CN219623858U - A lighting assembly, car light and vehicle for car light - Google Patents

Abstract

The utility model provides a lighting assembly for a car lamp, the car lamp and a car, and relates to the field of car lamps. The utility model provides an illumination assembly for a car lamp, which comprises a light source and a lens group, wherein a plurality of illumination areas are formed after light rays of the light source respectively pass through the lens group, the optical axis of the lens group deviates from the luminous center of the light source, so that at least part of the illumination areas have overlapping areas or edges are overlapped, and the lens group at least comprises a plurality of divergent lenses. By means of at least partial overlapping or edge overlapping of the illumination areas, a plurality of illumination areas can be output as an illumination light pattern which serves as illumination. Therefore, the illumination light shape has higher illumination value in the superposition area, and the illumination requirement of the high beam HV position or the low beam inflection point area can be met; meanwhile, the plurality of illumination areas form an illumination light shape, and the coverage area of the whole illumination light shape can meet the requirements of the illumination ranges of high beam and low beam.

Description

A lighting assembly, car light and vehicle for car light

Technical Field

The utility model relates to the field of automobile lamps, in particular to a lighting assembly for an automobile lamp, the automobile lamp and a vehicle.

Background

At present, with the development and the promotion of the car lamp technology, car lamp systems with high resolution are increasingly applied to car lamps due to the characteristics of illumination and road surface display. The functions of ADB (adaptive high beam system) high beam function, low beam AFS (adaptive headlamp system) function, pavement identifier display and the like can be realized through the high-resolution car lamp system.

The high-resolution car lamp system mostly adopts DLP technology (namely digital light processing is technology for realizing digital optical processing based on digital micromirror elements) or Micro LED technology, wherein DLP or Micro LEDs form images, and an imaging lens group projects the images onto a road surface to form an illumination area with uniform brightness and a certain range. And then, combining the requirements of the illumination of the car lamp on the illumination light shape, such as the requirements of illumination of a test point, the requirements of illumination gradient of a cut-off line and the like, and adjusting the formed image by the DLP or Micro LEDs to meet the requirements of the corresponding road on the illumination light shape.

Referring to fig. 1 to 2, since the high beam of the headlight illumination needs to be at the HV position (HV position is directly in front of the illumination direction) in the high beam screen illumination schematic diagram, the high beam needs to have the maximum brightness at the HV position, and the farther the high beam is from the vehicle, the weaker the brightness is.

When the passing light of the car light illumination approaches to the inflection point region of the HV position in the passing light screen illumination schematic diagram, the inflection point region corresponds to a farther road surface, so that a higher illumination value is required in the inflection point region, and the required illumination value gradually becomes smaller as the illumination distance is closer.

It is known that the illumination light shape with substantially uniform brightness is not well suited to the requirements of the lamp illumination light shape within a certain illumination range formed by the existing high resolution lamp system. In particular, in order to achieve the high beam maximum, it is necessary to adjust the brightness in the entire high beam illumination range to be close to the high beam maximum, and a high output luminous flux is required, and the illumination area cannot be excessively large. Whereas the low beam requires a larger illumination area, in particular in the width direction of the illumination area.

Therefore, the limitation of the illumination light shape formed by the existing high-resolution car lamp system can not reasonably solve the requirement on the road illumination distribution in the high beam and the low beam.

Disclosure of Invention

The utility model aims to provide a lighting assembly for a car lamp, the car lamp and a car, which can reasonably solve the requirement on road illumination distribution in high beam and low beam.

Embodiments of the present utility model are implemented as follows:

in one aspect, the present utility model provides a lighting assembly for a vehicle lamp, comprising: the light source comprises a light source and a lens group, wherein light rays of the light source respectively pass through the lens group to form a plurality of illumination areas, the optical axis of the lens group deviates from the luminous center of the light source, so that at least part of the illumination areas have overlapping areas or edges are overlapped, and the lens group at least comprises a plurality of divergent lenses.

Preferably, the number of the light sources is a plurality, and the plurality of the light sources are in one-to-one correspondence with the lens group.

Preferably, the light source is an integrally packaged MICRO LED; or the light source is a light source group comprising a plurality of LEDs.

Preferably, the lens group further includes a plurality of condensing lenses, the condensing lenses and the diverging lenses are in one-to-one correspondence, and the light emitted by the light source sequentially passes through the corresponding diverging lenses and the corresponding condensing lenses and then is emitted to form the illumination area.

Preferably, the lighting assembly further comprises a first bracket and a second bracket; the light source is arranged on the first bracket, and the lens group is arranged on the second bracket.

Preferably, the second bracket is provided with a mounting through hole, and the plurality of divergent lenses are arranged in the plurality of mounting through holes in a one-to-one correspondence.

Preferably, the second bracket comprises cavities respectively communicated with the plurality of mounting through holes, a light outlet is formed in one side, away from the mounting through holes, of the cavities, and the condensing lens is arranged in the cavities.

Preferably, the lighting assembly further comprises a cylindrical lens, and the cylindrical lens is arranged at the light outlet.

The utility model further provides a car lamp, which comprises the lighting assembly.

The utility model further provides a vehicle, which comprises the vehicle lamp.

The embodiment of the utility model has the beneficial effects that:

in the utility model, the light emitted by the light source can form a plurality of illumination areas after being refracted by the plurality of lens groups, and the optical axis of the lens groups deviates from the light emitting center of the light source, so that at least part of the illumination areas have overlapping areas or overlapped edges.

By means of at least partial overlapping or edge overlapping of the illumination areas, a plurality of illumination areas can be output as an illumination light pattern which serves as illumination. Therefore, the illumination light shape has higher illumination value in the superposition area, and the illumination requirement of the high beam HV position or the low beam inflection point area can be met; meanwhile, the plurality of illumination areas form an illumination light shape, and the coverage area of the whole illumination light shape can meet the requirements of high beam and low beam on the illumination distribution of the road surface.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the illuminance of a high beam screen with a high beam at HV position in the background art;

FIG. 2 is a diagram of the low beam screen illumination of the low beam in the inflection region in the background art;

fig. 3 is a schematic view of the structure of the illumination assembly in embodiment 1;

FIG. 4 is a schematic diagram showing the positions of a light source and a diverging lens, a converging lens and a cylindrical lens in the illumination assembly of embodiment 1;

FIG. 5 is a cross-sectional view of the illumination assembly of example 1;

FIG. 6 is a side cross-sectional view of the lighting assembly of example 1;

FIG. 7 is a schematic view of illuminance of a light-shaped screen in the first illumination region in embodiment 1;

FIG. 8 is a schematic diagram of illuminance of a light-shaped screen in the second illumination region in embodiment 1;

FIG. 9 is a schematic view of illumination of a light-shaped screen forming a light-shaped image after the superposition of FIGS. 7 and 8;

FIG. 10 is a diagram showing the illuminance of the low beam screen at the time of low beam in example 1;

FIG. 11 is a diagram of the low beam screen illumination of embodiment 1 with the light pattern image superimposed on FIG. 10;

FIG. 12 is a diagram showing the illuminance of a light pattern screen in which a dark area exists in the light pattern in example 1 (the blank position in the middle is the dark area);

FIG. 13 is a schematic view of the illuminance of a light pattern screen in example 1 superimposed with the dark areas of the light pattern in FIG. 12;

FIG. 14 is a schematic view of the illuminance of a light-shaped screen formed by the Micro LED system in example 1;

fig. 15 is a schematic diagram of the illuminance of a light pattern screen in example 1, in which the light pattern image is superimposed with the light pattern formed by the Micro LED system.

Icon: 100-an illumination assembly; 110-a light source; 111-a first light source; 112-a second light source; 121-a divergent lens; 122-a condenser lens; 123-a lenticular lens; 130-illumination light shape; 131-a first illumination area; 132-a second illumination region; 133-overlap region; 140-a first rack; 150-a second bracket; 151-mounting through holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

First embodiment

Referring to fig. 3-9, the present embodiment provides a lighting assembly 100 for a vehicle lamp or a vehicle.

A lighting assembly 100 for a vehicle lamp, comprising: the light source 110 and the lens group respectively form a plurality of illumination areas after the light rays of the light source 110 pass through the lens group, the optical axis of the lens group deviates from the light emitting center of the light source 110, so that at least part of the illumination areas have overlapping areas or overlapped edges, and the lens group at least comprises a plurality of divergent lenses 121.

In detail, when the illumination assembly 100 is operated, the light emitted from the light source 110 enters into a plurality of lens groups, is refracted by the divergent lens 121, and then is emitted to form a plurality of illumination areas, wherein the plurality of illumination areas can form an illumination light shape 130. Of the plurality of illumination areas forming the illumination pattern 130, there is a superimposed area or edge overlap of at least two illumination areas.

In some embodiments, the plurality of light sources 110 are in one-to-one correspondence with the plurality of diverging lenses 121. Wherein the light source 110 may be integrally packaged MICRO LEDs (MICRO light emitting diodes); or the light source 110 may also be a group of light sources 110 comprising a plurality of LEDs. In this embodiment, the light source 110 is an integrally packaged MICRO LED.

In some embodiments, the light source 110 may also be a light source 110 group including a plurality of LEDs.

In some embodiments, the lighting assembly 100 may further include a first bracket 140 and a second bracket 150; the light source 110 is disposed at the first bracket 140; the lens group is disposed on the second support 150. The first and second holders 140 and 150 may be connected to the fixed light source 110 and the lens group, respectively. The first and second brackets 140 and 150 may be positionally adjusted and fixedly connected according to the desired light source 110 and lens positions. For example, the first bracket 140 may be provided with a groove for clamping the second bracket 150, which is not limited by the present utility model, and other connection manners are also within the scope of the present utility model. The first and second holders 140 and 150 may also be connected to other mounting members to position the light source and the lens group at desired positions.

In some embodiments, each lens group may further include a condensing lens 122, where the condensing lenses 122 are in one-to-one correspondence with the diverging lenses 121, and the light emitted by the light source 110 sequentially passes through the corresponding diverging lenses 121 and the corresponding condensing lenses 122 to form an illumination area. The condensing lens 122 can condense the light emitted through the diverging lens 121.

In some embodiments, the plurality of condenser lenses 122 may be an integrated lens. In other embodiments, the plurality of condensing lenses 122 may be independent lenses, and each condensing lens 122 may be corresponding to the diverging lens 121.

In some embodiments, the second bracket 150 may be provided with mounting through holes 151, and the plurality of diverging lenses 121 are disposed in the plurality of mounting through holes 151 in a one-to-one correspondence. The mounting through hole 151 may protrude from the second bracket 150 to increase the axial length of the mounting through hole 151, so as to facilitate the accommodating and fixing of the diverging lens 121. The position of the mounting through hole 151 may be predetermined according to the positional relationship of the light source 110 and the diverging lens 121. In some variations, the mounting through hole 151 may also provide a receiving space capable of fine adjustment for the divergent lens 121, so as to adjust the position of the divergent lens 121.

In some embodiments, the second bracket 150 may include cavities respectively communicating with the mounting through holes 151, a light outlet is provided at a side of the cavity away from the mounting through holes 151, and the condensing lens 122 may be disposed in the cavity. This facilitates the attachment of the condenser lens 122 and the alignment of the condenser lens 122 and the divergent lens 121.

In some embodiments, the lighting assembly may further include a lenticular lens 123, and the lenticular lens 123 may be disposed at the light outlet of the second bracket 150. Thereby, the lenticular lens 123 can assist the light condensed by the condenser lens 122 to be irradiated to the illumination area.

In some embodiments, the diverging lens 121 may be a concave lens or a convex lens to facilitate refraction of light emitted by the light source 110; the condensing lens 122 may be a convex lens or a cylindrical lens to condense the light refracted by the diverging lens 121.

According to the above-described embodiment, the operating principle of the illumination assembly 100 for a vehicle lamp is:

as shown in fig. 4 to 6, when the illumination assembly 100 is in operation, light emitted from the light source 110 enters the plurality of diverging lenses 121, is refracted and diverged by the diverging lenses 121, is converged by the converging lenses 122, is refracted, and finally is emitted through the cylindrical lenses 123 to form an illumination area, wherein at least part of the illumination areas can be overlapped or edge-overlapped to form an illumination light shape 130. At least some of the illumination areas may be output as an illumination pattern 130 for illumination by way of partial overlap or edge overlap. Thus, the overlapping area 133 has a higher illuminance value, and can meet the illuminance requirement of the high beam HV position or the low beam inflection point area, and at the same time, the illumination areas which are not partially overlapped or edge-overlapped can meet the illumination requirement of the high beam and low beam high angle illumination areas without high illuminance.

Further, the control of the brightness of the illumination light pattern 130 may be achieved by switching the light source 110 on and off or brightness adjustment. In other embodiments, adjustment of the illuminance and range of the overlap region 133 is achieved by modulation of the light source 110 and/or positional adjustment of the lens group.

In some implementations, the number of light sources 110 may be two, and may be divided into a first light source 111 and a second light source 112. Wherein two light sources 110 are arranged side by side. In other embodiments, the two may be arranged side by side. Correspondingly, the structure within the second bracket 150 may be: the two diverging lenses 121 are respectively installed in the two installation through holes 151 of the second bracket 150, the two condensing lenses 122 are installed in the cavity of the second bracket 150, and the lenticular lens 123 is disposed at the light outlet of the second bracket 150. The first light source 111 and the second light source 112 correspond to the two diverging lenses 121, respectively, and are mounted together in the groove of the first bracket 140.

The light emitted by the first light source 111 sequentially passes through the divergent lens 121, the convergent lens 122 and the lenticular lens 123 to form a first illumination area 131; the light emitted from the second light source 112 sequentially passes through the diverging lens 121, the condensing lens 122 and the lenticular lens 123 to form a second illumination area 132.

As shown in fig. 5, the first light source 111 is relatively biased to the right of the main optical axis of the divergent lens 121, and a first illumination area 131 can be formed. And the first illumination area 131 is biased to the left in the light-shaped screen illumination schematic, as shown in fig. 7.

As shown in fig. 5, the second light source 112 is relatively biased to the left of the main optical axis of the divergent lens 121, enabling the formation of a second illumination area 132. And the second illumination area 132 is formed to be biased to the right in the light-shaped screen illuminance diagram as shown in fig. 8.

By determining the relative positions of the first light source 111 and the second light source 112 and the lens group, the first illumination region 131 and the second illumination region 132 form an illumination light shape 130 in which the superimposed region 133 becomes brighter, as shown in fig. 9.

Further, the brightness of each light source 110 may be controlled to achieve brightness adjustment of the illumination light shape 130.

In the low beam, a low beam screen illuminance illustration as shown in fig. 10 is displayed as a low beam light shape having a cutoff line. The first illumination area 131 and the second illumination area 132 are superimposed to form a final illumination light pattern 130, the final illumination light pattern 130 being displayed in the inflection point area of the HV position in the low-beam screen illumination pattern, as shown in fig. 11. The requirement that the inflection point area of the car lamp close to the HV position needs a higher illuminance value in the passing light is met.

At the time of the high beam, the lamp system forms a light shape after an ADB (adaptive high beam system) high beam function is activated, and after the light shape forms a dark area, as shown in fig. 12. The first illumination area 131 and the second illumination area 132 overlap to form a final illumination light shape 130, the final illumination light shape 130 overlapping with a dark area of the light shape, as shown in fig. 13. Therefore, the light shape control with higher resolution is realized in a dark area formed by the light shape, and the requirement for the maximum value of the high beam is met when the high beam is formed.

In a high resolution vehicle lamp system employing Micro LED system, the Micro LED system forms a light shape as shown in fig. 14. The first illumination area 131 and the second illumination area 132 are superimposed to form a final illumination light shape 130, which final illumination light shape 130 is superimposed with the light shape formed by the Micro LED system, as shown in fig. 15. Thereby, the brightness value of the light shape to the illuminated surface of the object is increased, namely the illumination value is increased; the illuminance range size of the illumination light shape 130 is also increased.

Second embodiment

The present embodiment provides an overall structure, a working principle, and an obtained technical effect of a lighting assembly for a vehicle lamp that are substantially the same as those of the first embodiment, except that:

in this embodiment, the number of the diverging lenses is three, specifically, the three diverging lenses are respectively disposed in the three mounting through holes of the second bracket, and the three condensing lenses are disposed in the cavity of the second bracket, and the cylindrical lens is disposed at the light outlet of the second bracket. The three light sources are respectively arranged in the grooves of the first bracket corresponding to the three divergent lenses.

In this embodiment, three light sources are arranged side by side. In other embodiments, the three light sources may be distributed in a triangle, and the three light sources are respectively disposed at the end points of the triangle. The divergent lenses are arranged in the same way as the three light sources.

The three diverging lenses are respectively formed into left, middle and right 3 light type images, and the left side illumination area, the right side illumination area and the right side illumination area are respectively deviated to the left side, and the left side illumination area, the right side illumination area and the middle illumination area are overlapped to output one illumination light shape for illumination, or the left side light shape graph, the middle side light shape graph and the right side light shape graph are partially overlapped and output one illumination light shape for illumination.

The requirements of the illumination light shape output by the car lamp on illumination brightness are met by controlling the sizes of the overlapped areas of the three illumination areas; meanwhile, the control of the illuminance range of the whole illumination light shape can be realized through the coverage areas of the three illumination areas, so that the requirement of the vehicle lamp on the illuminance distribution of the road surface is met.

Third embodiment

The embodiment provides a car lamp for illumination of a vehicle.

The lamp includes the lighting assembly for the lamp in the first embodiment.

The overlapping area or edge overlapping of at least part of the illumination areas can be realized by adjusting the position relation between the light source and the lens group, so that the overlapping area of the output illumination light shape becomes bright, and the requirement of the illumination light shape output by the car lamp on illumination brightness is met; meanwhile, the illumination light shapes formed by the plurality of illumination areas together enable the range of the output illumination light shapes to be enlarged, and therefore the requirement of the illumination light shapes on the size of the illumination range is met.

The embodiment also provides a vehicle comprising the vehicle lamp.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A lighting assembly for a vehicle lamp, comprising:

a light source; the method comprises the steps of,

the light of the light source respectively passes through the lens group to form a plurality of illumination areas, the optical axis of the lens group deviates from the luminous center of the light source, so that at least part of the illumination areas have overlapping areas or edges are overlapped, and the lens group at least comprises a plurality of divergent lenses.

2. A lighting assembly for a vehicle lamp as recited in claim 1, wherein said number of light sources is plural, and a plurality of said light sources is in one-to-one correspondence with said lens group.

3. A lighting assembly for a vehicle lamp as defined in claim 2, wherein said light source is an integrally packaged MICRO LED; or alternatively

The light source is a light source group comprising a plurality of LEDs.

4. The lighting assembly for a vehicle lamp of claim 1, wherein the lens group further comprises a plurality of condenser lenses, the plurality of condenser lenses are in one-to-one correspondence with the plurality of divergent lenses, and the light rays emitted from the light source sequentially pass through the corresponding divergent lenses and the corresponding condenser lenses and then are emitted to form the lighting area.

5. A lighting assembly for a vehicle lamp as recited in claim 4, further comprising a first bracket and a second bracket; the light source is arranged on the first bracket, and the lens group is arranged on the second bracket.

6. The lighting assembly for a vehicle lamp of claim 5, wherein the second bracket is provided with a mounting through hole, and a plurality of the diverging lenses are disposed in the mounting through holes in one-to-one correspondence.

7. The lighting assembly for a vehicle lamp according to claim 6, wherein the second bracket includes cavities respectively communicating with the plurality of mounting through holes, a light outlet is provided at a side of the cavity away from the mounting through holes, and the condenser lens is provided in the cavities.

8. The lighting assembly for a vehicle lamp of claim 7, further comprising a lenticular lens disposed at the light outlet.

9. A vehicle lamp comprising a lighting assembly as claimed in any one of claims 1 to 8.

10. A vehicle comprising the lamp of claim 9.