CN216448090U

CN216448090U - Lens, lamp shade and lighting assembly

Info

Publication number: CN216448090U
Application number: CN202122677641.9U
Authority: CN
Inventors: 陈林
Original assignee: Mynice Optoelectronics Co ltd
Current assignee: Mynice Optoelectronics Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-05-06
Anticipated expiration: 2031-11-02

Abstract

The application belongs to the technical field of illumination, and provides a lens, a lampshade and an illumination assembly, wherein the lens comprises an incident part and an emergent part, and the volume of the incident part is smaller than that of the emergent part; the light inlet part comprises a first through groove and two first reflection surfaces, the first through groove is sunken towards one side of the light outlet part and used for accommodating a light source, a first light inlet surface and two second light inlet surfaces are formed on the groove wall of the first through groove, the light outlet part comprises a second through groove sunken towards one side of the light inlet part, and a first light outlet surface and two second light outlet surfaces are formed on the groove wall of the second through groove; the lampshade comprises two first supporting walls, two second supporting walls and a lens; the lighting assembly includes a housing, a lamp panel, and a lamp shade. The application provides a lens has adopted light portion of going into and has cooperated with light portion of going out, can reduce the thickness of lens effectively to through set up first logical groove and set up the second logical groove on light portion of going into in light portion, can reduce the weight and the material consumption of lens effectively, thereby solved the big technical problem of condensing lens thickness.

Description

Lens, lamp shade and lighting assembly

Technical Field

The application belongs to the technical field of illumination, more specifically says, relates to a lens, lamp shade and lighting components.

Background

The LED lighting assembly generally includes an LED (light emitting diode) and a condensing lens, wherein the condensing lens covers a light emitting side of the LED, and the condensing lens collects light emitted from the LED within a certain illumination range, which is beneficial to improving the light utilization rate of the LED and reducing the loss of light energy. However, the shape of the condensing lens is generally TIR (total internal reflection) type lens, which is thick and occupies a large space.

SUMMERY OF THE UTILITY MODEL

The present application is directed to a lens, a lampshade and a lighting assembly, including but not limited to solving the technical problem of large thickness of the condensing lens.

In order to achieve the above object, an embodiment of the present application provides a lens, including an incident portion and an emergent portion, where a volume of the incident portion is smaller than a volume of the emergent portion;

the light incident part comprises a first through groove which is concave towards one side of the light emergent part and is used for accommodating a light source, and two first reflecting surfaces, wherein the two first reflecting surfaces are respectively positioned at two opposite sides of the first through groove;

the light emergent part comprises a second through groove which is sunken towards one side of the light incident part, the extending direction of the second through groove is consistent with the extending direction of the first through groove, a first light emergent surface and two second light emergent surfaces are formed on the groove wall of the second through groove, the first light emergent surface is opposite to the first light incident surface, and the two second light emergent surfaces are respectively connected to two opposite sides of the first light emergent surface;

the light entering the lens from the first light incident surface is refracted and then emitted from the first light emitting surface, the light entering the lens from the second light incident surface is refracted and then emitted to the first reflecting surface, and the light is reflected by the first reflecting surface and then emitted from the second light emitting surface.

Furthermore, two third light incident surfaces are formed on the groove wall of the first through groove, and the two third light incident surfaces are respectively connected to two opposite sides of the first light incident surface and are respectively connected with the two second light incident surfaces;

the second light-emitting surface is a second reflecting surface;

the light emergent part further comprises two third light emergent surfaces and two third reflecting surfaces, the two third light emergent surfaces are respectively connected to two opposite sides of the second through groove, the two third reflecting surfaces are respectively positioned on two opposite sides of the second through groove, and the third reflecting surfaces are positioned on one sides of the third light emergent surfaces close to the light incident part;

the light entering the lens from the third light incident surface is reflected to the second reflecting surface after being refracted, reflected to the third reflecting surface after being reflected by the second reflecting surface, and finally reflected from the third light emitting surface after being reflected by the third reflecting surface.

Further, the propagation direction of the light emitted from the second light emitting surface is parallel to the optical axis of the light source.

Further, the propagation direction of the light emitted from the third light emitting surface is parallel to the optical axis of the light source.

Further, the first light incident surface, the second light incident surface, the third light incident surface, the first light emitting surface, the second light emitting surface, the third light emitting surface, the first reflecting surface, the second reflecting surface, and the third reflecting surface are curved surfaces respectively.

Further, the first light emitting surface, the second light emitting surface and the third light emitting surface face the same side.

The embodiment of the application further provides a lens, including two first support walls, two second support walls and foretell lens, two first support wall respectively integrated into one piece in go out the relative both sides of light portion, two the second support wall respectively integrated into one piece in the both ends of lens, and with two first support wall integrated into one piece, in order to incite somebody to action the both ends in first logical groove are sealed.

Furthermore, a positioning part is formed on the surface of the first support wall, which is far away from the light-emitting side of the lens; the second supporting wall is provided with a wire passing hole, and a positioning column is arranged on the surface of the second supporting wall, which is far away from the light emitting side of the lens.

The embodiment of the application further provides a lighting assembly, including shell, lamp plate and foretell lamp shade, the lamp shade inlays to be located on the shell, the lens of lamp shade cover in the light-emitting side of lamp plate, the lamp plate hold in the shell, just the light source of lamp plate hold in the first logical inslot of lens.

Further, be equipped with two electricity connection ends on the lamp plate, the electricity connection end includes anodal and negative pole, lighting assembly still includes two pairs of wires, two pairs the wire is fixed in respectively the both ends of shell, and respectively with two the anodal and the negative pole of electricity connection end are connected.

The lens that this application embodiment provided, adopted light portion and light portion cooperation of going into, can reduce the thickness of lens effectively, and through set up first logical groove on going into light portion and set up the second logical groove on light portion, can reduce the weight and the material consumption of lens effectively, thereby solved the big technical problem of condensing lens thickness, make under the condition with the equal spotlight effect of traditional condensing lens, the thickness of lens is thinner, weight is lighter, save material more, manufacturing cost is lower.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic perspective view of a lens provided in an embodiment of the present application;

FIG. 2 is a schematic left-side view of a lens provided in an embodiment of the present application;

fig. 3 is a schematic view illustrating a propagation path of a light ray entering the lens from the first light incident surface according to the embodiment of the present disclosure;

fig. 4 is a schematic view illustrating a propagation path of a light ray entering the lens from the second light incident surface according to the embodiment of the present disclosure;

fig. 5 is a schematic view illustrating a propagation path of a light ray entering the lens from the third light incident surface according to the embodiment of the present disclosure;

fig. 6 is a schematic diagram illustrating a relationship between light rays entering the lens from the first light incident surface, the second light incident surface, and the third light incident surface and an optical axis according to the embodiment of the present application.

Fig. 7 is a schematic perspective view of a lamp cover provided in an embodiment of the present application;

fig. 8 is a schematic perspective view of a light incident side of a lamp cover according to an embodiment of the present disclosure;

FIG. 9 is a schematic cross-sectional view taken along line A-A of FIG. 7;

fig. 10 is a schematic perspective view of a lighting assembly provided in an embodiment of the present application;

FIG. 11 is a schematic cross-sectional view taken along line B-B of FIG. 10;

fig. 12 is a schematic view of a usage state of the lighting assembly according to the embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1-an illumination assembly, a-an angle between a light ray incident from the first light incident surface and an optical axis of the light source, b-an angle between a light ray incident from the second light incident surface and an optical axis of the light source, c-an angle between a light ray incident from the third light incident surface and an optical axis of the light source, and o-an optical axis of the light source;

10-a lampshade, 11-a lens, 12-a first supporting wall, 13-a second supporting wall, 14-a positioning part, 15-a positioning column, 111-an incident part, 112-an emergent part, 130-a wire-passing hole, 1110-a first through groove, 1111-a first incident surface, 1112-a second incident surface, 1113-a third incident surface, 1114-a first reflecting surface, 1120-a second through groove, 1121-a first emergent surface, 1122-a second emergent surface, 1123-a third emergent surface, 1124-a third reflecting surface, 1125-a first transition surface, 1126-a second transition surface, and 1127-a third transition surface;

20-shell, 21-shell, 22-bottom plate, 210-card slot;

30-lamp panel, 31-light source, 32-circuit board;

40-conducting wire.

Detailed Description

The technical solutions in 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 obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. One skilled in the art will explicitly or implicitly appreciate that the embodiments described herein can be combined with other embodiments.

It should be noted that: when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element.

The terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and operate, and thus are not to be construed as limiting the patent, and the specific meanings of the above terms will be understood by those skilled in the art according to specific situations.

The term "plurality" means two or more unless specifically limited otherwise.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic perspective view of a lens provided in an embodiment of the present application, and fig. 2 is a schematic left view of the lens provided in the embodiment of the present application. The application provides a lens 11, the lens 11 includes the light incident portion 111 and goes out the light portion 112, the volume of the light incident portion 111 is smaller than the volume of the light portion 112; the light incident portion 111 includes a first through groove 1110 recessed toward one side of the light exit portion 112 and used for accommodating a light source, and two first reflection surfaces 1114, where the two first reflection surfaces 1114 are respectively located at two opposite sides of the first through groove 1110, a groove wall of the first through groove 1110 is formed with a first light incident surface 1111 and two second light incident surfaces 1112, and the two second light incident surfaces 1112 are respectively located at two opposite sides of the first light incident surface 1111; the light emitting portion 112 includes a second through groove 1120 recessed toward the light incident portion 111, an extending direction of the second through groove 1120 is the same as an extending direction of the first through groove 1110, that is, a length direction of the second through groove 1120 is the same as a length direction of the first through groove 1110, a groove wall of the second through groove 1120 is formed with a first light emitting surface 1121 and two second light emitting surfaces 1122, the first light emitting surface 1121 is disposed opposite to the first light incident surface 1111, and the two second light emitting surfaces 1122 are respectively connected to two opposite sides of the first light emitting surface 1121, that is, two long sides of the first light emitting surface 1121 are respectively located at the same side as one long side of the two second light emitting surfaces 1122.

Specifically, the lens 11 is a long strip, and is made of a transparent optical material such as PC (Polycarbonate), PMMA (polymethyl methacrylate), silica gel, etc. through an injection molding process, the light incident portion 111 and the light exiting portion 112 are two parts separately named for more clearly explaining the structure of the lens 11, wherein the area of the reference surface where the light incident portion 111 and the light exiting portion 112 are joined is smaller than the area of the reference surface where the light exiting portion 112 and the light incident portion 111 are joined, the area of the surface of the light incident portion 111 far away from the light exiting portion 112 is smaller than the area of the reference surface where the light incident portion 111 and the light exiting portion 112 are joined, the area of the surface of the light exiting portion 112 far away from the light incident portion 111 is larger than the area of the reference surface where the light exiting portion 112 and the light incident portion 111 are joined, the first through groove 1110 is opened on the surface of the light incident portion 111 far away from the light exiting portion 112, the second through groove 1120 is opened on the surface of the light exiting portion 112 far away from the light incident portion 111, the length direction of the first through groove 1110 and the length direction of the second through groove 1120 are the same as the length direction of the lens 11, and the first through groove 1110 and the second through groove 1120 penetrate through two end faces of the lens 11 respectively; the two first reflection surfaces 1114 are located on two sidewalls of the light incident portion 111 and symmetrically distributed on two opposite sides of the first through groove 1110; the two second light incident surfaces 1112 are symmetrically distributed on two opposite sides of the first light incident surface 1111, the first light incident surface 1111 is used for covering light rays with a small included angle with the optical axis of the light source, and the second light incident surfaces 1112 are used for covering light rays with a large included angle with the optical axis of the light source; the first light-emitting surface 1121 is located at the bottom of the second through groove 1120, and the two second light-emitting surfaces 1122 extend from two long sides of the first light-emitting surface 1121 to two opposite sides of the first light-emitting surface 1121 respectively and are symmetrically distributed.

Referring to fig. 3, fig. 3 is a schematic view illustrating a propagation path of a light entering the lens from the first light incident surface according to the embodiment of the present application, in which the light entering the lens 11 from the first light incident surface 1111 is refracted and then emitted from the first light emitting surface 1121, and is converged at the light emitting side of the lens 11 and then irradiated within a certain range.

Referring to fig. 4, fig. 4 is a schematic view illustrating a propagation path of a light entering the lens from the second light incident surface according to the embodiment of the present disclosure, the light entering the lens 11 from the second light incident surface 1112 is refracted, then emitted to the first reflecting surface 1114, reflected by the first reflecting surface 1114, and then emitted from the second light emitting surface 1122. The propagation direction of the light emitted from the second light-emitting surface 1122 is parallel to the optical axis of the light source 31.

The application provides a lens 11, adopted light portion 111 and light portion 112 cooperation of going into, can reduce lens 11's thickness effectively, and through set up first logical groove 1110 on light portion 111 and set up second logical groove 1120 on light portion 112 of going into, can reduce lens 1's weight and material consumption effectively, thereby the technical problem that condenser lens thickness is big has been solved, make under the condition with the equal spotlight effect of traditional condenser lens, lens 11's thickness is thinner, weight is lighter, save material more, manufacturing cost is lower.

Further, referring to fig. 2, two third light incident surfaces 1113 are formed on the walls of the first through groove 1110, and the two third light incident surfaces 1113 are respectively connected to two opposite sides of the first light incident surface 1111 and are respectively connected to the two second light incident surfaces 1112; the second light-emitting surface 1122 is a second reflecting surface, that is, when the light emitted to the second light-emitting surface 1122 does not satisfy the law of total reflection, a portion of the light can be emitted out of the lens 11 through the second light-emitting surface 1122, at this time, the second light-emitting surface 1122 functions as a light-emitting surface, when the light emitted to the second light-emitting surface 1122 satisfies the law of total reflection, the portion of the light can be reflected by the second light-emitting surface 1122, at this time, the second light-emitting surface 1122 is a second reflecting surface and functions as a reflecting surface; the light exiting part 112 further includes two third light exiting surfaces 1123 and two third reflecting surfaces 1124, wherein the two third light exiting surfaces 1123 are respectively connected to two opposite sides of the second through groove 1120, the two third reflecting surfaces 1124 are respectively located on two opposite sides of the second through groove 1120, and the third reflecting surfaces 1124 are located on one side of the third light exiting surface 1123 close to the light entering part 111.

Specifically, the third light incident surface 1113 is connected between the first light incident surface 1111 and the second light incident surface 1112, for connecting the first light incident surface 1111 and the second light incident surface 1112, referring to fig. 6, fig. 6 is a schematic view showing a relationship between light rays entering the lens from the first light incident surface, the second light incident surface, and the third light incident surface and an optical axis, in which the first light incident surface 1111 can cover light rays having an included angle a of 0 to 10 ° ± 2 ° with the optical axis o of the light source, the second light incident surface 1112 can cover light rays having an included angle b of 50 ° ± 5 ° to 90 ° with the optical axis o of the light source, the third light incident surface 1113 can cover light rays with an included angle c of 10 degrees +/-2 degrees to 50 degrees +/-5 degrees with the optical axis o of the light source, therefore, the light incident part 111 can cover most of light of the light source, so that most of light emitted by the light source can be collected on the light emergent side of the lens 11 through the lens 11; the two third light-emitting surfaces 1123 are located on the surface of the light-emitting portion 112 away from the light-entering portion 111, and extend from two edges of the notch of the second through groove 1120 to two opposite sides of the second through groove 1120 respectively, and are symmetrically distributed, and the third light-emitting surfaces 1123 are connected with the second light-emitting surface 1122 through the first transition surface 1125; the two third reflecting surfaces 1124 are located on two side walls of the light emergent portion 112 and symmetrically distributed on two opposite sides of the second through groove 1120, and the third reflecting surfaces 1124 are connected with the third light emergent surface 1123 through a second transition surface 1126 and connected with the first reflecting surface 1114 through a third transition surface 1127.

Referring to fig. 5, fig. 5 is a schematic view of a propagation path of a light entering the lens from the third light incident surface according to the embodiment of the present application, in which the light entering the lens 11 from the third light incident surface 1113 is refracted, then emitted to the second reflection surface (the second light incident surface 1112), reflected by the second reflection surface, emitted to the third reflection surface 1124, and finally emitted from the third light emitting surface 1123 after being reflected by the third reflection surface 1124. And the propagation direction of the light emitted from the third light-emitting surface 1123 is parallel to the optical axis of the light source 31.

Further, referring to fig. 2, the first light incident surface 1111, the second light incident surface 1112, the third light incident surface 1113, the first light emitting surface 1121, the second light emitting surface 1122, the third light emitting surface 1123, the first reflecting surface 1114, the second reflecting surface (the second light emitting surface 1122), and the third reflecting surface 1124 are curved surfaces, respectively. The first light incident surface 1111, the second light incident surface 1112, the third light incident surface 1113, the first light emitting surface 1121, the second light emitting surface 1122, the third light emitting surface 1123, the first reflecting surface 1114, the second reflecting surface (the second light emitting surface 1122), and the third reflecting surface 1124 are ensured to realize their respective optical functions.

Further, referring to fig. 1 and fig. 2, the first light-emitting surface 1121, the second light-emitting surface 1122, and the third light-emitting surface 1123 face the same side. That is, the first light-emitting surface 1121, the second light-emitting surface 1122 and the third light-emitting surface 1123 all face the light-emitting side of the lens 11, so that the light emitted from the first light-emitting surface 1121, the second light-emitting surface 1122 and the third light-emitting surface 1123 is focused on the light-emitting side of the lens 11, which is beneficial to improving the light energy utilization rate of the light source.

Please refer to fig. 7 to 9, wherein fig. 7 is a schematic perspective view of a lamp cover according to an embodiment of the present disclosure, fig. 8 is a schematic perspective view of a light incident side of the lamp cover according to the embodiment of the present disclosure, and fig. 9 is a schematic cross-sectional view along a direction a-a in fig. 7. The present application further provides a lampshade 10, the lampshade 10 includes two first supporting walls 12, two second supporting walls 13 and the lens 11 provided by the above embodiment, wherein the two first supporting walls 12 are respectively integrally formed at two opposite sides of the light emergent portion 112, the two second supporting walls 13 are respectively integrally formed at two ends of the lens 11, and are integrally formed with the two first supporting walls 12, so as to be able to seal two ends of the first through groove 1110.

Specifically, the whole lamp cover 10 is molded by one-step casting through an injection molding process; the two first supporting walls 12 are respectively formed by extending from two side walls of the light emergent portion 112 to one side of the light incident portion 111, and the two second supporting walls 13 are two end walls of the lamp cover 10 and surround the two first supporting walls 12 to form an accommodating space for accommodating the light incident portion 111.

The lamp housing 10 provided by the present application supports the lens 11 through the first support wall 12 and the second support wall 13, and can mount the lens 11 on the lighting assembly, so that the lens 11 can be conveniently applied on the lighting assembly.

Further, referring to fig. 7 to 9, a positioning portion 14 is formed on a surface of the first supporting wall 12 away from the light emitting side of the lens 11; meanwhile, a wire through hole 130 is opened on the second supporting wall 13, and a positioning column 15 is disposed on a surface of the second supporting wall 13 away from the light emitting side of the lens 11.

Specifically, the positioning portion 14 extends from the edge of the first supporting wall 12 away from the light exit portion 112 to the light entrance side of the lens 11, protrudes from the surface of the first supporting wall 12 facing the light entrance side of the lens 11, and can be inserted into the housing 21 of the housing 20 of the illumination assembly (see fig. 11), so that the lamp cover 10 and the housing 21 are positioned; the positioning post 15 protrudes from the middle of the surface of the second supporting wall 13 facing the light incident side of the lens 11, and can be inserted into the bottom plate 22 of the housing 20, so that the lampshade 10 and the bottom plate 22 are positioned.

Please refer to fig. 10 and fig. 11 in combination, wherein fig. 10 is a schematic perspective view of an illumination assembly according to an embodiment of the present application, and fig. 11 is a schematic cross-sectional view along the direction B-B in fig. 10. The application also provides a lighting assembly 1, lighting assembly 1 includes shell 20, lamp plate 30 and the lamp shade 10 that the above-mentioned embodiment provided, wherein, lamp shade 10 inlays and establishes on shell 20 to lens 11 of lamp shade 10 covers in the light-emitting side of lamp plate 30, and lamp plate 30 holds in shell 20, and light source 31 of lamp plate 30 holds in first logical groove 1110 of lens 11.

Specifically, the housing 20 includes a housing 21 and a bottom plate 22, wherein the housing 21 is made of light-tight materials such as PVC (Polyvinyl chloride), TPU (Thermoplastic polyurethanes), ABS (acrylonitrile (a), butadiene (B), and styrene (S), and is manufactured by an injection molding process, the bottom plate 22 is made of PU (polyurethane) glue, silica gel, and resin glue, and the housing 21 is provided with an accommodating groove and an opening, the accommodating groove is communicated with the opening, the lamp panel 30 is accommodated in the accommodating groove, the lamp shade 10 is embedded in the accommodating groove, and the notch of the accommodating groove is covered, and the bottom plate 22 covers the opening of the housing 21; the lamp panel 30 includes a light source 31 and a circuit board 32, the light source 31 is preferably an LED, and the LED is mounted on the circuit board 32.

The application provides a lighting assembly 1 has adopted lamp shade 10 to cover in the light-emitting side of lamp plate 30 for the light that light source 31 sent can be through the light-emitting side of lens 11 gathering at lighting assembly 1, is favorable to promoting light source 31's light energy utilization ratio, makes lighting assembly 1's illuminance higher.

Further, referring to fig. 10 and 11, two electrical connection ends are disposed on the lamp panel 30, each electrical connection end includes a positive electrode and a negative electrode, and meanwhile, the lighting assembly 1 further includes two pairs of wires 40, and the two pairs of wires 40 are respectively fixed at two ends of the housing 20 and respectively connected to the positive electrodes and the negative electrodes of the two electrical connection ends of the lamp panel 30.

Specifically, two electrical connection terminals are provided on the wiring board 32, each pair of wires 40 includes two wires 40, each wire 40 is soldered to the positive or negative electrode of the electrical connection terminal, and current can be transmitted to the wiring board 32 or led out from the wiring board 32 through each pair of wires 40. In practical use, please refer to fig. 12, and fig. 12 is a schematic view illustrating a use state of the lighting assembly according to the embodiment of the present application, a plurality of lighting assemblies 1 may be connected in series for use, and when two adjacent lighting assemblies 1 are connected in series, they are connected by a pair of wires 40 at an end of the housing 20, so as to facilitate the convenience of the lighting assemblies 1 in use.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.

Claims

1. A lens comprises an incident light part and an emergent light part, and is characterized in that the volume of the incident light part is smaller than that of the emergent light part;

2. The lens as claimed in claim 1, wherein the wall of the first through groove further defines two third incident surfaces, the two third incident surfaces are respectively connected to two opposite sides of the first incident surface and respectively connected to the two second incident surfaces;

the second light-emitting surface is a second reflecting surface;

3. The lens of claim 1, wherein a propagation direction of the light emitted from the second light emitting surface is parallel to an optical axis of the light source.

4. The lens of claim 2, wherein a propagation direction of the light emitted from the third light emitting surface is parallel to an optical axis of the light source.

5. The lens of claim 2, wherein the first light incident surface, the second light incident surface, the third light incident surface, the first light emitting surface, the second light emitting surface, the third light emitting surface, the first reflecting surface, the second reflecting surface, and the third reflecting surface are curved surfaces, respectively.

6. The lens of claim 2, wherein the first light emitting surface, the second light emitting surface, and the third light emitting surface face a same side.

7. A lamp cover comprising two first supporting walls, two second supporting walls and the lens according to any one of claims 1 to 6, wherein the two first supporting walls are integrally formed at opposite sides of the light emergent portion, and the two second supporting walls are integrally formed at both ends of the lens and integrally formed with the two first supporting walls to close both ends of the first through groove.

8. The lamp shade of claim 7, wherein a positioning part is formed on the surface of the first supporting wall away from the light-emitting side of the lens; the second supporting wall is provided with a wire passing hole, and a positioning column is arranged on the surface of the second supporting wall, which is far away from the light emitting side of the lens.

9. The utility model provides a lighting assembly, its characterized in that, includes shell, lamp plate and claim 7 or 8 the lamp shade, the lamp shade inlays to be located on the shell, the lens of lamp shade cover in the light-emitting side of lamp plate, the lamp plate hold in the shell, just the light source of lamp plate hold in the first logical inslot of lens.

10. The lighting assembly according to claim 9, wherein the lamp panel is provided with two electrical connection ends, the electrical connection ends comprise a positive electrode and a negative electrode, the lighting assembly further comprises two pairs of wires, and the two pairs of wires are respectively fixed at two ends of the housing and respectively connected with the positive electrode and the negative electrode of the two electrical connection ends.