WO2021121131A1 - 光学元件、车灯模组、车灯及车辆 - Google Patents

光学元件、车灯模组、车灯及车辆 Download PDF

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Publication number
WO2021121131A1
WO2021121131A1 PCT/CN2020/135363 CN2020135363W WO2021121131A1 WO 2021121131 A1 WO2021121131 A1 WO 2021121131A1 CN 2020135363 W CN2020135363 W CN 2020135363W WO 2021121131 A1 WO2021121131 A1 WO 2021121131A1
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WIPO (PCT)
Prior art keywords
light
optical element
light guide
incident
element according
Prior art date
Application number
PCT/CN2020/135363
Other languages
English (en)
French (fr)
Inventor
祝贺
桑文慧
李聪
张大攀
仇智平
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 JP2022503867A priority Critical patent/JP7317205B2/ja
Priority to MX2022000226A priority patent/MX2022000226A/es
Priority to EP20903488.3A priority patent/EP3988836B1/en
Priority to KR1020227001905A priority patent/KR102695115B1/ko
Priority to US17/624,039 priority patent/US11926254B2/en
Publication of WO2021121131A1 publication Critical patent/WO2021121131A1/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
    • F21S41/10—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0029—Spatial arrangement
    • B60Q1/0041—Spatial arrangement of several lamps in relation to each other
    • 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]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • 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
    • F21S41/30—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
    • 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
    • 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
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • 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
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0011—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor with light guides for distributing the light between several lighting or signalling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
    • 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
    • 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
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/10—Light sources with three-dimensionally disposed light-generating elements on concave supports or substrates, e.g. on the inner side of bowl-shaped supports

Definitions

  • the present invention relates to vehicle lighting technology, in particular to an optical element, and in addition, it also relates to a vehicle lamp module, a vehicle lamp and a vehicle.
  • vehicle lighting device includes multiple scattered vehicle lighting units, and each vehicle lighting unit is scattered and independent of each other. There are corresponding light-incoming parts and light-exiting parts, which can produce multiple illumination areas.
  • multiple vehicle lighting units are arranged separately and independently.
  • the entire vehicle lighting device occupies a large space and increases the volume of the vehicle lights.
  • multiple scattered light-emitting surfaces cannot satisfy customers' demands on the vehicle.
  • the appearance requirements of the light-emitting surface of the lamp; the third aspect, the positioning and installation errors between multiple vehicle lighting units and between the components of each vehicle lighting unit are relatively large, which affects the accuracy of the optical system.
  • the technical problem to be solved by the first aspect of the present invention is to provide an optical element, which can reduce the occupied space, improve the space utilization rate, and is beneficial to reduce positioning and installation errors, and has a narrow and long appearance.
  • the technical problem to be solved by the second aspect of the present invention is to provide a vehicle lamp module, which has a higher optical system accuracy, a better lighting effect, and a narrow and long appearance.
  • the technical problem to be solved by the third aspect of the present invention is to provide a vehicle lamp, which has a better lighting effect and has a narrow and long appearance.
  • the technical problem to be solved by the fourth aspect of the present invention is to provide a vehicle which has a good space utilization rate and is convenient for structural design.
  • the first aspect of the present invention provides an optical element, including a light guide, the light guide includes a plurality of light entrance parts, light guide parts and light exit parts arranged along the length extension direction of the light guide body. At least one light incident unit is provided on the light incident section, and the light guide section is arranged to be able to guide the light received by each of the light incident units to exit toward the light exit section, and the forward projection of the light exit section The shape of the noodles is striped.
  • At least one groove structure is formed on the light guide portion.
  • one of the groove structures is formed on one side of the middle area or the two side areas of the light guide portion.
  • one of the groove structures is formed with a cut-off portion for forming a light-shaped cut-off line.
  • the groove structure is respectively formed on both sides of the light guide portion.
  • a plurality of groove structures corresponding to each of the light incident portions are formed on the light guide portion.
  • the light guide portion is a plurality of light guide structures corresponding to each of the light incident portions one-to-one, and a gap is formed between adjacent side walls of the adjacent light guide structures.
  • the width of the front projection surface of the light emitting portion is not less than 5 mm and not more than 30 mm.
  • the light guide body further includes a reflective surface, and the reflective surface is arranged to reflect the light received by each of the light incident units toward the light guide portion.
  • the light incident unit is a light collecting structure in the shape of a light collecting cup.
  • each of the light incident parts is provided with a plurality of connected light incident units, and the light incident units are protrusions protruding toward the light incident side.
  • the light-emitting portion is a smooth curved surface, and the arrangement direction of each light-incident portion is consistent with the length extension direction of the light-emitting portion.
  • the light emitting portion is formed by sequentially connecting a plurality of convex curved surfaces.
  • a second aspect of the present invention provides a vehicle lamp module, which includes the optical element described in any one of the technical solutions of the first aspect and a plurality of individually addressable light sources corresponding to each of the light incident units.
  • the light source is located on the circuit board connected to the heat sink, and the light guide is provided with a connection structure connected to the circuit board.
  • a third aspect of the present invention provides a vehicle lamp, including the vehicle lamp module according to any one of the technical solutions of the second aspect.
  • a fourth aspect of the present invention provides a vehicle, including the vehicle lamp described in the technical solution of the third aspect.
  • the shape of the front projection surface of the light-emitting part of the light guide body is strip-shaped, which is dispersedly arranged compared with the prior art vehicle lighting unit, which can achieve a narrow and long appearance and can improve positioning and installation Accuracy, with better lighting effects; moreover, it occupies a relatively small space and can have better space utilization.
  • a groove structure is formed on the light guide portion, and the groove structure adds two refractive surfaces, so that light can pass through these two refractive surfaces in sequence during the propagation process in the light guide portion.
  • the sidewalls of the groove structure The tilt angle can be set to increase the light distribution parameters and make the light distribution more flexible.
  • Fig. 1 is a structural schematic diagram 1 of an optical element in the first embodiment of the present invention
  • Fig. 2 is a second structural diagram of the optical element in the first embodiment of the present invention.
  • Figure 3 is a partial enlarged view of part A in Figure 2;
  • FIG. 4 is a third structural diagram of the optical element in the first embodiment of the present invention.
  • Figure 5 is a cross-sectional view along line B-B in Figure 4.
  • Fig. 6 is a fourth structural diagram of the optical element in the first embodiment of the present invention.
  • Figure 7 is a cross-sectional view along line C-C in Figure 6;
  • FIG. 8 is a structural schematic diagram 1 of the optical element in the second embodiment of the present invention.
  • Fig. 9 is a second structural diagram of an optical element in the second embodiment of the present invention.
  • Figure 10 is a cross-sectional view along the line D-D in Figure 9;
  • FIG. 11 is a third structural diagram of the optical element in the second embodiment of the present invention.
  • Figure 12 is a cross-sectional view taken along line E-E in Figure 11;
  • FIG. 13 is a schematic structural diagram of an optical element in a third embodiment of the present invention.
  • 15 is a second structural diagram of the optical element in the fourth embodiment of the present invention.
  • FIG. 16 is a schematic diagram of the structure of the optical element in the fifth embodiment of the present invention.
  • Fig. 17 is a structural schematic diagram 1 of an optical element in a sixth embodiment of the present invention.
  • Figure 19 is a cross-sectional view taken along line F-F in Figure 18;
  • 21 is a second structural diagram of the optical element in the seventh embodiment of the present invention.
  • Figure 22 is a cross-sectional view along the G-G line in Figure 21;
  • FIG. 23 is the third structural diagram of the optical element in the seventh embodiment of the present invention.
  • Figure 24 is a cross-sectional view taken along line H-H in Figure 23;
  • 25 is a schematic diagram of the structure of the optical element in the eighth embodiment of the present invention.
  • FIG. 26 is a schematic structural diagram of an optical element in a ninth embodiment of the present invention.
  • FIG. 27 is a first structural diagram of an optical element in the tenth embodiment of the present invention.
  • FIG. 28 is a second structural diagram of an optical element in the tenth embodiment of the present invention.
  • FIG. 29 is a first structural diagram of an optical element in the eleventh embodiment of the present invention.
  • Fig. 30 is a second structural diagram of an optical element in the eleventh embodiment of the present invention.
  • FIG. 31 is the third structural diagram of the optical element in the eleventh embodiment of the present invention.
  • Figure 33 is a cross-sectional view taken along line I-I in Figure 32;
  • FIG. 34 is a fifth structural diagram of an optical element in the eleventh embodiment of the present invention.
  • Figure 35 is a cross-sectional view along line J-J in Figure 34;
  • 36 is a sixth structural diagram of the optical element in the twelfth embodiment of the present invention.
  • FIG. 37 is a seventh schematic diagram of the structure of the optical element in the twelfth embodiment of the present invention.
  • 38 is a structural schematic diagram 1 of a vehicle lamp module with optical elements in the twelfth embodiment of the present invention.
  • 39 is a second structural diagram of the vehicle lamp module with the optical element in the twelfth embodiment of the present invention.
  • 40 is the third structural diagram of the vehicle lamp module with the optical element in the twelfth embodiment of the present invention.
  • Figure 41 is a cross-sectional view along line K-K in Figure 40;
  • FIG. 43 is a schematic diagram of a low beam shape formed by an optical element in another embodiment of the present invention.
  • Fig. 44 is a schematic diagram of a high beam shape formed by an optical element in an embodiment of the present invention.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the terms “first” and “second” are limited to The “second” feature may explicitly or implicitly include one or more of the features.
  • connection should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection.
  • the connection may be an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be a communication between two elements or an interaction relationship between two elements.
  • the specific meanings of the above-mentioned terms in the present invention can be understood according to specific situations.
  • front and rear refer to the front and rear directions of the optical element along the light-emitting direction, that is, the light-emitting portion 3 is located in the front, and the light-incident portion 1 is located at the rear.
  • the term “Left and right” refers to the left and right directions of the vehicle during use, and the term “up and down” refers to the up and down directions of the vehicle during use; the terms are based on the orientation or positional relationship shown in the drawings, rather than indicating or implying
  • the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention; moreover, when the optical element is installed in a vehicle, it can be installed in a horizontal direction, a vertical direction, etc.
  • the terminology of the orientation of the optical element of the present invention should be understood in conjunction with the actual installation state.
  • the optical element of the basic embodiment of the present invention includes a light guide, and the light guide includes a light guide arranged along the length of the light guide.
  • the light is emitted toward the light emitting portion 3, and the shape of the front projection surface of the light emitting portion 3 is a bar shape.
  • the bar shape is a long and narrow rectangle, and its width direction can be very narrow.
  • the width range is 5-30mm, preferably 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, and the length can be set according to the actual light-emitting surface modeling needs. In order to present a long and narrow appearance.
  • the present invention is integrated into an integrated light guide body, which simplifies the structural design and reduces the number of vehicle lighting units and parts.
  • the positioning and installation error is improved, and the installation accuracy is improved.
  • the light enters the light unit and exits from the light exit 3 after passing through the light guide 2, which can have a better lighting effect.
  • the light-emitting portion 3 may be a smooth curved surface protruding to the light-emitting side, which can make the appearance of the vehicle lamp more beautiful; or, as shown in FIGS. 29 to 41, the light-emitting portion 3 may also be It is formed by connecting multiple convex curved surfaces in sequence to present different appearances of car lights; the arrangement direction of each light entrance part 1 is consistent with the length extension direction of the light exit part 3; moreover, the light entrance unit can have a variety of structural forms
  • the light incident unit may be a protrusion 61 protruding toward the light incident side, as shown in FIG.
  • a plurality of light incident units are connected and arranged on the corresponding light incident portion 1, or, as shown in FIG. 26 or FIG. 33
  • it can also be a solid condensing structure 62 with an outer contour in the shape of a condensing cup.
  • the rear end of the solid condensing structure 62 can preferably be provided with a cavity to improve light efficiency, or other optical devices with equivalent functions. structure.
  • Fig. 1 shows a specific embodiment of the optical element of the present invention.
  • a groove structure 4 can be formed on the light guide part 2.
  • the groove structure 4 is arranged along the length extension direction of the light exit portion 3, and two refractive surfaces are added to the light propagation path. That is, the light entering the light guide body needs to be refracted by the two refractive surfaces in turn and then be refracted by the light guide body.
  • FIG. 10 shows a positional relationship in which the side wall of the groove structure 4 is perpendicular to the bottom of the groove structure 4, of course, the side wall of the groove structure 4 can also be emitted.
  • the groove structure 4 can be selected to guide the position.
  • the middle area of the light part 2 can also be selected from one of the two sides of the light guide part 2 or other areas.
  • the groove structure 4 can correspond to one light entrance part 1 or to multiple light entrance parts 1.
  • the number of groove structures 4 can be selected according to design requirements.
  • a groove structure 4 can be provided on both sides of the light emitting portion 3 along the length extension direction.
  • the groove The structure 4 can correspond to one light entrance portion 1 or to multiple light entrance portions 1; or, as shown in FIG. 20, more groove structures 4 can be arranged along the length of the light exit portion 3 to make each concave
  • the groove structure 4 corresponds to a light incident part 1; and, in the case that the light guide body is arranged in a certain direction, the opening direction of the groove structure 4 can be set downward as shown in FIG. 20, or set upward as shown in FIG. 25, That is to say, after the optical element of the present invention is installed in the lamp body of a vehicle, the opening direction of the groove structure 4 can be selected according to the light distribution requirements and the actual installation state, such as the arrangement state of other parts in the lamp body.
  • a groove structure 4 is provided corresponding to each light incident part 1, which can realize flexible light distribution by adding two refractive surfaces, and can also prevent adjacent light incidents.
  • the light rays between the parts 1 cross each other.
  • a plurality of gaps 22 extending along the light emitting direction may be opened on the light guide body, that is, the light guide part may be 2 Divide into a plurality of light guide structures 21 so that each light guide structure 21 corresponds to each light entrance portion 1 one-to-one.
  • the above-mentioned gap 22 is formed between adjacent side walls of adjacent light guide structures 21.
  • the two adjacent light-receiving parts 1 Take section 1 as an example. The light incident from one light incident section 1 will enter the area corresponding to its adjacent light incident section 1. When the area corresponding to the adjacent light incident section 1 is a dark area, these incident light rays will be It becomes stray light and affects the lighting effect.
  • the light guide can also be bent to form a reflective surface 5, so that the reflective surface 5 can reflect the light received by each light incident unit, and reflect this part of the light to the light guide portion 2.
  • the size of the optical element in the light emitting direction can be reduced, and the arrangement in the lamp body of the car lamp can be facilitated.
  • a cut-off portion 41 that can be used to form a low-beam cutoff line can be provided on the front edge of the bottom of the groove structure 4,
  • the shape of the cut-off portion 41 matches the shape of the low-beam cut-off line, and the shape of the cut-off portion 41 is set according to different driving styles of left-hand drive or right-hand drive.
  • the shape of the groove structure 4 is a rectangular groove.
  • the opening direction of the groove structure 4 can be selected according to the actual installation state of the light guide and the light distribution requirements.
  • FIG. 13 shows a specific embodiment in which the opening of the groove structure 4 faces upward
  • FIG. 14 shows Another specific embodiment in which the opening of the groove structure 4 faces downwards.
  • the difference is that the light in FIG. 14 always propagates in the light guide, and part of the light path of the light in FIG. 13 is in the air.
  • Both can achieve the required low-beam light shape through the light distribution design.
  • the light received by several light incident parts 1 corresponding to the cut-off part 41 is cut off by the cut-off part 41 and is emitted from the light-emitting part 3 of the light guide to form a low-beam light shape with a low-beam cut-off line. It can be used to form auxiliary low-beam light shape or high-beam light shape.
  • Different light shapes can be realized by adjusting a variety of light distribution parameters.
  • the light distribution parameters include the relative position of the light source and the optical surfaces of the light guide and the optical surfaces of each optical surface. Design parameters, etc.
  • each light incident portion 1 of the optical element is correspondingly provided with a light incident unit, and the light incident unit is a condensing cup.
  • Shaped light concentrating structure 62, the light emitting part 3 is formed by successively connecting a plurality of convex curved surfaces, and the convex curved surfaces correspond to the light incident unit one by one.
  • the groove structure 4 at the bottom of the light guide part 2 is a V-shaped pointed groove Structure, the top of the pointed groove structure is provided with a cut-off portion 41 that can be used to form a low-beam cut-off line.
  • the light received by several light-incident portions 1 corresponding to the cut-off portion 41 enters the light guide portion 2 and is cut off by the cut-off portion 41.
  • the light emitting part 3 of the light body emits a low beam shape with a low beam cut-off line.
  • the remaining light input parts 1 can be used to form an auxiliary low beam shape or a high beam shape.
  • the groove structure 4 can also be used Other structural forms that can achieve equivalent functions combine with the cut-off portion 41 to realize the low-beam shape; in addition, the cut-off portion 41 of the groove structure 4 can also be used to form a high-beam cut-off line as needed, because the low-beam cut-off line is The light rays hitting below the cutoff portion 41 are cut off, and the effective light rays are transmitted above the cutoff portion 41, and the high beam cut-off line is to cut off the light rays hitting above the cutoff portion 41, and the effective light rays are transmitted below the cutoff portion 41.
  • the cut-off part when applied to the high beam shape, the cut-off part may not be provided.
  • the above-mentioned low-beam cut-off line and high-beam cut-off line are both light-shaped cut-off lines.
  • the light-shaped cut-off line is the light beam projected onto the light distribution screen. The boundary line where the light and shade change significantly.
  • the low beam cut-off line refers to the upper boundary line of the low beam light shape
  • the high beam cut-off line refers to the lower boundary line of the high beam light shape.
  • multiple light incident parts 1 are used to form multiple different illumination areas, and multiple different illumination areas are superimposed to form a complete vehicle light shape.
  • Multiple light incident parts 1 can be arranged at intervals or connected as a whole
  • the main low-beam illumination area a with a low beam cut-off line can also form a first auxiliary low-beam illumination area b and a second auxiliary low-beam illumination area c, so that the main low-beam illumination area a is located in the first auxiliary low-beam illumination area b
  • the first auxiliary low-beam lighting area b forms a larger lighting area at the left, right and below the main low-beam lighting area a, so that the first auxiliary low-beam lighting area b is located in the second auxiliary low-beam lighting area c, and
  • the auxiliary low-beam lighting area c forms a larger lighting area on the left, right and below the first auxiliary low-beam lighting area b, and the three are superimposed up and down to form a complete low-beam light shape; in addition, the first auxiliary low-beam lighting area b and the second
  • the light source corresponding to the second auxiliary low-beam illumination area c can be an individually addressable light source, and the size of the low-beam illumination range can be controlled by turning on and off the light source, where individually addressable means that the on and off of each light source can be individually controlled ;
  • Figure 43 shows an example of forming a low beam shape with five light incident parts 1 as an example.
  • the five light incident parts 1 correspond to five illumination areas, and the illumination area in the middle has low beam
  • the low-beam illumination area of the cut-off line, and the other four illumination areas are located on the left and right sides of the middle illumination area to form a wide and wide-range low-beam shape.
  • the light sources corresponding to the five light incident parts 1 can also be Individually addressable light sources to control the range of low-beam illumination; for example, Figure 44 shows an example of forming a high-beam light shape with five light-incident parts 1 as an example, and five light-incident parts 1 correspond to five Two lighting areas, superimposed in the left and right directions, can realize the ADB (adaptive high beam) function of the car lights, that is, when there are pedestrians or vehicles in the opposite lane, the light source of the corresponding area is turned off to avoid causing the opposite lane The pedestrians or vehicles are dazzling.
  • ADB adaptive high beam
  • the optical element of the preferred embodiment of the present invention includes a light guide body, the light guide body is an integral transparent piece, the light guide body includes a plurality of light entrance parts 1, light guide parts 2 and light exit parts 3. Each light entrance part 1 is arranged in sequence along the length extension direction of the light exit part 3.
  • the light exit part 3 is a smooth curved surface protruding to the light exit side or is formed by successively connecting a plurality of convex curved surfaces.
  • At least one light incident unit is provided on the light incident portion 1, and the light received by each light incident unit can be emitted to the light output portion 3 through the light guide portion 2; at least one groove structure 4 is formed on the light guide portion 2 to make
  • the light distribution is more flexible, and a cut-off portion 41 can be formed on the bottom front edge of one of the rectangular groove-shaped groove structures 4 or the top of the V-shaped groove structure 4, and the cut-off portion 41 can be used to form a low-beam cut-off line ,
  • the light received by several light incident parts 1 corresponding to the cut-off part 41 is cut off by the cut-off part 41 and then emitted from the light-emitting part 3 of the light guide to form a low-beam light shape with a low-beam cut-off line.
  • the remaining light-in parts 1 can be used To form an auxiliary low-beam shape or a high-beam shape to realize different lighting modes of car lights; the light guide can also be bent to form a reflective surface 5, so that the reflective surface 5 can reflect the light received by each light input unit , And reflect this part of the light into the light guiding portion 2, which can reduce the size of the optical element in the light emitting direction and facilitate the arrangement in the car lamp; the light incident unit may be a protrusion 61 protruding toward the light incident side, each of which enters
  • the plurality of protrusions 61 corresponding to the light portion 1 are connected in sequence, and may also be a light-concentrating structure 62 in the shape of a light-concentrating cup. A cavity is provided at the rear end of the light-concentrating structure 62 to improve light efficiency.
  • the light guide is an integral transparent piece, which can be made of transparent materials such as glass, PC, PMMA, or silica gel.
  • the light guide body as an integral structure and the shape of the forward projection surface of the light emitting portion 3 is a narrow and long strip, the structure is simplified, the appearance is beautiful, the optical system is high in precision, the lighting effect is good, and the space is less occupied.
  • the vehicle lamp module of the present invention includes the optical element according to any one of the above-mentioned technical solutions of the first aspect and a plurality of individually addressable light sources corresponding to each light incident unit;
  • the optical parts of the car lamp module only include a light source and an integrated light guide, no other optical parts are involved, and it also has high optical system accuracy, good lighting effect, less space, and higher space utilization. Facilitate the layout design in the car lights.
  • the light source is arranged on the circuit board 7, the circuit board 7 is connected to the heat sink 8, and the light guide body can be provided with a connecting structure 9 so that the light guide body is connected to the circuit board 7 through the connecting structure 9 to determine each light incident unit The relative position between the corresponding light sources.
  • the vehicle light of the present invention may have the vehicle light module described in any of the above embodiments, that is, all the technical solutions of all the vehicle light module embodiments described above are adopted, and therefore at least have the technical solutions of the vehicle light module embodiment above All the beneficial effects brought about.
  • optical element of the present invention is not limited to being applied to functional modes such as low beam and high beam, but can also be applied to other functional modes of car lights, such as ADB (adaptive high beam), Matrix (matrix mode), corner light, Bending (turning mode) and AWL (all-weather light) and other functional modes.
  • ADB adaptive high beam
  • Matrix matrix mode
  • corner light Corner light
  • Bending turning mode
  • AWL all-weather light
  • the vehicle of the present invention may have the vehicle lamp described in any of the above-mentioned embodiments, that is, adopt all the technical solutions of all the above-mentioned vehicle lamp embodiments, and therefore at least have all the beneficial effects brought by the technical solutions of the above-mentioned vehicle lamp embodiments .

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Abstract

光学元件，其包括导光体，该导光体包括沿该导光体的长度延伸方向排布的多个入光部(1)、导光部(2)和出光部(3)。该入光部(1)上设置有至少一个入光单元，导光部(2)被布置成能够引导各入光单元接收的光朝向出光部(3)出射。出光部(3)的正向投影面形状呈条形。该光学元件能够减小占用空间，提高空间利用率，且有利于降低定位安装误差，具有窄长形的外观造型，能够用于车灯模组、车灯及车辆中。

Description

光学元件、车灯模组、车灯及车辆
相关申请的交叉引用
本申请要求2019年12月20日提交的中国专利申请201922342997.X的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及车辆照明技术，具体地，涉及一种光学元件，此外，还涉及一种车灯模组、车灯及车辆。
背景技术
随着汽车工业的飞速发展和人们生活条件的不断改善，汽车已经成为人们出行不可或缺的交通工具之一。汽车保有量逐年增加，汽车的普及给汽车零部件的制造和设计带来了发展，例如，人们对车灯要求越来越高，汽车车灯的作用已经不仅仅局限于功能照明，外观效果开始被消费者追求。
目前，车灯的造型越来越多样，导致车辆照明装置的种类也越来越多样化，其中一种车辆照明装置包括多个分散设置的车辆照明单元，各车辆照明单元分散设置且相互独立，有各自对应的入光部和出光部，可以产生多个照明区域。
但是，多个车辆照明单元分散独立设置，一方面，导致整个车辆照明装置所占用空间很大，增大了车灯的体积；另一方面，多个分散设置的出光面，满足不了客户对车灯出光面的外观需求；第三方面，多个车辆照明单元之间以及每个车辆照明单元的各零部件之间的定位安装误差较大，影响光学系统精度。
因此，需要设计一种新的光学元件，以克服或缓解现有技术的上述缺陷。
发明内容
本发明第一方面所要解决的技术问题是提供一种光学元件，该光学元件能够减小占用空间，提高空间利用率，而且，有利于降低定位安装误差，且具有窄长形的外观造型。
本发明第二方面所要解决的技术问题是提供一种车灯模组，该车灯模组具有较高的光学系统精度，照明效果较好，且具有窄长形的外观造型。
本发明第三方面所要解决的技术问题是提供一种车灯，该车灯的照明效果较好，且具有窄长形的外观造型。
本发明第四方面所要解决的技术问题是提供一种车辆，该车辆具有较好的空间利用率，便于结构设计。
为了实现上述目的，本发明第一方面提供一种光学元件，包括导光体，所述导光体包括沿该导光体的长度延伸方向排布的多个入光部、导光部和出光部，所述入光部上设置有至少一个入光单元，所述导光部被布置成能够引导各所述入光单元接收的光朝向所述出光部出射，所述出光部的正向投影面形状呈条形。
优选地，所述导光部上形成有至少一个凹槽结构。
更优选地，所述导光部的中间区域或者两侧区域中一侧形成有一个所述凹 槽结构。
进一步地，其中一个所述凹槽结构形成有用于形成光形截止线的截止部。
优选地，所述导光部的两侧区域分别形成有所述凹槽结构。
进一步地，所述导光部上形成有与各所述入光部一一对应的多个所述凹槽结构。
优选地，所述导光部分为与各所述入光部一一对应的多个导光结构，相邻所述导光结构的相邻侧壁之间形成有间隙。
可选地，所述出光部的正向投影面的宽度不小于5mm且不大于30mm。
更优选地，所述导光体还包括反射面，所述反射面被布置成将各所述入光单元接收的光反射向所述导光部。
具体地，所述入光单元为呈聚光杯形状的聚光结构。
具体地，各所述入光部上设置有相连的多个所述入光单元，所述入光单元为朝向入光一侧凸出的凸起。
优选地，所述出光部为光滑曲面，各所述入光部的排布方向与所述出光部的长度延伸方向一致。
优选地，所述出光部由多个外凸曲面依次连接形成。
本发明第二方面提供一种车灯模组，包括第一方面技术方案中任一项所述的光学元件以及与各所述入光单元对应的多个可单独寻址的光源。
典型地，还包括电路板与散热器，所述光源位于与所述散热器连接的所述电路板上，所述导光体上设置有与所述电路板连接的连接结构。
本发明第三方面提供一种车灯，包括第二方面技术方案中任一项所述的车灯模组。
本发明第四方面提供一种车辆，包括第三方面技术方案所述的车灯。
通过上述技术方案，本发明的有益效果如下：
在本发明的基础技术方案中，导光体出光部的正向投影面形状呈条形，相对于现有技术的车辆照明单元分散布置，可实现窄长形的外观造型效果，能够提高定位安装精度，具有较好的照明效果；而且，占用空间相对较小，能够具有较好的空间利用率。
而且，导光部上形成有凹槽结构，凹槽结构增加了两个折射面，可以使光线在导光部内传播过程中依次经过这两个折射面，根据设计需要，凹槽结构的侧壁的倾斜角度可以设置，从而增加配光参数，使配光更加灵活。
本发明的其它特征和更加突出优点将在随后的具体实施方式部分予以详细说明。
附图说明
图1是本发明第一种实施方式中的光学元件的结构示意图一；
图2是本发明第一种实施方式中的光学元件的结构示意图二；
图3是图2中A部分的局部放大图；
图4是本发明第一种实施方式中的光学元件的结构示意图三；
图5是图4中沿B-B线的剖面图；
图6是本发明第一种实施方式中的光学元件的结构示意图四；
图7是图6中沿C-C线的剖面图；
图8是本发明第二种实施方式中的光学元件的结构示意图一；
图9是本发明第二种实施方式中的光学元件的结构示意图二；
图10是图9中沿D-D线的剖面图；
图11是本发明第二种实施方式中的光学元件的结构示意图三；
图12是图11中沿E-E线的剖面图；
图13是本发明第三种实施方式中的光学元件的结构示意图；
图14是本发明第四种实施方式中的光学元件的结构示意图一；
图15是本发明第四种实施方式中的光学元件的结构示意图二；
图16是本发明第五种实施方式中的光学元件的结构示意图；
图17是本发明第六种实施方式中的光学元件的结构示意图一；
图18是本发明第六种实施方式中的光学元件的结构示意图二；
图19是图18中沿F-F线的剖面图；
图20是本发明第七种实施方式中的光学元件的结构示意图一；
图21是本发明第七种实施方式中的光学元件的结构示意图二；
图22是图21中沿G-G线的剖面图；
图23是本发明第七种实施方式中的光学元件的结构示意图三；
图24是图23中沿H-H线的剖面图；
图25是本发明第八种实施方式中的光学元件的结构示意图；
图26是本发明第九种实施方式中的光学元件的结构示意图；
图27是本发明第十种实施方式中的光学元件的结构示意图一；
图28是本发明第十种实施方式中的光学元件的结构示意图二；
图29是本发明第十一种实施方式中的光学元件的结构示意图一；
图30是本发明第十一种实施方式中的光学元件的结构示意图二；
图31是本发明第十一种实施方式中的光学元件的结构示意图三；
图32是本发明第十一种实施方式中的光学元件的结构示意图四；
图33是图32中沿I-I线的剖面图；
图34是本发明第十一种实施方式中的光学元件的结构示意图五；
图35是图34中沿J-J线的剖面图；
图36是本发明第十二种实施方式中的光学元件的结构示意图六；
图37是本发明第十二种实施方式中的光学元件的结构示意图七；
图38是本发明具有第十二种实施方式中的光学元件的车灯模组的结构示意图一；
图39是本发明具有第十二种实施方式中的光学元件的车灯模组的结构示意图二；
图40是本发明具有第十二种实施方式中的光学元件的车灯模组的结构示意图三；
图41是图40中沿K-K线的剖面图；
图42是本发明一种实施方式中的光学元件形成的近光光形的示意图；
图43是本发明另一种实施方式中的光学元件形成的近光光形的示意图；
图44是本发明一种实施方式中的光学元件形成的远光光形的示意图。
附图标记说明
1入光部                           2导光部
21导光结构                        22间隙
3出光部                           4凹槽结构
41截止部                          5反射面
61凸起                            62聚光结构
7电路板                           8散热器
9连接结构                         a主近光照明区域
b第一辅助近光照明区域             c第二辅助近光照明区域
具体实施方式
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，并不用于限制本发明。
此外，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”、“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。
需要理解的是，为了便于描述本发明和简化描述，术语“前、后”是指光学元件沿出光方向的前后方向，即出光部3位于前方，相对地，入光部1位于后方，术语“左、右”是指车辆在使用过程中的左右方向，术语“上、下”是指车辆在使用过程中的上下方向；术语为基于附图所示的方位或位置关系，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发明的限制；而且，将光学元件安装于车辆内时，可以按照水平方向、竖直方向等各种方位进行安装，对于本发明的光学元件的方位术语，应当结合实际安装状态进行理解。
如图1至图7、图26、图29至图35所示，本发明基本实施方式的光学元件，包括导光体，所述导光体包括沿该导光体的长度延伸方向排布的多个入光部1、导光部2和出光部3，所述入光部1上设置有至少一个入光单元，所述导光部2被布置成能够引导各所述入光单元接收的光朝向所述出光部3出射，所述出光部3的正向投影面形状呈条形。
其中，条形为窄长矩形，其宽度方向可以做到很窄，宽度范围为5～30mm，优选5mm、10mm、15mm、20mm、25mm、30mm，长度可根据实际出光面造型需要来设定，以呈现窄长形的外观效果。
在上述基本实施方式中，相对于现有技术中车辆照明单元分散布置的形式，本发明集成为一体结构的导光体，简化了结构设计，还减少了车辆照明单元之间以及零部件之间的定位安装误差，提升安装精度，光线从入光单元射入，经过导光部2后，从出光部3出射，能够具有较好的照明效果，而且，将出光部3的正向投影面形状设置为条形，根据车灯灯体内的空间，可沿左右方向、上下方向或斜向放置导光体，充分利用空间且占用空间相对较小，同时还能呈现窄长形的特有外观效果。
其中，如图1所示，出光部3可以是向出光一侧凸出的光滑曲面，该光滑曲面可使车灯外观更加美观；或者，如图29至图41所示，出光部3也可以是由多个外凸曲面依次连接形成，以呈现不同的车灯外观造型；各入光部1的排布方向与出光部3的长度延伸方向一致；而且，入光单元可以具有多种结构形式，例 如，入光单元可以为朝向入光一侧凸出的凸起61，如图3所示的多个入光单元依次相连设置于对应的入光部1上，或者，如图26或图33所示，也可以为外部轮廓呈聚光杯形状的实体的聚光结构62，该实体的聚光结构62的后端可优选开设凹腔以提高光效，或者，其它能够具有等同功能的光学结构。
图1示出了本发明的光学元件的一种具体实施方式，进一步地，如图8至图12所示的另一种具体实施方式，可以在导光部2上形成凹槽结构4，凹槽结构4沿着出光部3的长度延伸方向布置，在光的传播光路上增加了两个折射面，即进入导光体的光线需依次经这两个折射面折射后再由导光体的出光部3射出；对于凹槽结构4本身来讲，图10示出了凹槽结构4的侧壁垂直于凹槽结构4底部的一种位置关系，当然，凹槽结构4的侧壁也可以相对于凹槽结构4底部非垂直设置，如此，由于增加了两个折射面，使得配光方式增加，即使得配光参数增加，配光更加灵活；其中，凹槽结构4设置位置可以选择导光部2的中间区域，也可以选择导光部2的两侧区域中一侧，或者其它区域，凹槽结构4可以对应一个入光部1或对应多个入光部1。
此外，凹槽结构4的数量可以根据设计需要进行选择，例如，如图16所示，可以在沿出光部3的长度延伸方向的两侧区域分别设置一个凹槽结构4，同样地，凹槽结构4可以对应一个入光部1或对应多个入光部1；又或者，如图20所示，可以在沿出光部3的长度延伸方向设置更多的凹槽结构4，使每个凹槽结构4对应一个入光部1；而且，在导光体布置方位确定的情况下，凹槽结构4的开口方向可以如图20所示向下设置，也可以如图25所示向上设置，也就是说，在将本发明的光学元件安装于车灯灯体中后，凹槽结构4的开口方向可以根据配光需求和实际安装状态例如灯体内其它部件的布置状态进行选择。
上述如图20和图25所示的具体实施方式中，对应每一个入光部1设置一个凹槽结构4，在实现增加两个折射面可以灵活配光的同时，还可以防止相邻入光部1之间的光线相互之间发生窜光。
作为防止窜光的另一种实现方式，如图17至图19所示的具体实施方式，可以在导光体上开设多条沿出光方向延伸的间隙22，也就是说，可以将导光部2分成多个导光结构21，使各个导光结构21与各入光部1一一对应，相邻导光结构21的相邻侧壁之间形成上述间隙22，通过间隙22防止由相邻的两个入光部1入射的光线相互之间发生窜光；例如，在需要关闭部分光源形成暗区时，若相邻导光结构21之间没有间隙22，以相邻的两个入光部1为例，一个入光部1入射的光线会射至其相邻入光部1所对应的区域内，当该相邻入光部1对应的区域为暗区时，这些射入光线会成为杂散光，影响照明效果。
此外，如图27与图28所示，还可以使导光体呈弯折状以形成反射面5，使反射面5能够反射各入光单元接收的光线，并将该部分光线反射向导光部2，如此，可以减小光学元件在出光方向上的尺寸，方便在车灯灯体内的布置。
当上述光学元件应用于形成近光光形时，作为一种具体实施方式，如图13所示，可以在凹槽结构4的底部前边缘设置能够用于形成近光截止线的截止部41，截止部41的形状与近光截止线的形状相匹配，并根据左驾或右驾的不同驾驶方式来设置截止部41的形状，相适应地，凹槽结构4的形状为矩形凹槽。同样地，凹槽结构4的开口方向可以根据导光体的实际安装状态和配光需求进行选择，图13示出了凹槽结构4的开口向上的一种具体实施方式，图14示出了凹槽结构4的开口向下的另一种具体实施方式，同等情况下，不同在于，图14中的光线一直在导光体内传播，图13中的光线的光路有一部分位于空气中，两者都 可以通过配光设计来实现符合要求的近光光形。其中，截止部41对应的几个入光部1接收的光线经该截止部41截止后由导光体的出光部3射出形成具有近光截止线的近光光形，其余入光部1则可用于形成辅助近光光形或远光光形，可通过调整多种配光参数来实现不同的光形，配光参数包括光源与导光体的各光学面的相对位置以及各光学面的设计参数等。
作为实现近光光形的另一种具体实施方式，如图36、图37所示，该光学元件的各入光部1上对应设置有一个入光单元，该入光单元为呈聚光杯形状的聚光结构62，出光部3由多个外凸曲面依次连接形成，外凸曲面与入光单元一一对应，位于导光部2的底部的凹槽结构4为呈V形的尖槽结构，尖槽结构的顶部设置有能够用于形成近光截止线的截止部41，截止部41对应的几个入光部1接收的光线进入导光部2经该截止部41截止后由导光体的出光部3射出形成具有近光截止线的近光光形，同样，其余入光部1则可用于形成辅助近光光形或远光光形。
以上通过两种不同结构形式的凹槽结构4与截止部41的设置，对将本发明的光学元件应用于形成近光光形的具体实施方式进行了说明，显然，凹槽结构4也可以采用其它能够实现等同功能的结构形式结合截止部41来实现近光光形；此外，凹槽结构4的截止部41也可根据需要用于形成远光截止线，这是因为，近光截止线是将射至截止部41下方的光线截掉，有效光线在截止部41上方传输，而远光截止线是将射至截止部41上方的光线截掉，有效光线在截止部41下方传输。当然，在应用于远光光形时，也可以不设置截止部。其中，上述近光截止线和远光截止线均为光形截止线，根据《GB 4599-2007——汽车用灯丝灯泡前照灯》定义：光形截止线为光束投射到配光屏幕上，目视感觉到的明暗显著变化的分界线。近光截止线则指近光光形的上分界线，远光截止线则指远光光形的下分界线。
需要说明的是，多个入光部1用于形成多个不同照明区域，多个不同照明区域叠加后形成完整的车灯光形，多个入光部1可以间隔排布，也可以连为一体；例如，如图42所示，在安装本发明的光学元件时，通过设置各光源与其对应的导光体的各光学面的相对位置以及各光学面的设计参数，可以通过凹槽结构4形成具有近光截止线的主近光照明区域a，还可以形成第一辅助近光照明区域b与第二辅助近光照明区域c，使主近光照明区域a位于第一辅助近光照明区域b内，第一辅助近光照明区域b在主近光照明区域a的左右及下方形成更大的照明区域，使第一辅助近光照明区域b位于第二辅助近光照明区域c内，第二辅助近光照明区域c在第一辅助近光照明区域b的左右及下方形成更大的照明区域，三者上下叠加形成完整的近光光形；此外，第一辅助近光照明区域b与第二辅助近光照明区域c对应的光源可以为可单独寻址的光源，通过光源的亮灭来控制近光照明范围的大小，其中，可单独寻址是指各光源的亮灭能够被单独控制；又如，图43以五个入光部1为例对一种形成近光光形的示例进行了显示，五个入光部1对应五个照明区域，位于中间的照明区域为具有近光截止线的近光照明区域，其他四个照明区域分别位于中间照明区域的左右两侧，以形成较宽展宽范围的近光光形，同样地，五个入光部1对应的光源也可以为可单独寻址的光源，以控制近光照明范围；再如，图44以五个入光部1为例对一种形成远光光形的示例进行了显示，五个入光部1对应五个照明区域，沿左右方向依次叠加，可以实现车灯ADB(自适应远光灯)功能，即在对向车道有行人或车辆时，关闭其所对应的区域的光源，以避免导致对向车道的行人或车辆炫目。
参照图1至图37所示，本发明优选实施方式的光学元件，包括导光体，导 光体为一体的透明件，导光体包括多个入光部1、导光部2和出光部3，各入光部1沿出光部3的长度延伸方向依次排布，出光部3为向出光一侧凸出的光滑曲面或由多个外凸曲面依次连接形成，其正向投影面形状呈条形，入光部1上设置有至少一个入光单元，各入光单元接收的光线能够通过导光部2射向出光部3；导光部2上形成有至少一个凹槽结构4，使配光更加灵活，可以在其中一个呈矩形凹槽形状的凹槽结构4的底部前边缘或者成V形的凹槽结构4的顶部形成截止部41，截止部41能够用于形成近光截止线，截止部41对应的几个入光部1接收的光线经该截止部41截止后由导光体的出光部3射出形成具有近光截止线的近光光形，其余入光部1则可用于形成辅助近光光形或远光光形，实现不同的车灯照明模式；还可以使导光体呈弯折状以形成反射面5，使反射面5能够反射各入光单元接收的光线，并将该部分光线反射向导光部2，可以减小光学元件在出光方向上的尺寸，便于在车灯内的布置；入光单元可以为朝向入光一侧凸出的凸起61，各入光部1对应的多个凸起61依次相连，也可以为呈聚光杯形状的聚光结构62，聚光结构62后端开设凹腔以提高光效。其中，导光体为一体的透明件，可以由玻璃、PC、PMMA或硅胶等透明材质制备。
由上可知，通过将导光体设置为一体结构且出光部3的正向投影面形状呈窄长条形，简化了结构，造型美观，光学系统精度高，照明效果好，占用空间较少。
如图38至图41所示，本发明的车灯模组，包括上述第一方面技术方案中任一项所述的光学元件以及与各入光单元对应的多个可单独寻址的光源；该车灯模组的光学零件只包括光源和一个一体结构的导光体，不涉及其他光学零件，也具有较高的光学系统精度，照明效果好，占用空间较少，空间利用率较高，便于在车灯内的布置设计。
通常地，光源设置在电路板7上，电路板7与散热器8连接，导光体上可以设置连接结构9，使导光体通过连接结构9与电路板7连接，以确定各入光单元与对应的各光源之间的相对位置。
本发明的车灯，可以具有上述任一实施例所述的车灯模组，即采用了上述所有车灯模组实施例的全部技术方案，因此至少具有上述车灯模组实施例的技术方案所带来的所有有益效果。
此外，本发明的光学元件不限于应用于近光与远光等功能模式，也可以应用于车灯的其它功能模式，如ADB(自适应远光灯)、Matrix(矩阵模式)、角灯、Bending(转弯模式)和AWL(全天候灯)等功能模式。
本发明的车辆，可以具有上述任一实施例所述的车灯，即采用了上述所有车灯实施例的全部技术方案，因此至少具有上述车灯实施例的技术方案所带来的所有有益效果。
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 (14)

  1. 一种光学元件，其特征在于，包括导光体，所述导光体包括沿该导光体的长度延伸方向排布的多个入光部(1)、导光部(2)和出光部(3)，所述入光部(1)上设置有至少一个入光单元，所述导光部(2)被布置成能够引导各所述入光单元接收的光朝向所述出光部(3)出射，所述出光部(3)的正向投影面形状呈条形；所述导光部(2)上形成有至少一个凹槽结构(4)，其中一个所述凹槽结构(4)形成有用于形成光形截止线的截止部(41)。
  2. 根据权利要求1所述的光学元件，其特征在于，所述导光部(2)的中间区域或者两侧区域中一侧形成有一个所述凹槽结构(4)。
  3. 根据权利要求1所述的光学元件，其特征在于，所述导光部(2)的两侧区域分别形成有所述凹槽结构(4)。
  4. 根据权利要求1所述的光学元件，其特征在于，所述导光部(2)上形成有与各所述入光部(1)一一对应的多个所述凹槽结构(4)。
  5. 根据权利要求1至4中任一项所述的光学元件，其特征在于，所述出光部(3)的正向投影面的宽度不小于5mm且不大于30mm。
  6. 根据权利要求1至4中任一项所述的光学元件，其特征在于，所述导光体还包括反射面(5)，所述反射面(5)被布置成将各所述入光单元接收的光反射向所述导光部(2)。
  7. 根据权利要求1至4中任一项所述的光学元件，其特征在于，所述入光单元为呈聚光杯形状的聚光结构(62)。
  8. 根据权利要求1至4中任一项所述的光学元件，其特征在于，各所述入光部(1)上设置有相连的多个所述入光单元，所述入光单元为朝向入光一侧凸出的凸起(61)。
  9. 根据权利要求1至4中任一项所述的光学元件，其特征在于，所述出光部(3)为光滑曲面，各所述入光部(1)的排布方向与所述出光部(3)的长度延伸方向一致。
  10. 根据权利要求1至4中任一项所述的光学元件，其特征在于，所述出光部(3)由多个外凸曲面依次连接形成。
  11. 一种车灯模组，其特征在于，包括根据权利要求1至10中任一项所述的光学元件以及与各所述入光单元对应的多个可单独寻址的光源。
  12. 根据权利要求11所述的车灯模组，其特征在于，还包括电路板(7)与散热器(8)，所述光源位于与所述散热器(8)连接的所述电路板(7)上， 所述导光体上设置有与所述电路板(7)连接的连接结构(9)。
  13. 一种车灯，其特征在于，包括根据权利要求11或12中任一项所述的车灯模组。
  14. 一种车辆，其特征在于，包括根据权利要求13所述的车灯。
PCT/CN2020/135363 2019-12-20 2020-12-10 光学元件、车灯模组、车灯及车辆 WO2021121131A1 (zh)

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MX2022000226A MX2022000226A (es) 2019-12-20 2020-12-10 Elemento optico, modulo de faro de vehiculo, faro de vehiculo y vehiculo.
EP20903488.3A EP3988836B1 (en) 2019-12-20 2020-12-10 Optical element, vehicle lamp module, vehicle lamp, and vehicle
KR1020227001905A KR102695115B1 (ko) 2019-12-20 2020-12-10 광학 소자, 차량용 램프 모듈, 차량용 램프 및 차량
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EP3988836A4 (en) 2022-10-05
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