CN118167950A - Optical assembly, lighting and/or signalling device and motor vehicle - Google Patents

Optical assembly, lighting and/or signalling device and motor vehicle Download PDF

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Publication number
CN118167950A
CN118167950A CN202311355289.4A CN202311355289A CN118167950A CN 118167950 A CN118167950 A CN 118167950A CN 202311355289 A CN202311355289 A CN 202311355289A CN 118167950 A CN118167950 A CN 118167950A
Authority
CN
China
Prior art keywords
light
optical assembly
guiding unit
scattering layer
guide unit
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.)
Pending
Application number
CN202311355289.4A
Other languages
Chinese (zh)
Inventor
周海清
谢国良
张词灵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Vision SAS
Original Assignee
Valeo Vision SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Vision SAS filed Critical Valeo Vision SAS
Publication of CN118167950A publication Critical patent/CN118167950A/en
Pending legal-status Critical Current

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
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • 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
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/239—Light guides characterised by the shape of the light guide plate-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/245—Light guides characterised by the emission area emitting light from one or more of its major surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/249—Light guides with two or more light sources being coupled into the light guide

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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 invention relates to an optical component comprising: a light source (101) configured to emit light; a light guiding unit (102) configured to receive and guide light emitted by the light source (101) and to emit the light out of a light emitting surface of the light guiding unit (102); -a back plate (103) configured to provide support for the light guiding unit (102); and a scattering layer (106), the scattering layer (106) being arranged at the light exit side of the light guiding unit (102) to scatter light from the light guiding unit (102). The invention also provides a lighting and/or signalling device and a motor vehicle.

Description

Optical assembly, lighting and/or signalling device and motor vehicle
Technical Field
The invention relates to the technical field of car lamps, in particular to an optical assembly, a lighting and/or signal indicating device and a motor vehicle.
Background
Lighting devices for providing light for lighting and/or signaling functions are widely used in various fields, for example in motor vehicles for securing safe driving by means of lighting devices such as lamps. While various types of lights are often required on motor vehicles to perform different functions, including automotive headlights, fog lights, tail lights, turn signals, brake lights, side marker lights, standing lights, and the like.
Lighting devices capable of displaying patterns, such as text, symbols, or specific graphics, facilitate information interaction between a motor vehicle and other traffic participants.
Disclosure of Invention
The object of the present invention is therefore to propose an optical assembly, a lighting and/or signalling device and a motor vehicle which at least partially solve the above mentioned problems.
The invention discloses an optical component, comprising: a light source configured to emit light; a light guiding unit configured to receive and guide light emitted from the light source and to emit the light from a light emitting surface of the light guiding unit; a back plate configured to provide support for the light guide unit; and a scattering layer disposed at a light-emitting side of the light guide unit to scatter light from the light guide unit.
In some embodiments, the light guiding unit is a plate-shaped light guide and extends substantially perpendicular to the main exit direction.
In some embodiments, the light source is disposed at an end of the light guide unit.
In some embodiments, the scattering layer has a light-transmitting pattern formed thereon.
In some embodiments, the light-transmitting pattern is formed by applying a light-shielding layer on the scattering layer and then removing the light-shielding layer at the pattern location.
In some embodiments, the optical assembly further includes a transparent front plate disposed on the light-exiting side of the scattering layer and configured to transmit light rays from the scattering layer.
In some embodiments, a light-transmitting pattern is provided on a surface of the transparent front plate near the scattering layer side.
In some embodiments, the light source is a plurality of light sources arranged in sequence.
According to another aspect of the invention there is also provided an illumination and/or signalling device comprising any of the optical assemblies described above.
According to a further aspect of the invention there is also provided a motor vehicle comprising any one of the optical assemblies or lighting and/or signalling devices described above.
Drawings
The above features, technical features, advantages and the manner of attaining them will be further described in greater detail by the description of the preferred embodiments and by reference to the accompanying drawings, in a manner that is clearly understood in the following, wherein,
FIG. 1 illustrates a front view of an optical assembly 100 according to an embodiment of the invention;
FIG. 2 shows a side view of the optical assembly 100 of FIG. 1;
FIG. 3 shows a cross-sectional view of the optical assembly 100 of FIG. 1 according to the present invention;
Fig. 4 shows one example of a light-transmitting pattern of the optical assembly 100 according to the present invention;
fig. 5 shows another example of a light transmission pattern of the optical assembly 100 according to the present invention.
Detailed Description
Hereinafter, embodiments of the present invention are exemplarily described. As will be appreciated by those skilled in the art, the illustrated embodiments can be modified in various different ways without departing from the spirit of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive. In the following, the same reference numerals generally denote elements that are functionally identical or similar.
FIG. 1 illustrates a front view of an optical assembly 100 according to an embodiment of the invention; FIG. 2 shows a side view of the optical assembly 100 of FIG. 1; FIG. 3 shows a cross-sectional view of the optical assembly 100 of FIG. 1 according to the present invention; fig. 4 shows one example of a light-transmitting pattern of the optical assembly 100 according to the present invention; fig. 5 shows another example of a light transmission pattern of the optical assembly 100 according to the present invention.
The optical assembly 100 according to an embodiment of the present invention may be used for one or more of the functions of a turn signal lamp, a brake lamp, a side sign lamp, a standing car lamp, a back car lamp, a daytime running lamp, a position lamp, a grille lamp, etc., and the light function is not particularly limited herein.
The lighting device may comprise at least one optical assembly 100 according to the invention, each optical assembly 100 being adapted to perform a specific light function, and they may be staggered to perform a specific styling, it being understood, of course, that the lighting device may comprise any number of optical assemblies 100, and that these optical assemblies 100 may be arranged arbitrarily according to styling requirements.
As shown in fig. 1, the optical assembly 100 includes a light source 101, a light guide unit 102, and a back plate 103. Wherein a light source 101 is mounted on a printed circuit board 200 to emit light toward a light guide unit 102, the light source 101 is, for example, but not limited to, an LED light source, and the light guide unit 102 is substantially plate-shaped, including an end face and front and rear surfaces connected by the end face, as shown in fig. 1-3, wherein the light from the light source 101 is incident from the end face into the inside of the light guide unit 102 and propagates between the front and rear surfaces of the light guide unit 102 toward opposite ends of the end face, during which the light exits from the front surface of the light guide unit 102 along a main light-exiting direction H, that is, the front surface serves as a light-exiting surface of the light guide unit 102, thereby achieving a surface light-emitting effect.
According to an embodiment of the present invention, by making the light source 101 and the light guide unit 102 cooperate to achieve the surface light emitting effect, the cost can be greatly reduced relative to the OLED scheme.
In addition, with respect to the light guide unit 102, some light leaks from the rear surface of the light guide unit 102, and the optical efficiency is reduced. Accordingly, as shown in fig. 1 and 3, the optical assembly 100 further includes a back plate 103 disposed at a side close to the rear surface of the light guide unit 102, i.e., at a side opposite to the front surface, and configured to reflect light leaked from the rear surface toward the front surface. In the embodiment of the invention, the back plate 103 is disposed on the back side of the light guiding unit 102 to reflect the light leaked from the light guiding unit 102, so as to improve the optical efficiency and the uniformity of the light emitting effect. In some alternative examples, the back plate 103 is disposed on the same side of the light guide unit 102 as the rear surface and is configured to support the light guide unit 102 without providing a reflective function (e.g., without limitation, in the case where light of the light guide unit 102 does not leak out of the rear surface).
In some examples, for example, but not limited to, the back sheet may be selected to be reflective in color and/or material, such as a white back sheet, or other suitable color.
In alternative examples, the backsheet 103 may include a reflective layer, in which case the backsheet 103 may be selected to use a non-reflective color and/or material. The reflective layer is disposed between the back plate 103 and the light guide unit 102, and configured to reflect light from the light guide unit 102 toward the light exit surface. The back plate 103 and the reflective layer may be integrally formed, such as, but not limited to, by an injection molding process (over-molding, in-mold injection molding, etc.), or a spray coating process, etc., or both may be separately formed.
In some examples, light from the light source 101 may propagate through total reflection after entering the inside of the light guide unit 102, and in order to allow light to exit from the front surface of the light guide unit 102, the inside of the light guide unit 102 may include scattering particles, and the light from the light source 101 may be scattered by the scattering particles toward different directions, thereby breaking the total reflection condition of the light so that the light exits from the front surface of the light guide unit 102. The light guide unit with the scattering particles has good light diffusion characteristics, and can realize a very uniform light-emitting effect. As a non-limiting example, this type of light guiding unit may be chosen from, for example, polymethyl methacrylate (PMMA), such as the light guides identified as LEDs 8n LD 12, LD24, LD48, LD96, or Polycarbonate (PC), such as the light guide identified as EL2245, the color of which may be chosen as desired, for example, but not limited to, colorless, pale red, etc.
In alternative examples, an optical decoupling element may be disposed on the rear surface of the light guide unit 102 to disrupt the total reflection condition of the light, examples of which include, but are not limited to, protrusions, depressions, serrations, dermatoglyphs, stripes, squares, and the like.
In some examples, as shown in fig. 3, the light incident end of the light guide unit 102 is protruded in an arc shape toward the light source direction, so that the light from the light source 101 is guided to be incident to the rear surface of the light guide unit 102.
In some examples, at least a portion of the rear surface of the light guide unit 102 is inclined toward the front surface of the light guide unit 102, and light incident from the end surface of the light guide unit 102 reaches the rear surface and is reflected toward the front surface 220 to exit through the front surface. Further, the rear surface of the light guiding unit may comprise a plurality of total reflection facets configured to totally reflect light rays incident via the arc-shaped end surfaces towards the front surface of the light guiding unit 102. Thus, uniformity of lighting effect can be improved while improving optical efficiency. In a preferred example, the size of the total reflection facets is less than 0.5mm for better uniformity.
In some examples, as shown in fig. 3, the light guiding unit 102 has a gradually decreasing thickness in the light entering direction (thickness, i.e., the dimension of the light guiding unit 102 in the main light exiting direction). Since the light from the light source 101 gradually loses (e.g., due to light absorption, light leakage, etc. of the light guiding unit 102) when propagating along the light incident direction E, the light guiding unit 102 has a gradually reduced thickness in the light incident direction E, and the loss of the light at the smaller thickness can be reduced, so that the overall loss tends to be uniform, and the light guiding unit 102 has a relatively uniform surface light emitting effect.
It should be noted that, although the light source 101 is shown in fig. 1 to 3 to enter light from only one end face of the light guide unit 102, it is understood that it may also enter light from two opposite end faces of the light guide unit 102 at the same time, even from three end faces, four end faces, or more end faces of the light guide unit 102 at the same time, and the printed circuit board 200 may include a plurality of light sources 101 disposed along the end faces of the light guide unit 102.
In some examples, the optical assembly 100 further includes a diffusion layer 106 disposed between the light guide unit 102 and the transparent front plate 105, and light from the light guide unit 102 is incident to the diffusion layer and uniformly diffused by the diffusion layer 106, whereby uniformity of the lighting effect may be further improved. The scattering layer 106 may be made of any suitable light transmissive scattering material, such as, but not limited to, polymethyl methacrylate (PMMA), polycarbonate (PC), and the like. The diffusion layer 106 may be integrally formed with the light guide unit 102 and/or the transparent front plate 105 or separately formed. Preferably, the scattering angle of the scattering layer 106 is greater than 50 degrees, and the transmittance is greater than 85% to ensure uniformity of the lighting effect.
In some examples, the scattering layer 106 is provided with a light transmissive pattern to facilitate information interaction between the motor vehicle and other traffic participants. The light transmission pattern can be characters, symbols or specific figures. Fig. 4 and 5 show two illustrative examples of light transmission patterns of the optical assembly 100 according to the present invention, which are lines or specific shapes. The light-transmitting pattern may be any other desired design, and the arrangement, such as size, interval, shape, etc., may be selected according to the actual needs, such as gradual change, regular arrangement, irregular arrangement, etc., which is not particularly limited in the present invention.
The scattering layer 105 preferably has a small thickness, and in some examples, the scattering layer 105 is configured as a scattering film. Since the diffusion layer 106 has a thin thickness, the shape of the diffusion layer 106 may be adjusted according to the shape of the light guide unit 102 to better fit the light guide unit 102, so that the lighting effect of the light transmission pattern may be ensured.
In some examples, the light transmissive pattern is formed by applying a light shielding layer over the scattering layer 106, and then removing the light shielding material at the pattern locations. Specifically, the light-transmitting pattern may be formed by spraying an opaque coating, such as a black primer layer, on the scattering layer 106, followed by printing or laser engraving. This ensures that only a portion of the pattern of the scattering layer 106 is transparent to light, thereby creating the desired pattern when the optical assembly is in the lit state. The light-transmitting pattern may be implemented in other ways, and the present invention does not particularly limit the process of forming the light-transmitting pattern.
In further embodiments, the optical assembly 100 further comprises a transparent front plate 105, the transparent front plate 105 being disposed at the front side of the light guiding unit 102 and the scattering layer 106 and configured to transmit light after being scattered by the scattering layer 106. The transparent front plate 105 may function to protect the light guide unit 102 and the diffusion layer 106, which can prevent the light guide unit 102 and the diffusion layer 106 from being damaged or scratched.
In some examples, the scattering layer 106 is a flexible scattering film, and such an arrangement can easily form a light-transmitting pattern of a complex shape on the scattering layer 106 and ensure a degree of adhesion to the light guide unit 102 and the transparent front plate 105, resulting in a desired lighting effect.
In one example, a light-transmitting pattern is provided on a surface of the transparent front plate 105 on a side close to the scattering layer 106. The light-transmitting pattern is provided on the inner side surface of the transparent front plate 105 to effectively avoid damage and ensure the effect of the light-transmitting pattern.
The pattern on the transparent front plate 105 may be formed when the transparent front plate 105 is formed by injection molding or the like, or may be applied to the transparent front plate 105 after the transparent front plate 105 is formed. Specifically, the transparent pattern may be applied after the transparent front plate 105 is formed by spraying an opaque coating, such as a black primer layer, on the transparent front plate 105, and then printing or laser engraving is used to make the transparent pattern.
In a further example, an optical microstructure is provided on the side of the transparent front plate 105 close to the light guiding unit 102 to achieve the scattering effect achieved by the scattering layer 106, so that the scattering of light from the light guiding unit 102 is achieved without providing the scattering layer 106. Similar to the case of the diffusion layer 106, the diffusion angle of the optical microstructure disposed on the side of the transparent front plate 105 close to the light guide unit 102 is preferably greater than 50 degrees, and the transmittance is preferably greater than 85% to ensure uniformity of the lighting effect. The scattering microstructures on the transparent front plate 105 may be formed together when the transparent front plate 105 is formed by a process such as injection molding. Such an arrangement may save costs and simplify the assembly process. In this case, a light transmission pattern may be further prepared on the diffusion layer on the transparent front plate 105.
In one example, the light sources 101 are sequentially arranged, and the on and off of each light source 101 can be controlled independently, so that the lighting sequence can be adjusted as required, and a dynamic pattern effect is obtained.
The light emitting assembly 100 according to the present invention can generate a light emitting pattern having good light emitting uniformity and ensure a dynamic effect of the pattern.
The light assembly according to the invention can be used in particular for signalling functions of motor vehicles, such as daytime running lights, turn lights, standing lights or brake lights. The light emitting assembly according to the invention may also be used for lighting functions of motor vehicles, such as headlamps and the like.
According to an embodiment of the invention, there is also included a lighting device including any one of the optical assemblies described above.
According to an embodiment of the invention, there is also included a motor vehicle comprising a lighting device as described above.
The motor vehicle according to the invention has at least the advantageous effects of the lighting device of the motor vehicle described above.
The present invention is not limited to the above-described structure, and other various modifications may be employed. While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims (10)

1. An optical assembly (100), comprising:
A light source (101) configured to emit light;
A light guiding unit (102) configured to receive and guide the light source (101)
The emitted light rays are emitted from the light emitting surface of the light guide unit (102);
-a back plate (103) configured to provide support for the light guiding unit (102); and
And a scattering layer (106), the scattering layer (106) being arranged on the light-emitting side of the light-guiding unit (102) to scatter light from the light-guiding unit (102).
2. The optical assembly (100) according to claim 1, wherein the light guiding unit (102) is a plate-shaped light guide and extends substantially perpendicular to the main exit direction.
3. The optical assembly (100) according to claim 2, wherein the light source (101) is arranged at an end of the light guiding unit (102).
4. The optical assembly (100) of claim 2, wherein the scattering layer (106) has a light transmissive pattern formed thereon.
5. The optical assembly (100) of claim 4, wherein the light transmissive pattern is formed by applying a light shielding layer over the scattering layer (106) and then removing the light shielding layer at the pattern location.
6. The optical assembly (100) of claim 4, wherein the optical assembly (100) further comprises a transparent front plate (105), the transparent front plate (105) being disposed on the light exit side of the scattering layer (106) and configured to transmit light rays from the scattering layer (106).
7. The optical assembly (100) according to claim 6, wherein a light-transmitting pattern is provided on a surface of the transparent front plate (105) on a side close to the scattering layer (106).
8. An optical assembly (100) according to claim 3, wherein the light source (101) is a plurality arranged in sequence.
9. Lighting and/or signalling device, characterized in that it comprises an optical assembly (100) according to any one of claims 1-8.
10. Motor vehicle, characterized in that it comprises an optical assembly (100) according to any one of claims 1-8 or an illumination and/or signalling device according to claim 9.
CN202311355289.4A 2022-12-09 2023-10-19 Optical assembly, lighting and/or signalling device and motor vehicle Pending CN118167950A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202223320861 2022-12-09
CN2022233208617 2022-12-09

Publications (1)

Publication Number Publication Date
CN118167950A true CN118167950A (en) 2024-06-11

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ID=88833797

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311355289.4A Pending CN118167950A (en) 2022-12-09 2023-10-19 Optical assembly, lighting and/or signalling device and motor vehicle

Country Status (2)

Country Link
CN (1) CN118167950A (en)
WO (1) WO2024120737A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4596100B2 (en) * 2000-09-28 2010-12-08 豊田合成株式会社 Lighting device
US20050213351A1 (en) * 2004-03-23 2005-09-29 Chang-An Yang Light-Guiding structure for floor-pan edge of a car
US9638387B2 (en) * 2012-04-04 2017-05-02 Crawford Hollingworth Lighting units for road users
EP3567306A1 (en) * 2018-05-08 2019-11-13 Automotive Lighting Italia S.p.A. Automotive lighting and/or signaling device
CZ309603B6 (en) * 2020-03-09 2023-05-10 PO LIGHTING CZECH s.r.o. Vehicle lighting equipment

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