CN219014110U - Optical illumination assembly, lighting device and motor vehicle - Google Patents

Optical illumination assembly, lighting device and motor vehicle Download PDF

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Publication number
CN219014110U
CN219014110U CN202223549835.1U CN202223549835U CN219014110U CN 219014110 U CN219014110 U CN 219014110U CN 202223549835 U CN202223549835 U CN 202223549835U CN 219014110 U CN219014110 U CN 219014110U
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CN
China
Prior art keywords
light
light guide
illumination assembly
optical illumination
guide
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Active
Application number
CN202223549835.1U
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Chinese (zh)
Inventor
胡强
陈琛
王雪飞
李伟
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 Ichikoh China Auto Lighting Co Ltd
Original Assignee
Valeo Ichikoh China Auto Lighting Co Ltd
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Publication date
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Priority to CN202223549835.1U priority Critical patent/CN219014110U/en
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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
    • 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
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/241—Light guides characterised by the shape of the light guide of complex shape
    • 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
    • F21S43/26—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
    • F21S43/20—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
    • F21S43/27—Attachment thereof

Abstract

The utility model discloses an optical illumination assembly, a lighting device and a motor vehicle. The optical illumination assembly (100) includes a light source (10), a first light guide (20), and a second light guide (30). The light source emits light rays towards the first light guide piece; the first light guide member guides light from the light source toward the second light guide member; the second light guide includes a light incident portion (40), a first light emitting portion (310), and a second light emitting portion (320) adjacent to the first light emitting portion, the light incident portion receiving light from the first light guide, and being arranged opposite to the first light emitting portion in a main emitting direction (D), being arranged offset from the second light emitting portion in a direction transverse to the main emitting direction (D), a first portion of light (P1) entering the light incident portion being emitted from the first light emitting portion in the main emitting direction (D), and a second portion of light (P2) entering the light incident portion being guided to the second light emitting portion and being emitted from the second light emitting portion in the main emitting direction (D).

Description

Optical illumination assembly, lighting device and motor vehicle
Technical Field
The utility model relates to the technical field of car lamps, in particular to an optical illumination assembly, illumination equipment and a motor vehicle.
Background
Lighting devices for providing light for illumination and/or optical indication functions are widely used in various fields, for example in motor vehicles for securing safe driving by means of lighting devices such as car lights. 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.
With the development of lamp technology, some host factories desire lamps with an enlarged light exit area to enhance optical indication functions and/or to achieve styling requirements, in which case how to design the light path becomes a challenge.
Disclosure of Invention
The object of the present utility model is to provide an optical irradiation assembly, a lighting device and a motor vehicle, which can provide an enlarged light extraction area and which is high in optical efficiency and good in optical distribution uniformity.
In one aspect, embodiments of the present utility model provide an optical illumination assembly comprising a light source, a first light guide, and a second light guide, wherein the light source is configured to emit light toward the first light guide; the first light guide is configured to guide light from the light source toward the second light guide; the second light guide includes a light incident portion configured to receive light from the first light guide, a first light emitting portion, and a second light emitting portion adjacent to the first light emitting portion, and arranged opposite to the first light emitting portion in a main emission direction of the optical irradiation assembly, and arranged offset from the second light emitting portion in a direction transverse to the main emission direction of the optical irradiation assembly, a first portion of light entering the light incident portion being emitted from the first light emitting portion in the main emission direction of the optical irradiation assembly, and a second portion of light entering the light incident portion being guided to the second light emitting portion and emitted from the second light emitting portion in the main emission direction of the optical irradiation assembly.
In an embodiment, the light intensity of the second portion of light is smaller than the light intensity of the first portion of light to form the ambient light of the first portion of light.
In an embodiment, the second light guide includes a scattering light guide, and the second portion of the light is guided to the second light exit portion by scattering particles inside the scattering light guide.
In an embodiment, the second light exit portion is in the same plane as the first light exit portion or is inclined with respect to the first light exit portion.
In an embodiment, the second light guide includes a light guide plate.
In an embodiment, the light incident portion of the second light guide member and the first light guide member are connected or arranged opposite to each other in a main emission direction of the optical irradiation assembly.
In an embodiment, the first light guide comprises a reflector or a transparent collimator.
In an embodiment, the first light guide and the second light guide are a single piece.
In another aspect, embodiments of the present utility model provide a lighting device comprising an optical illumination assembly according to embodiments of the present utility model.
In a further aspect, embodiments of the present utility model provide a motor vehicle comprising an optical illumination assembly according to an embodiment of the present utility model, or a lighting device according to an embodiment of the present utility model.
Drawings
Fig. 1 shows a schematic view of an optical illumination assembly according to an embodiment of the utility model.
Fig. 2 shows a schematic view of an optical illumination assembly according to another embodiment of the utility model.
Fig. 3 shows a schematic view of an optical illumination assembly according to a further embodiment of the utility model.
Fig. 4 shows a perspective view of an optical illumination assembly according to an embodiment of the utility model.
Fig. 5 illustrates a lighting effect diagram of an optical illumination assembly 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. 1-3 illustrate an optical illumination assembly 100 according to various embodiments of the utility model. Fig. 4 shows a perspective view of an optical illumination assembly 100 according to an embodiment of the utility model. As shown in fig. 1 to 4, the optical irradiation assembly 100 includes a light source 10, a first light guide 20, and a second light guide 30.
According to an embodiment of the present disclosure, the light source 10 is configured to emit light towards the first light guide 20. The first light guide 20 is configured to receive light from the light source 10 and guide the light from the light source 10 toward the second light guide 30.
The second light guide 30 includes a light incident portion 40, a first light emitting portion 310, and a second light emitting portion 320. The light-in portion 40 is configured to receive light from the first light guide 20 such that light from the first light guide 20 may enter the second light guide 30 via the light-in portion 40 and then be emitted outward from the first light-emitting portion 310 and the second light-emitting portion 320 of the second light guide 30. As shown in fig. 1-3, the first light emitting portion 310 and the second light emitting portion 320 both emit light along a main emitting direction D, thereby forming the main emitting direction D of the optical irradiation assembly 100. According to an embodiment of the present disclosure, light from the optical irradiation assembly 100 may be emitted outward along the main emission direction D, thereby achieving lighting. As an example, the main exit direction D may be a direction along which light is desired to travel to form a desired lighting effect, or a main exit direction specified by regulations, such as, but not limited to, a length direction of a vehicle. For example, the main exit direction D may be changed by adjusting the structure of the first light guide 20, the arrangement of the first light guide 20, or the arrangement of the second light guide 30, or the like. However, embodiments of the present disclosure are not limited thereto.
As shown in fig. 1-3, the first light emitting portion 310 in the second light guide 30 is adjacent to the second light emitting portion 320. That is, the first light emitting portion 310 and the second light emitting portion 320 may be connected to each other, which allows light emitted from the optical irradiation assembly 100 via the first light emitting portion 310 and the second light emitting portion 320 to form a continuous lighting pattern, thereby collectively achieving an overall lighting effect.
Further, the incident portion 40 is configured to be arranged opposite to the first light emitting portion 310 in the main emitting direction D of the optical irradiation assembly 100, and to be arranged offset from the second light emitting portion 320 in a direction transverse to the main emitting direction D of the optical irradiation assembly 100. As shown in fig. 1 to 3, the first light emitting portion 310 is arranged opposite to the incident portion 40 in the main emitting direction D such that light entering the second light guide 30 from the incident portion 40 can be directly emitted from the first light emitting portion 310. Further, as described above, the first light emitting portion 310 adjoins the second light emitting portion 320, which makes it necessary that the second light emitting portion 320 cannot be arranged opposite to the incident portion 40 in the main emitting direction D, but may form a diagonal arrangement with the incident portion 40, i.e., both are arranged offset from each other in a direction transverse to the main emitting direction D. Thus, the incident light from the incident portion 40 needs to reach the second light emitting portion 320 via a further guiding action of the second light guide 30, and to be emitted from the second light emitting portion 320.
Specifically, the first portion of the light rays P1 entering the incident portion 40 may be emitted from the first light emitting portion 310 along the main emitting direction D of the optical irradiation assembly 100. The second portion of the light rays P2 entering the incident portion 40 may be guided to the second light emitting portion 320 and emitted from the second light emitting portion 320 along the main emitting direction D of the optical irradiation assembly 100. In this way, a part of the light from the light source 10 is emitted from the first light emitting portion 310, and another part of the light from the light source 10 is guided to and emitted from another light emitting portion (i.e., the second light emitting portion 320) different from the first light emitting portion 310. Thus, by changing the traveling direction (i.e., the optical path) of a part of the light source 10, the light-emitting area is enlarged, so that the formed lighting pattern has an increased illumination area, thereby achieving a desired lighting modeling effect. Further, as described above, the first light emitting portion 310 and the second light emitting portion 320 are arranged adjacent to each other and each emit light along the main emission direction D, which enables an overall lighting pattern with continuity to be achieved while increasing the light emitting area.
As an example, the light intensity of the second partial light ray P2 is smaller than the light intensity of the first partial light ray P1 to form the ambient light of the first partial light ray P1. Fig. 5 shows a lighting effect diagram of the optical irradiation assembly 100 according to an embodiment of the present utility model. As shown in fig. 5, the lighting pattern formed by the optical irradiation assembly 100 includes a first light emitting region Z1 and a second light emitting region Z2. The first light emitting region Z1 may be a lighting region formed by the light emitted from the first light emitting portion 310, and the second light emitting region Z2 may be a lighting region formed by the light emitted from the second light emitting portion 320. Obviously, as shown in fig. 5, the second light-exiting zone Z2 is shown darker, while the first light-exiting zone Z1 is shown brighter, i.e. the light intensity of the second light-exiting zone Z2 is smaller than the light intensity of the first light-exiting zone Z1. In this way, a lighting pattern with a brightness difference may be formed using a portion of the light (e.g., the second portion of the light P2) of the existing light source 10 without adding an additional light source to satisfy a desired function or lighting requirement, or a specific lighting effect, such as an atmosphere lamp effect, may be achieved.
As an example, the second light guide 30 may include a diffusion light guide. The second portion of the light P2 is guided to the second light emitting portion 320 by the scattering particles 330 inside the scattering light guide. As shown in fig. 1 to 3, the second light guide 30 may be a scattering light guide including scattering particles 330 therein. The second portion of the light P2 from the incident part 40 may be scattered by the scattering particles 330, and thus the portion of the light may be guided to the second light emitting part 320 and emitted from the second light emitting part 320. In this example, by making the second light guide 30 include the scattering particles 330, a part of the light source 10 may be caused to change its original light path while being guided to exit from an exit portion (e.g., the second light exit portion 320) different from an exit portion (e.g., the first light exit portion 310) corresponding to the original light path by the effect of scattering, thereby achieving an expansion of the light area. In addition, the scattering particles 330 provide the second light guide 30 with excellent light diffusion characteristics to achieve a very uniform spot lighting effect. As a non-limiting example, this type of light guide may be chosen from, for example, polymethyl methacrylate (PMMA), such as the light guides identified as LEDs 8N, LD, LD24, LD48, LD96, or Polycarbonate (PC), such as the light guide identified as EL2245, the color of which may be selected as desired, for example, but not limited to, colorless, pink, red, and the like.
As an example, the second light emitting portion 320 and the first light emitting portion 310 may be arranged in the same plane. As shown in fig. 1 or 3, the second light emitting part 320 and the first light emitting part 310 may be arranged to make the second light guide 30 in a straight state without bending. That is, the second light emitting portion 320 is in the same plane as the first light emitting portion 310. Thus, the second portion of the light rays P2 can be more efficiently guided to the second light emitting portion 320, thereby improving the illumination effect of the second light emitting region Z2 of the optical irradiation assembly 100 and increasing the optical efficiency. As another example, the second light emitting part 320 may be arranged to be inclined with respect to the first light emitting part 310. As shown in fig. 2, the second light emitting part 320 and the first light emitting part 310 may be arranged such that there is a bend in the second light guide 30. That is, the first light emitting portion 310 and the second light emitting portion 320 are not in the same plane, but may have an included angle therebetween. In this manner, the optical illumination assembly 100 according to the present disclosure may be made to better fit surrounding structures, thereby achieving proper connection and assembly with the surrounding structures, thus improving structural stability. In addition, the light-emitting area can be enlarged under the condition that the surrounding structure is not changed too much, so that the required lighting modeling is realized.
As an example, the second light guide 30 may include a light guide plate. As shown in fig. 1 to 3, the second light guide 30 is formed by using a light guide plate. However, embodiments of the present disclosure are not limited thereto.
As an example, the light entrance portion 40 of the second light guide 30 is arranged to be connected or opposite to the first light guide 20 in the main exit direction D of the optical irradiation assembly 100. Also, the first light guide 20 may include a reflector or a transparent collimator (such as the collimators shown in fig. 1 to 3). Fig. 1-2 show diagrams of an embodiment in which the light-entering portion 40 is connected with the first light guide 20 in the main exit direction D, and fig. 3 shows diagrams of an embodiment in which the light-entering portion 40 is arranged opposite to the first light guide 20 in the main exit direction D.
Specifically, the arrangement of the light-entering portion 40 and the first light guide 20 may be selected according to the type of the first light guide 20. For example, in the case where the first light guide 20 is configured as a reflector, the reflector is configured to receive the light emitted from the light source 10 and reflect the light to the light incident portion 40 of the second light guide 30. At this time, it is generally necessary to dispose the first light guide 20 as a reflector at a distance (i.e., in a relative arrangement) from the light incident portion 40 to satisfactorily achieve the reflection. For another example, in case the first light guide 20 is configured as a transparent collimator, the transparent collimator may be arranged in connection with the light entrance section 40, since this does not affect the collimating effect of the collimator. Furthermore, this arrangement may also result in a compact, reduced footprint optical illumination assembly 100.
As an example, the first light guide 20 and the second light guide 30 may be a single piece. In this way, the manufacturing process can be simplified, product uniformity is facilitated, and structural stability of the optical illumination assembly is improved. However, the embodiments of the present utility model are not limited thereto, and for example, the first light guide 20 and the second light guide 30 may be manufactured separately.
The second light guide 30 may be made of transparent glass, resin or plastic material, for example, PMMA (polymethyl methacrylate) or polycarbonate.
By way of example, the second light guide 30 may be supported or suspended by any suitable means known for holding optical elements, by way of example a stand, boom, or the like.
An optical illumination assembly according to an embodiment of the 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, center high-mounted brake lights, turn lights, position lights, tail brake lights, and the like. The light guide according to an embodiment of the present utility model may also be used in fields other than vehicle lamps, as example 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. An optical illumination assembly (100), characterized in that the optical illumination assembly (100) comprises a light source (10), a first light guide (20) and a second light guide (30), wherein:
-the light source (10) is configured to emit light towards the first light guide (20);
the first light guide (20) is configured to guide light from the light source (10) towards the second light guide (30);
the second light guide (30) comprises a light entrance portion (40), a first light exit portion (310) and a second light exit portion (320) adjacent to the first light exit portion (310), the light entrance portion (40) being configured to receive light from the first light guide (20), and being arranged opposite the first light exit portion (310) in a main exit direction (D) of the optical illumination assembly (100), being arranged offset from the second light exit portion (320) in a direction transverse to the main exit direction (D) of the optical illumination assembly (100), a first portion of light rays (P1) entering the light entrance portion (40) exiting from the first light exit portion (310) in the main exit direction (D) of the optical illumination assembly (100), and a second portion of light rays (P2) entering the light entrance portion (40) being guided to the second light exit portion (320) and exiting from the second light exit portion (320) in the main exit direction (D) of the optical illumination assembly (100).
2. The optical illumination assembly (100) of claim 1, wherein the light intensity of the second portion of light rays (P2) is less than the light intensity of the first portion of light rays (P1) to form ambient light of the first portion of light rays (P1).
3. The optical illumination assembly (100) according to claim 2, wherein the second light guide (30) comprises a scattering light guide, the second portion of light rays (P2) being guided to the second light exit portion (320) by scattering particles (330) inside the scattering light guide.
4. The optical illumination assembly (100) according to claim 2, wherein the second light exit portion (320) is in the same plane as the first light exit portion (310) or is inclined with respect to the first light exit portion (310).
5. The optical illumination assembly (100) of claim 1, wherein the second light guide (30) comprises a light guide plate.
6. The optical illumination assembly (100) according to any one of claims 1 to 5, wherein the light entry portion (40) of the second light guide (30) is connected or arranged opposite to the first light guide (20) in a main exit direction (D) of the optical illumination assembly (100).
7. The optical illumination assembly (100) according to claim 6, wherein the first light guide (20) comprises a reflector or a transparent collimator.
8. The optical illumination assembly (100) of claim 1, wherein the first light guide (20) is integral with the second light guide (30).
9. A lighting device, characterized by comprising an optical illumination assembly (100) according to any one of claims 1-8.
10. A motor vehicle characterized by comprising an optical illumination assembly (100) according to any of claims 1-8, or a lighting device according to claim 9.
CN202223549835.1U 2022-12-28 2022-12-28 Optical illumination assembly, lighting device and motor vehicle Active CN219014110U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223549835.1U CN219014110U (en) 2022-12-28 2022-12-28 Optical illumination assembly, lighting device and motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223549835.1U CN219014110U (en) 2022-12-28 2022-12-28 Optical illumination assembly, lighting device and motor vehicle

Publications (1)

Publication Number Publication Date
CN219014110U true CN219014110U (en) 2023-05-12

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Country Status (1)

Country Link
CN (1) CN219014110U (en)

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