WO2022100057A1 - 车灯用光学装置、汽车照明装置及汽车 - Google Patents

车灯用光学装置、汽车照明装置及汽车 Download PDF

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Publication number
WO2022100057A1
WO2022100057A1 PCT/CN2021/095811 CN2021095811W WO2022100057A1 WO 2022100057 A1 WO2022100057 A1 WO 2022100057A1 CN 2021095811 W CN2021095811 W CN 2021095811W WO 2022100057 A1 WO2022100057 A1 WO 2022100057A1
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WIPO (PCT)
Prior art keywords
light
guide body
light guide
cut
optical device
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PCT/CN2021/095811
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English (en)
French (fr)
Inventor
祝贺
仇智平
桑文慧
Original Assignee
华域视觉科技(上海)有限公司
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Publication of WO2022100057A1 publication Critical patent/WO2022100057A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
    • F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
    • F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles

Definitions

  • the present invention relates to a vehicle lamp, in particular, to an optical device for a vehicle lamp.
  • the invention also relates to an automobile lighting device and an automobile.
  • left-hand drive headlights or right-hand drive headlights are usually designed for different needs of different countries or regions, because left-hand drive headlights can only be applied to Left-hand drive market, and right-hand drive headlights can only be used in the right-hand drive market, which leads to poor product versatility.
  • the light shape switching is usually realized by the rotation of the visor, the rotating shaft and the solenoid valve, etc.
  • the light shape switching method has high noise, low modeling flexibility, The system composition is more complicated.
  • the auxiliary low-beam module forms low-beam broadening lighting
  • the main low-beam module forms left-hand drive cut-off area lighting or right-hand drive cut-off area lighting.
  • the auxiliary low-beam module and the main low-beam module in this technology are usually arranged separately, which makes the volume of the vehicle lamp relatively large, and it is difficult to meet the requirements of the miniaturization of the current vehicle lamp.
  • the optical element for low beam broadening illumination and the optical element for driving the left and right cut-off area illumination are set close together, some of the light in the optical element for low beam broadening illumination will enter into the optical element for the cut-off area illumination, and the cut-off Area lighting has adverse effects.
  • the technical problem to be solved by the present invention is to provide an optical device for a vehicle lamp, the optical device for a vehicle lamp has a compact structure, and the direction of the light rays in different optical channels is controllable.
  • the further technical problem to be solved by the present invention is to provide an automotive lighting device, which has a compact structure and a clear cut-off line of lighting light shape.
  • the technical problem to be solved by the present invention is to provide an automobile whose illumination light shape is clear and stable.
  • one aspect of the present invention provides an optical device for a vehicle lamp, comprising a light guide portion integrally formed by a first light guide body and a second light guide body, and the first guide portion in the light guide portion
  • the light body and the second light guide body are arranged side by side, a material interface is formed between the first light guide body and the second light guide body, a cutoff line structure is arranged in the second light guide body, and the first light guide body is
  • the refractive index of a light guide body is greater than the refractive index of the second light guide body, so that the light transmitted in the first light guide body can be formed on the material interface when the light transmitted in the first light guide body irradiates the material interface Total reflection, and when the light transmitted in the second light guide body is irradiated on the material interface, it can enter the first light guide body through the material interface.
  • the optical device for a vehicle lamp of the present invention comprises a first light channel formed by a first light incident part, a first light passing part and a first light emitting part connected in sequence;
  • a second light channel formed by a light-passing part and a second light-exiting part, the first light-passing part and the second light-passing part form the light-guiding part, and the first light-passing part is located in the second light-passing part.
  • the first light passing portion is formed by the first light guide body
  • the second light passing portion is formed by the second light guide body
  • the first light passing portion is formed with the second light guide body.
  • the interface between the second light-passing parts is formed as the material interface, and the cut-off line structure is formed in the second light-passing part.
  • the light enters from the first light entrance part, passes through the transmission of the first light passage part, and exits from the first light exit part to form an illumination area; enters from the second light entrance part, passes through the second pass
  • the transmission of the light part after being emitted from the second light emitting part, can be formed as another illumination area with a cut-off line.
  • the light transmitted through the first light-passing portion can produce total reflection at the material interface between the first light-passing portion and the second light-passing portion, and cannot enter the second light-passing portion. On the one hand, it forms the upper boundary of the illumination area.
  • the material interface between the light-transmitting part and the second light-passing part enters the first light-passing part and exits through the first light-exiting part, so as to partially overlap the two illumination areas and avoid dark areas between the two illumination areas.
  • the first light incident portion is formed by the first light guide body
  • the second light incident portion is formed by the second light guide body.
  • the light channel formed by the first light incident portion and the first light passing portion is formed by the same light guide body
  • the light channel formed by the second light incident portion and the second light passing portion is also formed by the same type of light guide.
  • the molding of the light guide body can reduce the molding process of the optical device for a vehicle lamp of the present invention, and improve the convenience of processing.
  • both the first light incident portion and the second light incident portion are formed by the first light guide body.
  • the structure of the light incident portion is relatively complex, and the first light incident portion and the second light incident portion formed by the same light guide body can be processed and formed at one time, which is convenient for processing and lower in manufacturing cost.
  • both the first light incident portion and the second light incident portion are formed by the second light guide body.
  • the first light incident portion and the second light incident portion are also processed and formed by the same light guide body, which is convenient for processing.
  • the first light incident portion includes a plurality of widening concentrating cups, and the widening concentrating cups are suitable for introducing light emitted by a light source and exiting through the first light emitting portion, so as to form a low beam widening illumination area
  • the second light incident portion includes a cut-off portion condensing cup, and the cut-off portion condensing cup is suitable for introducing the light emitted by the light source, and then exits after being blocked by the cut-off line forming structure, so as to form a near-beam cut-off portion illumination
  • the low-beam widening illumination area is combined with the low-beam cut-off illumination area to form a low-beam illumination light shape.
  • the light transmitted in the first light-passing portion cannot pass through the material interface between the first light-passing portion and the second light-passing portion, a low beam corresponding to the material interface is formed
  • the upper boundary of the lighting area is widened, and the light transmitted in the first light-passing part is prevented from entering the second light-passing part and irradiating the lighting area of the low-beam cut-off part, which affects the light-dark cut-off line of the low-beam lighting light shape.
  • a part of the light transmitted in the second light-passing portion can enter the first light-passing portion through the material interface, forming a partial overlap of the low-beam cut-off illumination area and the low-beam broadening illumination area, so that the low beam is cut off
  • the connection between the top lighting area and the low beam extended lighting area is good. Therefore, the formed light-shape cut-off line of the low-beam illumination is clearer, and the occurrence of a connecting dark area between the low-beam cut-off portion lighting area and the low-beam widening lighting area is avoided.
  • the cut-off condensing cup includes a left-hand drive cut-off concentrator cup and a right-hand drive cut-off concentrator cup, and the light introduced by the left-hand drive cut-off concentrator cup is blocked by the cut-off line structure and passes through.
  • the second light emitting part emits to form a lighting area of the left-hand drive cut-off part; the light introduced by the right-hand drive cut-off part concentrator cup is blocked by the cut-off line forming structure and then exits through the second light emitting part, which can form Right-hand drive cut-off lighting area.
  • the left-hand drive cut-off portion lighting area and the right-hand drive cut-off portion lighting area can be formed respectively, It is combined with the low beam widening lighting area to form the left-hand driving low-beam lighting light shape and the right-hand driving low-beam lighting light shape respectively, which can conveniently complete the switching of the left and right driving low-beam lighting light shapes.
  • the optical device for a vehicle lamp of the present invention further comprises a zone III structure, wherein the zone III structure comprises a condensing cup extension, an optical channel in zone III and a light emitting surface in zone III, which are integrally connected, and the condensing cup extension is connected to On the lower side of the condenser cup of the cut-off portion, the extension portion of the condenser cup is connected to the lower side of the second light-passing portion, the light-emitting surface of the zone III is located at the front end of the light channel of the zone III, and the A part of the light introduced into the condenser cup at the cut-off portion can enter the extension portion of the condenser cup, pass through the light channel of zone III, and be emitted from the light-emitting surface of zone III to form low beam zone III light.
  • the zone III structure comprises a condensing cup extension, an optical channel in zone III and a light emitting surface in zone III, which are integrally connected
  • the condensing cup extension is
  • the optical device for a vehicle lamp of the present invention further includes a lens portion, the lens portion includes a lens light incident surface and a lens light exit surface, the first light exit portion and the second light exit portion and the lens light entrance surface All-in-one connection.
  • the optical device for a vehicle lamp of the present invention also has the function of a common lens, that is, an illumination light shape can be formed without setting an independent lens, so the structure of the vehicle lamp can be simplified and the volume of the vehicle lamp can be reduced, Improve the stability of the lamp structure.
  • the light incident surface of the lens is greater than the sum of the first light emitting portion and the second light emitting portion, and the first light emitting portion and the second light emitting portion are integrally connected to the light incident surface of the lens. side.
  • the light incident surface of the lens in addition to the part connected to the first light emitting part and the second light emitting part, the light incident surface of the lens also retains a part of the light incident surface of the lens outside the connecting part, and can receive other light incidents through the part of the light incident surface of the lens. Incident light, so that the lens part can also be used to achieve other lighting functions.
  • the first light guide body is a PC light guide body or a PMMA light guide body
  • the second light guide body is a silica gel light guide body.
  • the PC light guide body refers to the light guide body of PC material
  • the PMMA light guide body refers to the light guide body of PMMA material
  • the silica gel light guide body refers to the light guide body of silica gel material.
  • the refractive index of the light guide body of PC or PMMA material is higher, and the refractive index of the light guide body of silica gel material is lower, and can be used as the first light guide body and the second light guide body respectively.
  • the silicone material has high temperature resistance, which can prevent the light guide body from being deformed or changing the light guide performance due to the rise in temperature.
  • a second aspect of the present invention provides an automotive lighting device using the optical device for a vehicle lamp provided in the first aspect of the present invention.
  • a third aspect of the present invention provides an automobile using the automobile lighting device provided in the second aspect of the present invention.
  • the light guide portion is formed by arranging the first light guide body and the second light guide body in parallel, and the first light guide body and the second light guide body can respectively form a light supply Through the light channel, the two light channels can respectively form two different illumination areas; wherein, the cut-off line structure in the second light channel can form the illumination area with bright and dark cut-off lines.
  • the first light guide body and the second light guide body are integrally formed into a light guide part including two light channels, which reduces the volume of the optical device for vehicle lamps.
  • the refractive index of the first light guide body is greater than the refractive index of the second light guide body, so that the light transmitted in the first light guide body can be generated at the material interface formed between the first light guide body and the second light guide body Total reflection can prevent the light transmitted in the first light guide body from entering the second light guide body through the material interface; and the light transmitted in the second light guide body will not form total reflection at the material interface, so Part of the light can enter the first light guide through the material interface.
  • the different light channels arranged in parallel are closely attached together, and the structure is more compact; the light in the first light guide body can be prevented from entering the second light guide body, and the light in the second light guide body can be prevented from being affected.
  • the light in the second light guide body can partially enter the first light guide body, forming the lighting area formed by the light in the first light guide body and the second light guide body.
  • the overlap between the illuminated areas formed by the light rays prevents the formation of dark areas between the two illuminated areas.
  • the automotive lighting device of the present invention can form different lighting areas with a smaller volume, the lighting shape is clear, and the connection between the two lighting areas is good.
  • the automobile of the present invention also has the above-mentioned advantages because the automobile lighting device of the present invention is used.
  • FIG. 1 is a perspective view of an embodiment of an optical device for a vehicle lamp of the present invention
  • Fig. 2 is a perspective view of Fig. 1 from another perspective
  • Fig. 3 is a perspective view of Fig. 1 from another perspective
  • Fig. 4 is the top view of Fig. 1;
  • Fig. 5 is the A-A azimuth cross-sectional schematic diagram of Fig. 4;
  • FIG. 6 is a schematic diagram of the optical path of the optical device for a vehicle lamp shown in FIG. 1;
  • FIG. 7 is a perspective view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • Fig. 8 is the top view of Fig. 7;
  • Fig. 9 is the B-B azimuth sectional schematic diagram of Fig. 8.
  • FIG. 10 is a perspective view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • Figure 11 is a top view of Figure 10
  • Fig. 12 is the C-C azimuth cross-sectional schematic diagram of Fig. 11;
  • Fig. 13 is a partial schematic diagram of the second optical channel in Fig. 1;
  • FIG. 14 is a perspective view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • Fig. 15 is a partial schematic diagram of the second optical channel in Fig. 14;
  • Figure 16 is a top view of Figure 15;
  • Fig. 17 is the D-D azimuth sectional schematic diagram of Fig. 16;
  • FIG. 18 is a schematic diagram of the light shape of the left-hand drive low beam illumination formed by an embodiment of the optical device for a vehicle lamp of the present invention.
  • 19 is a schematic diagram of the light shape of the right-hand drive low beam illumination formed by an embodiment of the optical device for a vehicle lamp of the present invention.
  • FIG. 20 is a perspective view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • Figure 21 is a perspective view of Figure 20 from another perspective
  • Figure 22 is a top view of Figure 20;
  • Fig. 23 is the E-E azimuth cross-sectional schematic diagram of Fig. 22;
  • Fig. 24 is a schematic diagram of the optical path of zone III of the optical device for a vehicle lamp shown in Fig. 20;
  • 25 is a perspective view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • Figure 26 is a perspective view of Figure 25 from another perspective
  • Figure 27 is a top view of Figure 25;
  • Figure 28 is a schematic view of the F-F azimuth section of Figure 27;
  • 29 is a schematic cross-sectional view of another embodiment of the optical device for a vehicle lamp of the present invention.
  • FIG. 30 is a schematic cross-sectional view of yet another embodiment of the optical device for a vehicle lamp of the present invention.
  • 31 is a schematic structural diagram of an embodiment of an automotive lighting device of the present invention.
  • Figure 32 is a top view of Figure 31;
  • FIG. 33 is a schematic sectional view taken along the line G-G in FIG. 32 .
  • the first light guide body 11 The first light entrance part
  • the first light-passing part 13 The first light-emitting part
  • Light source module 61 Low beam broadening light source
  • orientation or positional relationship indicated by the orientation words such as “front, rear, up, down, left and right” is based on the fact that the automotive lighting device of the present invention is normally installed in The orientation or positional relationship to the rear of the vehicle.
  • direction indicated by the orientation word "front” is the direction in which the light-emitting surface of the automotive lighting device faces.
  • the description of the orientation or positional relationship of the optical element of the vehicle light, the vehicle lamp module and its components of the present invention is consistent with the installation orientation in actual use.
  • first and second are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or indicating the quantity of the indicated technical features.
  • Two features may explicitly or implicitly include one or more of the stated features.
  • connection may be a fixed connection, or It can be a detachable connection or 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 an interaction relationship between the two elements.
  • connection may be a fixed connection, or It can be a detachable connection or 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 an interaction relationship between the two elements.
  • an embodiment of the optical device for a vehicle lamp of the present invention includes a light guide part for conducting the light of the vehicle lamp, and the light guide part is composed of a first light guide body 1 and a second light guide body 2 One-piece molding.
  • the first light guide body 1 and the second light guide body 2 can be integrally formed by inlay injection molding or two-color injection molding.
  • the first light guide body 1 and the second light guide body 2 are arranged side by side with each other.
  • the juxtaposition of the first light guide body 1 and the second light guide body 2 is relative to the transmission direction of the light, that is to say, the first light guide body 1 and the second light guide body 2 are arranged in parallel with each other.
  • the first light guide body 1 and the second light guide body 2 are light guide bodies of different materials, wherein the refractive index of the first light guide body 1 is greater than the refractive index of the second light guide body 2 .
  • the light transmitted in the body 1 When the light transmitted in the body 1 is irradiated on the material interface 3, it can form a total reflection and be reflected back to the first light guide body 1, so that the light transmitted in the first light guide body 1 cannot enter the second light guide body 2; However, when the light transmitted in the second light guide body 2 is irradiated on the material interface 3 , total reflection will not occur, and part of the light can be refracted at the material interface 3 to enter the first light guide body 1 .
  • the optical device for a vehicle lamp of the present invention includes a first light incident portion 11 , a first light passing portion 12 , and a first light exit portion. part 13 , the second light incident part 21 , the second light passing part 22 and the second light exit part 23 .
  • the first light incident part 11 , the first light passing part 12 and the first light emitting part 13 are connected in sequence to form a first light channel. The light can enter the first light channel from the first light incident part 11 , be transmitted through the first light passing part 12 , and be emitted from the first light exit part 13 .
  • the part of the light can be projected by the converging optical element to form the first illumination area.
  • the converging optical element can be an independent element in the lamp, such as a lens, or an attached light-condensing structure on the optical device.
  • the second light incident portion 21 , the second light passing portion 22 and the second light exit portion 23 are connected in sequence to form a second light channel.
  • a cutoff line structure 24 is formed in the second light passing portion 22 .
  • the cutoff line structure 24 is disposed on the lower side of the second light passing portion 22 and has a boundary corresponding to the shape of the cutoff line of the low beam shape.
  • the light can enter the second light channel from the second light incident portion 21 , be transmitted through the second light passing portion 22 , and be blocked by the cut-off line structure 24 , and then be emitted from the second light exit portion 23 .
  • the part of the light can be projected by the converging optical element to form a second illumination area with a cut-off line.
  • the first light-passing portion 12 is integrally connected to the upper side of the second light-passing portion 22 to form a light-guiding portion, and the first light-passing portion 12 is formed by the first light-guiding body 1 , and the second light-passing portion 22 By molding the second light guide body 2 , the interface between the first light passing portion 12 and the second light passing portion 22 forms a material interface 3 .
  • the first light incident portion 11 and the second light incident portion 21 have light incident structures, and the light incident structures may be condensing cups, or other light incident structures whose light incident surfaces are flat, concave or convex;
  • the light incident structures of the portion 11 and the second light incident portion 21 may be the same or different.
  • the light incident structure can better guide the light emitted by the light source.
  • the first light emitting portion 13 and the second light emitting portion 23 may be a light emitting structure with a light emitting surface, or may be a light emitting surface at the front end of the corresponding light passing portion.
  • the shape of the light emitting surface can be freely designed according to the needs of the lighting area, and can be a plane, a cylindrical surface, a concave surface, a convex surface or a free-form surface.
  • the first light incident portion 11 , the first light passing portion 12 and the first light exit portion 13 are all composed of a first light guide body 1, the second light incident part 21, the second light passing part 22 and the second light exit part 23 are all made of the second light guide body 2, and the entire optical device for the vehicle lamp is integrally formed.
  • the first light incident portion 11 , the first light passing portion 12 and the first light exit portion 13 are made of the same material, and there is no space between the first light incident portion 11 , the first light passing portion 12 and the first light exit portion 13 .
  • the second light incident part 21, the second light passing part 22 and the second light exit part 23 are also made of the same material, the second light incident part 21, the second light passing part 22 and the second light exit part 23 There is no interface between. In this way, the light will not be reflected by the interface when passing through the corresponding light channel, and the light efficiency of the light channel is high.
  • the first light incident part 11 , the second light incident part 21 , the first light passing part 12 and the first light exit part 13 are all made of the first light guide body 1
  • the second light passing portion 22 and the second light exit portion 23 are made of the second light guide body 2
  • the entire vehicle lamp is integrally formed with an optical device. Since the structure of the light incident portion is usually complicated, the first light incident portion 11 and the second light incident portion 21 are made of the same material, and the first light incident portion 11 and the second light incident portion 21 can be injection-molded at one time, simplifying the The processing technology of the optical device for the vehicle lamp of the present invention is improved, and the processing cost is reduced.
  • a first light incident part 11 , a second light incident part 21 , a second light passing part 22 and a second light exit part 23 are all made of the second light guide body 2
  • the first light passing portion 12 and the first light exit portion 13 are made of the first light guide body 1 .
  • the first light incident portion 11 and the second light incident portion 21 are made of the same material, the first light incident portion 11 and the second light incident portion 21 can be injection-molded at one time, which simplifies the optics for a vehicle lamp of the present invention.
  • the processing technology of the device is described in FIGS. 10-12 .
  • the second light guide body 2 can be made of silica gel with a lower refractive index.
  • the silica gel has better temperature resistance, and the light incident part is closer to the light source.
  • the use of silica gel material can prevent the first light incident part 11 and the second light incident.
  • the part 21 is deformed or aged at a relatively high working temperature, which can ensure the stability of the emitted light shape and prolong the service life of the optical device for the vehicle lamp.
  • the first light incident portion 11 includes a plurality of broadened condensing cups, and the plurality of broadened condensing cups can be combined with a plurality of light-emitting light sources
  • the light emitted by a plurality of light-emitting light sources can be introduced into the optical device for vehicle lamp of the present invention, transmitted through the first light-passing portion 12, emitted through the first light-emitting portion 13, and formed by the projection of the converging optical element.
  • the first lighting area is the low beam broadening lighting area 41 as shown in FIG. 18 and FIG. 19 .
  • the second light incident portion 21 includes a cutoff portion concentrator cup, and the second light passing portion 22 is provided with a cutoff line structure 24 .
  • the cut-off structure 24 may be a recess with a predetermined shape provided on the lower side of the second light passing portion 22 , or may be a light shielding member provided inside the second light passing portion 22 .
  • the cut-off line structure 24 has an edge corresponding to the required shape of the cut-off line, and can block the light passing through the second light-passing portion 22 to form a cut-off line of light and dark in the second lighting area.
  • the cut-off concentrator cup can guide the light emitted by the corresponding light source.
  • the cut-off line structure 24 blocks the passing light, and the blocked light is emitted through the second light-emitting portion 23 and converged.
  • the second illumination area formed after the projection of the optical element is the illumination area 42 of the low-beam cut-off portion with the cut-off line as shown in FIG. 18 and FIG. 19 .
  • the low beam widening illumination area 41 is combined with the low beam cutoff illumination area 42 to form a low beam illumination light shape with a bright and dark cut-off line.
  • the cut-off condensing cup includes a left-hand drive cut-off concentrator 211 and a right-hand drive cut-off concentrator 212 .
  • the cut-off portion condensing cup 211 and the right-hand drive cut-off portion concentrator cup 212 can respectively correspond to the left-hand drive cut-off portion light source and the right-hand drive cut-off portion light source.
  • the cut-off line structure 24 is arranged relative to the position between the left-hand drive cut-off portion condensing cup 211 and the right-hand drive cut-off portion condensing cup 212 , and the cut-off line structure 24 may be arranged in the middle of the second light passing portion 22 and penetrate through the second In the recess of the light-passing portion 22 , the left and right sides of the cut-off line structure 24 are respectively formed as cut-off slopes 241 , and the top of the cut-off line structure 24 is formed as a cut-off top groove 242 on the upper side of the second light pass portion 22 .
  • the front end of the cut-off line structure 24 may be limited to the inside of the second light-passing portion 22, or may penetrate the second light-emitting portion 23 forward, and divide the light-emitting portion into left and right portions.
  • the settings of the cut-off slopes 241 on the left and right sides correspond to the required shapes of the left-hand drive light-dark cut-off line and the right-hand drive light-dark cut-off line respectively.
  • the second light emitting portion 23 emits light and is projected by the converging optical element to form a left-hand drive cut-off portion illumination area 421 as shown in FIG.
  • the light is emitted through the second light emitting portion 23 and projected by the converging optical element to form a right-hand drive cut-off portion illumination area 422 as shown in FIG. 19 .
  • the left-hand drive cut-off portion lighting area 421 is combined with the low-beam widening lighting area 41 to form a left-hand drive low-beam lighting light pattern
  • the right-hand drive cut-off portion lighting area 422 is combined with the low-beam widening lighting area 41 to form a right-hand drive low beam lighting light pattern.
  • the top of the cut-off line structure 24 penetrates the second light-passing portion 22 so that the light introduced through the left-hand drive cut-off concentrator cup 211 and the light introduced through the right-hand drive cut-off condensing cup 212 are respectively limited to the corresponding second pass light. 22 area, to ensure the clarity and lighting range of the low beam lighting for left and right driving, so as to ensure driving safety.
  • the lower side of the condenser cup of the cut-off portion of the second light incident portion 21 extends forward, forming an extension of the condenser cup Part 25, the rear part of the lower side of the second light passing part 22 is provided with an optical channel 26 in zone III, and the front end of the optical channel 26 in zone III is provided with a light emitting surface 27 in zone III.
  • the front end of the condensing cup extension 25 is integrally connected with the light channel 26 in the zone III to form the zone III structure.
  • a small part of the light guided by the condenser cup at the cutoff can enter the condenser cup extension 25, transmit through the light channel 26 in zone III, and exit through the light-emitting surface 27 in zone III to form low beam zone III light.
  • the low beam zone III light is used for vehicle drivers to identify road signs.
  • the optical device for a vehicle lamp of the present invention further includes a lens portion 5 .
  • the lens part 5 includes a lens light incident surface 51 and a lens light exit surface 52 , and both the first light exit part 13 and the second light exit part 23 are integrally connected with the lens light entrance surface 51 .
  • the light introduced by the first light incident part 11 directly enters the lens part 5 through the first light exit part 13 , and is refracted by the lens part 5 and then exits through the lens light exit surface 52 to form a first illumination area;
  • the light directly enters the lens portion 5 through the second light emitting portion 23 , and is refracted by the lens portion 5 and then exits through the lens light emitting surface 52 to form a second illumination area.
  • the lens portion 5 is provided in the optical device for a vehicle lamp of the present invention, the lens portion 5 can act as a condensing optical element to project the light emitted by the first light emitting portion 13 and the second light emitting portion 23 to form an illuminating light shape.
  • the converging optical element independently arranged in the vehicle lamp is omitted, which simplifies the structure of the vehicle lamp.
  • the lens portion 5 is integrally connected with other components of the optical device for a vehicle lamp, the mutual positional stability is higher, and the formed illumination area is also more stable.
  • the light incident surface 51 of the lens is greater than the sum of the first light emitting portion 13 and the second light emitting portion 23 , and the first light emitting portion 13 and the The second light emitting portion 23 is integrally connected to the upper portion of the light incident surface 51 of the lens.
  • the height of the light incident surface 51 of the lens is greater than the sum of the heights of the first light emitting part 13 and the second light emitting part 23 , and the upper part of the light incident surface 51 of the lens coincides with the first light emitting part 13 and the second light emitting part 23 , only Formed as a virtual surface, the solid surface of the lower part of the lens light incident surface 51 is preserved.
  • the light incident surface 51 can also enter light through the remaining part of the lens, so that a part of the lens part 5 of the optical device for a vehicle lamp of the present invention can also be used as a common lens to realize other lighting functions. In this way, the structure of the lamp can be further simplified while realizing more functions.
  • the first light guide body 1 is a PC light guide body or a PMMA light guide body
  • the second light guide body 2 is a silica gel light guide body.
  • the refractive indices of PC and PMMA are both greater than those of silica gel.
  • the light transmitted in the PC or PMMA light guide body irradiates the interface between the PC light guide body and the silica gel light guide body or the separation between the PMMA light guide body and the silica gel light guide body.
  • Total reflection can be generated at the interface, and the light transmitted in the silicone light guide will not produce total reflection when it irradiates the interface between the PC light guide and the silicone light guide or the interface between the PMMA light guide and the silicone light guide .
  • the temperature resistance of silica gel is better, and it is more able to withstand the higher temperature generated by the light source.
  • the automotive lighting device of the present invention adopts the optical device for a vehicle lamp of any embodiment of the present invention.
  • FIGS. 31 to 33 An embodiment of the automotive lighting device of the present invention is shown in FIGS. 31 to 33 , including a light source module 6 , an optical device for a vehicle lamp of the present invention, and a lens 7 .
  • the automotive lighting device of the present invention includes a first light incident portion 11 , a first light passing portion 12 , a first light exit portion 13 , a second light incident portion 21 , a second light passing portion 22 and a second light exit portion 23 .
  • the light part 11 , the first light passing part 12 and the first light exit part 13 are all made of the first light guide body 1
  • the second light incident part 21 , the second light passing part 22 and the second light exit part 23 are all made of the second light guide body 1 .
  • the light guide body 2 is made.
  • the first light incident portion 11 , the first light passing portion 12 and the first light exit portion 13 are connected in parallel with the second light incident portion 21 , the second light passing portion 22 and the second light exit portion 23 , respectively.
  • the first light incident portion 11 is provided with a plurality of widening condensing cups
  • the second light incident portion 21 is provided with a left-hand drive cut-off portion condensing cup 211 and a right-hand drive cut-off portion condensing cup 212
  • a left-hand drive cut-off portion condensing cup 211 and the lower side of the right-hand drive cut-off portion concentrator cup 212 both extend forward to form condensing cup extension portions 25 respectively.
  • the front end of the second light-passing portion 22 is provided with a light-emitting surface 27 in zone III, and a cut-off line structure 24 is provided on the lower side of the second light-passing portion 22 .
  • the position on the light source module 6 corresponding to the light entrance of the widening condenser cup is provided with the same number of low beam widening light sources 61 as the widening condenser cup.
  • a left-hand drive cut-off portion light source 621 is provided, and a right-hand drive cut-off portion light source 622 is provided at a position corresponding to the right-hand drive cut-off portion condensing cup 212 .
  • a lens 7 is disposed in front of the first light emitting portion 13 and the second light emitting portion 23 .
  • each low beam broadening light source 61 When the low beam broadening light source 61 is turned on, the light emitted by each low beam broadening light source 61 is introduced by the corresponding broadening concentrating cup, transmitted through the first light passing part 12 , emitted through the first light emitting part 13 , and projected through the lens 7 , forming a broadened illumination area 41 as shown in FIG. 18 and FIG. 19 .
  • the light emitted by the light source of the left-hand drive cut-off part 621 is introduced by the condenser cup 211 of the left-hand drive cut-off part, transmitted through the second light passing part 22, emitted through the second light emitting part 23, and passed through the lens 7 projection to form the left-hand drive cut-off portion lighting area 421 as shown in FIG. 18 .
  • a small part of the light rays introduced by the condenser cup 211 of the left-hand drive cut-off part pass through the condenser cup extension 25, enter the light channel 26 in the area III, and exit through the light emitting surface 27 in the area III.
  • the light emitted by the right-hand drive cut-off light source 622 is introduced into the right-hand drive cut-off condenser cup 212 , transmitted through the second light-passing portion 22 , emitted through the second light-emitting portion 23 , and passed through the lens 7 , forming the right-hand drive cut-off portion lighting area 422 as shown in FIG. 19 .
  • a small part of the light rays introduced by the condenser cup 212 of the right-hand drive cut-off portion pass through the condenser cup extension 25, enter the light channel 26 in the III region, and exit through the III light exit surface 27, and are projected by the lens 7 to form the low beam III region light.
  • the vehicle lighting device of this embodiment uses one optical device for vehicle lights to form three different lighting areas, and has a more compact structure. And it can prevent the light emitted by the low beam broadening light source 61 from entering the second light passing portion 22, interfering with the light distribution pattern of the low beam cutoff portion illumination area 42, and affecting the clarity of the light and dark cutoff lines.
  • the first light guide body 1 and the second light guide body 2 can respectively form a light channel, and the first light guide body 1 and the second light guide body 2 are connected in parallel, so that the The structure of the optical device for the vehicle lamp is more compact, and the volume can be designed to be smaller.
  • the setting of the cut-off line structure 24 can form a light-dark cut-off line of the low beam illumination light shape.
  • the refractive index of the first light guide body 1 is greater than the refractive index of the second light guide body 2, which can prevent the light in the first light guide body from entering the light channel of the second light guide body and interfere with the light channel of the second light guide body.
  • the light distribution pattern formed by the light in the second light guide body, and part of the light in the second light guide body can enter the second light guide body, forming the overlapping part between the illumination areas formed by the light in the two light channels, preventing the two Illuminated dark areas appear between illuminated areas.
  • the first light guiding body 1 is used to form the first light passing portion 12
  • the second light guiding body is used to form the second light passing portion 22. Different light channels formed by the light passing portion 12 and the second light passing portion 22 .
  • a plurality of widening condensing cups are provided on the first light passing portion 11 , and a left-hand drive cut-off portion concentrator cup 211 and a right-hand drive cut-off portion concentrator cup 212 are respectively provided on the second light incident portion 21 , and are arranged at opposite positions in the middle.
  • the cut-off line structure 24 can be used to form the light shape of left-hand driving low-beam lighting and the right-hand driving low-beam lighting light shape respectively through the optical device for vehicle lights, and can conveniently switch the light shape of left-hand driving low-beam lighting by controlling the corresponding light source .
  • the automotive lighting device of the present invention adopts the optical device for a vehicle lamp of the present invention, which can form different lighting areas, has a more compact structure, and has less light interference between different lighting areas.
  • the automotive lighting device using the preferred embodiments of the optical device for vehicle lamps of the present invention also has the advantages of the preferred embodiments.
  • the automobile of the present invention using the automobile lighting device of any embodiment of the present invention, also has the above advantages.
  • description with reference to the terms “one embodiment”, “some embodiments”, “an embodiment”, etc. means that a particular feature, structure, material or characteristic described in connection with the embodiment or example includes in at least one embodiment or example of the present invention.
  • schematic representations of the above terms do not necessarily refer to the same embodiment or example.
  • the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

车灯用光学装置，包括由第一导光体（1）和第二导光体（2）一体成型的导光部，导光部中的第一导光体（1）和第二导光体（2）并列设置，第一导光体（1）和第二导光体（2）之间形成材料分界面（3），第二导光体（2）中设置有截止线结构（24），第一导光体（1）的折射率大于第二导光体（2）的折射率，以使得在第一导光体（1）中传输的光线照射到材料分界面（3）上时能够在材料分界面（3）形成全反射，而在第二导光体（2）中传输的光线照射到材料分界面（3）上时能够通过材料分界面（3）进入第一导光体（1）中。该车灯用光学装置结构紧凑，不同光通道中的光线走向可控。还公开了一种汽车照明装置和一种汽车。

Description

车灯用光学装置、汽车照明装置及汽车
相关申请的交叉引用
本申请要求2020年11月16日提交的中国专利申请202011280850.3的权益，该申请的内容通过引用被合并于本申请。
技术领域
本发明涉及车灯，具体地，涉及一种车灯用光学装置。本发明还涉及一种汽车照明装置和一种汽车。
背景技术
在不同国家和地区使用的车辆，存在左驾和右驾的不同。因为左驾和右驾的区别，不同国家和地区的法规对车灯的要求也不一致，这种区别体现在近光截止线上时，左驾车辆的近光截止线形状右高左低，而右驾车辆的近光截止线形状左高右低。随着汽车工业和国际经济的发展，汽车行业的国际化程度日益增强，车灯作为汽车的照明装置，是汽车目前以及未来一段时间不可或缺的重要零部件。为了满足国际市场的需求，汽车照明装置需满足不同国家和地区的照明需求。
为了实现左驾和右驾的前照灯功能，通常是针对不同国家或地区的不同需求，进行设计不同的左驾前照灯或右驾前照灯，因为左驾前照灯只能应用于左驾市场，而右驾前照灯只能应用于右驾市场，这就导致了产品的通用性较差。而在将左驾和右驾集成在一个前照灯中，通常通过遮光板、转轴和电磁阀等转动机构的旋转实现光形切换，这样的光形切换方式的噪音大、造型灵活性低、系统构成较复杂。
近来也出现了一种设置相互独立的辅助近光模块和主近光模块，由辅助近光模块形成近光展宽照明，主近光模块形成左驾截止区照明或者右驾截止区照明，两者相互组合形成左驾照明光形或者右驾照明光形的技术。但该技术中的辅助近光模块和主近光模块通常分别设置，使得车灯的体积较大，难以满足当今车灯小型化的要求。而且，如果将近光展宽照明的光学元件与左右驾截止区照明的光学元件设置为紧贴在一起，近光展宽照明的光学元件中的光线会有部分进入截止区照明的光学元件中，对截止区照明形成了不良影响。
发明内容
本发明所要解决的技术问题是提供一种车灯用光学装置，该车灯用光学装置结构紧凑，不同光通道中的光线走向可控。
本发明进一步所要解决的技术问题是提供一种汽车照明装置，该汽车照明装置结构紧凑，照明光形明暗截止线清晰。
本发明还要解决的技术问题是提供一种汽车，该汽车的照明光形清晰、稳定。
为了解决上述技术问题，本发明一方面提供了车灯用光学装置，包括由第一导光体和第二导光体一体成型的导光部，所述导光部中的所述第一导光体和第二导光体并列设置，所述第一导光体和所述第二导光体之间形成材料分界面，所述第二导光体中设置有截止线结构，所述第一导光体的折射率大于所述第二导光体的折射率，以使得在所述第一导光体中传输的光线照射到所述材料分界面上时能够在所述材料分界面形成全反射，而在所述第二导光体中传输的光线照射到所述材料分界面上时能够通过所述材料分界面进入所述第一导光体中。
优选地，本发明的车灯用光学装置包括依次连接的第一入光部、第一通光部和第一出光部构成的第一光通道，以及依次连接的第二入光部、第二通光部和第二出光部构成的第二光通道，所述第一通光部与所述第二通光部构成所述导光部，且所述第一通光部位于所述第二通光部的上侧，所述第一通光部由所述第一导光体成型，所述第二通光部由所述第二导光体成型，所述第一通光部与所述第二通光部之间的分界面形成为所述材料分界面，所述第二通光部中形成有所述截止线结构。通过该优选技术方案，光线从第一入光部进入，经过第一通光部的传输，从第一出光部射出后，能够形成一个照明区域；从第二入光部进入，经过第二通光部的传输，从第二出光部射出后，能够形成为另一个带有明暗截止线的照明区域。经第一通光部传输的光线能够在第一通光部与第二通光部的材料分界面处产出全反射，无法进入第二通光部，一方面形成了照明区域的上边界，另一方面能够防止在第一通光部中传输的光线进入第二通光部，影响另一个照明区域中的明暗截止线；而经第二通光部传输的部分光线能够通过第一通光部与第二通光部的材料分界面，进入第一通光部，并经过第一出光部射出，以使两个照明区域形成部分重叠，避免在两个照明区域之间出现暗区。
进一步优选地，所述第一入光部由所述第一导光体成型，所述第二入光部由所述第二导光体成型。通过该优选技术方案，由第一入光部和第一通光部形成的光通道由同一种导光体成型，由第二入光部和第二通光部形成的光通道也由同一种导光体成型，能够减少本发明的车灯用光学装置的成型工序，提高加工的方便性。
优选地，所述第一入光部和所述第二入光部均由所述第一导光体成型。在该优选技术方案中，入光部的结构较为复杂，由同一种导光体成型的第一入光部和第二入光部能够一次加工成型，加工较为方便，制造成本也更低。
作为一种优选方案，所述第一入光部和所述第二入光部均由所述第二导光体成型。在该优选技术方案中，第一入光部和第二入光部同样由同一种导光体加工成型，加工较为方便。
优选地，所述第一入光部包括多个展宽聚光杯，所述展宽聚光杯适于导入光源发出的光线， 并通过所述第一出光部射出，以能够形成近光展宽照明区；所述第二入光部包括截止部聚光杯，所述截止部聚光杯适于导入光源发出的光线，经所述截止线形成结构的遮挡后射出，以能够形成近光截止部照明区；所述近光展宽照明区与所述近光截止部照明区相组合，形成近光照明光形。在该优选技术方案中，由于在第一通光部中传输的光线不能通过第一通光部与第二通光部之间的材料分界面，从而形成了与材料分界面相对应的近光展宽照明区的上边界，同时避免了第一通光部中传输的光线进入第二通光部中，照射到近光截止部照明区，影响近光照明光形的明暗截止线。另一方面，在第二通光部中传输的光线中的一部分能够通过材料分界面进入第一通光部，形成近光截止部照明区和近光展宽照明区的部分重叠，使得近光截止部照明区和近光展宽照明区之间衔接良好。因而，所形成的近光照明光形明暗截止线更清晰，避免了近光截止部照明区和近光展宽照明区之间出现衔接暗区。
进一步优选地，所述截止部聚光杯包括左驾截止部聚光杯和右驾截止部聚光杯，所述左驾截止部聚光杯导入的光线经所述截止线结构的遮挡后通过所述第二出光部射出，能够形成左驾截止部照明区；所述右驾截止部聚光杯导入的光线经所述截止线形成结构的遮挡后通过所述第二出光部射出，能够形成右驾截止部照明区。在该优选技术方案中，通过对与左驾截止部聚光杯和右驾截止部聚光杯相对应的光源的控制，就能够分别形成左驾截止部照明区和右驾截止部照明区，并与近光展宽照明区相组合，分别形成左驾近光照明光形和右驾近光照明光形，方便地完成左、右驾近光照明光形的切换。
优选地，本发明的车灯用光学装置还包括Ⅲ区结构，所述Ⅲ区结构包括一体连接的聚光杯延伸部、Ⅲ区光通道和Ⅲ区出光面，所述聚光杯延伸部连接在所述截止部聚光杯的下侧，所述聚光杯延伸部连接在所述第二通光部的下侧，所述Ⅲ区出光面位于所述Ⅲ区光通道的前端，所述截止部聚光杯导入光线的一部分能够进入所述聚光杯延伸部，经过Ⅲ区光通道，并由Ⅲ区出光面射出，形成近光Ⅲ区光线。通过该优选技术方案，能够利用截止部照明光源发出的少量光线形成近光Ⅲ区光线，形成对道路标记牌的照射。
优选地，本发明的车灯用光学装置还包括透镜部，所述透镜部包括透镜入光面和透镜出光面，所述第一出光部和所述第二出光部与所述透镜入光面一体连接。通过该优选技术方案，本发明的车灯用光学装置还具有普通透镜的功能，即不需要设置独立的透镜即可形成照明光形，因而能够精简车灯的结构，减小车灯的体积，提高车灯结构的稳定性。
进一步优选地，所述透镜入光面大于所述第一出光部和所述第二出光部的和，所述第一出光部和所述第二出光部一体连接在所述透镜入光面的一侧。在该优选技术方案中，透镜入光面除了与第一出光部和第二出光部连接的部分外，还在连接部分外保留有部分透镜入光面，能够通过该部分透镜入光面接受其它入射光线，使得透镜部分还能够用于实现其它照明功能。
作为一种优选技术方案，所述第一导光体为PC导光体或者PMMA导光体，所述第二导光 体为硅胶导光体。在该优选技术方案中，PC导光体是指PC材料的导光体，PMMA导光体是指PMMA材料的导光体，硅胶导光体是指硅胶材料的导光体。PC或者PMMA材料的导光体折射率较高，硅胶材料的导光体折射率较低，能够分别作为第一导光体和第二导光体。另外，硅胶材料具有较高的耐温性能，能够防止导光体因温度的上升而产生变形或者导光性能的改变。
本发明第二方面提供了一种汽车照明装置，该汽车照明装置使用了本发明第一方面所提供的车灯用光学装置。
本发明第三方面提供了一种汽车，该汽车使用了本发明第二方面所提供的汽车照明装置。
通过上述技术方案，本发明的车灯用光学装置，由第一导光体和第二导光体并列设置形成的导光部，第一导光体和第二导光体能够分别形成供光线通过的光通道，两个光通道能够分别形成两个不同的照明区域；其中，第二光通道中的截止线结构能够形成带有明暗截止线的照明区域。第一导光体和第二导光体一体成型为包含两个光通道的导光部，减小了车灯用光学装置的体积。第一导光体的折射率大于第二导光体的折射率，使得在第一导光体中传输的光线能够在第一导光体和第二导光体之间形成的材料分界面产生全反射，因此能够防止在第一导光体中传输的光线通过材料分界面进入第二导光体中；而在第二导光体中传输的光线不会在材料分界面形成全反射，因而部分光线能够通过材料分界面进入第一导光体。本发明的车灯用光学装置，并列设置的不同光通道紧密贴合在一起，结构更加紧凑；能够防止第一导光体中的光线进入第二导光体，影响第二导光体中的光线所形成照明区域的照明光形，同时，第二导光体中的光线能够部分进入第一导光体，形成第一导光体中的光线所形成的照明区域和第二导光体中的光线所形成照明区域之间的重叠部分，防止在两个照明区域之间形成暗区。本发明的汽车照明装置，能够以更小的体积形成不同的照明区域，且照明光形清晰，两个照明区域之间的衔接好。本发明的汽车由于使用了本发明的汽车照明装置，也具有上述优点。
有关本发明的其它技术特征和技术效果，将在下文的具体实施方式中进一步说明。
附图说明
图1是本发明的车灯用光学装置一个实施例的立体图；
图2是图1另一个视角的立体图；
图3是图1另一个视角的立体图；
图4是图1的俯视图；
图5是图4的A-A方位剖面示意图；
图6是图1所示的车灯用光学装置的光路示意图；
图7是本发明的车灯用光学装置另一个实施例的立体图；
图8是图7的俯视图；
图9是图8的B-B方位剖面示意图；
图10是本发明的车灯用光学装置另一个实施例的立体图；
图11是图10的俯视图；
图12是图11的C-C方位剖面示意图；
图13是图1中第二光通道部分示意图；
图14是本发明的车灯用光学装置另一个实施例的立体图；
图15是图14中第二光通道部分示意图；
图16是图15的俯视图；
图17是图16的D-D方位剖面示意图；
图18是本发明的车灯用光学装置一个实施例所形成的左驾近光照明光形示意图；
图19是本发明的车灯用光学装置一个实施例所形成的右驾近光照明光形示意图；
图20是本发明的车灯用光学装置另一个实施例的立体图；
图21是图20另一个视角的立体图；
图22是图20的俯视图；
图23是图22的E-E方位剖面示意图；
图24是图20所示的车灯用光学装置的Ⅲ区光路示意图；
图25是本发明的车灯用光学装置另一个实施例的立体图；
图26是图25另一个视角的立体图；
图27是图25的俯视图；
图28是图27的F-F方位剖面示意图；
图29是本发明的车灯用光学装置另一个实施例的剖面示意图；
图30是本发明的车灯用光学装置又一个实施例的剖面示意图；
图31是本发明的汽车照明装置一个实施例的结构示意图；
图32是图31的俯视图；
图33是图32的G-G方位剖面示意图。
附图标记说明
1          第一导光体                11         第一入光部
12         第一通光部                13         第一出光部
2          第二导光体                21         第二入光部
211        左驾截止部聚光器          212        右驾截止部聚光器
22         第二通光部                23         第二出光部
24         截止线结构                241        截止斜面
242        截止顶槽                  25         聚光杯延伸部
26         Ⅲ区光通道                27         Ⅲ区出光部
3          材料分界面                41         近光展宽照明区
42         近光截止部照明区          421        左驾截止部照明区
422        右驾截止部照明区          5          透镜部
51         透镜入光面                52         透镜出光面
6          光源模块                  61         近光展宽光源
62         近光截止部光源            621        左驾截止部光源
622        右驾截止部光源            7          透镜
具体实施方式
在本发明中，在未作相反说明的情况下，使用的方位词如“前、后、上、下、左、右”所指示的方位或位置关系是基于本发明的汽车照明装置正常安装在车辆上后的方位或位置关系。其中，方位词“前”所指示的方向为汽车照明装置的出光面所朝向的方向。对本发明的车灯光学元件和车灯模组及其零部件的方位或位置关系的描述与其实际使用中的安装方位一致。
术语“第一”、“第二”仅用于描述的目的，而不能理解为指示或暗示相对重要性或隐含指明所指示的技术特征的数量，因此，限定有“第一”、“第二”的特征可以明示或隐含地包括一个或更多个所述特征。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“设置”或“连接”应做广义理解，例如，术语“连接”可以是固定连接，也可以是可拆卸连接，或者是一体连接；可以是直接连接，也可以是通过中间媒介间接连接，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面结合附图对本发明的具体实施方式进行详细说明，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，本发明的保护范围并不局限于下述的具体实施方式。
如图1-图12所示，本发明的车灯用光学装置的一个实施例，包括用于传导车灯光线的导光部，导光部由第一导光体1和第二导光体2一体成型。具体地，第一导光体1和第二导光体2可以通过嵌体注塑或者双色注塑一体成型。其中，第一导光体1和第二导光体2相互并列设置。在本发明中，第一导光体1和第二导光体2的并列设置是相对于光线的传导方向而言，也就是说，第一导光体1和第二导光体2在与光线传导方向相垂直的方向上相互连接。在第一导光体1和第二导光体2相接触的部分形成材料分界面3，材料分界面3与光线传导方向平行，或者成一个较 小的夹角。第二导光体2中设置有截止线结构24，截止线结构24能够对从第二导光体中经过的光线形成遮挡，形成光线的明暗边界。第一导光体1和第二导光体2为不同材料的导光体，其中，第一导光体1的折射率大于第二导光体2的折射率，这样，在第一导光体1中传输的光线照射到材料分界面3上时能够形成全反射而反射回第一导光体1，从而使得在第一导光体1中传输的光线不能进入第二导光体2；而在第二导光体2中传输的光线照射到材料分界面3上时则不会产生全反射，其中的部分光线能够在材料分界面3发生折射而进入到第一导光体1中。
在本发明的车灯用光学装置的一些实施例中，如图1-图17所示，本发明的车灯用光学装置包括第一入光部11、第一通光部12、第一出光部13、第二入光部21、第二通光部22和第二出光部23。第一入光部11、第一通光部12和第一出光部13依次连接为一体，形成了第一光通道。光线能够从第一入光部11进入第一光通道，经过第一通光部12的传输，从第一出光部13射出。该部分光线能够经过汇聚光学元件的投射，形成第一照明区域。汇聚光学元件可以是车灯中独立的元件，如透镜，也可以是光学装置上附属的聚光结构。第二入光部21、第二通光部22和第二出光部23依次连接为一体，形成了第二光通道。第二通光部22中形成有截止线结构24，截止线结构24设置在第二通光部22的下侧，具有与近光光形的明暗截止线的形状相对应的边界。光线能够从第二入光部21进入第二光通道，经过第二通光部22的传输，被截止线结构24遮挡后，从第二出光部23射出。该部分光线能够经过汇聚光学元件的投射，形成具有明暗截止线的第二照明区域。其中，第一通光部12一体连接在第二通光部22的上侧，构成了导光部，并且，第一通光部12由第一导光体1成型，第二通光部22由第二导光体2成型，第一通光部12与第二通光部22之间的分界面形成了材料分界面3。这样，从第一通光部12传输的光线照射到材料分界面3时会产生全反射，防止第一通光部12中的光线进入第二通光部22，一方面形成了第一照明区域的清晰的上边界，另一方面能够防止第一通光部12中的光线照射到第二照明区域，影响第二照明区域中明暗截止线的清晰度。而从第二通光部22传输的光线照射到材料分界面3时，其中的部分光线能够在材料分界面3发生折射进入第一通光部12，并从第一出光部13射出，经过汇聚光学元件的投射后，形成第一照明区域与第二照明区域之间的重叠部分，防止在第一照明区域与第二照明区域之间形成暗区。第一入光部11和第二入光部21带有入光结构，入光结构可以是聚光杯，也可以是入光面为平面、凹面或者凸面的其它入光结构；第一入光部11和第二入光部21的入光结构可以相同，也可以不同。入光结构能够更好地导入光源发出的光线。第一出光部13和第二出光部23可以是带有出光面的出光结构，也可以就是相应的通光部前端的出光面。出光面的形状可以根据照明区域的需要自由设计，可以为平面、柱面、凹面、凸面或者自由曲面，第一出光部13和第二出光部23的形状可以相同，也可以不相同。
在本发明的车灯用光学装置的一些实施例中，如图1-图6所示，第一入光部11、第一通光部12和第一出光部13均由第一导光体1制成，第二入光部21、第二通光部22和第二出光部23 均由第二导光体2制成，整个车灯用光学装置一体成型。这样，第一入光部11、第一通光部12和第一出光部13由同一种材料制成，第一入光部11、第一通光部12和第一出光部13之间没有分界面；第二入光部21、第二通光部22和第二出光部23也由同一种材料制成，第二入光部21、第二通光部22和第二出光部23之间也没有分界面。这样，光线通过相应的光通道时不会因分界面而产生反射，光通道的光效较高。
作为本发明的车灯用光学装置的一种具体实施方式，如图7-图9所示，第一入光部11、第二入光部21、第一通光部12和第一出光部13均由第一导光体1制成，第二通光部22和第二出光部23由第二导光体2制成，整个车灯用光学装置一体成型。由于入光部的结构通常比较复杂，第一入光部11和第二入光部21由同一种材料制成，第一入光部11和第二入光部21就可以一次注塑成型，简化了本发明的车灯用光学装置的加工工艺，降低了加工成本。
作为本发明的车灯用光学装置的一种具体实施方式，如图10-图12所示，第一入光部11、第二入光部21、第二通光部22和第二出光部23均由第二导光体2制成，第一通光部12和第一出光部13由第一导光体1制成。同样，由于第一入光部11和第二入光部21由同一种材料制成，第一入光部11和第二入光部21可以一次注塑成型，简化了本发明的车灯用光学装置的加工工艺。另外，第二导光体2可以选用折射率较低的硅胶，硅胶的耐温性能较好，而入光部距离光源较近，使用硅胶材料能够防止第一入光部11和第二入光部21在较高的工作温度下发生变形或者老化，能够保障出射光形的稳定性并延长该车灯用光学装置的使用寿命。
在本发明的车灯用光学装置的一些实施例中，如图1-图12所示，第一入光部11包括多个展宽聚光杯，多个展宽聚光杯能够与多个发光光源一一对应，能够将多个发光光源发出的光线导入本发明的车灯用光学装置，经过第一通光部12的传输，通过第一出光部13射出，经过汇聚光学元件的投射后形成的第一照明区域为如图18、图19所示的近光展宽照明区41。第二入光部21包括截止部聚光杯，第二通光部22上设置有截止线结构24。截止线结构24可以是设置在第二通光部22下侧的具有设定形状的凹陷，也可以是设置在第二通光部22内部的遮光件。截止线结构24具有与所要求的明暗截止线的形状相对应的边缘，能够对通过第二通光部22的光线进行遮挡，形成第二照明区域的明暗截止线。截止部聚光杯能够导入相应的光源发出的光线，光线经过第二通光部22传输时，截止线结构24对通过的光线进行遮挡，遮挡后的光线通过第二出光部23射出，经过汇聚光学元件的投射后形成的第二照明区域为如图18、图19所示的具有明暗截止线的近光截止部照明区42。近光展宽照明区41与近光截止部照明区42相组合，形成具有明暗截止线的近光照明光形。
在本发明的车灯用光学装置的一些实施例中，如图1-图17所示，截止部聚光杯包括左驾截止部聚光杯211和右驾截止部聚光杯212，左驾截止部聚光杯211和右驾截止部聚光杯212能够分别与左驾截止部光源和右驾截止部光源相对应。截止线结构24设置在相对于左驾截止部聚光 杯211和右驾截止部聚光杯212之间的位置，截止线结构24可以为设置在第二通光部22中部的上下贯穿第二通光部22的凹陷，截止线结构24的左右两侧分别形成为截止斜面241，截止线结构24顶部形成为第二通光部22上侧的截止顶槽242。截止线结构24的前端可以局限于第二通光部22的内部，也可以向前贯穿第二出光部23，将出光部分为左右两个部分。左右两侧的截止斜面241的设置分别与所要求的左驾明暗截止线和右驾明暗截止线的形状相对应，通过左驾截止部聚光杯211导入的光线经过截止线结构24的遮挡后通过第二出光部23射出，经过汇聚光学元件的投射后能够形成如图18所示的左驾截止部照明区421；通过右驾截止部聚光杯212导入的光线经过截止线结构24的遮挡后通过第二出光部23射出，经过汇聚光学元件的投射后能够形成如图19所示的右驾截止部照明区422。左驾截止部照明区421与近光展宽照明区41相组合，形成左驾近光照明光形，右驾截止部照明区422与近光展宽照明区41相组合，形成右驾近光照明光形。截止线结构24的顶部贯穿第二通光部22能够使得通过左驾截止部聚光杯211导入的光线和通过右驾截止部聚光杯212导入的光线分别局限于各自对应的第二通光部22区域，保证左、右驾近光照明光形的清晰度和照明范围，从而保障行驶安全。
作为本发明的车灯用光学装置的一种具体实施方式，如图20-图24所示，第二入光部21的截止部聚光杯的下侧向前延伸，形成了聚光杯延伸部25，第二通光部22下侧的后部设置有Ⅲ区光通道26，Ⅲ区光通道26的前端设置有Ⅲ区出光面27。聚光杯延伸部25的前端与Ⅲ区光通道26一体连接，形成了Ⅲ区结构。截止部聚光杯导入光线中的一小部分能够进入聚光杯延伸部25，经过Ⅲ区光通道26的传输，通过Ⅲ区出光面27射出，形成近光Ⅲ区光线。近光Ⅲ区光线供车辆驾驶人辨识道路的标记牌用。
在本发明的车灯用光学装置的一些实施例中，如图25-图30所示，本发明的车灯用光学装置还包括透镜部5。透镜部5包括透镜入光面51和透镜出光面52，第一出光部13和第二出光部23均与透镜入光面51一体连接。经第一入光部11导入的光线经第一出光部13直接进入透镜部5，经过透镜部5的折射后通过透镜出光面52射出，形成第一照明区域；经第二入光部21导入的光线经第二出光部23直接进入透镜部5，经过透镜部5的折射后通过透镜出光面52射出，形成第二照明区域。由于本发明的车灯用光学装置中设置了透镜部5，透镜部5能够作为汇聚光学元件对通过第一出光部13和第二出光部23射出的光线进行投射，形成照明光形，因而能够省略车灯中独立设置的汇聚光学元件，简化了车灯的结构。同时，由于透镜部5与车灯用光学装置的其它部件一体连接，相互之间的位置稳定性更高，所形成的照明区域也更加稳定。
在本发明的车灯用光学装置的一些实施例中，如图25-图30所示，透镜入光面51大于第一出光部13和第二出光部23的和，第一出光部13和第二出光部23一体连接在透镜入光面51的上部。也就是说，透镜入光面51的高度大于第一出光部13和第二出光部23的高度和，透镜入光面51的上部与第一出光部13和第二出光部23相重合，仅形成为一个虚拟的面，透镜入光面 51的下部的实体面得以保留。通过保留的部分透镜入光面51还能够射入光线，使得本发明的车灯用光学装置的透镜部5的一部分还可以当普通透镜来使用，用于实现其它照明功能。这样可以在实现更多功能的同时进一步简化车灯的结构。
作为本发明的车灯用光学装置的一种具体实施方式，第一导光体1为PC导光体或者为PMMA导光体，第二导光体2为硅胶导光体。PC和PMMA的折射率均大于硅胶的折射率，在PC或者PMMA导光体中传输的光线照射到PC导光体与硅胶导光体的分界面或者PMMA导光体与硅胶导光体的分界面时能够产生全反射，在硅胶导光体中传输的光线照射到PC导光体与硅胶导光体的分界面或者PMMA导光体与硅胶导光体的分界面时则不会产生全反射。而硅胶的耐温性能更好，更能够耐受光源产生的较高的温度。
本发明的汽车照明装置，采用了本发明任一实施例的车灯用光学装置。
本发明的汽车照明装置的一个实施例如图31-图33所示，包括光源模块6、本发明的车灯用光学装置和透镜7。本发明的汽车照明装置包括第一入光部11、第一通光部12、第一出光部13、第二入光部21、第二通光部22和第二出光部23，第一入光部11、第一通光部12和第一出光部13均由第一导光体1制成，第二入光部21、第二通光部22和第二出光部23均由第二导光体2制成。第一入光部11、第一通光部12和第一出光部13分别与第二入光部21、第二通光部22和第二出光部23并列连接在一起。第一入光部11上设置有多个展宽聚光杯，第二入光部21上设置有左驾截止部聚光杯211和右驾截止部聚光杯212，左驾截止部聚光杯211和右驾截止部聚光杯212的下侧均向前延伸，分别形成聚光杯延伸部25，聚光杯延伸部25的前方均与Ⅲ区光通道26相连接，Ⅲ区光通道26的前端设置有Ⅲ区出光面27，第二通光部22的下侧面上设置有截止线结构24。光源模块6上与展宽聚光杯的入光口相对应的位置设置有与展宽聚光杯数量相同的近光展宽光源61，光源模块6上与左驾截止部聚光杯211相对应的位置设置有左驾截止部光源621，与右驾截止部聚光杯212相对应的位置设置有右驾截止部光源622。第一出光部13和第二出光部23的前方设置有透镜7。当近光展宽光源61打开时，各近光展宽光源61发出的光线由相对应的展宽聚光杯导入，经过第一通光部12传输，通过第一出光部13射出，经过透镜7的投射，形成如图18、图19所示的展宽照明区41。当左驾截止部光源621打开时，左驾截止部光源621发出的光线由左驾截止部聚光杯211导入，经过第二通光部22传输，通过第二出光部23射出，经过透镜7的投射，形成如图18所示的左驾截止部照明区421。左驾截止部聚光杯211导入的少部分光线经过聚光杯延伸部25，进入Ⅲ区光通道26，并通过Ⅲ区出光面27射出，经过透镜7的投射，形成近光Ⅲ区光线。当右驾截止部光源622打开时，右驾截止部光源622发出的光线由右驾截止部聚光杯212导入，经过第二通光部22传输，通过第二出光部23射出，经过透镜7的投射，形成如图19所示的右驾截止部照明区422。右驾截止部聚光杯212导入的少部分光线经过聚光杯延伸部25，进入Ⅲ区光通道26，并通过Ⅲ区出光面27射出，经过透镜7 的投射，形成近光Ⅲ区光线。当近光展宽光源61和左驾截止部光源621同时打开时，如图18所示，展宽照明区41与左驾截止部照明区421相组合，形成左驾近光照明光形；当近光展宽光源61和右驾截止部光源622同时打开时，如图19所示，展宽照明区41与右驾截止部照明区422相组合，形成右驾近光照明光形。该实施例的汽车照明装置，使用一个车灯用光学装置形成了三个不同的照明区域，结构更加紧凑。并能够防止近光展宽光源61发出的光线进入第二通光部22，干扰近光截止部照明区42的配光图案，影响明暗截止线的清晰度。
本发明所提供的车灯用光学装置，第一导光体1和第二导光体2能够分别形成一个光通道，第一导光体1和第二导光体2并列连接在一起，使得车灯用光学装置的结构更加紧凑，体积可以设计得更小。截止线结构24的设置，能够形成近光照明光形的明暗截止线。第一导光体1的折射率大于第二导光体2的折射率，能够防止第一导光体中的光线进入第二导光体的光通道中，干扰第二导光体的光通道中的光线形成的配光图案，而第二导光体中的部分光线能够进入第二导光体中，形成两个光通道中的光线形成的照明区域之间的重叠部分，防止在两个照明区域之间出现照明暗区。在本发明的车灯用光学装置的优选实施例中，使用第一导光体1形成第一通光部12，使用第二导光体形成第二通光部22，能够形成分别由第一通光部12和第二通光部22形成的不同的光通道。在第一通光部11上设置多个展宽聚光杯，第二入光部21上分别设置左驾截止部聚光杯211和右驾截止部聚光杯212，并在其中间相对位置设置截止线结构24，能够通过该车灯用光学装置分别用于形成左驾近光照明光形和右驾近光照明光形，并能够通过对相应光源的控制方便地进行左右驾近光照明光形的切换。本发明的汽车照明装置，采用了本发明的车灯用光学装置，能够形成不同的照明区域，且结构更加紧凑，不同照明区域之间的光线干扰较小。采用本发明的车灯用光学装置优选实施例的汽车照明装置，也同时具有各优选实施例所具有的优点。
本发明的汽车，使用了本发明任一实施例的汽车照明装置，也具有上述优点。
在本发明的描述中，参考术语“一个实施例”、“一些实施例”、“一种具体实施方式”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本发明中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上结合附图详细描述了本发明的优选实施方式，但是，本发明并不限于此。在本发明的技术构思范围内，可以对本发明的技术方案进行多种简单变型，包括各个具体技术特征以任何合适的方式进行组合，为了避免不必要的重复，本发明对各种可能的组合方式不再另行说明。但这些简单变型和组合同样应当视为本发明所公开的内容，均属于本发明的保护范围。

Claims (13)

  1. 一种车灯用光学装置，其特征在于，包括由第一导光体(1)和第二导光体(2)一体成型的导光部，所述导光部中的所述第一导光体(1)和第二导光体(2)并列设置，所述第一导光体(1)和所述第二导光体(2)之间形成材料分界面(3)，所述第二导光体(2)中设置有截止线结构(24)，所述第一导光体(1)的折射率大于所述第二导光体(2)的折射率，以使得在所述第一导光体(1)中传输的光线照射到所述材料分界面(3)上时能够在所述材料分界面(3)形成全反射，而在所述第二导光体(2)中传输的光线照射到所述材料分界面(3)上时能够通过所述材料分界面(3)进入所述第一导光体(1)中。
  2. 根据权利要求1所述的车灯用光学装置，其特征在于，包括依次连接的第一入光部(11)、第一通光部(12)和第一出光部(13)构成的第一光通道，以及依次连接的第二入光部(21)、第二通光部(22)和第二出光部(23)构成的第二光通道，所述第一通光部(12)与所述第二通光部(22)构成所述导光部，且所述第一通光部(12)位于所述第二通光部(22)的上侧，所述第一通光部(12)由所述第一导光体(1)成型，所述第二通光部(22)由所述第二导光体(2)成型，所述第一通光部(12)与所述第二通光部(22)之间的分界面形成为所述材料分界面(3)，所述第二通光部(22)中形成有所述截止线结构(24)。
  3. 根据权利要求2所述的车灯用光学装置，其特征在于，所述第一入光部(11)由所述第一导光体(1)成型，所述第二入光部(21)所述第二导光体(2)成型。
  4. 根据权利要求2所述的车灯用光学装置，其特征在于，所述第一入光部(11)和所述第二入光部(21)均由所述第一导光体(1)成型。
  5. 根据权利要求2所述的车灯用光学装置，其特征在于，所述第一入光部(11)和所述第二入光部(21)均由所述第二导光体(2)成型。
  6. 根据权利要求2-5中任一项所述的车灯用光学装置，其特征在于，所述第一入光部(11)包括多个展宽聚光杯，所述展宽聚光杯适于导入光源发出的光线，并通过所述第一出光部(13)射出，以能够形成近光展宽照明区；所述第二入光部(21)包括截止部聚光杯，所述截止部聚光杯适于导入光源发出的光线，经所述截止线结构(24)的遮挡后射出，以能够形成近光截止部照明区；所述近光展宽照明区与所述近光截止部照明区相组合，形成近光照明光形。
  7. 根据权利要求6所述的车灯用光学装置，其特征在于，所述截止部聚光杯包括左驾截止部聚光杯(211)和右驾截止部聚光杯(212)，所述左驾截止部聚光杯(211)导入的光线经所述截止线结构(24)的遮挡后通过所述第二出光部(23)射出，能够形成左驾截止部照明区；所述右驾截止部聚光杯(212)导入的光线经所述截止线结构(24)的遮挡后通过所述第二出光部(23)射出，能够形成右驾截止部照明区。
  8. 根据权利要求6所述的车灯用光学装置，其特征在于，所述车灯用光学装置还包括Ⅲ区结构，所述Ⅲ区结构包括一体连接的聚光杯延伸部(25)、Ⅲ区光通道(26)和Ⅲ区出光面(27)，所述聚光杯延伸部(25)连接在所述截止部聚光杯的下侧，所述聚光杯延伸部(25)连接在所述第二通光部(22)的下侧，所述Ⅲ区出光面(27)位于所述Ⅲ区光通道(26)的前端，所述截止部聚光杯导入光线的一部分能够进入所述聚光杯延伸部(25)，经过Ⅲ区光通道(26)，并由Ⅲ区出光面(27)射出，形成近光Ⅲ区光线。
  9. 根据权利要求2-5中任一项所述的车灯用光学装置，其特征在于，还包括透镜部(5)，所述透镜部(5)包括透镜入光面(51)和透镜出光面(52)，所述第一出光部(13)和所述第二出光部(23)与所述透镜入光面(51)一体连接。
  10. 根据权利要求9所述的车灯用光学装置，其特征在于，所述透镜入光面(51)大于所述第一出光部(13)和所述第二出光部(23)的和，所述第一出光部(13)和所述第二出光部(23)一体连接在所述透镜入光面(41)的一侧。
  11. 根据权利要求2-5中任一项所述的车灯用光学装置，其特征在于，所述第一导光体(1)为PC导光体或者PMMA导光体，所述第二导光体(2)为硅胶导光体。
  12. 一种汽车照明装置，其特征在于，包括根据权利要求1至11中任一项所述的车灯用光学装置。
  13. 一种汽车，其特征在于，包括根据权利要求12所述的汽车照明装置。
PCT/CN2021/095811 2020-11-16 2021-05-25 车灯用光学装置、汽车照明装置及汽车 WO2022100057A1 (zh)

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