Optical conductor, vehicle lamp module and vehicle

Abstract

The invention relates to an optical conductor, which comprises a first light incident surface, a reflecting surface corresponding to the first light incident surface and a light emergent surface, and is characterized in that the reflecting surface extends along a set direction, so that at least one section of the optical conductor is shrunk from one end close to the first light incident surface to the other opposite end to form a cone shape; the reflecting surface comprises a plurality of reflecting step surfaces which are respectively inclined towards the light emitting surface at a set inclination angle, and the set inclination angle is set as follows: in the use state of the optical conductor, the first light incident surface receives a first incident light beam, at least part of the first incident light beam can be reflected by the plurality of reflecting step surfaces, and the first incident light beam is reflected by the reflecting step surfaces. An emergent light beam is formed by emergent light from the emergent surface, and the emergent area of the emergent light beam on the emergent surface is larger than the incident area of the first incident light beam on the first incident surface. In addition, the invention further provides a vehicle lamp module and a vehicle. According to the optical conductor, the light emitting area can reach a large area required by laws and regulations by using a small number of light sources.

Description

Technical Field

[0001] The present invention relates to a vehicle lamp, in particular to a light conductor. In addition, the present invention also relates to a vehicle lamp module and a vehicle. Background Art

[0002] As a common optical component, photoconductors are widely used in automotive lighting optical systems. Photoconductors have a narrow and long light-emitting surface, avant-garde shape, and flexible structural layout. Photoconductors in the prior art are generally used for signal light functions, such as turn signals, position lights, daytime running lights, etc. By arranging a light source and necessary light collimation structures or optical devices at the side or rear of the photoconductor, the light propagates inside the photoconductor and then exits through the light-emitting surface, forming a certain lighting range and light energy distribution, thus realizing the signal light function.

[0003] However, in order to meet the luminous area of ​​signal lights stipulated by laws and regulations, conventional technologies require the arrangement of a large number of light sources, resulting in a bloated structure and large size of headlights, which has become a technical problem in this field. In addition, the existing technology is usually only adapted to one light input method, such as only side light input or rear light input, and the optical conductor cannot be mixed with multiple lighting systems. One optical conductor cannot guide the output light of multiple lighting systems at the same time. These two points lead to a low utilization rate of the optical conductor, resulting in a waste of space inside the headlight, which is not conducive to the vehicle installation and headlight design of the headlight.

[0004] In view of this, it is necessary to design a light conductor that can overcome the above technical difficulties and effectively solve or alleviate the above technical defects. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a light conductor, which can reduce the number of required light sources while ensuring that the light emitting area meets the regulatory requirements.

[0006] Furthermore, the technical problem to be solved is to provide a vehicle lamp module, which has a light emitting area that meets regulatory requirements while requiring fewer light sources.

[0007] In order to solve the above technical problems, the present invention provides a light conductor, including a first light incident surface, a reflective surface corresponding to the first light incident surface, and a light emitting surface, the reflective surface extending along a set direction so that at least a section of the light conductor is reduced from one end close to the first light incident surface toward the other opposite end to form a cone, the reflective surface includes a plurality of reflective step surfaces each inclined toward the light emitting surface at a set inclination angle, the set inclination angle is configured so that when the light conductor is in use, the first light incident surface receives a first incident light beam, at least part of the first incident light beam can be reflected by the plurality of reflective step surfaces and then emitted from the light emitting surface to form an exit light beam, and the exit area of ​​the exit light beam on the light emitting surface is larger than the entrance area of ​​the first incident light beam on the first light incident surface.

[0008] Preferably, the light emitting surface is a step surface.

[0009] Preferably, the light emitting surface is a plane or a smooth curved surface.

[0010] Preferably, the reflective step surface is a total reflective step surface.

[0011] Preferably, it further comprises a second light incident surface. When the optical conductor is in use, the second light incident surface receives a second incident light beam. After the second incident light beam is refracted by the second light incident surface and the light emitting surface, it is emitted from the light emitting surface.

[0012] Further preferably, the second light incident surface includes a plurality of light incident step surfaces, and the light incident step surfaces and the reflection step surfaces are correspondingly connected to each other, so that the plurality of light incident step surfaces and the plurality of reflection step surfaces cooperate to form a stepped structure.

[0013] More preferably, the angle between the light incident step surface and the reflection step surface is set to a set angle so that when the optical conductor is in use, the light beam incident from the first light incident surface can enter the reflection surface without being blocked by the second light incident surface.

[0014] Specifically, the second light incident surface, the first light incident surface, and the reflective surface coordinated with the first light incident surface are arranged in plurality.

[0015] Preferably, a local hollow area is provided inside the optical conductor.

[0016] Specifically, the local hollowed-out area is provided with a parabolic total reflection step surface matched with the first light incident surface and / or a convex lens curved surface matched with the second light incident surface.

[0017] Specifically, the reflection step surface is a parabolic total reflection step surface and / or the light incident step surface is a convex lens curved surface.

[0018] Based on the technical solution of the above optical conductor, the present invention provides a vehicle lamp module, which includes the optical conductor described in any one of the above items and at least one primary optical system, wherein the primary optical system is used to emit a light beam to a light incident portion corresponding to the optical conductor.

[0019] Preferably, the at least one primary optical system is at least one of a high beam lighting system, a low beam lighting system and a signal light system.

[0020] Based on the above-mentioned vehicle light module, the present invention provides a vehicle, which includes any one of the above-mentioned vehicle light modules.

[0021] Through the above technical scheme, the optical conductor of the present invention ingeniously allows the reflective surface to extend along a set direction, so that at least a section of the optical conductor of the present invention is reduced from one end close to the first light incident surface toward the other opposite end to form a cone, and the reflective surface includes a plurality of reflective step surfaces each inclined toward the light emitting surface at a set inclination angle. Since a plurality of spaced reflective step surfaces are arranged on the hypotenuse of the cone, and the reflective step surfaces of the present application are arranged to be inclined toward the light emitting surface at a preset inclination angle, the first incident light beam is reflected by the plurality of reflective step surfaces and emitted from the emitting surface. The formed emitting light beam has a larger irradiation range than the emitting light beam formed by the prior art, and the light emitting area meets regulatory requirements.

[0022] In a further preferred embodiment, the optical waveguide of the present invention is provided with a second light incident surface, and the first light incident surface and the second light incident surface can provide guidance for side light and rear light respectively, making full use of the optical waveguide space, and the first light incident surface and the second light incident surface can both be provided with one or more primary optical systems. The optical waveguide of the present application can provide guidance for light beams generated by multiple primary optical systems at the same time, thereby realizing the integration of multiple optical systems.

[0023] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a light conductor according to a specific embodiment of the present invention.

[0025] Figure 2 This is a light path diagram formed when parallel light is incident on the light guide body according to a specific embodiment of the present invention.

[0026] Figure 3 It is a structural schematic diagram of a vehicle light module according to a specific embodiment of the present invention.

[0027] Figure 4 It is a light path diagram formed when parallel light is incident on the first light incident surface of the vehicle lamp module according to a specific embodiment of the present invention.

[0028] Figure 5 It is a light path diagram formed when parallel light is incident on the second light incident surface of the vehicle lamp module according to a specific embodiment of the present invention.

[0029] Figure 6 It is a light path diagram formed by parallel light incident on the first light incident surface and the second light incident surface of the vehicle lamp module according to a specific embodiment of the present invention.

[0030] Figure 7 The present invention is another specific embodiment of a light path diagram formed when parallel light is incident on the first light incident surface and the second light incident surface of the vehicle lamp module.

[0031] Figure 8 It is a light pattern diagram of an illumination spot formed by a single light source combined with a condenser of a vehicle lamp module according to a specific embodiment of the present invention.

[0032] Fig. 9 A structural diagram of a vehicle lamp module according to a specific embodiment of the present invention in which the second light incident surface guides the low beam illumination light beam and the cut-off line structure is arranged at the upper side.

[0033] Fig.10 yes Fig. 9 Longitudinal section light path diagram at the second light incident surface.

[0034] Fig.11 yes Fig. 9 The light pattern diagram of the low beam lighting light type formed.

[0035] Fig.12 A structural diagram of a vehicle lamp module according to a specific embodiment of the present invention in which the second light incident surface guides the low beam illumination light beam and the cut-off line structure is arranged at the bottom.

[0036] Fig.13 yes Fig.12 Longitudinal section light path diagram at the second light incident surface.

[0037] Fig.14 yes Fig.12 The light pattern diagram of the low beam lighting light type formed.

[0038] Fig.15 This is a light path diagram formed when a divergent light beam is incident on a vehicle light module according to another specific embodiment of the present invention.

[0039] Fig.16 yes Fig.15 Top view of the .

[0040] Fig.17 The light path diagram is formed when a divergent light beam is incident on a vehicle light module according to a specific embodiment of the present invention.

[0041] Description of Reference Numerals

[0042] 1First light incident surface 2Reflection surface

[0043] 3 light emitting surface 4 reflective step surface

[0044] 5 Second light incident surface 6 Light incident step surface

[0045] 7 First incident beam 8 Second incident beam

[0046] 9 Outgoing light beam 10 Light conductor

[0047] 11 light source 12 parabolic reflecting surface

[0048] 13 Collimating surface 14 Parabolic total reflection step surface

[0049] 15 Convex lens surface DETAILED DESCRIPTION

[0050] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0051] In the present invention, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the up, down, left, and right of the optical conductor in normal use. "Inside and outside" refer to the inside and outside of the contours of related components. Terms such as "first" and "second" are used to distinguish one element from another and have no order or importance, and do not constitute limitations on the scope of protection of the present invention. The "light incident area" involved in this application is specifically divided into two cases. First, when the light incident surface is a plane, the "light incident area" refers to the area of ​​the portion of the light incident surface that is illuminated by the light beam. Second, when the light incident surface is a curved surface, the "light incident area" refers to the projection area of ​​the illuminated area of ​​the incident light beam on the curved surface on a plane perpendicular to the normal of the light incident surface. The "light emitting area" involved in this application is specifically divided into two situations. First, when the light emitting surface is a plane, the "light emitting area" refers to the area of ​​the light emitting surface that is illuminated by the outgoing light beam. Second, when the light emitting surface is a curved surface, the "light emitting area" refers to the projection area of ​​the illuminated area of ​​the outgoing light beam on the curved surface on the plane perpendicular to the normal of the light emitting surface. In addition, the "parallel" involved in this application is not parallel in an absolute sense.

[0052] like Figure 1As shown, the present application provides a light conductor including a first light incident surface 1, a reflective surface 2 corresponding to the first light incident surface 1, and a light emitting surface 3, the reflective surface 2 extends along a set direction so that at least a section of the light conductor is reduced from one end close to the first light incident surface 1 toward the other opposite end to form a cone, the reflective surface 2 includes a plurality of reflective step surfaces 4 each inclined toward the light emitting surface 3 at a set inclination angle, the set inclination angle is set so that when the light conductor is in use, the first light incident surface 1 receives a first incident light beam 7, at least a portion of the first incident light beam 7 can be reflected by the plurality of reflective step surfaces 4 and then emitted from the light emitting surface 3 to form an exit light beam 9, and a light exit area of ​​the exit light beam 9 on the light emitting surface 3 is larger than a light incident area of ​​the first incident light beam 7 on the first light incident surface 1.

[0053] In the above basic embodiment, the cone shape may include a cone shape and a frustum shape, for example, see Figure 1 As shown, the preferred cone-shaped or truncated cone-shaped optical conductor can be set as a straight surface on one side and an inclined surface on the other side. When the optical conductor is set as a cone, the reflective step surfaces 4 can be arranged along the inclined surface of the cone at intervals. The first incident light beam 7 is incident from the first light incident surface 1, and passes through a plurality of reflective step surfaces 4 arranged at intervals along a set direction to form a reflected light beam wider than the first incident light beam 7. These reflected light beams are emitted from the light exiting surface 3 to form an exiting light beam 9. These reflective step surfaces 4 arranged at intervals and extending enable the exiting light beam 9 to have a larger irradiation range. When the optical conductor is set as a truncated cone, as shown in FIG. Figure 2 As shown, the reflective step surface 4 can be arranged on the side of the frustum, and the first incident light beam 7 is incident from the first light incident surface 1, and passes through a plurality of reflective step surfaces 4 arranged at intervals along a set direction to form a reflected light beam wider than the first incident light beam 7, and these reflected light beams are emitted from the light exiting surface 3 to form an exiting light beam 9. These reflective step surfaces 4 arranged at intervals and extending enable the exiting light beam 9 to have a larger irradiation range, and as shown in FIG. Figure 2 As shown, by setting the inclination angle of the reflective step surface 4 toward the light-emitting surface 3 to a set inclination angle, the light-emitting area of ​​the outgoing light beam 9 on the light-emitting surface 3 is larger than the light-entering area of ​​the first incident light beam 7 on the first light-entering surface 1, and the light beam emitted by a light source can correspond to multiple reflective step surfaces 4, so that the optical conductor of the present application can use fewer light sources and meet the larger light-emitting area requirements of signal lights stipulated by regulations.

[0054] As a preferred embodiment, Figure 7 As shown, the light emitting surface 3 can be a stepped surface, thereby reducing the weight of the optical conductor, and because a light distribution mirror needs to be provided at the light emitting surface 3 of the optical conductor when the entire vehicle is installed, setting the light emitting surface 3 as a stepped surface can increase the inclination of the light emitting surface and reduce the assembly interference caused by the optical conductor.

[0055] As a preferred implementation, the light emitting surface 3 may be a plane or a smooth curved surface, so as to avoid the light emitting surface 3 having a significant impact on the light pattern.

[0056] As a preferred implementation, the reflective step surface 4 may be a total reflective step surface, so that the light beams passing through the reflective step surface 4 can be completely reflected, thereby improving the light efficiency.

[0057] As a preferred embodiment, Figure 1 As shown, the optical conductor further includes a second light incident surface 5. When the optical conductor is in use, the second light incident surface 5 receives a second incident light beam 8. The second incident light beam 8 is refracted by the second light incident surface 5 and the light emitting surface 3 and then emitted from the light emitting surface 3. Figure 5 As shown, compared with the conventional optical conductor that only injects illumination light beams from the side or rear, the optical conductor of the present application can adapt to both side and rear light input modes, and a variety of primary optical systems can be arranged on the first light input surface 1 and the second light input surface 5 so that the light output surface 3 of the optical conductor can emit a variety of light beams, providing a variety of illumination light types through an independent optical system, thereby increasing the utilization rate of the optical conductor.

[0058] As a specific implementation manner, as shown in the figure, the second light incident surface 5 includes a plurality of light incident step surfaces 6, and the light incident step surfaces 6 and the reflective step surfaces 4 are correspondingly connected to form a stepped structure. By setting a plurality of light incident step surfaces 6, the gaps between the respective reflective step surfaces 4 are fully utilized, and the space utilization rate of the optical conductor is increased on the basis of adapting to a variety of light incident methods.

[0059] As a preferred embodiment, Figure 6 As shown, the angle between the light incident step surface 6 and the reflection step surface 4 is set to a set angle so that when the optical conductor is in use, the light beam incident from the first light incident surface 1 can enter the reflection surface 2 without being blocked by the second light incident surface 5, thereby reducing the influence of the light incident step surface 6 on the first incident light beam 7.

[0060] As a specific implementation method, Fig.17As shown, the optical conductor of this embodiment includes two integrated and mutually symmetrical first light incident surfaces 1 and two second light incident surfaces 5 and a light exiting surface 3, the two reflecting surfaces 2 extend along respective set directions to form two mutually symmetrical cones, the two first reflecting surfaces 2 include a plurality of reflecting step surfaces 4 each inclined at a set inclination angle toward the light exiting surface 3, so that the light exiting area of ​​the outgoing light beam 9 formed correspondingly from the two first light incident surfaces 1 on the exiting surface 3 is larger, and a variety of primary optical systems can be arranged at the first light incident surface 1 and the second light incident surface 5 to realize a single optical conductor emitting a variety of light types. Under the technical inspiration of the present invention, it can be conceived by a general technician in this field that a plurality of first light incident surfaces 1, second light incident surfaces 5 and light exiting surfaces 3 can be arranged without interfering with each other, so that the optical conductor can receive light beams incident from more directions, and the optical system formed by the optical conductor can realize more light types.

[0061] As a preferred embodiment, Fig.15 As shown, a local hollow area is provided inside the optical conductor to reduce the weight of the optical conductor.

[0062] As a further preferred embodiment, Fig.15 and Fig.16 As shown, the local hollowed-out area can be provided with a parabolic total reflection step surface 14 cooperating with the first light incident surface 1 and / or a convex lens surface 15 cooperating with the second light incident surface 5, so that the divergent light beam of the light source 11 can be collimated in the optical conductor. The corresponding primary optical system does not need to be provided with a collimating component, and the light source 11 is arranged at or near the focus of the parabolic total reflection step surface 14 or the convex lens surface 15. The collimation is completed directly through the parabolic total reflection step surface 14 or the convex lens surface 15 of the optical conductor of the preferred embodiment to finally form an outgoing light beam 9, which further simplifies the optical system and reduces the volume of the optical system.

[0063] As a preferred embodiment, the reflective step surface 4 can be a parabolic total reflection step surface 14 and / or the light incident step surface 6 can be a convex lens curved surface 15, and the divergent light emitted by the light source 11 arranged at or near the first light incident surface 1 and the second light incident surface 5 can be collimated by its corresponding parabolic total reflection step surface 14 or convex lens curved surface 15, so that the primary optical system arranged on the light incident surface of the optical conductor does not need to be provided with a collimating structure to collimate the light beam of the light source, thereby reducing the volume of the optical system. It should be noted that the vicinity of the focus of the parabolic total reflection step surface 14 or the convex lens curved surface 15 refers to the range of 2 mm around the focus.

[0064] Based on the optical conductor of the above technical solution of the present invention, the present invention further provides a vehicle lamp module, which comprises the optical conductor of any one of the above items and at least one primary optical system, the primary optical system is used to emit a light beam to the light incident portion corresponding to the optical conductor. Figure 3 As shown, a light source 11 and a condenser may be provided on the first light incident surface 1 and the second light incident surface 5 of the optical conductor of the present invention, as shown in FIG. Figure 4 As shown, the concentrator is configured to be able to collimate the outgoing light beam of the light source 11, and the light source 11 and the concentrator are configured in cooperation so that the collimated parallel light beam can be incident on the multiple reflective step surfaces 4 of the optical conductor, so that the concentrator arranged at the first light incident surface 1 collimates the light beam emitted by the corresponding light source 11 to form a parallel light beam, and after the parallel light beam is incident on the optical conductor, it is reflected by the multiple reflective step surfaces 4 spaced apart from each other along the set direction to form a reflected light beam wider than the incident light beam, and these reflected light beams are emitted from the exit surface 3 to form an outgoing light beam 9 with a larger irradiation range, so that the optical conductor of the present application can achieve a larger light-emitting area with a single light source, and the illumination light type generated by the single light source combined with the concentrator incident from the first light incident surface 1 of the optical conductor of this embodiment is as shown Figure 8 As shown, the lighting light type a can be used for signal lights and high beam lights. A person skilled in the art can imagine that a plurality of light sources 11 can be arranged at the light incident surface. The light beams emitted by the plurality of light sources 11 are emitted from the emission surface 3 to form a plurality of emission light beams 9. The plurality of emission light beams 9 can be combined with each other to form a predetermined light type. At the same time, since the plurality of reflective step surfaces 4 are arranged to be inclined at a set angle toward the light exit surface 3, the light exit area of ​​the emission light beam 9 emitted from the light exit surface 3 is larger than the light entrance area of ​​the first incident light beam 7 emitted from the first light entrance surface 1, and thus the optical conductor can use fewer light sources so that the light exit area meets regulatory requirements. In addition, the optical conductor of the present application can also be provided with a primary optical system on the second light incident surface 5, such as Fig. 9 and Fig.10 As shown, in this embodiment, a light source 11, a parabolic reflecting surface 12, and a light-dark cutoff line structure are arranged at the second light incident surface 5, and the corresponding light incident step surface 6 is arranged as a collimating surface 13, and the focus of the collimating surface 13 is arranged near the boundary of the parabolic reflecting surface 12, and the boundary has a light-dark cutoff line structure corresponding to the shape of the light-dark cutoff line, and the focus of the parabolic reflecting surface 12 is arranged at or near the light source 11. The light beam emitted by the light source 11 is reflected by the parabolic reflecting surface 12 and intercepted by the light-dark cutoff line structure, and then enters from the collimating surface 13, and is collimated by the collimating surface 13 and then emitted from the light emitting surface 3 to form a low beam light type or a part of the low beam light type. The output light beam 9 formed in this embodiment is projected as shown in the figure. Fig.11 As a specific implementation, Fig.12 and Fig.13As shown, the second light incident surface 5 is provided with a light source 11, a parabolic reflecting surface 12, and the corresponding light incident step surface 6 is set as a collimating surface 13. The focus of the collimating surface 13 is set on the parabolic reflecting surface 12 close to the light source 11. The divergent light beam emitted by the light source 11 forms a primary light pattern with a central bright spot on the parabolic reflecting surface 12. The primary light pattern is imaged by the collimating surface 13 and emitted from the light emitting surface 3 to form an outgoing light beam 9 that is projected onto the road surface. The outgoing light beam 9 can be projected to form a signal light pattern or a high beam light pattern, such as Fig.14 The light type c formed by the vehicle lamp module of this embodiment is shown, and the light type c can be used as a high beam light type or a signal light light type. For the vehicle lamp module of the present application, the primary optical system can be used to collimate the divergent light emitted by the light source 11, and the reflection step surface 4 can be set as a parabolic total reflection step surface 14, and the light incident step surface can be set as a convex lens curved surface 15, or the parabolic total reflection step surface 14 and the convex lens curved surface 15 can be directly set in the local hollowed-out area of ​​the light conductor, and the collimation is completed by setting the parabolic total reflection step surface 14 and the convex lens curved surface 15.

[0065] As a preferred embodiment, at least one primary optical system includes a high beam lighting system, a low beam lighting system and a signal light system, and the high beam lighting system, the low beam lighting system and the signal light system are arranged on the light incident surface of the optical conductor, so as to guide a variety of light beams through one optical conductor, thereby realizing the integration of low beam, high beam and signal light. In addition, the first light incident surface 1 of the headlight module of the present application and its corresponding primary optical system can independently emit light beams with the second light incident surface 5 and its corresponding primary optical system to form a light type, or can simultaneously emit light beams to form different light types or the light beams finally formed by the two simultaneously emitted light beams can cooperate to form a light type. In addition, each light incident surface of the optical conductor of the present application can be provided with one or more primary optical systems.

[0066] On the basis of the headlight module of the above technical solution of the present invention, the present invention further provides a vehicle, the headlight of the vehicle includes the headlight module of the present application, so that fewer light sources can be used so that the luminous area of ​​the outgoing light beam meets the requirements stipulated by regulations.

[0067] The present invention provides a preferred embodiment of a vehicle lamp module, such as Figure 7As shown, the vehicle light module includes a light conductor and a primary optical system. The light conductor includes a first light incident surface 1, a second light incident surface 5, a reflective surface 2 corresponding to the first light incident surface 1, and a light emitting surface 3. The reflective surface 2 extends along a set direction so that at least one section of the light conductor is a cone-shaped cone that narrows from one end close to the first light incident surface 1 toward the other opposite end. The reflective surface 2 includes a plurality of reflective step surfaces 4 that are each inclined toward the light emitting surface 3 at a set inclination angle. The reflective step surfaces 4 are arranged on the side of the cone. The second light incident surface 5 includes a plurality of light incident step surfaces 6 so that the plurality of light incident step surfaces 6 and the plurality of reflective step surfaces 4 cooperate to form a stepped structure. The reflective surface 2 is a total reflection surface, and the light emitting surface 3 is a smooth step surface so that when the light conductor is in use, the first light incident surface 1 receives the first incident light beam 7, at least part of which is reflected. The first incident light beam 7 can be reflected by a plurality of reflective step surfaces 4 and then emitted from the light emitting surface 3 to form an outgoing light beam 9, wherein the plurality of reflective step surfaces 4 are arranged to be inclined toward the light emitting surface 3 at a set inclination angle, that is, the reflective step surfaces are arranged such that the projection on a plane perpendicular to the outgoing light beam 9 is larger than the projection on a plane perpendicular to the incident light beam 7, so that the light emitting area of ​​the outgoing light beam 9 emitted from the light emitting surface 3 is larger than the light incident area of ​​the first incident light beam 7 from the first light incident surface 1, and the angle between the light incident step surface 6 and the reflective step surface 5 is arranged to be a set angle, so that when the light conductor is in use, the first incident light beam 7 incident from the first light incident surface 1 can be incident on the reflective surface 2 without being blocked by the second light incident surface 5. The primary optical system includes a light source 11 and a condenser. The light conductor is adapted to a variety of light incident modes by setting the first light incident surface 1 and the second light incident surface 5. In this embodiment, the first light incident surface 1 corresponds to the side light incident mode, and the second light incident surface 5 corresponds to the rear light incident mode, so as to facilitate the spatial layout of the internal structure of the lamp. The first light incident surface 1 of the optical conductor is provided with a plurality of primary optical systems for forming a signal light pattern, and each of the primary optical systems at the first light incident surface 1 corresponds to a plurality of reflective step surfaces 4, so that the divergent light emitted by the light source 11 of the primary optical system is converged by a condenser to form a parallel first incident light beam 7 and enters the first light incident surface 1 of the light guide. One light source 11 corresponds to a plurality of reflective step surfaces 4 arranged at intervals, so that a reflected light beam is formed by reflection through a plurality of reflective step surfaces 4 arranged at intervals, so that the outgoing light beam 9 has a larger irradiation range, and the plurality of reflective step surfaces 4 are arranged so that the projection area on the plane perpendicular to the outgoing light beam 9 is larger than the light incident area of ​​the first incident light beam 7 entering from the first light incident surface 1, so that the light exit area of ​​the outgoing light beam 9 emitted from the light exit surface 3 is larger than the light incident area of ​​the first incident light beam 7 entering from the first light incident surface 1, so that the vehicle light module of the present application can use fewer light sources so that the luminous area of ​​the signal light pattern formed by the outgoing light beam 9 corresponding to the first light incident surface meets the regulatory requirements.The light incident step surface 6 of the headlight module is configured to form a primary optical system of a high beam light pattern, and each primary optical system corresponds to a light incident step surface 6. The divergent light emitted by the light source 11 is converged by a concentrator to form a parallel light beam, and the parallel light beam passes through the light incident step surface 6 and the light exit surface to form an outgoing light beam 9. The outgoing light beam 9 can form a high beam lighting light pattern on the road surface, so that the headlight module can realize an independent optical system to realize the functions of a signal light and a high beam light, and the angle between the light incident step surface 6 and the reflecting step surface 5 is set to a set angle, so that the first incident light beam 7 will not be blocked by the light incident step surface 6, thereby increasing the light effect of the headlight module. In addition, the reflective surface 2 is set as a total reflective surface, so that the first incident light beam 7 can be completely reflected by the reflective surface 2 to the light emitting surface 3, thereby improving the lighting efficiency of the car lamp module. The light emitting surface 3 is set as a smooth step surface, thereby reducing the influence of the light beam on the light when it is transmitted out of the light emitting surface 3. Setting the light emitting surface 3 as a step surface can reduce the weight of the car lamp, and the step surface can increase the inclination of the light emitting surface 3, thereby reducing the assembly interference caused when the car lamp is assembled.

[0068] From the above description, it can be seen that the advantages of the present invention are summarized as follows: first, the optical conductor can increase the irradiation range, so that fewer light sources can be used so that the luminous area of ​​the outgoing light beam meets the requirements of regulations. Second, it can simultaneously adapt to multiple light input methods such as side light input and rear light input. Third, it can provide guidance for light beams generated by various primary optical systems to form different light types, so that the headlight module can realize the integration of high and low beams and signal lights. Fourth, the light beam emitted by the light source can be directly collimated through the light guide to reduce the size of the headlight module.

[0069] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0070] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0071] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A light conductor, characterized in that: The optical fiber comprises a first light incident surface (1), a reflection surface (2) corresponding to the first light incident surface (1), and a light exiting surface (3), wherein the reflection surface (2) extends along a set direction so that at least one section of the optical conductor is reduced from one end close to the first light incident surface (1) toward the other end opposite thereto to form a cone, and the reflection surface (2) comprises a plurality of reflection step surfaces (4) each inclined toward the light exiting surface (3) at a set inclination angle, wherein the set inclination angle is set such that, in the use state of the optical conductor, the first light incident surface (1) receives a first incident light beam (7), and at least a portion of the first incident light beam (7) can be reflected by the plurality of reflection step surfaces (4) and then emitted from the light exiting surface (3) to form an exiting light beam (9), and the exiting light area of ​​the exiting light beam (9) on the light exiting surface (3) is larger than the entrance light area of ​​the first incident light beam (7) on the first light incident surface (1).

2. The optical fiber according to claim 1, characterized in that The light emitting surface (3) is a stepped surface.

3. The optical conductor according to claim 1, characterized in that The light emitting surface (3) is a flat surface or a smooth curved surface.

4. The optical conductor according to claim 1, characterized in that The reflective step surface (4) is a total reflective step surface.

5. The optical waveguide according to any one of claims 1 to 4, characterized in that It also comprises a second light incident surface (5). When the optical conductor is in use, the second light incident surface (5) receives a second incident light beam (8). The second incident light beam (8) is refracted by the second light incident surface (5) and the light exiting surface (3) and then exits from the light exiting surface (3).

6. The optical waveguide according to claim 5, characterized in that The second light incident surface (5) comprises a plurality of light incident step surfaces (6), and the light incident step surfaces (6) and the reflection step surfaces (4) are correspondingly connected in cooperation, so that the plurality of light incident step surfaces (6) and the plurality of reflection step surfaces (4) cooperate to form a stepped structure.

7. The optical fiber according to claim 6, characterized in that The included angle between the light incident step surface (6) and the reflective step surface (4) is set to a set angle, so that when the optical conductor is in use, the first incident light beam (7) incident from the first light incident surface (1) can be incident on the reflective surface (2) without being blocked by the second light incident surface (5).

8. The optical waveguide according to claim 5, characterized in that The second light incident surface (5), the first light incident surface (1), and the reflecting surface (2) matched with the first light incident surface (1) are arranged in plurality.

9. The optical waveguide according to claim 7, characterized in that A local hollow area is provided inside the optical waveguide.

10. The optical waveguide according to claim 9, characterized in that The local hollowed-out area is provided with a parabolic total reflection step surface matched with the first light incident surface (1) and / or a convex lens curved surface matched with the second light incident surface (5).

11. The optical waveguide according to claim 6, characterized in that The reflection step surface (4) is a parabolic total reflection step surface and / or the light incident step surface (6) is a convex lens curved surface.

12. A vehicle light module, characterized in that: The optical fiber comprises the optical fiber according to any one of claims 1 to 11 and at least one primary optical system, wherein the primary optical system is used for emitting a light beam to a light entrance portion corresponding to the optical fiber.

13. The vehicle lamp module according to claim 12, characterized in that: The at least one primary optical system is at least one of a high beam lighting system, a low beam lighting system and a signal light system.

14. A vehicle, characterized in that: Comprising the vehicle light module according to claim 12 or 13.

Images