WO2020199735A1 - Structure de distribution de lumière de feu de croisement de véhicule - Google Patents

Structure de distribution de lumière de feu de croisement de véhicule Download PDF

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Publication number
WO2020199735A1
WO2020199735A1 PCT/CN2020/073233 CN2020073233W WO2020199735A1 WO 2020199735 A1 WO2020199735 A1 WO 2020199735A1 CN 2020073233 W CN2020073233 W CN 2020073233W WO 2020199735 A1 WO2020199735 A1 WO 2020199735A1
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WIPO (PCT)
Prior art keywords
light
optical
lens
collimating lens
distribution structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2020/073233
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English (en)
Chinese (zh)
Inventor
郭壮柱
郭青杰
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Mind Electronics Appliance Co Ltd
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Mind Electronics Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mind Electronics Appliance Co Ltd filed Critical Mind Electronics Appliance Co Ltd
Priority to DE112020001668.4T priority Critical patent/DE112020001668B4/de
Publication of WO2020199735A1 publication Critical patent/WO2020199735A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • F21S41/27—Thick 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • 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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • 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
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • 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
    • F21S41/29—Attachment thereof
    • 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
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • 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
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • 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

Definitions

  • the present invention relates to the technical field of vehicle lights, in particular to a vehicle low beam light distribution structure.
  • LED light sources have many advantages in performance and cost, major vehicle manufacturers have begun to research and develop LED lights, especially in the mid-to-high-end vehicle market. Basically, all systems have standard LED light sources, and relatively low-end models are also The LED light source is gradually being replaced.
  • the existing low-beam light distribution modules can basically be realized in two types: pure reflection and projection.
  • the pure reflection is LED particles and a reflective bowl to achieve a low-beam light type, and the interior of the reflective bowl is generally aluminum-plated.
  • the projection type is LED particles plus a reflective bowl and an outer lens, the focal point of the lens coincides with the focal point of the reflective bowl, and the outer lens is used to focus the light pattern.
  • the projected low beam can make the low beam type more uniform and the appearance will be more refined, but because these two methods are limited to the shape of the reflective bowl Therefore, it is impossible to perform unilateral size changes in the Z-direction (ie, the height direction) alone, and it is difficult to meet the trend of gradual shrinkage of the vehicle lights in the Z-direction alone.
  • the present invention aims to propose a vehicle low beam light distribution structure to meet the trend of Z-direction shrinkage.
  • a vehicle low-beam light distribution structure is used to form a configuration of light beams emitted by a light source to form a low-beam type, and the vehicle low-beam light distribution structure includes:
  • a collimating lens having a first optical input end for receiving the light beam emitted by the light source, and an opaque cut-off part configured in the collimating lens for forming a cut-off contour of light and dark in the received light beam, And a first optical output end for beam outputting the collimator lens;
  • An outer lens having a main body capable of holding the collimating lens, and an optical part constructed on the main body, and the optical part is located at the collimating lens installed in the main body to output the light beam
  • the second optical input end for receiving the output beam and a second optical output end for outputting the optical part on the transmission path of the beam.
  • cut-off part is integrally molded into the collimating lens.
  • the first optical input end includes a recess that is recessed on the collimating lens, and a protrusion constructed at the bottom of the recess and protruding toward the opening of the recess; the convex A first optical surface for inputting part of the light beam from the light source into the collimating lens is formed on the raised outer wall, and a second optical surface for refracting other light beams from the light source is formed on the side wall of the recess A third optical surface that totally reflects the refracted light beam is formed on the outer wall of the collimating lens corresponding to the second optical surface.
  • the first optical output end includes an arc-shaped convex first light-emitting surface formed on the collimating lens.
  • the light source is at least two arranged in sequence, the number of the first optical input end and the first optical output end matches the light source, and the light source, the first optical input end and The first optical output ends are arranged in one-to-one correspondence.
  • the second optical input end includes a second light incident surface corresponding to some of the first optical output ends, and a third light incident surface corresponding to other first optical output ends;
  • the second optical output end includes an arc-shaped convex second light-emitting surface formed on the outer lens, the third light-incident surface conforms to the second light-emitting surface, and the second light-incident surface is A convex curved surface on one side of the collimating lens.
  • first optical input ends there are four first optical input ends and four first optical output ends, two second light incident surfaces, and two second light incident surfaces respectively correspond to two of the The first optical output end is arranged, and the third light incident surface is arranged corresponding to the other two first optical output ends.
  • a mounting post is provided on the collimating lens, and a mounting hole for inserting and fitting with the mounting post is provided on the outer lens to install the collimating lens.
  • the outer lens is provided with a fixing hole for fixing the outer lens on the outer member, and the fixing hole is adjacent to the mounting hole.
  • a receiving groove is configured in the main body, the optical part constitutes the bottom of the receiving groove, and an end portion of the collimating lens having the first optical output end is received in the receiving In the slot.
  • the present invention has the following advantages:
  • the low-beam light distribution structure of the present invention forms a low-beam type through the cooperation of the collimator lens and the outer lens, and realizes the pure projection form of the low-beam using only the lens, and eliminates the reflective bowl, so that the lens can be used
  • the principle of total reflection is to greatly reduce the light outlet in the Z-direction, which can meet the trend of shrinking in the Z-direction and improve the refinement of the overall light distribution module;
  • the cut-off part is integrally injection molded into the collimator lens, which can improve the refinement of the lens structure;
  • the structural design of the first optical input end can realize the collection of the light beam emitted by the light source and reduce the loss of the light beam, thereby helping to meet the narrowing of the Z-direction size;
  • the arrangement of the second optical input end and the second optical output end can make the final low-beam type with bright and dark cut-off contours better;
  • the arrangement of the collimating lens on the outer lens can improve the tinyness of the overall structure, and the matching installation form of the mounting post and the mounting hole can facilitate the installation of the collimating lens;
  • the light-emitting end part of the collimator lens is accommodated and arranged, which can further improve the delicacy of the light distribution structure and help avoid the loss of light beams.
  • FIG. 1 is an overall schematic diagram of a light distribution structure according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of the structure of a collimating lens according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view of the collimating lens according to an embodiment of the invention.
  • FIG. 4 is a schematic structural diagram of a first optical input terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a collimating lens without a cut-off part according to an embodiment of the present invention.
  • Figure 6 is a cross-sectional view in the direction of A-A in Figure 5;
  • FIG. 7 is a schematic diagram of the structure of the outer lens according to an embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of the outer lens according to an embodiment of the invention.
  • FIG. 9 is a schematic diagram of the light type of the light distribution structure according to an embodiment of the present invention.
  • This embodiment relates to a vehicle low-beam light distribution structure, which is used to configure the light beam emitted by the light source to form a low-beam light type.
  • the low-beam light distribution structure as a whole includes a collimator The lens 1 and the outer lens 2, and through the cooperation of the collimator lens 1 and the outer lens 2, form the aforementioned low beam type.
  • the light distribution structure of this embodiment realizes the pure projection form of the low beam by using only the lens, and the reflective bowl can be eliminated. Therefore, the total reflection principle of the lens can be used to greatly reduce the light outlet in the Z direction. To meet the trend of Z-direction shrinkage, it can also improve the refinement of the overall light distribution module.
  • the collimating lens 1 has a first optical input terminal 101 that receives the light beam emitted by the light source 3, and is configured in the collimating lens 1 to form a cut-off contour in the received light beam.
  • the opaque cut-off part 103 is used for beam output, and the first optical output end 102 of the collimator lens 1 is used for beam output.
  • the cut-off portion 103 in the collimator lens 1 of this embodiment is preferably molded into the collimator lens 1 by integral injection molding, and the opacity of the cut-off portion 103 is controlled by the injection molding cut-off portion
  • the color of 103 can be easily realized, and the color of the cut-off portion 103 is preferably milky white, for example, of course, other colors of the cut-off portion 103 can also be used in addition to milky white.
  • the first optical input end 101 on the collimating lens 1 of this embodiment specifically includes a notch 1010 that is recessed on the end of the collimating lens 1, and a notch 1010 configured on the
  • the protrusion 1011 at the bottom that protrudes toward the opening of the recess 1010, the shape of the recess 1010 and the protrusion 1011 can be as shown in FIG. 4.
  • a first optical surface 1012 is formed on the outer wall of the protrusion 1011 for a part of the light beam from the light source 3 to enter the collimating lens 1, and a side wall of the recess 1010 is formed to refract other light beams from the light source 3.
  • the second optical surface 1013 corresponds to the second optical surface 1013, and a third optical surface 1014 that totally reflects the light beam refracted by the second optical surface 1013 is also formed on the outer wall of the collimating lens 1.
  • the first optical input terminal 101 of this embodiment can condense most of the light beam emitted by the light source 3 through the first optical surface 1012, and the second The optical surface 1013 can refract other light beams emitted by the light source 3, and then pass through the third optical surface 1014 after being refracted for total reflection, which can basically realize the full utilization of the light beams emitted by the light source 3, which is compared with the existing optical lens.
  • the input end structure can achieve the purpose of improving the utilization rate of the light source 3.
  • the light source 3 is generally LED particles, and the three optical surfaces in the first optical input terminal 101 can obtain the required light type through the cooperation of the curvature characteristics of each other.
  • the specific curvature characteristics between the above three optical surfaces can be specifically selected during the design according to actual low beam design requirements, and will not be repeated here.
  • the light distribution structure can output the corresponding cut-off line of light and darkness required by the low beam.
  • the contour line 4 in FIG. 6 is formed by the setting of the cut-off portion 103, and it is also the boundary of the shielding part that blocks the light beam. The shape of the contour line 4 determines the shape of the output light beam.
  • the contour line 4 is specifically set in the form of a broken line.
  • an anti-glare point 5 is also provided on the contour 4 of the collimating lens 1, and the anti-glare point 5 is located on the body of the collimating lens 1 The top appears as a pit structure.
  • the specific design of the anti-glare point 5 can refer to the requirements of relevant laws and regulations. At the same time, since the anti-glare requirements have nothing to do with the realization of the low-beam optical function of this embodiment, it will not be described in detail.
  • the first optical output terminal 102 on the collimator lens 1 of this embodiment is specifically an arc-shaped convex first light exit surface formed on the collimator lens 1.
  • the light source 3 in this embodiment is arranged in sequence, for example, four, the number of the first optical input terminal 101 and the first optical output terminal 102 matches the arrangement of the light source 3, and
  • the light source 3, the first optical input terminal 101 and the first optical output terminal 102 are arranged in a one-to-one correspondence, and the specific structure can be referred to as shown in FIG. 2 or FIG. 5.
  • the outer lens 2 has a main body 201 that can hold the collimator lens 1, and an optical section 202 constructed on the main body 201.
  • the collimator lens 1 provided in the main body 201 is on the transmission path of the output light beam.
  • the optical processing function of the outer lens 2 is implemented by the optical section 202, and specifically, similar to the collimator lens 1, the optical section 202 also has a second optical input end that receives the light beam output by the collimator lens 1, and a beam output optical The second optical output end of the section 202 (also the output outer lens 2).
  • the second optical input end includes a second light incident surface 2021 corresponding to two of the first optical output ends 102, and a third light incident surface 2022 corresponding to the other two first optical output ends 102.
  • the second optical output end includes an arc-shaped convex second light-emitting surface 2023 formed on the outer lens 2.
  • the third light-incident surface 2022 of the present embodiment is arranged on the second light-emitting surface 2023 according to the shape, that is to say, the curvatures of the third light-incident surface 2022 and the second light-emitting surface 2023 are the same, so that the optical portion 202
  • the portion corresponding to the third light-incident surface 2022 is formed into a structure of equal thickness
  • the second light-incident surface 2021 is an arc surface convex to the collimator lens side.
  • the above-mentioned third light incident surface 2022 has no optical effect due to the structure of equal wall thickness, and the convex second light incident surface 2021 can further converge the light beam, so that the outer lens 2 can pass through the collimating lens 1.
  • the illuminance value at the cut-off line is higher, resulting in a clearer cut-off line.
  • the collimating lens 1 is mounted on the outer lens 2, which can make the light distribution structure more refined as a whole.
  • the collimating lens 1 A mounting post 104 is provided on the upper lens 2, and a mounting hole 2011 for inserting and fitting the mounting post 104 to install the collimating lens 1 is provided on the outer lens 2. During installation, the mounting post 104 can be inserted and fixed in the mounting hole 2011.
  • the outer lens 2 may also be provided with a fixing hole 2012 adjacent to the mounting hole 2011 for fixing the outer lens 2 on the external member, through which fixing hole
  • the fixing method of 2012 can refer to the existing conventional technology.
  • the main body 201 of the outer lens 2 may also be configured with a receiving groove shown in FIG. 7 or FIG. 8, and the optical portion 202 constitutes the container. The bottom of the groove is placed, and the end of the collimating lens 1 with the first optical output end 102 is partially received in the containing groove.
  • the light distribution structure of this embodiment realizes a pure projection optical form through the collimator lens 1 and the outer lens 2, and the low beam type obtained by the collimator lens 1 and the outer lens 2 is shown in FIG. 9 ,
  • the light pattern is composed of light pattern 1 and light pattern 2, and each light pattern is generated by a combination of multiple beams.
  • the light type 1 is formed by the light and dark cut-off contour after passing through the collimating lens 1 and then converging the light beam through the outer lens 2. Therefore, the light type 1 is smaller than the light type 2, but has a higher illuminance value than the light type 2, which can improve the vehicle The lighting effect straight ahead.
  • Light type 2 directly outputs the light beam from the third light-incident surface 2022 part of the outer lens 2 after passing through the collimating lens 1, so as to increase the widening range of the low-beam light type, thereby illuminating the area on both sides of the front of the vehicle. object.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une structure de distribution de lumière de feu de croisement de véhicule, servant à configurer des faisceaux lumineux émis par une source de lumière, de façon à former un motif de lumière de feu de croisement. La structure de distribution de lumière de feu de croisement comprend une lentille de collimation (1) et une lentille externe (2). La lentille de collimation (1) est pourvue d'une première extrémité d'entrée optique (101) destinée à recevoir des faisceaux lumineux émis par des sources de lumière (3), d'une partie de coupure opaque (103) disposée dans la lentille de collimation (1) et servant à former un contour de coupure lumineux/sombre dans les faisceaux lumineux reçus, et d'une première extrémité de sortie optique (102) permettant d'émettre les faisceaux de lumière à partir de la lentille de collimation (1). La lentille externe (2) est pourvue d'un corps principal (201) apte à porter la lentille de collimation (1), et d'une partie optique (202) disposée sur le corps principal (201). La partie optique (202) est pourvue d'une seconde extrémité d'entrée optique destinée à recevoir les faisceaux lumineux délivrés par la première extrémité de sortie optique (102) et d'une seconde extrémité de sortie optique permettant de délivrer les faisceaux lumineux à partir de la partie optique. La structure de distribution de lumière de feu de croisement permet d'obtenir une atténuation dans la direction Z d'une sortie de lumière dans une large mesure en faisant appel au principe de réflexion totale de lentilles, ce qui permet de satisfaire l'intention d'atténuation dans la direction Z, et d'améliorer également l'affinement de tout le module de distribution de lumière.
PCT/CN2020/073233 2019-03-29 2020-01-20 Structure de distribution de lumière de feu de croisement de véhicule Ceased WO2020199735A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112020001668.4T DE112020001668B4 (de) 2019-03-29 2020-01-20 Fahrzeug-Abblendlicht-Verteilungsstruktur

Applications Claiming Priority (2)

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CN201920424793.8U CN209801362U (zh) 2019-03-29 2019-03-29 车辆近光配光结构
CN201920424793.8 2019-03-29

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WO2020199735A1 true WO2020199735A1 (fr) 2020-10-08

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CN209801362U (zh) * 2019-03-29 2019-12-17 曼德电子电器有限公司 车辆近光配光结构
CN212132313U (zh) * 2020-03-09 2020-12-11 华域视觉科技(上海)有限公司 车灯光学元件组件、车辆照明装置、车灯和车辆
US20230272899A1 (en) * 2022-02-28 2023-08-31 J.W. Speaker Corporation Small aperture low-beam and high-beam system and methods
CN117605973A (zh) * 2023-12-27 2024-02-27 安徽森海为视觉科技有限公司 一种车灯光学元件、车灯模组和车辆

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CN109027947A (zh) * 2018-08-28 2018-12-18 江阴司达光电科技有限公司 汽车led前大灯
CN209801362U (zh) * 2019-03-29 2019-12-17 曼德电子电器有限公司 车辆近光配光结构

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