Optical lens module and vehicle lights

Abstract

This application relates to the field of automotive lighting, and more particularly to an optical lens module and automotive lighting. It includes a first lens, a lens group, and a curved total internal reflection lens. The lens group includes a second lens and a third lens. The second lens is integrally formed with the first lens, and the third lens is disposed on one side of the second lens. The real focal point of the lens group is located outside the second lens. The side of the first lens facing away from the third lens includes an incident light surface and an inclined surface connected to each other. The curved total internal reflection lens is disposed below the inclined surface, and the side of the curved total internal reflection lens facing away from the inclined surface is convex. Light emitted from an external light source can enter through the incident light surface, be reflected by the curved total internal reflection lens, and then reflected again by the inclined surface. The lens group can project the light reflected by the inclined surface into parallel light. The optical lens module according to this application solves the problems of existing high and low beam lens modules being long and bulky along the vehicle body axis, and having poor low beam cutoff line color and severe chromatic aberration.

Description

Technical Field

[0001] This application relates to the field of automotive lighting, and in particular to an optical lens module and an automotive lighting system. Background Technology

[0002] With the development of automotive lighting technology, high and low beam headlight lens modules are becoming increasingly popular.

[0003] However, the traditional "condenser + single-focus lens" solution for low beam modules is usually long and bulky in the direction of the vehicle body axis, and requires a low beam cut-off line baffle. In addition, the low beam cut-off line of the traditional solution has poor color and serious dispersion. Summary of the Invention

[0004] The purpose of this application is to provide an optical lens module and a vehicle lamp, thereby solving the problems of existing high and low beam lens modules being long and bulky in the axial direction of the vehicle body, and having poor color of the low beam cutoff line and severe dispersion.

[0005] According to a first aspect of this application, an optical lens module is provided, including a first lens, a lens group, and a curved total internal reflection lens. The lens group includes a second lens and a third lens. The second lens is integrally formed with the first lens, and the third lens is disposed on one side of the second lens. The real focal point of the lens group is located outside the second lens. The side of the first lens facing away from the third lens includes an incident light surface and an inclined surface connected to each other. The curved total internal reflection lens is disposed below the inclined surface. The side of the curved total internal reflection lens facing away from the inclined surface is convex. Light emitted from an external light source can enter through the incident light surface, be reflected by the curved total internal reflection lens, and then be reflected by the inclined surface. The lens group can project the light reflected by the inclined surface into parallel light.

[0006] In any of the above technical solutions, the optical lens module further includes multiple curved total internal reflection lenses. The side of the second lens facing the third lens includes multiple protrusions. The convex surface of any of the protrusions is convex along the optical axis. The multiple protrusions correspond one-to-one with the multiple curved total internal reflection lenses. The light emitted by the external light source can enter through the light-incident surface, be reflected by the corresponding curved total internal reflection lens, and then be reflected by the inclined surface. The optical axis direction is perpendicular to the first direction. When observed along the optical axis direction, the light reflected by the inclined surface remains parallel in the first direction after passing through the corresponding protrusion.

[0007] In any of the above technical solutions, further, the side of the third lens facing the second lens is concave along the optical axis. When viewed along the optical axis, the light rays projected from any of the convex portions remain parallel in the first direction after passing through the side of the third lens facing the second lens. The side of the third lens facing away from the second lens is convex, and the light rays projected from the side of the third lens facing the second lens and passing through the side of the third lens facing away from the second lens are parallel light rays.

[0008] In any of the above technical solutions, the optical lens module further includes multiple curved total internal reflection lenses. The light emitted by the external light source can enter through the light-incident surface, be reflected by the curved total internal reflection lens, and then be reflected by the inclined surface. When viewed along the optical axis, the light rays that are parallel in the first direction after being reflected by the inclined surface pass through one side of the second lens facing the third lens and remain parallel in the first direction.

[0009] In any of the above technical solutions, further, the side of the third lens facing the second lens is concave along the optical axis. When viewed along the optical axis, the light rays projected from the side of the second lens facing the third lens remain parallel in the first direction after passing through the side of the third lens facing the second lens. The side of the third lens facing away from the second lens is convex, and the light rays projected from the side of the third lens facing the second lens and passing through the side of the third lens facing away from the second lens are parallel light.

[0010] In any of the above technical solutions, the first lens further includes a second inclined surface, a third inclined surface, a fourth inclined surface, and a vertical plane. The light-incident surface, the first inclined surface, the third inclined surface, the second inclined surface, and the fourth inclined surface are connected sequentially. The light-incident surface extends in the vertical direction. The first inclined surface extends toward the second lens at a first angle relative to the light-incident surface. The fourth inclined surface extends toward the first inclined surface at a second angle relative to the light-incident surface. The second inclined surface extends toward the second lens at a third angle relative to the fourth inclined surface. The third inclined surface extends away from the first inclined surface at a fourth angle relative to the second inclined surface. Any of the curved total internal reflection lenses includes two arc edges and a curved edge connected to each other. The curved edge is connected to the third inclined surface. Both arc edges are connected to the fourth inclined surface. The width of the two arc edges gradually decreases from top to bottom.

[0011] In any of the above technical solutions, the first lens further includes a vertical plane, which connects to the fourth inclined plane and is parallel to the incident light surface.

[0012] In any of the above technical solutions, the first inclined plane can mirror the curved total internal reflection lens into a virtual image, and the real focal point of the lens group is located at the edge of the virtual image.

[0013] According to a second aspect of this application, a vehicle lamp is provided, including the optical lens module described above.

[0014] In any of the above technical solutions, the vehicle light further includes multiple light sources and multiple circuit boards, with each of the multiple light sources corresponding to one of the multiple circuit boards and each of the multiple light sources corresponding to one of the multiple curved total internal reflection lenses, and the long side of any of the circuit boards extending in the vertical direction.

[0015] The optical lens module according to this application includes a first lens, a lens group, and a curved total internal reflection lens. The lens group includes a second lens and a third lens. The second lens is integrally formed with the first lens, and the third lens is disposed on one side of the second lens. The real focal point of the lens group is located outside the second lens. The side of the first lens facing away from the third lens includes an incident light surface and an inclined surface connected to each other. The curved total internal reflection lens is disposed below the inclined surface. The side of the curved total internal reflection lens facing away from the inclined surface is convex. The light emitted by the external light source of this application can enter through the incident light surface, be reflected by the curved total internal reflection lens, and then be reflected by the inclined surface. The lens group can project the light reflected by the inclined surface into parallel light. That is, the light reflected by the inclined surface can be projected into parallel light by the lens group. The optical path of this application is folded, which shortens the module length. The final optical pattern of the optical (near light) lens module provided by this application is the image of the beam reflected by the curved total internal reflection lens. The edge of the curved total internal reflection lens is the boundary line forming the cutoff line of the near light pattern. Compared with traditional lens structures, this application can form a good cutoff line color, which is close to zero dispersion.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This diagram shows an overall structural schematic of an optical lens module according to a first embodiment of the present application;

[0019] Figure 2A schematic diagram showing a structure in which a first lens and a second lens are integrally formed according to a first embodiment of this application is illustrated.

[0020] Figure 3 Show Figure 2 Another perspective illustration;

[0021] Figure 4 Show Figure 2 Side view;

[0022] Figure 5 A schematic diagram of the structure of the third lens according to the first embodiment of this application is shown;

[0023] Figure 6 This shows a side view of the optical path of an optical lens module according to a first embodiment of this application;

[0024] Figure 7 A top view of the optical path of an optical lens module according to a first embodiment of this application is shown;

[0025] Figure 8 Show Figure 2 Another angle diagram;

[0026] Figure 9 This diagram shows an overall structural schematic of an optical lens module according to a second embodiment of the present application;

[0027] Figure 10 This diagram illustrates a structure in which the first lens and the second lens are integrally formed according to a second embodiment of the present application.

[0028] Figure 11 Show Figure 10 Another perspective illustration;

[0029] Figure 12 Show Figure 10 Side view;

[0030] Figure 13 A schematic diagram of the structure of the third lens according to the second embodiment of this application is shown;

[0031] Figure 14 This shows a side view of the optical path of an optical lens module according to a second embodiment of this application;

[0032] Figure 15 A top view of the optical path of an optical lens module according to a second embodiment of this application is shown;

[0033] Figure 16 Show Figure 10 Another angle diagram;

[0034] Figure 17A side view of the main optical path of an optical lens module according to a first embodiment of this application is shown.

[0035] Icons: 100-First lens; 101-Incident surface; 102-First inclined plane; 103-Virtual surface; 104-Third inclined plane; 105-Second inclined plane; 106-Fourth inclined plane; 107-Vertical plane; 200-Second lens; 201-Convex part; 300-Third lens; 400-Virtual image; 500-Light source; 600-Light leakage flange; 700-Curved total internal reflection lens; 701-Curved edge; 702-Curved edge; 800-Real focal point; First direction X. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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 some, not all, of the embodiments of this application. The components of the embodiments of this application described and labeled in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] The first aspect of this application provides an optical lens module, thereby solving the problems of existing high and low beam lens modules having a long and large volume in the vehicle body axis direction, poor color of the low beam cutoff line, and severe dispersion.

[0044] Prior to this application, the traditional "condenser + single-focus lens" solution for low beam modules was usually long and bulky along the vehicle's axial direction, and required a low beam cut-off baffle. In addition, the low beam cut-off line of the traditional solution had poor color and severe chromatic aberration.

[0045] In view of this, according to the first aspect of this application, an optical lens module is provided, including a first lens 100, a lens group, and a curved total internal reflection lens 700. The lens group includes a second lens 200 and a third lens 300. The second lens 200 is integrally formed with the first lens 100. The third lens 300 is disposed on one side of the second lens 200. The real focal point 800 of the lens group is located outside the second lens 200. The side of the first lens 100 facing away from the third lens 300 includes an incident light surface 101 and an inclined surface connected to each other. The curved total internal reflection lens 700 is disposed below the inclined surface, and the side of the curved total internal reflection lens 700 facing away from the inclined surface is convex. The external... The light emitted by the light source 500 enters through the incident surface 101, is reflected by the curved total internal reflection lens 700, and then reflected again by an oblique surface. The lens group projects the light after the oblique surface reflection into parallel light, that is, the light after the oblique surface reflection can be projected into parallel light by the lens group. The optical path of this application is folded, which shortens the module length and reduces the module volume. Moreover, the final optical pattern of the optical (near light) lens module provided by this application is the image of the beam reflected by the curved total internal reflection lens 700. The edge of the curved total internal reflection lens 700 is the boundary line forming the cutoff line of the near light pattern. Compared with the conventional lens structure, this application can form a good cutoff line color, which is close to zero dispersion. The specific structure and optical path of the first lens 100, the lens group, and the curved total internal reflection lens 700 will be described in detail below.

[0046] In the embodiments of this application, as a first example, such as Figures 1 to 8 As shown, the optical lens module may include multiple curved total internal reflection lenses 700. The side of the second lens 200 facing the third lens 300 includes multiple protrusions 201. The convex surface of any protrusion 201 protrudes along the optical axis. Each of the multiple protrusions 201 corresponds one-to-one with a single curved total internal reflection lens 700. Figure 6 and Figure 7 As shown, the light emitted by the external light source 500 can enter through the incident surface 101, be reflected by the corresponding curved total internal reflection lens 700, and then be reflected by the inclined surface. The light rays after the inclined surface reflection pass through the corresponding convex part 201 and remain parallel in the first direction X, that is, they remain parallel in the left and right directions, but not in the up and down directions. According to the reversibility of light, any convex surface and the third lens 300 include a real focal point 800. Here, the description of a surface of the lens being convex along the optical axis means that the paraxial region of the corresponding surface is convex. Therefore, even when a surface of the lens is described as convex, the edge portion of the surface of the lens can be concave.

[0047] In addition, such as Figure 2 and Figure 3As shown, the second lens 200 also includes a connecting virtual surface (connected to the virtual surface 103 of the first lens 100) and two side surfaces located on both sides, with a curved edge formed at the connection between the edge of any convex surface and the corresponding side surface. Here, the curvature of the two curved edges can be set according to requirements.

[0048] In the embodiments of this application, such as Figures 5 to 7 As shown, the side of the third lens 300 facing the second lens 200 is concave along the optical axis. When viewed along the optical axis, the optical axis direction is perpendicular to the first direction (X). The light rays projected from any convex part 201, after passing through the side of the third lens 300 facing the second lens 200, remain parallel in the first direction X, that is, they remain parallel in the left and right directions, but not in the up and down directions. The side of the third lens 300 facing away from the second lens 200 is convex. The light rays projected from the side of the third lens 300 facing the second lens 200, after passing through the side of the third lens 300 facing away from the second lens 200, are parallel light rays.

[0049] Based on the reversibility of light, such as Figure 6 and Figure 7 As shown, the third lens 300 can converge parallel light into multiple real focal points, which are on the first focal line. When viewed along the optical axis, the light rays passing through the third lens 300 remain parallel in the first direction X (i.e., when viewed from above). The second lens 200 is disposed on one side of the third lens 300. The second lens 200 can converge the light rays passing through the third lens 300 into multiple second focal points, which are on the second focal line (i.e., the real focal points 800 of the lens group). When viewed along the optical axis, the light rays passing through the second lens 200 are not parallel in the first direction.

[0050] In this application, the third lens 300 focuses vertically, while horizontally the light rays remain parallel, meaning multiple first focal points converge on a single focal line. The second lens 200 focuses horizontally, with the focal point being the real focal point 800 (outer) of the lens group, and multiple second focal points converge on another focal line. The vertical light in this application has a longer focal length than the horizontal light (e.g., ...). Figure 6 As shown, the distance from the light source to the side of the third lens 300 opposite to the second lens 200 (i.e., the distance from the light source to the parallel light) facilitates the convergence of near and far beams vertically. The focal length of the left and right beams in this application is shorter than that of the top and bottom beams (e.g., ...). Figure 7 As shown, the distance from the light source to the side of the second lens 200 facing the third lens 300 (i.e., the distance from the light source to the horizontal parallel light) facilitates the widening of the horizontal and narrowing of the beam pattern for both near and far beams, meeting the requirements for both near and far beam patterns. Furthermore, compared to existing single-layer, single-focusing lenses, this application uses two lenses (the second lens 200 and the third lens 300) to jointly achieve focusing, resulting in a smaller overall thickness than a single-focusing lens, and consequently, a reduction in weight.

[0051] Here, the first inclined plane 102 can mirror the curved total internal reflection lens 700 into a virtual image 400. The multiple real focal points 800 (i.e. focal lines) of the lens group are located at the edge of the virtual image, i.e. near the boundary, which can form a good light pattern and the cutoff line color is good, close to no dispersion.

[0052] In the first example of this application, such as Figure 3 and Figure 4 As shown, the first lens 100 also includes a second inclined surface 105, a third inclined surface 104, a fourth inclined surface 106, and a vertical plane 107. The light-incident surface 101, the first inclined surface 102, the third inclined surface 104, the second inclined surface 105, and the fourth inclined surface 106 are connected sequentially. The light-incident surface 101 extends in the vertical direction. The first inclined surface 102 extends toward the second lens 200 at a first angle relative to the light-incident surface 101. The fourth inclined surface 106 extends toward the first inclined surface 102 at a second angle relative to the light-incident surface 101. The second inclined surface extends toward the second lens 200 at a third angle relative to the fourth inclined surface 106. The third inclined surface 104 extends away from the first inclined surface 102 at a fourth angle relative to the second inclined surface 105.

[0053] As an example, such as Figure 3 , Figure 7 and Figure 8 As shown, any curved total internal reflection lens 700 includes two interconnected arc edges 701 and curved edges 702. The curved edge 702 is connected to the third inclined surface 104, and both arc edges 701 are connected to the fourth inclined surface 106. The width of the two arc edges 701 gradually decreases from top to bottom. Furthermore, the curved total internal reflection lens 700 may also include two straight edges, either of which is connected to the second inclined surface 105 and lies between the curved edge 702 and one arc edge 701.

[0054] It is worth mentioning that the first lens 100 and the second lens 200 can be integrally formed. Here, to illustrate the lens group (the second lens 200 and the third lens 300), as shown... Figure 1 and Figure 4 As shown, the first lens 100 and the second lens 200 are separated by the virtual surface 103, which is not a real surface.

[0055] In addition, the traditional "concentrator + single-focus lens" module produces a beam of light that appears as a circular spot on the surface of the car headlight lens, a drawback that has been complained about by many manufacturers.

[0056] The curved total internal reflection lens 700 described in this application has a regular and complete structure with neat and regular edge lines. Therefore, the light spot of the headlight cover has good uniformity and good appearance, which improves customer satisfaction.

[0057] In the first example, such as Figures 1 to 4 As shown, the first lens 100 may also include a vertical plane 107, which is connected to the fourth inclined plane 106. The vertical plane 107 is parallel to the incident light surface 101, that is, the light leakage flange 600 formed by the fourth plane is used to cooperate with the fourth inclined plane 106 to reduce the generation of stray light and can project excess stray light onto the ground.

[0058] Furthermore, since the third lens 300 of this application is a non-single-focus lens, this module solution can avoid sunlight from focusing into a point or cluster, greatly reducing the risk of sunlight burning the vehicle headlight parts.

[0059] In addition, it is worth mentioning that, such as Figure 17 As shown, Figure 17 The solid line represents the light that affects the cutoff line, and the dashed line represents the main light. In other words, the center of the curved total internal reflection lens 700 affects the light below the final light pattern, and the light at the edge of the curved total internal reflection lens 700 affects the parallel light in the center of the final light pattern, thus affecting the shape of the final light pattern.

[0060] As a second example, such as Figures 9 to 16 As shown, the optical lens module may include multiple curved total internal reflection lenses 700, such as... Figure 14 and Figure 15 As shown, light emitted from the external light source 500 enters through the incident surface 101, is reflected by the curved total internal reflection lens 700, and then reflected by an oblique surface. The light rays, parallel in the first direction X after reflection by the oblique surface, remain parallel in the first direction X after passing through the side of the second lens 200 facing the third lens 300. That is, the light originally parallel in the left-right direction remains parallel in the left-right direction after passing through the side of the second lens 200 facing the third lens 300, but not in the up-down direction. Due to the reversibility of light, the side of the second lens 200 facing the third lens 300 and the third lens 300 include multiple real focal points 800.

[0061] In addition, such as Figure 10 and Figure 11 As shown, the second lens 200 also includes a connecting virtual surface (connected to the virtual surface 103 of the first lens 100) and two side surfaces located on both sides. Here, the curvature of the side of the second lens 200 facing the third lens 300 can be set as needed, which is beneficial to increasing the width of the light pattern.

[0062] In the embodiments of this application, such as Figures 13 to 15As shown, the side of the third lens 300 facing the second lens 200 is concave along the optical axis. The light rays projected from the side of the second lens 200 facing the third lens 300 remain parallel in the first direction X, that is, they remain parallel in the left and right directions, but not in the up and down directions. The side of the third lens 300 facing away from the second lens 200 is convex. The light rays projected from the side of the third lens 300 facing the second lens 200 remain parallel after passing through the side of the third lens 300 facing away from the second lens 200.

[0063] Based on the reversibility of light, such as Figure 14 and Figure 15 As shown, the third lens 300 can converge parallel light into multiple real focal points, which are located on the first focal line. When viewed along the optical axis, the light rays passing through the third lens 300 remain parallel in the first direction X (i.e., when viewed from above). The second lens 200 is disposed on one side of the third lens 300. The second lens 200 can converge the light rays passing through the third lens 300 into multiple second focal points, which are located on the second focal line (i.e., the real focal points 800 of the lens group). When viewed along the optical axis, the light rays passing through the second lens 200 remain parallel in the first direction X (i.e., when viewed from above).

[0064] That is, the third lens 300 of this application focuses only in the vertical direction, and the light rays in the horizontal direction remain parallel, that is, multiple first focal points converge on a focal line. The second lens 200 also focuses vertically, and the light rays in the horizontal direction remain parallel, and the focal point is the real focal point 800 (outer) of the lens group, and multiple second focal points converge on another focal line.

[0065] This application uses vertical focusing imaging, while horizontal light rays remain unchanged and therefore no image is formed. The curved total internal reflection lens 700 distributes the reflected light rays in a crisscross pattern, thus diverging the light pattern horizontally. The final light pattern is formed by the reflected beam from the curved total internal reflection lens 700. In other words, the edge of the curved total internal reflection lens 700 forms the boundary line of the near-light pattern cutoff line. Furthermore, compared to existing single-layer single-focal focusing lenses, this application uses two lenses (second lens 200 and third lens 300) to achieve focusing, resulting in a smaller overall thickness and consequently a lighter weight compared to single-focal focusing lenses.

[0066] Here, the first inclined plane 102 can mirror the curved total internal reflection lens 700 into a virtual image 400. The multiple real focal points 800 (i.e. focal lines) of the lens group are located at the edge of the virtual image, i.e. near the boundary, which can form a good light pattern and the cutoff line color is good, close to no dispersion.

[0067] In the second example of this application, the structure of the first lens 100 and the curved total internal reflection lens 700 can be the same as that of the first example, which will not be described in detail here. In addition, in both examples, an additional chamfer can be provided between the first inclined surface 102 and the incident surface 101.

[0068] According to a second aspect of this application, a vehicle lamp is provided, including the optical lens module described above.

[0069] In addition, the vehicle headlight may include multiple light sources 500 (e.g., LED lights) and multiple circuit boards. The multiple light sources 500 correspond one-to-one with the multiple circuit boards, and the multiple light sources 500 correspond one-to-one with the multiple curved total internal reflection lenses. The long side of any circuit board extends in the vertical direction, that is, the circuit board is placed vertically facing the optical axis. This layout provides good thermal circulation for the module, which is beneficial for heat dissipation and easy to install.

[0070] The optical lens module according to this application includes a first lens, a lens group, and a curved total internal reflection lens. The lens group includes a second lens and a third lens. The second lens is integrally formed with the first lens, and the third lens is disposed on one side of the second lens. The real focal point of the lens group is located outside the second lens. The side of the first lens facing away from the third lens includes an incident light surface and an inclined surface connected to each other. The curved total internal reflection lens is disposed below the inclined surface. The side of the curved total internal reflection lens facing away from the inclined surface is convex. The light emitted by the external light source of this application can enter through the incident light surface, be reflected by the curved total internal reflection lens, and then be reflected by the inclined surface. The lens group can project the light reflected by the inclined surface into parallel light. That is, the light reflected by the inclined surface can be projected into parallel light by the lens group. The optical path of this application is folded, which shortens the module length. The final optical pattern of the optical (near light) lens module provided by this application is the image of the beam reflected by the curved total internal reflection lens. The edge of the curved total internal reflection lens is the boundary line forming the cutoff line of the near light pattern. Compared with traditional lens structures, this application can form a good cutoff line color, which is close to zero dispersion.

[0071] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An optical lens module, characterized in that, The optical lens module comprises a first lens (100), a lens group and a curved surface total reflection lens (700), the lens group comprises a second lens (200) and a third lens (300), the second lens (200) is integrally formed with the first lens (100), the third lens (300) is arranged on one side of the second lens (200), and a real focus point (800) of the lens group is located outside the second lens (200), One side of the first lens (100) facing away from the third lens (300) comprises an incident surface (101) and an inclined surface connected with each other, the curved surface total reflection lens (700) is arranged below the inclined surface, and one side of the curved surface total reflection lens (700) facing away from the inclined surface is convex, Light emitted by an external light source can enter the incident surface (101), be reflected by the curved surface total reflection lens (700), and then be reflected by the inclined surface, The lens group can project the light reflected by the inclined surface as parallel light, The first lens (100) further comprises a second inclined surface (105), a third inclined surface (104), a fourth inclined surface (106) and a vertical plane (107), the incident surface (101), the first inclined surface (102), the third inclined surface (104), the second inclined surface (105) and the fourth inclined surface (106) are sequentially connected, The incident surface (101) extends in a vertical direction, the first inclined surface (102) extends towards the second lens (200) at a first angle relative to the incident surface (101), the fourth inclined surface (106) extends towards the first inclined surface (102) at a second angle relative to the incident surface (101), the second inclined surface (105) extends towards the second lens (200) at a third angle relative to the fourth inclined surface (106), and the third inclined surface (104) extends away from the first inclined surface (102) at a fourth angle relative to the second inclined surface (105), Any one of the curved surface total reflection lenses (700) comprises two arc edges (701) and a curved edge (702) connected with each other, and the curved edge (702) is connected to the third inclined surface (104), The two arc edges (701) are both connected to the fourth inclined surface (106), The width of the two arc edges (701) gradually decreases from top to bottom, The first inclined surface (102) can form a virtual image (400) of the curved surface total reflection lens, and the real focus point (800) of the lens group is located at the edge of the virtual image.

2. The optical lens assembly according to claim 1, wherein The optical lens module comprises a plurality of curved surface total reflection lenses (700), one side of the second lens (200) facing the third lens (300) comprises a plurality of convex portions (201), the convex surface of any one of the convex portions (201) is convex along the optical axis, and the plurality of convex portions (201) correspond to the plurality of curved surface total reflection lenses (700) one by one, Light emitted by an external light source can enter the light-in surface (101), be reflected by the corresponding curved total reflection lens (700), and then be reflected by the inclined surface. When viewed along the optical axis, the light reflected by the inclined surface remains parallel in the first direction (X) after passing through the corresponding convex portion (201), and the optical axis is perpendicular to the first direction (X).

3. The optical lens assembly according to claim 2, wherein The side of the third lens (300) facing the second lens (200) is concave along the optical axis, When viewed along the optical axis, the light projected by any convex portion (201) remains parallel in the first direction (X) after passing through the side of the third lens (300) facing the second lens (200), The side of the third lens (300) facing away from the second lens (200) is convex, The light projected by the side of the third lens (300) facing the second lens (200) and passing through the side of the third lens (300) facing away from the second lens (200) is parallel light.

4. The optical lens assembly according to claim 1, wherein The optical lens module includes a plurality of curved total reflection lenses (700), and light emitted by an external light source can enter the light-in surface (101), be reflected by the curved total reflection lens (700), and then be reflected by the inclined surface, When viewed along the optical axis, the light reflected by the inclined surface remains parallel in the first direction (X) after passing through the side of the second lens (200) facing the third lens (300).

5. The optical lens assembly according to claim 4, wherein The side of the third lens (300) facing the second lens (200) is concave along the optical axis, When viewed along the optical axis, the light projected by the side of the second lens (200) facing the third lens (300) remains parallel in the first direction (X) after passing through the side of the third lens (300) facing the second lens (200), The side of the third lens (300) facing away from the second lens (200) is convex, The light projected by the side of the third lens (300) facing the second lens (200) and passing through the side of the third lens (300) facing away from the second lens (200) is parallel light.

6. The optical lens assembly according to claim 1, wherein The first lens (100) further includes a vertical plane (107) connected to the fourth inclined surface (106), and the vertical plane (107) is parallel to the light-in surface (101).

7. A vehicle lamp characterized by The vehicle lamp further includes a plurality of light sources (500) and a plurality of circuit boards, the plurality of light sources (500) correspond one-to-one to the plurality of circuit boards, and the plurality of light sources (500) correspond one-to-one to the plurality of curved total reflection lenses (700), 8. The vehicle light of claim 7, wherein, The long side of any circuit board extends in the vertical direction. ​

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