CN116105090A

CN116105090A - Light-emitting module, low beam, high beam and low beam integrated lighting device and car lamp

Info

Publication number: CN116105090A
Application number: CN202310099448.2A
Authority: CN
Inventors: 张洁; 董世琨; 陈佳缘; 周浩; 李聪; 祝贺; 桑文慧; 张玉玲
Original assignee: HASCO Vision Technology Co Ltd
Current assignee: HASCO Vision Technology Co Ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-05-12
Also published as: CN118463075A; WO2024164527A1

Abstract

The application provides a light-emitting module and low beam, far and near light integrated lighting device, car light relates to car light technical field, including light source, speculum, optical element and the collimating element that set gradually along the light path. The optical element is provided with a first reflecting surface, the first reflecting surface is positioned on the upper surface or the top surface of the optical element, light rays emitted by the light source are respectively incident into the optical element by the first light rays and the collimating element by the second light rays after being reflected by the reflecting mirror, and the first reflecting surface is used for reflecting the first light rays to the collimating element to be combined with the second light rays to be emitted to form a first light shape. Through setting up the optical element that has first reflecting surface to can improve the utilization ratio by the light source light of speculum reflection, make on the basis of second light increase first light again, thereby make the light form that the light module formed have higher luminance, be favorable to especially promoting illumination intensity based on the module of narrow light outlet size.

Description

Light-emitting module, low beam, high beam and low beam integrated lighting device and car lamp

Technical Field

The application relates to the technical field of car lamps, in particular to a light emitting module, a low beam, a high beam and low beam integrated lighting device and a car lamp.

Background

With the development of society and economy, the automobile industry is also developed, and with the continuous development of automobile lighting technology, more requirements are also put on the functions of the automobile lamp. In the lighting device for realizing the lighting function of the car lamp, a light emitting module is generally arranged so as to realize various light emitting light shapes, thereby obtaining better lighting effect.

In order to meet the diversified demands in practical use, many light emitting modules are designed and developed based on the size of a narrow light emitting opening, but the light emitting module is difficult to meet the demands in terms of light emitting brightness due to the limitation of the size of the light emitting opening.

Disclosure of Invention

An object of the present invention is to provide a light emitting module, a low beam, a high beam and a low beam integrated lighting device, and a lamp, which address the above-mentioned drawbacks of the prior art.

In order to achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

in an aspect of the embodiment of the present application, there is provided a light emitting module, including a light source, a reflector, an optical element and a collimating element, where the light source, the reflector, the optical element and the collimating element are sequentially disposed along a light path, the optical element has a first reflecting surface, the first reflecting surface is located on the upper surface or the top surface of the optical element, light emitted by the light source is reflected by the reflector and then enters the optical element with first light and enters the collimating element with second light respectively, and the first reflecting surface is used for reflecting the first light to the collimating element to combine with the second light to emit to form a first light shape.

Optionally, a second reflecting surface is disposed on a side of the optical element near the reflecting mirror, a part of light emitted by the light source is incident on the second reflecting surface, reflected by the second reflecting surface to the reflecting mirror, reflected by the reflecting mirror, and then incident on the collimating element by a fourth light, and the first light, the second light and the fourth light are combined and emitted to form a second light shape.

Optionally, a second reflecting surface is disposed on a side of the optical element, which is close to the reflecting mirror, the second reflecting surface is a light shielding surface, and the third light rays which are emitted by the light source and can not be utilized are absorbed or reflected by the second reflecting surface to the reflecting mirror, reflected by the reflecting mirror to the collimating element and then emitted.

Optionally, the optical element and the reflecting mirror are integrally formed, the first reflecting surface is a light shielding surface, and the third ray which is emitted by the light source and can not be utilized is absorbed or reflected by the first reflecting surface to the decorative ring of the light emitting module and is shielded.

Optionally, the collimating element may be a lens or an emergent light reflecting mirror, and the light emitted by the light source is projected by the lens and then exits through the reflecting mirror and the optical element or exits through the emergent light reflecting mirror and then exits to form an emergent light shape.

Optionally, the surface of the reflecting mirror is any one of a paraboloid, a paraboloid-like surface, an ellipsoid or an ellipsoid-like surface; the first focus of the ellipsoid or ellipsoid-like surface is provided with a light source, and the second focus is positioned on one side of the optical element close to the collimating element.

In another aspect of the embodiments of the present application, there is provided a low beam lighting device, including at least one light emitting module of any one of the above, the light emitting module includes a light source, a reflector, an optical element and a collimating element, where a first reflecting surface of the optical element is close to a boundary of the collimating element to form a cut-off line structure, and a focus of the collimating element is disposed at the cut-off line structure or near the cut-off line structure.

Optionally, the cut-off line structure includes a plurality of sub-cut-off lines connected in sequence, and at least two adjacent sub-cut-off lines have an included angle.

Optionally, the junction of the two sub-cut-off lines with an included angle is in arc transition.

Optionally, the optical element further includes a third reflective surface disposed adjacent to the collimating element, and a iii-zone structure is disposed on the third reflective surface, so that the light beam after passing through the iii-zone structure is projected by the collimating element to form a low beam iii-zone light shape.

Optionally, the light emitting module is a main low beam module or an auxiliary low beam module.

Optionally, the light emitting module further comprises a radiator for radiating the light source of the light emitting module, and the optical element is connected with the radiator;

or when the optical element is arranged opposite to the light source of the light emitting module, the optical element is connected with one side of the reflecting mirror, which is close to the collimating element.

In still another aspect of the embodiments of the present application, there is provided a high beam lighting device, including at least one light emitting module of any one of the above, where the light emitting module includes a light source, a reflector, an optical element, and a collimating element, and a focal point of the collimating element is disposed at or near a boundary of the reflector near the light source.

In yet another aspect of the embodiments of the present application, a high-beam and low-beam integrated lighting device is provided, including a low-beam light-emitting module and a high-beam light-emitting module, where the low-beam light-emitting module or the high-beam light-emitting module is any one of the light-emitting modules.

Optionally, when the low beam light emitting module is a light emitting module, the optical element of the light emitting module further includes a third reflecting surface disposed close to the collimating element of the light emitting module, and the high beam light emitting module emits high beam light to the third reflecting surface and emits the high beam light to the collimating element to form a high beam shape.

Optionally, the high beam light emitting module includes a high beam light source and a high beam reflector, and a focal point of the high beam reflector coincides with a focal point of the third reflecting surface.

Optionally, when the high beam light emitting module is a light emitting module, the light emitting module includes an optical element and a collimating element, the optical element further includes a third reflecting surface near the collimating element, and the low beam light emitting module emits low beam light to the third reflecting surface and emits to the collimating element to form a low beam light shape through the third reflecting surface.

Optionally, the low beam light emitting module includes a low beam light source and a low beam reflector, and a focal point of the low beam reflector coincides with a focal point of the third reflecting surface.

Optionally, a cut-off line structure is formed at the junction of the third reflecting surface and the first reflecting surface, and the focus of the collimating element is disposed at or near the cut-off line structure.

Optionally, the third reflective surface is a plane or a curved surface.

In still another aspect of the embodiments of the present application, there is provided a vehicle lamp including any one of the above low beam lighting devices, or any one of the above high-low beam integrated lighting devices.

The beneficial effects of this application include:

the application provides a light module and passing light, far-reaching headlamp integrative lighting device, car light, include light source, speculum, optical element and the collimating element that set gradually along the light path, optical element has first reflecting surface, and first reflecting surface is located optical element's top or top surface, and the light that the light source sent is used for reflecting first light to the collimating element with the second light combination outgoing with first light incidence optical element and with second light incidence collimating element respectively after the speculum reflection, first reflecting surface is used for with first light reflection to the collimating element with the second light combination outgoing form first light shape. Through setting up the optical element that has first reflecting surface to can improve the utilization ratio by the light source light of speculum reflection, make on the basis of second light increase first light again, thereby make the light form that the light module formed have higher luminance, be favorable to especially promoting illumination intensity based on the module of narrow light outlet size.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an optical module according to an embodiment of the present disclosure;

FIG. 2 is a second schematic structural diagram of an optical module according to an embodiment of the present disclosure;

FIG. 3 is a third schematic diagram of an embodiment of a light emitting module;

fig. 4 is a schematic light path diagram of an optical output module according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of another light emitting module according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a low beam light pattern formed when the low beam lighting device is not provided with an optical element having a cut-off line structure;

fig. 7 is a schematic diagram of a low beam light pattern formed by combining and emitting a first light ray and a second light ray when an optical element having a cut-off line structure is provided in the low beam lighting device according to the embodiment of the present application;

fig. 8 is a schematic diagram of a light pattern formed by the first light rays emitted separately when the low beam lighting device provided in the embodiment of the present application is provided with an optical element having a cut-off line structure;

fig. 9 is a low beam light shape formed by combining and emitting a first light ray, a second light ray and a fourth light ray when the low beam lighting device provided in the embodiment of the present application is provided with an optical element having a cut-off line structure;

fig. 10 is a light shape formed by the fourth light rays when the low beam lighting device provided in the embodiment of the present application is provided with an optical element having a cut-off line structure;

fig. 11 is a schematic light path diagram of a high beam lighting device according to an embodiment of the present application;

fig. 12 is a high beam shape when the high beam lighting device is not provided with an optical element;

fig. 13 is a schematic view of a high beam shape when the high beam lighting device provided in the embodiment of the present application is provided with an optical element;

fig. 14 is a schematic structural diagram of a far-near light integrated lighting device according to an embodiment of the present application;

fig. 15 is a second schematic structural diagram of a far-near light integrated lighting device according to an embodiment of the present application;

fig. 16 is a third schematic structural view of a far-near light integrated lighting device according to an embodiment of the present disclosure;

fig. 17 is a schematic view of a low beam light path of a high beam and low beam integrated lighting device according to an embodiment of the present application;

fig. 18 is a schematic view of a high beam path of a high beam and low beam integrated lighting device according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of another far-near light integrated lighting device according to an embodiment of the present application;

fig. 20 is a schematic view of a high beam path of another high beam and low beam integrated lighting device according to an embodiment of the present disclosure;

fig. 21 is a low beam shape with a cut-off line formed by the exit of the low beam light emitting module according to the embodiment of the present application;

fig. 22 is a high beam shape formed by emitting a high beam light emitting module according to an embodiment of the present application;

fig. 23 is an illumination light shape formed by the integrated far and near light illumination device according to the embodiment of the present application.

Icon: 110-a light source; 120-mirrors; 130-an optical element; 131—a first reflective surface; 132-a second reflective surface; 133-a third reflective surface; 134-cut-off line structure; 140-collimating elements; 141-the focal point of the collimating element; 150-a heat sink; 160-a circuit board; 171-first light; 172-fourth ray; 173-third light; 180-a high beam light-emitting module; 181-high beam light source; 182-high beam reflector; 210-coincident focal point positions.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. It should be noted that, in the case of no conflict, the features of the embodiments of the present application may be combined with each other, and the combined embodiments still fall within the protection scope of the present application.

In the description of the present application, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance. The terms "perpendicular" and "parallel" do not mean absolute perpendicular or parallel, but may be approximately perpendicular or approximately parallel.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

It should be understood that, for convenience of description and simplification of the description, the terms "front and rear" refer to the front and rear directions of the lighting device in the light-emitting direction, the terms "left and right" refer to the left and right directions of the lighting device itself, and the terms "up and down" refer to the up and down directions of the lighting device itself, which are generally substantially the same as the front, rear, left and right up and down directions of the vehicle; the terms are based on the orientation or positional relationship shown in the drawings and do not indicate or imply that the device or element in question must have a particular orientation, be constructed and operate in a particular orientation and therefore should not be construed as limiting the application; moreover, the azimuthal terminology of the lighting devices of the present application should be understood in connection with the actual installation state.

In the present application, the light-emitting light pattern refers to a projected shape of a light ray of the lamp projected on a light distribution screen at a position 25m from the front of the vehicle, and the cut-off line refers to a cut-off line where the light ray is projected on the light distribution screen and a visually perceived light and shade change significantly.

In an aspect of the embodiments of the present application, an optical module is provided, which includes an optical element disposed in an optical path, and a first reflection surface of the optical element is utilized, so as to improve a utilization rate of light from a light source, and further effectively improve a brightness of the light emitted by the optical module. Embodiments of the present application will be described below with reference to the accompanying drawings.

Referring to fig. 1 to 3, a light emitting module is shown, which includes a light source 110, a reflector 120, an optical element 130 with a first reflecting surface 131 and a collimating element 140 sequentially disposed along a light path, wherein, referring to fig. 4, the light source 110 emits light and enters the reflector 120, the light is reflected to the collimating element 140 and the first reflecting surface 131 of the optical element 130 after primary modulation of the reflector 120, the first reflecting surface 131 is located on the upper surface or the top surface of the optical element 130, and specifically, a part of the reflected light (i.e. the first light 171) of the light source 110 directly enters the first reflecting surface 131 and is reflected to the collimating element 140 by the first reflecting surface 131, so that a part of the light which cannot enter the collimating element 140 is well utilized; the main light path portion (i.e., the second light) of the light beam of the light source 110 reflected by the reflecting mirror 120 directly enters the collimating element 140, so that the first light beam 171 and the second light beam can be combined to form a first light shape, wherein the first light beam 171 separately exits the collimating element 140 to form a part of the first light shape (as shown in fig. 8), and the second light beam separately exits the collimating element 140 to form a part of the first light shape (as shown in fig. 7), and the two light beams are overlapped to obtain the first light shape.

In summary, by providing the optical element 130 with the first reflecting surface 131, the utilization rate of the light source 110 reflected by the reflecting mirror 120 can be improved, so that the first light 171 is increased on the basis of the second light, and the light shape formed by the light emitting module has higher brightness, which is particularly beneficial to improving the illumination brightness based on the module with a narrow light outlet size.

Optionally, as shown in fig. 1 to 3 and 5, a second reflecting surface 132 is further provided on a side of the optical element 130 near the reflecting mirror 120 (for example, in fig. 1 to 3 and 5, an upper surface or a top surface of the optical element 130 is used as the first reflecting surface 131, and a side surface of the optical element 130 near the reflecting mirror 120 is used as the second reflecting surface 132). Specifically, a part of the light rays (i.e., the first light ray 171) of the reflected light source 110 directly enter the first reflecting surface 131 and are reflected by the first reflecting surface 131 to the collimating element 140, so that a part of the light rays which cannot enter the collimating element 140 originally are well utilized; some of the reflected light rays (i.e., the fourth light ray 172) of the light source 110 are directly incident on the second reflecting surface 131, reflected by the second reflecting surface 132 to the reflecting mirror 120, modulated by the reflecting mirror 120 and reflected to the collimating element 140, so that another part of the light rays which cannot be incident on the collimating element 140 are well utilized; the main light path portion (i.e., the second light) of the light beam of the light source 110 reflected by the reflecting mirror 120 directly enters the collimating element 140, so that the first light beam 171 and the fourth light beam 172 and the second light beam can be combined to form a second light shape (as shown in fig. 9), wherein the first light beam 171 separately exits the collimating element 140 and can form a part of the second light shape (as shown in fig. 8), the fourth light beam 172 separately exits the collimating element 140 and can form a part of the second light shape (as shown in fig. 10), and the second light beam separately exits the collimating element 140 and can form a first light shape (as shown in fig. 7), and the three light beams are overlapped to obtain the second light shape (as shown in fig. 9). Therefore, the utilization rate of the light source 110 can be further improved by using the second reflecting surface 132 of the optical element 130, so that the illumination brightness of the light emitting module is further improved.

Alternatively, as shown in fig. 4 and 11, the second reflecting surface 132 may also be used as a light shielding surface. At this time, the light emitted from the light source 110 may further include a third light 173 that may not be used, where the third light 173 may belong to stray light directly emitted from the light source 110 to the collimating element 140, so as to avoid stray light affecting the light emitting quality formed by the third light 173 emitted from the collimating element 140, and the third light 173 may be blocked by a light shielding surface on the optical element 130, so that the third light 173 cannot be directly emitted from the light source 110 to the collimating element 140. Specifically, the light shielding surface may be a light absorbing surface or a light reflecting surface, for example: the light shielding surface is a light absorbing surface, and the third light 173 directly emitted by the light source 110 is absorbed by the light shielding surface on the optical element 130; also for example: the light shielding surface is a reflecting surface, and the third light 173 emitted from the light source 110 is reflected by the reflecting surface and then emitted to the collimating element 140 through the reflector 120.

Alternatively, as shown in fig. 14 to 16, the optical element 130 and the reflecting mirror 120 are integrally formed, and the first reflecting surface 131 may be a light shielding surface. At this time, the light source 110 emits light toward the reflecting mirror 120, and the light of the light source 110 reflected by the reflecting mirror 120 includes a first light 171 incident on the first reflecting surface 131 (for example, fig. 14 or fig. 16, the first reflecting surface 131 may be located on the upper surface or the top surface of the optical element 130) and a second light incident on the collimating element 140, and the first light 171 is reflected by the first reflecting surface 131 and then combined with the second light to be emitted from the collimating element 140 to form a first light shape, as shown in fig. 17. On this basis, the light emitted by the light source 110 may further include a third light 173 that may not be used, where the third light 173 may belong to stray light that is directly emitted from the light source 110 to the collimating element 140, in order to avoid that the third light 173 emits to form stray light via the collimating element 140, and affect the light emitting quality of the light emitting module, as shown in fig. 17, the first reflecting surface 131 may be used to reflect the third light 173, so that the third light 172 is blocked by the bezel of the light emitting module, and cannot be emitted finally through the collimating element 140, or the first reflecting surface 131 may also be configured as a light absorbing surface, so as to absorb the third light 172. Thereby, the purpose of changing the optical path of the third light ray 173 by the first reflecting surface 131 is achieved.

Alternatively, the optical element 130 may be a separate component that is fixed to a surrounding component by assembly, for example, in fig. 1 to 3, the optical element 130 is a plate-like structure; also for example, in fig. 19 and 20, the optical element 130 is an irregular structure; in addition, the optical element 130 may be a unitary structure that is integrated with other peripheral devices. In fig. 5, for example, the optical element 130 is integrated with a heat sink 150 (for dissipating heat from the light source 110 and electronic devices related to the light source 110, for example, a circuit board 160 carrying the light source 110), and the heat sink 150 is generally made of a high heat conductive material, so that heat absorbed by the light shielding surface irradiated by the third light ray 173 can be dissipated through the heat sink 150, and the light shielding surface is prevented from being too high in temperature and out of the tolerance range of the material, and when the boundary of the first reflecting surface 131 near the collimating element 140 is used as the cut-off line structure 134, sunlight can be dissipated through the focusing point of the collimating element 140 at or near the cut-off line structure 134 by using the heat sink 150. Also for example in fig. 14 and 16, the optical element 130 is integrated with the mirror 120. The vicinity of the cutoff structure 134 is within 2mm around the cutoff structure.

Alternatively, the collimating element 140 may be a lens or an emergent light reflector, and the light of the light source 110 is modulated by the reflector 120 and the optical element 130, and then is emitted through the lens or is reflected by the emergent light reflector to form an emergent light shape.

Optionally, in order to make the reflector 120 perform primary modulation on the incident light of the light source 110, the surface of the reflector 120 may be any one of a paraboloid, a paraboloid-like surface, an ellipsoid or an ellipsoid, where the paraboloid-like surface refers to a curved surface similar to a paraboloid, and the ellipsoid-like surface refers to a curved surface similar to an ellipsoid, which has similar optical performance.

The light source 110 is disposed at the focal point of the paraboloid, the paraboloid-like surface, or the first focal point of the ellipsoid and the ellipsoid-like surface, so that the divergent light emitted by the light source 110 is converted into the nearly parallel light, and the nearly parallel light is projected to the collimating element 140, thereby realizing the effect of emitting light from the narrow opening. The second focal points of the ellipsoids and the ellipsoids are located on the side of the optical element 130 near the collimating element 140, preferably at the light receiving surface of the collimating element 140 (such as the light incident surface of the lens or the reflecting surface of the light emitting mirror), so that the light reflected by the ellipsoids or the ellipsoids is converged at the light receiving surface of the collimating element 140, thereby minimizing the light receiving surface area of the collimating element 140.

The light-emitting module that this application provided can be used for lighting device, and light-emitting module can be as any module such as far beam, dipped beam, supplementary far beam, corner lamp, fog lamp among the lighting device, when lighting device includes a plurality of light-emitting module, can realize multiple illumination function such as dipped beam and far beam, dipped beam and ADB far beam, main dipped beam and supplementary dipped beam, according to different illumination function, can divide into dipped beam lighting device, far beam lighting device, integrative lighting device of far beam and near beam etc. with lighting device, this application does not do specific limitation to it.

By applying the light emitting module, the light emitting brightness of the lighting device can be effectively improved, so that the lighting device has higher lighting brightness based on the size of a narrow light emitting opening. For convenience of description, the low beam lighting device, the high beam lighting device, and the high-low beam integrated lighting device will be described below schematically with reference to the accompanying drawings.

In another aspect of the embodiments of the present application, as shown in fig. 1 to 3 or fig. 5, a low beam lighting device is provided, which includes at least one light emitting module, where the light emitting module includes the light source 110, the reflector 120, the optical element 130 and the collimating element 140, so that the low beam lighting device can form an illumination light shape with a cutoff line, the light emitting module can be modulated by the optical element 130, for example, a boundary of the first reflecting surface 131 of the optical element 130 near the collimating element 140 can form the cutoff line structure 134, and a focal point of the collimating element 140 is correspondingly disposed at the cutoff line structure 134 or near the cutoff line structure 134. Thus, as shown in fig. 6, a low beam light shape formed when the optical element 130 having the cutoff structure 134 is not provided for the low beam lighting device, the light shape having no cutoff line therein and thus not meeting the regulatory requirements; as shown in fig. 7, when the optical element 130 with the cut-off line structure 134 is provided for the low beam lighting device, the second light is emitted to form a low beam light shape (i.e. a first light shape), and the low beam light shape has a cut-off line; as shown in fig. 8, when the optical element 130 having the cutoff structure 134 is provided for the low beam lighting device, the first light 171 is emitted alone to form a light shape, and at this time, the light shape also has a cutoff line; as shown in fig. 9, when the optical element 130 having the cut-off line structure 134 is provided for the low beam lighting device, the first light 171, the second light and the fourth light 172 are combined and emitted to form a low beam light shape (i.e. a second light shape), and at this time, the light shape also has a cut-off line; as shown in fig. 10, when the optical element 130 having the cutoff structure 134 is provided for the low beam lighting device, the fourth light ray 172 is emitted singly to form a light pattern, and at this time, the light pattern also has a cutoff line.

Alternatively, the cut-off line structure 134 may include a plurality of sequentially connected sub-cut-off lines, at least two adjacent sub-cut-off lines having an included angle, that is, the cut-off line structure 134 formed on the optical element 130 may have a plurality of inflection points, for example, it is shown in fig. 1 to 3 that the first reflection surface 131 includes a first sub-surface and a second sub-surface having a height difference, and a third sub-surface connected between the first sub-surface and the second sub-surface, whereby the cut-off line structure 134 at a boundary of the three near the reflection mirror 120 has two inflection points.

Optionally, the junction of the two sub-cut-off lines with an included angle is in arc transition, so that the gradient of the cut-off line of the light shape is softer.

Optionally, the optical element 130 further comprises a third reflective surface 133 arranged close to the collimating element 140. The third reflecting surface 133 is connected to the first reflecting surface 131, and the junction between the third reflecting surface and the first reflecting surface is the cut-off line structure 134. The third reflecting surface 133 is provided with a iii-zone structure, so that the light beam is projected by the collimating element 140 after passing through the iii-zone structure to form a near light iii-zone light shape.

Optionally, when the low beam lighting device includes an emitting light module, the emitting light module may be used as a main low beam module or an auxiliary low beam module, and the corresponding emitting light pattern is also a main low beam pattern or an auxiliary low beam pattern. When the low beam lighting device comprises a plurality of light emitting modules, at least one of the light emitting modules can be used as a main low beam module, and the rest light emitting modules can be used as auxiliary low beam modules, so that the light shapes emitted by the main low beam module and the auxiliary low beam module are combined to form a low beam light shape, the main low beam light shape is a central area light shape of the low beam light shape, the illuminance is high, and the auxiliary low beam light shape is a widened area light shape of the low beam light shape, so that the left and right irradiation ranges of the low beam light shape meet the requirements.

In still another aspect of the embodiments of the present application, when the high beam lighting device includes at least one light emitting module, that is, when the light emitting module is used as the high beam light emitting module 180, as shown in fig. 11, the light emitting module includes a light source 110, a reflector 120, an optical element 130 and a collimating element 140, where a focal point 141 of the collimating element is disposed at or near a boundary of the reflector 120 near the light source 110, so that a lower boundary gradient of the high beam light shape can be adjusted by using a first reflecting surface 131 of the optical element 130, so that the lower boundary gradient of the high beam light shape is softer, and is softer when being joined with the low beam light shape, without obvious bright-dark boundary.

As shown in fig. 12, the high beam lighting device is a high beam shape when the optical element 130 is not provided, wherein the lower boundary gradient of the high beam shape is sharp; in contrast, as shown in fig. 13, the far-beam shape when the optical element 130 is provided for the far-beam lighting device, it can be seen that, by adjusting the optical element 130, a portion of energy above the cutoff line can be mirrored below the lower boundary of the virtual far-beam shape, so that the lower boundary gradient of the far-beam shape is softer.

Optionally, the high beam lighting device includes a plurality of light emitting modules connected in sequence. For example, the reflecting surface of the low beam reflector may be a paraboloid, a paraboloid-like surface, an ellipsoid-like surface, or an ellipsoid-like surface, and the collimating element 140 may be a plurality of lenses sequentially connected, where the light incident surface and the light emergent surface of the lens respectively implement unidirectional collimation for light. And combining part of light shapes emitted by the light emitting modules which are connected in sequence to form a final high beam shape.

In still another aspect of the embodiments of the present application, as shown in fig. 14 to 18 or fig. 19 to 20, a high-low beam integrated lighting device is provided, which includes a low beam light emitting module and a high beam light emitting module 180, where the low beam light emitting module is any one of the light emitting modules. Of course, in other embodiments, the low beam light emitting module and the high beam light emitting module 180 may be exchanged, that is, the high beam light emitting module 180 may be used as any of the light emitting modules.

Alternatively, as shown in fig. 14 to 18, when the low beam light emitting module is the light emitting module, the light emitting module includes the light source 110, the reflector 120, the optical element 130 and the collimating element 140, where the light source 110 and the optical element 130 may be disposed opposite to each other, and at this time, the optical element 130 further includes a third reflecting surface 133 disposed near the collimating element 140. As shown in fig. 17, for the low beam path: the first light ray 171 emitted from the light source 110 is reflected by the reflector 120 and reflected again by the first reflecting surface 131 and then enters the collimating element 140, and the second light ray emitted from the light source 110 is directly incident on the collimating element 140 after being reflected by the reflector 120, so that the first light ray 171 and the second light ray can be combined and emitted by the collimating element 140 to form a dipped beam shape; as shown in fig. 18, for the high beam path: the far-beam light-emitting module 180 emits far-beam light toward the third reflecting surface 133 of the optical element 130, and the far-beam light is reflected by the third reflecting surface 133 and then emitted by the collimating element 140 to form a far-beam shape.

Alternatively, as shown in fig. 14 to 18, the high beam light emitting module 180 includes a high beam light source 181 and a high beam reflector 182, that is, the high beam light emitted from the high beam light source 181 is first modulated by the high beam reflector 182 and then emitted as the high beam light emitted from the high beam light emitting module 180. The surface shape of the high beam reflector 182 may be any one of a paraboloid, a paraboloid-like surface, an ellipsoid or an ellipsoid-like surface, the paraboloid-like surface refers to a curved surface similar to a paraboloid, the ellipsoid-like surface refers to a curved surface similar to an ellipsoid, and the high beam reflector has similar optical performance, so long as the high beam reflector 182 can emit light in parallel or approximately parallel. Alternatively, a focal point of the high beam reflector 182 may be coincident with a focal point of the third reflecting surface 133, so as to avoid the high beam light emitting module 180 from blocking the low beam light path. For example, as shown in fig. 19 and 20, the surface of the far-beam reflector 182 is ellipsoidal, and a far-beam light source 181 may be disposed at a near focal point thereof, and the far-beam light source 181 may be coincident with a focal point of the third reflecting surface 133, that is, at this time, the far-beam light source 181 emits far-beam light to the far-beam reflector 182, and after being reflected by the far-beam reflector 182, the far-beam light is incident on the third reflecting surface 133 from the coincident focal point position 210, and then after being reflected by the third reflecting surface 133, the far-beam light is emitted from the collimating element 140 to form a far-beam shape.

Alternatively, the third reflective surface 133 may be planar or curved, and when curved, may be capable of modulating the incident light, such as horizontally and/or vertically collimating. For example, as shown in fig. 1, the third reflecting surface 133 is a plane, and for example, as shown in fig. 19, the third reflecting surface 133 is a paraboloid.

Optionally, as shown in fig. 19 to 20, the low beam light emitting module and the high beam light emitting module 180 are included, and the low beam light emitting module is any one of the light emitting modules described above. The third reflecting surface 133 is a paraboloid, and a cut-off line structure 134 is formed at a junction of the third reflecting surface 133 and the first reflecting surface 131. Further, the reflecting surface of the low beam reflector adopts a paraboloid, a paraboloid-like surface, an ellipsoid or an ellipsoid-like surface, the reflecting surface of the high beam reflector adopts an ellipsoid or an ellipsoid-like surface, a light source is arranged at a first focus of the high beam reflector, and a second focus is overlapped with a focus of the low beam reflector. The focal point of the collimating element is disposed near the inflection point of the cutoff structure 134.

Thus, as shown in fig. 21, a low beam pattern having a cutoff line is formed by emitting the low beam light emitting module, as shown in fig. 22, a high beam pattern is formed by emitting the high beam light emitting module 180, and as shown in fig. 23, an illumination pattern is formed by the high-low beam integrated illumination device (i.e., the low beam pattern and the high beam pattern are joined near the cutoff line).

Optionally, the arc-shaped transition at the junction of the sub-cut-off lines of the cut-off line structure 134, that is, the rounded corner at the junction, can make the gradient of the cut-off line softer, and facilitate the connection of the high beam shape and the low beam shape. In still another aspect of the embodiments of the present application, there is provided a vehicle lamp including any one of the above low beam lighting devices, or any one of the above high-low beam integrated lighting devices. The vehicle lamp in the present application may be applied to vehicles such as bicycles, motorcycles, automobiles, ships, aircrafts, and the like, and is not limited thereto.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. The light emitting module is characterized by comprising a light source, a reflector, an optical element and a collimation element which are sequentially arranged along a light path, wherein the optical element is provided with a first reflection surface, the first reflection surface is positioned on the upper surface or the top surface of the optical element, light rays emitted by the light source are respectively incident into the optical element and the collimation element through first light rays and second light rays after being reflected by the reflector, and the first reflection surface is used for reflecting the first light rays to the collimation element to be combined with the second light rays to emit to form a first light shape.

2. The light emitting module of claim 1, wherein a second reflecting surface is disposed on a side of the optical element near the reflecting mirror, a portion of the light emitted from the light source is incident on the second reflecting surface, reflected by the second reflecting surface toward the reflecting mirror, reflected by the reflecting mirror, and incident on the collimating element as a fourth light, and the first light, the second light and the fourth light are combined to emit to form a second light shape.

3. The light emitting module of claim 1, wherein a second reflecting surface is disposed on a side of the optical element near the reflecting mirror, the second reflecting surface is a light shielding surface, and the third light rays which are emitted by the light source and can not be utilized are absorbed or reflected by the second reflecting surface to the reflecting mirror and are reflected by the reflecting mirror to the collimating element to be emitted.

4. The light emitting module of claim 1, wherein the optical element and the reflecting mirror are integrally formed, the first reflecting surface is a light shielding surface, and the third light which is emitted by the light source and can not be utilized is absorbed by the first reflecting surface or reflected to the decorative ring of the light emitting module and is shielded.

5. The light emitting module of claim 1, wherein the collimating element is a lens or a light emitting reflector, and the light emitted by the light source is modulated by the reflector and the optical element, and then projected by the lens or reflected by the light emitting reflector to form a light emitting shape.

6. The light-emitting module of claim 1, wherein the mirror has a surface that is any one of a parabolic surface, a paraboloid-like surface, an ellipsoidal surface, or an ellipsoid-like surface; the light source is arranged at a first focus of the ellipsoid or the ellipsoid-like surface, and a second focus is positioned at one side of the optical element, which is close to the collimating element.

7. A low beam lighting device as claimed in any one of claims 1 to 6, comprising at least one light-emitting module comprising a light source, a reflector, an optical element and a collimating element, the first reflecting surface of the optical element forming a cut-off line structure near the boundary of the collimating element, the focal point of the collimating element being arranged at or near the cut-off line structure.

8. The low beam lighting device of claim 7, wherein said cut-off line structure comprises a plurality of sub-cut-off lines connected in series, at least two adjacent ones of said sub-cut-off lines having an included angle.

9. The low beam lighting device of claim 8, wherein the junction of two of said sub-cut-off lines having an included angle transitions in an arc.

10. The low beam lighting device of claim 7, wherein the optical element further comprises a third reflective surface disposed adjacent to the collimating element, the third reflective surface having a zone iii structure disposed thereon such that light rays after passing through the zone iii structure are projected by the collimating element to form a low beam zone iii light shape.

11. The low beam lighting device of claim 7, wherein the light emitting module is a main low beam module or an auxiliary low beam module.

12. A high beam lighting device comprising at least one light extraction module as claimed in any one of claims 1 to 6, said light extraction module comprising a light source, a reflector, an optical element and a collimating element, the focal point of said collimating element being arranged at or near the boundary of said reflector adjacent to said light source.

13. A high-low beam integrated lighting device, comprising a low beam light-emitting module and a high beam light-emitting module, wherein the low beam light-emitting module or the high beam light-emitting module is the light-emitting module according to any one of claims 1 to 6.

14. The integrated far and near light illumination device of claim 13, wherein when the low beam light emitting module is the light emitting module, the optical element of the light emitting module further comprises a third reflecting surface disposed near the collimating element of the light emitting module, and the far beam light emitting module emits far beam light to the third reflecting surface, and reflects the far beam light to the collimating element via the third reflecting surface to emit the far beam light.

15. The integrated high and low beam lighting device of claim 14, wherein said high beam light emitting module comprises a high beam light source and a high beam reflector, a focal point of said high beam reflector coinciding with a focal point of said third reflective surface.

16. The integrated high and low beam lighting device of claim 13, wherein when the high beam light emitting module is the light emitting module, the optical element of the light emitting module further comprises a third reflecting surface disposed near the collimating element of the light emitting module, and the low beam light emitting module emits low beam light to the third reflecting surface, and emits the low beam light to the collimating element to form a low beam light shape by being reflected by the third reflecting surface.

17. The high and low beam integrated lighting device of claim 16, wherein the low beam light emitting module comprises a low beam light source and a low beam reflector, a focal point of the low beam reflector coinciding with a focal point of the third reflective surface.

18. A high and low beam integrated lighting device as claimed in any one of claims 14 to 17, wherein the junction of said third reflecting surface and said first reflecting surface forms a cut-off line structure, and the focal point of said collimating element is disposed at or near said cut-off line structure.

19. The integrated high and low beam lighting device of claim 14 or 16, wherein the third reflecting surface is a plane or a curved surface.

20. A vehicle lamp comprising the low beam lighting device according to any one of claims 7 to 11, or the high beam lighting device according to claim 12, or the high-low beam integrated lighting device according to any one of claims 13 to 19.