CN220338282U - Light guide, lighting and/or signalling device and motor vehicle - Google Patents

Light guide, lighting and/or signalling device and motor vehicle Download PDF

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Publication number
CN220338282U
CN220338282U CN202321351089.7U CN202321351089U CN220338282U CN 220338282 U CN220338282 U CN 220338282U CN 202321351089 U CN202321351089 U CN 202321351089U CN 220338282 U CN220338282 U CN 220338282U
Authority
CN
China
Prior art keywords
light
light guide
section
guide arrangement
utility
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
CN202321351089.7U
Other languages
Chinese (zh)
Inventor
林中乔
倪泽斌
史新刚
何增健
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.)
Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
Original Assignee
Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
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 Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd filed Critical Foshan Ichikoh Valeo Auto Lighting Systems Co Ltd
Priority to CN202321351089.7U priority Critical patent/CN220338282U/en
Application granted granted Critical
Publication of CN220338282U publication Critical patent/CN220338282U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—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
    • F21S41/30—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
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • 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
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • 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
    • 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
    • F21S43/315—Optical layout thereof 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
    • 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
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • F21S43/332—Diffusing reflectors
    • 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
    • F21S43/402—Total internal reflection [TIR] collimators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0028—Light guide, e.g. taper

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The utility model discloses a light guide device, a lighting and/or signaling device and a motor vehicle. The light guide device includes: at least one light entrance section (10), the light entrance section (10) being configured to receive light rays from a light source and at least one light reflection section (20), the light reflection section (20) being configured to receive and reflect light rays from a corresponding light entrance section (10) and a light exit section (30), the light exit section (30) being configured to exit light rays reflected via the light reflection section (10) in a first direction (D1) and the light guide device (100) further comprising a first reflection surface (110), the first reflection surface (110) being arranged to reflect at least a part of the light rays to the light reflection section (20).

Description

Light guide, lighting and/or signalling device and motor vehicle
Technical Field
The present utility model relates to a light guide, a lighting and/or signalling device and a motor vehicle.
Background
The light guide means is a light guide means for transmitting light therein mainly by total reflection. Light guides are widely used in the fields of light illumination, light transmission, and the like. The light guide may generally input light from one end thereof and conduct the light to the other end of the light guide or any desired exit location via total reflection from its outer wall.
Light guides have found widespread use in lighting or signaling devices for vehicles or electronic devices. For existing devices, the brightness or uniformity of brightness of the illumination may not meet practical requirements at certain angles.
Disclosure of Invention
The object of the present utility model is to provide a light guide device, a lighting and/or signalling device and a motor vehicle, which light guide device is capable of improving the lighting effect, improving the optical distribution uniformity.
In one aspect, there is provided a light guide apparatus comprising: at least one light incident portion configured to receive light rays from the light source and at least one light reflecting portion configured to receive and reflect light rays from the corresponding light incident portion; and a light exit portion configured to exit the light beam reflected by the light reflection portion in a first direction, the light guide device further including a first reflection surface arranged to reflect at least a part of the light beam to the light reflection portion.
In an embodiment, the first reflective surface is configured to connect the light incident portion and a body of the light guide extending in the first direction.
In an embodiment, the light guide further comprises a second surface configured to connect light reflecting portions corresponding to two adjacent light incident portions.
In an embodiment, at least one of the light reflecting portion, the first reflecting surface and the second surface is provided with a light diffusing structure.
In an embodiment, the light diffusing structure is a micro pillow-like structure array, a micro lens array or a dermatoglyph structure.
In an embodiment, the light incident portion has a collimating structure.
In an embodiment, the first reflective surface is arranged to extend between the collimating structure and the light reflecting portion.
In an embodiment, the light diffusing structure is a stripe structure arranged to extend in the optical axis direction of the light incident portion.
In another aspect, an illumination and/or signaling device is provided that includes a light guide according to an embodiment of the present utility model.
In a further aspect, a motor vehicle is provided comprising a light guide according to an embodiment of the utility model or a lighting and/or signalling device according to an embodiment of the utility model.
Drawings
Fig. 1 shows a perspective view of a light guide according to an embodiment of the utility model.
Fig. 2 shows another angular perspective view of a light guide according to an embodiment of the utility model.
Fig. 3 shows a further angular perspective view of a light guide according to an embodiment of the utility model.
Fig. 4 is a partial enlarged view illustrating the light guide of fig. 1 according to an embodiment of the present utility model.
Detailed Description
The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of embodiments of the present utility model with reference to the accompanying drawings is intended to illustrate the general inventive concept and should not be taken as limiting the utility model.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.
Fig. 1 to 3 show perspective views of different angles of a light guide 100 according to an embodiment of the present utility model. As shown in fig. 1 to 3, the light guide device 100 includes at least one light incident portion 10, at least one light reflecting portion 20, and a light emitting portion 30. According to an embodiment of the present utility model, the light incident portion 10 is configured to receive light from a light source. Each of the at least one light reflecting portion 20 corresponds to each of the at least one light incident portion 10, respectively, such that the light reflecting portion 20 is configured to receive and reflect a light beam from the light incident portion 10 corresponding thereto. The light emitting portion 30 is configured to emit the light beam reflected via the light reflecting portion 20 in the first direction D1, thereby achieving lighting and illumination effects.
According to an embodiment of the utility model, the light guide 100 further comprises a first reflective surface 110. The first reflective surface 110 is arranged to reflect at least a portion of the light rays to the light reflecting portion 20.
The light from the light source is guided to the first reflection surface 110 via the light incidence part 10 after being incident on the light incidence part 10. The first reflecting surface 110 is configured as a body extending in a first direction connecting the light incident portion 10 and the light guide 100. By way of example, fig. 1-3 show that the first reflective surface 110 is comprised of four surfaces that are angularly connected to one another. However, embodiments of the present utility model are not limited thereto. The four surfaces may receive the light beam reflected from the light incident portion 10 and reflect at least a portion of the light beam to the light reflecting portion 20. According to the embodiment of the present utility model, the light reflection part 20 is arranged to face the light emission part 30, so that the light reflection part 20 can reflect the light beam from the corresponding light incidence part 10 toward the light emission part 30 to emit the light beam in the first direction D1.
On the other hand, in the actual beam path of the light guide 100, a part or a small part of the light beam reflected from the first reflecting surface 110 may be reflected to the second surface 210 in addition to the main optical path P shown in fig. 1. The second surface 210 is configured to connect the light reflection parts 20 corresponding to the two adjacent light incidence parts 10. Each of the at least one second surface 210 may correspond to each of the at least one light incident portion 10, respectively, to receive the light beam reflected from the corresponding light incident portion 10 and guided via the first reflecting surface 110. According to an embodiment of the utility model, the second surface 210 may be configured as a reflective surface to reflect at least a portion of the reflected light beam to the corresponding light reflecting portion 20. In this way, optical efficiency can be improved.
As an example, the second surface 210 is configured to connect the light reflection parts 20 corresponding to two adjacent light incidence parts 10. As shown in fig. 1-3, the second surface 210 is disposed between two adjacent ones of the at least one light reflecting portions 20.
As an example, at least one of the light reflecting part 20, the first reflecting surface 110, and the second surface 210 may be provided with a light diffusing structure. In this way, by providing the light reflecting portion 20 with the light diffusing structure, scattering can be caused to occur at the light reflecting portion 20. Therefore, the distribution uniformity of the emergent light can be increased, and the lighting effect is improved.
On the other hand, by providing the first and second reflective surfaces 110 and 210 with light diffusing structures, light beams may be caused to be scattered at the first and second reflective surfaces 110 and 210 to avoid reflection at the first and second reflective surfaces 110 and 210. In the case where the first and second reflective surfaces 110 and 210 are reflective surfaces, the reflected light beams passing through the first and second reflective surfaces 110 and 210 may intensively travel in a certain direction and thus be intensively reflected to a certain position of the light exit part 30, so that brightness at the position is protruded to cause uneven brightness distribution of the light guide 100. According to an embodiment of the present utility model, by providing the first and second reflective surfaces 110 and 210 with light diffusing structures, light beams can be scattered in a plurality of directions, thereby enriching the traveling paths of the light beams and improving the optical lighting effect and uniformity.
As examples, the light diffusing structure may be a micro pillow structure array, a micro lens array, or a dermatoglyph structure. However, embodiments of the present utility model are not limited thereto, and other suitable light diffusing structures may be used.
As an example, the light incident portion 10 has a collimating structure. As shown in fig. 1 to 3, after the light from the light source is incident on the light incident portion 10, it is collimated into a parallel light beam by the collimating structure and is incident on the light reflecting portion 20. In this way, by providing the light incident portion 10 in a collimating structure, the optical efficiency can be improved, and the illumination effect can be improved.
As an example, the first reflective surface 110 is arranged to extend between the collimating structure and the light reflecting portion 20. As shown in fig. 1 to 3, the first reflecting surface 110 extends upward from the light reflecting portion 20 in a direction perpendicular to the first direction D1 to be connected with the light incident portion 10. Configuring the first reflective surface as a plane may reduce the size of the light incident portion 10, thereby reducing the overall size of the light guiding element 100.
As an example, the light diffusing structure may be a stripe structure arranged to extend in the optical axis direction of the light incident portion 10.
Fig. 4 is a partial enlarged view illustrating the light guide of fig. 1 according to an embodiment of the present utility model. As shown in fig. 1 to 4, the first and second reflective surfaces 110 and 210 may be provided to have a light diffusion structure in a stripe structure. Since the stripe structure is disposed to extend in the optical axis direction of the light incident portion 10, the stripe structure may have substantially the same extending direction as the first reflecting surface 110, so the first reflecting surface 110 may extend substantially parallel to the stripe structure thereof. And as for the second surface 210, since it is disposed obliquely with respect to the optical axis direction of the light incident portion 10, the second surface 210 may extend at an angle to each other with its bar-shaped structure.
In this way, by realizing the light diffusing action in the stripe-shaped structure, it is possible to scatter light only in the transverse direction of the optical axis direction of the light incident portion 10, without scattering in the optical axis direction. Thus, the degree of dispersion of light in an undesired direction can be reduced while ensuring the uniformity of dispersion of light, thereby ensuring illumination brightness and illumination effect. In addition, the manufacturing mold of the bar-shaped structure is simple and easy to process, so that the cost can be reduced and the manufacturing cycle can be accelerated.
As an example, the light guide 100 may be made of transparent glass, resin or plastic material, for example PMMA (polymethyl methacrylate) or polycarbonate.
The light guide 100 according to embodiments of the present utility model may be used in any lighting and/or signaling device, as an example. The lighting and/or signaling devices may include any type of motor vehicle lights and/or signaling lights, as example headlamps, daytime running lights, center high-mounted brake lights, turn lights, position lights, tail brake lights, and the like. The light guide 100 according to an embodiment of the present utility model may also be used in fields other than vehicle lamps, as exemplified street lamps, advertisement lamps, etc.
Although the present utility model has been described with reference to the accompanying drawings, the examples disclosed in the drawings are intended to illustrate preferred embodiments of the utility model and are not to be construed as limiting the utility model.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

Claims (10)

1. A light guide (100), comprising:
at least one light incidence portion (10), the light incidence portion (10) being configured to receive light rays from a light source;
at least one light reflecting portion (20), the light reflecting portion (20) being configured to receive and reflect a light beam from a corresponding light incident portion (10);
a light exit section (30), the light exit section (30) being configured to exit the light beam reflected via the light reflection section (20) in a first direction (D1);
the light guide (100) further comprises a first reflective surface (110), the first reflective surface (110) being arranged to reflect at least a portion of the light rays to the light reflecting portion (20).
2. A light guide arrangement according to claim 1, characterized in that the first reflective surface (110) is configured to connect the light entrance section (10) and a body of the light guide arrangement (100) extending in a first direction.
3. A light guide arrangement according to claim 1, characterized in that the light guide arrangement (100) further comprises a second surface (210), the second surface (210) being configured to connect light reflecting portions (20) corresponding to two adjacent light entrance portions (10).
4. A light guide arrangement according to claim 3, characterized in that at least one of the light reflecting portion (20), the first reflecting surface (110) and the second surface (210) is provided with a light diffusing structure.
5. The light guide of claim 4, wherein the light diffusing structure is an array of micro-pillows, an array of micro-lenses, or a dermatoglyph structure.
6. A light guide arrangement according to claim 1, characterized in that the light entrance section (10) has a collimating structure.
7. A light guide arrangement according to claim 6, characterized in that the first reflective surface (110) is arranged to extend between the collimating structure and the light reflecting portion (20).
8. A light guide arrangement according to claim 4, characterized in that the light diffusing structure is a bar-shaped structure arranged to extend in the direction of the optical axis of the light entrance section (10).
9. An illumination and/or signalling device, characterized in that it comprises
The light guide (100) according to any one of claims 1 to 8.
10. Motor vehicle, characterized by comprising a light guide (100) according to any of claims 1 to 8 or a lighting and/or signalling device according to claim 9.
CN202321351089.7U 2023-05-30 2023-05-30 Light guide, lighting and/or signalling device and motor vehicle Active CN220338282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321351089.7U CN220338282U (en) 2023-05-30 2023-05-30 Light guide, lighting and/or signalling device and motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321351089.7U CN220338282U (en) 2023-05-30 2023-05-30 Light guide, lighting and/or signalling device and motor vehicle

Publications (1)

Publication Number Publication Date
CN220338282U true CN220338282U (en) 2024-01-12

Family

ID=89447790

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321351089.7U Active CN220338282U (en) 2023-05-30 2023-05-30 Light guide, lighting and/or signalling device and motor vehicle

Country Status (1)

Country Link
CN (1) CN220338282U (en)

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