WO2023198809A1 - Signaling device for a vehicle - Google Patents

Signaling device for a vehicle Download PDF

Info

Publication number
WO2023198809A1
WO2023198809A1 PCT/EP2023/059624 EP2023059624W WO2023198809A1 WO 2023198809 A1 WO2023198809 A1 WO 2023198809A1 EP 2023059624 W EP2023059624 W EP 2023059624W WO 2023198809 A1 WO2023198809 A1 WO 2023198809A1
Authority
WO
WIPO (PCT)
Prior art keywords
pattern
light emitting
reflecting element
emitting assembly
light
Prior art date
Application number
PCT/EP2023/059624
Other languages
French (fr)
Inventor
Qiang Hu
Chen Chen
Wei-Wh LI
Daquan ZHANG
Huan Sun
Xizhou YUE
Original Assignee
Valeo Vision
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202220888214.7U external-priority patent/CN218032957U/en
Priority claimed from CN202210413451.2A external-priority patent/CN116951352A/en
Application filed by Valeo Vision filed Critical Valeo Vision
Publication of WO2023198809A1 publication Critical patent/WO2023198809A1/en

Links

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
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/15—Strips of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/50—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by aesthetic components not otherwise provided for, e.g. decorative trim, partition walls or covers

Definitions

  • the present invention relates to the field of lighting and signal indication of motor vehicles, and in particular, to a light emitting assembly, a lighting and/or signal indication device and a motor vehicle.
  • Lighting devices are widely used in various fields to provide light rays for lighting and/or optical indication functions.
  • lighting devices such as vehicle lamps are used in motor vehicles to ensure safe travel.
  • the arrangement of a light source and a reflective surface usually occupies more space, which increases the volume of a lighting or signal indication device.
  • an objective of the present invention is to propose a light emitting assembly which can at least partially solve the above-mentioned problems.
  • the present invention provides a light emitting assembly, comprising a light shielding component configured to form a pattern, the pattern allowing light rays to pass through; at least one light emitting element configured to emit light rays and arranged corresponding to the pattern; and at least one reflecting element arranged corresponding to the pattern and configured to reflect the light rays emitted by the light emitting element towards the pattern.
  • the pattern comprises a first pattern and a second pattern alternately arranged, with the first pattern and the second pattern having the same shape.
  • the pattern comprises a first pattern and a second pattern alternately arranged, with the widths of the first pattern and the second pattern adjacent to each other varying inversely in a direction perpendicular to an arrangement direction.
  • the pattern is triangular or trapezoidal.
  • the reflecting element comprises a first reflecting element and a second reflecting element alternately arranged, which respectively correspond to the first pattern and the second pattern, with the first reflecting element and the second reflecting element adjacent to each other extending in opposite directions in the direction perpendicular to the arrangement direction X.
  • a PCB is arranged between the second reflecting element and the first reflecting element adjacent to each other.
  • light emitting elements corresponding to the second reflecting element and the first reflecting element are respectively arranged on two sides of the same PCB.
  • the first reflecting element and the second reflecting element adjacent to each other are integrally formed.
  • the light emitting assembly further comprises an inner lens, the inner lens being arranged in an area of the light shielding component where the pattern is formed.
  • a light exit face of the inner lens is provided with an optical microstructure.
  • the optical microstructure comprises one or more of a protrusion, a depression, a dermatoglyph, a motif, a metal plating or coating and the like.
  • a side face of the inner lens is provided with motifs or dermatoglyphs, or is coated with a scattering material layer.
  • the present invention further provides a lighting device comprising a light emitting assembly described above.
  • the present invention further provides a motor vehicle comprising a light emitting assembly or a lighting device described above.
  • the light emitting assembly according to the present invention can generate a uniform light emitting pattern and ensure that the pattern has good light emitting uniformity, at the same time, it allows the patterns to be turned on or off independently, and there is a small spacing between the patterns without being subjected to light pollution from an adjacent pattern.
  • the arrangement of a reflecting unit of the light emitting assembly according to the present invention also allows the light emitting elements of adjacent pattern units to be arranged on two sides of the same PCB, which can effectively save on a space occupied by the light emitting assembly and facilitate the realization of a compact light generating device with a simple structure.
  • FIG.1 schematically shows a front view of a light emitting assembly according to the present invention
  • FIG.2 schematically shows a perspective view of a light emitting assembly according to the present invention
  • FIG.3 schematically shows a cross-sectional view of a light emitting assembly according to the present invention
  • FIG.4 schematically shows a front view of a reflecting element in a light emitting assembly according to the present invention
  • FIG.5 schematically shows another view of a reflecting element in a light emitting assembly according to the present invention
  • FIG.6 shows a front view of an inner lens and a light shielding component in a light emitting assembly according to the present invention.
  • FIG.7 schematically shows an optical path diagram of a light emitting assembly according to the present invention.
  • first, second and third may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish the same type of information from each other.
  • first information may also be referred to as the second information, and similarly the second information may also be referred to as the first information without departing from the scope of the present invention.
  • word “if” as used herein may be interpreted as “when” or “upon” or “in response to the determination”.
  • orientation or positional relationships indicated by the terms such as “longitudinal”, “transverse”, “up”, “down”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner” and “outer” are based on the orientation or positional relationships shown in the accompanying drawings, and are merely intended to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
  • Fig. 1 schematically shows a front view of a light emitting assembly according to the present invention
  • Fig. 2 schematically shows a perspective view of a light emitting assembly according to the present invention
  • Fig. 3 schematically shows a cross-sectional view of a light emitting assembly according to the present invention
  • Fig. 7 schematically shows an optical path diagram of a light emitting assembly according to the present invention.
  • a light emitting assembly comprises: a light shielding component 101 configured to form a pattern 105, the pattern 105 allowing light rays to pass through; at least one light emitting element 102 configured to emit light rays and arranged corresponding to the pattern 105; and at least one reflecting element 103 arranged corresponding to the pattern 105 and configured to reflect the light rays emitted by the light emitting element 102 towards the pattern 105.
  • the light shielding component 101 may generally be a planar structure, and the light shielding component 101 may be made of a non-light-transmitting material, and forms the pattern 105 by forming a hollowed-out area thereon.
  • the light shielding component 101 may also be made of a light-transmitting material, and forms the pattern 105 by applying a non-light-transmitting coating on a non-pattern position thereon.
  • the light shielding component 101 may be made by two-colour injection moulding or other processes, and the material and process of the light shielding component are not limited by the present invention.
  • the light shielding component 101 is provided with an area where the patterns 105 are repeatedly formed.
  • the light emitting assembly 100 comprises reflecting elements 103 arranged opposite the pattern 105 area, and light emitting elements 102 respectively associated with the reflecting elements 103, that is, the light emitting element 102 is positioned relative to the reflecting element 103 to illuminate a reflective surface of the reflecting element, and the light rays emitted by the light emitting element 102 are reflected, by the reflective surface, into a light beam directed to the pattern 105 area.
  • the turn-on and turnoff of each light emitting element 102 can be independently controlled, so that the final pattern effect can be flexibly adjusted as required.
  • the pattern 105 comprises a first pattern 1051 and a second pattern 1052 alternately arranged, with the first pattern 1051 and the second pattern 1052 having the same shape, such as being square, rectangular, and circular. Such an arrangement of the pattern 105 can ensure that a plurality of patterns have the same lighting effect and uniformity.
  • the pattern 105 comprises a first pattern 1051 and a second pattern 1052 alternately arranged, with the widths of the first pattern 1051 and the second pattern 1052 adjacent to each other varying inversely in a direction perpendicular to an arrangement direction X. That is, the first pattern 1051 and the second pattern 1052 adjacent to each other have opposite orientations.
  • a small spacing between patterns 105 adjacent to each other can be ensured, thus realizing a compact structure of the light emitting assembly.
  • the pattern 105 is triangular, and in the case of a triangular pattern, a bottom edge of a triangle corresponds to a maximum width, and an opposite vertex corresponds to a minimum width.
  • the bottom edge of the triangle varies from the maximum width to the minimum width or from the minimum width to the maximum width in sequence, that is, a bottom edge of the first pattern 1051 corresponds to a vertex of the adjacent second pattern 1052.
  • other shapes are also possible, such as a trapezoid or any other shape with the width varying in the direction perpendicular to the arrangement direction.
  • an upper base corresponds to the maximum width and a lower base corresponds to the minimum width.
  • the size of the pattern 105 in the above example embodiments is constant. However, in other embodiments, the pattern 105 may have varying sizes in both the arrangement direction X and the direction perpendicular to the arrangement direction X.
  • Fig. 4 schematically shows a front view of a reflecting element in a light emitting assembly according to the present invention
  • Fig. 5 schematically shows another view of a reflecting element in a light emitting assembly according to the present invention.
  • Fig. 5 for convenience of illustration, only one group of reflecting elements is shown, and other portions are omitted.
  • the reflecting element 103 comprises a first reflecting element 1031 and a second reflecting element 1032 alternately arranged, which respectively correspond to the first pattern 1051 and the second pattern 1052, with the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other extending in opposite directions in the direction perpendicular to the arrangement direction X.
  • Such an arrangement can ensure that it will not be subjected to light pollution from adjacent patterns, even if there is a small spacing between the patterns 105.
  • the first reflecting element 1031 and the second reflecting element 1032 are respectively used for reflecting the light rays reflected by the light emitting elements 102 associated with the first pattern 1051 and the second pattern 1052, so as to illuminate areas corresponding to the first pattern 1051 and the second pattern 1052.
  • the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other have a common first side wall 1033
  • the second reflecting element 1032 and the first reflecting element 1031 adjacent to each other have a common second side wall 1034, the second side wall 1034 and the first side wall 1033 adjacent to each other defining an extension direction of the first reflecting element 1031 , and the second side wall 1034 and the first side wall 1033 adjacent to each other defining an extension direction of the second reflecting element 1032.
  • the area corresponding to each pattern can be illuminated separately without leaking light to an adjacent pattern area.
  • Surfaces of the first side wall 1033 and the second side wall 1034 may be reflective or non-reflective.
  • a curved back wall of the reflecting element 103 is formed at a position opposite the area where the pattern 105 is formed on the light shielding component 101 , and connects the first side wall 1033 and the second side wall 1034 adjacent to each other, or connects the second side wall 1034 and the first side wall 1033 adjacent to each other for reflecting the light rays from the light emitting element 102.
  • the curved back wall of the reflecting element 103 is reflective so as to reflect light rays towards the area where the pattern 105 is formed on the light shielding component 101.
  • the reflecting element 103 may have a metal plating or coating, such as an aluminium plating, to enhance a reflective effect.
  • the reflecting element 103 may also be white.
  • a PCB 104 is arranged between the second reflecting element 1032 and the first reflecting element 1031 adjacent to each other.
  • the light emitting elements 102 corresponding to the second reflecting element 1032 and the first reflecting element 1031 are respectively arranged on two sides of the same PCB 104.
  • Such an arrangement can reduce the number of PCBs used, realize a simple and compact structure, and simplify the assembly process.
  • the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other extend in opposite directions in the direction perpendicular to the arrangement direction X
  • the first reflecting element 1031 and the second reflecting element 1032 have opposite reflective cavities
  • the PCB 104 is arranged between two opposite reflective cavities. Arranging the light emitting elements 102 on front and back sides of the PCB 104 can ensure that the light rays emitted by the light emitting elements 102 on two sides reach the areas where the patterns 1051 and 1052 are formed on the light shielding component 101 after the light rays are respectively reflected by the first reflecting element 1031 and the second reflecting element 1032.
  • the PCB 104 arranged between the two opposite reflective cavities can also close the reflective cavities on two sides.
  • the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other are integrally formed to simplify the processing and assembly process and save on space and cost.
  • Fig. 6 shows a schematic diagram of an inner lens and a light shielding component in a light emitting assembly according to the present invention.
  • the light emitting assembly 100 further comprises an inner lens 106 arranged at the area where the pattern 105 is formed on the light shielding component 101 , and the shape of the inner lens matches the area where the pattern 105 is formed, so as to transmit the light rays reflected to a pattern area by the reflecting element 103 and improve the uniformity of a light exit effect.
  • a light exit face 1061 of the inner lens 106 is provided with an optical microstructure so as to further increase the uniformity of the light exit effect.
  • the optical microstructure may be a pillow-shaped optical face or a graining, and specifically, the optical microstructure comprises one or more of a protrusion, a depression, a dermatoglyph, a motif, a metal plating or coating, a white material layer and the like.
  • the optical microstructure may also have other forms, as long as it can achieve a light equalizing effect, which is not specifically defined in the present invention.
  • a side face 1062 of the inner lens 106 namely, the other surface except for a light incident face and the light exit face, is provided with motifs or dermatoglyphs, or is coated with a scattering material layer, so as to utilize large-angle light rays from the light emitting element 102 and improve the light exit effect of the light emitting element.
  • the light emitting assembly 100 can generate a uniform light emitting pattern and ensure that the pattern has good light emitting uniformity, at the same time, it allows the patterns to be turned on or off independently, and there is a small spacing between the patterns without being subjected to light pollution from an adjacent pattern.
  • the arrangement of a reflecting unit of the light emitting assembly 100 according to the present invention also allows the light emitting elements of adjacent pattern units to be arranged on two sides of the same PCB, which can effectively save on a space occupied by the light emitting assembly and facilitate the realization of a compact light generating device with a simple structure.
  • the light emitting assembly according to the present invention can be particularly used for signal functions of motor vehicles, such as daytime running lights, turn signals, parking lights or brake lights.
  • the light emitting assembly according to the present invention can also be used for lighting functions of motor vehicles, such as headlamps and the like. Accordingly, the present invention provides a lighting and/or signal indication device comprising the above-mentioned light emitting assembly.
  • the present invention further provides a motor vehicle, which comprises the above- mentioned lighting device of the motor vehicle.
  • the motor vehicle according to the present invention has at least the beneficial effects brought by the lighting device of the motor vehicle.

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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)

Abstract

The present invention discloses a light emitting assembly (100), comprising: a light shielding component (101) configured to form a pattern (105), the pattern (105) allowing light rays to pass through; at least one light emitting element (102) configured to emit light rays and arranged corresponding to the pattern (105); and at least one reflecting element (103) arranged corresponding to the pattern (105) and configured to reflect the light rays emitted by the light emitting element (102) towards the pattern (105). The present invention further discloses a lighting device and a motor vehicle.

Description

Description
Title : SIGNALING DEVICE FOR A VEHICLE
Technical Field
The present invention relates to the field of lighting and signal indication of motor vehicles, and in particular, to a light emitting assembly, a lighting and/or signal indication device and a motor vehicle.
Background
Lighting devices are widely used in various fields to provide light rays for lighting and/or optical indication functions. For example, lighting devices such as vehicle lamps are used in motor vehicles to ensure safe travel.
With the improvement of aesthetic level, the requirements for the modelling of vehicle lamps are getting higher. At present, a development trend is to generate pixelated light beams and display pictograms or variable patterns on a surface for the projection of light output, so as to perform signal indication or lighting.
In the existing implementation of pixelated light beams, the arrangement of a light source and a reflective surface usually occupies more space, which increases the volume of a lighting or signal indication device.
Summary
To this end, an objective of the present invention is to propose a light emitting assembly which can at least partially solve the above-mentioned problems.
The present invention provides a light emitting assembly, comprising a light shielding component configured to form a pattern, the pattern allowing light rays to pass through; at least one light emitting element configured to emit light rays and arranged corresponding to the pattern; and at least one reflecting element arranged corresponding to the pattern and configured to reflect the light rays emitted by the light emitting element towards the pattern.
According to a non-limiting embodiment of the present invention, the pattern comprises a first pattern and a second pattern alternately arranged, with the first pattern and the second pattern having the same shape.
According to a non-limiting embodiment of the present invention, the pattern comprises a first pattern and a second pattern alternately arranged, with the widths of the first pattern and the second pattern adjacent to each other varying inversely in a direction perpendicular to an arrangement direction. According to a non-limiting embodiment of the present invention, the pattern is triangular or trapezoidal.
According to a non-limiting embodiment of the present invention, the reflecting element comprises a first reflecting element and a second reflecting element alternately arranged, which respectively correspond to the first pattern and the second pattern, with the first reflecting element and the second reflecting element adjacent to each other extending in opposite directions in the direction perpendicular to the arrangement direction X.
According to a non-limiting embodiment of the present invention, in the direction perpendicular to the arrangement direction, a PCB is arranged between the second reflecting element and the first reflecting element adjacent to each other.
According to a non-limiting embodiment of the present invention, light emitting elements corresponding to the second reflecting element and the first reflecting element are respectively arranged on two sides of the same PCB.
According to a non-limiting embodiment of the present invention, in the direction along the arrangement direction, the first reflecting element and the second reflecting element adjacent to each other are integrally formed.
According to a non-limiting embodiment of the present invention, the light emitting assembly further comprises an inner lens, the inner lens being arranged in an area of the light shielding component where the pattern is formed.
According to a non-limiting embodiment of the present invention, a light exit face of the inner lens is provided with an optical microstructure.
According to a non-limiting embodiment of the present invention, the optical microstructure comprises one or more of a protrusion, a depression, a dermatoglyph, a motif, a metal plating or coating and the like.
According to a non-limiting embodiment of the present invention, a side face of the inner lens is provided with motifs or dermatoglyphs, or is coated with a scattering material layer.
The present invention further provides a lighting device comprising a light emitting assembly described above.
The present invention further provides a motor vehicle comprising a light emitting assembly or a lighting device described above.
The light emitting assembly according to the present invention can generate a uniform light emitting pattern and ensure that the pattern has good light emitting uniformity, at the same time, it allows the patterns to be turned on or off independently, and there is a small spacing between the patterns without being subjected to light pollution from an adjacent pattern. In addition, the arrangement of a reflecting unit of the light emitting assembly according to the present invention also allows the light emitting elements of adjacent pattern units to be arranged on two sides of the same PCB, which can effectively save on a space occupied by the light emitting assembly and facilitate the realization of a compact light generating device with a simple structure.
Brief Description of the Drawings
The present invention is expounded in greater detail below with the aid of the drawings. In the drawings:
[Fig .1 ] schematically shows a front view of a light emitting assembly according to the present invention;
[Fig.2] schematically shows a perspective view of a light emitting assembly according to the present invention;
[Fig.3] schematically shows a cross-sectional view of a light emitting assembly according to the present invention;
[Fig.4] schematically shows a front view of a reflecting element in a light emitting assembly according to the present invention;
[Fig.5] schematically shows another view of a reflecting element in a light emitting assembly according to the present invention;
[Fig.6] shows a front view of an inner lens and a light shielding component in a light emitting assembly according to the present invention; and
[Fig.7] schematically shows an optical path diagram of a light emitting assembly according to the present invention.
Detailed Description of Embodiments
Embodiments of the present invention are described exemplarily below. As those skilled in the art should realize, the embodiments described may be modified in various ways without departing from the concept of the present invention. Thus, the drawings and description are essentially exemplary rather than limiting. In the following text, identical reference numerals generally denote elements with identical or similar functions.
It should be understood that although the terms, such as first, second and third, may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish the same type of information from each other. For example, the first information may also be referred to as the second information, and similarly the second information may also be referred to as the first information without departing from the scope of the present invention. Depending on the context, the word “if” as used herein may be interpreted as “when” or “upon” or “in response to the determination”.
In the description of the present invention, it should be understood that orientation or positional relationships indicated by the terms such as “longitudinal”, “transverse”, “up”, “down”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner” and “outer” are based on the orientation or positional relationships shown in the accompanying drawings, and are merely intended to facilitate the description of the present invention and simplify the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
Fig. 1 schematically shows a front view of a light emitting assembly according to the present invention; Fig. 2 schematically shows a perspective view of a light emitting assembly according to the present invention; Fig. 3 schematically shows a cross-sectional view of a light emitting assembly according to the present invention; and Fig. 7 schematically shows an optical path diagram of a light emitting assembly according to the present invention.
As shown in figures 1 -3, a light emitting assembly according to the present invention comprises: a light shielding component 101 configured to form a pattern 105, the pattern 105 allowing light rays to pass through; at least one light emitting element 102 configured to emit light rays and arranged corresponding to the pattern 105; and at least one reflecting element 103 arranged corresponding to the pattern 105 and configured to reflect the light rays emitted by the light emitting element 102 towards the pattern 105.
The light shielding component 101 may generally be a planar structure, and the light shielding component 101 may be made of a non-light-transmitting material, and forms the pattern 105 by forming a hollowed-out area thereon. The light shielding component 101 may also be made of a light-transmitting material, and forms the pattern 105 by applying a non-light-transmitting coating on a non-pattern position thereon. The light shielding component 101 may be made by two-colour injection moulding or other processes, and the material and process of the light shielding component are not limited by the present invention.
In order to achieve a pixelated effect, the light shielding component 101 is provided with an area where the patterns 105 are repeatedly formed. For each pattern 105, the light emitting assembly 100 comprises reflecting elements 103 arranged opposite the pattern 105 area, and light emitting elements 102 respectively associated with the reflecting elements 103, that is, the light emitting element 102 is positioned relative to the reflecting element 103 to illuminate a reflective surface of the reflecting element, and the light rays emitted by the light emitting element 102 are reflected, by the reflective surface, into a light beam directed to the pattern 105 area. The turn-on and turnoff of each light emitting element 102 can be independently controlled, so that the final pattern effect can be flexibly adjusted as required.
In an embodiment, the pattern 105 comprises a first pattern 1051 and a second pattern 1052 alternately arranged, with the first pattern 1051 and the second pattern 1052 having the same shape, such as being square, rectangular, and circular. Such an arrangement of the pattern 105 can ensure that a plurality of patterns have the same lighting effect and uniformity.
In an embodiment, as shown in Fig. 1 , the pattern 105 comprises a first pattern 1051 and a second pattern 1052 alternately arranged, with the widths of the first pattern 1051 and the second pattern 1052 adjacent to each other varying inversely in a direction perpendicular to an arrangement direction X. That is, the first pattern 1051 and the second pattern 1052 adjacent to each other have opposite orientations. By means of such an arrangement, a small spacing between patterns 105 adjacent to each other can be ensured, thus realizing a compact structure of the light emitting assembly.
In an embodiment, the pattern 105 is triangular, and in the case of a triangular pattern, a bottom edge of a triangle corresponds to a maximum width, and an opposite vertex corresponds to a minimum width. In the direction perpendicular to the arrangement direction X, the bottom edge of the triangle varies from the maximum width to the minimum width or from the minimum width to the maximum width in sequence, that is, a bottom edge of the first pattern 1051 corresponds to a vertex of the adjacent second pattern 1052. However, in other embodiments, other shapes are also possible, such as a trapezoid or any other shape with the width varying in the direction perpendicular to the arrangement direction. In the case of a trapezoidal pattern, an upper base corresponds to the maximum width and a lower base corresponds to the minimum width.
The size of the pattern 105 in the above example embodiments is constant. However, in other embodiments, the pattern 105 may have varying sizes in both the arrangement direction X and the direction perpendicular to the arrangement direction X.
Fig. 4 schematically shows a front view of a reflecting element in a light emitting assembly according to the present invention; and Fig. 5 schematically shows another view of a reflecting element in a light emitting assembly according to the present invention. In Fig. 5, for convenience of illustration, only one group of reflecting elements is shown, and other portions are omitted.
In an embodiment, as shown in figures 2-6, the reflecting element 103 comprises a first reflecting element 1031 and a second reflecting element 1032 alternately arranged, which respectively correspond to the first pattern 1051 and the second pattern 1052, with the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other extending in opposite directions in the direction perpendicular to the arrangement direction X. Such an arrangement can ensure that it will not be subjected to light pollution from adjacent patterns, even if there is a small spacing between the patterns 105.
Specifically, the first reflecting element 1031 and the second reflecting element 1032 are respectively used for reflecting the light rays reflected by the light emitting elements 102 associated with the first pattern 1051 and the second pattern 1052, so as to illuminate areas corresponding to the first pattern 1051 and the second pattern 1052. The first reflecting element 1031 and the second reflecting element 1032 adjacent to each other have a common first side wall 1033, and the second reflecting element 1032 and the first reflecting element 1031 adjacent to each other have a common second side wall 1034, the second side wall 1034 and the first side wall 1033 adjacent to each other defining an extension direction of the first reflecting element 1031 , and the second side wall 1034 and the first side wall 1033 adjacent to each other defining an extension direction of the second reflecting element 1032. By means of the separation of the side walls, the area corresponding to each pattern can be illuminated separately without leaking light to an adjacent pattern area. Surfaces of the first side wall 1033 and the second side wall 1034 may be reflective or non-reflective.
A curved back wall of the reflecting element 103 is formed at a position opposite the area where the pattern 105 is formed on the light shielding component 101 , and connects the first side wall 1033 and the second side wall 1034 adjacent to each other, or connects the second side wall 1034 and the first side wall 1033 adjacent to each other for reflecting the light rays from the light emitting element 102. The curved back wall of the reflecting element 103 is reflective so as to reflect light rays towards the area where the pattern 105 is formed on the light shielding component 101.
In a specific example, the reflecting element 103 may have a metal plating or coating, such as an aluminium plating, to enhance a reflective effect. In other examples, the reflecting element 103 may also be white.
In an embodiment, in the direction perpendicular to the arrangement direction X, a PCB 104 is arranged between the second reflecting element 1032 and the first reflecting element 1031 adjacent to each other.
In a specific example, the light emitting elements 102 corresponding to the second reflecting element 1032 and the first reflecting element 1031 are respectively arranged on two sides of the same PCB 104. Such an arrangement can reduce the number of PCBs used, realize a simple and compact structure, and simplify the assembly process.
Specifically, because the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other extend in opposite directions in the direction perpendicular to the arrangement direction X, the first reflecting element 1031 and the second reflecting element 1032 have opposite reflective cavities, and the PCB 104 is arranged between two opposite reflective cavities. Arranging the light emitting elements 102 on front and back sides of the PCB 104 can ensure that the light rays emitted by the light emitting elements 102 on two sides reach the areas where the patterns 1051 and 1052 are formed on the light shielding component 101 after the light rays are respectively reflected by the first reflecting element 1031 and the second reflecting element 1032. Moreover, the PCB 104 arranged between the two opposite reflective cavities can also close the reflective cavities on two sides. In a specific example, in the direction along the arrangement direction X, the first reflecting element 1031 and the second reflecting element 1032 adjacent to each other are integrally formed to simplify the processing and assembly process and save on space and cost.
Fig. 6 shows a schematic diagram of an inner lens and a light shielding component in a light emitting assembly according to the present invention. In an embodiment, as shown in Fig. 6, the light emitting assembly 100 further comprises an inner lens 106 arranged at the area where the pattern 105 is formed on the light shielding component 101 , and the shape of the inner lens matches the area where the pattern 105 is formed, so as to transmit the light rays reflected to a pattern area by the reflecting element 103 and improve the uniformity of a light exit effect.
In an embodiment, a light exit face 1061 of the inner lens 106 is provided with an optical microstructure so as to further increase the uniformity of the light exit effect.
In a specific example, the optical microstructure may be a pillow-shaped optical face or a graining, and specifically, the optical microstructure comprises one or more of a protrusion, a depression, a dermatoglyph, a motif, a metal plating or coating, a white material layer and the like. Of course, the optical microstructure may also have other forms, as long as it can achieve a light equalizing effect, which is not specifically defined in the present invention.
In a specific example, a side face 1062 of the inner lens 106, namely, the other surface except for a light incident face and the light exit face, is provided with motifs or dermatoglyphs, or is coated with a scattering material layer, so as to utilize large-angle light rays from the light emitting element 102 and improve the light exit effect of the light emitting element.
The light emitting assembly 100 according to the present invention can generate a uniform light emitting pattern and ensure that the pattern has good light emitting uniformity, at the same time, it allows the patterns to be turned on or off independently, and there is a small spacing between the patterns without being subjected to light pollution from an adjacent pattern. In addition, the arrangement of a reflecting unit of the light emitting assembly 100 according to the present invention also allows the light emitting elements of adjacent pattern units to be arranged on two sides of the same PCB, which can effectively save on a space occupied by the light emitting assembly and facilitate the realization of a compact light generating device with a simple structure. The light emitting assembly according to the present invention can be particularly used for signal functions of motor vehicles, such as daytime running lights, turn signals, parking lights or brake lights. The light emitting assembly according to the present invention can also be used for lighting functions of motor vehicles, such as headlamps and the like. Accordingly, the present invention provides a lighting and/or signal indication device comprising the above-mentioned light emitting assembly.
In addition, the present invention further provides a motor vehicle, which comprises the above- mentioned lighting device of the motor vehicle. The motor vehicle according to the present invention has at least the beneficial effects brought by the lighting device of the motor vehicle.
The present invention, instead of being limited to the above-described structure, may also have other variants. Although the present invention has already been described by means of a limited number of embodiments, those skilled in the art could, having the benefit from this disclosure, design other embodiments which do not depart from the scope of protection of the present invention disclosed herein. Thus, the scope of protection of the present invention should be defined by the attached claims alone.

Claims

Claims
1. Light emitting assembly (100), characterized by comprising: a light shielding component (101 ) configured to form a pattern (105), the pattern (105) allowing light rays to pass through; at least one light emitting element (102) configured to emit light rays and arranged corresponding to the pattern (105); and at least one reflecting element (103) arranged corresponding to the pattern (105) and configured to reflect the light rays emitted by the light emitting element (102) towards the pattern (105).
2. Light emitting assembly (100) according to Claim 1 , characterized in that the pattern (105) comprises a first pattern (1051 ) and a second pattern (1052) alternately arranged, with the first pattern (1051 ) and the second pattern (1052) having the same shape.
3. Light emitting assembly (100) according to Claim 1 , characterized in that the pattern (105) comprises a first pattern (1051 ) and a second pattern (1052) alternately arranged, with the widths of the first pattern (1051 ) and the second pattern (1052) adjacent to each other varying inversely in a direction perpendicular to an arrangement direction (X).
4. Light emitting assembly (100) according to Claim 3, characterized in that the pattern (105) is triangular or trapezoidal.
5. Light emitting assembly (100) according to Claim 2 or 3, characterized in that the reflecting element (103) comprises a first reflecting element (1031 ) and a second reflecting element (1032) alternately arranged, which respectively correspond to the first pattern (1051 ) and the second pattern (1052), with the first reflecting element (1031 ) and the second reflecting element (1032) adjacent to each other extending in opposite directions in the direction perpendicular to the arrangement direction (X).
6. Light emitting assembly (100) according to Claim 5, characterized in that in the direction perpendicular to the arrangement direction (X), a PCB (104) is arranged between the second reflecting element (1032) and the first reflecting element (1031 ) adjacent to each other.
7. Light emitting assembly (100) according to Claim 6, characterized in that the light emitting elements (102) corresponding to the second reflecting element (1032) and the first reflecting element (1031 ) are respectively arranged on two sides of the same PCB (104).
8. Light emitting assembly (100) according to Claim 5, characterized in that in a direction along the arrangement direction (X), the first reflecting element (1031 ) and the second reflecting element (1032) adjacent to each other are integrally formed.
9. Light emitting assembly (100) according to Claim 1 , characterized in that the light emitting assembly (100) further comprises an inner lens (106), the inner lens (106) being arranged in an area of the light shielding component (101 ) where the pattern (105) is formed.
10. Light emitting assembly (100) according to Claim 9, characterized in that a light exit face (1061 ) of the inner lens (106) is provided with an optical microstructure.
11. Light emitting assembly (100) according to Claim 10, characterized in that the optical microstructure comprises one or more of a protrusion, a depression, a dermatoglyph, a motif, and a metal plating or coating.
12. Light emitting assembly according to Claim 9, characterized in that a side face (1062) of the inner lens (106) is provided with motifs or dermatoglyphs, or is coated with a scattering material layer.
13. Lighting device comprising a light emitting assembly (100) according to any one of Claims 1 to 1 1 .
14. Motor vehicle comprising a light emitting assembly (100) according to any one of Claims 1 to 1 1 or a lighting device according to Claim 13.
PCT/EP2023/059624 2022-04-15 2023-04-13 Signaling device for a vehicle WO2023198809A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202220888214.7U CN218032957U (en) 2022-04-15 2022-04-15 Light emitting assembly, lighting device and motor vehicle
CN202210413451.2A CN116951352A (en) 2022-04-15 2022-04-15 Light emitting assembly, lighting device and motor vehicle
CN202220888214.7 2022-04-15
CN202210413451.2 2022-04-15

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Publication Number Publication Date
WO2023198809A1 true WO2023198809A1 (en) 2023-10-19

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2824383A1 (en) * 2012-03-08 2015-01-14 Koito Manufacturing Co., Ltd. Vehicle lamp fitting
EP3453956A1 (en) * 2017-09-12 2019-03-13 Valeo Vision Method for obtaining a luminous device with different appearance when turned on and turned off
FR3097936A1 (en) * 2019-06-28 2021-01-01 Valeo Vision Lighting device for motor vehicle
DE102019124555A1 (en) * 2019-09-12 2021-03-18 HELLA GmbH & Co. KGaA Lighting device for vehicles
DE102020214360A1 (en) * 2020-05-08 2021-11-11 Hyundai Motor Company Concealed light device for vehicles
WO2023030820A1 (en) * 2021-09-03 2023-03-09 Valeo Vision Light-signalling module having a pattern which is inverted step by step
WO2023083633A1 (en) * 2021-11-15 2023-05-19 HELLA GmbH & Co. KGaA Illumination device for a motor vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2824383A1 (en) * 2012-03-08 2015-01-14 Koito Manufacturing Co., Ltd. Vehicle lamp fitting
EP3453956A1 (en) * 2017-09-12 2019-03-13 Valeo Vision Method for obtaining a luminous device with different appearance when turned on and turned off
FR3097936A1 (en) * 2019-06-28 2021-01-01 Valeo Vision Lighting device for motor vehicle
DE102019124555A1 (en) * 2019-09-12 2021-03-18 HELLA GmbH & Co. KGaA Lighting device for vehicles
DE102020214360A1 (en) * 2020-05-08 2021-11-11 Hyundai Motor Company Concealed light device for vehicles
WO2023030820A1 (en) * 2021-09-03 2023-03-09 Valeo Vision Light-signalling module having a pattern which is inverted step by step
WO2023083633A1 (en) * 2021-11-15 2023-05-19 HELLA GmbH & Co. KGaA Illumination device for a motor vehicle

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