WO2022110570A1 - 远光光学元件、远光照明单元和车辆 - Google Patents

远光光学元件、远光照明单元和车辆 Download PDF

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Publication number
WO2022110570A1
WO2022110570A1 PCT/CN2021/080516 CN2021080516W WO2022110570A1 WO 2022110570 A1 WO2022110570 A1 WO 2022110570A1 CN 2021080516 W CN2021080516 W CN 2021080516W WO 2022110570 A1 WO2022110570 A1 WO 2022110570A1
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WIPO (PCT)
Prior art keywords
light
optical element
auxiliary lighting
incident
light incident
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PCT/CN2021/080516
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English (en)
French (fr)
Inventor
刘方
仇智平
张大攀
李辉
祝贺
桑文慧
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.)
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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 US18/253,141 priority Critical patent/US20230417385A1/en
Publication of WO2022110570A1 publication Critical patent/WO2022110570A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/27—Thick lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout 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
    • F21S41/50—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers
    • 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
    • F21W2104/00—Exterior vehicle lighting devices for decorative purposes

Definitions

  • the present invention relates to a vehicle lamp, in particular to a high beam optical element. Furthermore, the present invention also relates to a high beam lighting unit and a vehicle comprising the high beam optical element.
  • Multiple lighting units may be composed of one or more low beam lighting units and one or more far and near beam integrated lighting units, or may be composed of multiple far and near beam integrated lighting units, or one or more low beam lighting units.
  • the unit is composed of one or more high-beam lighting units, or it is composed of one or more integrated high-beam lighting units and one or more high-beam lighting units.
  • the above-mentioned low-beam lighting unit refers to the lighting unit that projects all or part of the light shape of the low beam
  • the above-mentioned high-beam lighting unit refers to the lighting unit that projects all or part of the light shape of the high beam
  • the above-mentioned integrated lighting unit of the far and near beams refers to both projection.
  • a new type of headlight optical element needs to be designed to solve the defect that the high-beam lighting unit cannot be lit in the low-beam lighting mode.
  • the problem to be solved by the first aspect of the present invention is to provide a high beam optical element, which can achieve a lighting effect in a low beam illumination mode and has a simple structure.
  • the problem to be solved by the second aspect of the present invention is to provide a high-beam lighting unit, which can achieve a lighting effect in a low-beam lighting mode and has a simple structure.
  • the problem to be solved by the third aspect of the present invention is to provide a vehicle, the vehicle lamp of which can realize the lighting effect of the high beam lighting unit in the low beam lighting mode.
  • a first aspect of the present invention provides a high beam optical element, which includes a light incident portion, a light guide portion and a light exit portion sequentially arranged from back to front, the light incident portion includes a high beam incident portion and a light exit portion.
  • an auxiliary lighting structure the auxiliary lighting structure can transmit the light incident to the auxiliary lighting structure to the light guide part after at least one reflection, and then transmit it to the light exit part through the light guide part, And the light emitting surface of the light emitting part is projected into the low beam III area.
  • the auxiliary lighting structure includes an auxiliary lighting incident surface, a first reflecting surface and a second reflecting surface, and a rear end surface of the auxiliary lighting structure is formed as the auxiliary lighting incident surface,
  • the first reflective surface can reflect the light received by the auxiliary lighting incident surface to the second reflective surface, and the second reflective surface can reflect the first reflective surface to the second reflective surface The light is reflected to the light guide part.
  • the auxiliary lighting structure is located below the high beam incident portion, and the first reflecting surface is located below the second reflecting surface.
  • the auxiliary lighting light incident surface includes a vertical light incident surface and an oblique light incident surface, and the oblique light incident surface is arranged to be inclined forward and downward from the bottom end of the vertical light incident surface. extend.
  • the longitudinal section of the first reflection surface is set as a forward convex curve
  • the transverse line is set as a backward concave curve
  • the longitudinal section and transverse section of the second reflection surface are respectively set Curves that bulge backwards.
  • a light diffusing structure is provided on the second reflecting surface.
  • an opaque casing is provided or integrally formed on the outer surface of the light guide portion.
  • the high-beam light incident portion includes at least one light incident structure, the rear end surface of each light incident structure is respectively set as a backward convex curved surface or a tapered surface, and the light incident structures are arranged in a matrix. ;
  • the light emitting surface of the light emitting part is set as a front convex surface formed by splicing several planes or curved surfaces distributed in a grid shape.
  • a second aspect of the present invention provides a high-beam lighting unit, comprising the high-beam optical element described in any one of the above, a circuit board, a high-beam light source corresponding to the high-beam incident portion, and a high-beam light source corresponding to the auxiliary lighting
  • the auxiliary lighting light source is arranged correspondingly to the structure, and the high beam light source and the auxiliary lighting light source are arranged on the circuit board.
  • a third aspect of the present invention provides a vehicle including the above-mentioned high beam lighting unit.
  • the high-beam optical element of the present invention is provided with an auxiliary lighting structure on one side of the high-beam light-incident part, and the light incident on the auxiliary lighting structure is transmitted to the light guide part after at least one reflection, and then passes through the light-guiding part. After the light guide part is transmitted to the light emitting part, the light emitting surface of the light emitting part is projected to the low beam III area. When a person stands in front of the headlight, this part of the light will directly enter the human eye obliquely upward, so that people can see the light.
  • the high-beam lighting unit also emits light, which can make the visual effect of lighting the light-emitting surface in the low-beam lighting mode.
  • Total reflection occurs in the light-emitting part, and the diffusely reflected light formed by the impurities in the light-emitting part is used to enter the human eye to cause the high-beam lighting unit to emit light.
  • the unit is brighter, so that the lighting brightness of the high-beam lighting unit in the present invention can be more easily unified with the brightness of the low-beam lighting unit within the regulatory range of the low-beam zone III light shape illuminance, so that the lighting effect of the appearance of the vehicle lamp is improved. better.
  • FIG. 1 is one of the structural schematic diagrams of a specific embodiment of a high beam optical element in the present invention.
  • Fig. 2 is the second structural schematic diagram of the high beam optical element shown in Fig. 1;
  • Figure 3 is a side view of the high beam optical element shown in Figure 1;
  • Fig. 4 is A-A sectional view in Fig. 3;
  • Figure 5 is a top view of the high beam optical element shown in Figure 1;
  • Fig. 6 is the B-B sectional view in Fig. 5;
  • Fig. 8 is the second structural schematic diagram of the high beam optical element shown in Fig. 7;
  • Figure 9 is a top view of the high beam optical element shown in Figure 7;
  • Figure 10 is a C-C sectional view in Figure 9;
  • Fig. 11 is a partial enlarged view of part D in Fig. 10;
  • FIG. 12 is a schematic structural diagram of a specific embodiment of a high beam lighting unit in the present invention.
  • Figure 13 is one of exploded views of the high beam lighting unit shown in Figure 12;
  • Figure 14 is the second exploded view of the high beam lighting unit shown in Figure 12;
  • Figure 15 is a top view of the high beam lighting unit shown in Figure 12;
  • Fig. 16 is the E-E sectional view in Fig. 15;
  • 17 is an optical path diagram of light incident from the auxiliary lighting structure in the present invention.
  • FIG. 18 is a light diagram (shown in a dashed frame) formed by light incident from the auxiliary lighting structure in the high beam optical element shown in FIG. 1 ;
  • FIG. 19 is a light pattern (shown by a dotted frame) formed by light incident from the auxiliary lighting structure in the high beam optical element shown in FIG. 7 .
  • orientation words such as “front”, “rear”, “left”, “right”, “Up”, “down”, etc. are the meanings that are derived by analogy with the orientation of the light transmission direction.
  • the end of the high-beam optical element that is close to the high-beam light source 6 is the rear, and the end is far away from the high-beam optical element.
  • One end of the high-beam light source 6 is the front; it can also be understood that the end where the light-incident part 1 of the high-beam optical element is located is the rear, and the end where the light-emitting part 3 is located is the front, and relative to the front-rear direction of the high-beam optical element, the far
  • the direction represented by the left and right sides of the light optical element is the left and right direction
  • the direction represented by the upper and lower sides of the high beam optical element is the up and down direction.
  • the terms “installation” and “connection” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It is an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between the two elements.
  • installation and “connection” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It is an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between the two elements.
  • the transverse line refers to a section line obtained by a cross section of a certain surface in the horizontal direction
  • the transverse line refers to a section line obtained by a longitudinal section extending in the front-rear direction of a certain surface.
  • the present invention provides a high beam optical element, see FIG. 1 to FIG. 11 , including a light incident part 1 , a light guide part 2 and a light exit part 3 arranged in sequence from back to front, and the light incident part 1 includes a high beam incident part 11 and the auxiliary lighting structure 12; the auxiliary lighting structure 12 can transmit the light incident to the auxiliary lighting structure 12 to the light guide part 2 after at least one reflection, and then transmit it to the light exit part 3 through the light guide part 2, and the light exits the light The light emitting surface of the part 3 is projected into the low beam III area.
  • the light incident part 1, the light guide part 2 and the light exit part 3 can be set independently, or can be integrally formed to ensure the relative position accuracy between the three, and the materials can be transparent plastics, silica gel and glass, etc. , Plastics are available in PMMA or PC.
  • the high beam light source 6 corresponding to the light part 11 and the auxiliary lighting light source 7 corresponding to the auxiliary lighting structure 12 are provided.
  • the working process of the high beam lighting unit is: in the low beam lighting mode, the auxiliary lighting light source 7 is turned on, the light emitted by the auxiliary lighting light source 7 is incident on the auxiliary lighting structure 12, and the auxiliary lighting structure 12 is reflected at least once.
  • the high beam lighting unit is also lit.
  • the light incident on the auxiliary lighting structure 12 is directly transmitted and projected into the low beam III area by the light guide part 2 and the light exit part 3 after being reflected, which can not only form a far
  • the visual effect of the light-emitting surface of the light illuminating unit being lit, and compared with the total reflection of light in the light-emitting part 3, the diffusely reflected light formed by the impurities in the light-emitting part 3 is injected into the human eye by the use of the total reflected light.
  • the high-beam lighting unit emits light, and the use of the high-beam optical element of the present invention makes the high-beam lighting unit visible to people brighter, so that the lighting brightness of the high-beam lighting unit in the present invention is more likely to be unified with the brightness of the low-beam lighting unit, so that the vehicle
  • the lighting effect of the appearance of the lamp is better, and the appearance of the lamp is improved; in the high-beam mode, the high-beam light source 6 is turned on, and the light emitted by the high-beam light source 6 enters from the light incident surface of the high-beam light entrance part 11. , transmitted to the light guide part 2 through the high beam light entrance part 11 , then transmitted to the light exit part 3 through the light guide part 2 , and finally exited through the light exit surface of the light exit part 3 to form high beam illumination light.
  • the auxiliary lighting structure 12 includes an auxiliary lighting incident surface 13 , a first reflecting surface 14 and a second reflecting surface 15 , and the rear end surface of the auxiliary lighting structure 12 is formed to assist the lighting entering
  • the light surface 13 the first reflecting surface 14 can reflect the light received by the auxiliary lighting incident surface 13 to the second reflecting surface 15, and the second reflecting surface 15 can reflect the first reflecting surface 14 to the second reflecting surface 15
  • the light is reflected to the light guide part 2 .
  • the arrangement of the first reflective surface 14 and the second reflective surface 15 not only enables the light received by the auxiliary lighting incident surface 13 to be efficiently transmitted to the light guide portion 2, but also enables the light to be reflected by the first reflective surface 14 and the second reflected light.
  • the reflection of the surface 15 respectively forms a certain degree of diffusion, so that the light shape projected by the light emitting surface of the light emitting part 3 is more uniform and the illuminance of the light shape is reduced.
  • the light path diagram after the auxiliary lighting light source 7 is lit is shown in FIG. 17 , and the light projected by the light emitting surface of the light emitting part 3 is projected on the light distribution screen to form the auxiliary lighting light shape shown in FIG. 18 .
  • the auxiliary lighting structure 12 can be located in any orientation of the upper, lower, left and right sides of the high beam incident portion 11 , and the structure forms of the two can be determined according to actual production and use requirements.
  • the auxiliary lighting structure 12 is located below the high beam incident portion 11, and the first reflecting surface 14 is located below the second reflecting surface 15, which is beneficial to the structural design of the high beam optical element. Reduce or avoid the impact on low beam lighting.
  • the auxiliary lighting incident surface 13 is preferably set to be flat, which has a simple structure and good manufacturability.
  • the light from the light surface 13 can be directed toward the first reflection surface 14 more, thereby improving the utilization rate of the light by the auxiliary lighting structure 12 .
  • the auxiliary lighting incident surface 13 includes a vertical light incident surface 131 and an oblique light incident surface 132 , and the oblique light incident surface 132 It is arranged to extend obliquely forward and downward from the bottom end of the vertical light incident surface 131 .
  • the auxiliary lighting incident surface 13 is a plane extending up and down, some of the light emitted from the auxiliary lighting light source 7 to the lower half of the light is reflected by the first reflecting surface 14 and directly emitted by the light exit part 3 , while Without being reflected by the second reflective surface 15, the illuminance projected by this part of the light is relatively high, which is easy to exceed the requirements of the regulations for the illuminance of the low beam III area; the oblique setting of the oblique light incident surface 132 can not only change the light incident surface The direction in which the received light is reflected by the first reflective surface 14, so that the light incident on the oblique light incident surface 132 is reflected and diffused by the second reflective surface 15 as much as possible before being projected by the light-emitting surface of the light-emitting part 3 to avoid The illuminance of the projected light is excessive, so as to form a more uniform light shape, and it can also reduce the light received by the light incident surface, and further reduce the light directly e
  • the longitudinal section of the first reflection surface 14 is set as a forward convex curve, transverse line The curve is set as a backward concave curve, and the longitudinal section line and the transverse line of the second reflection surface 15 are respectively set as a backward convex curve.
  • the setting of the cross-sectional line of the first reflective surface 14 and the cross-sectional line of the second reflective surface 15 can ensure the thickness between the two reflective surfaces and avoid the formation of an unstable structure with a thick middle and thin sides;
  • the vertical section and the vertical section of the second reflecting surface 15 are arranged so that the two reflecting surfaces cooperate to reflect the light incident from the auxiliary lighting incident surface 13 into the light guide part 2 as much as possible, and reduce the reflected light to guide the light.
  • the width of the second reflecting surface 15 reasonably, the reflected light can be just reflected into the light exit part 3, so as to ensure the luminous flux in the edge area of the light exit part 3, and also It is beneficial to its light emitting effect and the uniformity of the emitting light shape.
  • the second reflecting surface 15 is provided with a light diffusing structure.
  • the light diffusing structure can be several block-shaped protrusions, block-shaped depressions, striped protrusions, striped depressions, or other structures that can change the surface type of the second reflecting surface 15, so as to be able to change the intensity of the light incident on the second reflecting surface 15.
  • the direction of reflection makes the light reflected by the second reflective surface 15 more dispersed, reduces the illuminance of the light shape formed after being transmitted by the light guide part 2 and projected by the light exit part 3, and improves the uniformity of the light shape to meet the light in the low beam III zone. Regulatory requirements for shape illuminance.
  • an opaque casing 4 is provided or integrally formed on the outer surface of the light guide portion 2 .
  • the opaque casing 4 and the light guide part 2 can be integrally formed by two-color injection molding, or can be integrally formed by insert injection molding, or other molding methods can be used, as long as the opaque casing 4 can be formed on the edge of the light guide part 2 . Outside, all belong to the protection scope of the present invention.
  • the light entering the light guide part 2 reflected by the auxiliary lighting structure 2 and the light entering the light guide part 2 by the high beam light incident part 11 can be opaque when transmitted to the side surface of the light guide part 2
  • the light housing 4 absorbs and prevents the light emitted by the high beam light source 6 and the auxiliary lighting light source 7 from emitting from the area other than the light emitting surface of the light emitting part 3 to form stray light, which affects the light emitting effect.
  • the high-beam light incident portion 11 includes at least one light incident structure 16, and the rear end surface of each light incident structure 16 is respectively set as a backward convex curved surface or a conical surface.
  • the structures 16 are arranged in a matrix, and the light incident structures 16 are arranged in at least one row.
  • the rear end surfaces of the light incident structures 16 are respectively set as curved surfaces or tapered surfaces that protrude backwards, which can condense the incident light.
  • the structures 16 are arranged to be connected in sequence or spaced apart.
  • the light-emitting surface of the light-emitting part 3 is set as a front convex surface formed by splicing several planes or curved surfaces distributed in a grid shape, so that the light emitted from the light-emitting surface of the light-emitting part 3 is diffused by a certain angle, thereby increasing the output light to form a light shape. Boundary angle, while also improving the uniformity of the light shape.
  • a second aspect of the present invention provides a high-beam lighting unit, referring to FIG. 12 to FIG. 16 , comprising the above-mentioned high-beam optical element, a circuit board 5 , a high-beam light source 6 corresponding to the high-beam incident portion 11 , and a high-beam light source 6 .
  • the auxiliary lighting structure 12 corresponds to the auxiliary lighting light source 7 , and the high beam light source 6 and the auxiliary lighting light source 7 are arranged on the circuit board 5 .
  • the high-beam lighting unit is further provided with structures such as a heat sink 8 and a heat-dissipating bracket for providing support and heat-dissipating functions to the circuit board 5 and the high-beam optical element.
  • structures such as a heat sink 8 and a heat-dissipating bracket for providing support and heat-dissipating functions to the circuit board 5 and the high-beam optical element.
  • the high-beam lighting unit in the present invention includes a high-beam optical element, a circuit board 5, a light source located on the circuit board 5, and a heat sink 8 connected to the circuit board 5.
  • the high-beam optical element includes a rear The light incident part 1, the light guide part 2 and the light exit part 3 are arranged in sequence forward and integrally formed.
  • the light incident part 1 includes a high beam incident part 11 and an auxiliary lighting structure 12 located below the high beam incident part 11; auxiliary
  • the lighting structure 12 includes an auxiliary lighting incident surface 13 , a first reflecting surface 14 and a second reflecting surface 15 located above the first reflecting surface 14 .
  • the rear end surface of the auxiliary lighting structure 12 is formed as an auxiliary lighting incident surface 13 .
  • the auxiliary lighting light incident surface 13 includes a vertical light incident surface 131 and an oblique light incident surface 132.
  • the oblique light incident surface 132 is arranged to extend obliquely forward and downward from the bottom end of the vertical light incident surface 131.
  • the first The reflective surface 14 can reflect the light received by the auxiliary lighting incident surface 13 to the second reflective surface 15 , and the second reflective surface 15 can reflect the light reflected from the first reflective surface 14 to the second reflective surface 15 to the light guide portion 2;
  • the longitudinal section of the first reflecting surface 14 is set as a forward convex curve
  • the transverse line is set as a backward concave curve
  • the longitudinal section and transverse line of the second reflecting surface 15 are respectively set backward
  • the second reflecting surface 15 is provided with a light diffusing structure formed by several block-shaped protrusions;
  • the outer surface of the light guide part 2 is provided with or integrally formed with an opaque casing 4, and the light output of the light exit part 3
  • the surface is set as a front convex surface formed by splicing several curved surfaces distributed in a grid shape.
  • the high beam light incident portion 11 includes a plurality of light incident structures 16, and the rear end surface of each light incident structure 16 is respectively set as a backward convex curved surface. Or
  • the high-beam light source 6 in the high-beam mode, the high-beam light source 6 is turned on, and the auxiliary lighting light source 7 is turned off. It is then transmitted to the light-emitting part 3 through the light-guiding part 2, and finally exits through the light-emitting surface of the light-emitting part 3 to form high-beam illumination light; in the low-beam illumination mode, turn on the auxiliary lighting light source 7, turn off the high-beam light source 6, and assist
  • the light emitted by the lighting light source 7 is incident on the auxiliary lighting incident surface 13 , is reflected and diffused by the first reflecting surface 14 to the second reflecting surface 15 , and then is reflected and diffused by the second reflecting surface 15 before entering the light guide portion 2 .
  • the opaque housing 4 can prevent the light emitted by the high beam light source 6 and the auxiliary lighting light source 7 from emitting from the area other than the light emitting surface of the light emitting part 3. Stray light.
  • a third aspect of the present invention also provides a vehicle, including the high beam lighting unit according to the technical solution of the second aspect.
  • a vehicle including the high beam lighting unit according to the technical solution of the second aspect.
  • there are multiple high-beam lighting units and the multiple high-beam lighting units are integrated or distributed in the vehicle lamp.
  • the high beam lighting units are arranged and distributed in the vehicle lamp according to longitudinal, lateral or oblique arrangement.
  • the vehicle provided by the present invention has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments of the high-beam optical element and the high-beam lighting unit.
  • the constitution and operation of the vehicle according to the embodiment of the present invention can be understood and easily realized by those skilled in the art, and thus will not be described in detail.
  • the high beam optical element of the present invention is provided with an auxiliary lighting structure 12 on one side of the high beam incident portion 11, and transmits the light incident to the auxiliary lighting structure 12 to the guide after at least one reflection.
  • the light part 2 is transmitted to the light exit part 3 through the light guide part 2, it is projected from the light exit surface of the light exit part 3 to the low beam III area.
  • this part of the light will be directed obliquely upward. Entering the human eye, people can see that the high beam lighting unit is also emitting light, so as to realize the effect that the high beam lighting unit is also lit in the low beam lighting mode; the light incident on the auxiliary lighting structure 12 is reflected and guided by the light guide.
  • Part 2 and light exit part 3 are directly transmitted and projected. Compared with the total reflection of light in the light exit part 3, the diffusely reflected light formed by the impurities in the light exit part 3 is used to enter the human eye to make the high beam lighting unit.
  • the use of the high-beam optical element of the present invention makes the high-beam lighting unit seen by people brighter, so that the lighting brightness of the high-beam lighting unit in the present invention can be within the regulatory scope of the low-beam zone III light-shaped illuminance. It is easy to unify the brightness of the low beam lighting unit, which makes the lighting effect of the appearance of the lamp better.

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

Abstract

一种远光光学元件、远光照明单元和车辆。远光光学元件包括由后向前依次设置的入光部（1）、导光部（2）和出光部（3），入光部（1）包括远光入光部（11）和辅助点亮结构（12）；辅助点亮结构（12）能够将入射至辅助点亮结构（12）的光线经至少一次反射后传输至导光部（2），再经导光部（2）传输至出光部（3），并由出光部（3）的出光面投射至近光III区区域内。远光照明单元包含远光光学元件。车辆包含远光照明单元。远光光学元件能够在近光照明模式下实现点亮效果，且结构简单。

Description

远光光学元件、远光照明单元和车辆
相关申请的交叉引用
本申请要求2020年11月27日提交的中国专利申请202022812461.2的权益，该申请的内容通过引用被合并于本文。
技术领域
本发明涉及车灯，具体地，涉及一种远光光学元件。此外，本发明还涉及一种包括所述远光光学元件的远光照明单元和车辆。
背景技术
随着车辆技术的发展，越来越多的车辆大灯通过设置多个照明单元来形成近光和远光的照明，同时能够实现车灯造型的多样化。多个照明单元可以是由一个或多个近光照明单元和一个或多个远近光一体照明单元组成，也可以是由多个远近光一体照明单元组成，或者是由一个或多个近光照明单元和一个或多个远光照明单元组成，又或者是由一个或多个远近光一体照明单元和一个或多个远光照明单元组成。上述近光照明单元是指投射出近光全部或部分光形的照明单元，上述远光照明单元是指投射出远光全部或部分光形的照明单元，上述远近光一体照明单元是指既投射出近光全部或部分光形，也投射出远光全部或部分光形的照明单元，上述部分光形是指近光或远光的光形是由多个照明单元投射的光形共同拼接或叠加而成，其中每个照明单元只投射出近光或远光的部分光形。
当多个照明单元由一个或多个近光照明单元和一个或多个远近光一体照明单元组成，或者由多个远近光一体照明单元组成时，在近光照明模式下，所有照明单元都会发光；但是当多个照明单元在由一个或多个近光照明单元和一个或多个远光照明单元组成，或者是由一个或多个远近光一体照明单元和一个或多个远光照明单元组成时，近光照明模式下，远光照明单元是不亮的，这时，不是所有照明单元都被点亮，这就没有发挥出多个照明单元的造型优势。因此现有技术中，不具有投射近光光形或近光部分光形的照明单元无法实现在近光照明模式下该照明单元也是发光的功能。
基于人们对车灯造型美观度的要求，需要设计一种新型的车灯光学元件，以解决在近光照明模式下远光照明单元不能被点亮的缺陷。
发明内容
本发明第一方面所要解决的问题是提供一种远光光学元件，该远光光学元件能够在近光照明模式下实现点亮效果，且结构简单。
此外，本发明第二方面所要解决的问题是提供一种远光照明单元，该远光照明单元能够在近光照明模式下实现点亮效果，且结构简单。
进一步地，本发明第三方面所要解决的问题是提供一种车辆，该车辆的车灯能够在近光照明模式下实现远光照明单元的点亮效果。
为了解决上述技术问题，本发明第一方面提供一种远光光学元件，包括由后向前依次设置的入光部、导光部和出光部，所述入光部包括远光入光部和辅助点亮结构；所述辅助点亮结构能够将入射至所述辅助点亮结构的光线经至少一次反射后传输至所述导光部，再经所述导光部传输至所述出光部，并由所述出光部的出光面投射至近光III区区域内。
作为一种优选方式，所述辅助点亮结构包括辅助点亮入光面、第一反射面和第二反射面，所述辅助点亮结构的后端面形成为所述辅助点亮入光面，所述第一反射面能够将所述辅助点亮入光面接收的光线反射至所述第二反射面，所述第二反射面能够将由所述第一反射面反射至所述第二反射面的光线反射至所述导光部。
优选地，所述辅助点亮结构位于所述远光入光部的下方，所述第一反射面位于所述第二反射面的下方。
更优选地，所述辅助点亮入光面包括竖向入光面和斜向入光面，所述斜向入光面设置为从所述竖向入光面的底端倾斜向前向下延伸。
具体地，所述第一反射面的纵截线设置为向前凸出的曲线、横截线设置为向后内凹的曲线，所述第二反射面的纵截线和横截线分别设置为向后凸出的曲线。
典型地，所述第二反射面上设置有光扩散结构。
作为另一种优选方式，所述导光部的外侧面上设置有或一体形成有不透光壳体。
优选地，所述远光入光部包括至少一个入光结构，每个所述入光结构的后端面分别设置为向后凸出的曲面或锥形面，所述入光结构呈矩阵式排列；所述出光部的出光面设置为由呈网格状分布的若干平面或曲面拼接形成的前凸面。
本发明第二方面提供一种远光照明单元，包括上述任意一项所述的远光光学元件、线路板、与所述远光入光部对应设置的远光光源和与所述辅助点亮结构对应设置的辅助点亮光源，所述远光光源和所述辅助点亮光源设置在所述线路板上。
本发明第三方面提供一种车辆，包括上述的远光照明单元。
通过上述技术方案，本发明的远光光学元件在远光入光部的一侧设置有辅助点亮结构，将入射至辅助点亮结构的光线经至少一次反射后传输至导光部，再经导光部传输至出光部后，由出光部的出光面投射至近光III区区域内，当人站在车灯前方时，这部分光线会直接向斜上方射入人眼，使人看到该远光照明单元也是发光的，能够使得近光照明模式下形成出光面点亮的视觉效果，入射至辅助点亮结构的光线经反射后由导光部和出光部直接传输投射，相比光线在出光部内发生全反射，利用全反射的光线经出光部内的杂质形成的漫反射的光线射入人眼而使远光照明单元发光，采用本发明的远光光学元件使人看到的远光照明单元更亮，从而能够使得本发明中远光照明单元的点亮亮度，在近光III区光形照度的法规范围内更容易与近光照明单元的亮度统一，使得车灯外观造型的点亮效果更佳。
有关本发明的其他优点以及优选实施方式的技术效果，将在下文的具体实施方式中进一步说明。
附图说明
图1是本发明中远光光学元件的一种具体实施例的结构示意图之一；
图2是图1所示的远光光学元件的结构示意图之二；
图3是图1所示的远光光学元件的侧视图；
图4是图3中的A-A剖面图；
图5是图1所示的远光光学元件的俯视图；
图6是图5中的B-B剖面图；
图7是本发明中远光光学元件的另一种具体实施例的结构示意图之一；
图8是图7所示的远光光学元件的结构示意图之二；
图9是图7所示的远光光学元件的俯视图；
图10是图9中的C-C剖面图；
图11是图10中的D部位局部放大图；
图12是本发明中远光照明单元的一种具体实施例的结构示意图；
图13是图12所示的远光照明单元的***图之一；
图14是图12所示的远光照明单元的***图之二；
图15是图12所示的远光照明单元的俯视图；
图16是图15中的E-E剖面图；
图17是本发明中辅助点亮结构入射的光线的光路图；
图18是图1所示的远光光学元件中辅助点亮结构入射的光线形成的光形图(虚框部分所示)；
图19是图7所示的远光光学元件中辅助点亮结构入射的光线形成的光形图(虚框部分所示)。
附图标记说明
1入光部                        11远光入光部
12辅助点亮结构                 13辅助点亮入光面
131竖向入光面                  132斜向入光面
14第一反射面                   15第二反射面
16入光结构                     2导光部
3出光部                        4不透光壳体
5线路板                        6远光光源
7辅助点亮光源                  8散热器
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，本发明的保护范围并不局限于下述的具体实施方式。
在本发明的描述中，需要解释的是，在下文的描述中为清楚地说明本发明的技术方案而涉及的一些方位词，例如“前”、“后”、“左”、“右”、“上”、“下”等均是按照光传输方向所指的方位类推所具有的含义，例如，以远光光学元件为例，远光光学元件上靠近远光光源6的一端为后，远离远光光源6的一端则为前；也可以理解为远光光学元件的入光部1所在的一端为后，出光部3所在的一端为前，而相对于远光光学元件的前后方向，远光光学元件的左右两侧所代表的方向即为左右方向，远光光学元件的上下两侧所代表的方向即为上下方向。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“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。本发明中横截线指的是某个面经水平方向的截面截取得到的截线，横截线指的是某个面经前后方向延伸的纵截面截取得到的截线。
本发明提供一种远光光学元件，参见图1至图11，包括由后向前依次设置的入光部1、导光部2和出光部3，入光部1包括远光入光部11和辅助点亮结构12；辅助点亮结构12能够将入射至辅助点亮结构12的光线经至少一次反射后传输至导光部2，再经导光部2传输至出光部3，并由出光部3的出光面投射至近光III区区域内。
本发明中入光部1、导光部2和出光部3可以是独立设置的，也可以是一体成型，保证三者之间的相对位置精度，材料可以为透明材质的塑料、硅胶和玻璃等，塑料可用PMMA或PC。
为了更好地说明本发明提供的远光光学元件的工作过程，以下结合该远光光学元件在应用于远光照明单元时进行详细的介绍和说明，远光照明单元中设置有与远光入光部11对应设置的远光光源6、与辅助点亮结构12对应设置的辅助点亮光源7。该远光照明单元的工作过程为：在近光照明模式下，打开辅助点亮光源7，辅助点亮光源7发出的光线入射至辅助点亮结构12，经辅助点亮结构12进行至少一次反射后传输至导光部2，再经导光部2直接传输至出光部3，并由出光部3的出光面投射至近光III区区域内，III区区域的光线可以从车灯内向斜上方出射以照明路面上的标志牌等，因此，当人站在车灯前方时，这部分光线会直接向斜上方射入人眼，使人看到该远光照明单元也是发光的，实现近光照明模式下该远光照明单元也被点亮，此时，入射至辅助点亮结构12的光线经反射后由导光部2和出光部3直接传输投射至近光III区区域内，不仅能够形成远光照明单元的出光面被点亮的视觉效果，而且相比光线在出光部3内发生全反射，利用全反射的光线经出光部3内的杂质形成的漫反射的光线射入人眼而使远光照明单元发光，采用本发明的远光光学元件使人看到的远光照明单元更亮，使得本发明中远光照明单元的点亮亮度更容易与近光照明单元的亮度统一，使得车灯外 观造型的点亮效果更佳，提高车灯的外观造型美观性；在远光模式下，打开远光光源6，远光光源6发出的光线从远光入光部11的入光面进入，经远光入光部11传输至导光部2，再经导光部2传输至出光部3，最后经出光部3的出光面出射以形成远光照明光线。
作为本发明的一种优选实施方式，辅助点亮结构12包括辅助点亮入光面13、第一反射面14和第二反射面15，辅助点亮结构12的后端面形成为辅助点亮入光面13，第一反射面14能够将辅助点亮入光面13接收的光线反射至第二反射面15，第二反射面15能够将由第一反射面14反射至该第二反射面15上的光线反射至导光部2。第一反射面14和第二反射面15的设置不仅能够使得辅助点亮入光面13接收的光线高效地传输至导光部2，而且使得光线经第一反射面14的反射和第二反射面15的反射分别形成一定程度的扩散，使得出光部3的出光面投射出的光形更加均匀且降低光形照度。此时，辅助点亮光源7点亮后的光路图如图17所示，经出光部3的出光面投射的光线投射在配光屏幕上可形成如图18所示的辅助点亮光形。
本发明中，辅助点亮结构12可以位于远光入光部11的上方、下方、左方和右方中的任意一个方位，具体地可以根据实际生产和使用需求确定两者的结构形式。优选情况下，辅助点亮结构12位于远光入光部11的下方，第一反射面14位于第二反射面15的下方，有利于远光光学元件的结构设计，在应用于车灯时，减小或避免对近光照明的影响。
本发明中，辅助点亮入光面13优选设置为平面，结构简单，可制造性好，除此之外，辅助点亮入光面13也可以是凸曲面，以使入射至辅助点亮入光面13的光线能够更多地射向第一反射面14，从而提高辅助点亮结构12对光线的利用率。作为辅助点亮入光面13的一种优选实施方式，参见图7至图11，辅助点亮入光面13包括竖向入光面131和斜向入光面132，斜向入光面132设置为从竖向入光面131的底端倾斜向前向下延伸。在辅助点亮入光面13为上下延伸的平面的情况下，辅助点亮光源7射至其下半部分的光线中存在部分光线经第一反射面14反射后直接由出光部3出射，而未经第二反射面15进行反射，进而这部分光线投射出去的照度较高，容易超出法规对近光III区照度的要求；斜向入光面132的斜向设置不仅能够改变该入光面接收的光线经第一反射面14反射后的方向，以使得入射至斜向入光面132的光线尽可能地经第二反射面15反射和扩散 后再由出光部3的出光面投射，避免投射出去的光线照度超量，从而形成更均匀的光形，还能够减少该入光面接收的光线，进一步减少经第一反射面14反射后直接出射的光线，经出光部3的出光面投射的光线投射在配光屏幕上可形成如图19所示的辅助点亮光形，相比图18所示辅助点亮光形更均匀，照度更低。
作为第一反射面14和第二反射面15的一种优选实施方式，参见图4、图6和图10，第一反射面14的纵截线设置为向前凸出的曲线、横截线设置为向后内凹的曲线，第二反射面15的纵截线和横截线分别设置为向后凸出的曲线。第一反射面14的横截线和第二反射面15的横截线的设置，能够保证两个反射面之间的厚度，避免形成中间厚两边薄的不稳定结构；第一反射面14的纵截线和第二反射面15的纵截线的设置，使得两个反射面相配合能够将由辅助点亮入光面13入射的光线尽可能多地反射射入导光部2，减少反射向导光部2以外区域的光线，提高点亮效果；此外，通过合理地设置第二反射面15的宽度，能够使得其反射的光线恰好反射至出光部3内，确保出光部3边缘区域的光通量，也有利于其出光效果以及出射光形的均匀性。
进一步优选地，参见图7、图10和图11，第二反射面15上设置有光扩散结构。光扩散结构可以是若干块状凸起、块状凹陷部、条纹凸起、条纹凹陷或其他能够改变第二反射面15的面型的结构，以能够改变入射至第二反射面15的光线的反射方向，使得经第二反射面15反射后的光线更加分散，降低经导光部2传输和出光部3投射后形成的光形照度，提高光形的均匀性，以符合近光III区光形照度的法规要求。
作为本发明的另一种优选实施方式，参见图13至图16，导光部2的外侧面上设置有或一体形成有不透光壳体4。不透光壳体4与导光部2可以采用双色注塑一体成型，也可以采用嵌件注塑一体成型，还可以采用其他成型方式，只要能够将不透光壳体4形成于导光部2的外部，均属于本发明的保护范围。此时，由辅助点亮结构2反射进入到导光部2内的光线和远光入光部11进入导光部2内的光线，在传输至导光部2的侧面时，能够被不透光壳体4吸收，防止远光光源6和辅助点亮光源7发出的光线从出光部3的出光面以外的区域出射而形成杂散光，影响出光效果。
作为本发明的又一种优选实施方式，远光入光部11包括至少一个入光结构16，每个入光结构16的后端面分别设置为向后凸出的曲面或锥形面，入光结构 16呈矩阵式排列，入光结构16设置为至少一排。入光结构16的后端面分别设置为向后凸出的曲面或锥形面，能够对入射的光线进行汇聚，可选地，入光结构16设置为一排、两排或多排，入光结构16设置为依次连接或者间隔设置。出光部3的出光面设置为由呈网格状分布的若干平面或曲面拼接形成的前凸面，使得经出光部3的出光面出射的光线扩散一定的角度，从而增大出射光线形成光形的边界角度，同时还能提高光形的均匀性。
本发明第二方面提供一种远光照明单元，参见图12至图16，包括上述所述的远光光学元件、线路板5、与远光入光部11对应设置的远光光源6和与辅助点亮结构12对应设置的辅助点亮光源7，远光光源6和辅助点亮光源7设置在线路板5上。
可选地，远光照明单元上还设置有用于对线路板5和远光光学元件提供支撑、散热功能的散热器8、散热支架等结构。在导光部2的外侧面上设置有或一体形成有不透光壳体4时，不透光壳体4能够与线路板5和散热器8连接，以对远光光学元件支撑。
在本发明中远光照明单元一个相对优选的实施例中，包括远光光学元件、线路板5、位于线路板5上的光源和与线路板5连接的散热器8，远光光学元件包括由后向前依次设置且一体成型的入光部1、导光部2和出光部3，入光部1包括远光入光部11和位于远光入光部11下方的辅助点亮结构12；辅助点亮结构12包括辅助点亮入光面13、第一反射面14和位于第一反射面14上方的第二反射面15，辅助点亮结构12的后端面形成为辅助点亮入光面13，辅助点亮入光面13包括竖向入光面131和斜向入光面132，斜向入光面132设置为从竖向入光面131的底端倾斜向前向下延伸，第一反射面14能够将辅助点亮入光面13接收的光线反射至第二反射面15，第二反射面15能够将由第一反射面14反射至该第二反射面15的光线反射至导光部2；第一反射面14的纵截线设置为向前凸出的曲线、横截线设置为向后内凹的曲线，第二反射面15的纵截线和横截线分别设置为向后凸出的曲线，第二反射面15上设置有若干块状凸起形成的光扩散结构；导光部2的外侧面上设置有或一体形成有不透光壳体4，出光部3的出光面设置为由呈网格状分布的若干曲面拼接形成的前凸面，远光入光部11包括多个入光结构16，每个入光结构16的后端面分别设置为向后凸出的曲面或锥形面，入光结构16排列为一排；光源包括与远光入光部11对应设置的远光光源6和与辅助 点亮结构12对应设置的辅助点亮光源7。
上述实施例所述的远光照明单元在远光模式下，打开远光光源6、关闭辅助点亮光源7，远光光源6发出的光线经入光结构16聚光后进入导光部2，再经导光部2传输至出光部3，最后经出光部3的出光面出射，以形成远光照明光线；在近光照明模式下，打开辅助点亮光源7、关闭远光光源6，辅助点亮光源7发出的光线经辅助点亮入光面13入射后，经第一反射面14反射和扩散至第二反射面15，再经第二反射面15反射和扩散后进入导光部2，并经导光部2传输至出光部3，最后由出光部3的出光面以一定的扩散角度投射至近光III区区域内，以形成如图19所示的辅助点亮光形，实现近光照明模式下该远光照明单元也被点亮的效果；不透光壳体4能够防止远光光源6和辅助点亮光源7发出的光线从出光部3的出光面以外的区域出射而形成杂散光。
进一步地，本发明第三方面还提供一种车辆，包括根据第二方面技术方案中所述的远光照明单元。其中，远光照明单元设置为多个，多个远光照明单元一体设置或分散设置于车灯内。可选地，远光照明单元按照纵向、横向或者倾斜排列分布于车灯内。本发明提供的车辆，至少具有上述远光光学元件和远光照明单元实施例的技术方案所带来的所有有益效果。根据本发明实施例的车辆的构成和操作对于本领域技术人员而言是可以理解并且容易实现的，因此不再详细描述。
由以上描述可以看出，本发明的远光光学元件在远光入光部11的一侧设置有辅助点亮结构12，将入射至辅助点亮结构12的光线经至少一次反射后传输至导光部2，再经导光部2传输至出光部3后，由出光部3的出光面投射至近光III区区域内，当人站在车灯前方时，这部分光线会直接向斜上方射入人眼，使人看到该远光照明单元也是发光的，实现近光照明模式下该远光照明单元也被点亮的效果；入射至辅助点亮结构12的光线经反射后由导光部2和出光部3直接传输投射，相比光线在出光部3内发生全反射，利用全反射的光线经出光部3内的杂质形成的漫反射的光线射入人眼而使远光照明单元发光，采用本发明的远光光学元件使人看到的远光照明单元更亮，从而能够使得本发明中远光照明单元的点亮亮度，在近光III区光形照度的法规范围内，更容易与近光照明单元的亮度统一，使得车灯外观造型的点亮效果更佳。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于上述实施方式中的具体细节，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，这些简单变型均属于本发明的保护范围。
另外需要说明的是，在上述具体实施方式中所描述的各个具体技术特征，在不矛盾的情况下，可以通过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。
此外，本发明的各种不同的实施方式之间也可以进行任意组合，只要其不违背本发明的思想，其同样应当视为本发明所公开的内容。

Claims (10)

  1. 一种远光光学元件，其特征在于，包括由后向前依次设置的入光部(1)、导光部(2)和出光部(3)，所述入光部(1)包括远光入光部(11)和辅助点亮结构(12)；所述辅助点亮结构(12)能够将入射至所述辅助点亮结构(12)的光线经至少一次反射后传输至所述导光部(2)，再经所述导光部(2)传输至所述出光部(3)，并由所述出光部(3)的出光面投射至近光III区区域内。
  2. 根据权利要求1所述的远光光学元件，其特征在于，所述辅助点亮结构(12)包括辅助点亮入光面(13)、第一反射面(14)和第二反射面(15)，所述辅助点亮结构(12)的后端面形成为所述辅助点亮入光面(13)，所述第一反射面(14)能够将所述辅助点亮入光面(13)接收的光线反射至所述第二反射面(15)，所述第二反射面(15)能够将由所述第一反射面(14)反射至所述第二反射面(15)的光线反射至所述导光部(2)。
  3. 根据权利要求2所述的远光光学元件，其特征在于，所述辅助点亮结构(12)位于所述远光入光部(11)的下方，所述第一反射面(14)位于所述第二反射面(15)的下方。
  4. 根据权利要求3所述的远光光学元件，其特征在于，所述辅助点亮入光面(13)包括竖向入光面(131)和斜向入光面(132)，所述斜向入光面(132)设置为从所述竖向入光面(131)的底端倾斜向前向下延伸。
  5. 根据权利要求3所述的远光光学元件，其特征在于，所述第一反射面(14)的纵截线设置为向前凸出的曲线、横截线设置为向后内凹的曲线，所述第二反射面(15)的纵截线和横截线分别设置为向后凸出的曲线。
  6. 根据权利要求5所述的远光光学元件，其特征在于，所述第二反射面(15)上设置有光扩散结构。
  7. 根据权利要求1至6中任意一项所述的远光光学元件，其特征在于，所 述导光部(2)的外侧面上设置有或一体形成有不透光壳体(4)。
  8. 根据权利要求1至6中任意一项所述的远光光学元件，其特征在于，所述远光入光部(11)包括至少一个入光结构(16)，每个所述入光结构(16)的后端面分别设置为向后凸出的曲面或锥形面，所述入光结构(16)呈矩阵式排列；所述出光部(3)的出光面设置为由呈网格状分布的若干平面或曲面拼接形成的前凸面。
  9. 一种远光照明单元，其特征在于，包括权利要求1至8中任一项所述的远光光学元件、线路板(5)、与所述远光入光部(11)对应设置的远光光源(6)和与所述辅助点亮结构(12)对应设置的辅助点亮光源(7)，所述远光光源(6)和所述辅助点亮光源(7)设置在所述线路板(5)上。
  10. 一种车辆，其特征在于，包括根据权利要求9所述的远光照明单元。
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