Double-light module, vehicle lamp, and vehicle

Abstract

A double-light module, comprising a lens and a plurality of unit optical systems. The plurality of unit optical systems are transversely arranged in sequence; the unit optical systems each comprise primary optical elements (3, 5) and light sources (2, 4); the lens comprises a plurality of lens units (1, 6, 7) connected in sequence; the unit optical systems are in one-to-one correspondence with the lens units (1, 6, 7); at least one unit optical system is a high- and low-beam combined unit system; the high- and low-beam combined unit system comprises at least one low-beam light source (2), a low-beam primary optical element (3), a high-beam light source (4), and a high-beam primary optical element (5); the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit (1); the low-beam primary optical element (3) is configured to be capable of collimating, to the high- and low-beam combined lens unit (1), light emitted by the low-beam light source (2) and project the light for imaging; and the high-beam primary optical element (5) is configured to be capable of collimating, to the high- and low-beam combined lens unit (1), light emitted by the high-beam light source (4) and project the light for imaging. The double-light module of such a structure can mitigate the thermal risk of systems and effectively enhance the light pattern broadening, and has low costs. Further disclosed are a vehicle lamp and a vehicle.

Description

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims the benefits of China Patent Application No. 202311766680.3 and 202323495647.X filed on Dec. 20, 2023, the contents of which are incorporated herein by reference.FIELD

[0002] The present disclosure relates to an illumination module, in particular to a double-light module. In addition, the present disclosure further relates to a vehicle lamp and a vehicle.BACKGROUND

[0003] In recent years, as automobiles are developed in a trend of automobile intellectualization and the requirements in relevant laws and regulations are enhanced continuously, corresponding adjustments and progresses have been made in the field of vehicle lamps.

[0004] In the prior art, in order to meet the requirement for luminous flux, a plurality of LEDs are placed in a unit cell. However, with the plurality of LEDs placed together, the temperature of the unit is higher during the operation, leading to a high thermal risk; moreover, the plurality of LEDs are placed together too densely, resulting in an inadequate light dispersion angle. Therefore, the light pattern broadening requirement can't be met, and the cost is high.

[0005] Therefore, it is desirable to design a novel double-light module, so as to overcome or alleviate the above-mentioned technical problems.SUMMARY

[0006] A first object of the present disclosure is to provide a double-light module, which can reduce the thermal risk of the system, effectively improve light pattern broadening, and has a relatively low cost. A second object of the present disclosure is to provide a vehicle lamp, and a third object of the present disclosure is to provide a vehicle.

[0007] In order to attain the above-mentioned objects, in a first aspect, the present disclosure provides a double-light module, which comprises a lens and a plurality of unit optical systems, wherein the unit optical systems are transversely arranged in sequence, the unit optical systems each comprise primary optical elements and light sources, the lens has a plurality of lens units that are linked up sequentially, and each unit optical system is respectively arranged corresponding to a lens unit; at least one of the unit optical systems is a high- and low-beam combined unit system, which comprises at least one low-beam light source, at least one low-beam primary optical element, at least one high-beam light source, and at least one high-beam primary optical element; the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit, the low-beam primary optical element is configured to collimate the light emitted by the low-beam light source to the high- and low-beam combined lens unit and project the light through the high- and low-beam combined lens unit to form an image; and the high-beam primary optical element is configured to collimate the light emitted by the high-beam light source to the high- and low-beam combined lens unit and project the light through the high- and low-beam combined lens unit to form an image.

[0008] In some embodiments, at least one of the unit optical systems is a low-beam unit system, which comprises at least one low-beam light source and at least one low-beam primary optical element; the low-beam unit system corresponds to a low-beam lens unit, and the low-beam primary optical element is configured to collimate the light emitted by the corresponding low-beam light source to the low-beam lens unit and project the light through the low-beam lens unit to form an image.

[0009] In some embodiments, at least one of the unit optical systems is a high-beam unit system, which comprises at least one high-beam light source and at least one high-beam primary optical element; the high-beam unit system corresponds to a high-beam lens unit, and the high-beam primary optical element is configured to collimate the light emitted by the corresponding high-beam light source to the high-beam lens unit and project the light through the high-beam lens unit to form an image.

[0010] In some embodiments, both the low-beam primary optical element and the high-beam primary optical element are reflectors.

[0011] In some embodiments, the reflectors are parabolic reflectors or ellipsoidal reflectors.

[0012] In some embodiments, a cutoff line forming structure for forming a low-beam cutoff line is arranged on the periphery of the low-beam primary optical element.

[0013] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems.

[0014] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction.

[0015] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the outermost unit optical system has at least two primary optical elements.

[0016] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is greater than the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0017] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is smaller than the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0018] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is equal to the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0019] In some embodiments, a baffle is arranged between every two adjacent unit optical systems.

[0020] In some embodiments, the light incident surface of at least one of the lens units is provided with a light diffusion structure.

[0021] In some embodiments, the light diffusion structure is a pattern arranged on the light incident surface of the lens unit.

[0022] In a second aspect, the present disclosure provides a vehicle lamp, which is provided with the above-mentioned double-light module.

[0023] In a third aspect, the present disclosure provides a vehicle, which is provided with the above-mentioned vehicle lamp.

[0024] According to the above technical scheme, in the present disclosure, a plurality of unit optical systems are sequentially arranged in the horizontal direction, and the unit optical systems are independent, correspond to different lens units, and are used to realize different functions respectively; in addition, at least one high- and low-beam combined unit system exists, so that the light sources are more dispersed, and the thermal risk of the system can be reduced; moreover, the light pattern broadening can be effectively improved, and the cost is relatively low.

[0025] Other features and advantages of the present disclosure will be further detailed below in some embodiments.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To explain the technical scheme in the embodiments of the present disclosure more clearly, the drawings to be used in the description of the embodiments or the prior art will be introduced below briefly. Obviously, the drawings used in the description below only illustrate some embodiments of the present disclosure, and those having ordinary skills in the art can work out other drawings based on these drawings without expending any creative labor. Fig. 1 is a schematic structural diagram of the double-light module in a first embodiment of the present disclosure; Fig. 2 is a first schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 3 is a second schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 4 is a third schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 5 is a schematic diagram of the effect of the projected low-beam light pattern formed by the low-beam unit system in the middle of the double-light module in the first embodiment of the present disclosure; Fig. 6 is a schematic diagram of the effect of the projected low-beam light pattern formed by the first right low-beam unit system of the double-light module in the first embodiment of the present disclosure; Fig. 7 is a schematic diagram of the effect of the projected low-beam light pattern formed by the second right low-beam unit system of the double-light module in the first embodiment of the present disclosure; Fig. 8 is a schematic diagram of the effect of the projected low-beam light pattern formed by the rightmost high- and low-beam combined unit system of the double-light module in the first embodiment of the present disclosure; Fig. 9 is a schematic diagram of the light path of the high- and low-beam combined unit system in the specific embodiment of the present disclosure; Fig. 10 is a schematic diagram of the effect of the projected high-beam light pattern formed by the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 11 is a schematic diagram of the effect of the projected low-beam light pattern formed by the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 12 is a first schematic diagram of the high-beam light path of the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 13 is a second schematic diagram of the high-beam light path of the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 14 is a schematic structural diagram of the double-light module in a second embodiment of the present disclosure; Fig. 15 is a first schematic diagram of the three-dimensional structure of the double-light module in the second embodiment of the present disclosure; Fig. 16 is a second schematic diagram of the three-dimensional structure of the double-light module in the second embodiment of the present disclosure; Fig. 17 is a first structural schematic diagram of the low-beam unit system in the middle and the corresponding low-beam lens unit in the double-light module in an embodiment of the present disclosure; Fig. 18 is a sectional view A-A of the structure in Fig. 17; Fig. 19 is a second structural schematic diagram of the low-beam unit system in the middle and the corresponding low-beam lens unit in the double-light module in an embodiment of the present disclosure; Fig. 20 is a sectional view B-B of the structure in Fig. 19; Fig. 21 is a first structural schematic diagram of the low-beam lens unit in the middle in the double-light module in an embodiment of the present disclosure; Fig. 22 is a sectional view C-C of the structure in Fig. 21; Fig. 23 is a second structural schematic diagram of the low-beam lens unit in the middle in the double-light module in an embodiment of the present disclosure; Fig. 24 is a sectional view D-D of the structure in Fig. 23. Reference Numerals

[0027] 1 -high- and low-beam combined lens unit11 -optical axis2 -low-beam light source3 -low-beam primary optical element31 -cutoff line forming structure4 -high-beam light source5 -high-beam primary optical element6 -low-beam lens unit7 -high-beam lens unit8 -baffle9 -light diffusion structure DETAILED DESCRIPTION

[0028] The embodiments of the present disclosure will be further described below in detail in examples with reference to the accompanying drawings. The following detailed description of the embodiments and drawings are used to illustrate the principle of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, is not limited to the specific embodiments disclosed herein, but includes all technical schemes falling within the scope of the claims.

[0029] These embodiments are provided to make the present disclosure understood thoroughly and completely, and fully convey the scope of the present disclosure to those skilled in the art. It may be noted: unless otherwise specified, the relative arrangement of components and steps, the compositions of materials, numerical expressions and numerical values set forth in these examples may be interpreted as merely illustrative rather than limiting.

[0030] It may be noted that, in order to ease and simplify the description of the present disclosure, generally, the installation orientation of the double-light module is essentially the same as that of the vehicle lamp when the vehicle lamp is actually used on a vehicle. For example, the lens is in front, and correspondingly, the primary optical element is behind. The horizontal arrangement of each unit optical system means that each unit optical system is arranged in a left-right direction, and the vertical arrangement means that it is arranged in the up-down direction. In the description of the present disclosure, the indicated orientational or positional relations are used only to ease and simplify the description of the present disclosure, rather than indicating or implying that the involved device or component may have a specific orientation or may be constructed and operated in a specific orientation. Therefore, the use of these terms shall not be deemed as constituting any limitation to the present disclosure. Once the absolute position of the described object is changed, the relative positional relationship may also change accordingly.

[0031] In addition, the word "comprise", "include" or the like used herein means that the element set forth before the word encompasses the elements set forth after the word, and does not exclude the possibility of encompassing other elements.

[0032] In addition, it may be noted: in the description of the present disclosure, unless otherwise specified and defined explicitly, the terms "install", "interconnect", and "connect", etc. shall be interpreted in their general meanings, for example, a connection may be a fixed connection, detachable connection, or integral connection; or may be a direct connection or indirect connection via an intermediate medium. Those having ordinary skills in the prior art may comprehend the specific meanings of the terms in the present disclosure in their contexts. When it is mentioned that a specific component is located between a first component and a second component, an intermediate device may or may not exist between the specific device and the first device or the second device.

[0033] All terms used in the present disclosure have the same meanings generally understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. It may also be understood that the terms defined in, for example, general dictionaries may be interpreted as having meanings consistent with their meanings in the contexts of related arts, and may not be interpreted in an idealistic or extremely formal sense, unless explicitly defined herein.

[0034] Techniques, methods and apparatuses existing to those having ordinary skills in the art may not be discussed herein in detail, but, where appropriate, those techniques, methods and apparatuses shall be considered as a part of the specification.

[0035] As shown in Figs. 1 to 3 and 14 to 16, in an embodiment of the present disclosure, a double-light module for realizing a low-beam function and a high-beam function is provided. The double-light module comprises a lens and a plurality of unit optical systems, wherein each of the unit optical systems comprises primary optical elements and light sources, and the unit optical systems are transversely arranged in sequence; the lens has a plurality of lens units connected in sequence, and each unit optical system is arranged corresponding to a lens unit respectively; at least one of the unit optical systems is a high- and low-beam combined unit system, which comprises a low-beam primary optical element 3 and a high-beam primary optical element 5, and a low-beam light source 2 and a high-beam light source 4; the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit 1, the low-beam primary optical element 3 is configured to collimate the light emitted by the low-beam light source 2 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image, and the high-beam primary optical element 5 is configured to collimate the light emitted by the high-beam light source 4 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image.

[0036] Based on the above technical scheme, in the double-light module in the present disclosure, a plurality of unit optical systems are sequentially arranged in the horizontal direction, and the unit optical systems are independent, correspond to different lens units, and are used to realize different functions respectively; thus, the light sources are more dispersed, and the thermal risk of the system can be reduced. Moreover, at least one of the unit optical systems is a high- and low-beam combined unit system, which has a low-beam light source 2, a low-beam primary optical element 3, a high-beam light source 4, and a high-beam primary optical element 5; the light emitted by the low-beam light source 2 passes through the low-beam primary optical element 3 and the high- and low-beam combined lens unit 1 and then is used to form a low-beam light pattern, and the light emitted by the high-beam light source 4 passes through the high-beam primary optical element 5 and the high- and low-beam combined lens unit 1 and then is used to form a high-beam light pattern; the low-beam and the high-beam share the high- and low-beam combined lens unit 1. A low-beam light source 2 and a low-beam primary optical element 3 are added in the high-beam unit system without affecting the high-beam, thereby the high-beam unit system is turned into a high- and low-beam combined unit system. With this design, the broadening of the low-beam light pattern can be enhanced; in addition, since other low-beam unit systems are not provided with a low-beam light source 2 and a low-beam primary optical element 3 additionally, the low-beam light sources 2 are not arranged too densely, and a thermal risk can be avoided. Therefore, compared with the prior art in which a low-beam module is provided additionally to enhance the broadening of the low-beam light pattern, the technical scheme of the present disclosure is simple and reliable, and has a lower cost.

[0037] It may be noted that the lens units can be classified into high- and low-beam combined lens units 1, low-beam lens units 6 and high-beam lens units 7, according to the different functions implemented by the lens units.

[0038] In an existing high- and low-beam illumination module, the lens area corresponding to the high-beam module is not lit in the low-beam mode, and the lighting appearance of the vehicle lamp is not satisfactory. In order to obtain a good lighting appearance, it is necessary to actively light up the lens area corresponding to the high-beam module to achieve an accompanying lighting effect of the high-beam in the low-beam mode. Such an approach not only results in energy waste, but also requires additional components for realizing accompanying lighting, and the cost is increased. For example, in the double-light module in the present disclosure, some the unit optical systems may be selected as low-beam unit systems, and the rest unit optical systems may be used as high- and low-beam combined unit systems. In the high- and low-beam combined unit system, the high- and low-beam combined lens unit 1 is shared in the low-beam mode (the low-beam light source 2 and the low-beam primary optical element 3 are used to form a low-beam light pattern) and the high-beam mode (the high-beam light source 4 and the high-beam primary optical element 5 are used to form a high-beam light pattern); in the low-beam mode, the corresponding lens unit and the high- and low-beam combined lens unit 1 can be lit up together; thus, no additional component for attaining an accompany high-beam lighting effect in the low-beam mode is required, and a good vehicle lamp lighting appearance is obtained.

[0039] Specifically, Figs. 14-16 provide an embodiment of the double-light module. Two low-beam unit systems are arranged in the middle, and a high- and low-beam combined unit system is arranged on the left and right sides of the two low-beam unit systems respectively; the low-beam unit system comprises at least one low-beam light source 2 and at least one low-beam primary optical element 3, and the low-beam unit system corresponds to a low-beam lens unit 6; each low-beam primary optical element 3 is configured to collimate the light emitted by the corresponding low-beam light source 2 to the low-beam lens unit 6 and form an image through the low-beam lens unit 6. In the low-beam mode, the low-beam light source 2 in the low-beam unit system is lit up, and the low-beam light source 2 in the high- and low-beam combined unit system is also lit up at the same time; with the low-beam light source 2 in the high- and low-beam combined unit system, the light dispersion angle of the low-beam is large enough, and the broadening of the low-beam light pattern can be enhanced; moreover, since the low-beam light source 2 in the high- and low-beam combined unit system is not provided in the low-beam unit system, the low-beam light sources 2 are arranged in a more dispersed form, the thermal risk of the system can be reduced, while the optical efficiency of the low-beam can be improved.

[0040] It may be noted that the number of low-beam light sources 2 and the number of low-beam primary optical elements 3 arranged in the low-beam unit system can be selected according to the design requirements. Moreover, the number of low-beam unit systems and the number of high- and low-beam combined unit systems can be selected according to the design requirements. The positional relationship between the low-beam unit system and the high- and low-beam combined unit system may be selected and arranged according to the design requirements. For example, the low-beam unit system may be arranged in the middle, while the high- and low-beam combined unit system may be arranged at the outer side of low-beam unit system; alternatively, the high- and low-beam combined unit system may be arranged in the middle, while the low-beam unit system may be arranged at the other side of the high- and low-beam combined unit system; alternatively, the low-beam unit system and the high- and low-beam combined unit system may be arranged in other orders.

[0041] In some embodiments, high-beam unit systems, low-beam unit systems and high- and low-beam combined unit systems may be arranged in the double-light module, some unit optical systems may be selected as the high-beam unit systems, some unit optical systems may be selected as the low-beam unit systems, and the rest unit optical systems may be selected as the high- and low-beam combined unit systems. Figs. 1-3 provide another embodiment of the double-light module, in which three low-beam unit systems are arranged in the middle, three high-beam unit systems are arranged on the left, and one high- and low-beam combined unit system is arranged on the right. Specifically, the high-beam unit system comprises at least one high-beam light source 4 and at least one high-beam primary optical element 5; the high-beam unit system corresponds to a high-beam lens unit 7, and each high-beam primary optical element 5 is configured to collimate the light emitted by the corresponding high-beam light source 4 to the high-beam lens unit 7 and forms an image through the high-beam lens unit 7. In the high-beam mode, the high-beam light source 4 in the high-beam unit system is lit up, and the high-beam light source 4 in the high- and low-beam combined unit system is also lit up at the same time; thus, the light dispersion angle of the high-beam is large enough, and the broadening of the high-beam light pattern can be enhanced; moreover, since the high-beam light source 4 in the high- and low-beam combined unit system is not provided in the high-beam unit system, the high-beam light sources 4 are arranged in a more dispersed form, the thermal risk of the system can be reduced, while the optical efficiency of the high-beam can be improved.

[0042] It may be noted that the number of high-beam light sources 4 and the number of high-beam primary optical elements 5 arranged in the high-beam unit system can be selected according to the design requirements. Moreover, the number of high-beam unit systems, the number of low-beam unit systems, and the number of high- and low-beam combined unit systems can be selected according to the design requirements. The positional relationship among the high-beam unit system, the low-beam unit system and the high- and low-beam combined unit system may also be arranged according to the design requirements; for example, the low-beam unit system may be arranged in the middle, the high-beam unit system may be arranged on the left, and the high- and low-beam combined unit system may be arranged on the right; alternatively, the high- and low-beam combined unit system may be arranged in the middle, the low-beam unit system may be arranged at the right side of the high- and low-beam combined unit system, and the high-beam unit system may be arranged at the left side of the high- and low-beam combined unit system; alternatively, the high-beam unit system may be arranged in the middle, the high- and low-beam combined unit system may be arranged on the right, and the low-beam unit system may be arranged on the left; alternatively, the high-beam unit system, the low-beam unit system and the high- and low-beam combined unit system may be arranged in other orders.

[0043] Furthermore, for example, the double-light module may employ a combination of a plurality of high- and low-beam combined unit systems or a combination of high-beam unit systems and high- and low-beam combined unit systems, in addition to the combination of low-beam unit systems and high- and low-beam combined unit systems or the combination of high-beam unit systems, low-beam unit systems and high- and low-beam combined unit systems as described above. All these combinations can achieve the technical effect of the double-light module.

[0044] In some embodiments, in the high- and low-beam combined unit system, the positional relationship between the high-beam light source 4 and the low-beam light source 2 may be arranged according to the design requirements. For example, in the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 is greater than the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1. Fig. 9 shows an embodiment in which the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 is greater than the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1. In Fig. 9, when viewed from above the high- and low-beam combined unit system, the high-beam light source 4 and the high-beam primary optical element 5 are approximately located on or near the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, as shown in Figs. 12 and 13, the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1 is smaller than or equal to 2 mm; moreover, the high-beam light source 4 is arranged at or in the vicinity of the focal point of the high- and low-beam combined lens unit 1, the distance between the high-beam light source 4 and the focal point of the high- and low-beam combined lens unit 1 is smaller than or equal to 2 mm, the light emitted by the high-beam light source 4 is collimated through the high-beam primary optical element 5 and then projected through the high- and low-beam combined lens unit 1 to form a light spot. The high- and low-beam combined lens unit 1 forms an inverted image of the high-beam light source 4 at the focal plane of the high- and low-beam combined lens unit 1; specifically, the light is emitted from the focal point, and becomes parallel to the optical axis 11 after passing through the high- and low-beam combined lens unit 1; the light is emitted from a position away from the focal point, and forms an included angle with respect to the optical axis 11 after passing through the high- and low-beam combined lens unit 1; the greater the distance of the high-beam light source 4 from the focal point, the greater the included angle is. Thus, in the embodiment shown in Fig. 9, as shown in Fig. 10, the bright spot at the center of the high-beam light pattern projected through the high- and low-beam combined lens unit 1 is in the vicinity of the HV intersection on the light distribution screen, i.e., the high-beam is more focused in the vicinity of the HV intersection; compared with the high-beam light source 4 and the high-beam primary optical element 5, the low-beam light source 2 and the low-beam primary optical element 3 are located at a position that is farther from the optical axis 11 of the high- and low-beam combined lens unit 1. Thus, in the embodiment in Fig. 9, as shown in Fig. 11, the bright spot at the center of the low-beam light pattern projected through the high- and low-beam combined lens unit 1 will be at a position that is farther from the HV intersection.

[0045] It may be noted that the light pattern shown in Figs. 10 and 11 refers to the shape of projection of the light of the vehicle lamp projected on the light distribution screen in front of the vehicle at a distance of 25 meters from the vehicle, and the area of the light distribution screen is usually divided by means of horizontal lines H and vertical lines V. As shown in Fig. 9, the high-beam light source 4 and the high-beam primary optical element 5 are located on or near the optical axis 11 of the high- and low-beam combined lens unit 1. As shown in Fig. 10, the bright spot at the center of the high-beam light pattern projected through the high- and low-beam combined lens unit 1 is located in the vicinity of the HV intersection on the light distribution screen. Thus, the illuminance at the HV intersection area can be improved, and the range of irradiation of the high-beam can be improved. Accordingly, as shown in Fig. 9, the low-beam light source 2 and the low-beam primary optical element 3 are located away from the optical axis 11 of the high- and low-beam combined lens unit 1, and as shown in Fig. 11, the bright spot at the center of the low-beam light pattern projected through the high- and low-beam combined lens unit 1 is located away from the HV intersection; for example, the bright spot is located at a position that deviates by 17 degrees from the HV intersection on the light distribution screen. Thus, the low-beam light pattern broadening energy is increased, and the width of irradiation of the low-beam is improved. It can be understood that Fig. 9 only illustrates an embodiment. When viewed from above the high- and low-beam combined unit system, the positions of arrangement of the high-beam light source 4 and the high-beam primary optical element 5 are not limited to the above-mentioned positions on the optical axis 11 of the high- and low-beam combined lens unit 1, but may also include positions near the optical axis 11 of the high- and low-beam combined lens unit 1. Accordingly, the low-beam light source 2 and the low-beam primary optical element 3 may also be selected according to the design requirements.

[0046] In the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 may be designed to be smaller than the distance between the high-beam light source 4 and the high- and low-beam combined lens unit 1; for example, as shown in Fig. 9, the positions of the low-beam light source 2 and the low-beam primary optical element 3 are interchanged with the positions of the high-beam light source 4 and the high-beam primary optical element 5; for example, when viewed from above the high- and low-beam combined unit system, the low-beam light source 2 and the low-beam primary optical element 3 are approximately located on or near the optical axis 11 of the high- and low-beam combined lens unit 1, i.e., the low-beam light source 2 is located on or near the optical axis 11 of the high- and low-beam combined lens unit 1; accordingly, the high-beam light source 4 and the high-beam primary optical element 5 are located further away from the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, the high-beam light source 4 is at a position further away from the optical axis 11 of the high- and low-beam combined lens unit 1. Alternatively, in the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 can be designed to be equal to the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, the low-beam light source 2 and the high-beam light source 4 are symmetrically arranged about the optical axis 11 of the high- and low-beam combined lens unit 1. Alternatively, the positional relationship between the low-beam light source 2 and the low-beam primary optical element 3 and the high-beam light source 4 and the high-beam primary optical element 5 may be arranged in other ways according to the design requirements.

[0047] In some embodiment, both the low-beam primary optical element 3 and the high-beam primary optical element 5 are reflectors. As shown in Fig. 4, for the low-beam primary optical element 3, a cutoff line forming structure 31 may be provided on the periphery of the low-beam primary optical element 3. For example, as shown in Fig. 5, the low-beam unit system in the middle may be used to improve the broadening of the left side of the low-beam light pattern; as shown in Fig. 8, the rightmost high- and low-beam combined unit system can be used to improve the broadening of the right side of the low-beam light pattern; as shown in Figs. 6 and 7, two low-beam unit systems between the above-mentioned low-beam unit system and the high- and low-beam combined unit system can be used to form a part of the low-beam light pattern that has a low-beam cutoff line; as shown in Fig. 11, thus, an overall low-beam light pattern is formed. In addition, cutoff line forming structures 31 may be provided on the periphery of some or all low-beam primary elements 5 according to the requirement, so that all low-beam light patterns form a required light pattern having a low-beam cutoff line after the low-beam light patterns are superposed on each other. The surface of the reflector may be parabolic or ellipsoidal, thereby a parabolic reflector or an ellipsoidal reflector is formed. For example, as shown in Fig. 1, the low-beam primary optical element 3 of the low-beam unit system in the middle may be an ellipsoidal reflector, which is beneficial to improving the horizontal broadening of the light pattern; the low-beam primary optical element 3 of the low-beam unit system, the high-beam primary optical element 5 of the high-beam unit system, and the low-beam primary optical element 3 and the high-beam primary optical element 5 of the high- and low-beam combined unit system on the two sides may be parabolic reflectors, which are beneficial to focusing a bright spot.

[0048] In some embodiments, the low-beam primary optical element 3 and / or the high-beam primary optical element 5 corresponding to the same lens unit are structurally linked up into an entire assembly or are integrally formed, to collimate corresponding light sources respectively.

[0049] In some embodiments, the lens units sequentially arranged in the horizontal direction are linked up to form an entire assembly or are integrally formed, and the light emergent surfaces of the lens units may be made integrally into free-form curved surfaces, so as to produce light incident surfaces of different lens units according to the focal length configuration, and the lens units are used for imaging for corresponding primary optical elements. Specifically, the light emergent surface of the low-beam lens unit 6 of the low-beam unit system, the light emergent surface of the high-beam lens unit 7 of the high-beam unit system and the light emergent surface of the high- and low-beam combined lens unit 1 of the high- and low-beam combined unit system may be made into free-form curved surfaces sequentially, so that the low-beam lens unit 6 of the low-beam unit system, the high-beam lens unit 7 of the high-beam unit system, and the high- and low-beam combined lens unit 1 of the high- and low-beam combined unit system are linked up into an entire assembly or are integrally formed; the integral lens formed in that way may be produced by internal injection molding.

[0050] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems. For example, as shown in Fig. 1, the thickness of the low-beam lens unit 6 located in the middle is smaller than the thicknesses of the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 located on two sides; alternatively, as shown in Fig. 9, the thickness of the low-beam lens unit 6 in the middle is smaller than the thickness of the low-beam lens unit 6 and the high- and low-beam combined lens unit 1 on the two sides. It can be understood that the sequential arrangement of the unit optical systems is not limited to specific arrangements in which a low-beam unit system is arranged in the middle. Therefore, in the case that a high-beam unit system or a high- and low-beam combined unit system is arranged in the middle, the thickness of the corresponding high-beam lens unit 7 or the thickness of the high- and low-beam combined lens unit 1 may be smaller than the thicknesses of the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 arranged on the two sides. Thus, such a lens thickness design can provide a more esthetic appearance on one hand, and is conductive to the production of the lenses by integral injection molding.

[0051] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction. For example, as shown in Figs. 17 to 20, when viewed from above, the light incident surface of the low-beam lens unit 6 located in the middle focuses the light only in the vertical direction, so that the low-beam cutoff line of the formed low-beam light pattern is clearer. Specifically, Fig. 21 is a top view of the low-beam lens unit 6 located in the middle, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is in an arc shape that is inwardly recessed in the horizontal direction; Fig. 22 is a sectional view of the low-beam lens unit 6 in Fig. 21 in the vertical direction, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is approximately linear in the vertical direction; Fig. 23 is a side view of the low-beam lens unit 6 located in the middle, Fig. 24 is a sectional view of the low-beam lens 6 in Fig. 23 in the horizontal direction, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is in an arc shape that is inwardly recessed in the horizontal direction, so that an effect that the light incident surface of the low-beam lens unit 6 located in the middle focuses the light only in the vertical direction can be achieved. Of course, the unit optical system corresponding to the lens unit in the middle is not limited to the above-mentioned low-beam unit system; alternatively, it may be the high-beam unit system or the high- and low-beam combined unit system.

[0052] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the outermost unit optical system has at least two primary optical elements. As shown in Fig. 1, the outermost unit optical systems are a high-beam unit system and a high- and low-beam combined unit system, respectively. The high-beam unit system has two high-beam primary optical elements 5, and the high- and low-beam combined unit system has one low-beam primary optical element 3 and one high-beam primary optical element 5. If the above-mentioned high-beam unit system or the high- and low-beam combined unit system is arranged in the middle, the spatial layout will be congested, since the high-beam unit system has two high-beam primary optical elements 5 or the near-beam combined unit system has one low-beam primary optical element 3 and one high-beam primary optical element 5; consequently, interference among the unit optical system in the arrangement may occur. However, by arranging the above-mentioned high-beam unit system or the near-beam combined unit system at the outermost position, the effective space of the system can be effectively increased, and the arrangement is more reasonable. Likewise, as shown in Fig. 16, the high- and low-beam combined unit system is arranged at the outermost position, thereby the effective space of the system can be effectively increased, and the arrangement is more reasonable.

[0053] In some embodiments, a baffle 8 is provided between every two adjacent unit optical systems, so as to separate the light sources and reflectors of different unit optical systems and prevent light channeling between the unit optical systems. For example, as shown in Fig. 1 or Fig. 9, a baffle 8 is provided between adjacent low-beam unit system, high-beam unit system and high- and low-beam combined unit system, so that the adjacent low-beam unit system, high-beam unit system and high- and low-beam combined unit system are separated from each other. The baffles 8 may be integrally formed with the reflectors, for example, a baffle 8 is integrally formed with the corresponding low-beam primary optical element 3, and a baffle 8 is integrally formed with the corresponding high-beam primary optical element 5. Alternatively, a heat dissipation structures, such as a heat radiator, may be provided, and each baffle 8 is integrally formed with a heat radiator.

[0054] In some embodiments, the light incident surface of the lens unit corresponding to each unit optical system is provided with a light diffusion structure 9. For example, as shown in Fig. 2, the light incident surface of the low-beam lens unit 6 corresponding to the low-beam unit system, the light incident surface of the high-beam lens unit 7 corresponding to the high-beam unit system, and the light incident surface of the high- and low-beam combined lens unit 1 corresponding to the high- and low-beam combined unit system are provided with a light diffusion structure 9 respectively, and the light diffusion structure 9 is used to diffuse the light. Specifically, the light diffusion structure 9 may be a pattern, which may be a structure suitable for light diffusion.

[0055] In some embodiments, both the low-beam light source 2 and the high-beam light source 4 are placed on the same circuit board.

[0056] To make the technical concept of the present disclosure understood better, the following description is provided in connection with comprehensive technical features.

[0057] As shown in Figs. 1 to 16, in a preferred embodiment of the present disclosure, a double-light module for realizing a low-beam function and a high-beam function is provided. The double-light module comprises a lens and a plurality of unit optical systems, wherein each of the unit optical systems comprises a primary optical element and a light source, and the unit optical systems are sequentially arranged in the horizontal direction; the lens has a plurality of lens units that are linked up sequentially, and each unit optical system is arranged corresponding to a lens unit respectively; the lens units may be classified into high- and low-beam combined lens units 1, low-beam lens units 6 and high-beam lens units 7 according to their functions; in the unit optical systems, some unit optical systems may be low-beam unit systems, some unit optical systems may be high-beam unit systems, and some unit optical systems may be high- and low-beam combined unit systems, as long as at least one of the unit optical systems is a high- and low-beam combined unit system. As shown in Fig. 1, among the unit optical systems that are arranged sequentially in the horizontal direction, three low-beam unit systems are arranged in the middle, three high-beam unit systems are arranged on the left side, and one high- and low-beam combined unit system is arranged on the right side. Alternatively, as shown in Fig. 14, among the unit optical systems that are arranged sequentially in the horizontal direction, two low-beam unit systems are arranged in the middle, and a high- and low-beam combined unit system is arranged on the left side and right side of the two low-beam unit systems. The low-beam unit system comprises at least one low-beam light source 2 and at least one low-beam primary optical element 3, and each low-beam primary optical element 3 is configured to collimate the light emitted by the corresponding low-beam light source 2 to the low-beam lens unit 6 and project the light through the low-beam lens unit 6 to form an image. The high-beam unit system comprises at least one high-beam light source 4 and at least one high-beam primary optical element 5, and each high-beam primary optical element 5 is configured to collimate the light emitted by the corresponding high-beam light source 4 to the high-beam lens unit 7 and project the light through the high-beam lens unit 7 to form an image. The high- and low-beam combined unit system comprises a low-beam light source 2, a low-beam primary optical element 3, a high-beam light source 4 and a high-beam primary optical element 5, wherein the low-beam primary optical element 3 is configured to collimate the light emitted by the low-beam light source 2 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image, and the high-beam primary optical element 5 is configured to collimate the light emitted by the high-beam light source 4 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image. Both the low-beam primary optical element 3 and the high-beam primary optical element 5 are reflectors. Specifically, the reflectors may be parabolic reflectors or ellipsoidal reflectors. The lens units corresponding to the unit optical systems are linked up to form an entire assembly or are integrally formed, and the light emergent surfaces of the lens units may be made integrally into free-form curved surfaces, so as to produce light incident surfaces of different lens units according to the focal length configuration, and the lens units are used for imaging for corresponding reflectors. Specifically, the light emergent surface of the low-beam lens unit 6 and the light emergent surface of the high- and low-beam combined lens unit 1 may be made into free-form curved surfaces in sequence, so that the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 are sequentially linked up into an entire assembly or are integrally formed; the integral lens formed in that way may be produced by internal injection molding. Among the unit optical systems that are sequentially arranged, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems. Among the unit optical systems that are sequentially arranged, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction. A baffle 8 is provided between every two adjacent unit optical systems, so as to separate the light sources and reflectors of different unit optical systems and prevent light channeling between the unit optical systems. The light incident surface of the lens of each unit optical system is provided with a light diffusion structure 9. The light diffusion structure 9 may be a pattern, which may be a structure suitable for light diffusion.

[0058] In the low-beam mode and the high-beam mode, corresponding lens can be lit up. For the double-light module, in the low-beam mode, the lens unit corresponding to the high- and low-beam combined unit system can be lit up, and a good vehicle lamp lighting appearance can be obtained without additional cost and structure for an accompanying high-beam lighting effect in the low-beam mode. In the low-beam mode, only the low-beam light source 6 in the high- and low-beam combined unit system is lit up, and the low-beam light source 6 is more dispersed, thereby the thermal risk of the system can be reduced, and the optical efficiency of the low-beam can be improved. The dispersion angle of the low-beam is large enough, so that low-beam broadening can be effectively improved.

[0059] In an embodiment of the present disclosure, a vehicle lamp is further provided. The vehicle lamp is provided with the above-mentioned double-light module, which is to say, the vehicle lamp employs all technical schemes of the above embodiments of the double-light module. Hence, the vehicle lamp at least has all the beneficial effects achieved by the technical schemes of the above embodiments of the double-light module.

[0060] In an embodiment of the present disclosure, a vehicle is further provided. The vehicle is provided with the above-mentioned vehicle lamp, which is to say, the vehicle employs all technical schemes of the above embodiments of the vehicle lamp. Hence, the vehicle at least has all the beneficial effects achieved by the technical schemes of the above embodiments of the vehicle lamp.

[0061] While some preferred embodiments of the present disclosure are described above in detail with reference to the accompanying drawings, the present disclosure is not limited to those embodiments. Various simple variations may be made to the technical scheme of the present disclosure, including combinations of the specific technical features in any appropriate form, within the scope of the technical ideal of the present disclosure. To avoid unnecessary repetitions, various possible combinations are not described specifically in the present disclosure. However, such simple variations and combinations shall also be deemed as having been disclosed herein and falling in the scope of protection of the present disclosure.

Examples

Embodiment Construction

[0028]The embodiments of the present disclosure will be further described below in detail in examples with reference to the accompanying drawings. The following detailed description of the embodiments and drawings are used to illustrate the principle of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, is not limited to the specific embodiments disclosed herein, but includes all technical schemes falling within the scope of the claims.

[0029]These embodiments are provided to make the present disclosure understood thoroughly and completely, and fully convey the scope of the present disclosure to those skilled in the art. It may be noted: unless otherwise specified, the relative arrangement of components and steps, the compositions of materials, numerical expressions and numerical values set forth in these examples may be interpreted as merely illustrative rather than limiting.

[0...

CROSS REFERENCE TO RELATED APPLICATIONS

[0001] The present application claims the benefits of China Patent Application No. 202311766680.3 and 202323495647.X filed on Dec. 20, 2023, the contents of which are incorporated herein by reference.FIELD

[0002] The present disclosure relates to an illumination module, in particular to a double-light module. In addition, the present disclosure further relates to a vehicle lamp and a vehicle.BACKGROUND

[0003] In recent years, as automobiles are developed in a trend of automobile intellectualization and the requirements in relevant laws and regulations are enhanced continuously, corresponding adjustments and progresses have been made in the field of vehicle lamps.

[0004] In the prior art, in order to meet the requirement for luminous flux, a plurality of LEDs are placed in a unit cell. However, with the plurality of LEDs placed together, the temperature of the unit is higher during the operation, leading to a high thermal risk; moreover, the plurality of LEDs are placed together too densely, resulting in an inadequate light dispersion angle. Therefore, the light pattern broadening requirement can't be met, and the cost is high.

[0005] Therefore, it is desirable to design a novel double-light module, so as to overcome or alleviate the above-mentioned technical problems.SUMMARY

[0006] A first object of the present disclosure is to provide a double-light module, which can reduce the thermal risk of the system, effectively improve light pattern broadening, and has a relatively low cost. A second object of the present disclosure is to provide a vehicle lamp, and a third object of the present disclosure is to provide a vehicle.

[0007] In order to attain the above-mentioned objects, in a first aspect, the present disclosure provides a double-light module, which comprises a lens and a plurality of unit optical systems, wherein the unit optical systems are transversely arranged in sequence, the unit optical systems each comprise primary optical elements and light sources, the lens has a plurality of lens units that are linked up sequentially, and each unit optical system is respectively arranged corresponding to a lens unit; at least one of the unit optical systems is a high- and low-beam combined unit system, which comprises at least one low-beam light source, at least one low-beam primary optical element, at least one high-beam light source, and at least one high-beam primary optical element; the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit, the low-beam primary optical element is configured to collimate the light emitted by the low-beam light source to the high- and low-beam combined lens unit and project the light through the high- and low-beam combined lens unit to form an image; and the high-beam primary optical element is configured to collimate the light emitted by the high-beam light source to the high- and low-beam combined lens unit and project the light through the high- and low-beam combined lens unit to form an image.

[0008] In some embodiments, at least one of the unit optical systems is a low-beam unit system, which comprises at least one low-beam light source and at least one low-beam primary optical element; the low-beam unit system corresponds to a low-beam lens unit, and the low-beam primary optical element is configured to collimate the light emitted by the corresponding low-beam light source to the low-beam lens unit and project the light through the low-beam lens unit to form an image.

[0009] In some embodiments, at least one of the unit optical systems is a high-beam unit system, which comprises at least one high-beam light source and at least one high-beam primary optical element; the high-beam unit system corresponds to a high-beam lens unit, and the high-beam primary optical element is configured to collimate the light emitted by the corresponding high-beam light source to the high-beam lens unit and project the light through the high-beam lens unit to form an image.

[0010] In some embodiments, both the low-beam primary optical element and the high-beam primary optical element are reflectors.

[0011] In some embodiments, the reflectors are parabolic reflectors or ellipsoidal reflectors.

[0012] In some embodiments, a cutoff line forming structure for forming a low-beam cutoff line is arranged on the periphery of the low-beam primary optical element.

[0013] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems.

[0014] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction.

[0015] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the outermost unit optical system has at least two primary optical elements.

[0016] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is greater than the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0017] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is smaller than the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0018] In some embodiments, in the high- and low-beam combined unit system, the distance between the low-beam light source and an optical axis of the high- and low-beam combined lens unit is equal to the distance between the high-beam light source and the optical axis of the high- and low-beam combined lens unit.

[0019] In some embodiments, a baffle is arranged between every two adjacent unit optical systems.

[0020] In some embodiments, the light incident surface of at least one of the lens units is provided with a light diffusion structure.

[0021] In some embodiments, the light diffusion structure is a pattern arranged on the light incident surface of the lens unit.

[0022] In a second aspect, the present disclosure provides a vehicle lamp, which is provided with the above-mentioned double-light module.

[0023] In a third aspect, the present disclosure provides a vehicle, which is provided with the above-mentioned vehicle lamp.

[0024] According to the above technical scheme, in the present disclosure, a plurality of unit optical systems are sequentially arranged in the horizontal direction, and the unit optical systems are independent, correspond to different lens units, and are used to realize different functions respectively; in addition, at least one high- and low-beam combined unit system exists, so that the light sources are more dispersed, and the thermal risk of the system can be reduced; moreover, the light pattern broadening can be effectively improved, and the cost is relatively low.

[0025] Other features and advantages of the present disclosure will be further detailed below in some embodiments.BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To explain the technical scheme in the embodiments of the present disclosure more clearly, the drawings to be used in the description of the embodiments or the prior art will be introduced below briefly. Obviously, the drawings used in the description below only illustrate some embodiments of the present disclosure, and those having ordinary skills in the art can work out other drawings based on these drawings without expending any creative labor. Fig. 1 is a schematic structural diagram of the double-light module in a first embodiment of the present disclosure; Fig. 2 is a first schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 3 is a second schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 4 is a third schematic diagram of the three-dimensional structure of the double-light module in the first embodiment of the present disclosure; Fig. 5 is a schematic diagram of the effect of the projected low-beam light pattern formed by the low-beam unit system in the middle of the double-light module in the first embodiment of the present disclosure; Fig. 6 is a schematic diagram of the effect of the projected low-beam light pattern formed by the first right low-beam unit system of the double-light module in the first embodiment of the present disclosure; Fig. 7 is a schematic diagram of the effect of the projected low-beam light pattern formed by the second right low-beam unit system of the double-light module in the first embodiment of the present disclosure; Fig. 8 is a schematic diagram of the effect of the projected low-beam light pattern formed by the rightmost high- and low-beam combined unit system of the double-light module in the first embodiment of the present disclosure; Fig. 9 is a schematic diagram of the light path of the high- and low-beam combined unit system in the specific embodiment of the present disclosure; Fig. 10 is a schematic diagram of the effect of the projected high-beam light pattern formed by the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 11 is a schematic diagram of the effect of the projected low-beam light pattern formed by the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 12 is a first schematic diagram of the high-beam light path of the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 13 is a second schematic diagram of the high-beam light path of the high- and low-beam combined unit system in an embodiment of the present disclosure; Fig. 14 is a schematic structural diagram of the double-light module in a second embodiment of the present disclosure; Fig. 15 is a first schematic diagram of the three-dimensional structure of the double-light module in the second embodiment of the present disclosure; Fig. 16 is a second schematic diagram of the three-dimensional structure of the double-light module in the second embodiment of the present disclosure; Fig. 17 is a first structural schematic diagram of the low-beam unit system in the middle and the corresponding low-beam lens unit in the double-light module in an embodiment of the present disclosure; Fig. 18 is a sectional view A-A of the structure in Fig. 17; Fig. 19 is a second structural schematic diagram of the low-beam unit system in the middle and the corresponding low-beam lens unit in the double-light module in an embodiment of the present disclosure; Fig. 20 is a sectional view B-B of the structure in Fig. 19; Fig. 21 is a first structural schematic diagram of the low-beam lens unit in the middle in the double-light module in an embodiment of the present disclosure; Fig. 22 is a sectional view C-C of the structure in Fig. 21; Fig. 23 is a second structural schematic diagram of the low-beam lens unit in the middle in the double-light module in an embodiment of the present disclosure; Fig. 24 is a sectional view D-D of the structure in Fig. 23. Reference Numerals

[0027] 1 -high- and low-beam combined lens unit11 -optical axis2 -low-beam light source3 -low-beam primary optical element31 -cutoff line forming structure4 -high-beam light source5 -high-beam primary optical element6 -low-beam lens unit7 -high-beam lens unit8 -baffle9 -light diffusion structure DETAILED DESCRIPTION

[0028] The embodiments of the present disclosure will be further described below in detail in examples with reference to the accompanying drawings. The following detailed description of the embodiments and drawings are used to illustrate the principle of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, is not limited to the specific embodiments disclosed herein, but includes all technical schemes falling within the scope of the claims.

[0029] These embodiments are provided to make the present disclosure understood thoroughly and completely, and fully convey the scope of the present disclosure to those skilled in the art. It may be noted: unless otherwise specified, the relative arrangement of components and steps, the compositions of materials, numerical expressions and numerical values set forth in these examples may be interpreted as merely illustrative rather than limiting.

[0030] It may be noted that, in order to ease and simplify the description of the present disclosure, generally, the installation orientation of the double-light module is essentially the same as that of the vehicle lamp when the vehicle lamp is actually used on a vehicle. For example, the lens is in front, and correspondingly, the primary optical element is behind. The horizontal arrangement of each unit optical system means that each unit optical system is arranged in a left-right direction, and the vertical arrangement means that it is arranged in the up-down direction. In the description of the present disclosure, the indicated orientational or positional relations are used only to ease and simplify the description of the present disclosure, rather than indicating or implying that the involved device or component may have a specific orientation or may be constructed and operated in a specific orientation. Therefore, the use of these terms shall not be deemed as constituting any limitation to the present disclosure. Once the absolute position of the described object is changed, the relative positional relationship may also change accordingly.

[0031] In addition, the word "comprise", "include" or the like used herein means that the element set forth before the word encompasses the elements set forth after the word, and does not exclude the possibility of encompassing other elements.

[0032] In addition, it may be noted: in the description of the present disclosure, unless otherwise specified and defined explicitly, the terms "install", "interconnect", and "connect", etc. shall be interpreted in their general meanings, for example, a connection may be a fixed connection, detachable connection, or integral connection; or may be a direct connection or indirect connection via an intermediate medium. Those having ordinary skills in the prior art may comprehend the specific meanings of the terms in the present disclosure in their contexts. When it is mentioned that a specific component is located between a first component and a second component, an intermediate device may or may not exist between the specific device and the first device or the second device.

[0033] All terms used in the present disclosure have the same meanings generally understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. It may also be understood that the terms defined in, for example, general dictionaries may be interpreted as having meanings consistent with their meanings in the contexts of related arts, and may not be interpreted in an idealistic or extremely formal sense, unless explicitly defined herein.

[0034] Techniques, methods and apparatuses existing to those having ordinary skills in the art may not be discussed herein in detail, but, where appropriate, those techniques, methods and apparatuses shall be considered as a part of the specification.

[0035] As shown in Figs. 1 to 3 and 14 to 16, in an embodiment of the present disclosure, a double-light module for realizing a low-beam function and a high-beam function is provided. The double-light module comprises a lens and a plurality of unit optical systems, wherein each of the unit optical systems comprises primary optical elements and light sources, and the unit optical systems are transversely arranged in sequence; the lens has a plurality of lens units connected in sequence, and each unit optical system is arranged corresponding to a lens unit respectively; at least one of the unit optical systems is a high- and low-beam combined unit system, which comprises a low-beam primary optical element 3 and a high-beam primary optical element 5, and a low-beam light source 2 and a high-beam light source 4; the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit 1, the low-beam primary optical element 3 is configured to collimate the light emitted by the low-beam light source 2 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image, and the high-beam primary optical element 5 is configured to collimate the light emitted by the high-beam light source 4 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image.

[0036] Based on the above technical scheme, in the double-light module in the present disclosure, a plurality of unit optical systems are sequentially arranged in the horizontal direction, and the unit optical systems are independent, correspond to different lens units, and are used to realize different functions respectively; thus, the light sources are more dispersed, and the thermal risk of the system can be reduced. Moreover, at least one of the unit optical systems is a high- and low-beam combined unit system, which has a low-beam light source 2, a low-beam primary optical element 3, a high-beam light source 4, and a high-beam primary optical element 5; the light emitted by the low-beam light source 2 passes through the low-beam primary optical element 3 and the high- and low-beam combined lens unit 1 and then is used to form a low-beam light pattern, and the light emitted by the high-beam light source 4 passes through the high-beam primary optical element 5 and the high- and low-beam combined lens unit 1 and then is used to form a high-beam light pattern; the low-beam and the high-beam share the high- and low-beam combined lens unit 1. A low-beam light source 2 and a low-beam primary optical element 3 are added in the high-beam unit system without affecting the high-beam, thereby the high-beam unit system is turned into a high- and low-beam combined unit system. With this design, the broadening of the low-beam light pattern can be enhanced; in addition, since other low-beam unit systems are not provided with a low-beam light source 2 and a low-beam primary optical element 3 additionally, the low-beam light sources 2 are not arranged too densely, and a thermal risk can be avoided. Therefore, compared with the prior art in which a low-beam module is provided additionally to enhance the broadening of the low-beam light pattern, the technical scheme of the present disclosure is simple and reliable, and has a lower cost.

[0037] It may be noted that the lens units can be classified into high- and low-beam combined lens units 1, low-beam lens units 6 and high-beam lens units 7, according to the different functions implemented by the lens units.

[0038] In an existing high- and low-beam illumination module, the lens area corresponding to the high-beam module is not lit in the low-beam mode, and the lighting appearance of the vehicle lamp is not satisfactory. In order to obtain a good lighting appearance, it is necessary to actively light up the lens area corresponding to the high-beam module to achieve an accompanying lighting effect of the high-beam in the low-beam mode. Such an approach not only results in energy waste, but also requires additional components for realizing accompanying lighting, and the cost is increased. For example, in the double-light module in the present disclosure, some the unit optical systems may be selected as low-beam unit systems, and the rest unit optical systems may be used as high- and low-beam combined unit systems. In the high- and low-beam combined unit system, the high- and low-beam combined lens unit 1 is shared in the low-beam mode (the low-beam light source 2 and the low-beam primary optical element 3 are used to form a low-beam light pattern) and the high-beam mode (the high-beam light source 4 and the high-beam primary optical element 5 are used to form a high-beam light pattern); in the low-beam mode, the corresponding lens unit and the high- and low-beam combined lens unit 1 can be lit up together; thus, no additional component for attaining an accompany high-beam lighting effect in the low-beam mode is required, and a good vehicle lamp lighting appearance is obtained.

[0039] Specifically, Figs. 14-16 provide an embodiment of the double-light module. Two low-beam unit systems are arranged in the middle, and a high- and low-beam combined unit system is arranged on the left and right sides of the two low-beam unit systems respectively; the low-beam unit system comprises at least one low-beam light source 2 and at least one low-beam primary optical element 3, and the low-beam unit system corresponds to a low-beam lens unit 6; each low-beam primary optical element 3 is configured to collimate the light emitted by the corresponding low-beam light source 2 to the low-beam lens unit 6 and form an image through the low-beam lens unit 6. In the low-beam mode, the low-beam light source 2 in the low-beam unit system is lit up, and the low-beam light source 2 in the high- and low-beam combined unit system is also lit up at the same time; with the low-beam light source 2 in the high- and low-beam combined unit system, the light dispersion angle of the low-beam is large enough, and the broadening of the low-beam light pattern can be enhanced; moreover, since the low-beam light source 2 in the high- and low-beam combined unit system is not provided in the low-beam unit system, the low-beam light sources 2 are arranged in a more dispersed form, the thermal risk of the system can be reduced, while the optical efficiency of the low-beam can be improved.

[0040] It may be noted that the number of low-beam light sources 2 and the number of low-beam primary optical elements 3 arranged in the low-beam unit system can be selected according to the design requirements. Moreover, the number of low-beam unit systems and the number of high- and low-beam combined unit systems can be selected according to the design requirements. The positional relationship between the low-beam unit system and the high- and low-beam combined unit system may be selected and arranged according to the design requirements. For example, the low-beam unit system may be arranged in the middle, while the high- and low-beam combined unit system may be arranged at the outer side of low-beam unit system; alternatively, the high- and low-beam combined unit system may be arranged in the middle, while the low-beam unit system may be arranged at the other side of the high- and low-beam combined unit system; alternatively, the low-beam unit system and the high- and low-beam combined unit system may be arranged in other orders.

[0041] In some embodiments, high-beam unit systems, low-beam unit systems and high- and low-beam combined unit systems may be arranged in the double-light module, some unit optical systems may be selected as the high-beam unit systems, some unit optical systems may be selected as the low-beam unit systems, and the rest unit optical systems may be selected as the high- and low-beam combined unit systems. Figs. 1-3 provide another embodiment of the double-light module, in which three low-beam unit systems are arranged in the middle, three high-beam unit systems are arranged on the left, and one high- and low-beam combined unit system is arranged on the right. Specifically, the high-beam unit system comprises at least one high-beam light source 4 and at least one high-beam primary optical element 5; the high-beam unit system corresponds to a high-beam lens unit 7, and each high-beam primary optical element 5 is configured to collimate the light emitted by the corresponding high-beam light source 4 to the high-beam lens unit 7 and forms an image through the high-beam lens unit 7. In the high-beam mode, the high-beam light source 4 in the high-beam unit system is lit up, and the high-beam light source 4 in the high- and low-beam combined unit system is also lit up at the same time; thus, the light dispersion angle of the high-beam is large enough, and the broadening of the high-beam light pattern can be enhanced; moreover, since the high-beam light source 4 in the high- and low-beam combined unit system is not provided in the high-beam unit system, the high-beam light sources 4 are arranged in a more dispersed form, the thermal risk of the system can be reduced, while the optical efficiency of the high-beam can be improved.

[0042] It may be noted that the number of high-beam light sources 4 and the number of high-beam primary optical elements 5 arranged in the high-beam unit system can be selected according to the design requirements. Moreover, the number of high-beam unit systems, the number of low-beam unit systems, and the number of high- and low-beam combined unit systems can be selected according to the design requirements. The positional relationship among the high-beam unit system, the low-beam unit system and the high- and low-beam combined unit system may also be arranged according to the design requirements; for example, the low-beam unit system may be arranged in the middle, the high-beam unit system may be arranged on the left, and the high- and low-beam combined unit system may be arranged on the right; alternatively, the high- and low-beam combined unit system may be arranged in the middle, the low-beam unit system may be arranged at the right side of the high- and low-beam combined unit system, and the high-beam unit system may be arranged at the left side of the high- and low-beam combined unit system; alternatively, the high-beam unit system may be arranged in the middle, the high- and low-beam combined unit system may be arranged on the right, and the low-beam unit system may be arranged on the left; alternatively, the high-beam unit system, the low-beam unit system and the high- and low-beam combined unit system may be arranged in other orders.

[0043] Furthermore, for example, the double-light module may employ a combination of a plurality of high- and low-beam combined unit systems or a combination of high-beam unit systems and high- and low-beam combined unit systems, in addition to the combination of low-beam unit systems and high- and low-beam combined unit systems or the combination of high-beam unit systems, low-beam unit systems and high- and low-beam combined unit systems as described above. All these combinations can achieve the technical effect of the double-light module.

[0044] In some embodiments, in the high- and low-beam combined unit system, the positional relationship between the high-beam light source 4 and the low-beam light source 2 may be arranged according to the design requirements. For example, in the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 is greater than the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1. Fig. 9 shows an embodiment in which the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 is greater than the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1. In Fig. 9, when viewed from above the high- and low-beam combined unit system, the high-beam light source 4 and the high-beam primary optical element 5 are approximately located on or near the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, as shown in Figs. 12 and 13, the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1 is smaller than or equal to 2 mm; moreover, the high-beam light source 4 is arranged at or in the vicinity of the focal point of the high- and low-beam combined lens unit 1, the distance between the high-beam light source 4 and the focal point of the high- and low-beam combined lens unit 1 is smaller than or equal to 2 mm, the light emitted by the high-beam light source 4 is collimated through the high-beam primary optical element 5 and then projected through the high- and low-beam combined lens unit 1 to form a light spot. The high- and low-beam combined lens unit 1 forms an inverted image of the high-beam light source 4 at the focal plane of the high- and low-beam combined lens unit 1; specifically, the light is emitted from the focal point, and becomes parallel to the optical axis 11 after passing through the high- and low-beam combined lens unit 1; the light is emitted from a position away from the focal point, and forms an included angle with respect to the optical axis 11 after passing through the high- and low-beam combined lens unit 1; the greater the distance of the high-beam light source 4 from the focal point, the greater the included angle is. Thus, in the embodiment shown in Fig. 9, as shown in Fig. 10, the bright spot at the center of the high-beam light pattern projected through the high- and low-beam combined lens unit 1 is in the vicinity of the HV intersection on the light distribution screen, i.e., the high-beam is more focused in the vicinity of the HV intersection; compared with the high-beam light source 4 and the high-beam primary optical element 5, the low-beam light source 2 and the low-beam primary optical element 3 are located at a position that is farther from the optical axis 11 of the high- and low-beam combined lens unit 1. Thus, in the embodiment in Fig. 9, as shown in Fig. 11, the bright spot at the center of the low-beam light pattern projected through the high- and low-beam combined lens unit 1 will be at a position that is farther from the HV intersection.

[0045] It may be noted that the light pattern shown in Figs. 10 and 11 refers to the shape of projection of the light of the vehicle lamp projected on the light distribution screen in front of the vehicle at a distance of 25 meters from the vehicle, and the area of the light distribution screen is usually divided by means of horizontal lines H and vertical lines V. As shown in Fig. 9, the high-beam light source 4 and the high-beam primary optical element 5 are located on or near the optical axis 11 of the high- and low-beam combined lens unit 1. As shown in Fig. 10, the bright spot at the center of the high-beam light pattern projected through the high- and low-beam combined lens unit 1 is located in the vicinity of the HV intersection on the light distribution screen. Thus, the illuminance at the HV intersection area can be improved, and the range of irradiation of the high-beam can be improved. Accordingly, as shown in Fig. 9, the low-beam light source 2 and the low-beam primary optical element 3 are located away from the optical axis 11 of the high- and low-beam combined lens unit 1, and as shown in Fig. 11, the bright spot at the center of the low-beam light pattern projected through the high- and low-beam combined lens unit 1 is located away from the HV intersection; for example, the bright spot is located at a position that deviates by 17 degrees from the HV intersection on the light distribution screen. Thus, the low-beam light pattern broadening energy is increased, and the width of irradiation of the low-beam is improved. It can be understood that Fig. 9 only illustrates an embodiment. When viewed from above the high- and low-beam combined unit system, the positions of arrangement of the high-beam light source 4 and the high-beam primary optical element 5 are not limited to the above-mentioned positions on the optical axis 11 of the high- and low-beam combined lens unit 1, but may also include positions near the optical axis 11 of the high- and low-beam combined lens unit 1. Accordingly, the low-beam light source 2 and the low-beam primary optical element 3 may also be selected according to the design requirements.

[0046] In the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 may be designed to be smaller than the distance between the high-beam light source 4 and the high- and low-beam combined lens unit 1; for example, as shown in Fig. 9, the positions of the low-beam light source 2 and the low-beam primary optical element 3 are interchanged with the positions of the high-beam light source 4 and the high-beam primary optical element 5; for example, when viewed from above the high- and low-beam combined unit system, the low-beam light source 2 and the low-beam primary optical element 3 are approximately located on or near the optical axis 11 of the high- and low-beam combined lens unit 1, i.e., the low-beam light source 2 is located on or near the optical axis 11 of the high- and low-beam combined lens unit 1; accordingly, the high-beam light source 4 and the high-beam primary optical element 5 are located further away from the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, the high-beam light source 4 is at a position further away from the optical axis 11 of the high- and low-beam combined lens unit 1. Alternatively, in the high- and low-beam combined unit system, the distance between the low-beam light source 2 and the optical axis 11 of the high- and low-beam combined lens unit 1 can be designed to be equal to the distance between the high-beam light source 4 and the optical axis 11 of the high- and low-beam combined lens unit 1, which is to say, the low-beam light source 2 and the high-beam light source 4 are symmetrically arranged about the optical axis 11 of the high- and low-beam combined lens unit 1. Alternatively, the positional relationship between the low-beam light source 2 and the low-beam primary optical element 3 and the high-beam light source 4 and the high-beam primary optical element 5 may be arranged in other ways according to the design requirements.

[0047] In some embodiment, both the low-beam primary optical element 3 and the high-beam primary optical element 5 are reflectors. As shown in Fig. 4, for the low-beam primary optical element 3, a cutoff line forming structure 31 may be provided on the periphery of the low-beam primary optical element 3. For example, as shown in Fig. 5, the low-beam unit system in the middle may be used to improve the broadening of the left side of the low-beam light pattern; as shown in Fig. 8, the rightmost high- and low-beam combined unit system can be used to improve the broadening of the right side of the low-beam light pattern; as shown in Figs. 6 and 7, two low-beam unit systems between the above-mentioned low-beam unit system and the high- and low-beam combined unit system can be used to form a part of the low-beam light pattern that has a low-beam cutoff line; as shown in Fig. 11, thus, an overall low-beam light pattern is formed. In addition, cutoff line forming structures 31 may be provided on the periphery of some or all low-beam primary elements 5 according to the requirement, so that all low-beam light patterns form a required light pattern having a low-beam cutoff line after the low-beam light patterns are superposed on each other. The surface of the reflector may be parabolic or ellipsoidal, thereby a parabolic reflector or an ellipsoidal reflector is formed. For example, as shown in Fig. 1, the low-beam primary optical element 3 of the low-beam unit system in the middle may be an ellipsoidal reflector, which is beneficial to improving the horizontal broadening of the light pattern; the low-beam primary optical element 3 of the low-beam unit system, the high-beam primary optical element 5 of the high-beam unit system, and the low-beam primary optical element 3 and the high-beam primary optical element 5 of the high- and low-beam combined unit system on the two sides may be parabolic reflectors, which are beneficial to focusing a bright spot.

[0048] In some embodiments, the low-beam primary optical element 3 and / or the high-beam primary optical element 5 corresponding to the same lens unit are structurally linked up into an entire assembly or are integrally formed, to collimate corresponding light sources respectively.

[0049] In some embodiments, the lens units sequentially arranged in the horizontal direction are linked up to form an entire assembly or are integrally formed, and the light emergent surfaces of the lens units may be made integrally into free-form curved surfaces, so as to produce light incident surfaces of different lens units according to the focal length configuration, and the lens units are used for imaging for corresponding primary optical elements. Specifically, the light emergent surface of the low-beam lens unit 6 of the low-beam unit system, the light emergent surface of the high-beam lens unit 7 of the high-beam unit system and the light emergent surface of the high- and low-beam combined lens unit 1 of the high- and low-beam combined unit system may be made into free-form curved surfaces sequentially, so that the low-beam lens unit 6 of the low-beam unit system, the high-beam lens unit 7 of the high-beam unit system, and the high- and low-beam combined lens unit 1 of the high- and low-beam combined unit system are linked up into an entire assembly or are integrally formed; the integral lens formed in that way may be produced by internal injection molding.

[0050] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems. For example, as shown in Fig. 1, the thickness of the low-beam lens unit 6 located in the middle is smaller than the thicknesses of the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 located on two sides; alternatively, as shown in Fig. 9, the thickness of the low-beam lens unit 6 in the middle is smaller than the thickness of the low-beam lens unit 6 and the high- and low-beam combined lens unit 1 on the two sides. It can be understood that the sequential arrangement of the unit optical systems is not limited to specific arrangements in which a low-beam unit system is arranged in the middle. Therefore, in the case that a high-beam unit system or a high- and low-beam combined unit system is arranged in the middle, the thickness of the corresponding high-beam lens unit 7 or the thickness of the high- and low-beam combined lens unit 1 may be smaller than the thicknesses of the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 arranged on the two sides. Thus, such a lens thickness design can provide a more esthetic appearance on one hand, and is conductive to the production of the lenses by integral injection molding.

[0051] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction. For example, as shown in Figs. 17 to 20, when viewed from above, the light incident surface of the low-beam lens unit 6 located in the middle focuses the light only in the vertical direction, so that the low-beam cutoff line of the formed low-beam light pattern is clearer. Specifically, Fig. 21 is a top view of the low-beam lens unit 6 located in the middle, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is in an arc shape that is inwardly recessed in the horizontal direction; Fig. 22 is a sectional view of the low-beam lens unit 6 in Fig. 21 in the vertical direction, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is approximately linear in the vertical direction; Fig. 23 is a side view of the low-beam lens unit 6 located in the middle, Fig. 24 is a sectional view of the low-beam lens 6 in Fig. 23 in the horizontal direction, and it can be seen that the light incident surface of the low-beam lens unit 6 located in the middle is in an arc shape that is inwardly recessed in the horizontal direction, so that an effect that the light incident surface of the low-beam lens unit 6 located in the middle focuses the light only in the vertical direction can be achieved. Of course, the unit optical system corresponding to the lens unit in the middle is not limited to the above-mentioned low-beam unit system; alternatively, it may be the high-beam unit system or the high- and low-beam combined unit system.

[0052] In some embodiments, among the unit optical systems sequentially arranged in the horizontal direction, the outermost unit optical system has at least two primary optical elements. As shown in Fig. 1, the outermost unit optical systems are a high-beam unit system and a high- and low-beam combined unit system, respectively. The high-beam unit system has two high-beam primary optical elements 5, and the high- and low-beam combined unit system has one low-beam primary optical element 3 and one high-beam primary optical element 5. If the above-mentioned high-beam unit system or the high- and low-beam combined unit system is arranged in the middle, the spatial layout will be congested, since the high-beam unit system has two high-beam primary optical elements 5 or the near-beam combined unit system has one low-beam primary optical element 3 and one high-beam primary optical element 5; consequently, interference among the unit optical system in the arrangement may occur. However, by arranging the above-mentioned high-beam unit system or the near-beam combined unit system at the outermost position, the effective space of the system can be effectively increased, and the arrangement is more reasonable. Likewise, as shown in Fig. 16, the high- and low-beam combined unit system is arranged at the outermost position, thereby the effective space of the system can be effectively increased, and the arrangement is more reasonable.

[0053] In some embodiments, a baffle 8 is provided between every two adjacent unit optical systems, so as to separate the light sources and reflectors of different unit optical systems and prevent light channeling between the unit optical systems. For example, as shown in Fig. 1 or Fig. 9, a baffle 8 is provided between adjacent low-beam unit system, high-beam unit system and high- and low-beam combined unit system, so that the adjacent low-beam unit system, high-beam unit system and high- and low-beam combined unit system are separated from each other. The baffles 8 may be integrally formed with the reflectors, for example, a baffle 8 is integrally formed with the corresponding low-beam primary optical element 3, and a baffle 8 is integrally formed with the corresponding high-beam primary optical element 5. Alternatively, a heat dissipation structures, such as a heat radiator, may be provided, and each baffle 8 is integrally formed with a heat radiator.

[0054] In some embodiments, the light incident surface of the lens unit corresponding to each unit optical system is provided with a light diffusion structure 9. For example, as shown in Fig. 2, the light incident surface of the low-beam lens unit 6 corresponding to the low-beam unit system, the light incident surface of the high-beam lens unit 7 corresponding to the high-beam unit system, and the light incident surface of the high- and low-beam combined lens unit 1 corresponding to the high- and low-beam combined unit system are provided with a light diffusion structure 9 respectively, and the light diffusion structure 9 is used to diffuse the light. Specifically, the light diffusion structure 9 may be a pattern, which may be a structure suitable for light diffusion.

[0055] In some embodiments, both the low-beam light source 2 and the high-beam light source 4 are placed on the same circuit board.

[0056] To make the technical concept of the present disclosure understood better, the following description is provided in connection with comprehensive technical features.

[0057] As shown in Figs. 1 to 16, in a preferred embodiment of the present disclosure, a double-light module for realizing a low-beam function and a high-beam function is provided. The double-light module comprises a lens and a plurality of unit optical systems, wherein each of the unit optical systems comprises a primary optical element and a light source, and the unit optical systems are sequentially arranged in the horizontal direction; the lens has a plurality of lens units that are linked up sequentially, and each unit optical system is arranged corresponding to a lens unit respectively; the lens units may be classified into high- and low-beam combined lens units 1, low-beam lens units 6 and high-beam lens units 7 according to their functions; in the unit optical systems, some unit optical systems may be low-beam unit systems, some unit optical systems may be high-beam unit systems, and some unit optical systems may be high- and low-beam combined unit systems, as long as at least one of the unit optical systems is a high- and low-beam combined unit system. As shown in Fig. 1, among the unit optical systems that are arranged sequentially in the horizontal direction, three low-beam unit systems are arranged in the middle, three high-beam unit systems are arranged on the left side, and one high- and low-beam combined unit system is arranged on the right side. Alternatively, as shown in Fig. 14, among the unit optical systems that are arranged sequentially in the horizontal direction, two low-beam unit systems are arranged in the middle, and a high- and low-beam combined unit system is arranged on the left side and right side of the two low-beam unit systems. The low-beam unit system comprises at least one low-beam light source 2 and at least one low-beam primary optical element 3, and each low-beam primary optical element 3 is configured to collimate the light emitted by the corresponding low-beam light source 2 to the low-beam lens unit 6 and project the light through the low-beam lens unit 6 to form an image. The high-beam unit system comprises at least one high-beam light source 4 and at least one high-beam primary optical element 5, and each high-beam primary optical element 5 is configured to collimate the light emitted by the corresponding high-beam light source 4 to the high-beam lens unit 7 and project the light through the high-beam lens unit 7 to form an image. The high- and low-beam combined unit system comprises a low-beam light source 2, a low-beam primary optical element 3, a high-beam light source 4 and a high-beam primary optical element 5, wherein the low-beam primary optical element 3 is configured to collimate the light emitted by the low-beam light source 2 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image, and the high-beam primary optical element 5 is configured to collimate the light emitted by the high-beam light source 4 to the high- and low-beam combined lens unit 1 and project the light through the high- and low-beam combined lens unit 1 to form an image. Both the low-beam primary optical element 3 and the high-beam primary optical element 5 are reflectors. Specifically, the reflectors may be parabolic reflectors or ellipsoidal reflectors. The lens units corresponding to the unit optical systems are linked up to form an entire assembly or are integrally formed, and the light emergent surfaces of the lens units may be made integrally into free-form curved surfaces, so as to produce light incident surfaces of different lens units according to the focal length configuration, and the lens units are used for imaging for corresponding reflectors. Specifically, the light emergent surface of the low-beam lens unit 6 and the light emergent surface of the high- and low-beam combined lens unit 1 may be made into free-form curved surfaces in sequence, so that the low-beam lens unit 6, the high-beam lens unit 7 and the high- and low-beam combined lens unit 1 are sequentially linked up into an entire assembly or are integrally formed; the integral lens formed in that way may be produced by internal injection molding. Among the unit optical systems that are sequentially arranged, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems. Among the unit optical systems that are sequentially arranged, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction. A baffle 8 is provided between every two adjacent unit optical systems, so as to separate the light sources and reflectors of different unit optical systems and prevent light channeling between the unit optical systems. The light incident surface of the lens of each unit optical system is provided with a light diffusion structure 9. The light diffusion structure 9 may be a pattern, which may be a structure suitable for light diffusion.

[0058] In the low-beam mode and the high-beam mode, corresponding lens can be lit up. For the double-light module, in the low-beam mode, the lens unit corresponding to the high- and low-beam combined unit system can be lit up, and a good vehicle lamp lighting appearance can be obtained without additional cost and structure for an accompanying high-beam lighting effect in the low-beam mode. In the low-beam mode, only the low-beam light source 6 in the high- and low-beam combined unit system is lit up, and the low-beam light source 6 is more dispersed, thereby the thermal risk of the system can be reduced, and the optical efficiency of the low-beam can be improved. The dispersion angle of the low-beam is large enough, so that low-beam broadening can be effectively improved.

[0059] In an embodiment of the present disclosure, a vehicle lamp is further provided. The vehicle lamp is provided with the above-mentioned double-light module, which is to say, the vehicle lamp employs all technical schemes of the above embodiments of the double-light module. Hence, the vehicle lamp at least has all the beneficial effects achieved by the technical schemes of the above embodiments of the double-light module.

[0060] In an embodiment of the present disclosure, a vehicle is further provided. The vehicle is provided with the above-mentioned vehicle lamp, which is to say, the vehicle employs all technical schemes of the above embodiments of the vehicle lamp. Hence, the vehicle at least has all the beneficial effects achieved by the technical schemes of the above embodiments of the vehicle lamp.

[0061] While some preferred embodiments of the present disclosure are described above in detail with reference to the accompanying drawings, the present disclosure is not limited to those embodiments. Various simple variations may be made to the technical scheme of the present disclosure, including combinations of the specific technical features in any appropriate form, within the scope of the technical ideal of the present disclosure. To avoid unnecessary repetitions, various possible combinations are not described specifically in the present disclosure. However, such simple variations and combinations shall also be deemed as having been disclosed herein and falling in the scope of protection of the present disclosure.

Examples

Embodiment Construction

[0028]The embodiments of the present disclosure will be further described below in detail in examples with reference to the accompanying drawings. The following detailed description of the embodiments and drawings are used to illustrate the principle of the present disclosure, but are not intended to limit the scope of the present disclosure. The present disclosure can be implemented in many different forms, is not limited to the specific embodiments disclosed herein, but includes all technical schemes falling within the scope of the claims.

[0029]These embodiments are provided to make the present disclosure understood thoroughly and completely, and fully convey the scope of the present disclosure to those skilled in the art. It may be noted: unless otherwise specified, the relative arrangement of components and steps, the compositions of materials, numerical expressions and numerical values set forth in these examples may be interpreted as merely illustrative rather than limiting.

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Claims

1. A double-light module, comprising a lens and a plurality of unit optical systems, wherein the unit optical systems are transversely arranged in sequence, the unit optical systems each comprise primary optical elements and light sources, the lens comprises a plurality of lens units connected in sequence, and each unit optical system is respectively arranged corresponding to a lens unit; at least one of the unit optical systems is a high- and low-beam combined unit system, which comprises at least one low-beam light source (2), at least one low-beam primary optical element (3), at least one high-beam light source (4), and at least one high-beam primary optical element (5); the high- and low-beam combined unit system corresponds to a high- and low-beam combined lens unit (1), the low-beam primary optical element (3) is configured to collimate the light emitted by the low-beam light source (2) to the high- and low-beam combined lens unit (1) and project the light through the high- and low-beam combined lens unit (1) to form an image; and the high-beam primary optical element (5) is configured to collimate the light emitted by the high-beam light source (4) to the high- and low-beam combined lens unit (1) and project the light through the high- and low-beam combined lens unit (1) to form an image.

2. The double-light module of claim 1, wherein at least one of the unit optical systems is a low-beam unit system, which comprises at least one low-beam light source (2) and at least one low-beam primary optical element (3); the low-beam unit system corresponds to a low-beam lens unit (6), and the low-beam primary optical element (3) is configured to collimate the light emitted by the corresponding low-beam light source (2) to the low-beam lens unit (6) and project the light through the low-beam lens unit (6) to form an image.

3. The double-light module of claim 1 or 2, wherein at least one of the unit optical systems is a high-beam unit system, which comprises at least one high-beam light source (4) and at least one high-beam primary optical element (5); the high-beam unit system corresponds to a high-beam lens unit (7), and the high-beam primary optical element (5) is configured to collimate the light emitted by the corresponding high-beam light source (4) to the high-beam lens unit (7) and project the light through the high-beam lens unit (7) to form an image.

4. The double-light module of claim 3, wherein both the low-beam primary optical element (3) and the high-beam primary optical element (5) are reflectors.

5. The double-light module of claim 4, wherein the reflectors are parabolic reflectors or ellipsoidal reflectors.

6. The double-light module of claim 3, wherein a cutoff line forming structure (31) for forming a low-beam cutoff line is arranged on the periphery of the low-beam primary optical element (3).

7. The double-light module of claim 3, wherein among the unit optical systems sequentially arranged in the horizontal direction, the thickness of the lens unit corresponding to the unit optical system in the middle is smaller than the thicknesses of the lens units corresponding to the rest unit optical systems.

8. The double-light module of claim 3, wherein among the unit optical systems sequentially arranged in the horizontal direction, the lens unit corresponding to the unit optical system in the middle has a focal light incident surface in the vertical direction.

9. The double-light module of claim 3, wherein among the unit optical systems sequentially arranged in the horizontal direction, the outermost unit optical system has at least two primary optical elements.

10. The double-light module of claim 1, wherein in the high- and low-beam combined unit system, the distance between the low-beam light source (2) and an optical axis (11) of the high- and low-beam combined lens unit (1) is greater than the distance between the high-beam light source (4) and the optical axis (11) of the high- and low-beam combined lens unit (1).

11. The double-light module of claim 1, wherein in the high- and low-beam combined unit system, the distance between the low-beam light source (2) and the optical axis (11) of the high- and low-beam combined lens unit (1) is smaller than the distance between the high-beam light source (4) and the optical axis (11) of the high- and low-beam combined lens unit (1).

12. The double-light module of claim 1, wherein in the high- and low-beam combined unit system, the distance between the low-beam light source (2) and an optical axis (11) of the high- and low-beam combined lens unit (1) is equal to the distance between the high-beam light source (4) and the optical axis (11) of the high- and low-beam combined lens unit (1).

13. The double-light module of claim 3, wherein a baffle (8) is arranged between every two adjacent unit optical systems14. The double-light module of claim 3, wherein the light incident surface of at least one of the lens units is provided with a light diffusion structure (9).

15. The double-light module of claim 14, wherein the light diffusion structure (9) is a pattern arranged on the light incident surface of the lens unit.

16. A vehicle lamp provided with the dual-light module of any of claims 1 to 15.

17. A vehicle provided with the vehicle lamp of claim 16.

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