Optical modules and lights

Abstract

The present invention provides an optical module and a headlight, which relate to the technical field of headlights and are designed to solve the problem of glare on the drivers of oncoming vehicles caused by the strong light emitted by high beams. The optical module comprises: a focusing assembly and a plurality of high beam light sources, wherein the plurality of high beam light sources are arranged at intervals along the same direction, the focusing assembly comprises a concentrator, and the concentrator comprises a plurality of light guides, wherein the light input end of each light guide corresponds to each high beam light source, and the light output end of each light guide converges to form an arc-shaped light output portion, and the angles between adjacent light guides are all acute angles. The optical module is applied to headlights, and by controlling different high beam light sources, the illumination area of ​​the light emitted by the headlights is controlled, thereby preventing the light from directly irradiating oncoming vehicles, thereby solving the problem of glare on the drivers of oncoming vehicles caused by the high beams.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps, and in particular to an optical module and a vehicle lamp. Background Art

[0002] Headlights are an essential component of a car, providing illumination when driving in low-light conditions such as poor lighting, foggy weather, or rainy weather. LEDs are increasingly being used in headlights due to their high brightness and excellent energy efficiency.

[0003] When driving in a dark environment at night, drivers often turn on the high beam of their car in order to see a wider range, which helps them better understand the road conditions ahead.

[0004] However, for vehicles traveling in the opposite direction of a vehicle with its high beams on, being illuminated by the high-brightness and strong light of the high beams may cause the driver to be dazzled and unable to see the road conditions clearly, which may easily lead to traffic accidents. Summary of the Invention

[0005] The object of the present invention is to provide an optical module to solve the technical problem in the prior art that the strong light emitted by the high beam causes dizziness to the driver of the oncoming vehicle.

[0006] The optical module provided by the present invention includes: a focusing assembly and at least three high-beam light sources, wherein the multiple high-beam light sources are arranged at intervals along the same direction, the focusing assembly includes a concentrator, and the concentrator includes multiple light guides. The light input end of each light guide is arranged in a one-to-one correspondence with each high-beam light source, and the light output end of each light guide converges together to form an arc-shaped light output portion, and the angles between adjacent light guides are all acute angles.

[0007] Preferably, the end surface of the light incident end of each of the light guide members is arc-shaped, and the end surface of the light incident end is provided with a light focusing groove.

[0008] In any of the above technical solutions, further, the high beam light source is installed on a high beam circuit board, the high beam circuit board is installed on a heat dissipation device, the focusing assembly also includes a mounting bracket, and the concentrator is connected to the heat dissipation device through the mounting bracket.

[0009] In any of the above technical solutions, further, the mounting bracket includes a first connecting member and a second connecting member respectively connected to the concentrator, a plurality of limiting grooves are provided on the first connecting member, the light input end of the light guide of the concentrator extends out of the limiting grooves, and the first connecting member and the second connecting member are respectively located on opposite sides of the concentrator.

[0010] In any of the above technical solutions, further, the second connecting member includes a pressure plate and an extension portion that are connected to each other, the pressure plate contacts the area of ​​the concentrator close to the light incident end, and the side surface of the extension portion is aligned with the side surface of the light output portion of the concentrator.

[0011] In any of the above technical solutions, further, the number of the extension parts is two, and the two extension parts are respectively aligned with two sides of the light emitting part of the concentrator.

[0012] In any of the above technical solutions, it further includes a low beam light source and a low beam reflector, the light emitted by the low beam light source is emitted through the low beam reflector, and the upper area of ​​the light output end of the concentrator is located in the optical path of the light reflected by the low beam reflector.

[0013] In any of the above technical solutions, further, reinforcing ribs are connected between the light guide members.

[0014] In any of the above technical solutions, further, the top surface of the light-emitting portion of the concentrator includes a first plane and a second plane. When the concentrator is placed horizontally, the horizontal plane of the first plane is higher than the horizontal plane of the second plane, and an inclined plane is formed between the first plane and the second plane.

[0015] Compared with the prior art, the optical module of the present invention has the following advantages:

[0016] The optical module described in the present invention is applied to a vehicle lamp. When the high beam is turned on, the light emitted by the high beam light source enters the light guide through the light input end of the light guide and is emitted from the light output portion of the light guide. Since the light output ends of the light guide corresponding to each high beam light source converge together, the concentrator converges the light emitted by each high beam light source, and makes the light emitted by adjacent high beam light-emitting components merge to a certain extent at the light output portion of the light guide, so that the light pattern connection of the emitted light is more uniform. Since there are multiple high beam light sources and they are spaced apart in the same direction, the illumination areas of the light emitted by different high beam light sources are different. Therefore, the illumination area of ​​the vehicle lamp can be controlled by controlling the brightness of each high beam light source to avoid the area where the oncoming vehicle is located, thereby avoiding the phenomenon of dazzling the driver of the oncoming vehicle.

[0017] Another object of the present invention is to provide a vehicle lamp to solve the technical problem in the prior art that the strong light emitted by the high beam causes dizziness to the driver of the oncoming vehicle.

[0018] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0019] A vehicle lamp is provided, wherein the optical module according to the above technical solution is installed.

[0020] The advantages of the vehicle lamp and the above-mentioned optical module over the prior art are the same and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the structure of the optical module provided in the embodiment of the present invention Figure 1 ;

[0023] Figure 2 Schematic diagram of the structure of the optical module provided in the embodiment of the present invention Figure 2 ;

[0024] Figure 3 A cross-sectional view of an optical module provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the assembly of a focusing component in an optical module provided by an embodiment of the present invention;

[0026] Figure 5 An exploded view of the light focusing assembly in the optical module according to an embodiment of the present invention;

[0027] Figure 6 A schematic structural diagram of a concentrator in an optical module provided by an embodiment of the present invention;

[0028] Figure 7 A partial schematic diagram of a concentrator in an optical module provided by an embodiment of the present invention;

[0029] Figure 8 This is a schematic structural diagram of a high beam circuit board in an optical module provided by an embodiment of the present invention.

[0030] In the figure: 100-focusing assembly; 110-concentrator; 111-light guide; 112-light input end; 113-light output part; 114-focusing groove; 115-reinforcement rib; 116-installation angle; 117-flange; 120-first connecting member; 121-limiting groove; 122-limiting column; 123-accommodating groove; 124-positioning groove; 131-limiting hole; 132-pressing plate; 133-extension part; 134-first plane; 135-second plane; 136-inclined surface; 140-locating pin; 200-high beam circuit board; 210-high beam light source; 220-connector; 300-lens; 400-lens bracket; 500-dimming bracket; 600-low beam reflector; 700-low beam circuit board; 800-heat dissipation device; 810-positioning column; 900-fan. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] Example 1

[0035] like Figure 1-8As shown, the optical module provided by the embodiment of the present invention includes: a focusing assembly 100 and a plurality of high-beam light sources 210, the focusing assembly 100 includes a concentrator 110, the concentrator 110 includes a plurality of light guides 111, the light input end 112 of each light guide 111 is arranged in one-to-one correspondence with each high-beam light source 210, the light output ends of each light guide 111 converge together to form an arc-shaped light output portion 113, and the angles between adjacent light guides 111 are all acute angles.

[0036] The optical module provided by an embodiment of the present invention is applied to a vehicle lamp. When the high beam is turned on, light emitted by the high beam light source 210 enters the light guide 111 through the light input end 112 of the light guide 111 and exits from the light output portion 113 of the light guide 111. Because the light output ends of the light guide 111 corresponding to each high beam light source 210 converge together, the concentrator 110 converges the light emitted by each high beam light source 210, allowing light from adjacent high beam light-emitting assemblies to merge somewhat at the light output portion 113 of the light guide 111, thereby achieving a more uniform light pattern. Because there are multiple high beam light sources 210, spaced apart in the same direction, the light emitted by different high beam light sources 210 illuminates different areas. Therefore, the illumination area of ​​the vehicle lamp can be controlled by turning each high beam light source 210 on and off to avoid the area where oncoming vehicles are located, thereby preventing drivers of oncoming vehicles from being dazzled. It is worth noting that the high beam light source 210 can utilize LEDs.

[0037] For example, when there are three high-beam light sources 210, the three high-beam light sources 210 are used to illuminate the left area, the middle area and the right area respectively. When an oncoming vehicle approaches from the left, the high-beam light source 210 illuminating the left area is turned off, and only the high-beam light source 210 illuminating the right area and the middle area is turned on, thereby ensuring that the driver of the vehicle can obtain a wider field of view without dazzling the oncoming driver.

[0038] like Figure 8 As shown, the high beam light source 210 is mounted on the high beam circuit board 200. Figure 8 In the embodiment, ten high-beam light sources 210 are arranged at intervals along the length of the circuit board. This arrangement allows the headlight's illumination area to be divided into ten zones, each of which can be controlled separately. This provides a wider range of control options, enabling a more optimal choice of expanding the illumination area and increasing the brightness while ensuring that drivers of oncoming vehicles are not illuminated.

[0039] In this embodiment, the number of high-beam light sources 210 is preferably 3-26. This number can be selected based on actual application needs. A relatively small number of high-beam light sources 210 is more energy-efficient and easier to control. A larger number of high-beam light sources 210 provides a more detailed division of the illumination area, enabling a wider range of control methods and achieving greater brightness.

[0040] In this embodiment, the number of the light guide members 111 is equal to the number of the high beam light sources 210 and they are arranged in a one-to-one correspondence. Figure 6 and Figure 7 As shown, the width of each light guide 111 gradually increases from its light input end 112 toward its light output end. The end surface of each light guide 111 at the light input end 112 is arc-shaped and is provided with a light focusing groove 114. This groove 114 is a cylindrical groove with a certain curvature on its sidewalls and bottom. The center point of the light focusing groove 114 corresponds to the center point of the high-beam light source 210, thereby increasing the utilization rate of the light emitted by the high-beam light source 210.

[0041] In one specific implementation of this embodiment, reinforcing ribs 115 are connected between each light guide 111. In a specific implementation, the reinforcing ribs 115 are connected to the side of the light guide 111 near the light input end 112. The reinforcing ribs 115 are used to improve structural strength and relative precision between the light guides 111, ensuring that the relative distance between the light guides 111 remains unchanged. In this embodiment, the light guide 111 and the reinforcing ribs 115 are an integral structure.

[0042] In this embodiment, concentrator 110 is made of a light-transmitting material, preferably transparent silicone. This material offers advantages in that it is heat-resistant and resists yellowing under long-term light exposure. Furthermore, its softness allows for close installation to the light source, resulting in high light efficiency. Alternatively, PC (Polycarbonate), PMMA (polymethyl methacrylate), or other transparent resin materials could also achieve the desired effect.

[0043] In any of the above technical solutions, further, to facilitate heat dissipation for the high beam circuit board 200, the high beam circuit board 200 is mounted on the heat dissipation device 800. To facilitate fixing the focusing assembly 100, the focusing assembly 100 further includes a mounting bracket, and the concentrator 110 is connected to the heat dissipation device 800 via the mounting bracket.

[0044] To ensure the connection strength of the mounting bracket, the mounting bracket is made of metal material and its surface is treated with matte black to avoid unnecessary reflections.

[0045] like Figure 4 and Figure 5As shown, in a specific implementation of this embodiment, the mounting bracket includes a first connecting member 120 and a second connecting member respectively connected to the concentrator 110, and a plurality of limiting grooves 121 are provided on the first connecting member 120. The light input end 112 of the light guide 111 of the concentrator 110 extends out of the limiting grooves 121. The first connecting member 120 and the second connecting member are respectively located on opposite sides of the concentrator 110. In order to facilitate the connection of the concentrator 110 to the mounting bracket, mounting angles 116 are respectively provided on both sides of the concentrator 110, and mounting holes are provided on the mounting angles 116. Through holes are respectively provided at positions corresponding to the mounting holes on the first connecting member 120 and the second connecting member. The mounting bracket and the concentrator 110 can be connected by bolts or positioning pins 140, etc. Figure 5 A positioning pin 140 is used to connect the mounting bracket and the concentrator 110. The first connecting member 120 is located below the concentrator 110, and the second connecting member is located above the concentrator 110. The second connecting member and the first connecting member 120 clamp the concentrator 110 from the top and bottom. The positioning pin 140 passes through the through hole on the second connecting member, the mounting hole on the concentrator 110, and the through hole on the first connecting member 120 from top to bottom, thereby connecting the mounting bracket and the concentrator 110.

[0046] Furthermore, if Figure 4 As shown, in order to initially position the first connecting member 120 and the second connecting member between the installation positioning pins 140, a limiting column 122 is provided on the upper surface of the first connecting member 120, and a limiting hole 131 is provided on the second connecting member. During the installation process, the limiting column 122 is inserted into the limiting hole 131 for initial positioning. After the installation is completed, the cooperation between the limiting column 122 and the limiting hole 131 also plays a limiting role on the first connecting member 120 and the second connecting member.

[0047] In order to facilitate the initial positioning of the concentrator 110 and the first connecting member 120, the light input end 112 of the concentrator 110 is placed in the corresponding limiting groove 121. The limiting groove 121 not only limits the concentrator 110, but also separates the light input ends 112 of each light guide 111 to avoid mutual light leakage. Figure 5 As shown, the limiting groove 121 is a U-shaped groove with its opening facing upward, and the light incident end 112 of the concentrator 110 is placed into the U-shaped groove from top to bottom.

[0048] Furthermore, a flange 117 is provided at the bottom of the light-emitting portion 113 of the concentrator 110, and a receiving groove 123 is provided at the top of the first connecting member 120. When the concentrator 110 is placed on the first connecting member 120, the flange 117 extends into the receiving groove 123, thereby playing a role in initial positioning.

[0049] In this embodiment, the mounting bracket and the heat sink 800 are connected by bolts. In order to facilitate the initial positioning when the mounting bracket and the heat sink 800 are connected, a positioning column 810 is provided on the heat sink 800, and a positioning groove 124 is provided on the mounting bracket. Specifically, a positioning groove 124 is provided at both ends of the first connecting member 120. The positioning groove 124 and the positioning column 810 are in an interference fit. In order to make the connection between the positioning groove 124 and the positioning column 810 tighter, the side surface of the positioning groove 124 can be surrounded by two opposite arc surfaces and two opposite planes, or a positioning rib can be provided in the positioning groove 124. The structures of the two positioning grooves 124 can be the same or different. For example, in Figure 4 In the figure, the positioning groove 124 on the left is surrounded by two opposite arc surfaces and two opposite planes, and four positioning ribs are provided in the positioning groove 124 on the right, and the positioning ribs are evenly distributed along the circumferential direction in the positioning groove 124.

[0050] like Figure 8 As shown, a rectangular hole is provided on the high beam circuit board 200, and the positioning post 810 extends from the rectangular hole to cooperate with the positioning groove 124. Of course, the shape of the hole is not limited to a rectangle, and can also be a circle, a polygon, or the like.

[0051] The high-beam circuit board 200 is further provided with a connector 220 for connecting to a power source or a control device to control each high-beam light source 210 .

[0052] In the improved optical module of this embodiment, a low beam function can also be integrated. Figure 3 As shown, the optical module further includes a low-beam light source and a low-beam reflector 600. Light emitted by the low-beam light source is emitted through the low-beam reflector 600, and the upper area of ​​the light-emitting portion 113 of the concentrator 110 is located in the optical path of the light reflected by the low-beam reflector 600. With this arrangement, the upper area of ​​the light-emitting portion 113 of the concentrator 110 can form a low-beam cutoff line.

[0053] Because the high beam angle range is relatively narrow in the horizontal direction and the low beam width is relatively large, in order to form a complete low beam cutoff line, in any of the above technical solutions, the second connecting member further includes a pressure plate 132 and an extension portion 133 that are connected to each other. The pressure plate 132 contacts the area of ​​the concentrator 110 near the light input end 112, and the side surface of the extension portion 133 aligns with the side surface of the light output portion 113 of the concentrator 110. The extension portion 133 is arc-shaped. When the extension portion 133 is aligned with the light output portion 113 of the concentrator 110, the extension portion 133 and the light output portion 113 form a wider arc structure. The extension portion 133 cooperates with the upper boundary of the light output portion 113 of the concentrator 110 to form a complete low beam cutoff line.

[0054] The number of the extension portion 133 may be one or two. When the number of the extension portion 133 is one, the extension portion 133 is aligned with one side of the light emitting portion 113 of the concentrator 110; Figure 4 and Figure 5 As shown, when there are two extending portions 133 , the two extending portions 133 are aligned with two sides of the light emitting portion 113 of the concentrator 110 , respectively.

[0055] In any of the above technical solutions, the top surface of the light-emitting portion 113 of the concentrator 110 further includes a first plane 134 and a second plane 135. When the concentrator 110 is placed horizontally, the first plane 134 is located at a higher level than the second plane 135. An inclined surface 136 is formed between the first plane 134 and the second plane 135. The top surface of the extension portion 133 located on one side of the first plane 134 is coplanar with the first plane 134, and the top surface of the extension portion 133 located on the opposite side of the second plane 135 is coplanar with the second plane 135. The angle between the inclined surface 136 and the first plane 134 can be 15°, 45°, or other angles.

[0056] like Figure 1-3 As shown, in a specific embodiment of the present application, the optical module includes a lens 300, a lens bracket 400, a dimming bracket 500, a focusing assembly 100, a high-beam circuit board 200, a low-beam reflector 600, a low-beam circuit board 700, and a heat sink 800. The lens 300 is fixed by the lens bracket 400, the dimming bracket 500 is used to connect the lens 300 and the heat sink 800 and other structures, the low-beam circuit board 700 and the high-beam circuit board 200 are both mounted on the heat sink 800, the low-beam circuit board 700 is mounted on the upper part of the heat sink 800 and is arranged corresponding to the low-beam reflector 600, and the high-beam circuit board 200 is arranged on the side of the heat sink 800 facing the lens 300. The focusing assembly 100 is connected to the heat sink 800. The light input end 112 of the concentrator 110 in the focusing assembly 100 faces the high-beam light source 210 on the high-beam circuit board 200, and the light output portion 113 of the concentrator 110 faces the lens 300. To improve the heat dissipation efficiency of the heat sink 800, the optical module also includes a fan 900, which is located on the side of the heat sink 800 facing away from the lens 300.

[0057] The heat sink 800 may be a metal aluminum die casting. The lens 300 is a convex lens, and the focal plane of the lens 300 is located near the low beam cut-off line formed by the concentrator 110 and the extension portion 133 .

[0058] Example 2

[0059] A second embodiment of the present invention provides a vehicle lamp, in which the optical module provided in the first embodiment is installed.

[0060] The advantages of the vehicle lamp and the above-mentioned optical module over the prior art are the same and will not be described in detail here.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An optical module, characterized in that: include: A focusing assembly and multiple high-beam light sources, wherein the multiple high-beam light sources are spaced apart in the same direction, the focusing assembly includes a concentrator, and the concentrator includes multiple light guides, wherein the light input end of each light guide is arranged in a one-to-one correspondence with each high-beam light source, and the light output ends of each light guide converge together to form an arc-shaped light output portion, and the angles between adjacent light guides are all acute angles; The high-beam light source is mounted on a high-beam circuit board, which is mounted on a heat sink. The focusing assembly further comprises a mounting bracket, and the concentrator is connected to the heat sink via the mounting bracket. The mounting bracket includes a first connecting member and a second connecting member respectively connected to the concentrator, the first connecting member is provided with a plurality of limiting grooves, the light incident end of the light guide of the concentrator extends out of the limiting grooves, and the first connecting member and the second connecting member are respectively located on opposite sides of the concentrator; The second connecting member includes a pressing plate and an extension portion connected to each other, the pressing plate contacts the area of ​​the concentrator near the light incident end, and the side surface of the extension portion is aligned with the side surface of the light exit portion of the concentrator; the extension portion cooperates with the upper boundary of the light exit portion of the concentrator to form a complete low beam cut-off line; A positioning column is provided on the heat dissipation device; positioning grooves are respectively provided at both ends of the first connecting member; the side surfaces of the positioning groove are surrounded by two opposite arc surfaces and two opposite planes; or a positioning rib is provided in the positioning groove, and the positioning groove and the positioning column are interference fit.

2. The optical module according to claim 1, wherein: The end surface of the light incident end of each light guide member is arc-shaped, and the end surface of the light incident end is provided with a light focusing groove.

3. The optical module according to claim 1, wherein: There are two extending portions, and the two extending portions are respectively aligned with two sides of the light emitting portion of the concentrator.

4. The optical module according to claim 1, wherein: It also includes a low-beam light source and a low-beam reflector. The light emitted by the low-beam light source is emitted through the low-beam reflector. The upper area of ​​the light-emitting end of the concentrator is located in the light path of the light reflected by the low-beam reflector.

5. The optical module according to claim 1, wherein: Reinforcing ribs are connected between the light guide members.

6. The optical module according to claim 1, wherein: The top surface of the light emitting portion of the concentrator includes a first plane and a second plane. When the concentrator is placed horizontally, the horizontal plane of the first plane is higher than the horizontal plane of the second plane. An inclined plane is formed between the first plane and the second plane.

7. A vehicle lamp, characterized in that: The optical module according to any one of claims 1 to 6 is installed in the vehicle lamp.

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