WO2023019640A1 - Adb远近光一体车灯照明模组及车灯 - Google Patents

Adb远近光一体车灯照明模组及车灯 Download PDF

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Publication number
WO2023019640A1
WO2023019640A1 PCT/CN2021/115676 CN2021115676W WO2023019640A1 WO 2023019640 A1 WO2023019640 A1 WO 2023019640A1 CN 2021115676 W CN2021115676 W CN 2021115676W WO 2023019640 A1 WO2023019640 A1 WO 2023019640A1
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Prior art keywords
light
low
adb
optical element
concentrating
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PCT/CN2021/115676
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English (en)
French (fr)
Inventor
张洁
陈佳缘
董世琨
祝贺
桑文慧
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华域视觉科技(上海)有限公司
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Priority to EP21953877.4A priority Critical patent/EP4365484A1/en
Publication of WO2023019640A1 publication Critical patent/WO2023019640A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the invention relates to a car lamp, in particular to an ADB far and near beam integrated car lamp lighting module.
  • the invention also relates to a vehicle lamp.
  • Car light lighting modules are divided into high beam lighting modules, low beam lighting modules and far and near beam integrated lighting modules according to their different uses.
  • the projected lighting module is generally composed of a light source, an ellipsoidal reflector, and a collimating lens.
  • a shading plate near the focus of the collimating lens to form a light-dark cut-off.
  • the dipped beam lighting shape of the line (the upper boundary of the lighting shape).
  • the ADB high beam module usually contains multiple high beam lighting sources and multiple ellipsoidal reflectors, or multiple high beam lighting sources and multiple incident light sources Condenser on the surface to form ADB high beam light distribution at the focus of the collimator lens.
  • the low beam module usually contains a low beam light source and a low beam primary optical element to form a low beam light at the focus of the collimator lens Distribution, the collimator lens projects the ADB high beam light distribution to form the ADB high beam light shape, and projects the low beam light distribution to form the low beam light shape.
  • the high-beam light source, quasi-ellipsoidal reflector or condenser, low-beam light source and low-beam primary optical elements need to be set on the optical axis of the collimator lens On or near the optical axis, this will lead to interference between the high-beam light source and the quasi-ellipsoidal reflector or condenser and the low-beam light source and the low-beam primary optical element.
  • the number of high-beam light sources and quasi-ellipsoidal reflectors or concentrators of ADB high-beam is large, and the volume is large, which increases the interference with the low-beam light source and low-beam primary optical components, resulting in high-beam light source And/or the low-beam light source deviates from the optical axis of the collimator lens, which affects the clarity of the ADB high-beam light shape and/or low-beam light shape.
  • a shading plate is set at the focal point of the lens, and the ADB high-beam light shape is blocked by the light-shielding plate to form a low-beam light shape with a light and dark cut-off line, and the position of the shading plate is switched to a place far from the focus of the collimating lens to form an ADB far Light and shape technical solutions.
  • the ADB high-beam type has a larger lighting range
  • the ADB lighting dark area formed includes the area above and below the low beam cut-off line at the same time, resulting in an excessively large area of the dark area, resulting in lack of illumination in the low beam lighting area, which affects the observation of the vehicle driver on the road surface The result is a potential safety hazard for vehicle driving.
  • the technical problem to be solved by the present invention is to provide an ADB far and near beam integrated vehicle lamp lighting module. clearer.
  • the further technical problem to be solved by the present invention is to provide a car lamp, which has no interference between optical elements and high light shape clarity.
  • the present invention provides an ADB far and near beam integrated vehicle lamp lighting module, which includes a low beam primary optical unit, a high beam primary optical unit, a light shield and a collimating optical element, and the low beam primary
  • the optical unit includes a low-beam light source and a low-beam condensing element, the low-beam condensing element is suitable for collecting the light emitted by the low-beam light source, and forms a low-beam light distribution in the focal area of the collimating optical element, so
  • the high-beam primary optical unit includes multiple high-beam light sources, a high-beam concentrating element and a bifocal optical element.
  • the first focal area of the bifocal optical element, the second focus of the bifocal optical element is set in the focal area of the collimating optical element, a cut-off line structure is provided on one side of the light shielding plate, and the cut-off line structure Set in the focal area of the collimating optical element.
  • the high-beam concentrating element is a parabolic reflector, there are multiple high-beam concentrating elements, and each of the high-beam light sources is respectively arranged in a focal area of a corresponding high-beam concentrating element,
  • the reflective surfaces of the plurality of high-beam concentrating elements are all arranged in the first focal area of the bifocal optical element.
  • the collimated light rays formed by the light rays emitted by multiple high-beam light sources after being reflected by their corresponding parabolic reflectors are combined to form the primary light distribution of the ADB light shape.
  • the reflective surfaces of multiple high-beam concentrating elements are all set in the first focal area of the bifocal optical element, so that the bifocal optical element can distribute the primary light of the ADB light shape formed by reflection of multiple high-beam concentrating elements It is converted to the second focus area to form the secondary light distribution of the ADB light shape, which is collimated by the collimating optical element and then projected onto the road surface to form a clear ADB lighting light shape.
  • each bifocal optical element there are multiple bifocal optical elements, and one or more high-beam concentrating elements are provided in the first focal area of each bifocal optical element.
  • the number of high-beam concentrating elements corresponding to each bifocal optical element is reduced, which can make the primary light formed by each high-beam concentrating element
  • the distribution is closer to the first focus area of the bifocal optical element, which improves the transformation effect of the bifocal optical element on the primary light distribution and the clarity of the finally formed ADB illumination light shape.
  • the high-beam concentrating element is a transparent light-guiding concentrating member
  • the transparent light-guiding concentrating member includes a plurality of light-incident surfaces, and each light-incident surface of the transparent light-guiding concentrating member is provided with one of the As for the high-beam light source, the light-emitting surface of the transparent light-guiding light-concentrating element is arranged in the first focus area of the bifocal optical element.
  • the transparent light guide light concentrating member can guide the light emitted by multiple high-beam light sources from multiple light incident surfaces, emit from the same light exit surface, and form a primary light distribution in the first focus area of the bifocal optical element .
  • the high-beam concentrating element is an ellipsoid reflector, there are multiple high-beam concentrating elements, and each of the high-beam light sources is arranged at one focal point of one of the high-beam concentrating elements.
  • the other focal points of each of the high-beam concentrating elements are all set in the first focal area of the bifocal optical element.
  • the ellipsoidal reflector has two focal points, and the ellipsoidal reflector can converge the light emitted from one focal point to the other focal point, and the ellipsoidal reflector has a better converging effect on the light, which helps It is used to improve the clarity of the illumination area formed by the light emitted by each high beam light source, and improve the resolution of the ADB high beam light shape.
  • the bifocal optical element is an ellipsoidal reflector.
  • the ellipsoidal reflector can reflect the incident light emitted from different directions to one focal point to another focal point, and the direction of the incident light is less restricted.
  • the ellipsoidal reflector and its first focal point Location settings are also more flexible.
  • the bifocal optical element is a convex lens or a lens group.
  • the convex lens or the lens group can converge the light emitted from one focal point to the other focal point, so that it can reflect the incident light emitted from different directions to one focal point in the focal point area of one side. to another focal point.
  • the convex lens or lens group is simple in structure, easy to process, and relatively low in cost.
  • the low-beam concentrating element is an ellipsoid reflector
  • the low-beam light source is set at one focus of the low-beam concentrating element
  • the other focus of the low-beam concentrating element is set at the The focal area of the collimating optic.
  • the ellipsoid reflector can reflect the incident light emitted from different directions to one focal point to another focal point, and can better collect the divergent light emitted by the high-beam light source, and can be used in collimating optics.
  • the first focus area of the element creates a sharper passing light distribution.
  • each of the low-beam light sources is arranged at the first focal point of one of the low-beam condensing elements, and a plurality of the low-beam
  • the second focal points of the light concentrating elements are all located in the focal area of the collimating optical element.
  • the low beam concentrating element is a transparent light guide light concentrating element, and the low beam light source is arranged at the light incident surface of the low beam concentrating element.
  • the light emitted by the low-beam light source can enter the transparent light-guiding concentrating part through the light-incident surface, and after refraction and reflection by the transparent light-guiding concentrating part, it is emitted from the light-emitting surface of the transparent light-guiding concentrating part.
  • the focus area of the straight optics forms the low beam light distribution.
  • the collimating optical element is a parabolic mirror or a convex lens.
  • either the parabolic reflector or the convex lens can project the light distribution at its focal point to form an illumination light shape.
  • the light incident direction and the projecting direction of the parabolic reflector can form a small included angle, while the projecting direction and the light projecting direction of the convex lens are basically the same.
  • the second aspect of the present invention provides a vehicle lamp, which uses the ADB far and low beam integrated vehicle lamp lighting module provided by the first aspect of the present invention.
  • the low beam concentrating element can converge the light emitted by the low beam light source to the focus area of the collimating optical element, and pass through the collimating optical
  • the elements are projected out to form a low-beam light shape with a cut-off line at the top.
  • the light emitted by each high-beam light source is collimated or converged by the high-beam concentrating element, and then irradiates the first focus area of the bifocal optical element to form a part of the ADB primary light distribution.
  • the light emitted by multiple high-beam light sources The first focus areas of the bifocal optics combine to form a complete ADB primary light distribution.
  • the bifocal optical element can convert the ADB primary light distribution in the first focal area to the second focal area, that is, the focal area of the collimating optical element, to form the ADB secondary light distribution.
  • the ADB high-beam lighting area with a cut-off line at the lower part is formed.
  • the ADB high beam lighting area is combined with the low beam light shape to form the ADB high beam light shape.
  • the second focal point of the bifocal optical element can be set at a quasi- The focal point of the collimating optical element, and the first focal point can be set outside the optical axis of the collimating optical element, so that the high beam primary optical unit can be set outside the optical axis of the collimating optical element, avoiding the high beam Mutual interference between the primary optics unit and the low-beam primary optics unit arranged near the optical axis of the collimating optics.
  • the ADB high beam light shape formed by the ADB far and low beam integrated vehicle lamp lighting module of the present invention is formed by combining the ADB high beam lighting area and the low beam light shape.
  • the formed The dark lighting area is only the area above the cut-off line of the low beam light shape, which does not affect the observation of the vehicle driver on the low beam lighting area, and improves the safety of vehicle driving.
  • the ADB far and near beam integrated car light lighting module of the present invention only needs to control the on and off of the high beam light source when switching the far and near beam light shapes, and does not need to move the shading plate, and the switching speed of the far and near beam light shapes is faster. Faster, far and low beam beams have higher stability and no switching noise.
  • the vehicle lamp of the present invention also has the above-mentioned advantages due to the use of the ADB far and near beam integrated vehicle lamp lighting module of the present invention.
  • Fig. 1 is an assembled perspective view of an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention
  • Fig. 2 is the front view of Fig. 1;
  • Fig. 3 is the schematic diagram of A-A orientation section in Fig. 2;
  • Figure 4 is an exploded view of the parts of Figure 1;
  • Fig. 5 is an embodiment of the ADB far and near beam integrated vehicle lamp lighting module and a schematic diagram of the high and low beam light path of the present invention
  • Fig. 6 is an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention and a schematic diagram of the low beam optical path;
  • Fig. 7 is the illuminance diagram of the low beam light shape screen formed by an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention.
  • Fig. 8 is a screen illuminance diagram of the ADB high beam lighting area formed by an embodiment of the ADB high and low beam integrated vehicle lamp lighting module of the present invention
  • Fig. 9 is an illuminance diagram of the ADB high beam light shape screen formed by an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention.
  • Fig. 10 is an illuminance diagram of an ADB high beam light shape screen with an illuminated dark area formed by an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention
  • Fig. 11 is a schematic diagram of the optical path of a dual-focus optical element in the ADB far and near beam integrated vehicle lamp lighting module of the present invention.
  • Fig. 12 is a schematic diagram of the optical path of another dual-focus optical element in the ADB far and near beam integrated vehicle lamp lighting module of the present invention.
  • Fig. 13 is an embodiment of the ADB far and near beam integrated vehicle lamp lighting module and a schematic diagram of the high and low beam light path of the present invention
  • Fig. 14 is another embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention and a schematic diagram of the high beam optical path;
  • Fig. 15 is another embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention and a schematic diagram of the high and low beam optical path;
  • Fig. 16 is another embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention and a schematic diagram of the high beam optical path;
  • Fig. 17 is another embodiment of the ADB far and near beam integrated vehicle lamp lighting module and a schematic diagram of the low beam light path of the present invention.
  • orientation or positional relationship indicated by the used orientation words such as "front, rear, up, down, left, right” is based on the ADB far and low beam integrated vehicle lamp of the present invention.
  • the direction indicated by the orientation word "front” is the direction when the vehicle is running normally.
  • the description of the orientation or positional relationship of the ADB far and near beam integrated vehicle lamp lighting module of the present invention, the vehicle lamp and its components is consistent with the installation orientation in actual use.
  • first and second are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, the terms “first”, “second” are limited to Two" features may explicitly or implicitly include one or more of said features.
  • connection can be a fixed connection, or It can be a detachable connection or an integrated connection; it can be a direct connection or an indirect connection through an intermediary; it can be the internal communication of two elements or the interaction relationship between two elements.
  • an embodiment of the ADB far and near beam integrated vehicle lamp lighting module of the present invention includes a low beam primary optical unit 1, a high beam primary optical unit 2, a shading plate 3 and a collimating optical element 4 .
  • the low beam primary optical unit 1 is used to emit low beam light and produce the low beam light distribution required by the low beam beam shape.
  • the low beam primary optical unit 1 includes a low beam light source 11 and a low beam concentrating element 12.
  • the light-gathering element is an optical element that can collect the light emitted by the light source and form a certain light distribution.
  • the light concentrating element can be a parabolic reflector with a parabolic reflective surface or a paraboloid-like reflective surface, can be an ellipsoidal reflector with an ellipsoid reflective surface or a quasi-ellipsoid reflective surface, or can be a transparent light guide concentrator,
  • the convex lens or lens group can also be a possible combination of the above optical elements.
  • Parabolic reflective surface is a reflective surface similar to parabolic reflective surface formed by adaptive adjustment on the basis of parabolic reflective surface. The adjustment of parabolic reflective surface can adjust the reflection direction of local reflective surface to adjust the reflective The light distribution formed by the light rays.
  • the ellipsoidal reflective surface refers to the adaptive adjustment on the basis of the ellipsoidal reflective surface to adjust the reflection direction of the local reflective surface and the light distribution formed, and the formed reflective surface has a similar function to the ellipsoidal reflective surface.
  • the transparent light guide light concentrator can be a traditional light concentrator structure formed by a transparent light guide, or any other structural form formed by a transparent light guide that can collect, conduct and output light.
  • the transparent light guide light concentrating part has a light incident surface and a light exit surface, and can guide the light emitted by the light source through the light entrance surface, and emit light from the light exit surface after being collimated by the transparent light guide.
  • the light incident surface may be a plane or a curved surface provided on the transparent light guide and light concentrating member, or may be a part of the light incident structure provided on the transparent light guide and light concentrating member.
  • the light source is set at different relative positions of the condensing element: when the condensing element is a parabolic reflector, the light source is set at the focus of the parabolic reflector; when the condensing element is an ellipsoidal reflector, a convex lens or the lens group, the light source is arranged at the focal point of the ellipsoidal reflector, convex lens or lens away from the collimating optical element 4; when the light-gathering element is selected from a transparent light-guiding light-gathering element, the light source is arranged at the light-incident surface of the transparent light-guide light-gathering element .
  • the low-beam concentrating element 12 is a concentrating element used in the low-beam primary optical unit 1 . After the light emitted by the low-beam light source 11 is converged or collimated by the low-beam concentrating element 12 , it forms a low-beam light distribution in the focal area of the collimating optical element 4 .
  • the shading plate 3 is horizontally arranged on the optical axis of the collimating optical element 4 , and the front end of the shading plate 3 is provided with a cut-off line structure 31 , and the cut-off line structure 31 is set in the focus area of the collimating optical element 4 .
  • the cut-off line structure 31 is arranged in the focal area of the collimating optical element 4, which can make the formed cut-off line clearer.
  • the collimating optical element 4 can be a parabolic mirror with a parabolic reflective surface or a parabolic-like reflective surface, or a convex lens or lens group. When the collimating optical element 3 is a convex lens or a lens group, the convex lens or lens group can be installed on the lens holder 5 .
  • the optical axis of the collimating optical element 4 refers to the symmetry axis of the collimating optical element 4.
  • the optical axis of the collimating optical element 4 is a straight line passing through the focal point F of the reflector and perpendicular to the tangent plane at the maximum curvature of the reflective surface of the parabolic reflector; such as the collimating optical element 4 is a convex lens or a lens group, and the optical axis of the collimating optical element 4 is usually a straight line passing through the two focal points of the convex lens or lens group.
  • the high-beam primary optical unit 2 is used to emit ADB high-beam light and generate the light distribution required by the ADB high-beam light shape.
  • the high-beam primary optical unit 2 includes multiple high-beam light sources 21 and one or more high-beam concentrating elements 22 and one or more bifocal optical elements 23 .
  • the high-beam concentrating element 22 is a concentrating element applied in the high-beam primary optical unit 2, and one or more high-beam concentrating elements 22 can collect light emitted by multiple high-beam light sources 21, and can control multiple high-beam
  • the divergent light emitted by the light source 21 is collimated or converged, and forms a plurality of light distributions with bright and dark boundaries on the left and right sides, and the multiple light distributions irradiate the first focal point F1 area of the bifocal optical element 23, and are combined together to form ADB primary light distribution.
  • the bifocal optical element 23 is an optical element with a first focal point F1 and a second focal point F2.
  • the bifocal optical element 23 can be an ellipsoidal reflective surface or a quasi-ellipsoidal reflective surface as shown in FIG. 11
  • the ellipsoid reflector may also be a convex lens or a lens group with two focal points as shown in FIG. 12 , or may be other possible optical elements or optical element groups with two focal points. According to the needs of position setting, any one of the two focal points of the bifocal optical element can be used as the first focal point F1, and the other focal point can be used as the second focal point F2.
  • the bifocal optical element 23 can convert the ADB primary light distribution in the area of the first focal point F1 to the area of the second focal point F2 to form the ADB secondary light distribution. After the shading plate 3 blocks the ADB secondary light distribution, it is projected through the collimating optical element 4 to form the ADB high beam lighting area with a cut-off line in the lower part as shown in FIG. 8 .
  • the second focal point F2 of the bifocal optical element 23 is set in the focal area of the collimating optical element 4, so that the ADB high beam illumination area is clearer.
  • the high beam light source 21 is turned off, and the light emitted by the low beam light source 11 forms a low beam light shape as shown in FIG. 7 .
  • the low-beam light source 11 and the high-beam light source 21 are turned on at the same time, and the light emitted by the low-beam light source 11 forms a low-beam light shape with a cut-off line in the upper part as shown in FIG. 7 .
  • the light emitted by the light source 21 forms the ADB high beam lighting area with cut-off line in the lower part as shown in Figure 8, and the ADB high beam lighting area is combined with the low beam lighting shape to form the ADB far light shape.
  • the cut-off line at the lower part of the ADB high-beam lighting area and the light-dark cut-off line at the upper part of the low-beam light shape are both formed by the cut-off line structure 31, the size and shape of the two are consistent, so that the ADB high-beam lighting area can be compared with the low-beam light shape.
  • the perfect fit in the area of the cut-off line ensures the uniformity of the combined ADB high beam shape. It can be seen that the ADB far and near beam integrated vehicle light lighting module of the present invention switches the far and near beam light shapes by controlling the high beam light source 21 on and off, without moving the light shield 3, and the far and near beam light shapes can be switched more quickly and easily. convenient.
  • a corresponding high-beam light source 21 is turned off, and a dark area of illumination is formed in the corresponding part of the ADB high-beam lighting area, forming an ADB high-beam light shape with a dark area of illumination as shown in FIG. 10 .
  • the ADB high-beam lighting area only includes the area above the cut-off line, the formed lighting dark area is only the part above the cut-off line, and the low-beam light shape part below the cut-off line remains illuminated, avoiding the formed
  • the dark area of lighting is too large, which affects the observation of the vehicle driver on the road surface and brings safety hazards.
  • the position of the low-beam lighting area below the light-dark cut-off line is relatively low, which will not cause glare to the traffic participants in front of the vehicle, and will not cause adverse effects on the ADB function.
  • the number of high-beam concentrating elements 22 is consistent with the number of high-beam light sources 21, and each high-beam light source 21 is respectively arranged at the focal point of a corresponding high-beam concentrating element 22,
  • the light emitted by each high-beam light source 21 is reflected by the corresponding parabolic reflector to form parallel collimated light rays to form respective light distributions.
  • the high-beam light source 21 preferably uses LED light-emitting chips or other surface light sources to facilitate the formation of boundaries of light distribution.
  • the high-beam light source 21 can be installed on the supporting radiator 6 to reduce the operating temperature of the high-beam light source 21 and improve the stability and service life of the high-beam light source 21.
  • the reflective surfaces of a plurality of high-beam concentrating elements 22 can be arranged in the first focal point F1 region of the bifocal optical element 23, or the high-beam concentrating element 22 can be set to collimate the light emitted by the high-beam light source 21 and irradiate the
  • the first focal point F1 area of the bifocal optical element 23 is used to form an ADB primary light distribution in the first focal point F1 area of the bifocal optical element 23 .
  • the ADB far and near beam integrated vehicle lamp lighting module of the present invention there are multiple bifocal optical elements 23 .
  • the number of bifocal optical elements 23 may be consistent with the number of high beam concentrating elements 22, so that each high beam concentrating element 22 can form an ADB primary at the first focal point F1 of the corresponding bifocal optical element 23.
  • multiple ADB primary light distributions are combined at the same second focal point F2 of the multiple bifocal optical elements 23 to form ADB secondary light distributions after being transformed by their corresponding bifocal optical elements 23 .
  • each ADB primary light distribution can be closer to the focus area of the bifocal optical element 23, and the formed illumination area is clearer.
  • the primary light distribution of each ADB can be individually adjusted through the bifocal optical element 23 to optimize the final ADB high beam shape.
  • the cost of processing and debugging is also increased.
  • the quantity of bifocal optical element 23 also can be less than the quantity of high-beam concentrating element 22, makes the light distribution that several high-beam concentrating elements 22 form can be in a corresponding bifocal optical element 23 Combined at the first focal point F1, an ADB primary light distribution is formed.
  • ADB primary light distributions are converted by their corresponding bifocal optical elements 23 , and combined at the same second focal point F2 of the several bifocal optical elements 23 to form an ADB secondary light distribution.
  • the number of bifocal optical elements 23 used is small, and the cost of processing and debugging is low.
  • the high beam light concentrating element 22 is a transparent light guide light concentrator with a plurality of input
  • a high-beam light source 21 is arranged at each light-incident surface, and the light emitted by the high-beam light source 21 can enter the transparent light-guiding light-gathering member through the respective light-incidence surfaces, and transmit through the transparent light-guide light-gathering piece, from The light is emitted from the light exit surface of the transparent light guide light concentrating member.
  • the light emitting surface of the high beam light concentrating element 22 is arranged on the first focal point F1 area of the bifocal optical element 23, so that the light emitted from the light emitting surface of the high beam light concentrating element 22 can be at the first focal point F1 of the bifocal optical element 23
  • the area forms the ADB primary light distribution.
  • Multiple high-beam condensing elements 22 can also be provided, and each high-beam condensing element 22 corresponds to one or more high-beam light sources 1 , so as to improve the resolution of the finally formed ADB high-beam lighting area.
  • the high and low beam light concentrating element 22 is an ellipsoid reflector.
  • the other focal points of multiple high-beam concentrating elements 22 are all set in the first focus F1 area of the bifocal optical element 23, and the light formed by each high-beam light source 21 is distributed in the first focus F1 area of the bifocal optical element 23 Combined to form the ADB primary light distribution.
  • the bifocal optical element 23 is an ellipsoid reflector.
  • the ellipsoidal reflective surface or quasi-ellipsoidal reflective surface of the ellipsoidal reflector has two focal points. A focus area, so that the light distribution of one focus area can be concentrated to another focus area to form a new light distribution after being reflected by the reflective surface.
  • one light concentrating element 22 or multiple light concentrating elements 22 may be provided in the first focus F1 area of each bifocal optical element 23 .
  • the ellipsoid reflector can converge the incident light irradiated from different directions to the first focal point F1 to the area of the second focal point F2, and has less restrictions on the angle between the outgoing light and the incident light.
  • the bifocal optical element 23 and its second The position setting of a focus F1 is also more flexible.
  • the bifocal optical element 23 is a convex lens or a lens group. There is a focal point on both sides of the convex lens or lens group, so that the convex lens or lens group has two focal points, and the light emitted from one focal point can be converged to the other focal area after being refracted by the convex lens or lens group. Therefore, the ADB primary light distribution formed by the light-condensing element 22 in the first focal point F1 area of the convex lens or lens group can be converted from the first focal point F1 area to the second focal point F2 area to form an ADB secondary light distribution.
  • the distance from the first focal point F1 of the bifocal optical element 23 deviating from the optical axis of the collimating optical element 4 is limited due to the overall propagation of light rays refracted by the convex lens along the optical axis direction of the convex lens. , affecting the flexibility of mod settings.
  • the low beam concentrating element 12 is an ellipsoid reflector.
  • the low-beam light source 11 is arranged at one focal point of the low-beam condensing element 12, and the light emitted by the low-beam light source 11 converges to the other focus of the low-beam condensing element 12 after being reflected by the low-beam condensing element 12, forming Low beam light distribution.
  • Another focal point of the low beam concentrating element 12 is set in the focal area of the collimating optical element 4 , so that the low beam light distribution is also formed in the focal area of the collimating optical element 4 . After the low beam light distribution is blocked by the light shielding plate 3, it is projected by the collimating optical element 4 to form a low beam light shape.
  • each low-beam concentrating element 12 corresponds to one low-beam light source 11, so that after the light emitted by each low-beam light source 11 can be collimated or converged, A light distribution is formed in the focal area of the collimating optical element 4 , and the light distribution formed by the light rays emitted by a plurality of low beam light sources 11 are combined in the focal area of the collimating optical element 4 to form a low beam light distribution.
  • the low beam concentrating element 12 is a transparent light guide and concentrating member.
  • the low-beam light source 11 is arranged at the light-incident surface of the low-beam concentrating element 12, and the light emitted by the low-beam light source 11 enters the transparent light-guide light-gathering member through the light-incidence surface, and after refraction and reflection by the transparent light-guide light-gatherer, forms a near-beam light source.
  • the straight light is emitted from the light exit surface, forming a low beam light distribution in the focus area of the collimating optical element 4 .
  • the collimating optical element 4 is a convex lens.
  • the convex lens can collimate the light distribution in the focal area on one side and project it to the other side of the convex lens to form an enlarged illumination light shape.
  • the collimating optical element 4 is a parabolic reflector. The parabolic reflector can collimate the light distribution in its focal area and reflect it to the same side of the reflective surface, and project it out to form an enlarged illumination light shape.
  • the vehicle lamp of the present invention uses the ADB far and low beam integrated vehicle lamp lighting module of any embodiment of the present invention, and also has the above-mentioned advantages.
  • references to the terms “one embodiment,” “some embodiments,” “a specific implementation” and the like means that a specific feature, structure, material, or characteristic described in connection with the embodiment or example includes In at least one embodiment or example of the invention.
  • the schematic representations of the above terms do not necessarily refer to the same embodiment or example.
  • the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Abstract

一种ADB远近光一体车灯照明模组，包括近光初级光学单元(1)、远光初级光学单元(2)、遮光板(3)和准直光学元件(4)，近光初级光学单元(1)包括近光光源(11)和用于准直或汇聚近光光源(11)发出的光线，在准直光学元件(4)焦点区域形成近光光分布的近光聚光元件(12)，远光初级光学单元(2)包括多个远光光源(21)、远光聚光元件(22)和双焦点光学元件(23)，远光聚光元件(22)适于收集多个远光光源(21)发出的光线，照射到双焦点光学元件(23)的第一焦点(F1)区域，双焦点光学元件(23)的第二焦点(F2)位于准直光学元件(4)的焦点区域，遮光板(3)设置在准直光学元件(4)的焦点区域，能够形成近光光形及由近光光形和带有截止线的ADB照明区域组成的ADB光形，ADB光形所形成的照明暗区更小。

Description

ADB远近光一体车灯照明模组及车灯
相关申请的交叉引用
本申请要求2021年08月20日提交的中国专利申请202110963004.X的权益，该申请的内容通过引用被合并于本申请。
技术领域
本发明涉及车灯，具体地，涉及一种ADB远近光一体车灯照明模组。本发明还涉及一种车灯。
背景技术
车灯照明模组按照其用途的不同分为远光照明模组、近光照明模组和远近光一体照明模组，按照其照明光形形成的原理又可以分为反射式照明模组和投射式照明模组。投射式照明模组一般由光源、类椭球面反射镜及准直透镜组成，在具有近光照明功能的照明模组中，还需要在准直透镜的焦点附近设置遮光板，以形成具有明暗截止线(照明光形上边界)的近光照明光形。在远近光一体投射式照明模组中，通常需要设置执行机构来驱动遮光板进行位置切换，以分别形成远、近光照明光形。
在ADB远近光一体车灯照明模组中，由于ADB远光模组中通常含有多个远光照明光源和多个类椭球面反射镜，或者多个远光照明光源和带有多个入光面的聚光器，以在准直透镜的焦点处形成ADB远光光分布，近光模组中通常含有近光光源和近光初级光学元件，以在准直透镜的焦点处形成近光光分布，准直透镜将ADB远光光分布投射出去形成ADB远光光形，将近光光分布投射出去形成近光光形。为了形成清晰的ADB远光光形和清晰的近光光形，远光光源、类椭球面反射镜或聚光器、近光光源和近光初级光学元件均 需要设置在准直透镜的光轴上或者光轴附近，这就会导致远光光源及类椭球面反射镜或聚光器与近光光源及近光初级光学元件之间的干扰。特别是，ADB远光的远光光源和类椭球面反射镜或聚光器的数量较多，体积较大，增加了与近光光源和近光初级光学元件之间的干扰，导致远光光源和/或近光光源偏离准直透镜的光轴，影响了ADB远光光形和/或近光光形的清晰度。
为了减小ADB远近光一体车灯照明模组中ADB远光模块与近光模块之间的干扰，也有在ADB远近光一体车灯照明模组中不设置单独的近光模块，而在准直透镜的焦点处设置遮光板，通过遮光板对ADB远光光形进行遮挡，形成带有明暗截止线的近光光形，将遮光板的位置切换至远离准直透镜的焦点处，形成ADB远光光形的技术方案。但在该技术方案中，不仅需要设置执行机构来驱动遮光板进行位置切换，产生切换速度慢、切换噪音大的缺点，而且，为了覆盖近光照明区域，ADB远光形的照明范围较大，在执行ADB的过程中，所形成的ADB照明暗区同时包括近光截止线上方及下方的区域，造成暗区面积过大，造成近光照明区域的照明缺失，影响车辆驾驶人对路面的观察效果，形成车辆驾驶的安全隐患。
发明内容
本发明所要解决的技术问题是提供一种ADB远近光一体车灯照明模组，该ADB远近光一体车灯照明模组能够避免远、近光光学元件之间的干扰，远、近光光形更清晰。
本发明进一步所要解决的技术问题是提供一种车灯，该车灯的光学元件之间无干扰，光形清晰度高。
为了解决上述技术问题，本发明一方面提供了一种ADB远近光一体车灯照明模组，包括近光初级光学单元、远光初级光学单元、遮光板和准直光学元件，所述近光初级光学单元包括近光光源和近光聚光元件，所述近光聚光元件适于收集所述近光光源发出的光线，而在所述准直光学元件的焦点区域 形成近光光分布，所述远光初级光学单元包括多个远光光源、远光聚光元件和双焦点光学元件，所述远光聚光元件适于收集多个所述远光光源发出的光线，而照射到所述双焦点光学元件的第一焦点区域，所述双焦点光学元件的第二焦点设置在所述准直光学元件的焦点区域，所述遮光板的一侧设置有截止线结构，所述截止线结构设置在所述准直光学元件的焦点区域。
优选地，所述远光聚光元件为抛物面反射镜，所述远光聚光元件有多个，每个所述远光光源分别设置在一个对应的所述远光聚光元件的焦点区域，多个所述远光聚光元件的反射面均设置在所述双焦点光学元件的第一焦点区域。通过该优选技术方案，每个远光光源发出的光线能够经过对应的抛物面反射镜的反射后，形成平行的准直光线。多个远光光源发出的光线经过各自对应的抛物面反射镜反射后所形成的准直光线相组合，形成ADB光形的初级光分布。多个远光聚光元件的反射面均设置在双焦点光学元件的第一焦点区域的设置，使得双焦点光学元件能够将经过多个远光聚光元件反射形成的ADB光形的初级光分布转换至第二焦点区域，形成ADB光形的次级光分布，并经过准直光学元件准直后投射到路面，形成清晰的ADB照明光形。
进一步优选地，所述双焦点光学元件有多个，每个所述双焦点光学元件的第一焦点区域设置有一个或者多个所述远光聚光元件。在该优选技术方案中，由于采用了多个双焦点光学元件，减少了每个双焦点光学元件所对应的远光聚光元件的数量，能够使得每个远光聚光元件所形成的初级光分布更加接近双焦点光学元件的第一焦点区域，提高了双焦点光学元件对初级光分布的转换效果和最终形成的ADB照明光形的清晰度。
优选地，所述远光聚光元件为透明光导聚光件，所述透明光导聚光件包括多个入光面，所述透明光导聚光件的每个入光面处设置有一个所述远光光源，所述透明光导聚光件的出光面设置在所述双焦点光学元件的第一焦点区域。通过该优选技术方案，透明光导聚光件能够从多个入光面处导入多个远光光源发出的光线，从同一个出光面射出，在双焦点光学元件的第一焦点区 域形成初级光分布。
优选地，所述远光聚光元件为椭球面反射镜，所述远光聚光元件有多个，每个所述远光光源设置在一个所述远光聚光元件的一个焦点处，多个所述远光聚光元件的另一个焦点均设置在所述双焦点光学元件的第一焦点区域。在该优选技术方案中，椭球面反射镜具有两个焦点，椭球面反射镜能够将从一个焦点处发出的光线汇聚到另一个焦点处，椭球面反射镜对光线的汇聚效果更好，有助于提高每个远光光源发出的光线形成的照明区域的清晰度，提高ADB远光光形的分辨率。
作为优选方案，所述双焦点光学元件为椭球面反射镜。在该优选技术方案中，椭球面反射镜能够将从不同方向发射至一个焦点处的入射光线反射到另一个焦点处，对入射光线的方向限制较小，椭球面反射镜及其第一焦点的位置设置也更加灵活。
优选地，所述双焦点光学元件为凸透镜或者透镜组。在该优选技术方案中，凸透镜或者透镜组能够将从一侧焦点处发出的光线汇聚到另一侧的焦点处，因而能够将一侧焦点区域的从不同方向发射至一个焦点处的入射光线反射到另一个焦点处。凸透镜或者透镜组结构简单，加工方便，使用的成本也比较低。
优选地，所述近光聚光元件为椭球面反射镜，所述近光光源设置在所述近光聚光元件的一个焦点处，所述近光聚光元件的另一个焦点设置在所述准直光学元件的焦点区域。在该优选技术方案中，椭球面反射镜能够将从不同方向发射至一个焦点处的入射光线反射到另一个焦点处，对远光光源发出的发散光线的收集能够更好，能够在准直光学元件的第一焦点区域形成更加清晰的近光光分布。
进一步优选地，所述近光光源和近光聚光元件均有多个，每个所述近光光源均设置在一个所述近光聚光元件的第一焦点处，多个所述近光聚光元件的第二焦点均位于所述准直光学元件的焦点区域。通过该优选技术方案，多 个近光聚光元件能够将设置在各自第一焦点处的近光光源发出的光线汇聚到准直光学元件的焦点区域，不同近光光源发出的光线在准直光学元件焦点区域相互组合和叠加，形成近光光分布。
优选地，所述近光聚光元件为透明光导聚光件，所述近光光源设置在所述近光聚光元件的入光面处。在该优选技术方案中，近光光源发出的光线能够通过入光面进入透明光导聚光件，经过透明光导聚光件的折射和反射后，由透明光导聚光件的出光面射出，在准直光学元件的焦点区域形成近光光分布。
优选地，所述准直光学元件为抛物面反射镜或者凸透镜。在该优选技术方案中，抛物面反射镜或者凸透镜均能够将其焦点处的光分布投射出去，形成照明光形。其中，抛物面反射镜的入光方向与投射方向能够形成一个较小的夹角，而凸透镜的投射方向与入光方向基本相同。
本发明第二方面提供了一种车灯，该车灯使用了本发明第一方面所提供的ADB远近光一体车灯照明模组。
通过上述技术方案，本发明的ADB远近光一体车灯照明模组，近光聚光元件能够将近光光源发出的光线汇聚到准直光学元件的焦点区域，经过遮光板的遮挡后通过准直光学元件投射出去，形成上部具有明暗截止线的近光光形。每个远光光源发出的光线经远光聚光元件的准直或者汇聚后，照射到双焦点光学元件的第一焦点区域，形成为ADB初级光分布的一部分，多个远光光源发出的光线在双焦点光学元件第一焦点区域相组合，形成一个完整的ADB初级光分布。双焦点光学元件能够将第一焦点区域的ADB初级光分布转换到第二焦点区域，也就是准直光学元件的焦点区域，形成ADB次级光分布，ADB次级光分布经过遮光板的遮挡后通过准直光学元件投射出去，形成下部具有明暗截止线的ADB远光照明区域。ADB远光照明区域与近光光形相组合，形成ADB远光光形。在本发明的ADB远近光一体车灯照明模组中，由于双焦点光学元件能够将第一焦点区域的光分布转换到第二焦点区域，因 而可以将双焦点光学元件的第二焦点设置在准直光学元件的焦点处，而将第一焦点则可以设置在准直光学元件的光轴之外，使得远光初级光学单元均可以设置在准直光学元件的光轴之外，避免了远光初级光学单元与设置在准直光学元件光轴附近的近光初级光学单元之间的相互干扰。本发明的ADB远近光一体车灯照明模组所形成的ADB远光光形由ADB远光照明区域与近光光形相组合而成，在执行ADB功能熄灭某个远光光源时，所形成的照明暗区仅为近光光形明暗截止线上部的区域，不影响车辆驾驶人对近光照明区域的观察，提高了车辆驾驶的安全性。本发明的ADB远近光一体车灯照明模组在进行远、近光光形切换时，仅需要控制远光光源的亮灭，而不需要移动遮光板，远、近光光形的切换速度更快，远、近光光形的稳定性更高，并且不产生切换噪声。本发明的车灯由于使用了本发明的ADB远近光一体车灯照明模组，也具有上述优点。
有关本发明的其它技术特征和技术效果，将在下文的具体实施方式中进一步说明。
附图说明
图1是本发明的ADB远近光一体车灯照明模组一个实施例装配后的总成立体图；
图2是图1的正视图；
图3是图2中A-A方位剖面示意图；
图4是图1的零件爆炸图；
图5是本发明的ADB远近光一体车灯照明模组一个实施例及远光光路示意图；
图6是本发明的ADB远近光一体车灯照明模组一个实施例及近光光路示意图；
图7是本发明的ADB远近光一体车灯照明模组一个实施例形成的近光光 形屏幕照度图；
图8是本发明的ADB远近光一体车灯照明模组一个实施例形成的ADB远光照明区域屏幕照度图；
图9是本发明的ADB远近光一体车灯照明模组一个实施例形成的ADB远光光形屏幕照度图；
图10是本发明的ADB远近光一体车灯照明模组一个实施例形成的带有照明暗区的ADB远光光形屏幕照度图；
图11是本发明的ADB远近光一体车灯照明模组中一种双焦点光学元件光路原理图；
图12是本发明的ADB远近光一体车灯照明模组中另一种双焦点光学元件光路原理图；
图13是本发明的ADB远近光一体车灯照明模组一个实施例及远光光路示意图；
图14是本发明的ADB远近光一体车灯照明模组另一个实施例及远光光路示意图；
图15是本发明的ADB远近光一体车灯照明模组另一个实施例及远光光路示意图；
图16是本发明的ADB远近光一体车灯照明模组又一个实施例及远光光路示意图；
图17是本发明的ADB远近光一体车灯照明模组再一个实施例及近光光路示意图。
附图标记说明
1        近光初级光学单元       11       近光光源
12       近光聚光元件           2        远光初级光学单元
21       远光光源               22       远光聚光元件
23       双焦点光学元件         3        遮光板
31       截止线结构             4        准直光学元件
5        透镜支架               6        散热器
具体实施方式
在本发明中，在未作相反说明的情况下，使用的方位词如“前、后、上、下、左、右”所指示的方位或位置关系是基于本发明的ADB远近光一体车灯照明模组正常安装在车辆上后的方位或位置关系。其中，方位词“前”所指示的方向为车辆正常行驶时的方向。对本发明的ADB远近光一体车灯照明模组、车灯及其零部件的方位或位置关系的描述与其实际使用中的安装方位一致。
术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性或隐含指明所指示的技术特征的数量，因此，限定有“第一”、“第二”的特征可以明示或隐含地包括一个或更多个所述特征。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置”或“连接”应做广义理解，例如，术语“连接”可以是固定连接，也可以是可拆卸连接，或者是一体连接；可以是直接连接，也可以是通过中间媒介间接连接，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面结合附图对本发明的具体实施方式进行详细说明，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，本发明的保护范围并不局限于下述的具体实施方式。
如图1至图17所示，本发明的ADB远近光一体车灯照明模组的一个实施例，包括近光初级光学单元1、远光初级光学单元2、遮光板3和准直光学元件4。近光初级光学单元1用于发出近光光线并产生近光光形所要求的近光 光分布，近光初级光学单元1包括近光光源11和近光聚光元件12。聚光元件是一种能够收集光源发出的光线，并形成一定的光分布的光学元件。具体地，聚光元件可以是具有抛物面反射面或者类抛物面反射面的抛物面反射镜，可以是具有椭球面反射面或者类椭球面反射面的椭球面反射镜，也可以是透明光导聚光件、凸透镜或透镜组，还可以是上述几种光学元件的可能的组合。类抛物面反射面是在抛物面反射面的基础上进行适应性调整所形成的与抛物面反射面功能类似的反射面，对抛物面反射面进行的调整能够调整局部反射面的反射方向，以调整反射后的光线所形成的光分布。类椭球面反射面是指在椭球面反射面的基础上进行适应性调整，以调整其局部反射面的反射方向和所形成的光分布，所形成的与椭球面反射面功能类似的反射面。透明光导聚光件可以是由透明光导体形成的传统聚光器结构，也可以是由透明光导体形成的其他任何可以收集、传导和输出光线的结构形式。透明光导聚光件带有入光面和出光面，并能够通过入光面导入光源发出的光线，经过透明光导体准直后，从出光面处射出。入光面可以是设置在透明光导聚光件上的一个平面或者曲面，也可以是设置在透明光导聚光件上的入光结构中的一部分。根据聚光元件种类的不同，光源设置在聚光元件的不同相对位置：当聚光元件选用抛物面反射镜时，光源设置在抛物面反射镜的焦点处；当聚光元件选用椭球面反射镜、凸透镜或透镜组时，光源设置在椭球面反射镜、凸透镜或透镜远离准直光学元件4的焦点处；当聚光元件选用透明光导聚光件，光源设置在透明光导聚光件的入光面处。近光聚光元件12是使用在近光初级光学单元1中的聚光元件。近光光源11发出的光线经过近光聚光元件12的汇聚或者准直后，在准直光学元件4的焦点区域形成近光光分布。遮光板3水平设置在准直光学元件4的光轴上，遮光板3前端设置有截止线结构31，截止线结构31设置在准直光学元件4的焦点区域。遮光板3对近光光分布进行遮挡后，通过准直光学元件4投射出去，形成如图7所示的上部带有明暗截止线的近光光形。截止线结构31设置在准直光学元件4的焦点区域，能够使得 所形成的明暗截止线更加清晰。准直光学元件4可以选用带有抛物面反射面或者类抛物面反射面的抛物面反射镜，也可以选用凸透镜或透镜组。在准直光学元件3选用凸透镜或者透镜组时，凸透镜或者透镜组可以安装在透镜支架5上。准直光学元件4的光轴是指准直光学元件4的对称轴，光线沿准直光学元件4的光轴射向准直光学元件4时，经过准直光学元件4的透射或者反射后，光线仍在原有的直线上传播。如准直光学元件4为抛物面反射镜，准直光学元件4的光轴是一条通过反射镜的焦点F，并垂直于抛物面反射镜的反射面曲率最大处切平面的直线；如准直光学元件4为凸透镜或透镜组，准直光学元件4的光轴通常是一条通过凸透镜或者透镜组两个焦点的直线。远光初级光学单元2用于发出ADB远光光线并产生ADB远光光形所要求的光分布，远光初级光学单元2包括多个远光光源21、一个或多个远光聚光元件22以及一个或多个双焦点光学元件23。远光聚光元件22是应用在远光初级光学单元2中的聚光元件，一个或多个远光聚光元件22能够收集多个远光光源21发出的光线，并可以对多个远光光源21发出的发散光线进行准直或汇聚，并且形成多个左右两侧具有明暗边界的光分布，多个光分布照射到双焦点光学元件23的第一焦点F1区域，相互组合在一起，形成ADB初级光分布。双焦点光学元件23是一种具有第一焦点F1和第二焦点F2的光学元件，具体地，双焦点光学元件23可以是如图11所示的具有椭球形反射面或者类椭球面反射面的椭球面反射镜，也可以是如图12所示的凸透镜或者具有两个焦点的透镜组，也可以是其他可能的具有两个焦点的光学元件或者光学元件组。根据位置设置需要，可以将双焦点光学元件两个焦点中的任一个焦点作为第一焦点F1，另一个焦点作为第二焦点F2。双焦点光学元件23能够将第一焦点F1区域的ADB初级光分布转换到第二焦点F2区域，形成ADB次级光分布。遮光板3对ADB次级光分布进行遮挡后，通过准直光学元件4投射出去，形成如图8所示的下部带有明暗截止线的ADB远光照明区域。双焦点光学元件23的第二焦点F2设置在准直光学元件4的焦点区域，使得ADB远光照明 区域更加清晰。需要进行近光照明时，关闭远光光源21，由近光光源11发出的光线形成了如图7所示的近光光形。需要进行远光照明时，同时打开近光光源11和远光光源21，由近光光源11发出的光线形成了如图7所示的上部带有明暗截止线的近光光形，由远光光源21发出的光线形成了如图8所示的下部带有明暗截止线的ADB远光照明区域，ADB远光照明区域与近光光形照明光形相组合，形成如图9所示的ADB远光光形。由于ADB远光照明区域下部的明暗截止线和近光光形上部的明暗截止线均由截止线结构31遮挡形成，两者的大小、形状一致，使得ADB远光照明区域能够与近光光形在明暗截止线区域完美配合，保证了组合后的ADB远光光形的均匀性。可见，本发明的ADB远近光一体车灯照明模组通过控制远光光源21的亮灭进行远、近光光形的切换，无需移动遮光板3，远、近光光形的切换更加快速、方便。需要执行ADB功能时，熄灭一个对应的远光光源21，在ADB远光照明区域的对应部位形成照明暗区，形成如图10所示的带有照明暗区的ADB远光光形。由于ADB远光照明区域仅包括明暗截止线上方的区域，所形成的照明暗区仅为明暗截止线上方的部分，明暗截止线下方的近光光形部分依然保持照明状态，避免了所形成的照明暗区过大，影响车辆驾驶人对路面的观察，带来安全隐患。而明暗截止线下方的近光照明区域位置较低，不会造成车辆前方的交通参与者眩目，也就不会对ADB功能造成不良影响。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图1至图6、图13、图14、图16和图17所示，远光聚光元件22选用抛物面反射镜。远光聚光元件22设置有多个，远光聚光元件22的数量与远光光源21的数量一致，每个远光光源21分别设置在一个对应的远光聚光元件22的焦点处，每个远光光源21发出的光线经过对应的抛物面反射镜的反射后，形成平行的准直光线射出，形成各自的光分布。远光光源21优选使用LED发光芯片或者其它面光源，以有利于形成光分布的边界。远光光源21可以安装在配套设置散热器6上，以降低远光光源21的工作温度，提高远光光源21的稳定性 和使用寿命。多个远光聚光元件22的反射面可以设置在双焦点光学元件23的第一焦点F1区域，或者将远光聚光元件22设置为能够将远光光源21发出的光线准直后照射到双焦点光学元件23的第一焦点F1区域，以能够在双焦点光学元件23的第一焦点F1区域形成ADB初级光分布。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图1至图6、图14、图16和图17所示，双焦点光学元件23有多个。双焦点光学元件23的数量可以与远光聚光元件22的数量一致，以使得每个远光聚光元件22能够形成在一个位于对应的双焦点光学元件23的第一焦点F1处的ADB初级光分布，多个ADB初级光分布经过各自对应的双焦点光学元件23转换后，在多个双焦点光学元件23相同的第二焦点F2处组合形成ADB次级光分布。这样每个ADB初级光分布均能够更接近双焦点光学元件23的焦点区域，形成的照明区域更加清晰。同时，还可以通过双焦点光学元件23对每个ADB初级光分布进行单独的调整，优化最终形成的ADB远光光形。但由于双焦点光学元件23的数量较多，也增加了加工和调试的成本。如图14所示，双焦点光学元件23的数量也可以少于远光聚光元件22的数量，使得数个远光聚光元件22形成的光分布能够在一个对应的双焦点光学元件23的第一焦点F1处组合形成一个ADB初级光分布。数个ADB初级光分布经过各自对应的双焦点光学元件23转换后，在数个双焦点光学元件23相同的第二焦点F2处组合形成ADB次级光分布。这样，所使用的双焦点光学元件23的数量较少，加工和调试成本较低。
作为本发明的ADB远近光一体车灯照明模组的一种具体实施方式，如图15所示，远光聚光元件22选用透明光导聚光件，该透明光导聚光件带有多个入光面，每个入光面处设置有一个远光光源21，远光光源21发出的光线能够通过各自对应的入光面进入透明光导聚光件中，经过透明光导聚光件的传输，从透明光导聚光件的出光面处射出。远光聚光元件22的出光面设置在双焦点光学元件23的第一焦点F1区域，使得由远光聚光元件22的出光面处射出的 光线能够在双焦点光学元件23的第一焦点F1区域形成ADB初级光分布。远光聚光元件22还可以设置多个，每个远光聚光元件22均对应一个或多个远光光源1，以能够提高最终形成的ADB远光照明区域的分辨率。
作为本发明的ADB远近光一体车灯照明模组的一种具体实施方式，远光聚光元件22为椭球面反射镜。远光聚光元件22设置有多个，每个远光光源21设置在一个远光聚光元件22的一个焦点处，每个远光聚光元件22能够将一个远光光源21发出的光线反射后汇聚到该远光聚光元件22的另一个焦点处，形成一个光分布。多个远光聚光元件22的另一个焦点均设置在双焦点光学元件23的第一焦点F1区域，每个远光光源21所形成的光分布在双焦点光学元件23的第一焦点F1区域相组合，形成ADB初级光分布。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图1至图6、图16和图17所示，双焦点光学元件23为椭球面反射镜。椭球面反射镜的椭球面形反射面或类椭球面形反射面具有两个焦点，从一个焦点处发出的光线经过椭球面形反射面或类椭球面形反射面反射后，均能够汇聚到另一个焦点区域，因而可以将一个焦点区域的光分布经过反射面的反射后，汇聚到另一个焦点区域形成新的光分布。根据设计的需要，每个双焦点光学元件23的第一焦点F1区域可以设置一个聚光元件22，也可以设置多个聚光元件22。椭球面反射镜能够将从不同方向照射向第一焦点F1处的入射光线汇聚到第二焦点F2区域，对出射光线与入射光线之间的夹角限制较小，双焦点光学元件23及其第一焦点F1的位置设置也更加灵活。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图13至图15所示，双焦点光学元件23选用凸透镜或者透镜组。在凸透镜或者透镜组的两侧均具有一个焦点，使得凸透镜或者透镜组均具有两个焦点，从一个焦点处发出的光线经过凸透镜或者透镜组的折射后，均能够汇聚到另一个焦点区域。因而可以将聚光元件22在凸透镜或者透镜组第一焦点F1区域形成的ADB初级光分布从第一焦点F1区域转换至第二焦点F2区域，形成ADB 次级光分布。但在使用单个凸透镜作为双焦点光学元件23时，由于经过凸透镜折射的光线总体沿凸透镜的光轴方向传播，限制了双焦点光学元件23的第一焦点F1偏离准直光学元件4光轴的距离，影响了模组设置的灵活性。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图1至图6和图13至图16所示，近光聚光元件12为椭球面反射镜。近光光源11设置在近光聚光元件12的一个焦点处，近光光源11发出的光线经过近光聚光元件12的反射后，汇聚到近光聚光元件12的另一个焦点处，形成近光光分布。近光聚光元件12的另一个焦点设置在准直光学元件4的焦点区域，这样，近光光分布也就形成在准直光学元件4的焦点区域。近光光分布经过遮光板3的遮挡后，由准直光学元件4投射出去，形成近光光形。
作为本发明的ADB远近光一体车灯照明模组的一种具体实施方式，如图1至图6和图13至图17所示，近光光源11和近光聚光元件12均设置有多个。近光光源11和近光聚光元件12的数量相同，每个近光聚光元件12均与一个近光光源11相对应，以能够将各个近光光源11发出的光线准直或者汇聚后，在准直光学元件4的焦点区域形成一个光分布，多个近光光源11发出的光线形成的光分布在准直光学元件4的焦点区域相组合，形成近光光分布。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图17所示，近光聚光元件12为透明光导聚光件。近光光源11设置在近光聚光元件12的入光面处，近光光源11发出的光线经过入光面进入透明光导聚光件，经过透明光导聚光件的折射和反射后，形成准直光线由出光面射出，在准直光学元件4的焦点区域形成近光光分布。
在本发明的ADB远近光一体车灯照明模组的一些实施例中，如图1至图6和图11至图15所示，准直光学元件4为凸透镜。凸透镜能够将其一侧焦点区域的光分布进行准直后投射到凸透镜的另一侧，形成放大的照明光形。在本发明的ADB远近光一体车灯照明模组的另一些实施例中，如图16和图17所示，准直光学元件4为抛物面反射镜。抛物面反射镜能够将其焦点区域的 光分布进行准直后反射到反射面的同一侧，投射出去形成放大的照明光形。
本发明的车灯，使用了本发明任一实施例的ADB远近光一体车灯照明模组，也具有上述优点。
在本发明的描述中，参考术语“一个实施例”、“一些实施例”、“一种具体实施方式”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本发明中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于此。在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本发明所公开的内容，均属于本发明的保护范围。

Claims (12)

  1. 一种ADB远近光一体车灯照明模组，其特征在于，包括近光初级光学单元(1)、远光初级光学单元(2)、遮光板(3)和准直光学元件(4)，所述近光初级光学单元(1)包括近光光源(11)和近光聚光元件(12)，所述近光聚光元件(12)适于收集所述近光光源(11)发出的光线，而在所述准直光学元件(4)的焦点区域形成近光光分布，所述远光初级光学单元(2)包括多个远光光源(21)、远光聚光元件(22)和双焦点光学元件(23)，所述远光聚光元件(22)适于收集多个所述远光光源(21)发出的光线，而照射到所述双焦点光学元件(23)的第一焦点区域，所述双焦点光学元件(23)的第二焦点设置在所述准直光学元件(4)的焦点区域，所述遮光板(3)的一侧设置有截止线结构(31)，所述截止线结构(31)设置在所述准直光学元件(4)的焦点区域。
  2. 根据权利要求1所述的ADB远近光一体车灯照明模组，其特征在于，所述远光聚光元件(22)为抛物面反射镜，所述远光聚光元件(22)有多个，每个所述远光光源(21)分别设置在一个对应的所述远光聚光元件(22)的焦点区域，多个所述远光聚光元件(22)的反射面均设置在所述双焦点光学元件(23)的第一焦点区域。
  3. 根据权利要求2所述的ADB远近光一体车灯照明模组，其特征在于，所述双焦点光学元件(23)有多个，每个所述双焦点光学元件(23)的第一焦点区域设置有一个或者多个所述远光聚光元件(22)。
  4. 根据权利要求1所述的ADB远近光一体车灯照明模组，其特征在于，所述远光聚光元件(22)为透明光导聚光件，所述透明光导聚光件包 括多个入光面，所述透明光导聚光件的每个入光面处设置有一个所述远光光源(21)，所述透明光导聚光件的出光面设置在所述双焦点光学元件(23)的第一焦点区域。
  5. 根据权利要求1所述的ADB远近光一体车灯照明模组，其特征在于，所述远光聚光元件(22)为椭球面反射镜，所述远光聚光元件(22)有多个，每个所述远光光源(21)设置在一个所述远光聚光元件(22)的一个焦点处，多个所述远光聚光元件(22)的另一个焦点均设置在所述双焦点光学元件(23)的第一焦点区域。
  6. 根据权利要求1至5中任一项所述的ADB远近光一体车灯照明模组，其特征在于，所述双焦点光学元件(23)为椭球面反射镜。
  7. 根据权利要求1至5中任一项所述的ADB远近光一体车灯照明模组，其特征在于，所述双焦点光学元件(23)为凸透镜或者透镜组。
  8. 根据权利要求1至5中任一项所述的ADB远近光一体车灯照明模组，其特征在于，所述近光聚光元件(12)为椭球面反射镜，所述近光光源(11)设置在所述近光聚光元件(12)的一个焦点处，所述近光聚光元件(12)的另一个焦点设置在所述准直光学元件(4)的焦点区域。
  9. 根据权利要求8所述的ADB远近光一体车灯照明模组，其特征在于，所述近光光源(11)和近光聚光元件(12)均有多个，每个所述近光光源(11)均设置在一个所述近光聚光元件(12)的第一焦点处，多个所述近光聚光元件(12)的第二焦点均位于所述准直光学元件(4)的焦点区域。
  10. 根据权利要求1至5中任一项所述的ADB远近光一体车灯照明模组，其特征在于，所述近光聚光元件(12)为透明光导聚光件，所述近光光源(11)设置在所述近光聚光元件(12)的入光面处。
  11. 根据权利要求1至5中任一项所述的ADB远近光一体车灯照明模组，其特征在于，所述准直光学元件(4)为抛物面反射镜或者凸透镜。
  12. 一种车灯，其特征在于，包括根据权利要求1至11中任一项所述的ADB远近光一体车灯照明模组。
PCT/CN2021/115676 2021-08-20 2021-08-31 Adb远近光一体车灯照明模组及车灯 WO2023019640A1 (zh)

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CN106574762A (zh) * 2014-08-07 2017-04-19 株式会社小糸制作所 车辆用灯具
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