WO2021103755A1

WO2021103755A1 - Vehicle lamp module, vehicle headlamp, and vehicle

Info

Publication number: WO2021103755A1
Application number: PCT/CN2020/115659
Authority: WO
Inventors: 李辉; 仇智平; 陆剑清; 张大攀; 祝贺; 孙晓芬; 桑文慧; 李聪; 聂睿
Original assignee: 华域视觉科技(上海)有限公司
Priority date: 2019-11-26
Filing date: 2020-09-16
Publication date: 2021-06-03
Also published as: CN111735027A; JP2023501233A; JP7404528B2

Abstract

A vehicle lamp module, comprising a light source (1), a light condensing portion (2), and a light exiting component sequentially disposed in a light exiting direction. The light exiting component is an aspheric lens (3); the light condensing portion (2) comprises at least one light condensing element (21); the light source (1) corresponds to a corresponding light condensing element (21); light emitted by the light source (1) can be condensed by means of the light condensing element (21) and then directed to a light incident surface (31) of the aspheric lens (3), and exits from a light exiting surface (32) of the aspheric lens (3). Also disclosed are a vehicle headlamp and a vehicle. The vehicle lamp module has a simple structure, and can form a light distribution pattern having a uniform light form.

Description

Vehicle lamp module, vehicle headlight and vehicle

Cross-references to related applications

This application claims the rights and interests of the Chinese patent application 201911175135.0 filed on November 26, 2019, the content of which is incorporated herein by reference.

Technical field

The invention relates to a vehicle lighting device, in particular to a vehicle lamp module, and in addition, to a vehicle headlight and a vehicle.

Background technique

For night driving, the importance of car lighting systems, especially car headlights, is self-evident. In the high-speed driving of the car, the dazzling high beam may cause the driver to lose control of the car, and then cause unpredictable danger. Therefore, automobile headlights must not only provide the driver with a wide range of vision and good visual conditions, but also affect other road participants as little as possible, so as not to dazzle other road participants. With the development of technology, matrix LED headlights have become one of the directions for the future development of car lights. The light source of matrix LED headlights is composed of multiple LEDs. These LEDs are arranged in a certain way to form an array pattern. In the front view of vehicles and pedestrians, the matrix LED headlights can extinguish the LEDs in the corresponding areas to avoid the dazzling of pedestrians or oncoming drivers.

In the prior art, general matrix-type vehicle lamp modules use matrix-type light sources and light-concentrating elements corresponding to the light sources to solve the technical problem of high beams causing dazzling to the driver. The application date is April 13, 2018, and the application number is 201820529985.0. The Chinese utility model patent discloses an optical module and a car lamp. The optical module adopts a condenser including a plurality of light guides, and the light of each light guide The light-emitting ends are arranged in a one-to-one correspondence with each light source. The light-emitting ends converge together to form an arc-shaped light-emitting part. The condenser has a condensing effect on the light emitted by the light source, and makes the light emitted by the adjacent light sources on the light-emitting surface of the condenser There is a certain fusion, so that the connection between the light spots formed by the light from each light source is more uniform, but the structure of the concentrator is very complicated, and it is necessary to ensure the relative position accuracy between the light guides and the processing accuracy of the concentrator It is difficult to guarantee; and the installation structure of the concentrator is also very complicated, and the cumulative error of the installation is large, which will lead to low precision of the optical system of the optical module and affect the light shape effect of the vehicle lamp.

With the development of the automotive industry, matrix-type car lights not only require the realization of ADB adaptive high beam function, but also on this basis to further improve the uniformity of the car light shape, enhance the heat dissipation performance of the car lights, and reduce the weight of the car lights ,size.

In view of the above-mentioned shortcomings of the prior art, it is necessary to design a new type of vehicle lamp module.

Summary of the invention

The first technical problem to be solved by the present invention is to provide a vehicle lamp module, which has a simple structure and a uniform light shape.

The second technical problem to be solved by the present invention is to provide a vehicle headlamp which has a simple structure and a uniform light shape.

The third technical problem to be solved by the present invention is to provide a vehicle with uniform light shape and low cost.

In order to achieve the above objective, the first aspect of the present invention provides a vehicle lamp module, which includes a light source, a light-condensing part and a light-emitting element sequentially arranged along the light-emitting direction, the light-emitting element is an aspheric lens, and the light-concentrating part includes at least A condensing element, the light source corresponds to the corresponding one, the light emitted by the light source can be condensed by the condensing element and then directed to the light incident surface of the aspheric lens, and from the aspheric lens The light-emitting surface shoots out.

Preferably, the light-emitting surface of the aspheric lens is configured such that the central lateral section of the aspheric lens and the light-emitting surface of the aspheric lens intersect to form a central lateral section line, and the central lateral section line has a first curvature boundary Point and a second curvature demarcation point, the first curvature demarcation point is any point between the midpoint of the central transverse section line to the left end point, and the second curvature demarcation point is the center transverse section line of the center Point to any point between the right end point, the curvature from the first curvature boundary point to the second curvature boundary point of the central transverse section line is equal, and the curvature from the first curvature boundary point to the left end point of the central transverse section line is equal to The curvature from the second curvature dividing point of the central transverse section line to the right end point first increases and then decreases.

Preferably, the curvature of the left end point of the central transverse section line and/or the curvature of the right end point of the central transverse section line is equal to the curvature of the first curvature demarcation point to the second curvature demarcation point of the central transverse section line .

As a preferred structural form, the light-emitting surface of the aspheric lens is a curved surface that is convex forward, and the light-emitting surface of the aspheric lens is further configured such that any longitudinal section of the aspheric lens is in line with the non-spherical lens. The light-emitting surfaces of the spherical lens intersect to form a longitudinal section line, the longitudinal section line has a curvature change boundary point, the curvature change boundary point is any point between the midpoint of the longitudinal section line and the upper end point, the longitudinal section line The curvature of the curvature change boundary of the section line is equal to the lower end point, the curvature of the longitudinal section line is equal to the curvature change boundary point to the upper end point, and the curvature of the upper end point of the longitudinal section line is smaller than the lower end of the longitudinal section line The curvature of the point.

As another preferred structural form, the light-emitting surface of the aspheric lens is a curved surface convex forward, and the light-emitting surface of the aspheric lens is further configured such that any longitudinal section of the aspheric lens is The light-emitting surfaces of the aspheric lens intersect to form a longitudinal section line, the longitudinal section line has a curvature change boundary point, and the curvature change boundary point is any point between the midpoint and the upper end of the longitudinal section line. The curvature change boundary of the longitudinal section line has the same curvature to the lower end point, and the curvature of the longitudinal section line curvature change boundary point to the upper end point gradually decreases.

Preferably, the light incident surface of the aspheric lens protrudes backward along the optical axis direction of the aspheric lens.

Preferably, the light concentrating part includes a plurality of light concentrating elements, and the light concentrating elements can be arranged in a matrix with a single row and multiple columns or in a matrix arrangement with multiple rows and multiple columns.

More preferably, the light condensing element is a plano-convex lens, wherein the light incident surface of the light concentrating element is a flat surface, and the light exit surface of the light concentrating element is a curved surface convex forward.

Specifically, the vehicle lamp module further includes a mounting frame for installing the light-concentrating part, the mounting frame is provided with positioning pins and mounting holes, the mounting frame is provided with flanges around, and the light-concentrating part The part and the mounting frame are integrally formed or assembled and connected.

Preferably, the light source is arranged in front of the focal point of the condensing element.

More preferably, the light source is arranged on the focal plane of the aspheric lens.

A second aspect of the present invention provides a vehicle headlamp, including the vehicle light module according to any one of the technical solutions of the first aspect, and the vehicle light modules are arranged in a longitudinal, lateral, or oblique arrangement.

A third aspect of the present invention provides a vehicle including the vehicle headlamp described in the technical solution of the second aspect.

In the basic technical solution of the present invention, the light emitted by the light source is condensed by the condensing part and then emitted to the light-incident surface of the aspheric lens, and then emitted through the light-emitting surface of the aspheric lens. The condensing part is provided with at least one condensing element, Compared with the prior art concentrator that includes multiple light guides, not only the structure of the vehicle lamp module is simple, but the size and weight of the vehicle lamp module are smaller. In addition, the center of the aspheric lens of the present invention is The curvature of the edge continuously changes, which can change the spread angle of the light shape to obtain the desired light shape.

The other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments.

Description of the drawings

FIG. 1 is one of the structural schematic diagrams of an embodiment of the vehicle lamp module of the present invention;

2 is the second structural diagram of an embodiment of the vehicle lamp module of the present invention;

Figure 3 is a schematic view of the central longitudinal section of Figure 2;

Fig. 4 is a schematic diagram of the central transverse section of Fig. 2;

Fig. 5 is one of the structural schematic diagrams of an embodiment of the light-concentrating part of the present invention;

Fig. 6 is a partial enlarged view of A in Fig. 5;

FIG. 7 is the second structural diagram of an embodiment of the light-concentrating part of the present invention;

Fig. 8 is a schematic view of the longitudinal section of Fig. 5;

FIG. 9 is a schematic diagram of the transverse cross-section of FIG. 5;

Fig. 10 is a central longitudinal sectional view of an embodiment of the aspheric lens of the present invention;

11 is a schematic diagram of a central transverse cross-section of an embodiment of the aspheric lens of the present invention;

FIG. 12 is a schematic structural diagram of another embodiment of the aspheric lens of the present invention;

Fig. 13 is a schematic diagram of a light shape projected by a car lamp module in the prior art;

14 is a schematic diagram of the light shape projected by the vehicle lamp module of the present invention.

Description of Reference Signs

1 Light source

2 Concentrating Department 21 Concentrating Components

3 Aspherical lens 31 Glossy surface

32 Shining side 33 Vertical line cut

34 Central horizontal line cut 35 Optical axis

4 Installation frame 41 positioning pin

42 Installation hole 43 Flanging

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or Integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.

It should be understood that along the direction of light emission, "front" refers to the end where the aspheric lens 3 is located, "rear" refers to the end where the light source 1 is located, and "up" refers to the upper side of the light emission direction when the car light module is normally installed , "Down" refers to the bottom of the light emission direction when the car light module is normally installed, "Left" refers to the left side of the light emission direction when the car light module is normally installed, and "right" means the car light module is normal When installed, along the right side of the light emission direction, the “longitudinal section” is any section parallel to the optical axis 35 of the aspheric lens 3 and extending vertically from the upper edge to the lower edge of the aspheric lens 3. “Longitudinal section line” 33" is the curve formed by the intersection of the longitudinal section and the light-emitting surface 32 of the aspheric lens 3, the "transverse section" is perpendicular to the longitudinal section, and the "transverse section line" is the transverse section intersecting the light-emitting surface 32 of the aspheric lens 3. The curve formed, the "central longitudinal section" is the longitudinal section through the optical axis 35 of the aspheric lens 3, the "central transverse section" is the transverse section through the optical axis 35 of the aspheric lens 3, and the "central longitudinal section" is the central longitudinal section The curve formed by intersecting the light exit surface 32 of the aspheric lens 3, the "central transverse section line 34" is the curve formed by the intersection of the central transverse section and the light exit surface 32 of the aspheric lens 3, and the "midpoint of the central transverse section line 34" is The intersection of the central transverse section line 34 and the optical axis 35, where the optical axis 35 is an axis that passes through the focal point of the aspheric lens 3 and extends in the front-rear direction. The terminology is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore It cannot be understood as a limitation to the present invention.

1 to 4, the vehicle lamp module in the basic solution of the present invention includes a light source 1, a light condensing part 2, and a light emitting element sequentially arranged along the emission direction of the light source 1, wherein the light source 1 may be an LED light-emitting chip, an OLED A light-emitting chip or a light-emitting chip based on a laser light source; the condensing part 2 may include at least one condensing element 21, each concentrating element 21 corresponds to a light source 1 behind it, and the light-emitting element adopts an aspheric lens 3. The divergent light emitted by the light source 1 is condensed by the condensing element 21 and then directed to the light incident surface 31 of the aspheric lens 3, and is emitted from the light exit surface 32 of the aspheric lens 3. By adjusting the surface curvature of the light-emitting surface 32 of the aspheric lens 3, the refractive power of the aspheric lens 3 can be changed, thereby projecting the desired high beam light distribution pattern on the light screen. When the condensing part 2 includes only one condensing element 21, the vehicle lamp module can realize the basic high beam function and obtain a high beam shape in compliance with regulations. When the concentrating part 2 includes multiple concentrating elements 21, The corresponding light source 1 behind each condensing element 21 is individually addressed, and the high-beam illumination area is subdivided into multiple illumination areas. When the vehicle-mounted sensor system detects the incoming vehicle in the opposite lane, the light source 1 in the corresponding area is turned off , It effectively prevents the dazzling of high beams, and has a good lighting effect in other areas of the road, realizing the function of adaptive high beams.

Preferably, the central transverse section of the aspheric lens 3 intersects with the light-emitting surface 32 of the aspheric lens 3 to form a central transverse section line 34, and the central transverse section line 34 has a first curvature demarcation point and a second curvature demarcation point The first curvature demarcation point is any point between the midpoint of the central transverse section line 34 and the left end point, and the second curvature demarcation point is any point between the midpoint of the central transverse section line 34 and the right end point, the first The positions of the curvature demarcation point and the second curvature demarcation point can be set symmetrically, or adjusted according to the desired light shape, and set asymmetrically, or as shown in Figure 11, both are set on the midpoint of the central transverse section line 34 . For ease of description, the curve from the first curvature dividing point to the second curvature dividing point of the central transverse section line 34 is called the middle curve, and the curve from the first curvature dividing point to the left end point of the central transverse section line 34 is called Is the left curve, the curve from the second curvature dividing point of the central transverse section line 34 to the right end point is called the right curve, the curvature of the middle curve is equal, the curvature of the left curve and the curve of the right curve The curvatures all change according to the law of first increasing and then decreasing along the direction away from the optical axis 35. Preferably, the curvature can be reduced to be equal to the curvature of the middle curve. More vividly, in order to facilitate the description of the curvature change of the light-emitting surface 32 of the aspheric lens 3 of the present invention, a virtual spherical lens is constructed based on the aspheric lens 3, and the spherical lens has a constant curvature from the center to the edge of the lens. The curvature of the center of the light-emitting surface of the spherical lens is the same as the curvature of the center of the light-emitting surface 32 of the aspheric lens 3, as shown in FIGS. 10 and 11, the solid line in the figure is the center longitudinal section of the aspheric lens 3. The line 33 or the central transverse section line 34, the dashed line is the longitudinal section line or the transverse section line at the corresponding position of the spherical lens. Compared with the conventional spherical lens, the curve of the middle curve of the central transverse section line 34 of the aspheric lens 3 and the middle curve of the transverse section line at the corresponding position of the spherical lens have the same curvature change rule, and the center of the aspheric lens 3 The curvatures of the left and right curves of the transverse section line 34 are both greater than the curvatures of the left and right sections of the transverse section line at the corresponding positions of the spherical lens, so the light rays on the left and right of the aspheric lens 3 The exit direction exits in the direction close to the optical axis 35; because the curvature of the left and right curves of the central transverse section line 34 of the aspheric lens 3 first increases and then decreases in the direction away from the optical axis 35, the aspheric lens The amplitude of the exiting light rays from the left and right parts of the lens 3 close to the optical axis 35 first increases and then decreases, that is, when the curvature increases, the light has a tendency to gradually project toward the direction close to the optical axis 35, and when the curvature decreases, the light is directed toward the optical axis 35. The projection in the direction close to the optical axis 35 gradually projects in the direction away from the optical axis 35. The above-mentioned law of curvature change of the central transverse section line 34 makes the exiting light in the left and right directions of the light exit surface of the aspheric lens 3 as a whole to achieve the effect of high brightness in the central region, blurred boundaries between the light spots, and improved uniformity of light shape.

Further preferably, referring to FIG. 10, any longitudinal section of the aspheric lens 3 intersects with the light-emitting surface 32 of the aspheric lens 3 to form a longitudinal section line 33, and the longitudinal section line 33 has a curvature change boundary point. The change demarcation point can be any point from the midpoint to the upper end of the longitudinal section line 33, and the position of the curvature change demarcation point can be adjusted according to the desired light shape. For ease of description, the curve from the curvature boundary of the longitudinal section line 33 to the upper end point is called the upper curve, and the curve from the curvature boundary point of the longitudinal section line 33 to the lower end point is called the middle-lower curve. As a preferred structural form, the curvatures of the middle and lower curves of the longitudinal section line 33 are equal, the curvatures of the upper curve of the longitudinal section line 33 are equal, and the curvature of the upper end point of the longitudinal section line 33 is smaller than the curvature of the upper end of the longitudinal section line 33. The curvature of the lower end of the longitudinal section line 33; as another preferred structural form, the curvatures of the middle and lower curves of the longitudinal section line 33 are equal, and the curvature of the upper curve of the longitudinal section line 33 is along the distance away from the optical axis 35 The direction gradually becomes smaller. More vividly, compared with the traditional spherical lens, the change rule of the middle and lower part of any longitudinal section line 33 of the aspheric lens 3 is the same as that of the middle and lower part of the longitudinal section line at the corresponding position of the spherical lens. The curvature of the upper curve of the longitudinal section line 33 of the lens 3 is smaller than the curvature of the upper curve of the longitudinal section line at the corresponding position of the spherical lens. If a traditional spherical lens is used to project light, the light is basically parallel to the direction of the optical axis 35 of the spherical lens, and the resulting high beam shape is shown in Figure 13. The high beam is symmetrically distributed in the upper and lower vicinity of the horizontal 0 degree line. , Does not meet the regulatory requirements of the high beam light shape; refer to Figure 14, if the aspheric lens 3 is used to project light, the same light from the upper curve of the longitudinal section line 33 of the aspheric lens 3 is compared to the longitudinal section of the spherical lens The upper part of the line exits in a curved line, and its exit direction is further away from the optical axis 35. Most of the high beam light shape formed is above the horizontal 0 degree line and has a large upward spread angle. Its light shape range meets the requirements of the high beam light shape regulations.

Preferably, the aspheric lens 3 is a biconvex lens, and its light incident surface 31 is convex backward along the optical axis 35 of the aspheric lens 3, so that the focal point formed when sunlight irradiates the aspheric lens 3 It is closer to the aspheric lens 3 and far away from the bezel, so as to avoid burning of the bezel. Of course, the aspheric lens 3 may also be a plano-convex lens, a meniscus lens, or the like.

The aspheric lens in the preferred embodiment of the present invention is based on a spherical lens. The light-emitting surface 32 of the aspheric lens 3 is configured such that the curvature of the middle curve of the central transverse section line 34 is equal to that of the transverse section line at the corresponding position of the spherical lens. The curvatures are equal. The curvature of the left curve of the central transverse section line 34 of the aspheric lens 3 and the curvature of the right section of the central transverse section line 34 first increase in the direction away from the optical axis 35 and then decrease and decrease to It is equal to the curvature of the middle curve, that is, the left end point coincides with the corresponding left end point of the spherical lens, and the right end point coincides with the corresponding right end point of the spherical lens; The curvature is equal to the curvature of the spherical lens, and the curvature of the upper curve of the longitudinal section line 33 of the aspheric lens 3 gradually decreases in the direction away from the optical axis 35. For the aspheric lens 3 in the preferred embodiment of the present invention, the light-emitting surface 32 of the aspheric lens 3 can be constructed in the following manner: the center longitudinal section of the aspheric lens 3 is taken as the contour line, and the center of the aspheric lens 3 The transverse section line 34 is used as a guide line to sweep to form a curved surface, or the central transverse section line 34 of the aspheric lens 3 is divided into a number of sub-line segments to pass the longitudinal section line of the aspheric lens 3 at the dividing point of each sub-line segment 33 is used as the contour line, and the corresponding line segment of the central transverse section line 34 is used as the guide line to sweep. Several sweeping surfaces are connected to form the light-emitting surface 32. In this way, the light-emitting surface 32 can be divided into several sweeping surfaces. During the design of the surface 32, it is convenient to adjust the parameters of each sweep surface to fine-tune the formed light shape. In this form, the longitudinal section line 33 as the contour line includes several, and the upper curve of the longitudinal section line 33 Under the condition that the curvature of the longitudinal section line is smaller than the curvature of the longitudinal section line at the corresponding position of the spherical lens, the curvature of the upper curve of each longitudinal section line 33 can be different, and the position of the dividing point of the curvature of each longitudinal section line 33 can also be based on the desired light shape Make adjustments.

Under the structure of the aspheric lens 3 in the preferred embodiment of the present invention, a light source 1 is provided at the focal point of the aspheric lens 3. Combining the light emitted by the light source 1 to describe the refraction law of the aspheric lens 3 more vividly 10, since the curvatures of the middle and lower curves of the longitudinal section line 33 of the aspheric lens 3 are equal, the light L1 refracted by the middle and lower parts of the light exit surface 32 of the aspheric lens 3 and the optical axis 35 of the aspheric lens 3 The direction is approximately parallel; since the curvature of the upper curve of the longitudinal section line 33 of the light exit surface 32 of the aspheric lens 3 gradually decreases in the direction away from the optical axis 35, the light refracted by the upper part of the light exit surface 32 of the aspheric lens 3 L2 emits obliquely upward with respect to the direction of the optical axis 35; referring to FIG. 11, since the first and second curvature demarcation points of the central transverse section line 34 are both set at the midpoint of the central transverse section line 34, and the center transverse The curvatures of the left and right curves of the section line 34 first increase and then decrease relative to the midpoint of the central transverse section line 34 in the direction away from the optical axis 35. Therefore, the curvature of the position where the refraction point of L3 is located is greater than The curvature of the midpoint position, the ray L3 exits in the direction close to the optical axis 35; because the curvature of the refraction point of the ray L4 is greater than the curvature of the refraction point of the ray L3, the ray L4 is closer to the light than the ray L3 The direction of the axis 35 exits; since the curvature of the position where the refraction point of the ray L5 is located is less than the curvature of the position where the refraction point of the ray L4 is located, the ray L5 exits in a direction away from the optical axis 35 compared to the ray L4; due to the refraction point of the ray L6 The curvature of the location is less than the curvature of the refraction point of the light L5. Therefore, the light L6 exits farther away from the optical axis 35 than the light L5, that is, it exits in a direction substantially parallel to the optical axis 35. In this way, an aspheric lens 3 The received light can be diffused upward and projected to form a brighter and more uniform light shape in the middle. Although the optical path diagrams of FIGS. 10 and 11 show the light path from the light source 1 directly to the aspheric lens 3, and the light is not condensed by the condensing element 21, the light emitted by the light source 1 is condensed by the condensing element 21 and then emitted to the aspheric lens. The light of 3 also follows the above-mentioned law of refraction. When the condensing part 2 includes a row of condensing elements 21, correspondingly, there is a light source 1 behind each condensing element 21, and the light emitted by each light source 1 is condensed. After the elements 21 are converged, the light rays directed to the aspheric lens 3 also follow the above-mentioned refraction law. In this way, through the aspheric lens 3, the boundary between the various spots can be blurred, and the high-uniformity high beam light shape can be formed. Most of the high beam light shape is located above the horizontal 0 degree line and the upward diffusion angle is large.

Further preferably, referring to FIGS. 10 to 12, the aspheric lens 3 has a light-emitting surface 31 and a light-incident surface 32. The light-incident surface 32 is an aspheric surface and the surface may be provided with a vertical strip structure, a horizontal strip structure or a grid. The shape structure further diffuses the light. More preferably, the aspheric lens 3 is a double-convex lens, and its light incident surface 31 is convex backward along the optical axis 35 of the aspheric lens 3, so that the sunlight is focused when the aspheric lens 3 is irradiated The point is closer to the aspheric lens 3 and far away from the bezel, so as to avoid burning of the bezel. Of course, the aspheric lens 3 may also be a plano-convex lens, a meniscus lens, or the like.

Preferably, referring to FIGS. 5 and 6, the light concentrating part 2 may include a plurality of light concentrating elements 21, and the light concentrating elements 21 can be arranged in a single row and multiple columns in a matrix arrangement or multiple rows and multiple columns in a matrix arrangement. , The light source 1 corresponding to the rear of each condensing element 21 is individually addressed, and the high-beam illumination area is subdivided into multiple illumination areas. When the on-board sensor system detects the oncoming car on the opposite side, the light source 1 in the corresponding area is turned off. Realize the adaptive high beam function.

Preferably, referring to FIGS. 8 and 9, the condensing element 21 is a plano-convex lens, wherein the light-incident surface of the condensing element 21 is a flat surface, and the light-emitting surface is a curved surface convex forward. Of course, the condensing element 21 can also be a plano-convex, double-convex, concave-convex or concave-planar lens. The condensing element 21 is preferably a plano-convex lens. Compared with the prior art concentrator with a condenser cup structure to condense light, the condensing element 21 has a simple structure and high luminous efficiency; under the same light utilization rate, The distance between the light source 1 and the light-incident surface of the condensing element 21 can be appropriately increased to improve the heat dissipation effect of the vehicle lamp module. The light source 1 is located 0.1mm to 5mm behind the light-incident surface of the condensing element 21, and the distance is preferably 0.5 mm; and compared to the light-incident surface of the light-incident element 21, the light-incident surface of the light-incident element 21 adopts a flat surface, the light incident on the light-incident surface is not easy to be totally reflected, which further improves the light efficiency.

Specifically, referring to FIG. 7, the vehicle light module of the present invention further includes a mounting frame 4 for installing the condensing part 2, and the mounting frame 4 is provided with a positioning pin 41 and a mounting hole 42 to connect the concentrating part 2 It is positioned and installed on other parts, such as a radiator; flanges 43 are arranged around the mounting frame 4 to enhance the strength of the mounting frame 4; the light-concentrating part 2 and the mounting frame 4 can be integrally formed or assembled and connected.

Specifically, the light source 1 is arranged in front of the focal point of the condensing element 21, and the distance is preferably 0.5 mm. Compared with the light source 1 being arranged at the focal point of the condensing element 21, the light will be refracted by the light-emitting surface of the condensing element 21. It spreads around and is refracted by the aspheric lens 3 to help form the final high beam light shape, and the light source 1 is arranged in front of the focal point of the condensing element 21 to further improve the light efficiency.

More specifically, the light source 1 is arranged on the focal plane of the aspheric lens 3 to make the light distribution pattern projected on the light screen clearer.

The vehicle lamp module in the preferred embodiment of the present invention includes a light source 1, a light condensing part 2, and a light emitting element sequentially arranged along the light emitting direction, wherein the light concentrating part 2 includes a row of light concentrating elements 21 distributed in a matrix. The condensing element 21 is a plano-convex lens, and the light source 1 is arranged behind the concentrating element 21 and corresponds to each concentrating element 21 one-to-one; the light-emitting element is the aspheric lens 3 in the above-mentioned preferred embodiment. The car light module also includes a mounting frame 4 for installing the light-concentrating part 2. The mounting frame 4 is provided with positioning pins 41 and mounting holes 42 to connect with components such as radiators, and flanges are provided around the mounting frame 4 43 In order to enhance the strength of the mounting frame 4, the concentrating part 2 and the mounting frame 4 are assembled and connected, or the concentrating part 2 and the mounting frame 4 are directly integrally formed. When the vehicle lamp module is installed, the light source 1 can be installed 0.5 mm in front of the focal point of the condensing element 21. Turn on the light source 1, the light emitted by the light source 1 is condensed by the condenser 2 and then directed to the aspheric lens 3. The aspheric lens 3 diffuses the received light upward and projects it to form a brighter and more uniform light shape in the middle. The corresponding light source 1 behind each condensing element 21 of the car lamp module is individually addressed, and the high-beam lighting area is subdivided into multiple lighting areas. When the on-board sensor system detects the incoming vehicle in the opposite lane, the corresponding area The light source 1 is turned off, which effectively prevents the dazzling of high beams, and has a good lighting effect in other areas of the road, realizing the function of adaptive high beams. The car lamp module in the preferred embodiment of the present invention can not only realize the function of adaptive high beam, but also adopts the condensing element 21 as the condensing part 2. Compared with the concentrator in the prior art, the light effect is better. High, small footprint, simple structure, small size and light weight. The condensing element 21 and the mounting frame are integrally formed, which can further improve the installation accuracy of the car light module. When dimming, only the condensing part 2 and the non-condensing part 2 need to be adjusted. The relative position of the spherical lens 3 is sufficient, thereby improving the optical accuracy of the lamp module, and using the aspheric lens 3 whose curvature of the light-emitting surface 32 is changed as the light-emitting element, can form a central area with higher brightness and higher uniformity. The high beam light shape, further, by adjusting the curvature of the light exit surface 32 of the aspheric lens 3, light shapes of various shapes can be flexibly obtained.

The embodiment of the vehicle headlight of the present invention includes at least one vehicle light module of any one of the above technical solutions, and the vehicle light module may be distributed vertically, horizontally, or in an oblique arrangement. The embodiments of the vehicle headlamp of the present invention may include the lamp modules described in all the above embodiments, and therefore at least have all the beneficial effects brought by the embodiments of the above lamp modules.

The embodiments of the vehicle of the present invention may include the vehicle headlamps described in the foregoing embodiments, and therefore have at least all the beneficial effects brought about by the foregoing embodiments of the vehicle headlamps.

The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including individual specific technical features combined in any suitable manner. In order to avoid unnecessary repetition, various possible combinations are not described separately in the present invention. However, these simple modifications and combinations should also be regarded as the contents disclosed in the present invention, and all belong to the protection scope of the present invention.

Claims

A vehicle lamp module, characterized in that it comprises a light source (1), a light condensing part (2) and a light emitting element which are sequentially arranged along a light emitting direction, the light emitting element is an aspheric lens (3), and the light condensing part (2) It includes at least one condensing element (21), the light source (1) corresponds to the corresponding condensing element (21), and the light emitted by the light source (1) can pass through the condensing element (21). ) Is converged and shot toward the light-incident surface (31) of the aspheric lens (3), and emitted from the light-emitting surface (32) of the aspheric lens (3), and the light-emitting surface of the aspheric lens (3) (32) It is configured such that the central transverse section of the aspheric lens (3) and the light-emitting surface (32) of the aspheric lens (3) intersect to form a central transverse section line (34), and the central transverse section line ( 34) It has a first curvature demarcation point and a second curvature demarcation point, the first curvature demarcation point is any point between the midpoint of the central transverse section line (34) to the left end point, and the second curvature demarcation point The point is any point between the midpoint of the central transverse section line (34) and the right end point, and the curvature of the first curvature boundary point to the second curvature boundary point of the central transverse section line (34) is equal, the The curvature from the first curvature demarcation point of the central transverse section line (34) to the left end point and the curvature from the second curvature demarcation point of the central transverse section line (34) to the right end point first increase and then decrease.
The vehicle lamp module according to claim 1, wherein the curvature of the left end of the central transverse section line (34) and/or the curvature of the right end of the central transverse section line (34) is the same as the curvature of the right end of the central transverse section line (34). The curvatures from the first curvature demarcation point to the second curvature demarcation point of the central transverse section line (34) are equal.
The vehicle lamp module according to claim 2, wherein the light-emitting surface (32) of the aspheric lens (3) is a curved surface convex forward, and the light-emitting surface (32) of the aspheric lens (3) is 32) It is further configured such that any longitudinal section of the aspheric lens (3) intersects the light-emitting surface (32) of the aspheric lens (3) to form a longitudinal section line (33), and the longitudinal section line ( 33) has a curvature change boundary point, the curvature change boundary point is any point between the midpoint to the upper end of the longitudinal section line (33), and the curvature change boundary point of the longitudinal section line (33) is to the lower end The curvatures of the points are equal, the curvature of the curvature change boundary of the longitudinal section line (33) is equal to the upper end point, and the curvature of the upper end point of the longitudinal section line (33) is smaller than the lower end of the longitudinal section line (33) The curvature of the point.
The vehicle lamp module according to claim 2, wherein the light-emitting surface (32) of the aspheric lens (3) is a curved surface convex forward, and the light-emitting surface (32) of the aspheric lens (3) is 32) It is further configured such that any longitudinal section of the aspheric lens (3) intersects the light-emitting surface (32) of the aspheric lens (3) to form a longitudinal section line (33), and the longitudinal section line ( 33) has a curvature change boundary point, the curvature change boundary point is any point between the midpoint to the upper end of the longitudinal section line (33), and the curvature change boundary point of the longitudinal section line (33) is to the lower end The curvatures of the points are equal, and the curvature of the longitudinal section line (33) is gradually reduced from the boundary point of the curvature change to the upper end point.
The vehicle lamp module according to any one of claims 1 to 4, wherein the light incident surface (31) of the aspheric lens (3) is along the optical axis ( 35) The direction protrudes backward.
The vehicle lamp module according to any one of claims 1 to 4, characterized in that, the condensing part (2) comprises a plurality of concentrating elements (21), and the concentrating element (21) can be single Multi-row matrix arrangement or multi-row multi-column matrix arrangement.
The vehicle lamp module according to any one of claims 1 to 4, wherein the condensing element (21) is a plano-convex lens, wherein the light incident surface of the condensing element (21) is a plane , The light-emitting surface of the light-concentrating element (21) is a curved surface protruding forward.
The vehicle lamp module according to any one of claims 1 to 4, further comprising a mounting frame (4) for installing the light-concentrating part (2), and the mounting frame (4) is A positioning pin (41) and a mounting hole (42) are provided, a flange (43) is provided around the mounting frame (4), and the condensing part (2) and the mounting frame (4) are integrally formed or assembled connection.
The vehicle lamp module according to any one of claims 1 to 4, characterized in that the light source (1) is arranged in front of the focal point of the condensing element (21).
The vehicle lamp module according to any one of claims 1 to 4, wherein the light source (1) is arranged on the focal plane of the aspheric lens (3).
A vehicle headlamp, characterized by comprising at least one vehicle light module according to any one of claims 1 to 10, the vehicle light modules being arranged in a longitudinal, lateral, or oblique arrangement.
A vehicle characterized by comprising the vehicle headlamp according to claim 11.