greatly reduces the size.
[0012] In certain embodiments, the plurality of spherical lenses include at least one concave mirror and at least two convex mirrors.
[0013] In this way, at least one concave mirror and at least two convex mirrors can ensure that the light entering the lens group is focused in front of the vehicle.
[0014] In some embodiments, the low beam lamp module further includes a reflector, the light emitted by the light source is directed toward the reflector, and the reflector reflects the light to the lens group.
[0015] In this way, the light source can be arranged below the reflector, and the light emitted by the light source can be reflected to the lens group through the reflector. The reflector can convert the original point light source into a light spot to better illuminate the front of the vehicle.
[0016] In some embodiments, the low beam lamp module further includes a light blocking member, which is disposed between the reflector and the lens group. The reflector reflects light to the light blocking member, and the light blocking member is configured to block a portion of the light spot gathered by the reflector.
[0017] In this way, the light blocking member can block part of the light spot gathered by the reflective member, so that the light spot passing through the lens group can present a desired shape, thereby better illuminating the front of the vehicle.
[0018] In certain embodiments, the light source is an LED light source.
[0019] In this way, the LED light source has a longer service life and can be made smaller in size, thereby reducing the size of the entire low beam module.
[0020] The lighting device of the embodiment of the present application includes the low beam lamp module described in any one of the above embodiments.
[0021] The vehicle of the embodiment of the present application includes the low beam lamp module described in any one of the above embodiments or the low beam lamp module described in the above embodiments.
[0022] In the low beam module, lighting equipment and vehicle of the embodiment of the present application, the low beam module is used for the vehicle, and the low beam module includes a light source and a lens group, and the lens group includes at least three spherical lenses, and the multiple spherical lenses are distributed along the length direction of the vehicle, and the light emitted by the light source is projected to the front of the vehicle through the lens group. In this way, the lens group includes at least three spherical lenses, and the spherical lenses have a better refraction angle, so that the entire lens group can be closer to the light source position, effectively reducing the size of the projection lens of the low beam module, and at the same time, the multiple spherical lenses can compensate for the mutual correction of the red and blue bands, effectively correcting the chromatic aberration problem.
[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0025] Figure 1 is a schematic structural diagram of a low beam lamp module according to an embodiment of the present application;
[0026] Figure 2 is another structural schematic diagram of the low beam lamp module according to the implementation mode of the present application;
[0027] Figure 3 is a schematic diagram of a module of a lighting device according to an embodiment of the present application;
[0028] Figure 4 It is a schematic diagram of the structure of a vehicle according to an embodiment of the present application.
[0029] Description of main component symbols:
[0030] Low beam module 100;
[0031] Light source 1, reflector 2, reflective cavity 21, light input end 22, light output end 23, light blocking element 3, lens group 4, light input port 41, light output port 42, spherical lens 43, lighting device 200, and vehicle 300. DETAILED DESCRIPTION
[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0033] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0034] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the various specific processes and examples of materials provided in the present application, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.
[0035] See also Figure 1 and Figure 2 The low beam lamp module 100 of the embodiment of the present application is used for a vehicle 300. The low beam lamp module 100 includes a light source 1 and a lens group 4. The lens group 4 includes at least three spherical lenses 43. The multiple spherical lenses 43 are distributed along the length direction of the vehicle 300. The light emitted by the light source 1 is projected to the front of the vehicle 300 through the lens group 4.
[0036] In the low beam lamp module 100 of the embodiment of the present application, the low beam lamp module 100 is used for the vehicle 300, and the low beam lamp module 100 includes a light source 1 and a lens group 4, and the lens group 4 includes at least three spherical lenses 43, and the multiple spherical lenses 43 are distributed along the length direction of the vehicle 300, and the light emitted by the light source 1 is projected to the front of the vehicle 300 through the lens group 4. In this way, the lens group 4 includes at least three spherical lenses 43, and the spherical lenses 43 have a better refraction angle, so that the entire lens group 4 can be closer to the light source 1, effectively reducing the size of the projection lens of the low beam lamp module 100, and at the same time, the multiple spherical lenses 43 can compensate for the mutual correction of the red and blue bands, and effectively correct the chromatic aberration problem.
[0037] For further information, see Figure 1 and Figure 2 In some embodiments, the plurality of spherical lenses 43 are respectively made of different plastics or glasses.
[0038] In this way, different spherical lenses 43 can be made of different materials, and spherical lenses 43 made of different materials can compensate for the mutual correction of red and blue bands, thereby effectively correcting chromatic aberration.
[0039] Specifically, since a single or two spherical lenses 43 cannot effectively calibrate chromatic aberration, the lens group 4 of the present application may include three or more spherical lenses 43, and different spherical lenses 43 may be made of different materials, so that spherical lenses 43 of different materials can compensate for each other in the red and blue bands, effectively correcting the chromatic aberration problem. Preferably, the lens group 4 may include three to six spherical lenses 43, which can reduce costs while ensuring the elimination of light spots, and reduce the size of the lens group 4.
[0040] In the embodiment of the present application, the specific material of the spherical lens 43 is not limited, and the material of the spherical lens 43 can be a variety of plastic materials, or glass containing flint crown material. In addition, in the embodiment of the present application, the spherical curvature of the spherical lens 43 and the arrangement of different spherical lenses 43 are not limited to meet various needs.
[0041] Exemplarily, the lens group 4 can be composed of a variety of flint crown glasses. Due to the mutual compensation of the red and blue bands in the material, the chromatic aberration can be effectively corrected to project a relatively pure white light. Under the same field of view and the same 25-meter projection spot distance, the blue-yellow edge size of the lens group 4 of the present application is theoretically 2.5 mm, which is only one-tenth of the traditional aspheric lens 43, and the lighting effect is better. In this way, the lens group 4 is greatly reduced in size, while avoiding the problem that the single-piece projection aspheric lens 43 cannot correct the chromatic aberration, resulting in the light spot having a more serious blue-yellow and other color edges.
[0042] See also Figure 1 and Figure 2 In some embodiments, the lens group 4 includes a light inlet 41 and a light outlet 42 that are arranged opposite to each other, the light inlet 41 is aligned with the light source 1, and the light outlet 42 is configured to emit light.
[0043] In this way, multiple spherical lenses 43 are arranged along a certain direction to form the lens group 4 of the present application. The light inlet 41 of the lens group 4 can receive light from the light source 1, and then refract it between the multiple spherical lenses 43, and finally emit a complete illumination spot at the light outlet 42.
[0044] See also Figure 1 and Figure 2 In some embodiments, the diameter of the light outlet 42 is less than or equal to 10 mm. For example, the diameter of the light outlet 42 can be 10 mm, 9.5 mm, 9 mm, 8.5 mm, 8 mm, 7.5 mm, 7 mm, 6.5 mm, 6 mm, 5.5 mm, or 5 mm.
[0045] In this way, the lens group 4 can be set closer to the light source 1, and the diameter of the light outlet 42 can be reduced while ensuring the light irradiation angle. In the present application, the light outlet 42 of the lens group 4 can be less than 10 mm, which greatly reduces the size.
[0046] For example, the diameter of the light outlet 42 can be 8 mm. The present application effectively reduces the size of the projection lens of the low beam module 100 by using the lens group 4, while maintaining a high light output efficiency. Compared with the size of the light outlet 42 of the traditional low beam projection lens of more than 20 mm, the size is significantly reduced. At the same time, when the diameter of the light outlet 42 of the lens group 4 is small, it is conducive to the shape design, increasing the degree of freedom of the shape design of the low beam module 100.
[0047] See also Figure 1 and Figure 2 In some embodiments, the plurality of spherical lenses 43 include at least one concave mirror and at least two convex mirrors.
[0048] In this way, at least one concave mirror and at least two convex mirrors can ensure that the light entering the lens group 4 is focused in front of the vehicle 300 .
[0049] See also Figure 1 and Figure 2 In some embodiments, the low beam lamp module 100 further includes a reflector 2 , and the light emitted by the light source 1 is directed toward the reflector 2 , and the reflector 2 reflects the light to the lens group 4 .
[0050] In this way, the light source 1 can be set below the reflector 2, and the light emitted by the light source 1 can be reflected to the lens group 4 by the reflector 2. The reflector 2 can convert the original point light source 1 into a light spot to better illuminate the front of the vehicle 300.
[0051] See also Figure 1 and Figure 2 In some embodiments, the low beam lamp module 100 further includes a light blocking member 3, which is disposed between the reflector 2 and the lens group 4. The reflector 2 reflects the light to the light blocking member 3, and the light blocking member 3 is configured to block part of the light spot converged by the reflector 2.
[0052] In this way, the light blocking member 3 can block part of the light spot gathered by the reflective member 2 , so that the light spot passing through the lens group 4 can present a desired shape, thereby better illuminating the front of the vehicle 300 .
[0053] In some embodiments, the reflector 2 further forms a reflective cavity 21 , which includes a light input end 22 and a light output end 23 . The light source 1 is disposed at the light input end 22 , and the light blocking member 3 is disposed at the light output end 23 .
[0054] In this way, the light emitted by the light source 1 can be reflected to the light output end 23 through the reflective cavity 21, and the light blocking member 3 can block part of the light, so that the final irradiated light spot can present the shape of a cutoff line. A focus of the lens group 4 is located on the surface where the light blocking member 3 is located. In this way, the light emitted from the lens group 4 can be evenly distributed, so that a clear light spot can be obtained at a distance of 25 meters.
[0055] Specifically, the cut-off line position that meets the regulatory requirements can be calculated based on the optical parameters of the reflector 2 and the lens group 4. The cut-off line structure blocks part of the light spot gathered by the reflector 2. When the light spot gathered at the cut-off line is projected by the projection lens group 4 and hits the projection plane, the shape of the cut-off line will appear. The cut-off line structure is related to the focal length f of the lens group 4. The size of the light blocking member 3 is inferred from the cut-off line height specified by the regulations and the focal length of the lens group 4.
[0056] See also Figure 1 and Figure 2 In some embodiments, the light source 1 is an LED light source.
[0057] In this way, the LED light source has a longer service life and can be made smaller in size, thereby reducing the size of the entire low beam lamp module 100 .
[0058] Specifically, in the embodiment of the present application, the low beam lamp module 100 includes an LED light source, a reflector 2, a light blocking member 3 and a lens group 4. In order to improve the efficiency of light emission, the reflector 2 can be a reflective bowl, and the reflective bowl forms a reflective cavity 21. The light inlet end 22 and the light outlet end 23 of the reflective cavity 21 are respectively arranged at the lower side and the front side of the reflector 2. At the same time, the light source 1 can be arranged at the light inlet end 22 of the reflective cavity 21, that is, the lower side of the reflector 2, and the light blocking member 3 can be arranged at the light outlet end 23 of the reflective cavity 21, that is, the front side of the reflector 2.
[0059] In the implementation mode of the present application, the type of light source 1 is not limited to meet different needs. For example, light source 1 can be an LED white light source, or a laser light source that is processed to emit white light. The light emitting surface of light source 1 should be small and the light energy density should be large. The light emitting surface of light source 1 is placed at the focus of the reflective bowl to achieve convergence at another focus.
[0060] In addition, the reflective bowl can be an ellipsoid or a free-form surface, which can achieve that when the light source 1 is placed at one of its focuses, the light beam emitted by the light source 1 can converge at another focus. At the same time, after the reflective bowl is designed, the reflective bowl surface can be sliced. The number of slices is not limited, but each slice can be combined into a complete reflective bowl shape. In this way, in actual application, each slice will make some lateral and longitudinal movements and rotations, and the moving distance and rotation angle will adjust the light spot required. The reflective bowl can also be replaced by a free-form surface lens. The change in the light field distribution of the light source 1 caused by the free-form surface lens needs to be the same as the change in the reflective bowl.
[0061] It should be noted that the multiple of the reflector 2 to the light source 1 at the cut-off line is approximately M=(af 0 ) / (a+f 0 ), where a is the major axis length of the ellipse, and f 0 is the focal length of the ellipse 2f 0 One half of .
[0062] Specifically, the position of the light blocking member 3 is the cut-off line. After the light spot formed by the light source 1 reflected by the reflector 2 passes through the light blocking member 3, the lens group 4 can project the light spot at the cut-off line to a distance while keeping the light field distribution of the light spot unchanged. The divergence angle half angle α of the light spot at the cut-off line of the lens group 4 is Tanα=M*s / f, where M is the multiple of the reflector 2 to the light source 1 at the cut-off line, s is the lateral size of the light emitting surface of the light source 1, and f is the focal length of the lens group 4.
[0063] Furthermore, the light emitted from the light-emitting surface of the light source 1 is converged at the light-blocking member 3 through the reflector 2, and the converged light spot is expanded in the lateral direction, and its expansion width is approximately the ratio of the distance from the light-blocking member 3 to the vertex of the reflector 2 to the distance from the light source 1 to the vertex of the reflector 2 multiplied by the lateral structure of the light-emitting surface of the light source 1. The focal length of the projection lens group 4 can be calculated based on the size of the converged light spot and the low beam divergence angle required by the regulations, so that the lens group 4 with this focal length can be designed.
[0064] The lens group 4 of the embodiment of the present application is composed of a plurality of spherical lenses 43, which can optimize a better imaging effect, correct various aberrations, and thus project a clearer cutoff line. And due to the overall improvement of aberrations, chromatic aberration is also very well corrected, solving the problem of blue-yellow edge defects of the light spot of the traditional lamp module. Since the lens of the lens group 4 can be close to the light spot at the cutoff line, a larger numerical aperture can be achieved for the light spot, so a larger light extraction efficiency can be maintained. At the same time, since multiple spherical lenses 43 correct the light together, the divergence of the light in the light path can be compressed by the spherical lens 43, a smaller light extraction aperture can be achieved, and a compact structure can be achieved.
[0065] See also Figure 3The lighting device 200 of the embodiment of the present application includes the low beam lamp module 100 of any one of the above embodiments.
[0066] See also Figure 4 The vehicle 300 of the embodiment of the present application includes the low beam lamp module 100 of any one of the above embodiments or the low beam lamp module 100 of the above embodiments.
[0067] In the low beam module 100, the lighting device 200 and the vehicle 300 of the embodiment of the present application, the low beam module 100 is used for the vehicle 300, and the low beam module 100 includes a light source 1 and a lens group 4, the lens group 4 includes at least three spherical lenses 43, and the multiple spherical lenses 43 are distributed along the length direction of the vehicle 300, and the light emitted by the light source 1 is projected to the front of the vehicle 300 through the lens group 4. In this way, the lens group 4 includes at least three spherical lenses 43, and the spherical lenses 43 have a better refraction angle, so that the entire lens group 4 can be closer to the position of the light source 1, effectively reducing the size of the projection lens of the low beam module 100, and at the same time, the multiple spherical lenses 43 can compensate for the mutual correction of the red and blue bands, and effectively correct the chromatic aberration problem.
[0068] In the implementation manner of the present application, the specific type of the vehicle 300 is not limited. The vehicle 300 can be an electric vehicle or a hybrid vehicle to meet different needs.
[0069] In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0071] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.
Claims
1. A low beam lamp module for a vehicle, characterized in that: The low beam lamp module includes a light source and a lens group, the lens group includes at least three spherical lenses, and a plurality of the spherical lenses are distributed along the length direction of the vehicle. The light emitted by the light source is projected to the front of the vehicle through the lens group.
2. The low beam lamp module according to claim 1, characterized in that: The plurality of spherical lenses are respectively made of different plastics or glasses.
3. The low beam lamp module according to claim 1, characterized in that: The lens group comprises a light inlet and a light outlet which are arranged in opposite directions, the light inlet is aligned with the light source, and the light outlet is configured to emit light.
4. The low beam lamp module according to claim 3, characterized in that: The diameter of the light outlet is less than or equal to 10 mm.
5. The low beam lamp module according to claim 1, characterized in that: The plurality of spherical lenses include at least one concave mirror and at least two convex mirrors.
6. The low beam lamp module according to claim 1, characterized in that: The low beam lamp module also includes a reflector, the light emitted by the light source is directed toward the reflector, and the reflector reflects the light to the lens group.
7. The low beam lamp module according to claim 6, characterized in that: The low beam lamp module also includes a light blocking member, which is arranged between the reflector and the lens group. The reflector reflects light to the light blocking member, and the light blocking member is configured to block part of the light spot gathered by the reflector.
8. The low beam lamp module according to claim 1, characterized in that: The light source is an LED light source.
9. A lighting device, characterized in that: A low beam lamp module comprising any one of claims 1 to 8.
10. A vehicle, characterized in that: It comprises the low beam lamp module according to any one of claims 1 to 8 or the lighting device according to claim 9.