EP4137744B1 - Unité optique de lampe de véhicule, module de lampe de véhicule et véhicule - Google Patents

Unité optique de lampe de véhicule, module de lampe de véhicule et véhicule Download PDF

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Publication number
EP4137744B1
EP4137744B1 EP21832556.1A EP21832556A EP4137744B1 EP 4137744 B1 EP4137744 B1 EP 4137744B1 EP 21832556 A EP21832556 A EP 21832556A EP 4137744 B1 EP4137744 B1 EP 4137744B1
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EP
European Patent Office
Prior art keywords
light
light incident
vehicle lamp
low
emergent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP21832556.1A
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German (de)
English (en)
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EP4137744A4 (fr
EP4137744C0 (fr
EP4137744A1 (fr
Inventor
Shikun DONG
He ZHU
Maowei WEI
Fan Meng
Meng YAN
Zhengnan LIU
Wenhui SANG
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HASCO Vision Technology Co Ltd
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HASCO Vision Technology Co Ltd
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Publication date
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Publication of EP4137744A1 publication Critical patent/EP4137744A1/fr
Publication of EP4137744A4 publication Critical patent/EP4137744A4/fr
Application granted granted Critical
Publication of EP4137744B1 publication Critical patent/EP4137744B1/fr
Publication of EP4137744C0 publication Critical patent/EP4137744C0/fr
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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
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—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
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/322—Optical layout thereof the reflector using total internal reflection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • 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

Definitions

  • automobiles have become one of the indispensable means of transportation for people to travel.
  • the global retain number of automobiles is increasing year by year, and the popularity of automobiles has also driven the rapid development of the manufacture and design of automobile parts.
  • the role of automobile lamps is not only limited to illumination function, and the appearance modeling thereof and specific lighting effect modes for turning on or turning off vehicle lamps have begun to be pursued by consumers.
  • the third aspect of the present invention provides a vehicle, comprising a vehicle lamp module as described above.
  • the first light incident structure is configured to extend from a side in the up-down width direction of the light incident structure reference plane to the first light passage, the first light incident structure can guide light received thereby to be emerged towards the first light passage and be transmitted to the first light emergent surface along the first light passage, that is to say, a light source corresponding to the first light incident structure is provided on the upper side or the lower side of the light incident structure reference plane, wherein it can be effectively avoided that a light spot is produced in a situation where the light source is provided in the rear of the first optical element, and it is accordingly avoided that the vehicle lamp lightening effect shows, when viewing from the front of the vehicle lamp, a row of light spots, hereby improving the appearance visual effect of the vehicle lamp optical unit; moreover, the vehicle lamp optical unit can meet requirements for various vehicle lamp illumination modes and lightening modes.
  • connection may refer to fixed connection, or detachable connection, or integrated connection; it may refer to direct connection, or indirect connection via an intermediate, or inner communication between two elements or interactive relationship between two elements.
  • connection may refer to fixed connection, or detachable connection, or integrated connection; it may refer to direct connection, or indirect connection via an intermediate, or inner communication between two elements or interactive relationship between two elements.
  • a longitudinal transversal is a transversal obtained through interception of a first light emergent plane 12 by a vertical plane perpendicular to a vertical tangent plane of the first light emergent plane 12.
  • first and second are used merely for purpose of description, and cannot be construed as indicating or implying to have importance in relativity, or implicitly suggesting the number of the indicated technical feature. Therefore, a feature defined with a term “first” or “second” can explicitly or implicitly comprise one or more said feature.
  • front and rear refer to the forward and backward directions of a vehicle lamp optical unit along a light emergent direction, that is to say, the first light emergent surface 12 is located in the front, and a light incident structure reference plane 11 is located in the rear; terms “left” and “right” refer to the left and right direction of the vehicle lamp optical unit along the light emergent direction; and terms “upper” and “lower” refer to the upward and downward directions of the vehicle lamp optical unit along the light emergent direction.
  • the terms indicate orientation or position relationships shown based on the accompanying drawings, rather than indicating or implying that a specified device or element must have a certain orientation and be constructed and operated in a certain orientation, and therefore cannot be construed as limiting the present invention.
  • the vehicle lamp optical unit Through the vehicle lamp optical unit according to the above-mentioned basic technical solutions of the present invention, light rays received by the first light incident structure emerge towards the first light passage 13 after direction change from the upper side or the lower side of the light incident structure reference plane 11, and are transmitted to the first light emergent surface 12 along the first light passage 13, and in turn emerge from the first light emergent surface 12 and form a desired illumination light shape, wherein it can be effectively avoided that a light spot is produced when a light source (namely the light source 4 described below) corresponding to the first light incident structure is provided in the rear of the first optical element 1, and it is avoided that the vehicle lamp lightening effect shows, when viewing from the front of the vehicle lamp, a row of light spots, hereby improving the appearance visual effect of the vehicle lamp optical unit; moreover, the vehicle lamp optical unit can meet requirements for various vehicle lamp illumination modes and lightening modes.
  • a light source namely the light source 4 described below
  • each of the first light incident structures respectively comprises a collimator 113 located on the upper side or the lower side of the light incident structure reference plane 11, and a light guide portion 114 in connection with the collimator 113; the light guide portion 114 extends from the light emergent end of the collimator 113 to the rear end of the first light passage 13; the light guide portion 114 is provided with a reflecting portion 115; and the reflecting portion 115 is capable of reflecting the emergent light of the collimator 113 to a direction towards the first light passage 13 for emergence.
  • collimating elements may be adopted for the structure of the collimator 113.
  • it may be specifically configured as a collimating cup, which is provided with an inwardly recessed light source connection portion, and correspondingly, the opening of the light source connection portion faces up or faces down.
  • the reflecting portion 115 may be specifically configured as a reflecting plane or a reflecting curved surface, which is opposite to the light emergent end of the collimator 113 and has a certain inclined angle, that is to say, light rays received by the collimator 113 are emitted to the reflecting portion 115, reflected by the reflecting portion 115 and then emitted towards the first light passage 13, and transmitted to the first light emergent surface 12 through the first light passage 13.
  • a recess structure 131 corresponding to the light guide portion 114 is respectively provided at the connection between the first light passage 13 and each of the light guide portions 114, and referring to Figs. 10 and 11 and Figs.
  • each of the recess structures 131 respectively comprises a light guide portion connection surface 132 in connection with the light guide portion 114 corresponding to the recess structure 131, an intermediate connection surface 133 in connection with the light guide portion connection surface 132, and an light passage connection surface 134 in connection with the intermediate connection surface 133, wherein a first cut-off portion 135 forming a first light shape cut-off line is provided at the connection between the intermediate connection surface 133 and the light passage connection surface 134.
  • the first light shape cut-off line formed by the first cut-off portion 135 can be designed according to specific application situations of the first optical element 1, e.g., it may be an auxiliary low-beam cut-off line, or an auxiliary high-beam cut-off line.
  • the first light emergent surface 12 is preferably a curved surface protruding forwards, and may be configured as a single and smooth curved light emergent surface, hereby improving the aesthetics of the appearance of the vehicle lamp.
  • the first cut-off portion 135 is located on the median surface of the first light emergent surface 12, and the median surface is a horizontal plane passing through the vertex of a longitudinal transversal of the first light emergent surface 12, such that the first light shape cut-off line correspondingly formed by the first cut-off portion 135 is clearer and realizes a better light shape.
  • the first light emergent surface 12 is a curvature continuous curved surface, which improves the appearance and the light emerging effect of the first optical element 1.
  • the at least one first light incident structure according to the present invention may be specifically configured to have at least one low-beam first light incident structure 111, or have at least one high-beam first light incident structure 112, or have at least one low-beam first light incident structure 111 and at least one high-beam first light incident structure 112. There may be one, two, three or more low-beam first light incident structures 111 and/or high-beam first light incident structures 112, and the number may be configured according to actual application requirements of the vehicle lamp optical unit.
  • the projection plane shapes of the first light emergent surface 12 and the light incident structure reference plane 11 along the light emergent direction are respectively a strip-shape extending left and right;
  • the first light incident structure is configured to be multiple low-beam first light incident structures 111 and multiple high-beam first light incident structures 112;
  • the low-beam first light incident structures 111 and the high-beam first light incident structures 112 are arranged alternately;
  • each of the collimators 113 is located on the lower side of the light incident structure reference plane 11.
  • the first optical element 1 can be simultaneously used for forming partial light shape or complete light shape of the low beam or the high beam, and integrate multiple functions as a whole, thus making the structural design simple and compact.
  • the alternate arrangement of the low-beam first light incident structures 111 and the high-beam first light incident structures 112 can meet the requirement that under the two modes, i.e., the low-beam mode and the high-beam mode, the first light emergent surface 12 has consistent lightening effect, and it is avoided that the first light emergent surface 12 is only partially lightened in a single low-beam mode, which affects the lightening effect of the vehicle lamp.
  • the distance between the first cut-off portion 135 corresponding to the low-beam first light incident structure 111 and the upper surface of the first light passage 13 is greater than the distance between the first cut-off portion 135 corresponding to the high-beam first light incident structure 112 and the upper surface of the first light passage 13, that is to say, the first cut-off portion 135 corresponding to the high-beam first light incident structure 112 is higher than the first cut-off portion 135 corresponding to the low-beam first light incident structure 111, such that there is a segment difference the first cut-off portion 135 corresponding to the low-beam first light incident structure 111 and the first cut-off portion 135 corresponding to the high-beam first light incident structure 112.
  • the high-beam light shape and the low-beam light shape have a certain superposition, that is to say, the cut-off line of the high-beam light shape is located below the cut-off line of the low-beam light shape, and accordingly, the adjoining effect between the low beam and the high beam is better.
  • the intermediate connection surface 133 corresponding to the low-beam first light incident structure 111 is configured to tilt upwards from back to front, and the side of the intermediate connection surface 133 facing the first light passage 13 is configured as a reflecting surface; and the intermediate connection surface 133 corresponding to the high-beam first light incident structure 112 is configured to tilt downwards from back to front, and the side of the intermediate connection surface 133 departing from the first light passage 13 is also configured as a reflecting surface.
  • light rays received by the low-beam first light incident structure 111 are subjected to a direction change by the light guide portion 114 and are emitted towards the first light passage 13, then most light rays are directly transmitted to the first light emergent surface 12 after passing through the first light passage 13 and being cut off by the corresponding first cut-off portion 135 thereof, while other minor light rays are directed to the corresponding intermediate connection surface 133 thereof and reflected by the intermediate connection surface 133 to the inside of the first light passage 13 for further transmission, so as to improve the luminous efficiency.
  • Those two parts of light rays commonly form a light shape having an auxiliary low-beam cut-off line after emerging from the first light emergent surface 12. Referring to Fig.
  • the high-beam first light incident structure 112 takes the corresponding light guide portion connection surface 132 as a primary high-beam light emergent surface and takes the light passage connection surface 134 as a secondary high-beam light incident surface. Light rays received by the high-beam first light incident structure 112 emerge from the corresponding light guide portion connection surface 132 after direction change by the light guide portion 114.
  • Most light rays directly enter the first light passage 13 through the corresponding light passage connection surface 134 after being cut off by the corresponding first cut-off portion 135, and are transmitted to the first light emergent surface 12, while other minor light rays are directed to the corresponding intermediate connection surface 133 thereof and reflected by the intermediate connection surface 133 to the corresponding light passage connection surface 134 and are further transmitted in the first light passage 13, so as to improve the luminous efficiency.
  • Those two parts of light rays commonly form a light shape having an auxiliary high-beam cut-off line after emerging from the first light emergent surface 12.
  • this vehicle lamp optical unit further comprises a second optical element 2; a notch for accommodating the second optical element 2 is formed on one side in the left and right direction of the first optical element 1; the rear end face and the front end face of the second optical element 2 along the light emergent direction are respectively a light incident surface 21 and a second light emergent surface 22; the light incident surface 21 is provided with at least one second light incident structure; and the second optical element 2 is configured to be capable of guiding light rays emerging from the second light emergent surface 22 to exit through the first light emergent surface 12.
  • the first optical element 1 and the second optical element 2 share the first light emergent surface 12, which is more conducive to the combination of the light shapes of the two, such that the vehicle lamp optical unit forms a desired vehicle lamp light shape.
  • the first optical element 1 is preferably provided with a secondary light incident surface 14, the secondary light incident surface 14 is located in the rear of the first light emergent surface 12 and faces the notch, and the secondary light incident surface 14 comprises at least one curved surface protruding backwards.
  • the light incident surface 21 is provided with multiple second light incident structures, and the multiple second light incident structures are configured to have at least one low-beam second light incident structure 211 and at least one high-beam second light incident structure 212.
  • the specific numbers of the low-beam second light incident structures 211 and the high-beam second light incident structures 212 may be configured according to requirements for the light shape formed by the second optical element 2; moreover, it is preferred that those two are molded as a whole, hereby improving the installation accuracy of the vehicle lamp optical unit.
  • each of the low-beam second light incident structures 211 and each of the high-beam second light incident structures 212 are respectively a collimating structure.
  • the collimating structure may be a collimating element, such as a collimating cup, so as to improve the light efficiency.
  • the low-beam second light incident structure 211 is located above the high-beam second light incident structure 212;
  • the second light emergent surface 22 comprises a low-beam light emergent surface 221 located in front of the low-beam second light incident structure 211 and a high-beam light emergent surface 222 located at the light emergent end of the high-beam second light incident structure 212;
  • a second light passage 23 is provided between the light emergent end of the low-beam second light incident structure 211 and the low-beam light emergent surface 221;
  • a second cut-off portion 24 for forming a second light shape cut-off line is provided at the connection between the bottom surface of the second light passage 23 and the low-beam light emergent surface 221.
  • the lower surface of the second light passage 23 is configured as a reflecting surface.
  • the lower surface of the second light passage 23 is configured as a reflecting surface.
  • the low-beam light emergent surface 221 is configured as a curved surface protruding forwards, and specifically may be a curved surface protruding in up-down direction, or may also be a curved surface protruding in left-right direction, or may also be a curved surface protruding simultaneously in up-down direction and in left-right direction.
  • This structure makes light rays emerging from the low-beam light emergent surface 221 more concentrated, and more light rays would enter the secondary light incident surface 14, hereby further improving the luminous efficiency.
  • a light guide 3 is further provided in the recess structure 131, and the light emergent surface of the light guide 3 faces towards the light passage connection surface 134, such that light rays emerging from the light emergent surface of the light guide 3 are transmitted to the first light emergent surface 12 through the first light passage 13.
  • the light guide 3 shares the first light emergent surface 12 with the first optical element 1 and the second optical element 2, such that the vehicle lamp optical unit not only has the low-beam illumination function and/or the high-beam illumination function, but also has various illumination functions such as a low-beam III zone, a daytime running lamp or a position lamp, while occupied space is small.
  • the minimum distance L between the two is set to ⁇ 10 mm, preferably, 1 mm ⁇ L ⁇ 5 mm; and when the first optical element 1 is only provided with a low-beam first light incident structure 111, the distance L may be set to 0.
  • the vehicle lamp optical unit comprises a first optical element 1 and a second optical element 2.
  • the rear end face and the front end face of the first optical element 1 along a light emergent direction are respectively a light incident structure reference plane 11 and a first light emergent surface 12.
  • the projection plane shapes of the first light emergent surface 12 and the light incident structure reference plane 11 along the light emergent direction are respectively a strip-shape extending left and right.
  • the rear end of the first optical element 11 is formed as a light incident portion, the light incident portion comprises a first light incident structure provided along the left and right direction of the light incident structure reference plane 11.
  • a first light passage 13 is formed between the light incident portion and the first light emergent surface 12.
  • the first light emergent surface 12 is a curvature continuous curved surface protruding forwards.
  • the first light incident structure is configured to have six low-beam first light incident structures 111 and four high-beam first light incident structures 112.
  • the low-beam first light incident structures 111 and the high-beam first light incident structures 112 are arranged alternately.
  • Each of the low-beam first light incident structures 111 and each of the high-beam first light incident structures 112 respectively comprises a collimator 113 located on the lower side of the light incident structure reference plane 11 and a light guide portion 114.
  • the light guide portion 114 extends from the light emergent end of the collimator 113 to the rear end of the first light passage 13.
  • the light guide portion 114 is provided with a reflecting portion 115, and the reflecting portion 115 can reflect the emergent light of the collimator 113 to a direction towards the first light passage 13 for emergence.
  • a recess structure 131 corresponding to the light guide portion 114 is respectively provided at the connection between the first light passage 13 and each of the light guide portions 114.
  • Each of the recess structures 131 respectively comprises a light guide portion connection surface 132 in connection with the light guide portion 114 corresponding to the recess structure 131, an intermediate connection surface 133 in connection with the light guide portion connection surface 132, and an light passage connection surface 134 in connection with the intermediate connection surface 133.
  • a first cut-off portion 135 forming a first light shape cut-off line is provided at the connection between the intermediate connection surface 133 and the light passage connection surface 134, and the first cut-off portion 135 is located on the median surface of the first light emergent surface 12.
  • the distance between the first cut-off portion 135 corresponding to the low-beam first light incident structure 111 and the upper surface of the first light passage 13 is greater than the distance between the first cut-off portion 135 corresponding to the high-beam first light incident structure 112 and the upper surface of the first light passage 13.
  • the intermediate connection surface 133 corresponding to the low-beam first light incident structure 111 is configured to tilt upwards from back to front, and the side of the intermediate connection surface 133 facing the first light passage 13 is a reflecting surface.
  • the intermediate connection surface 133 corresponding to the high-beam first light incident structure 112 is configured to tilt downwards from back to front, and the side of the intermediate connection surface 133 departing from the first light passage 13 is a reflecting surface.
  • a notch for accommodating the second optical element 2 is formed on the right side in the left and right direction of the first optical element 1, a secondary light incident surface 14 is located in the rear of the first light emergent surface 12 and faces the notch, and the secondary light incident surface 14 comprises two curved surface protruding backwards, which are arranged in the left and right direction.
  • the rear end face and the front end face of the second optical element 2 along the light emergent direction are respectively a light incident surface 21 and a second light emergent surface 22.
  • the second light emergent surface 22 is arranged to face the secondary light incident surface 14.
  • the light incident surface 21 is provided with two low-beam second light incident structures 211 and two high-beam second light incident structures 212.
  • the low-beam second light incident structure 211 is located above the high-beam second light incident structure 212.
  • the light emergent end of the high-beam second light incident structure 212 is configured as a high-beam light emergent surface 222.
  • the front end of the low-beam second light incident structure 211 is successively provided with a second light passage 23 and a low-beam light emergent surface 221.
  • a second cut-off portion 24 for forming a second light shape cut-off line is provided at the connection between the bottom surface of the second light passage 23 and the low-beam light emergent surface 221.
  • the upper and lower sides of the lower surface of the second light passage 23 are both configured as reflecting surfaces.
  • the low-beam light emergent surface 221 is configured as a curved surface protruding forwards.
  • a light guide 3 for forming the light shape of a daytime running lamp may further be provided in the recess structure 131.
  • the light emergent surface of the light guide 3 faces the light passage connection surface 134, and the minimum distance L between the light guide 3 and the intermediate connection surface 133 is set to 3 mm.
  • the collimator 113 corresponding to the low-beam first light incident structure 111 receives light rays and emits the same to the light guide portion 114, the light rays are reflected by the reflecting portion 115 on the light guide portion 114 to the direction towards the first light passage 13 for emergence, and the light rays are transmitted to the first light emergent surface 12 through the first light passage 13 and form an auxiliary low-beam light shape b having an auxiliary low-beam cut-off line via the corresponding first cut-off portion 135 thereof; when turning on the light source 4 corresponding to the high-beam first light incident structure 112, the collimator 113 corresponding to the high-beam first light incident structure 112 receives light rays and emits the same to the light guide portion 114, the light rays emerge
  • the vehicle lamp optical unit as described above can realize various illumination functions such as low beam, high beam, and daytime running lamp.
  • light sources corresponding to the low-beam first light incident structure 111 and the low-beam second light incident structure 211 are turned on, it is the low-beam illumination mode for the vehicle lamp, and when the light sources corresponding to the high-beam first light incident structure 112 and the high-beam second light incident structure 212 are turned on, it is switched to the high beam illumination mode.
  • the function of the daytime running lamp can be realized just by turning on the light source corresponding to the light guide 3.
  • partial light shapes of the low beam or the high beam of the vehicle lamp are formed through projection by the first light emergent surface 12 of the first optical element 1.
  • the respective partial light shapes form a complete low beam or high beam light shape by splicing.
  • specific welcome or shutting-down mode of the vehicle lamp can be realized by lighting up the light sources 4 in a certain order when the vehicle lamp is lit up or shut down. For example, as shown in Figs. 31 and 32 , the low-beam light shape of the vehicle lamp is divided into nine areas.
  • light sources 4 corresponding to the nine areas are lit up one by one from left to right, so as to form light shapes of the nine areas in order, which are shown as 1, 2, 3, 4, 5, 6, 7, 8 and 9, hereby realizing the welcome mode of the vehicle lamp and ultimately forming a complete low-beam light shape.
  • a second aspect of the present invention provides a vehicle lamp module, comprising a vehicle lamp optical unit according to any one of the above-mentioned embodiments, and light sources 4 provided in one-to-one correspondence with the first light incident structures, wherein each of the light sources 4 is capable of being controlled individually to be turned on or turned off. Therefore, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments of the vehicle lamp optical unit.
  • a third aspect of the present invention provides a vehicle, comprising a vehicle lamp module as described above. Therefore, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments of the vehicle lamp optical unit and the vehicle lamp module.
  • the first light incident structure is configured to extend from one side in the upper-lower width direction of the light incident structure reference plane 11 to the first light passage 13, the first light incident structure can guide light rays received thereby to be emitted towards the first light passage 13 and be transmitted to the first light emergent surface 12 along the first light passage 13, that is to say, a light source corresponding to the first light incident structure is provided on the upper side or the lower side of the light incident structure reference plane 11, wherein it can be effectively avoided that a light spot is produced in a situation where the light source 4 is provided in the rear of the first optical element 1, hereby improving the illumination visual effect of the vehicle lamp optical unit; moreover, the vehicle lamp optical unit can meet requirements for various vehicle lamp illumination modes and lightening modes.

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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)

Claims (13)

  1. Unité optique de lampe de véhicule, comprenant un premier élément optique (1), dans laquelle une face d'extrémité arrière et une face d'extrémité avant du premier élément optique (1) le long d'une direction d'émergence de lumière sont respectivement un plan de référence (11) de structure d'incidence de lumière et une première surface d'émergence de lumière (12), une extrémité arrière du premier élément optique (1) est formée en tant que partie d'incidence de lumière, la partie d'incidence de lumière comprend au moins une première structure d'incidence de lumière disposée le long de la direction gauche et droite du plan de référence (11) de structure d'incidence de lumière, et un premier passage de lumière (13) est formé entre la partie d'incidence de lumière et la première surface d'émergence de lumière (12),
    dans laquelle la première structure d'incidence de lumière est configurée pour s'étendre depuis un côté supérieur ou un côté inférieur du plan de référence (11) de structure d'incidence de lumière jusqu'au premier passage de lumière (13), chacune des premières structures d'incidence de lumière est apte à guider des rayons lumineux reçus par la première structure d'incidence de lumière à émettre vers le premier passage de lumière (13) et à transmettre à la première surface d'émergence de lumière (12) le long du premier passage de lumière (13),
    caractérisée en ce que l'unité optique de lampe de véhicule comprend en outre un second élément optique (2) ; une encoche pour accueillir le second élément optique (2) est formée sur un côté dans la direction gauche et droite du premier élément optique (1) ; la face d'extrémité arrière et la face d'extrémité avant du second élément optique (2) le long de la direction d'émergence de lumière sont respectivement une surface d'incidence de lumière (21) et une seconde surface d'incidence de lumière (22) ; la surface d'incidence de lumière (21) est pourvue d'au moins une seconde structure d'incidence de lumière ; et
    le premier élément optique (1) est pourvu d'une surface d'incidence de lumière secondaire (14), la surface d'incidence de lumière secondaire (14) est située dans une partie arrière de la première surface d'émergence de lumière (12) et fait face à l'encoche, et la surface d'incidence de lumière secondaire (14) comprend au moins une surface incurvée faisant saillie vers l'arrière, et
    le second élément optique (12) est configuré pour être apte à guider des rayons lumineux émergeant de la seconde surface d'émergence de lumière (22) pour qu'ils sortent par la première surface d'émergence de lumière (12), après incidence depuis la surface d'incidence de lumière secondaire (14).
  2. Unité optique de lampe de véhicule selon la revendication 1, dans laquelle chacune des premières structures d'incidence de lumière comprend respectivement un collimateur (113) situé sur le côté supérieur ou le côté inférieur du plan de référence (11) de structure d'incidence de lumière et une partie de guidage de lumière (114) en raccordement avec le collimateur (113) ; la partie de guidage de lumière (114) s'étend depuis une extrémité d'émergence de lumière du collimateur (113) vers une extrémité arrière du premier passage de lumière (13) ; la partie de guidage de lumière (114) est pourvue d'une partie de réflexion (115) ; et la partie de réflexion (115) est apte à réfléchir une lumière d'émergence du collimateur (113) dans une direction vers le premier passage de lumière (13) pour émergence.
  3. Unité optique de lampe de véhicule selon la revendication 2, dans laquelle une structure d'évidement (131) correspondant à la partie de guidage de lumière (114) est prévue au niveau d'un raccordement entre le premier passage de lumière (13) et chacune des parties de guidage de lumière (114) respectivement, et chacune des structures d'évidement (131) comprend respectivement une surface de raccordement (132) de partie de guidage de lumière en raccordement avec la partie de guidage de lumière (114) correspondant à la structure d'évidement (131), une surface de raccordement intermédiaire (133) en raccordement avec la surface de raccordement (132) de partie de guidage de lumière, et une surface de raccordement (134) de passage de lumière en raccordement avec la surface de raccordement intermédiaire (133),
    dans laquelle une première partie de découpe (135) formant une première ligne de découpe de forme de lumière est prévue au niveau d'un raccordement entre la surface de raccordement intermédiaire (133) et la surface de raccordement (134) de passage de lumière.
  4. Unité optique de lampe de véhicule selon la revendication 3, dans laquelle la première surface d'émergence de lumière (12) est une surface incurvée faisant saillie vers l'avant, la première partie de découpe (135) est située sur une surface médiane de la première surface d'émergence de lumière (12), et la surface médiane est un plan horizontal passant par un sommet d'une transversale longitudinale de la première surface d'émergence de lumière (12).
  5. Unité optique de lampe de véhicule selon la revendication 4, dans laquelle la première surface d'émergence de lumière (12) est une surface incurvée à courbure continue.
  6. Unité optique de lampe de véhicule selon la revendication 3, dans laquelle un guide de lumière (3) est prévu dans la structure d'évidement (131), et une surface d'émergence de lumière du guide de lumière (3) fait face à la surface de raccordement (134) de passage de lumière, de telle sorte que des rayons lumineux émergeant de la surface d'émergence de lumière du guide de lumière (3) sont transmis à la première surface d'émergence de lumière (12) par le biais du premier passage de lumière (13).
  7. Unité optique de lampe de véhicule selon la revendication 3, dans laquelle la au moins une première structure d'incidence de lumière est configurée pour présenter au moins une première structure d'incidence de lumière à faisceau faible (111), ou présenter au moins une première structure d'incidence de lumière à faisceau élevé (112), ou présenter au moins une première structure d'incidence de lumière à faisceau faible (111) et au moins une première structure d'incidence de lumière à faisceau élevé (112); de préférence, la surface de raccordement intermédiaire (133) correspondant à la première structure d'incidence de lumière à faisceau faible (111) est configurée pour s'incliner vers le haut de l'arrière vers l'avant, lorsque l'unité optique de lampe est montée dans un véhicule, et un côté de la surface de raccordement intermédiaire (133) partant du premier passage de lumière (13) est une surface réfléchissante.
  8. Unité optique de lampe de véhicule selon la revendication 7, dans laquelle les formes de projections de la première surface d'émergence de lumière (12) et du plan de référence (11) de structure d'incidence de lumière le long de la direction d'émergence de lumière sont respectivement une forme de bande s'étendant vers la gauche et vers la droite ; la première structure d'incidence de lumière est fournie en tant qu'une pluralité des premières structures d'incidence de lumière à faisceau faible (111) et qu'une pluralité des premières structures d'incidence de lumière à faisceau élevé (112); les premières structures d'incidence de lumière à faisceau faible (111) et les premières structures d'incidence de lumière à faisceau élevé (112) sont agencées en alternance ; et chacun des collimateurs (113) est situé sur le côté inférieur du plan de référence (11) de structure d'incidence de lumière.
  9. Unité optique de lampe de véhicule selon la revendication 8, dans laquelle une distance entre la première partie de découpe (135) correspondant à la première structure d'incidence de lumière à faisceau faible (111) et une surface supérieure du premier passage de lumière (13) est supérieure à une distance entre la première partie de découpe (135) correspondant à la première structure d'incidence de lumière à faisceau élevé (112) et la surface supérieure du premier passage de lumière (13).
  10. Unité optique de lampe de véhicule selon l'une quelconque des revendications 1 à 9, dans laquelle la surface d'incidence de lumière (21) est pourvue d'une pluralité des secondes structures d'incidence de lumière, et la pluralité des secondes structures d'incidence de lumière sont configurées pour présenter au moins une seconde structure d'incidence de lumière à faisceau faible (211) et au moins une seconde structure d'incidence de lumière à faisceau élevé (212) ; de préférence, chacune des secondes structures d'incidence de lumière à faisceau faible (211) et chacune des secondes structures d'incidence de lumière à faisceau élevé (212) sont respectivement une structure de collimation.
  11. Unité optique de lampe de véhicule selon la revendication 10, dans laquelle la seconde structure d'incidence de lumière à faisceau faible (211) est située au-dessus de la seconde structure d'incidence de lumière à faisceau élevé (212) ; la seconde surface d'émergence de lumière (22) comprend une surface d'émergence de lumière à faisceau faible (221) située devant la seconde structure d'incidence de lumière à faisceau faible (211) et une surface d'émergence de lumière à faisceau élevé (222) située au niveau d'une extrémité d'émergence de lumière de la seconde structure d'incidence de lumière à faisceau faible (212) ; un second passage de lumière (23) est prévue entre l'extrémité d'émergence de lumière de la seconde structure d'incidence de lumière à faisceau faible (211) et la surface d'émergence de lumière à faisceau faible (221) ; et une seconde partie de découpe (24) pour former une seconde ligne de découpe de forme de lumière est prévue au niveau d'un raccordement entre une surface de fond du second passage de lumière (23) et la surface d'émergence de lumière à faisceau faible (221); de préférence, une surface inférieure du second passage de lumière (23) est fournie en tant que surface réfléchissante ; et de préférence, la surface d'émergence de lumière à faisceau faible (211) est fournie en tant que surface incurvée faisant saillie vers l'avant.
  12. Module de lampe de véhicule, caractérisé en ce que le module de lampe de véhicule comprend l'unité optique de lampe de véhicule selon l'une quelconque des revendications 1 à 11 et des sources de lumière (4) disposées en correspondance biunivoque avec les premières structures d'incidence de lumière, dans lequel chacune des sources de lumière (4) est apte à être commandée individuellement pour être allumée ou éteinte.
  13. Véhicule, caractérisé en ce que le véhicule comprend le module de lampe de véhicule selon la revendication 12.
EP21832556.1A 2020-07-02 2021-01-13 Unité optique de lampe de véhicule, module de lampe de véhicule et véhicule Active EP4137744B1 (fr)

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EP4137744C0 (fr) 2025-01-08
EP4137744A1 (fr) 2023-02-22

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