CN115183195A

CN115183195A - Lens system and car light module system

Info

Publication number: CN115183195A
Application number: CN202210570830.2A
Authority: CN
Inventors: 蓝尚平
Original assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Current assignee: Magneti Marelli Automotive Components Wuhu Co Ltd
Priority date: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-10-14

Abstract

The invention provides a lens system and a car light module system, wherein a light source is arranged at the focus position of a light inlet end of a lens, and a projection lens is integrally formed on the lens; the lens comprises a lens light incident surface and a lens body, and the projection lens comprises a projection lens body and a projection lens light emergent surface; the projection lens body is integrally formed on the lens body, the lens light inlet surface is arranged on a side wall of the lens body far away from the projection lens body, and the projection lens light outlet surface is arranged on a side wall of the lens body far away from the lens body. The invention reduces the size of the lens system through the integrated design, increases the size flexibility, and the car lamp module group formed by a plurality of lens systems has more various shapes and more flexible arrangement, and the space limitation is improved.

Description

Lens system and car light module system

Technical Field

The invention relates to the technical field of automobile lamps, in particular to a lens system and an automobile lamp module system, and particularly relates to an ultrahigh-integration automobile lamp module system with an extremely narrow opening.

Background

The traditional car light distance and near light module is in a double-function or two single-function separated module form with a larger opening, and is provided with one light-emitting unit or two light-emitting units in appearance modeling, so that the modeling is single, and the variability is low. For this reason, in the prior art, there is a lighting form of a vehicle lamp with a high-low beam function formed by combining a plurality of small units, and the combination form of these small module units can bring about more diversified modeling arrangements, so that the appearance of the vehicle lamp is not changed any more.

However, the light efficiency of a single high and low beam module unit is low, a vehicle lamp cut-off line COL needs to be formed by a substantial light barrier, if the light efficiency needs to be improved, a metal film needs to be plated on the surface of the light barrier, in addition, in the prior art, a projection lens is an indispensable part, the number of parts is inevitably increased due to the arrangement of the projection lens, the number of parts is increased from the aspect of structural design, the assembly is complex, the labor and assembly work are increased, the cost is increased, the difficulty in installation and adjustment is increased, the overall structure is complex, the adaptability is greatly reduced, and from the aspect of optical angle, the projection lens can invert light and images passing through the projection lens.

Disclosure of Invention

In view of the defects in the prior art, the present invention provides a lens system and a lamp module system.

The invention provides a lens system, which comprises a light source, a lens and a projection lens, wherein the light source is arranged at the focal position of a light inlet end of the lens, and the projection lens is integrally formed on the lens;

the lens comprises a lens light incident surface and a lens body, and the projection lens comprises a projection lens body and a projection lens light emergent surface; the projection lens body is integrally formed on the lens body, the lens light-in surface is arranged on one side wall of the lens body far away from the projection lens body, and the projection lens light-out surface is arranged on one side wall of the lens body far away from the lens body;

the light source emits light rays, the light rays reach the light incidence surface of the light distribution lens, and the light rays pass through the light incidence surface of the light distribution lens and then sequentially pass through the projection lens body and the light emergence surface of the projection lens to be emitted.

Preferably, the lens further comprises a lens side surface and a primary light distribution surface;

the side surfaces of the lens are arranged on two opposite side walls of the lens body, and the side surfaces of the lens are positioned between the light incident surface of the lens and the light emergent surface of the projection lens;

the primary light distribution surface is arranged on the lens body and is positioned between the light incident surface of the lens and the side surface of the lens;

the light source emits light rays, the light rays reach the light incident surface of the light distribution lens, the light rays reach the primary light distribution surface through the light incident surface of the light distribution lens, and the light rays are totally reflected by the primary light distribution surface and then are emitted out through the light emitting surface of the projection lens.

Preferably, the lens further comprises a cut-off line structure, the cut-off line structure is arranged on the lens body, and the cut-off line structure is arranged at a focus of the vehicle lamp module system where the lens system is located.

Preferably, the cut-off line structure has a step-like structure.

Preferably, the stepped structure includes a first plane, an inclined plane and a second plane, which are sequentially connected, the first plane is higher than the second plane, and the inclined plane is inclined from the second plane to the first plane by an angle.

The invention also provides a car lamp module system which comprises the lens system.

Preferably, the plurality of lens systems include a low beam lens system and a high beam lens system, and the low beam lens system is disposed above the high beam lens system.

Preferably, the plurality of lens systems includes a low beam lens system and a high beam lens system, and the high beam lens system is disposed above the low beam lens system.

Preferably, the plurality of lens systems include a low beam lens system and a high beam lens system, and the low beam lens system and the high beam system are partially overlapped.

Preferably, the plurality of lens systems are a plurality of low beam lens systems and a plurality of high beam lens systems, the low beam lens systems are arranged in parallel, and the high beam lens systems are arranged in parallel.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention integrates the lens, the cut-off line structure and the projection lens into a part, thereby realizing integration, further reducing the size of the lens system or the module, reducing the size of the single lens system, increasing the size flexibility, and improving the shapes, the arrangement and the space limitation of the car lamp consisting of a plurality of lens systems;

2. the position relation among the lens, the cut-off line structure and the projection lens is fixed, the relative position is not required to be adjusted, the tolerance chain is shortened, and the structure relation is more stable;

3. according to the invention, through the design that the lens, the cut-off line structure and the projection lens are integrated into one part, the cut-off line structure on the lower surface of the lens body is used as a low-beam cut-off line structure or a high-beam cut-off line structure to replace a light barrier in the prior art, and the intersection line at the intersection of the intersection surfaces of the cut-off line structures is just used for forming a low-beam cut-off line or a high-beam cut-off line, so that the traditional metal light screen is not required to be additionally added, and the parts are further reduced;

4. the light distribution lens, the cut-off line structure and the projection lens are integrated into a single-part design, so that light energy is completely bound in the light distribution lens to be transmitted, the energy loss is reduced to the minimum, and the light utilization rate is improved without plating metal films on the upper surface and the inner surface of the light screen in the prior art;

5. for a single module, a single lens system corresponds to one function, and the respective light rays of far and near lights cannot interfere with each other, so that the opening of the single lens system can be made smaller, the technical requirements of the current car lamp module are met, the light type design of each single lens system is complete, and when multiple lens systems are arranged, the position arrangement of the single lens system has high flexibility and small limitation;

6. the combination of a plurality of lens systems realizes various position settings and modeling schemes of a plurality of small-size lens systems, the space is more flexible, and the lens system can flexibly cope with the development of increasingly narrow or small vehicle lamp design space;

7. the light type of the single lens system is completely designed, when the multiple lens systems are combined for use, the position setting is more flexible than the existing scheme, and the single lens system is also applicable to even a module design with a narrow opening;

8. the multi-lens system is combined by a plurality of lens systems, so that the visual angle range and the widening requirement are easier to realize;

9. each single lens system is an integrated part, and when a plurality of lens systems are combined for use, the cost can be reduced even if the modeling is complex;

10. the depth length of the single lens system is flexibly set, so that when the multi-lens system is used in a combined manner, the flexibility of the integral setting space in the depth dimension is improved;

11. the vehicle lamp module system is low in cost and can solve the problem of heat concentration.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a top view of a lens system with a cut-off line structure for printing a low beam center spot area beam pattern in one embodiment;

FIG. 2 is a bottom view of a lens system with a cut-off line structure for striking a low beam center spot area pattern in one embodiment;

FIG. 3 is a top view perspective isometric view of a lens system with a cut-off line structure for cutting a low beam center bright spot area beam pattern in one embodiment;

FIG. 4 is a bottom view perspective isometric view of a lens system with cut-off line structure for cutting out a low beam center spot area beam pattern in one embodiment;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 6 is a top view of a lens system with a cut-off line structure for patterning a spot area of a high beam center in one embodiment;

FIG. 7 is a bottom view of a lens system with a cut-off line structure for striking a high beam center spot area beam pattern in one embodiment;

FIG. 8 is a top view perspective isometric view of a lens system with a cut-off line configuration for striking a high beam center bright spot area beam pattern in one embodiment;

FIG. 9 is a bottom view perspective isometric view of a lens system with a cut-off line configuration for striking a high beam center spot area beam pattern in one embodiment;

FIG. 10 is a cross-sectional view taken along line D-D of FIG. 6;

FIG. 11 is a top view of a lens system of a non-stop line configuration for emitting a high beam pattern in one embodiment;

FIG. 12 is a bottom view of a lens system of a non-stop line configuration for emitting high beam light in one embodiment;

FIG. 13 is an isometric view of a lens system of a non-stop line configuration for outputting high beam light in one embodiment;

FIG. 14 is a cross-sectional view taken along line E-E of FIG. 11;

fig. 15 is a structural view of a lens-equipped vehicle lamp module system according to the related art.

The figures show that:

light source 1 lens focus 7

Ray 8 of lens 2

Focal plane 9 of light incidence surface 201 of lens

Lens body 202 first lens 10

Primary light distribution surface 3 and second lens 11

Lens 4 projection lens 12

Stop line structure 5 projection lens body 1201

Lens side 6 projection lens exit surface 1202

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1:

as shown in fig. 1 to 15, the present embodiment provides a lens system, which includes a light source 1, a lens 2, and a projection lens 13, wherein the light source 1 is disposed at a focal point of a light-entering end of the lens 2, and the projection lens 12 is integrally formed on the lens 2. The lens 2 includes a lens light incident surface 201 and a lens body 202, the projection lens 12 includes a projection lens body 1201 and a projection lens light emergent surface 1202, the projection lens body 1201 is integrally formed on the lens body 202, the lens light incident surface 201 is disposed on a side wall of the lens body 202 far away from the projection lens body 1201, and the projection lens light emergent surface 1202 is disposed on a side wall of the lens body 1201 far away from the lens body 202. The light source 1 emits light, the light reaches the lens light incident surface 201, and the light passes through the lens light incident surface 201 and then sequentially exits through the projection lens body 1201 and the projection lens light exiting surface 1202.

The lens 2 further includes a lens side surface 6 and a primary light distribution surface 3. The lens side surfaces 6 are arranged on two opposite side walls of the lens body 202, the lens side surfaces 6 are positioned between the lens light incident surface 201 and the projection lens light emitting surface 1202, the primary light distribution surface 3 is arranged on the lens body 202, and the primary light distribution surface 3 is positioned between the lens light incident surface 201 and the lens side surfaces 6. The light source 1 emits light, the light reaches the lens light incident surface 201, the light reaches the primary light distribution surface 3 through the lens light incident surface 201, and the light is totally reflected by the primary light distribution surface 3 and then exits through the projection lens light exiting surface 1202.

The light source 1 emits light, the light reaches the lens light incident surface 201, the light reaches the primary light distribution surface 3 through the lens light incident surface 201, and the light is totally reflected by the primary light distribution surface 3 and then exits through the projection lens light exiting surface 1202. The side surface 6 of the light distribution mirror is provided with dermatoglyph.

The lens 2 further comprises a cut-off line structure 5, the cut-off line structure 5 is arranged on the lens body 202, and the cut-off line structure 5 is arranged at a focus of a vehicle lamp module system where the lens system is located. The cut-off line structure 5 has a step-like structure. The step-shaped structure comprises a first plane, an inclined plane and a second plane which are sequentially connected, wherein the first plane is higher than the second plane, and the inclined plane is inclined by 45 degrees from the second plane to the first plane.

The present embodiment further provides a car light module system, which includes a plurality of lens systems as described above, and the lens systems may be set as follows:

the plurality of lens systems comprise a low beam lens system and a high beam lens system, and the low beam lens system is arranged above the high beam lens system;

the plurality of lens systems comprise a dipped beam lens system and a high beam lens system, and the high beam lens system is arranged above the dipped beam lens system;

the plurality of lens systems comprise a low beam lens system and a high beam lens system, and the low beam lens system and the high beam system are partially overlapped;

the plurality of lens systems are a plurality of dipped beam lens systems and a plurality of high beam lens systems, the dipped beam lens systems are arranged in parallel, and the high beam lens systems are arranged in parallel.

The embodiment further provides a lamp comprising the vehicle lamp module system.

The embodiment further integrates the single projection lens in the prior art into the part on the basis of integrating the primary lens of the high beam or the low beam and the traditional cut-off line structure, so that the traditional mode of assembling a module by the primary lens, the light shielding plate and the projection lens is simplified to only one thick-wall part unit, the high beam or low beam function of the car lamp can be realized by the thick-wall part unit, the opening size of the thick-wall part unit is 15mm 30mm, in other embodiments, other sizes can be realized, the thick-wall part units can be flexibly and freely placed, and the high beam and low beam of the car lamp with variable modeling can be realized by combination.

The embodiment proposes to combine the lens, the cut-off line structure and the projection lens into the same part, the three parts are assembled and installed at the same time, the adjustment of the relative position between the three parts is not needed, and the light energy emitted from the light incident surface 201 of the lens and the primary light distribution surface 3 can completely enter the lens body 202 and is transmitted forwards in the lens body 202 in a total reflection manner, so that the energy utilization rate is greatly improved compared with the traditional light shielding plate manner. The traditional shading plate can increase certain light energy utilization rate by increasing a metal coating film, but the light energy utilization rate can be maximized by the mode of the embodiment without coating, so that the space is saved, parts are reduced, and the mounting process is simplified.

When the projection lens is used for near light, the thickness of the part of the lens body 202 close to the light-emitting surface 1202 of the projection lens is designed to be larger than that of the part of the lens body 202 where the step is located, so that a cut-off line structure is generated when the two parts are integrated into a single part; when the lens is used for the far light, the thickness of the portion of the lens body 202 close to the light-emitting surface 1202 of the projection lens is designed to be equal to the thickness of the portion of the lens body 202 where the step is located, so that the height difference between the two portions is not generated, that is, the cut-off line structure is not generated.

As shown in fig. 15, the conventional lens 4 has a light incident surface and a light emitting surface, and after the projection lens and the lens body are integrated into a single component, the projection lens in the embodiment of the invention is represented by the projection lens body and the light emitting surface of the projection lens, and the surface shape of the light emitting surface can be designed accordingly according to the needs of modeling and optical effect. The opening size of the whole lens system is determined by the light emitting surface of the projection lens, and due to integration, the traditional plastic lens support and the buckle or the screw are not needed any more, parts are saved, and meanwhile, the cost is saved.

A lens system is a module unit, if the combination of a plurality of module units is needed to realize the final high beam and low beam, although the light type design of each module unit is complete, the combination of a plurality of module units is still needed to meet the light effect requirements of regulations. In the aspect of the structure assembly, every module unit all is furnished with one and adjusts the structure, when requiring to install each module unit according to car light molding when producing the line installation, adjusts the regulation structure that each module unit was adjusted to the calibration station at production line and adjusts, until obtaining accurate light type, the final regulation back position of making clear and definite each unit, the respective partial light type of each module unit just can make up into a complete distance and near light type this moment.

This embodiment is with traditional primary lens, it is a part to close line structure and projection lens three combination, there is the light screen of independent installation and projection lens's far and near light functional system far and near light current, this embodiment only needs one piece to control at the part quality management and control of moulding plastics, optical part required precision is sensitive parameter, it is must the phenomenon to appear warping when the part is moulded plastics, the technology needs to the mould, technological parameters, operation flow each side management and control, a piece is for a plurality of pieces, it is more easy during the management and control, the management and control is changeed to the lens system light type accuracy nature of final embodiment.

The single module unit of this embodiment is small in size, and the opening size can be made into 15x30mm, and the scheme of this embodiment adopts a plurality of above-mentioned unit combinations to satisfy optical regulation requirement. In a preferred embodiment, the combined overall opening size is 15x150mm, which in practice can be adjusted as desired. The light type of single module unit is complete, but the light efficiency is not enough can't satisfy the regulation requirement, and the many above-mentioned module unit combinations of this embodiment use and satisfy the regulation, is different from adopting a module to realize whole functions before, but the single module size is littleer more nimble, and the problem of space restriction is solved ingeniously, and the molding that a plurality of above-mentioned small-size module cooperations were used is car light development trend, and the position is arranged in a flexible way, and the scheme is nimble changeable.

This embodiment integrates traditional module projection lens and lens income plain noodles, lens body etc. into a spare for no longer need lens support, buckle or screw.

Each lens system module of the embodiment is designed to be complete in light type, when the multi-lens system is applied to a car lamp, the light source value setting of each lens system can be the same or different, and the light source brightness parameters of the design scheme are determined according to specific requirements, such as different brightness requirements, different widening light effect requirements and the number of lens system usage in certain different versions.

For each lens single system, in a preferred embodiment, the light incident surface of the lens is set to be a collimation structure, the various conditions of the near light are set to be a near light collimation structure, and the various conditions of the far light are set to be a far light collimation structure.

The position of a cut-off line of a single lens system can be arranged forwards, even if the functions of the automobile lamp are more personalized by requirements due to development, various running water and dynamic lighting not only lead to frequent application of a high-energy light source, but also lead to the problems that the space of the automobile lamp is narrower and the thermal problem is more serious. The multiple lens systems of the embodiment are combined for use, the depth dimension design of each lens system is independent and flexible, the light source positions of the lens systems can be staggered, the light sources can be separately arranged at different positions, and the heat concentration design is prevented from being more flexible.

In practical applications, the radian of the projection lens light emitting surface 1202 can be designed according to practical requirements, the flatter the radian of the projection lens light emitting surface 1202 is, the wider the left and right broadening of the beam pattern emitted by the whole lens system is, and the curved radian of the projection lens light emitting surface 1202 is, the narrower the left and right broadening of the beam pattern emitted by the whole lens system is, but the higher the light efficiency of the central area is.

The width of projection lens goes out plain noodles 1202 in orthographic projection direction can be according to actual need design, can design the same for the width, also can design that the width is different for the width in the car light module system that contains a plurality of lens systems of throwing basic light type and throwing the regional light type of central bright spot. If the widths are the same, in the preferred embodiment, the design width is determined based on the lens for projecting the light pattern of the central bright spot area, and then the width of the lens system for projecting the basic light pattern is designed to be the same as the width of the lens system for projecting the light pattern of the central bright spot area.

The lens system of the present embodiment is suitable for basic light types of high beam and low beam and center bright spot area light types.

Example 2:

those skilled in the art will understand this embodiment as a more specific description of embodiment 1.

As shown in fig. 1 to 5, the present embodiment provides a single lens system with a cut-off line structure for emitting a low beam central bright point area light pattern, which includes a light source 1 and a lens 2 with a cut-off line structure for emitting a low beam central bright point area light pattern, the lens 2 with a cut-off line structure for emitting a low beam central bright point area light pattern includes a lens light incident surface 201, a lens body 202 and a lens light emitting surface, and the lens light incident surface 201, the lens body 202 and the lens light emitting surface are integrally formed. The lens exit surface is formed by a projection lens exit surface integrally formed on the lens body 202, i.e. the projection lens exit surface 1202 in fig. 1.

The light source 1 is arranged at the focal position of the light inlet end of the lens 2 with the cut-off line structure for emitting the light type of the low beam center bright spot area, and the lens 2 with the cut-off line structure for emitting the light type of the low beam center bright spot area further comprises a primary light distribution surface 3 and a cut-off line structure 5.

The primary light distribution surface 3 is disposed between the light incident surface 201 and the side surface 6 of the lens, and is used for primarily adjusting the light 8 emitted from the light source 1 without any distribution to reach the light emergent surface of the lens.

As shown in fig. 15, in the prior art, especially in the field of car light modules, an independent lens 4 is generally disposed outside a light distribution lens, and after light passes through the light distribution lens, the emitted light enters the inner surface of a projection lens again and is emitted to the outer surface of the projection lens through a projection lens body, wherein the inner surface of the projection lens has a light diffusion effect.

The cutoff line structure 5 is provided at and near the focal point of the optical system, the cutoff line structure 5 is provided at a lower middle position of the lens body 202 as viewed in the vertical direction, and the opening side of the cutoff line structure 5 is downward. The cut-off line structure 5 has a step-like structure, so that the lens system can hit off a cut-off line, and the lens 2 with a cut-off line structure for hitting off a low-beam center bright point area light pattern of the present embodiment is a cut-off line that enables it to hit off a low-beam center bright point area light pattern. As shown in fig. 4, in a preferred embodiment, the step-like structure of the cut-off line structure 5 is configured to have a lower plane, a 45 ° inclined plane inclined upward from the left bottom to the right, and an upper plane, wherein the lower plane, the 45 ° inclined plane inclined upward from the left bottom to the right, and the end of the upper plane are sequentially connected, that is, the cut-off line structure of the present embodiment. The higher plane opposite side of cut-off line structure 5 still is connected with the inclined plane that the slant is decurrent and the lower plane of further connecting in order, and the effect forms the cut-off line molding that has bathtub type pit, and this kind of figurative cut-off line can supply the left side road surface that light type left side light is lacked and illuminate not enough defect than traditional zigzag cut-off line for left side road surface or pedestrian can have better visual effect.

As shown in fig. 1, the lens 2 with the cut-off line structure for emitting the low beam central bright point area light pattern has a lens focus F, the lens focus F is disposed at a midpoint position of an intersection line of a 45 ° inclined plane and a vertical plane of the lens 2 with the cut-off line structure for emitting the low beam central bright point area light pattern, light emitted from the light source 1 enters the primary light distribution surface 3, and then enters the lens focus F after being totally reflected, and the light with the cut-off line information is emitted to the light emitting surface of the lens.

The length limitation of the depth direction of the lens 2 with the cut-off line structure for emitting the light type of the low beam center bright point area light type is not limited in the embodiment, and in practical application, the lens can be adjusted according to actual project requirements, and the design flexibility is large. The depth direction length is shorter the more, the angle area that the light that goes out the plain noodles from the lens goes out the plain noodles and presents is bigger, the light type is regional can be bigger about widening, the light type can shine visual angle scope about bigger, widening light type can provide driver self and the car of coming about bigger, subtend car, pedestrian's field of vision, effectively avoid because about widening the light type not enough or narrow about that leads to the field of vision not enough and the potential safety hazard that brings, field of vision scope can be narrower than conventional condition when crossroad and turn, if control the field of vision not enough to driver and pedestrian potential safety hazard more seriously, it can effectively improve the crossroad to increase the light type about widening regional, the security when condition such as turn. When the length in the depth direction is longer, the smaller the angle area presented by the light emitted from the light emitting surface of the lens is, although the area of widening the light pattern in the left and right directions is small, the light emitting angle is reduced, so that the middle brightness of the light pattern is higher, and the illumination performance is improved. However, the lens 2 of the present embodiment is a central bright spot area of the beam, and has a low demand for broadening, and a higher demand is a central light effect. When the intermediate brightness is desired to be higher, this is achieved by flexibly increasing the depth direction length of the lens 2. Another modification of this embodiment is that when applied to a low beam basic light type, it is preferable to reduce the length of the lens 2 in the depth direction, so that the angle of the light emitted from the light exit surface of the lens is increased, and the light type is widened left and right.

In a preferred embodiment, the material of the lens 2 is selected to increase the light absorption rate and the light effect, so that the brightness of the central area is improved, and if the conventional material can meet the requirement, no special material is required to be further selected.

The side of the lens 2 with the cut-off line structure for emitting the light type of the near light center bright point area has two lens sides 6, and in the preferred embodiment, the lens sides 6 are additionally provided with dermatoglyph which effectively shields stray light and improves the uniformity.

The light is emitted from the light source 1, then reaches the primary light distribution surface 3, then reaches the lens focus 7 after being totally reflected, part of the light passes through the upper part of the cut-off line structure 5, then the light with the cut-off line information is emitted to the light emitting surface of the light distribution lens, and part of the light is emitted to the lower part of the cut-off line structure 5 and is cut off, so that a dark area above the low beam type is formed, and the glare of an opposite vehicle driver is avoided.

Example 3:

As shown in fig. 6 to 10, the present embodiment provides a single lens system with a cut-off line structure for emitting a high beam central bright spot area light pattern, which includes a light source 1 and a lens 2 with a cut-off line structure for emitting a high beam central bright spot area light pattern, the lens 2 with a cut-off line structure for emitting a low beam central bright spot area light pattern includes a lens light incident surface 201, a lens body 202 and a lens light emitting surface, and the lens light incident surface 201, the lens body 202 and the lens light emitting surface are integrally formed. The lens exit surface is formed by a projection lens integrally formed on the lens body 202, i.e. the projection lens exit surface 1202 in fig. 6.

The light source 1 is arranged at the focal position of the light inlet end of the lens 2 with the cut-off line structure for emitting the light type of the high beam central bright spot area, and the lens 2 with the cut-off line structure for emitting the light type of the high beam central bright spot area further comprises a primary light distribution surface 3 and a cut-off line structure 5. The lens system of the present embodiment is different from the lens system of embodiment 2 in that the cut-off line structure 5 is disposed at the upper middle position of the lens body when viewed from the vertical direction, the opening side of the cut-off line structure 5 is upward, the cut-off line structure 5 of the present embodiment is opposite to the cut-off line structure 5 of embodiment 2, because the low beam type requires the cut-off line lower Fang Liang, the upper side is dark, the opening is downward, the lower beam is cut off, the upper beam is inverted in the upper-lower and left-right directions after passing through the light exit surface of the lens, and then the image is formed below the cut-off line, the high beam type is just opposite, the high beam requires the cut-off line upper side to be bright, the opening is upward, and the light passes through the lens exit surface from the lower side and then passes through the lens exit surface and then is inverted in the upper-lower and left-right directions to-left directions to light to illuminate the area above the cut-off line.

The primary light distribution surface 3 and the cut-off line structure 5 are the same in structure and function as those in the lens system in example 2.

As shown in fig. 7, the lens 2 with the cut-off line structure for emitting the high beam central bright spot area light pattern has a lens focus F, the lens focus F is disposed at a midpoint position of an intersection line of a 45 ° inclined plane and a vertical plane of the lens 2 with the cut-off line structure for emitting the high beam central bright spot area light pattern, the emergent light of the light source 1 reaches the primary light distribution surface 3 and then reaches the lens focus F after being totally reflected, and the light is emitted to the light emitting surface of the lens with the cut-off line information.

The length limitation of the depth direction of the lens 2 with the cut-off line structure for emitting the light type of the far-beam central bright spot area light type is not limited by the embodiment, the lens can be adjusted according to the actual project requirement, and the design flexibility is large. The depth direction length is shorter the more, the angle area that the light that goes out the plain noodles from the lens emergent face presents is bigger, the light type is widened regional about can be bigger, the light type can shine to bigger visual angle scope about to, the light type that widens about bigger can provide driver self and come the car, subtend car, pedestrian's field of vision, effectively avoid because control the light type that widens not enough or narrow leads to about the field of vision is not enough and the security hidden trouble that brings about, field of vision scope can be narrower than conventional condition when crossroad and turn, if control the field of vision not enough to driver and pedestrian's security hidden danger more serious, increase the light type about the region that widens and can effectively improve the crossroad, security during the circumstances such as turn. When the length in the depth direction is longer, the smaller the angle area presented by the light emitted from the light emitting surface of the lens is, although the area widened to the left and right of the light pattern is small, the light emitting angle is reduced, so that the middle brightness of the light pattern is higher, and the illumination performance is improved. However, the lens 2 of the embodiment is a central bright spot area of the beam spread, and has a low demand for broadening, and a higher demand is a central light effect. When the intermediate brightness is desired to be higher, it is realized by flexibly increasing the depth direction length of the lens 2. Another modification of this embodiment is that when the light source is applied to a high beam basic light type, it is preferable to reduce the length of the lens 2 in the depth direction, so that the angle of the light emitted from the light emitting surface of the lens is increased, and the light type is widened left and right.

The material of the lens 2 is preferably selected to increase the light absorption rate and the light effect, so that the brightness of the central area is improved, and if the conventional material can meet the requirement, no special material is required to be further selected.

The side of the lens 2 with the cut-off line structure for emitting the light type of the far-beam central bright spot area is provided with two lens sides 6, and in the preferred embodiment, dermatoglyphs are added on the lens sides 6, so that stray light is effectively shielded, and the uniformity is improved.

As shown in fig. 10, light is emitted from the light source 1, then reaches the primary light distribution surface 3, then is totally reflected, and then reaches the lens focus 7, after a part of the light passes through the lower part of the cut-off line structure 5, the light hits the light emitting surface of the lens with the cut-off line information, and then is emitted, and a part of the light hits the upper part of the cut-off line structure 5 and is cut off, so that a high beam light type with a bright upper part and a dark lower part is formed.

In addition, compared with the lens system in example 2, that is, the lens with the cut-off line structure that emits the low beam center area light pattern and the lens with the cut-off line structure that emits the high beam center area light pattern are different in that the cut-off line structure opening of the lens with the cut-off line structure that emits the low beam center area light pattern is downward as viewed from the top, and the cut-off line structure opening of the lens with the cut-off line structure that emits the high beam center area light pattern is upward as viewed from the top. The reason is that the low beam type requires Fang Liang below the cut-off line, the upper side is dark, the opening is downward, the lower light is cut off, the upper light is inverted in the up-down and left-right directions after passing through the light emitting surface of the lens, and then the image is formed below the cut-off line.

Example 4:

As shown in fig. 11 to 14, the present embodiment provides a single lens system without a cut-off line structure for emitting a high beam light type, which includes a light source 1 and a lens 2 without a cut-off line structure for emitting a high beam light type, where the lens 2 without a cut-off line structure for emitting a high beam light type includes a lens light incident surface 201, a lens body 202, and a lens light emitting surface, and the lens light incident surface 201, the lens body 202, and the lens light emitting surface are integrally formed. The lens exit surface is formed by a projection lens exit surface integrally formed on the lens body 202, i.e. the projection lens exit surface 1202 in fig. 11.

The light source 1 is disposed at a focal position of a light entrance end of the lens 2 of the cutoff-line-free structure for emitting the high beam light, and the lens 2 of the cutoff-line-free structure for emitting the high beam light further includes a primary light distribution surface 3.

The lens 2 of the non-cut-off line structure for emitting the high beam light type is provided with a lens focus F, the lens focus F is arranged at the position of the system focus to be consistent, and the emergent light of the light source 1 enters the primary light distribution surface 3, is totally reflected, then enters the lens focus F and then is emitted to the light emitting surface of the lens.

The side of the lens of the cut-off line structure without the high beam light type has two lens sides 6, in the preferred embodiment, the lens sides 6 are added with dermatoglyph, effectively shelters from stray light and improves the homogeneity.

Light is emitted from the light source 1, then is reflected to the primary light distribution surface 3, then is reflected to the lens focus 7, and then directly reaches the light emitting surface of the light distribution lens to be emitted, so that a high-beam light type with the upper part and the lower part bright is formed.

Example 5:

those skilled in the art can understand this embodiment as a more specific description of

embodiments

1, 2, 3 and 4.

The embodiment provides a car light module system of many beam splitter system combination, including three beam splitter system of the area cut-off line structure of playing low-beam basis light type, two beam splitter systems of the area cut-off line structure of playing the regional light type of low-beam center bright spot, three beam splitter system of the area cut-off line structure of playing the basic light type of high beam and two beam splitter systems of the area cut-off line structure of playing the regional light type of center bright spot.

The arrangement positions of the light distribution lens systems are not limited to the up-down, left-right and any arrangement positions, and the light distribution lens systems are not limited in position and can be flexibly arranged. In practical application, the position can be set according to the modeling requirement of a user and the space requirement, but the flexible setting without position limitation enables the scheme of the embodiment to meet the modeling requirement more easily, cannot be limited by space, and has high degree of freedom and flexibility.

The position that a plurality of lens systems of this embodiment can be set up is unlimited, and the position setting of many lens systems can be more nimble, and for example the distance beam module can set up in upper portion or lower part and even wantonly place its position, and the passing beam module can set up in upper portion or lower part and even wantonly place its position equally, and in addition, a plurality of modules can be close to, keep away from, even paste together completely, and the position design selection is more freely more nimble.

In a preferred embodiment, the lens systems may be arranged in the following relationship:

the plurality of lens systems comprise a near-beam lens system and a high-beam lens system, and the near-beam lens system is arranged above the high-beam lens system;

the plurality of lens systems comprise a low beam lens system and a high beam lens system, and the high beam lens system is arranged above the low beam lens system;

the plurality of lens systems comprise a dipped beam lens system and a high beam lens system, and the dipped beam lens system and the high beam system are partially overlapped;

the plurality of lens systems are a plurality of dipped beam lens systems and a plurality of high beam lens systems, the dipped beam lens systems are arranged in parallel, and the high beam lens systems are arranged in parallel;

the plurality of lens systems include a low beam lens system and a high beam lens system, and the high beam lens system is disposed on an inclined upper side or an inclined lower side of the low beam lens system.

Each individual lens system of the present embodiment is designed with the optical model designed, and is a complete design. The light type of each individual system of the lens system of this embodiment is all independent, and the lens system is including integrating in an organic whole and integrated into one piece's lens income plain noodles 201, lens body 202, the lens goes out the plain noodles, the integration of lens play plain noodles is in the lens, then can not have the demand that can fall the rule requirement light type if prior art, the light type of each individual lens system module all designs as whole alone, therefore the lens system of this embodiment sets up the position and can not be restricted, position relation between each other is the same can not be restricted.

The invention reduces the size of the lens system through the integrated design, can reduce the size of a single lens, increases the size flexibility, has more various shapes and more flexible arrangement for the vehicle lamp consisting of a plurality of lens systems, and improves the space limitation.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, are not to be construed as limiting the present application.

The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. A lens system is characterized by comprising a light source (1), a lens (2) and a projection lens (12), wherein the light source (1) is arranged at the focus position of the light inlet end of the lens (2), and the projection lens (12) is integrally formed on the lens (2);

the lens (2) comprises a lens light inlet surface (201) and a lens body (202), and the projection lens (12) comprises a projection lens body (1201) and a projection lens light outlet surface (1202); the projection lens body (1201) is integrally formed on the lens body (202), the lens light inlet surface (201) is arranged on a side wall of the lens body (202) far away from the projection lens body (1201), and the projection lens light outlet surface (1202) is arranged on a side wall of the projection lens body (1201) far away from the lens body (202);

the light source (1) emits light rays, the light rays reach the light incidence surface (201) of the lens, and the light rays pass through the light incidence surface (201) of the lens and then sequentially pass through the projection lens body (1201) and the light emergence surface (1202) of the projection lens to be emitted.

2. A lens system according to claim 1, characterized in that the lens (2) further comprises a lens side surface (6) and a primary light distribution surface (3);

the lens side surfaces (6) are arranged on two opposite side walls of the lens body (202), and the lens side surfaces (6) are positioned between the lens light-in surface (201) and the projection lens light-out surface (1202);

the primary light distribution surface (3) is arranged on the lens body (202), and the primary light distribution surface (3) is positioned between the lens light incident surface (201) and the lens side surface (6);

the light source (1) emits light, the light reaches the light incident surface (201) of the light distribution lens, the light reaches the primary light distribution surface (3) through the light incident surface (201) of the light distribution lens, and the light is totally reflected by the primary light distribution surface (3) and then emitted through the light emitting surface (1202) of the projection lens.

3. Lens system according to claim 1, characterized in that the lens (2) further comprises a cut-off line structure (5), the cut-off line structure (5) being provided on the lens body (202), the cut-off line structure (5) being provided at a focus of a vehicle lamp module system in which the lens system is located.

4. Lens system according to claim 3, characterized in that the cut-off line structure (5) has a stepped structure.

5. The lens system according to claim 4, wherein the stepped structure includes a first plane, a slope and a second plane arranged in series, the first plane being higher than the second plane, the slope being arranged at 45 ° from the second plane to the first plane.

6. A vehicular lamp module system characterized by comprising a plurality of lens systems according to any one of claims 1 to 5.

7. The vehicle lamp module system according to claim 6, wherein the plurality of lens systems includes a low beam lens system and a high beam lens system, and the low beam lens system is disposed above the high beam lens system.

8. The lamp module system according to claim 6, wherein the plurality of lens systems includes a low beam lens system and a high beam lens system, and the high beam lens system is disposed above the low beam lens system.

9. The lamp module system of claim 6, wherein the plurality of lens systems comprises a low beam lens system and a high beam lens system, and the low beam lens system and the high beam system are partially overlapped.

10. The vehicle lamp module system according to claim 6, wherein the plurality of lens systems are a plurality of low beam lens systems and a plurality of high beam lens systems, the plurality of low beam lens systems are arranged in parallel, and the plurality of high beam lens systems are arranged in parallel.