Small-opening low beam module system

Abstract

The invention provides a small-opening low-beam module system which comprises a low-beam lens body, a low-beam light source module, a low-beam main light type total reflection module, a low-beam auxiliary light type total reflection module and a low-beam light-in lens module are arranged at the light-in end of the low-beam lens body, and a low-beam light-out lens module is arranged at the light-out end of the low-beam lens body; a cut-off line area is formed between the low-beam main light type total reflection module and the low-beam auxiliary light type total reflection module; the low-beam main light type total reflection module and the low-beam auxiliary light type total reflection module are located on the upper side and the lower side of the cut-off line area respectively. A traditional low beam optical system is optimized and simplified into one part which is only provided with the light inlet face, the total reflection face and the light outlet face, and the design of a module with an extremely small opening can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps, and in particular to a small-opening low-beam module system, in particular to a minimalist small-opening low-beam module system. Background Art

[0002] The current automotive lighting industry is highly competitive. Whether in terms of performance, cost, or styling, traditional optical designs are difficult to achieve increasingly high design requirements. Due to the requirements of styling design, the design of extremely small opening modules has become a design difficulty due to low efficiency, complex parts, and difficulty in mass production. Traditional optical systems have many parts and are large in size. They can only sacrifice most of the light efficiency and rely on quantity to achieve the performance of extremely small opening modules, resulting in great waste. Therefore, how to achieve the design of extremely small opening modules has become a current technical difficulty.

[0003] The present invention provides a minimalist small-opening low-beam module system design that can solve the problem of balancing the optical performance and cost of vehicle lights, and provides a new design idea for future small-opening module designs. Summary of the invention

[0004] In view of the defects in the prior art, an object of the present invention is to provide a small-aperture low-beam module system.

[0005] A small-aperture low-beam module system provided by the present invention comprises: a low-beam lens body, a low-beam light source module, a low-beam main light type total reflection module, a low-beam auxiliary light type total reflection module and a low-beam light incident lens module are arranged at the light incident end of the low-beam lens body, and a low-beam light emitting lens module is arranged at the light emitting end of the low-beam lens body;

[0006] A cut-off line area is formed between the low-beam main light type total reflection module and the low-beam auxiliary light type total reflection module; the low-beam main light type total reflection module and the low-beam auxiliary light type total reflection module are respectively located at the upper and lower sides of the cut-off line area;

[0007] The light is emitted from the low beam light source module, enters the low beam lens body through the low beam incident lens module, and the light entering the low beam lens body: a part of the light reaches the low beam main light type total reflection module for total reflection, and is emitted through the low beam output lens module to form a low beam main light type below the cut-off line area; the other part of the light reaches the low beam auxiliary light type total reflection module for total reflection, and is emitted through the low beam output lens module to form a three-zone light type above the cut-off line area.

[0008] Preferably, the cut-off line region comprises: a matte leather grain surface and a cut-off line structure;

[0009] The low beam main light type total reflection module and the low beam auxiliary light type total reflection module are connected through the matte leather texture surface, and the matte leather texture surface is used to diverge the light that would originally cause three-zone stray light to the outside of the module;

[0010] The cut-off line structure is arranged on the matte leather texture surface.

[0011] Preferably, the boundary of the low-beam main-light type total reflection module includes: a first cut-off line area, a second cut-off line area and a third cut-off line area which are connected in sequence;

[0012] The first cut-off line area, the second cut-off line area and the third cut-off line area are arranged corresponding to the low-beam auxiliary light type total reflection module and are connected to the low-beam auxiliary light type total reflection module;

[0013] A cutoff inflection point is formed on the second cutoff region, so the position of the cutoff inflection point is within ±5 degrees of the light emission angle of the low-beam light source module.

[0014] Preferably, the boundary of the low beam auxiliary light type total reflection module includes: a first three-zone area, a second three-zone area and a third three-zone area connected in sequence;

[0015] The first three zones are arranged corresponding to the first cut-off zone, the second three zones are arranged corresponding to the second cut-off zone, and the third three zones are arranged corresponding to the third cut-off zone.

[0016] Preferably, the low-beam main-light type total reflection module and the matte leather texture surface are located above the low-beam incident light lens module, and the light input direction of the low-beam light source module is from bottom to top;

[0017] The low-beam auxiliary light type total reflection module is located at one side of the low-beam incident light lens module.

[0018] Preferably, the low beam light emitting lens module has two focal points: one focal point is located at a position where the low beam main light pattern is formed, and the other focal point is located at a boundary of the low beam auxiliary light type total reflection module.

[0019] Preferably, a signal light source module is provided on the low beam lens body at a defocused position corresponding to the low beam light output lens module, and the light emitted by the signal light source module enters the low beam lens body through the signal light light incident lens module.

[0020] Preferably, the low beam lens body, the low beam light source module, the low beam main light type total reflection module, the low beam auxiliary light type total reflection module, the low beam incident light lens module and the low beam output light lens module are an integrally formed structure.

[0021] Preferably, the outer surface of the low beam main light type total reflection module is plated with an aluminum layer;

[0022] And / or, a pattern structure is provided on the matte leather surface;

[0023] And / or, the low beam auxiliary light type total reflection module is a plane or a free-form surface;

[0024] And / or, the low beam auxiliary light type total reflection module is an overall segmented pattern structure;

[0025] And / or, the outer surface of the low beam auxiliary light type total reflection module is plated with an aluminum layer;

[0026] And / or, the outer surface of the low beam auxiliary light type total reflection module is provided with leather texture;

[0027] And / or, a microstructure is arranged on a surface of the low-beam light output lens module.

[0028] Preferably, the low beam light source module is any one of the following: single chip, multi-chip, SMD LED, laser light source, RGB light source;

[0029] When the low beam light source module is a SMD LED, it can be set in any of the following ways:

[0030] Method 1: The SMD LED is integrated on the PCBA board;

[0031] Method 2: The SMD LED is integrated on the heat sink and connected to the PCBA board through metal wires;

[0032] The material of the low beam lens body is any one of the following: polycarbonate, polymethyl methacrylate, glass, and silicone.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention adopts a minimalist optical system design and designs three zones on the low-beam auxiliary light type total reflection module, avoiding the design on the lens, thereby improving the appearance consistency of the module, the low-beam auxiliary light type total reflection module area, increasing the distance between the low-beam light source module and the low-beam main light type total reflection module, reducing the thermal risk of parts, and improving the focal length limit of the low-beam main light type total reflection module.

[0035] 2. The present invention adopts a minimalist optical system design, integrating the light incident surface, total reflection surface and light output surface into one part, thus solving the problem of small opening module size. The maximum length is 55mm, the minimum length is only 40mm, and the size is only half of that of the traditional optical system. This reduces the light loss and tolerance problems caused by multiple parts and nearly doubles the optical efficiency.

[0036] 3. The present invention adopts a minimalist optical system design to integrate the light incident surface, the total reflection surface and the light emitting surface into one part, thereby reducing the number of parts and molds and lowering the cost. At the same time, this is conducive to realizing modular design. The low beam function is realized by multiple modules, which can meet the requirements of different customers for good performance and styling.

[0037] 4. The present invention adopts a very simple optical system design, and its low beam incident light lens module, low beam main light type total reflection module, low beam auxiliary light type total reflection module and low beam output light lens module can all be specially designed according to requirements, thereby improving the flexibility and adaptability of the module.

[0038] 5. The present invention can realize the functions of position light, turn signal light or daytime running light by placing a signal light low beam light source module out of focus. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0040] Figure 1 It is a schematic diagram of the three-dimensional structure of a small-aperture low-beam module system;

[0041] Figure 2 This is a bottom view of the small-opening low-beam module system;

[0042] Figure 3 It is the top view and AA section view of the small-aperture low-beam module system;

[0043] Figure 4 It is a schematic diagram of the optical principle of a small-aperture low-beam module system;

[0044] Figure 5 This is a schematic diagram of the three-zone design principle of a small-aperture low-beam module system;

[0045] Figure 6 Schematic diagram showing the effect of different lens focal lengths on the same small aperture low beam module system;

[0046] Figure 7 Schematic diagram of the optical principle for the bright spot and widening design of the low beam module system with a small aperture;

[0047] Figure 8 It is a schematic diagram of the bright spot and widening optical performance of the small-aperture low-beam module system;

[0048] Fig. 9 View of the optical system module with minimal functional reuse for the opening.

[0049] The figure shows:

[0050] Low beam lens body 1 Low beam auxiliary light type total reflection module 103

[0051] Low beam light source module 101 First three zones 1031

[0052] Low beam main light type total reflection module 102 Second and third zone area 1032

[0053] The first cut-off line area 1021 The third area 1033

[0054] Second cut-off line region 1022 Low beam incident light lens module 104

[0055] The third cut-off line region 1023 is a low beam light output lens module 105

[0056] Cut-off line inflection point 1024 Signal light source module 106

[0057] Matt leather surface 1025 Signal light incident lens module 107 DETAILED DESCRIPTION

[0058] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0059] Embodiment 1:

[0060] As shown in 1-9, the present embodiment provides a small-aperture low beam module system, comprising: a low beam lens body 1, a low beam light source module 101, a low beam main light type total reflection module 102, a low beam auxiliary light type total reflection module 103 and a low beam light input lens module 104 are arranged at the light input end of the low beam lens body 1, and a low beam light output lens module 105 is arranged at the light output end of the low beam lens body 1; a cutoff line area is formed between the low beam main light type total reflection module 102 and the low beam auxiliary light type total reflection module 103; the low beam main light type total reflection module 102 and the low beam auxiliary light type total reflection module 103 are respectively located at the upper and lower sides of the cutoff line area. Light is emitted from the low beam light source module 101, and enters the low beam lens body 1 through the low beam incident light lens module 104. A portion of the light entering the low beam lens body 1 reaches the low beam main light type total reflection module 102 for total reflection, and is emitted through the low beam light emission lens module 105 to form a low beam main light type below the cutoff line area; another portion of the light reaches the low beam auxiliary light type total reflection module 103 for total reflection, and is emitted through the low beam light emission lens module 105 to form a three-zone light type above the cutoff line area. The main light type is below the cutoff line, and the auxiliary light type is above the cutoff line, and they do not interfere with each other.

[0061] The cut-off line area includes: a matte leather texture surface 1025 and a cut-off line structure; the low-beam main light type total reflection module 102 and the low-beam auxiliary light type total reflection module 103 are connected through the matte leather texture surface 1025, and the matte leather texture surface 1025 is used to diverge the light that would originally cause three-zone stray light to the outside of the module; the cut-off line structure is set on the matte leather texture surface 1025.

[0062] The low beam main light type total reflection module 102 and the matte leather texture surface 1025 are located above the low beam incident light lens module 104 , and the light input direction of the low beam light source module 101 is from bottom to top; the low beam auxiliary light type total reflection module 103 is located on one side of the low beam incident light lens module 104 .

[0063] like Figure 1 As shown, the matte leather texture surface 1025 is arranged horizontally, the low beam main light type total reflection module 102 is located on the upper side of the matte leather texture surface 1025, and the low beam auxiliary light type total reflection module 103 is located on the lower side of the matte leather texture surface 1025. The upper boundary of the low beam main light type total reflection module 102 is connected to the upper wall surface of the low beam lens body 1, the lower boundary of the low beam main light type total reflection module 102 is connected to one boundary of the matte leather texture surface 1025, the upper boundary of the low beam auxiliary light type total reflection module 103 is connected to the other boundary of the matte leather texture surface 1025, and the lower boundary of the low beam auxiliary light type total reflection module 103 is connected to the lower wall surface of the low beam lens body 1. The low beam incident lens module 104 is arranged on the lower wall surface of the low beam lens body 1.

[0064] The low beam lens body 1, the low beam light source module 101, the low beam main light type total reflection module 102, the low beam auxiliary light type total reflection module 103, the low beam light input lens module 104 and the low beam light output lens module 105 are an integrated structure. The low beam light source module 101 is any one of the following: single chip, multi-chip, SMD LED, laser light source, RGB light source; the material of the low beam lens body 1 is any one of the following: polycarbonate, polymethyl methacrylate, glass, silicone.

[0065] When the low beam light source module 101 is a SMD LED, it can be set in any of the following ways:

[0066] Method 1: SMD LED is integrated on PCBA board;

[0067] Method 2: The SMD LED is integrated on the heat sink and connected to the PCBA board through metal wires;

[0068] In this embodiment, the low beam light source module 101 is a SMD LED. In other embodiments, other light source types may be selected according to actual needs.

[0069] The low beam output lens module 105 has two focal points: one is located at the position where the low beam main light pattern is formed, and the other is located at the boundary of the low beam auxiliary light pattern total reflection module 103. A signal light source module 106 is provided on the low beam lens body 1 corresponding to the defocus position of the low beam output lens module 105, and the light emitted by the signal light source module 106 enters the low beam lens body 1 through the signal light incident lens module 107.

[0070] The boundary of the low-beam main light type total reflection module 102 includes: a first cut-off line area 1021, a second cut-off line area 1022, and a third cut-off line area 1023 which are connected in sequence; the first cut-off line area 1021, the second cut-off line area 1022, and the third cut-off line area 1023 are arranged corresponding to the low-beam auxiliary light type total reflection module 103, and are connected to the low-beam auxiliary light type total reflection module 103. A cut-off line inflection point 1024 is formed on the second cut-off line area 1022, so the position of the cut-off line inflection point 1024 is within ±5 degrees of the light emission angle of the low-beam light source module 101.

[0071] The boundary of the low beam auxiliary light type total reflection module 103 includes: a first three-zone area 1031, a second three-zone area 1032 and a third three-zone area 1033 which are connected in sequence; the first three-zone area 1031 is set corresponding to the first cut-off line area 1021, the second three-zone area 1032 is set corresponding to the second cut-off line area 1022, and the third three-zone area 1033 is set corresponding to the third cut-off line area 1023.

[0072] The opening size of the low-beam light output lens module 105 is any one of the following: 5mmx5mm, 6mmx6mm, 7mmx7mm to 20mmx20mm.

[0073] The outer surface of the low beam main light type total reflection module 102 is plated with an aluminum layer; the matte leather texture surface 1025 is provided with a pattern structure; the low beam auxiliary light type total reflection module 103 is a plane or a free-form surface; the low beam auxiliary light type total reflection module 103 is an overall segmented pattern structure, and the overall segmented pattern structure is a millimeter-level fisheye pattern, which is used for three-light design; the outer surface of the low beam auxiliary light type total reflection module 103 is plated with an aluminum layer; the outer surface of the low beam auxiliary light type total reflection module 103 is provided with leather texture; the surface of the low beam light output lens module 105 is provided with a microstructure, and the microstructure is a nanometer or micrometer-level pattern.

[0074] Embodiment 2:

[0075] Those skilled in the art may understand this embodiment as a more specific description of Embodiment 1.

[0076] The present embodiment provides a minimalist small-aperture low beam module system design, including: a low beam light source module 101 , a low beam main light type total reflection module 102 , a low beam auxiliary light type total reflection module 103 , a low beam incident light lens module 104 , and a low beam exit light lens module 105 .

[0077] The boundary of the low-beam main-light type total reflection module 102 includes a first cut-off region 1021 , a second cut-off region 1022 , a third cut-off region 1023 , a cut-off inflection point 1024 , and a matte leather texture surface 1025 .

[0078] The low-beam auxiliary light type total reflection module 103 includes a first three-zone area 1031 , a second three-zone area 1032 , and a third three-zone area 1033 .

[0079] Because the brightest point of the low beam is near the cut-off line, the position of the cut-off line inflection point 1024 is within ±5 degrees of the light emission angle of the low beam light source module 101 .

[0080] Light is emitted from the low-beam light source module 101 , and then converged by the low-beam incident lens module 104 and enters the component.

[0081] A part of it reaches the low beam main light type total reflection module 102, is totally reflected into A1A2 light, and is emitted into A2A3 light through the low beam light output lens module 105. After reaching the 25-meter screen, the low beam main light type is formed. The cut-off lines A, B, and C of the low beam light type are formed by the first cut-off line area 1021, the second cut-off line area 1022, and the third cut-off line area 1023 at the boundaries of the low beam main light type total reflection module 102, and a D corresponding to the cut-off line inflection point 1024 is formed. The cut-off line position is adjusted by adjusting the boundary position.

[0082] The other part reaches the low beam auxiliary light type total reflection module 103 for total reflection into B1B2 light, and is emitted into B2B3 light through the low beam light output lens module 105, and forms a three-zone light pattern after reaching the 25-meter screen. The three-zone light pattern areas E, F, and G are formed by the first three-zone area 1031, the second three-zone area 1032, and the third three-zone area 1033 of the boundary of the low beam auxiliary light type total reflection module 103. The low beam auxiliary light type total reflection module area increases the distance between the low beam light source module 101 and the low beam main light type total reflection module 102, reduces the thermal risk of parts, and increases the focal length limit of the total reflection module.

[0083] At the same time, the matte leather surface 1025 can disperse the light that would originally cause three-zone stray light outside the module, reducing the risk of exceeding regulations. The two focal points of the low-beam light-emitting lens module 105 are designed, one (F') is at 25 meters (regulatory requirements), and the other (F1) is at the upper boundary of the low-beam auxiliary light type total reflection module 103 (focal length is within 60mm), and its front and rear positions are within ±5mm, and its upper and lower positions are within ±5mm. There is no restriction on the left and right positions, and it can be designed according to the requirements of the target light type (low-beam bright spot light type, low-beam widened light type). At the same time, a signal light low-beam light source module is placed out of focus to realize the functions of position lights, turn signals or daytime running lights.

[0084] The minimum opening size of the low-beam light output lens module 105 is 5 mm x 5 mm, and can also be 6 mm x 6 mm, 7 mm x 7 mm to 20 mm x 20 mm.

[0085] Furthermore, the focal length of the low beam main light type total reflection module 102 can be adjusted according to design requirements (1mm to 5mm). The smaller the focal length, the more focused the light pattern and the larger the maximum value. Conversely, the more dispersed the light pattern and the smaller the maximum value.

[0086] Furthermore, the outer surface of the low-beam main-light type total reflection module 102 may be plated with aluminum, thereby reducing light loss and improving optical efficiency.

[0087] Furthermore, the position and shape of the cut-off line area of ​​the low-beam main-light type total reflection module 102 are adjustable and can be designed according to different regulations and customer requirements.

[0088] Furthermore, the matte leather texture surface 1025 of the low-beam main-light type total reflection module 102 may be provided with a pattern structure to improve the matte capability.

[0089] Furthermore, the depth of the matte leather texture surface 1025 of the low-beam main-light type total reflection module 102 can be adjusted according to the three-zone design requirements. If stronger energy is required, the depth is smaller, and vice versa, if weaker energy is required, the depth is greater.

[0090] Furthermore, the surface of the low beam auxiliary light type total reflection module 103 can be designed according to requirements, and can be a flat surface, a free-form surface, etc.

[0091] Furthermore, the three-zone design on the low-beam auxiliary light type total reflection module 103 area may be an overall segmented pattern, or may be other three-zone designs such as a separate design for a special area.

[0092] Furthermore, the outer surface of the low beam auxiliary light type total reflection module 103 may be plated with aluminum, thereby reducing light loss and improving optical efficiency.

[0093] Furthermore, the outer surface of the low beam auxiliary light type total reflection module 103 may be provided with skin texture, thereby reducing the three-zone stray light.

[0094] Furthermore, the surface shape of the low-beam incident lens module 104 can be adjusted according to design requirements, and can converge light or diverge light, and the extent of convergence or diffusion can also be adjusted by the surface shape.

[0095] Furthermore, the focal length of the low beam emission lens module 105, that is, the distance to the low beam auxiliary light type total reflection module 103 is adjustable. The smaller the distance, the higher the efficiency, the more scattered the light pattern, and the smaller the maximum value. Conversely, the larger the distance, the lower the efficiency, the more concentrated the light pattern, and the larger the maximum value.

[0096] Furthermore, microstructures may be added to the surface of the low-beam light output lens module 105 to improve the uniformity of the road surface.

[0097] Furthermore, the number, arrangement and lighting of the low beams finally combined into a low beam by an optical system of multiple low beam bright spot light patterns and low beam spread light patterns can be adjusted according to performance requirements, styling requirements and lighting requirements.

[0098] Furthermore, the low beam light source module 101 may be a single chip, a multi-chip or a SMD LED or a laser light source or an RGB light source.

[0099] Further, the low beam light source module 101 is configured as a SMD LED, which is integrated on a PCBA or integrated on a heat sink. When integrated on a heat sink, the PCBA board is connected via a metal wire. In other embodiments, other light source types can be selected according to actual needs.

[0100] Furthermore, the material of the system may be polycarbonate (ie PC) or polymethyl methacrylate (ie PMMA) or glass or silicone (ie Silicon).

[0101] Embodiment 3:

[0102] Those skilled in the art may understand this embodiment as a more specific description of Embodiment 1.

[0103] This embodiment provides a minimalist low beam module system design with a small opening. More specifically, the low beam module opening is a 5mm x 5mm thick-walled component design, such as Figure 1 and Figure 2 As shown in the module view and top view of the minimalist small-opening low beam system, a single minimalist low beam module system includes a low beam light source module 101, a low beam main light type total reflection module 102, a low beam auxiliary light type total reflection module 103, a low beam incident light lens module 104 and a low beam output light lens module 105.

[0104] like Figure 3 and Figure 4 As shown in the top view and AA cross-sectional view and optical principle diagram of the extremely simple small-opening low-beam module system, the light is emitted from the low-beam light source module 101, and then converged by the low-beam light input lens module 104 and enters the part. A part reaches the low-beam main light type total reflection module 102 for total reflection into A1A2 light, and is emitted by the low-beam light output lens module 105 into A2A3 light, and forms the low-beam main light type after reaching the 25-meter screen. The cutoff lines A, B, and C of the low-beam light type are formed by the first cutoff line area 1021, the cutoff line 1022, and the second cutoff line area 1023 of the boundary of the low-beam main light type total reflection module 102, and form D corresponding to the cutoff line inflection point 1024. The cutoff line position is adjusted by adjusting the boundary position. The other part reaches the low beam auxiliary light type total reflection module 103, is totally reflected into B1B2 light, and is emitted into B2B3 light through the low beam light output lens module 105. After reaching the 25-meter screen, a three-zone light pattern is formed. Areas E, F, and G of the three-zone light pattern are formed by the first three-zone area 1031, the second three-zone area 1032, and the third three-zone area 1033 at the boundaries of the low beam auxiliary light type total reflection module 103.

[0105] Figure 3 middle, Figure 3 .1 is a top view of the small-opening low-beam module system. Figure 3 .2 is Figure 3 .1 Schematic cross-sectional view along line AA.

[0106] The low beam output lens module 105 has two focal points, one (F') at 25 meters (regulatory requirement), and the other (F1) at the upper boundary of the low beam auxiliary light type total reflection module 103. The front and rear positions are within ±5mm, and the front and rear positions are within ±5mm. There is no restriction on the left and right positions, and it can be designed according to the requirements of the target light type (low beam bright spot light type, low beam widened light type). In order to reduce light loss and improve optical efficiency, the outer surface of the low beam main light type total reflection module 102 is aluminum-plated. The low beam incident lens module improves the light input efficiency. At the same time, the minimalist optical system under this opening also reduces the size of the module. The maximum length is 55mm and the minimum length is only 40mm, which is much smaller than the conventional optical system design, and also improves the light output efficiency. The integrated design reduces the light loss caused by multiple parts. Therefore, when the opening is 15mmx15mm, the efficiency of this low beam system can reach 53%; when the opening is 10mmx10mm, the efficiency of this low beam system can reach 40%; although the opening is 5mmx5mm, the efficiency of this low beam system can still reach 25%, which is much higher than the efficiency of other extremely small opening modules (10%).

[0107] More specifically, Figure 4 The optical principle diagram is shown in FIG. Figure 4 .1 is a schematic diagram of light propagation in a low-beam module system with a small opening. Because the brightest point of the low beam is near the cutoff line, the cutoff line should be placed just above the light output of the low-beam light source module, that is, within ±5 degrees of the luminous angle. Then the surface below the cutoff line of the low-beam main light type total reflection module will cause stray light, affecting the optical performance and regulatory requirements. At the same time, being too close to the low-beam light source module will also cause heat resistance risks to the parts. Figure 4 .2 is a schematic diagram of light propagation in a low beam module without a matte leather texture surface. Under the traditional design, light is emitted from the low beam light source module and passes through the low beam incident light lens module into the thick-walled component. A portion of the light A12 reaches the low beam main light type total reflection module, and another portion of the light B12 reaches the side wall below the cutoff line. Because the ability of the light surface module near the center of the divergence angle is strong, no matter how it is designed or the absorption coating is added, it cannot be completely eliminated, so it is very easy to generate stray light that affects regulations. Therefore, this embodiment designs a special three-zone structure, such as Figure 4.3 is a schematic diagram of light propagation in a low beam module with a matte leather surface. The light B13 and C13 below the cutoff line will continue to propagate in the structure. Light B13 can assist the total reflection module design to design the light within the three zones B23, and design the unnecessary light to diffuse out on the matte surface B'13. Because light C13 is close to the center area of ​​the divergence angle of the low beam light source module, it directly diffuses out through the matte surface C23. This ensures the position of the main light cutoff line, increases the distance between the low beam light source module 101 and the low beam main light type total reflection module 102, reduces the thermal risk of parts, increases the focal length limit of the low beam main light type total reflection module, and avoids the influence of stray light.

[0108] More specifically, since the low beam has both brightness requirements and a width requirement of at least 35-45 degrees, a single low beam module cannot meet this width requirement, so multiple low beam modules need to be stacked to form a part of the light pattern design to meet the brightness requirement. The other part is designed to be a widened light pattern to meet the widening requirement, where each module needs a different widening angle design, and finally superimposed to form a light pattern of more than 35 degrees. This embodiment is as follows Figure 6 As shown in the schematic diagram of the influence of different lens focal lengths of the same minimalist small-aperture low beam module system, the focal length of the low beam light emitting lens module 105, that is, the distance to the low beam auxiliary light type total reflection module 103 can be adjusted. For example, if the focal length L2 of module 2 is relatively small (35mm), the corresponding result light type 2 has a higher efficiency, a more scattered light type, and a smaller maximum value, which can be used to design a low beam widening light type. Conversely, if the focal length L1 of module 1 is large (50mm), the corresponding result light type 1 has a lower efficiency, a more concentrated light type, and a larger maximum value, which can be used to design a low beam bright spot light type.

[0109] Figure 6 middle, Figure 6 .1 is a schematic diagram of two low beam module systems with different lens focal lengths. Figure 6 .2 is Figure 6 .1 Schematic diagram of the light pattern formed by the two low beam module systems.

[0110] More specifically, Figure 7As shown in the optical principle diagram of the bright spot and widening design of the minimalist small-opening low-beam module system, the left and right positions of the focus of the low-beam light-emitting lens module 105 also affect the optical design. When the focus F1 is at the center position (module 1.1), the light pattern is centered (light pattern 1.1), which is used as the low-beam bright spot design; when the focus F2 deviates from the center position (module 2.1), the light pattern will also deviate from the center (light pattern 2.2), which is used as the low-beam widening design. Similarly, because the low-beam bright spot has a higher brightness requirement, the low-beam bright spot has a larger focal length (module 1.1) on the basis of being centered, and the light pattern is more concentrated (light pattern 1.1). On the contrary, if the low-beam widening design is used, the focal length is smaller (module 2.1), and the light pattern is more scattered (light pattern 2.1).

[0111] Figure 7 middle, Figure 7 .1 is a low beam module system with the focus at the center and the focus off the center. Figure 7 .2 is Figure 7 .1 Schematic diagram of the light pattern formed by the two low beam module systems.

[0112] More specifically, the low beam of this embodiment is as follows Figure 8 The optical performance diagram of the bright spot and widening design of the minimalist small aperture low beam module system is shown in the figure. Figure 8 .1 and Figure 8 .4 is the energy distribution diagram and uniform grayscale diagram of the near light spot. Figure 8 .2 and 8.5 are the energy distribution diagram and uniformity grayscale diagram of the low beam widening 1. Figure 8 .3 and 8.6 are the energy distribution diagram and uniformity grayscale diagram of low beam widening 2. In this embodiment, the left and right positions of the focus of the low beam emission lens module 105 are adjusted horizontally. When the focus is at the center, the center of the light pattern is at 0 degrees; when it is adjusted to the right by 3mm, the center of the widened light pattern shifts to the left by 10 degrees, and the left boundary of the light pattern reaches -25 degrees, which is low beam widening 1; when the focus shifts to the right by 5mm, the center of the widened light pattern shifts to the left by 20 degrees, and the left boundary of the light pattern reaches -35 degrees, which is low beam widening 2; the same design method is used for the light pattern on the right, which can meet the basic angle requirements of low beam widening. Multiple modules are combined to form the low beam light pattern, which is highly flexible and can meet different customer styling requirements and lighting requirements. Fig. 9 As shown, a signal light low-beam light source module is placed out of focus to realize the functions of position light, turn signal or daytime running light.

[0113] More specifically, the low beam three-zone detailed design is as follows Figure 5As shown, the three-zone light type areas E, F, and G are formed by the first three-zone area 1031, the second three-zone area 1032, and the third three-zone area 1033 of the boundary of the low-beam auxiliary light type total reflection module 103. The surface of the low-beam auxiliary light type total reflection module 103 can be designed according to requirements, and can be a plane, a free-form surface, etc. At the same time, the surface can be divided as a whole to make patterns, or it can be designed separately for special areas and other three-zone designs. The outer surface of the low-beam auxiliary light type total reflection module 103 is partially aluminum-plated to reduce light loss and improve optical efficiency. At the same time, part of the outer surface needs to increase leather grain to reduce stray light in the three zones. The three-zone requirement avoids designing on the lens, which improves the appearance consistency of the module.

[0114] Figure 5 middle, Figure 5 .1 is a schematic diagram showing the structure of the three-zone area of ​​the low beam auxiliary light type full reflection module. Figure 5 .2 is a schematic diagram highlighting the three-zone light pattern and the cut-off line light pattern formed by the three-zone area and the cut-off line area, Figure 5 .3 is a schematic diagram of the overall surface segmentation of the low beam auxiliary light type total reflection module to make patterns. Figure 5 .4 is a schematic diagram of the partial aluminum plating of the outer surface of the low beam auxiliary light type total reflection module.

[0115] This embodiment integrates the light incident surface, the total reflection surface and the light emitting surface into one part. This embodiment can realize an ultra-small opening module. The focus of the module of this embodiment is not limited to the left and right positions. The module of the embodiment has the particularity of a three-zone structure.

[0116] This embodiment optimizes the traditional low beam optical system and simplifies it into one part, which only has a light incident surface, a total reflection surface and a light exit surface, so as to realize the design of a very small opening module. The low beam optical system includes a low beam incident light lens module, a low beam main light type total reflection module, a low beam auxiliary light type total reflection module and a low beam light exit lens module, and is equipped with a low beam light source module to form the low beam optical system. The low beam main light type total reflection module realizes the cut-off line light type of the low beam, and the low beam auxiliary light type total reflection module realizes the requirements of the three zones of the regulations, and the low beam light type is finally formed by superposition. The low beam auxiliary light type total reflection module area increases the distance between the low beam light source module 101 and the low beam main light type total reflection module 102, reduces the thermal risk of the parts, and increases the focal length limit of the low beam main light type total reflection module. The simplified system is only about half of the traditional system, which greatly reduces the size of the optical system and improves the light exit efficiency. At the same time, the low beam incident light lens module improves the light input efficiency, making the overall efficiency of this system more than double that of the traditional optical system. The integrated design reduces the tolerance of parts, improves the stability of the optical system, is conducive to the design of small opening modules, and reduces the cost of the module. This low beam system module can realize the low beam bright spot light type, the low beam widening light type, and multiple matching combinations to form the low beam light type required by the target. It is flexible and can achieve different shapes. With software control, it can be used for welcoming, rhythmic and other lighting effects. At the same time, placing a signal light low beam light source module out of focus can realize the functions of position lights, turn signals or daytime running lights. If the signal light source module uses RGBLED, a colorful lighting visual effect can be achieved.

[0117] The present invention optimizes the traditional low-beam optical system and simplifies it into one part, which only has a light incident surface, a total reflection surface and a light emitting surface, so as to realize the design of a very small opening module.

[0118] The present invention can be configured to generate multiple light distributions, the types of which are different, and the type of each light distribution is any one of the following: low beam lighting, high beam lighting, adaptive low beam lighting, ADB high beam lighting, corner fog lamp lighting, urban road mode lighting, country road mode lighting, highway mode lighting, curve mode lighting, rain and fog mode lighting, position signal lights, turn signal lights, daytime running lights, welcome lights, ambient lights, etc.

[0119] The present invention can also be freely combined with each other according to various design requirements to finally realize a through-light.

[0120] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0121] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A small-aperture low-beam module system, characterized in that: include: A low beam lens body (1), wherein a low beam light source module (101), a low beam main light type total reflection module (102), a low beam auxiliary light type total reflection module (103) and a low beam light input lens module (104) are arranged at a light input end of the low beam lens body (1), and a low beam light output lens module (105) is arranged at a light output end of the low beam lens body (1); A cut-off line region is formed between the low-beam main light type total reflection module (102) and the low-beam auxiliary light type total reflection module (103); the low-beam main light type total reflection module (102) and the low-beam auxiliary light type total reflection module (103) are respectively located at the upper and lower sides of the cut-off line region; Light is emitted from the low-beam light source module (101), enters the low-beam lens body (1) through the low-beam light input lens module (104), and of the light entering the low-beam lens body (1), part of the light reaches the low-beam main light type total reflection module (102) for total reflection, and is emitted through the low-beam light output lens module (105), forming a low-beam main light type below the cut-off line area; another part of the light reaches the low-beam auxiliary light type total reflection module (103) for total reflection, and is emitted through the low-beam light output lens module (105), forming a three-zone light type above the cut-off line area.

2. The small-aperture low-beam module system according to claim 1, characterized in that: The cut-off line region comprises: a matte leather grain surface (1025) and a cut-off line structure; The low-beam main-light type total reflection module (102) and the low-beam auxiliary-light type total reflection module (103) are connected via the matte leather texture surface (1025), and the matte leather texture surface (1025) is used to disperse the light that would otherwise cause three-zone stray light to the outside of the module; The cut-off line structure is arranged on the matte leather texture surface (1025).

3. The small-aperture low-beam module system according to claim 1, characterized in that: The boundary of the low-beam main-light type total reflection module (102) comprises: a first cut-off line area (1021), a second cut-off line area (1022) and a third cut-off line area (1023) which are connected in sequence; The first cut-off line region (1021), the second cut-off line region (1022), and the third cut-off line region (1023) are arranged corresponding to the low-beam auxiliary light type total reflection module (103), and are connected to the low-beam auxiliary light type total reflection module (103); A cutoff inflection point (1024) is formed on the second cutoff region (1022), so the position of the cutoff inflection point (1024) is within ±5 degrees of the light emission angle of the low-beam light source module (101).

4. The small-aperture low-beam module system according to claim 2, characterized in that: The low-beam auxiliary light type total reflection module (103) comprises: a first three-zone area (1031), a second three-zone area (1032), and a third three-zone area (1033) which are connected in sequence; The first three-zone area (1031) is arranged corresponding to the first cut-off line area (1021), the second three-zone area (1032) is arranged corresponding to the second cut-off line area (1022), and the third three-zone area (1033) is arranged corresponding to the third cut-off line area (1023).

5. The small-aperture low-beam module system according to claim 2, characterized in that: The low-beam main-light type total reflection module (102) and the matte leather texture surface (1025) are located above the low-beam light incident lens module (104), and the light input direction of the low-beam light source module (101) is from bottom to top; The low-beam auxiliary light type total reflection module (103) is located on one side of the low-beam incident light lens module (104).

6. The small-aperture low-beam module system according to claim 1, characterized in that: The low-beam light emitting lens module (105) has two focal points: one focal point is located at a position where a low-beam main light pattern is formed, and the other focal point is located at a boundary of the low-beam auxiliary light pattern total reflection module (103).

7. The small-aperture low-beam module system according to claim 6, characterized in that: A signal light source module (106) is provided on the low beam lens body (1) at a defocused position corresponding to the low beam light output lens module (105), and light emitted by the signal light source module (106) enters the low beam lens body (1) through a signal light input lens module (107).

8. The small-aperture low-beam module system according to claim 1, characterized in that: The low beam lens body (1), the low beam light source module (101), the low beam main light type total reflection module (102), the low beam auxiliary light type total reflection module (103), the low beam incident light lens module (104) and the low beam output light lens module (105) are an integrally formed structure.

9. The small-aperture low-beam module system according to claim 5, characterized in that: The outer surface of the low-beam main-light type total reflection module (102) is plated with an aluminum layer; And / or, a pattern structure is provided on the matte leather texture surface (1025); And / or, the low beam auxiliary light type total reflection module (103) is a plane or a free-form surface; And / or, the low beam auxiliary light type total reflection module (103) is an integral segmented pattern structure; And / or, the outer surface of the low beam auxiliary light type total reflection module (103) is plated with an aluminum layer; And / or, the outer surface of the low beam auxiliary light type total reflection module (103) is provided with leather texture; And / or, a microstructure is provided on the surface of the low-beam light output lens module (105).

10. The small-aperture low-beam module system according to claim 1, characterized in that: The low-beam light source module (101) is any one of the following: a single chip, a multi-chip, a surface-mount LED, a laser light source, or an RGB light source; When the low-beam light source (101) module is a SMD LED, it is configured in any of the following ways: Method 1: The SMD LED is integrated on the PCBA board; Method 2: The SMD LED is integrated on the heat sink and connected to the PCBA board through metal wires; The material of the low beam lens body (1) is any one of the following: polycarbonate, polymethyl methacrylate, glass, and silicone.

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