CN217763273U - Optical assembly, lighting and/or signalling device, and motor vehicle - Google Patents

Abstract

The present disclosure relates to an optical assembly (100), a lighting and/or signalling device and a motor vehicle, the optical assembly (100) comprising: a first light source (4) and a second light source (1); a reflector (2) having a reflective surface (21) configured to reflect light from the first light source (4) and the second light source (1); and a light guide (3) that receives light from the second light source (1) and emits it toward the reflector (2), the first light source (4) and the light guide (3) being arranged such that light from the first light source (4) is incident on the reflection surface (21) through a through hole (35) formed in the light guide (3) and then reflected into a first light beam, the second light source (1) and the light guide (3) being arranged such that light from the second light source (1) is transmitted through the light guide (3) and incident on the reflection surface (21) and then reflected into a second light beam different from the first light beam.

Description

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

Technical Field

Embodiments of the present disclosure relate to an optical assembly, a lighting and/or signaling device, and a motor vehicle.

Background

With the development of technology and social progress, the demand of people for optical lighting or signaling devices is no longer limited to the function of providing lighting or signaling lights. There is thus an increasing demand for personalization of optical lighting or signaling devices, such as for example the lamps of motor vehicles, where it may be desired, for example, that the lighting or signaling light contain certain information or patterns to meet the requirements of personalized customization, while at the same time it is desired to present a specific lighting effect.

SUMMERY OF THE UTILITY MODEL

Embodiments of the present disclosure provide an optical assembly, a lighting and/or signaling device, and a motor vehicle to address at least one problem in the prior art.

According to an embodiment of an aspect of the present disclosure, there is provided an optical assembly including: a first light source and a second light source configured to emit light, respectively; a reflector having a reflective surface configured to reflect light from the first light source and the second light source; and a light guide member configured to guide light from a second light source to the reflector, and provided with a light incident surface configured to receive light from the second light source and a light exit surface that exits the light from the second light source toward the reflector, the light exit surface being arranged to face the reflector. The first light source and the light guide are arranged such that light from the first light source is incident on the reflective surface through a through hole formed in the light guide and then reflected into a first light beam, and the second light source and the light guide are arranged such that light from the second light source is transmitted through the light guide and incident on the reflective surface and then reflected into a second light beam different from the first light beam.

According to an embodiment of the present disclosure, the light incident surface of the light guide is at least a portion of a surface of the light guide different from the light exit surface, and light from the second light source is incident into the light guide at the light incident surface and is transmitted to the light exit surface via the light guide.

According to a further embodiment of the present disclosure, the light incident surface of the light guide is a lateral surface of the light guide.

According to still further embodiment of the present disclosure, a light guide guiding light from the second light source to be incident to the light guide is disposed between the second light source and the light guide. For example, the light guide is integrally formed with the light guide.

According to a further embodiment of the present disclosure, the light incident surface of the light guide is a back surface of the light guide opposite to the light exit surface.

According to a further embodiment of the present disclosure, the first light source and the second light source are located on the same or different planes.

According to a further embodiment of the present disclosure, the light guide further includes a light adjusting structure disposed on the back surface.

According to one embodiment of the present disclosure, the light guide is made of a transparent material.

According to a further embodiment of the present disclosure, the light incident surface of the light guide is coated with a fluorescent material.

According to one embodiment of the present disclosure, the light guide further comprises a layer of transflective material disposed at the back surface.

According to an embodiment of another aspect of the present disclosure, there is provided a lighting and/or signaling device comprising: an optical assembly according to the foregoing.

According to an embodiment of yet another aspect of the present disclosure, there is provided a motor vehicle including: a lighting and/or signalling device according to the foregoing.

According to the optical assembly and the illumination and/or signal indication device of the embodiment of the disclosure, the optical microstructures arranged on the back surface of the light guide member opposite to the light emitting surface can be utilized to obtain the required emergent light intensity and form, and the emergent light can be homogenized.

Drawings

Fig. 1 illustrates a perspective view of an optical assembly according to an embodiment of the present disclosure.

Fig. 2 (a) shows a schematic structural view of an optical assembly according to an exemplary embodiment of the present disclosure, and a lighting and/or signal indicating device comprising the optical assembly, wherein the propagation path of light is schematically shown.

Fig. 2 (b) shows a schematic structural view of an optical assembly according to another exemplary embodiment of the present disclosure, and a lighting and/or signaling device comprising the optical assembly, wherein the propagation path of light is schematically shown.

Fig. 2 (c) shows a schematic structural view of an optical assembly according to yet another exemplary embodiment of the present disclosure, and a lighting and/or signaling device comprising the optical assembly, wherein the propagation path of light is schematically shown.

Detailed Description

To more clearly illustrate the objects, aspects and advantages of the present disclosure, embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It is to be understood that the following description of the embodiments is intended to illustrate and explain the general concepts of the disclosure and should not be taken as limiting the disclosure. In the specification and drawings, the same or similar reference numerals refer to the same or similar parts or components. The figures are not necessarily to scale and certain well-known components and structures may be omitted from the figures for clarity.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "a" or "an" does not exclude a plurality. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "top" or "bottom", etc. are used merely to indicate relative positional relationships, which may change when the absolute position of the object being described changes. When an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

Fig. 1 illustrates a perspective view of an optical assembly 100 according to an embodiment of the present disclosure.

According to one general technical concept of embodiments of the present disclosure, as shown, for example, there is provided an optical assembly 100, such as an optical assembly 100 mounted to a head lamp of a motor vehicle, which is intended to provide: a first light source 4, for example a high beam HB/low beam LB, acting as a main light source; and a second light source 1, e.g. a second light source 1 acting as a signaling and/or decorative light other than HB/LB. Thus, typically, in the optical assembly 100, the second light source 1 shares a lamp cover and a reflecting member 2 with, for example, the HB/LB as the first light source 4, but does not generally share a collimator, a light distributing member, or the like. In a particular embodiment, as shown, by way of example, the optical assembly 100 comprises: a first light source 4 and a second light source 1, which are respectively configured to emit light; a reflector 2 having a reflection surface 21 configured to reflect light from the first light source 4 and the second light source 1, respectively, outward; and a light guide 3 located between the second light source 1 and the reflector 2, the light guide 3 including a light incident surface 30 and a light emitting surface 31. The second light source 1 provides light coupled into the light entrance face 30, the light entrance face 30 is configured to receive light from the second light source 1, and the light from the second light source 1 is emitted from the light guide 3 toward the reflector 2 at the light exit face 31.

In a further embodiment, by way of example, the light exit surface 31 is arranged facing the reflector 2.

In the exemplary embodiment of the present disclosure, as an example, the first light source 4 and the light guide 3 are arranged such that light from the first light source 4 is incident on the reflection surface 21 through a through hole 35 formed in the light guide 3 and then reflected into a first light beam.

In the exemplary embodiment of the present disclosure, as an example, the second light source 3 and the light guide 3 are arranged such that the light from the second light source 1 is transmitted through the light guide 3 to be incident on the reflection surface 21 and then reflected into a second light beam different from the first light beam.

In the exemplary embodiment of the present disclosure, as an example, the light incident surface 30 of the light guide 3 is at least a part of a surface of the light guide 3 different from the light exit surface 31, and the light from the second light source 1 is incident into the light guide at the light incident surface 30 and is propagated to the light exit surface 31 via the light guide 3. Specifically, for example, a lateral surface 32 of the light guide 3 (the lateral surface 32 is located laterally to the light exit surface 31), or a back surface 33 opposite to the light exit surface 31 serves as the light entrance surface 30.

Fig. 2 (a) to 2 (c) show schematic structural views of the optical assembly 100 according to different embodiments of the present disclosure, in which different positioning manners of the first light source 4 and the second light source 1 with respect to the light guide 3 are shown.

As an example, the first light source 4 and the second light source 1 are located on the same or different planes.

As an example, the first light source 4 and the second light source 1 include a color LED or a monochrome LED.

In some more specific embodiments, for example, as shown in fig. 2 (a) and 2 (b), the light incident surface 30 of the light guide 3 is a lateral surface 32 of the light guide 3 in a lateral direction with respect to a normal direction of the light exit surface 31.

In further specific embodiments, for example, as shown in fig. 2 (b), a light guide 6 is additionally disposed between the second light source 1 and the light guide 3, and the light guide 6 is configured to guide light from the second light source 1 to be incident on (the lateral surface 32 of the light guide 3 serving as the light incident surface 30). As an example, the light guide 6 is integrally formed with the light guide 3, or separately constructed and then attached together.

In other more specific embodiments, for example, as shown in fig. 2 (c), the light incident surface 30 of the light guide 3 is a back surface 33 of the light guide disposed opposite the light exit surface 31.

In an exemplary embodiment of the present disclosure, the second light source 1 includes, for example, a white light or monochromatic light emitting diode, and may be other second light sources 1 known in the art, such as an incandescent lamp, etc.

In the exemplary embodiment of the present disclosure, as an example, the reflector 2 has a shape that is concave as a whole, and includes a plurality of stripe regions juxtaposed along the normal direction, the plurality of stripe regions being configured to form outgoing light having a desired cutoff line.

In a further embodiment of the present disclosure, as an example, the reflecting surface 21 of the reflector 2 is formed in an arc-shaped concave shape, more specifically, in a parabolic shape formed by moving at least a part of a parabola along a straight or curved trajectory.

In embodiments of the present disclosure, for example, as shown in the figures, the light guide 3 is, for example, an elongated light guide extending in a single direction. For example, the light guide 3 includes a transparent body extending in a single specific direction (becoming the main direction of the light guide 3). It may extend in a straight line, a curved line or a combination of both. The cross-section thereof may take various shapes, such as circular, elliptical or polygonal.

As an example, the light guide 3 may be made of a transparent material. For example, the light guide is a unitary piece made of a single transparent glass, resin or plastic transparent material, such as Polymethylmethacrylate (PMMA), polymethylmethacrylate (PMA) or polycarbonate, inorganic or organic glass. The material can also be other light-transmitting materials to form a light-transmitting integrated piece.

In an embodiment of the present disclosure, the light guide 3 further comprises, for example, a light-adjusting structure 34 disposed on the back surface 33. As an example, the light-adjusting structure 34 may be configured to reduce the amount of light emitted from the light exit face 31.

In the embodiment of the present disclosure, regarding the light adjusting structure 34 included in the light guiding member 3, which is disposed on the back surface 33 and configured to reduce the light flux emitted from the light emitting surface 31, the light adjusting structure 34 includes, for example, an optical microstructure composed of at least one of the following: a plurality of hemispherical or conical protrusions, a plurality of prismatic protrusions, a plurality of abrasive granular protrusions, a plurality of plateaus with trapezoidal cross-section, or a plurality of concave recessed dots. However, the present disclosure is not limited thereto, and the form of any light-reducing optical microstructure that can serve as the light-adjusting structure 34 is not limited, as long as the light flux at the site can be reduced to obtain the desired light output flux and form, whether by scattering or emergence there from.

In a further embodiment, the distribution density of such optical microstructures of the light guide 3, which are intended for light reduction, increases with increasing distance from the second light source 1, as an example. In other words, the distribution density of the light-reducing optical microstructures in the region of the light guide 3 close to the second light source 1 is smaller than the distribution density of the light-reducing optical microstructures in the region of the light guide 3 far from the second light source 1.

In a further embodiment, additionally or alternatively, by way of example, the area of the orthographic projection of the light-attenuating optical microstructures of the light guide 3 on the rear face 33 of the light guide increases with increasing distance of the light-attenuating optical microstructures from the second light source 1.

Since the light intensity of the area close to the second light source 1 is larger, the uniform distribution of the intensity of the light emitted from the light guide member is facilitated by the way of gradually increasing the distribution density and/or the area of the above-mentioned dimming optical microstructure with the distance from the second light source 1, and the emitted light can be homogenized so as to provide uniform light emission.

In alternative embodiments, for example, the optical microstructures of the light guide 3 may also be selected to be arranged in an array.

By the above arrangement, in particular the light-modifying structure 34 on the back side 33 of the light guide 3, for example, acts as a light extraction structure such that light propagating in the light guide 3 is extracted from the back side 33 of the light guide 3 upon reaching it in a direction away from the intended exit direction of the light, or as a light-diffusing structure that divergently changes the ideal direction of propagation of the light (without providing such a light-modifying structure 34), thereby acting to reduce the light flux, and even being configured to shape the light, for example, to achieve light with the intended wavefront and light flux, resulting in a good illuminated appearance of the emitted light.

In a further embodiment, for example, the surface of the light guide 3 acting as the light entrance face 30 is coated with a fluorescent material for receiving light from the second light source 1. The fluorescent material is applied as fluorescent substance particles on the light incident surface 30 in an initial state, for example, and is cured into a solid state in a subsequent curing process. In the embodiment of the present disclosure, the fluorescent material is used to convert the light emitted from the second light source 1 into other color light. As a specific example, for example, the second light source 1 includes and is distributed to emit at least two LED chips of different monochromatic lights, and the fluorescent material converts blue light emitted from one LED chip serving as the second light source 1 into yellow light and then mixes with blue light emitted from the other LED chip to generate white light; or blue light emitted from the blue LED is incident on the yellow fluorescent material to generate white light. The fluorescent material includes, but is not limited to, silicate (silicate), YAG (yttrium aluminum garnet), KSF (fluoride), etc., and also includes photoluminescent material such as QD (quantum dot).

In an alternative embodiment, for example, the light guide 3 is a unitary piece made of a fluorescent material, typically a transparent fluorescent ceramic material, for example.

In a specific embodiment, as an example, light guide 3 further includes a plurality of light extraction structures distributed on light exit surface 31, where light propagating in light guide 3 exits toward reflector 2.

In a further embodiment, the light exit surface 31 of the light guide 3 is provided with the plurality of light extraction structures, which are arranged towards the reflector 2 such that the light totally reflected in the light guide 3 is extracted from the light guide 3, for example via the plurality of light extraction structures, and directed towards the reflector 2 for subsequent reflection exit. Examples of the light extraction structure include a plurality of protrusions formed integrally on the light exit surface 31 in a discrete arrangement, for example, in the shape of hemispherical bumps or conical bumps, facilitating the light to be guided out from the inside of the light guide member 3. Of course, the shape of the plurality of light extraction structures is not limited thereto, and other shapes, such as a projection having a trapezoidal cross section, may be selected; alternatively, the light extraction structure may be a depressed dot that is depressed from the light exit surface 31 of the light guide 3. The shape of the light extraction structure is not limited as long as light can be extracted from the light guide 3.

Also, losses due to undesired light extraction are avoided between adjacent light extraction structures, typically by total reflection between the material of the light guide 3 and the external environment, e.g. air. In addition, additional light-blocking optical microstructures may be provided between adjacent light extraction structures of the light exit face 31 for preventing undesired light exit from between adjacent light extraction structures.

According to a specific embodiment, by way of example, the light-blocking optical microstructure comprises a plurality of sawtooth protrusions arranged on the light exit surface 31 of the light guide 3, more specifically distributed between adjacent light extraction structures, each sawtooth protrusion comprising a slope for reflecting light emitted from the interior of the light guide 3 towards the slope back into the light guide 3, preventing light loss there and thus improving light efficiency there. It will be understood by those skilled in the art that the specific form of the optical microstructure is not limited to the serration, and any structure capable of preventing light from being emitted from between adjacent light extraction structures of light exit surface 31 of light guide 3 may be used as the light blocking optical microstructure of the present disclosure.

Optionally, according to an exemplary embodiment, a reflective coating may be further provided on the surface of the light blocking optical microstructures outside the light guide 3, and the reflective coating is made of, for example, a white reflective material or a silver reflective material, so as to further prevent light from exiting from the plurality of light blocking optical microstructures, and improve light efficiency.

In a specific embodiment, depending on the positioning of the second light source 1 with respect to the light guide 3, different surfaces of the light guide 3 serve as the light entrance face 30.

In one example, fig. 2 (a) shows a schematic structural diagram of an optical assembly 100 according to an exemplary embodiment of the present disclosure, in which the propagation path of light is schematically shown. In an exemplary embodiment of the present disclosure, as shown in the figure, the second light source 1 is arranged to abut against the lateral surface 32 of the light guide 3, and the lateral surface 32 of the light guide 3 serves as the light incident surface 30. The light guide 3 has formed therein, for example, a centrally disposed through hole 35 for placement of heat sink and other different first light sources 4.

In this case, the second light source 1 is a side-in type second light source 1 located at the side of the light guide 3.

According to an embodiment of the present disclosure, for example, light emitted from such a side-entry second light source 1 is directly incident inside the light guide 3 from the lateral surface 32 of the light guide 3 adjacent thereto, and then propagates away from the second light source 1 substantially along the extension direction of the light guide 3 (e.g. the aforementioned lateral direction), for example with total reflection at the interface of the light guide 3 with the external environment (e.g. air).

In another embodiment, as shown in fig. 2 (b), a schematic structural diagram of an optical assembly 100 according to other exemplary embodiments of the present disclosure is shown, wherein a propagation path of light is schematically shown. Wherein additionally a light guide 6 is provided between the second light source 1 and the light guide 3, the light guide 6 being for example as shown arranged against a lateral surface 31 of the light guide acting as a light entrance face 30 and being configured to guide light from the second light source 1 to enter the light guide 3. As an example, as shown in fig. 2 (b), the second light sources 1 are arranged opposite and spaced apart from the light guides 6 provided beside the light guide 3, and a centrally provided through hole 35, for example, is formed in the light guide 3 to place a heat sink and other different first light sources 4. In this case (the second light source 1, i.e. the direct-lit second light source 1, positioned sideways), such that light from the second light source 1 is normally incident into the light guide 6; and as shown in the figure, for example, the light guide 6 is provided with an obliquely arranged side edge (for example, a critical angle of total reflection with respect to the light exit surface 31 and the back surface 33), at which the incident light realizes total reflection incidence, propagates through the light guide 6, and then is incident into the light guide 3 at an interface where the light guide 6 and a lateral surface 32 of the light guide 3 serving as a light incident surface 30 abut against each other, thereby obtaining an incident light effect substantially equivalent to that of the side-entry type second light source 1 shown in fig. 2 (a). This arrangement of the light guide 6 additionally provided in the lateral direction in combination with the direct type second light source 1 opposed thereto results in total reflection incidence at the lateral surface 32 of the light guide 3 due to the total reflection critical angle setting at the inclined edge of the light guide, achieving substantially equivalent incident light to the lateral type second light source 1, but achieving a more compact structure.

In a further alternative example, fig. 2 (c) respectively shows a schematic structural diagram of the optical assembly 100 according to other exemplary embodiments of the present disclosure, wherein the propagation path of light is schematically shown. As shown in the figure, the second light source 1 is arranged to be disposed spaced apart from the rear surface 33 of the light guide 3, and the rear surface 33 serves as the light incident surface 30.

As an example, as shown in fig. 2 (c), the second light source 1 is arranged behind the back surface 33 of the light guide 3, and a centrally arranged through hole 35, for example, is formed in the light guide 3 to place a heat sink or even other different second light source 1. In this case, (the second light source 1, i.e., the direct-type second light source 1 positioned on the rear side) such that the light from the second light source 1 is directly projected onto portions at both sides of the rear surface 33 of the light guide 3 (i.e., portions of the rear surface 33 (respectively located at both sides of the center through hole 35) serve as the light incident surface 30).

In the case of the side-in type second light source 1 arrangement as shown in fig. 2 (a) and in the case of the direct type second light source 1 arrangement as shown in fig. 2 (b) substantially equivalent thereto, which is opposed to the oblique side edges of the light guide 6 and which substantially turns into the equivalent side-in type second light source 1 by total reflection incidence at the lateral surfaces 32, the light-reducing optical microstructures as described above may be provided on the back surface 33 of the light guide 3 for reducing the light flux to achieve the desired outgoing light intensity and form.

In case of the arrangement of the direct type second light source 1 positioned at the rear side as shown in fig. 2 (c) as described above, a layer of transflective material may additionally or alternatively be provided on the back surface 33 of the light guiding member 3 for reducing the incident light directly incident on the back surface 33 from the rear, in order to facilitate a low light flux to achieve a desired exit light intensity and morphology.

As in the case of fig. 2 (c), if the combined action of the light-reducing optical microstructures on the back surface 33 of the light guide 3 and the transflective material layer is utilized, the optical microstructures, for example, in the form of convexes and concaves, serve to diffuse incident light in different directions, while the transflective material layer serves to directly attenuate normally incident or near normally incident light, thereby obtaining a combined light-reducing effect.

According to the general concept of the embodiments of the present disclosure, in another aspect of the present disclosure, for example, as shown in fig. 2 (a) to 2 (c), there is also provided a lighting and/or signaling device including: the optical assembly 100 according to the preceding, wherein the second light source 1 acts as a secondary light source different from the first light source 4 (acting as primary light source) and configured to emit a signal indicative light or a decoration light. Wherein the first light source 4 acting as a primary light source and the second light source 1 acting as the secondary light source share the reflector, which reflects the primary lighting light and the signalling or decorative light towards the exterior of the device.

In an exemplary embodiment of the present disclosure, the main light source 4 is, for example, an HB/LB light source module.

In an exemplary embodiment of the present disclosure, for example, the light guide 3 has a centrally disposed through hole 35 formed therein to place a heat sink and implement the main light source 4 and its PCB substrate.

In an exemplary embodiment of the present disclosure, for example, the lighting and/or signaling device further includes a light distribution structure located at or near the focal point of the reflector 2 and configured to adjust the light from the primary light source 4 such that the light emitted by the primary light source 4 forms substantially parallel outgoing HB/LB light after being reflected by the reflection surface 21 of the reflector 2.

In the case of the side-in type second light source 1 arrangement as shown in fig. 2 (a) as described above, the PCB of the HB/LB light source module serving as the main light source 4 is, for example, provided on the flat base of the heat sink 41 at or near the central through hole 35 of the light guide 3 (the other side surface of the heat sink opposite to the one side surface of the flat base on which the HB/LB light source module and the PCB thereof are mounted, for example, the back surface thereof is provided with a plurality of heat radiation fins), and the PCB of the aforementioned second light source 1 serving as the auxiliary light source 1 emitting the signal indicating light or the decoration light is, for example, provided on the lateral surface 32 at the side of the light guide 3. Thereby, the PCB of the primary light source 4 and the PCB of the secondary light source 1 are arranged independently of each other.

In the case where the direct type second light source 1 opposed to the inclined side edge of the light guide 6 as shown in fig. 2 (b) is arranged substantially equivalent to fig. 2 (a) as described above, which substantially becomes the equivalent side-in type second light source 1 with total reflection incidence at the side edge of the light guide 6, the PCB of the HB/LB light source module serving as the main light source 4 is provided on the base of the heat sink 41 at or near the central through hole 35 of the light guide 3, for example, and the PCB of the aforementioned second light source 1 serving as the auxiliary light source 1 emitting the signal indicating light or the decoration light is provided on the base of the heat sink 41, for example (more specifically, at an edge of the base of the heat sink 41), as well. Thereby, the PCB of the primary light source 4 and the PCB of the secondary light source 1 may be common to each other. Of course, the PCBs of the two can be alternatively configured to be independent of each other.

In the case of the direct type second light source 1 arrangement positioned on the rear side as shown in fig. 2 (a) as described above, the PCB of the main light source 4 and the PCB of the second light source 1 are provided separately, for example, and thus are provided independently of each other.

Such a lighting and/or signalling device, thanks to the inclusion of the aforementioned optical assembly 100, therefore has all the advantages and technical effects of the aforementioned optical assembly 100, in particular of the light-reducing optical microstructures located on the rear face 33 of its light guide, and will not be described in detail here.

According to still another aspect of the embodiments of the present disclosure, there is also provided a motor vehicle including: according to the aforementioned lighting and/or signalling device. The motor vehicle for example further comprises a vehicle body to which the lighting and/or signalling device is mounted. Since the motor vehicle comprises the aforesaid lighting and/or signaling device, in particular the aforesaid optical assembly 100, having all the advantages and technical effects of the aforesaid optical assembly 100, in particular of the dimming optical microstructure located on the rear face 33 of its light guide, it will not be described in detail herein.

While the present disclosure has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to be illustrative of the preferred embodiments of the disclosure, and should not be construed as limiting the disclosure.

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 (13)

1. An optical assembly (100), characterized in that the optical assembly (100) comprises:

a first light source (4) and a second light source (1) each configured to emit light;

a reflector (2) having a reflective surface (21) configured to reflect light from the first light source (4) and the second light source (1); and

a light guide (3) configured to guide light from a second light source (1) to the reflector (2), and having a light incident surface (30) configured to receive light from the second light source (1) and a light exit surface (31) that emits light from the second light source (1) toward the reflector (2),

the first light source (4) and the light guide (3) are arranged such that light from the first light source (4) is incident on the reflective surface (21) through a through hole (35) formed in the light guide (3) and is then reflected into a first light beam,

the second light source (1) and the light guide (3) are arranged such that light from the second light source (1) propagates through the light guide (3) to be incident on the reflective surface (21) and is then reflected into a second light beam different from the first light beam.

2. Optical assembly according to claim 1, characterized in that the light entrance face (30) of the light guide (3) is at least a part of a surface of the light guide (3) different from the light exit face (31), light from the second light source (1) being incident into the light guide (3) at the light entrance face (30) and propagating via the light guide (3) to the light exit face (31).

3. Optical assembly according to claim 2, characterized in that the light entrance face (30) of the light guide (3) is a lateral surface (32) of the light guide (3).

4. Optical assembly according to claim 2, wherein the light entrance face (30) of the light guide (3) is a back face (33) of the light guide (3) opposite the light exit face (31).

5. Optical assembly according to claim 3 or 4, characterized in that the first light source (4) and the second light source (1) are located on the same or different planes.

6. Optical assembly according to claim 3, characterized in that a light guide is arranged between the second light source (1) and the light guide (3) to guide the light from the second light source (1) to be incident on the light guide (3).

7. Optical assembly according to claim 6, characterized in that the light guide is integrally formed with the light guide (3).

8. The optical assembly according to claim 4, characterized in that the light guide (3) further comprises a light-modifying structure (34) provided on the rear face (33).

9. Optical assembly according to claim 1, characterized in that the light guide (3) is made of a transparent material.

10. Optical assembly according to claim 9, characterized in that the light entrance face (30) of the light guide (3) is coated with a fluorescent material.

11. The optical assembly according to claim 4, characterized in that the light guide (3) further comprises a layer of transflective material provided at the rear face (33).

12. An illumination and/or signal indication device, characterized in that it comprises:

the optical assembly (100) according to any one of claims 1-11.

13. A motor vehicle, characterized in that it comprises:

a lighting and/or signalling device according to claim 12.

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