WO2019196156A1 - 基于光导的远近光系统及车灯 - Google Patents

基于光导的远近光系统及车灯 Download PDF

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Publication number
WO2019196156A1
WO2019196156A1 PCT/CN2018/086100 CN2018086100W WO2019196156A1 WO 2019196156 A1 WO2019196156 A1 WO 2019196156A1 CN 2018086100 W CN2018086100 W CN 2018086100W WO 2019196156 A1 WO2019196156 A1 WO 2019196156A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
collimating
guide
based near
Prior art date
Application number
PCT/CN2018/086100
Other languages
English (en)
French (fr)
Inventor
陈兆禹
Original Assignee
华域视觉科技(上海)有限公司
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 华域视觉科技(上海)有限公司 filed Critical 华域视觉科技(上海)有限公司
Priority to DE112018000017.6T priority Critical patent/DE112018000017B4/de
Priority to JP2018543145A priority patent/JP6799071B2/ja
Priority to US16/090,386 priority patent/US20200158305A1/en
Publication of WO2019196156A1 publication Critical patent/WO2019196156A1/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
    • F21S41/25—Projection lenses
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21S41/10—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
    • F21S41/16—Laser light sources
    • 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
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • 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
    • F21S41/275—Lens surfaces, e.g. coatings or surface structures
    • 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
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
    • 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
    • F21W2102/14—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 having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users
    • F21W2102/145—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 having vertical cut-off lines; specially adapted for adaptive high beams, i.e. wherein the beam is broader but avoids glaring other road users wherein the light is emitted between two parallel vertical cutoff lines, e.g. selectively emitted rectangular-shaped high beam

Definitions

  • the present disclosure relates to the technical field of vehicle lighting systems, and more particularly to a light guide based near-light system and a vehicle lamp.
  • the forms of far and near light are mainly lenticular and reflective, and the form is single.
  • the purpose of the present disclosure includes providing a light guide based near-and near-light system capable of realizing multiple functions such as low beam, high beam, and AFS, ADB, etc., to solve the single technical problem existing in the prior art.
  • a first aspect of the present disclosure provides a light guide based near-light system comprising a collimating light transmissor and a light guide;
  • the collimating light transmissor and the light guide are sequentially disposed along a direction of a light beam emitted by the light source, and a light emitting surface of the light guide is convex, so that at least one light beam emitted by the light source sequentially passes through the collimating light guide and
  • the light guide is emitted to form a spot in which the upper and lower beams are parallel and the left and right beams are diffused, and one of a low beam broadening type, a low beam inflection point type, or a high beam type is realized by a combination of different light sources.
  • the light exit portion of the collimating light transmissor is located on a focal plane of a lens formed by the light guide on a cross section thereof.
  • the optical path diameter of the collimating light transmitter gradually becomes larger and then becomes smaller.
  • the collimating light-transmitting device comprises an light-incident segment that gradually becomes larger from a direction in which the light-incident light faces the light-emitting surface thereof, and a light-emitting segment that gradually becomes smaller from the light-incident light segment toward the light-emitting surface.
  • the extension length of the light incident segment is smaller than the extension length of the light exit segment, and the taper of the light incident segment is greater than the taper of the light exit segment.
  • the light incident surface of the light guide is any one of a group consisting of a plane, a concave surface, and a convex surface.
  • the combination of the collimating light transmissor and the light guide is configured such that when a plurality of the light sources are arranged in an arc along the arc toward the collimating light transilator, light exiting through the light guide The upper end of the light spot formed by the surface is located at the left cutoff line of the national standard near-light.
  • the light pattern is a stretched portion of the low beam type.
  • the height of the light exit portion of the collimating light transmissor when the light spot is a low beam inflection point light is smaller than the height of the light exit portion of the collimating light transmissor when the light spot is a low beam broadening light type;
  • the upper end of the spot formed by a single light source reaches the low beam right cutoff position and forms an inflection point.
  • the collimating light transmissor is configured to be vertically movable relative to the light guide to adjust a height of the light exit portion of the collimating light transmissor relative to the light guide.
  • the opening of the light exit portion of the collimating light transmissor is configured to be adjustable in size
  • the collimating light transmissor is configured to be vertically movable relative to the light guide to adjust the The height of the light exit portion of the collimating light transmissive device relative to the light guide enables the high beam to be formed by adjusting the size of the opening of the light exit portion of the collimating light transmissor and/or its position in the up and down direction of the light guide Light type.
  • the preset light source for forming the high beam spot is configured to be controllable on or off to enable anti-glare function by turning off the preset light source forming the high beam spot.
  • the collimating light transmitter is integrally formed with the light guide.
  • the collimating light-transmitting device is any one of the group consisting of a collimating lens, a concentrator, a convex lens, and a Fresnel.
  • the light incident surface of the light guide is planar and parallel to the focal plane.
  • the collimating light-transmitting device is disposed separately from the light guide;
  • the light guide is an arc-shaped structure formed by a closed cross-section extending along an arc-shaped guide line; and the cross-section is defined by a first edge and a first a second edge line is defined, the first edge line is a straight line, and the second edge line is a convex curved guide line; the first edge line is scanned along the extending direction of the curved guide line to form the light guide.
  • the second edge line scans along a direction in which the curved guide line extends to form a light exit surface of the light guide;
  • the curved line is a curved curve convex outward in a direction protruding toward the second edge line
  • the light exit portion of the collimating light transmissor corresponds to a light incident surface of the light guide.
  • the collimating light-transmitting device is integrally formed with the light guide; a side of the light guide that is away from the light-emitting surface thereof is integrally connected to the light-emitting surface of the collimating light-transmitting device, so that the light guide and The collimating light transmissive device forms a unitary structure.
  • the light-emitting surface of the light guide is an outer convex curved surface formed by an outward convex curve extending along an arc-shaped guide line; the light guide is defined by the light-emitting surface of the collimating light-transmitting device and the light guide Between the light-emitting surfaces, a structure in which the cross section is close to a sector shape is formed.
  • the high-direction dimension of the light-emitting surface of the collimating light-transmitting device is smaller than the high-direction dimension of the light-emitting surface of the light guide, so that the light guide is formed closer to the side of the collimating light-transmitting device than the high-direction dimension.
  • a section that is small, away from the side of the collimator, has a large cross-section with a large dimension and is close to a fan-shaped structure.
  • a vehicle lamp including a light source and the aforementioned light guide-based near-and near-light system, the light source being configured to be disposed corresponding to a collimating light transmissor;
  • the light sources are sequentially arranged along the extending direction of the light guide and are located on a side of the light incident surface of the light guide.
  • the present disclosure has the following beneficial effects:
  • the collimating light transmissor and the light guide are sequentially disposed along a direction of a light beam emitted by the light source, and a light emitting surface of the light guide is convex, so that at least one of the light sources is emitted
  • the light beam is sequentially emitted through the collimator and the light guide to form a spot in which the upper and lower beams are parallel, and the left and right beams are diffused, and the low beam broadening type, the low beam inflection point type or the high beam type is realized by a combination of different light sources.
  • Adaptive Front Lighting System is an abbreviation for the curve-assisted illumination system.
  • Adaptive Driving Beam is an intelligent anti-glare high beam system.
  • LED-ADB refers to an intelligent anti-glare high-beam system that is composed of LEDs and has an ADB function.
  • the LED-ADB system calculates and controls the corresponding LED particles in the high beam group to be darkened or extinguished in real time to avoid dazzling effects on the vehicles in front. While ensuring the best view, it also ensures the safety of driving.
  • FIG. 1 is a schematic structural diagram of a light guide based near-and near-light system according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a cross-section principle of a light guide based near-and near-light system according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a cross-section principle of a light guide-based far and near light system according to another embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a spot formed by a single light source of a light guide based near-and near-light system provided by the present disclosure
  • FIG. 5 is a schematic diagram of a spot formed by a plurality of light sources of a light guide based near-and near-light system provided by the present disclosure
  • FIG. 6 is a schematic diagram of a bending function spot formed by a plurality of light sources of a light guide based near-light system according to the present disclosure
  • FIG. 7 is a schematic structural diagram of a cross-section principle of a light guide-based far and near light system according to still another embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a single inflection point spot formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 9 is a schematic diagram of a plurality of inflection point spots formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 10 is a schematic diagram of a portion of a right turn curve illumination inflection point formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 11 is a schematic diagram of a portion of a left turn curve illumination inflection point formed by a plurality of light sources of a light guide based near-light system according to the present disclosure
  • FIG. 12 is a schematic diagram of a high beam spot formed by a single light source of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 13 is a schematic diagram of a high beam spot formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 14 is a schematic diagram of the light source-based far and near light system of the present disclosure for turning off certain light sources to implement the ADB function.
  • connection In the description of the present disclosure, it should be noted that the terms “installation”, “connected”, and “connected” are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • Connected, or integrally connected can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components.
  • the specific meanings of the above terms in the present disclosure can be understood in the specific circumstances by those skilled in the art.
  • FIG. 1 is a schematic structural diagram of a light guide-based far and near-light system according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a light guide-based far and near light system according to an embodiment of the present disclosure
  • FIG. FIG. 4 is a schematic diagram showing a schematic structure of a light source-based far and near-light system according to another embodiment of the present invention
  • FIG. 4 is a schematic diagram of a light spot formed by a single light source of a light guide-based far and near light system according to the present disclosure
  • FIG. 5 is a schematic diagram of a light spot formed by a plurality of light sources of a light guide-based near-and near-light system according to the present disclosure
  • FIG. 6 is a schematic diagram of a bending function light spot formed by a plurality of light sources of a light guide-based far and near light system provided by the present disclosure
  • FIG. 8 is a schematic diagram of a single inflection point spot formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 9 is a schematic diagram of a plurality of inflection point spots formed by a plurality of light sources of a light guide based near-infrared light system provided by the present disclosure
  • FIG. 10 is a right turn curve formed by a plurality of light sources of the light guide based near-light system provided by the present disclosure
  • FIG. 11 is a schematic diagram of a part of the spot of the left turn curve illumination inflection formed by the plurality of light sources of the light guide based near-light system provided by the present disclosure
  • FIG. 12 is a light guide based near and far light system provided by the present disclosure Schematic diagram of a high beam spot formed by a single light source
  • FIG. 13 is a light guide based near and far light system provided by the present disclosure
  • a schematic diagram of a light beam spot is formed
  • FIG. 14 is a schematic diagram based on the disclosure provided close distance of the optical system of the light guide light source to achieve certain
  • the light guide based near-light system provided by the embodiment includes a collimator and a light guide 3;
  • the collimating light guide and the light guide 3 are sequentially disposed along the direction of the light beam 4 emitted by the light source 1, and the light emitting surface of the light guide 3 is convex, so that at least one The light beam 4 emitted by the light source 1 is sequentially emitted through the collimator and the light guide 3, forming a spot 7 in which the upper and lower beams 4 are parallel, and the left and right beams 4 are diffused, and the low beam broadening mode is realized by the combination of different light sources 1.
  • the light exit portion 6 of the collimator is located on the focal plane 5 of the lens on which the light guide 3 is formed.
  • the light incident surface of the light guide 3 is planar and parallel to the focal plane 5 .
  • the optical path diameter of the collimating light transmitter gradually becomes larger and then becomes smaller.
  • the light incident surface of the light guide 3 is any one of a plane, a concave surface, or a convex surface.
  • the collimating light transmissive device may be a collimating lens 2 or a concentrator, or a convex lens or a Fresnel or other light transmissive device having a collimating function.
  • the collimating lens 2 is selected as a collimating light transmissor, and the light beam 4 emitted by the light source 1 is collimated by the collimating lens 2 and passed through the light guide 3, wherein the light of the collimating light transmitting device
  • the portion 6 is located on the focal plane 5 of the lens formed on the cross section of the light guide 3, and forms a spot 7 in which the upper and lower beams 4 are approximately parallel and the left and right beams 4 are diffused.
  • the collimating lens 2 and the light guide 3 in this embodiment may be disposed as separate components, and then may be indirectly connected; or a composite lens may be formed, that is, the collimator lens 2 and the light guide 3 are integrally formed into a single component.
  • Fig. 2 Shown in Fig. 2 is a form in which the collimator lens 2 and the light guide 3 are disposed in mutually independent parts.
  • the collimator 2 is disposed separately from the light guide 3;
  • the light guide 3 is an arc structure formed by a closed section extending along an arcuate guide line L0 (see FIG. 1); and the section is defined by the first line L2 and the second edge line L1 are defined, the first edge line is a straight line, the second edge line L1 is a convex curved guide line L0; the first edge line L2 is scanned along the extending direction of the curved guide line L0 to form the entrance of the light guide 3.
  • the second edge line L1 is scanned along the extending direction of the curved guiding line L0 to form a light emitting surface of the light guide 3; the curved line is an outward curved curved curve protruding toward the second side line L1; the collimating light transmitting device 2
  • the light exit portion corresponds to the light incident surface of the light guide 3.
  • the collimating light-transmitting device 2 includes an light-incident section 21 that gradually becomes larger from a direction in which the light-incident light faces the light-emitting surface thereof, and a light-emitting section 22 that gradually becomes smaller from the light-incident section 21 toward the light-emitting surface.
  • the length of the light entering section 21 is smaller than the length of the light exiting section 22, and the taper of the light entering section 21 is larger than the taper of the light exiting section 22 to better accommodate the passage of the light beam and form a suitable spot.
  • the collimating light diffuser 2 is configured to be vertically movable relative to the light guide 3 to adjust the height of the light exit portion of the collimating light diffuser 2 relative to the light guide 3.
  • the light guide 3 is fixedly disposed, and the collimator light guide 2 is controllably movable; or the collimator light guide 2 is set to be fixed, and the light guide 3 is set to be controllably movable.
  • the opening of the light exit portion of the collimating light diffuser 2 is configured in a size adjustable manner, and the collimating light diffuser 2 is configured to be vertically movable relative to the light guide 3 to adjust the collimating light transmissive device
  • the height of the light exit portion of the second light relative to the light guide 3 makes it possible to form a high beam light type by adjusting the size of the opening of the light exit portion of the collimator light guide 2 and/or its position in the up and down direction of the light guide 3.
  • the collimating light-transmitting device 2 is integrally formed with the light guide 3; the side of the light guide 3 remote from the light-emitting surface thereof is integrally connected to the light-emitting surface of the collimating light-transmitting device 2, so that the light guide 3 and the collimating light-transmitting device are 2 form an integrated structure.
  • the light-emitting surface of the light guide 3 is an outer convex curved surface formed by an outward convex curve extending along an arc-shaped guide line L0; the light guide 3 is defined between the light-emitting surface of the collimating light-transmitting device 2 and the light-emitting surface of the light guide 3 to form a cross section. Close to the fan-shaped structure.
  • the high-direction dimension of the light-emitting surface of the collimating light-transmitting device 2 is smaller than the high-direction dimension of the light-emitting surface of the light guide 3, so that the light guide 3 is formed close to the side of the collimating light-transmitting device 2, and the high-direction dimension is small and far away.
  • the cross section of the straight light transmitter 2 having a large height dimension is close to a fan-shaped structure.
  • it may also be configured to configure the preset light source for forming the high beam to be controlled to be turned on or off, so that the anti-glare function can be realized by turning off the preset light source forming the high beam spot.
  • the spot 7 formed by the single light source 1, as shown in FIG. 5, is arranged along the arc by a plurality of the light sources 1 to emit light through the light guide 3 toward the collimator.
  • the upper end of the light spot 7 formed by the surface is located at the left cutoff line of the national standard low beam, that is, the spot 7 is located at -0.57, that is, the left cutoff line of the national standard low beam.
  • This light type can be used as a widened portion of the low beam type 8, and can also be used as a V-level low beam in GB/T30036 or ECE R123 alone.
  • the light pattern can be used as a widened portion of the low beam type.
  • the light source 1 may be turned on and off, which may be an LED light source.
  • the outer module can also be turned on (the light pattern of the module and the low beam portion are completely complete). The same, but the angle of the near-light spot is more outward, and the function of extending is realized.
  • the collimation when the light-emitting portion 6 of the collimating light-transmitting device has a height smaller than that of the low-light broadening light type, the collimation is transparent.
  • the upper end of the spot 7 formed by the single light source 1 reaches the low-beam right cut-off line position (specific angle range is -0.57 to 1 degree), and an inflection point is formed.
  • a complete low beam type 8 is formed, which satisfies the definition of low beam in GB25991 or ECE R112; and meets the C and E levels of GB/T30036 or ECE R123. Light requirements.
  • the change of the inflection point position can be realized by controlling the light source 1 to be turned off, thereby achieving the effect of the cornering illumination, thereby realizing the function of the AFS.
  • the anti-glare function can be realized by turning off the preset light source forming the high beam spot. That is to say, some light sources can be turned off separately to form a dark area 10 to avoid other vehicles, to prevent glare, and to realize the ADB function, and the dark area 10 position can be freely adjusted according to the front vehicle position by turning off the light source.
  • the second embodiment of the present disclosure provides a vehicle lamp, comprising the light guide based near-light system and the light source according to any one of the first embodiments, wherein the light source is configured to be corresponding to the collimating light-transmitting device;
  • the light source may be a light source or a laser light source, or may be other suitable light sources.
  • the vehicle lamp provided in the second embodiment of the present disclosure is provided with the light guide-based far and near light system provided in the first embodiment, and therefore has all the beneficial effects of the light guide based near-and near-light system provided in the first embodiment, and will not be further described herein.
  • There are a plurality of the light sources and the plurality of the light sources are sequentially arranged along the extending direction of the light guide, and are located on the light incident surface side of the light guide.
  • the form of the near and far light is mainly a lens type and a reflection type, and the form is single, and the light guide-based far and near light system provided by the present disclosure, the collimating light guide and The light guides are sequentially disposed along a direction of a light beam emitted by the light source, and a light emitting surface of the light guide is a convex surface, so that at least one light beam emitted by the light source is sequentially emitted through the collimating light guide and the light guide to form an up and down beam Parallel, the light spot diffused by the left and right beams can realize one of the low beam broadening light type, the low beam inflection point light type or the high beam light type by a combination of different light sources, and can also realize various functions such as AFS and ADB.
  • the light guide-based far and near light system and the lamp of the present disclosure can realize one of a low beam broadening light type, a low beam inflection point type or a high beam type by a combination of different light sources, and can also implement various functions such as AFS and ADB. Suitable for industrial use.

Abstract

一种车灯照明系统技术领域的基于光导的远近光系统及车灯，远近光系统包括准直透光器（2）和光导（3）；准直透光器（2）和光导（3）沿着光源（1）发射的光束（4）的方向依次设置，光导（3）的出光面为凸面，使至少一个光源（1）发射的光束（4）依次通过准直透光器（2）和光导（3）射出，形成上下光束（4）平行，左右光束（4）扩散的光斑（7）。通过不同光源（1）的组合实现近光展宽光型、近光拐点光型或远光光型中的一种，还可以实现AFS和ADB等多种功能。

Description

基于光导的远近光系统及车灯
相关申请的交叉引用
本申请要求于2018年04月13日提交中国专利局的申请号为2018103317454、名称为“基于光导的远近光系统及车灯”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及车灯照明系统技术领域，尤其是涉及一种基于光导的远近光系统及车灯。
背景技术
目前，在汽车车灯照明光学系统中，远近光的形式主要有透镜式和反射式两种，形式单一。
发明内容
本公开的目的包括，提供一种基于光导的远近光系统，能够实现近光，远光以及AFS，ADB等多种功能，以解决现有技术中存在的形式单一的技术问题。
本公开的目的还包括，提供一种具有上述基于光导的远近光系统的车灯。
为了实现上述目的中的至少一个，本公开提供了以下技术方案：
本公开的第一方面提供了一种基于光导的远近光系统，其包括准直透光器和光导；
所述准直透光器和所述光导沿着光源发射的光束的方向依次设置，所述光导的出光面为凸面，使至少一个所述光源发射的光束依次通过所述准直透光器和所述光导射出，形成上下光束平行、左右光束扩散的光斑，通过不同光源的组合实现近光展宽光型、近光拐点光型或远光光型中的一种。
可选地：所述准直透光器的出光部位于所述光导在其断面上形成的透镜的焦平面上。
可选地：所述准直透光器的光路直径逐渐变大再逐渐变小。
可选地：所述准直透光器包括从其入光面向其出光面的方向逐渐变大的入光段和从入光段向出光面方向逐渐变小的出光段。
可选地：所述入光段的延伸长度小于所述出光段的延伸长度，且所述入光段的锥度大于所述出光段的锥度。
可选地：所述光导的入光面为由平面、凹面、凸面组成的组中的任一种。
可选地：所述准直透光器和所述光导的组合被配置成使得当用多个所述光源沿弧线排布射向所述准直透光器时，经所述光导的出光面形成的光型的光斑上端位于国标近光左侧截止线位置。
可选地：所述光型作为近光型的展宽部分。
可选地：所述光斑为近光拐点光型时所述准直透光器的出光部的高度小于所述光斑为近光展宽光型时所述准直透光器的出光部的高度；单个光源形成的光斑的上端达到近光型右侧截止线位置，并形成拐点。
可选地：所述准直透光器被构造成能够相对所述光导在竖向移动，以调节所述准直透光器的出光部相对所述光导的高度。
可选地：所述准直透光器的出光部的开口被构造成大小可调节的形式，且所述准直透光器被构造成能够相对所述光导在竖向移动，以调节所述准直透光器的出光部相对所述光导的高度，使得能够通过调整所述准直透光器的出光部的开口的大小和/或其位于所述光导的上下方向的位置以形成远光光型。
可选地：用于形成远光光斑的预设的光源被配置成能够受控开启或关闭，以使得能够通过关闭形成远光光斑的预设的光源实现防炫目功能。
可选地：所述准直透光器与所述光导一体成型。
可选地：所述准直透光器为由准直透镜、聚光器、凸透镜、菲涅耳组成的组中的任意一种。
可选地：所述光导的入光面为平面且与所述焦平面平行。
可选地：所述准直透光器与所述光导分离设置；所述光导为由一封闭截面沿一弧形引导线延伸形成的弧形结构；且所述截面由第一边线和第二边线围成，所述第一边线为直线，所述第二边线为外凸的弧形引导线；所述第一边线沿所述弧形引导线的延伸方向扫描形成所述光导的入光面，所述第二边线沿所述弧形引导线的延伸方向扫描形成所述光导的出光面；所述弧形线为朝所述第二边线凸出的方向外凸的弧形曲线；所述准直透光器的出光部对应所述光导的入光面。
可选地：所述准直透光器与所述光导一体成型；所述光导的远离其出光面的一侧一体连接于所述准直透光器的出光面上，以使所述光导和所述准直透光器形成一体结构。
可选地：所述光导的出光面为一外凸曲线沿一弧形引导线延伸形成的外凸形弧面；所述光导限定于所述准直透光器的出光面和所述光导的出光面之间，形成截面接近扇形的结构。
可选地：所述准直透光器的出光面的高向尺寸小于所述光导的出光面的高向尺寸，以使所述光导形成靠近所述准直透光器一侧高向尺寸较小、远离所述准直透光器一侧高向尺寸较大的截面接近扇形的结构。
本公开的另一方面提供一种车灯，其包括光源和前述的基于光导的远近光系统， 所述光源被配置成与准直透光器相对应设置；所述光源有多个，多个所述光源沿所述光导的延伸方向依次排设，并位于所述光导的入光面一侧。
采用上述技术方案，本公开具有如下有益效果：
本公开提供的基于光导的远近光系统，所述准直透光器和所述光导沿着光源发射的光束的方向依次设置，所述光导的出光面为凸面，使至少一个所述光源发射的光束依次通过所述准直透光器和所述光导射出，形成上下光束平行，左右光束扩散的光斑，通过不同光源的组合实现近光展宽光型、近光拐点光型或远光光型中的一种，还可以实现AFS和ADB等多种功能。
需要说明的是，AFS(Adaptive Front lighting System)是弯道辅助照明系统的缩写。自适应远光灯(Adaptive Driving Beam，简称ADB)是一种智能防眩目远光灯系统。LED-ADB是指由LED构成并具备ADB功能的智能防眩目远光灯系统。通过摄像头感知车辆行驶前方存在的其他车辆，LED-ADB系统实时计算并控制远光灯组内相应的LED颗粒变暗或者熄灭，避免对前方车辆产生眩目影响。在保证最佳视野的同时，也保证了驾驶的安全性。
附图说明
为了更清楚地说明本公开的具体实施方式或现有技术中的技术方案下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本公开的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例提供的基于光导的远近光系统的结构示意图；
图2为本公开实施例提供的一种实施方式的基于光导的远近光系统的断面原理结构示意图；
图3为本公开实施例提供的另一种实施方式的基于光导的远近光系统的断面原理结构示意图；
图4为本公开提供的基于光导的远近光系统的单个光源形成的光斑的示意图；
图5为本公开提供的基于光导的远近光系统的多个光源形成的光斑的示意图；
图6为本公开提供的基于光导的远近光系统的多个光源形成的bending功能光斑的示意图；
图7为本公开实施例提供的再一种实施方式的基于光导的远近光系统的断面原理结构示意图；
图8为本公开提供的基于光导的远近光系统的多个光源形成的单个拐点部分光斑的示意图；
图9为本公开提供的基于光导的远近光系统的多个光源形成的多个拐点部分光斑的示意图；
图10为本公开提供的基于光导的远近光系统的多个光源形成的右转弯道照明拐点部分光斑的示意图；
图11为本公开提供的基于光导的远近光系统的多个光源形成的左转弯道照明拐点部分光斑的示意图；
图12为本公开提供的基于光导的远近光系统的单个光源形成的远光光斑的示意图；
图13为本公开提供的基于光导的远近光系统的多个光源形成的远光光斑的示意图；
图14为本公开提供的基于光导的远近光系统的关闭某些光源实现ADB功能的示意图。
附图标记：1-光源；2-准直透镜；21-入光段；22-出光段；3-光导；4-光束；5-焦平面；6-出光部；7-光斑；8-近光光型；9-远光光斑；10-暗区；L0-弧形引导线；L1-第二边线；L2-第一边线。
具体实施方式
下面将结合附图对本公开的技术方案进行清楚、完整地描述，显然，所描述的实施例是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在本公开的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
下面结合具体的实施方式对本公开做进一步的解释说明。
图1为本公开实施例提供的基于光导的远近光系统的结构示意图；图2为本公开实施例提供的一种实施方式的基于光导的远近光系统的断面原理结构示意图；图3为本公开实施例提供的另一种实施方式的基于光导的远近光系统的断面原理结构示意图；图4为本公开提供的基于光导的远近光系统的单个光源形成的光斑的示意图；
图5为本公开提供的基于光导的远近光系统的多个光源形成的光斑的示意图；图6为本公开提供的基于光导的远近光系统的多个光源形成的bending功能光斑的示意图；图7为本公开实施例提供的再一种实施方式的基于光导的远近光系统的断面原理结构示意图；图8为本公开提供的基于光导的远近光系统的多个光源形成的单个拐点部分光斑的示意图；图9为本公开提供的基于光导的远近光系统的多个光源形成的多个拐点部分光斑的示意图；图10为本公开提供的基于光导的远近光系统的多个光源形成的右转弯道照明拐点部分光斑的示意图；图11为本公开提供的基于光导的远近光系统的多个光源形成的左转弯道照明拐点部分光斑的示意图；图12为本公开提供的基于光导的远近光系统的单个光源形成的远光光斑的示意图；图13为本公开提供的基于光导的远近光系统的多个光源形成的远光光斑的示意图；图14为本公开提供的基于光导的远近光系统的关闭某些光源实现ADB功能的示意图。
实施例一
如图1-图14所示，本实施例提供的基于光导的远近光系统，包括准直透光器和光导3；
具体地，如图1-图3所示，所述准直透光器和所述光导3沿着光源1发射的光束4的方向依次设置，所述光导3的出光面为凸面，使至少一个所述光源1发射的光束4依次通过所述准直透光器和所述光导3射出，形成上下光束4平行，左右光束4扩散的光斑7，通过不同光源1的组合实现近光展宽光型、近光拐点光型或远光光型中的一种。
在上述实施例的基础上，如图2-图3所示，所述准直透光器的出光部6位于所述光导3在其断面上形成的透镜的焦平面5上。可选的，光导3的入光面为平面且与所述焦平面5平行。
可选的，所述准直透光器的光路直径逐渐变大再逐渐变小。
需要说明的是，所述光导3的入光面为平面、凹面或凸面中的任一种。另外，所述准直透光器可以使准直透镜2或聚光器、或凸透镜或菲涅耳或其他具有准直功能的透光器件。
作为一个可选的实施方式，选择准直透镜2作为准直透光器，光源1射出的光束4，经过准直透镜2准直后，通过光导3，其中所述准直透光器的出光部6位于所述光导3在其断面上形成的透镜的焦平面5上，形成上下光束4近似平行，左右光束4扩散的光斑7。
本实施例中的准直透镜2和光导3之间可以设置为相互独立的零件，然后可间接连接； 也可以形成复合透镜，即将准直透镜2和光导3一体成型成一个单独的零件。
图2中示出的为准直透镜2和光导3设置成相互独立的零件的形式。参见图2，准直透光器2与光导3分离设置；光导3为由一封闭截面沿一弧形引导线L0(配合参见图1)延伸形成的弧形结构；且截面由第一边线L2和第二边线L1围成，第一边线为直线，第二边线L1为外凸的弧形引导线L0；第一边线L2沿弧形引导线L0的延伸方向扫描形成光导3的入光面，第二边线L1沿弧形引导线L0的延伸方向扫描形成光导3的出光面；弧形线为朝第二边线L1凸出的方向外凸的弧形曲线；准直透光器2的出光部对应光导3的入光面。可选地，准直透光器2包括从其入光面向其出光面的方向逐渐变大的入光段21和从入光段21向出光面方向逐渐变小的出光段22。可选地，入光段21的延伸长度小于出光段22的延伸长度，且入光段21的锥度大于出光段22的锥度，以更好地容纳光束的通过和形成合适的光斑。
在可选地的实施方式中，准直透光器2被构造成能够相对光导3在竖向移动，以调节准直透光器2的出光部相对光导3的高度。例如在车灯结构中，将光导3固定设置，而准直透光器2可受控地活动设置；或者将准直透光器2设置为固定，光导3设置成可受控地活动。可选地，准直透光器2的出光部的开口被构造成大小可调节的形式，且准直透光器2被构造成能够相对光导3在竖向移动，以调节准直透光器2的出光部相对光导3的高度，使得能够通过调整准直透光器2的出光部的开口的大小和/或其位于光导3的上下方向的位置以形成远光光型。
参见图3，准直透光器2与光导3一体成型；光导3的远离其出光面的一侧一体连接于准直透光器2的出光面上，以使光导3和准直透光器2形成一体结构。光导3的出光面为一外凸曲线沿一弧形引导线L0延伸形成的外凸形弧面；光导3限定于准直透光器2的出光面和光导3的出光面之间，形成截面接近扇形的结构。可选地，准直透光器2的出光面的高向尺寸小于光导3的出光面的高向尺寸，以使光导3形成靠近准直透光器2一侧高向尺寸较小、远离准直透光器2一侧高向尺寸较大的截面接近扇形的结构。
本实施例中，还可设置为将用于形成远光斑的预设的光源配置成能够受控开启或关闭，以使得能够通过关闭形成远光光斑的预设的光源实现防炫目功能。
如图4所示，通过单个光源1形成的光斑7，如图5所示，当用多个所述光源1沿弧线排布射向所述准直透光器经所述光导3的出光面形成的光型的光斑7上端位于国标近光左侧截止线位置，即其光斑7上方位于-0.57，即国标近光左侧截止线位置。此光型可作为近光光型8的展宽部分，同时也可单独作为GB/T30036或ECE R123中的V级近光。
可选的，所述光型可作为近光型的展宽部分。另外，如图6所示，还可以通过控制光 源1的亮灭，可以是LED光源，通过LED亮灭的控制，还可以开启外侧的模块(该模块的光型与近光部分的光型完全相同，但是相对近光光斑的角度更偏向外侧)，实现bending的功能。
在上述实施例的一个实施方式中，如图7所示，当为近光拐点光型时，所述准直透光器的出光部6的高度小于近光展宽光型时所述准直透光器的出光部6的高度；可以形成更为集中的光斑7。
如图8所示，单个光源1形成的光斑7的上端达到近光型右侧截止线位置(具体角度范围为-0.57～1度)，并形成拐点。
如图9所示，当多个光源1同时点亮时形成完整的近光光型8，满足GB25991或ECE R112中近光的定义；同时满足GB/T30036或ECE R123中C级和E级近光的要求。
当车辆处于弯道中，如图10和图11所示，可以通过控制光源1的亮灭，实现拐点位置的变更，从而达到弯道照明的效果，从而实现AFS的功能。
在上述实施例的另一个可选的实施方式中，如图12和13所示，通过调整所述准直透光器的出光部6的开口的大小和其位于所述光导3的上下方向的位置能够形成远光光斑9。
当多个光源1同时点亮形成远光光型。
在上述实施例的再一个可选的实施方式中，如图14所示，通过关闭形成远光光斑的预设的光源，能够实现防炫目功能。也就是可以单独关闭某些光源形成暗区10规避其他车辆，防止眩目，实现ADB功能，暗区10位置可以根据前车位置通过关灭光源自由调整。
实施例二
本公开实施例二提供一种车灯，包括上述实施例一的任一技术方案中所述的基于光导的远近光系统和光源，所述光源用于与准直透光器相对应设置；
所述光源为LED可以是光源或激光光源，也可以是其他合适的光源。
本公开实施例二提供的车灯，设置有实施例一提供的基于光导的远近光系统，因此具有实施例一提供的基于光导的远近光系统的全部有益效果，在此就不一一赘述。所述光源有多个，多个所述光源沿所述光导的延伸方向依次排设，并位于所述光导的入光面一侧。
具体而言，在汽车车灯照明光学系统中，远近光的形式主要有透镜式和反射式两种，形式单一，而本公开提供的基于光导的远近光系统，所述准直透光器和所述光导沿着光源发射的光束的方向依次设置，所述光导的出光面为凸面，使至少一个所述光源发射的光束依次通过所述准直透光器和所述光导射出，形成上下光束平行，左右光束扩散的光斑，通过不同光源的组合实现近光展宽光型、近光拐点光型或远光光型中的一种，还可以实现AFS和ADB等多种功能。
最后应说明的是：以上各实施例仅用以说明本公开的技术方案，而非对其限制；尽管参照前述各实施例对本公开进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本公开各实施例技术方案的范围。此外，本领域的技术人员能够理解，尽管在此所述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征，但是不同实施例的特征的组合意味着处于本公开的范围之内并且形成不同的实施例。例如，在上面的权利要求书中，所要求保护的实施例的任意之一都可以以任意的组合方式来使用。公开于该背景技术部分的信息仅仅旨在加深对本公开的总体背景技术的理解，而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。
工业实用性
本公开的基于光导的远近光系统及车灯能够通过不同光源的组合实现近光展宽光型、近光拐点光型或远光光型中的一种，还可以实现AFS和ADB等多种功能，适于工业实用。

Claims (20)

  1. 一种基于光导的远近光系统，其特征在于，包括准直透光器和光导；
    所述准直透光器和所述光导沿着光源发射的光束的方向依次设置，所述光导的出光面为凸面，使至少一个所述光源发射的光束依次通过所述准直透光器和所述光导射出，形成上下光束平行、左右光束扩散的光斑，通过不同光源的组合实现近光展宽光型、近光拐点光型或远光光型中的一种。
  2. 根据权利要求1所述的基于光导的远近光系统，其特征在于，.
    所述准直透光器的出光部位于所述光导在其断面上形成的透镜的焦平面上。
  3. 根据权利要求2所述的基于光导的远近光系统，其特征在于，
    所述准直透光器的光路直径逐渐变大再逐渐变小。
  4. 根据权利要求1-3任一项所述的基于光导的远近光系统，其特征在于，
    所述准直透光器包括从其入光面向其出光面的方向逐渐变大的入光段和从入光段向出光面方向逐渐变小的出光段。
  5. 根据权利要求4所述的基于光导的远近光系统，其特征在于，
    所述入光段的延伸长度小于所述出光段的延伸长度，且所述入光段的锥度大于所述出光段的锥度。
  6. 根据权利要求1所述的基于光导的远近光系统，其特征在于，
    所述光导的入光面为由平面、凹面、凸面组成的组中的任一种。
  7. 根据权利要求1所述的基于光导的远近光系统，其特征在于，
    所述准直透光器和所述光导的组合被配置成使得当用多个所述光源沿弧线排布射向所述准直透光器时，经所述光导的出光面形成的光型的光斑上端位于国标近光左侧截止线位置。
  8. 根据权利要求7所述的基于光导的远近光系统，其特征在于，
    所述光型作为近光型的展宽部分。
  9. 根据权利要求3所述的基于光导的远近光系统，其特征在于，
    所述光斑为近光拐点光型时所述准直透光器的出光部的高度小于所述光斑为近光展宽光型时所述准直透光器的出光部的高度；
    单个光源形成的光斑的上端达到近光型右侧截止线位置，并形成拐点。
  10. 根据权利要求9所述的基于光导的远近光系统，其特征在于：
    所述准直透光器被构造成能够相对所述光导在竖向移动，以调节所述准直透光器的出光部相对所述光导的高度。
  11. 根据权利要求9所述的基于光导的远近光系统，其特征在于：
    所述准直透光器的出光部的开口被构造成大小可调节的形式，且所述准直透光器被构造成能够相对所述光导在竖向移动，以调节所述准直透光器的出光部相对所述光导的高度，使得能够通过调整所述准直透光器的出光部的开口的大小和/或其位于所述光导的上下方向的位置以形成远光光型。
  12. 根据权利要求9所述的基于光导的远近光系统，其特征在于，
    用于形成远光光斑的预设的光源被配置成能够受控开启或关闭，以使得能够通过关闭形成远光光斑的预设的光源实现防炫目功能。
  13. 根据权利要求1所述的基于光导的远近光系统，其特征在于，
    所述准直透光器与所述光导一体成型。
  14. 根据权利要求1所述的基于光导的远近光系统，其特征在于，
    所述准直透光器为由准直透镜、聚光器、凸透镜和菲涅耳组成的组中的任意一种。
  15. 根据权利要求2所述的基于光导的远近光系统，其特征在于：
    所述光导的入光面为平面且与所述焦平面平行。
  16. 根据权利要求1所述的基于光导的远近光系统，其特征在于，
    所述准直透光器与所述光导分离设置；
    所述光导为由一封闭截面沿一弧形引导线延伸形成的弧形结构；且所述截面由第一边线和第二边线围成，所述第一边线为直线，所述第二边线为外凸的弧形引导线；
    所述第一边线沿所述弧形引导线的延伸方向扫描形成所述光导的入光面，所述第二边线沿所述弧形引导线的延伸方向扫描形成所述光导的出光面；所述弧形线为朝所述第二边线凸出的方向外凸的弧形曲线；
    所述准直透光器的出光部对应所述光导的入光面。
  17. 根据权利要求4所述的基于光导的远近光系统，其特征在于，
    所述准直透光器与所述光导一体成型；
    所述光导的远离其出光面的一侧一体连接于所述准直透光器的出光面上，以使所述光导和所述准直透光器形成一体结构。
  18. 根据权利要求17所述的基于光导的远近光系统，其特征在于，
    所述光导的出光面为一外凸曲线沿一弧形引导线延伸形成的外凸形弧面；所述光导限定于所述准直透光器的出光面和所述光导的出光面之间，形成截面接近扇形的结构。
  19. 根据权利要求18所述的基于光导的远近光系统，其特征在于，
    所述准直透光器的出光面的高向尺寸小于所述光导的出光面的高向尺寸，以使所 述光导形成靠近所述准直透光器一侧高向尺寸较小、远离所述准直透光器一侧高向尺寸较大的截面接近扇形的结构。
  20. 一种车灯，其特征在于，包括有光源和如权利要求1至19中任一项所述的基于光导的远近光系统，所述光源被配置成与准直透光器相对应设置；
    所述光源有多个，多个所述光源沿所述光导的延伸方向依次排设，并位于所述光导的入光面一侧。
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CN108397746A (zh) 2018-08-14
DE112018000017B4 (de) 2023-05-25
US20200158305A1 (en) 2020-05-21

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