CN207610076U - A kind of lamps and lanterns - Google Patents

Abstract

The utility model discloses a lamp, comprising: a lamp body and a light source assembly, the lamp body has a light emitting surface and an installation base surface, the light source assembly is installed on the installation base surface and is located in the lamp body, the The light source assembly includes a substrate, a light source assembled on the substrate, and a lens covering the light source. The light source faces the light-emitting surface, and the center line of the light emitting angle of the light source is used as a reference. The center line is relative to the light source. The installation base is inclined. The lamp provided by the utility model is based on the center line of the light emitting angle of the light source, and the center line is inclined relative to the installation base surface, so that the light source is placed obliquely, thereby expanding the irradiation diffusion angle of the light source, reducing the number of light sources used and the number of light sources installed. The number of substrates effectively reduces production costs; the unique lens structure makes the light emitting surface evenly luminous.

Description

a lamp

technical field

The utility model belongs to the technical field of lighting, in particular to a lamp.

Background technique

In order to achieve comprehensive illumination, conventional lamps are usually provided with multiple light sources. The number of substrates required for multiple light sources in Anzhuan is also large, and the cost of lamps is relatively high.

In related technologies, a lens is arranged in the light emitting direction of the light source to expand the light emitting angle of the light source, thereby reducing the number of light sources and the number of substrates on which the light sources are installed, thereby reducing the cost of lamps. However, the angle of diffusion of light by the lens is limited, so that the existing lamps still need more light sources and substrates on which the light sources are installed, and the cost of the lamps is still high.

Utility model content

The embodiment of the utility model provides a lamp, which effectively reduces the production cost of the lamp.

In order to achieve the above object, the utility model embodiment adopts the following technical solutions:

A lamp, comprising: a lamp body and a light source assembly,

The lamp body has a light emitting surface and an installation base surface, the light source assembly is installed on the installation base surface and located in the lamp body,

The light source assembly includes a substrate, a light source assembled on the substrate, and a lens covering the light source,

The light source faces the light-emitting surface, and the center line of the light emitting angle of the light source is used as a reference, and the center line is inclined relative to the installation base surface;

The lens has a bottom surface close to the side of the light source, a top surface opposite to the bottom surface, two sides connecting the bottom surface and the top surface,

The two side surfaces are respectively located on both sides of the center line, and are inclined from the bottom surface to the direction away from the center line from the direction of the top surface,

The top surface includes two planar sections, two transition sections and a convex section, the convex section is located between the two planar sections and its two sides are respectively connected to the planar section through a transition section, The distance between the convex section and the bottom surface in a direction perpendicular to the bottom surface is smaller than the distance between the planar section and the bottom surface along this direction, and the convex section is convex in a direction away from the bottom surface, forming curved convex surface,

The bottom surface has a slot with a trapezoidal cross section, the light source is located in the slot, and two corners of the trapezoidal slot near the top surface are obtuse angles.

further,

The lens includes a first light distribution part, a second light distribution part and a third light distribution part, the part between the top surface of the groove and the convex surface is the third light distribution part, and the third light distribution part The two sides of the part are the first light distribution part and the second light distribution part,

The light emitting surface sequentially includes a first area, a second area and a third area from the direction away from the light source to close to the light source;

The first light distribution part is located on the side of the center line close to the light exit surface, and can guide the received light to the first area; the second light distribution part is located on the center line away from the light exit surface. One side of the surface, and can guide the received light to the second area; the third light distribution part is located between the first light distribution part and the second light distribution part, and can guide the received light to the second area The received light is directed to the third area.

Further, the included angle between the vertical line of the center line and the vertical line of the installation base is in the range of 10°-40° or -40°--10°.

further,

The first light distribution part includes a first incident surface, a first reflection surface and a first exit surface, the first incident surface can refract the light emitted by the light source to the first reflection surface, and the first The reflective surface can reflect the received light to the first exit surface, and the first exit surface can refract the received light to the first region.

Further, the first incident surface gradually approaches the midline from the side close to the light source to the side far away from the light source, and the angle difference between the first incident surface and the midline is 0° ~10°, the first reflective surface is gradually away from the midline from the side close to the light source to the side away from the light source, and the angle difference between the first reflective surface and the midline is 10° °～20°.

Further, the first reflective surface is sawtooth-shaped.

further,

The second light distribution part includes a second incident surface, a second reflective surface and a second outgoing surface, the second incident surface can refract the light emitted by the light source to the second reflective surface, and the second The reflective surface can reflect the received light to the second exit surface, and the second exit surface can refract the received light to the second region.

Further, the second incident surface gradually approaches the center line from the side close to the light source to the side far away from the light source, and the angle difference between the second incident surface and the center line is 0 °～10°, the second reflective surface is gradually away from the center line from the side close to the light source to the side far away from the light source, and the angle difference between the second reflective surface and the center line is respectively It is 10°～20°.

further,

The third light distribution part includes a third incident surface and a third exit surface, the third incident surface can refract the light emitted by the light source to the third exit surface, and the third exit surface can refract the light emitted by the light source to the third exit surface. The received light is refracted to the third area.

Further, among the rays located on both sides of the center line, the included angle between the rays on the side close to the light-emitting surface and the center line is positive, and the angle between the rays on the other side and the center line is negative. value, among the light emitted by the light source, the light with an angle between 0° to X° and -X° to 0° with the center line enters the third light distribution part, and the light with an angle between X° with the center line Other light rays enter the first light distribution part, and light rays with an angle other than -X° with the center line enter the second light distribution part;

Wherein, the value of X is 20-30.

Further, the maximum width of the lens in the vertical direction parallel to the midline is greater than 20 mm.

Further, the light source assembly includes two groups of light sources, and the two groups of light sources are distributed symmetrically.

Further, the two groups of light sources are respectively covered by two lenses.

Further, the two lenses are molded separately or integrally.

Further, the lamp body includes a chassis and a mask connected to the chassis, and the light-emitting surface is the outer surface of the mask.

Further, the chassis includes a bottom wall and a side wall, the mask has only one outer surface, the bottom wall is opposite to the mask, and the side wall connects the bottom wall and the mask.

Further, the mask includes a top surface and a side surface, the chassis is opposite to the top surface, and the side surfaces connect the top surface and the chassis.

Further, the lamp is a panel lamp.

The at least one technical solution adopted in the embodiment of the utility model can achieve the following beneficial effects:

The lamp provided by the utility model is based on the center line of the light emitting angle of the light source, and the center line is inclined relative to the installation base surface, so that the light source is placed obliquely, thereby expanding the irradiation diffusion angle of the light source, reducing the number of light sources used and the number of light sources installed. The number of substrates effectively reduces production costs; the unique lens structure makes the light emitting surface evenly luminous.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model and constitute a part of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model . In the attached picture:

Fig. 1 is a perspective view of a lamp of a preferred embodiment of the present invention;

Figure 2 is an exploded view of the lamp shown in Figure 1;

Fig. 3 is a sectional view of the lamp shown in Fig. 1 along the direction A-A;

Fig. 4 is a schematic diagram of the optical path of the lamp shown in Fig. 1;

Fig. 5 is an exploded view of another embodiment of a lamp;

Fig. 6 is an exploded view of another embodiment of the lamp.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with specific embodiments of the utility model and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The technical solutions provided by the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, this embodiment provides a lamp, including: a chassis 1, a light source assembly 2 installed in the chassis 1, a mask (which may be a diffusion plate) 3 that blocks the chassis 1, and a light source between the mask 3 and the Frame 4 between chassis 1. The chassis 1 , the mask 3 and the frame 4 together form a lamp body. The lamp body has a mounting base and a light emitting surface. The light source assembly 2 is installed on the mounting base and is located in the lamp body, and emits light through the light emitting surface.

It should be noted here that, in some embodiments, the light-emitting surface can be a solid surface, for example, the outer surface of the mask 3 in this embodiment, and in other embodiments, the lamp can also have no mask. At this time, the light-emitting surface is a solid surface. virtual surface. In the embodiment of the present invention, the light emitting surface may include a first area A1, a second area A2 and a third area A3, and the second area A2 is located between the first area A1 and the third area A3.

In addition, the lamps in this embodiment are LED panel lamps, of course, the utility model is not limited thereto, and the lamps in other embodiments may also be other forms of lamps such as ceiling lamps.

The structure of each component in the lamp provided by the utility model will be described in detail below.

The chassis 1 includes a bottom wall 11 , a side wall 12 connected to the bottom wall 11 , and a support portion 13 recessed inward from the middle of the bottom wall 11 . In this embodiment, the inner surface of the bottom wall 11 is the installation base. The bottom wall 11 and the side wall 12 surround and form a receiving space for receiving the light source assembly 2 . In some embodiments without a mask, the cross-section of the top opening of the receiving space is the light-emitting surface of the lamp body. In this embodiment, the supporting portion 13 is formed by inwardly recessing from the middle of the bottom wall 11 for supporting the light source assembly 2 . The surface of the supporting portion 13 is the supporting surface. Of course, the present invention is not limited thereto. For example, in other embodiments, the support portion 13 can also be formed on the bottom wall 11 alone instead of being recessed inward from the middle of the bottom wall 11 .

The light source assembly 2 includes two groups of light sources 21 , two substrates 22 (which may be printed circuit boards or flexible FPCs) on which the two groups of light sources 21 are installed respectively, and two lenses 23 covering the two groups of light sources 21 respectively. Of course, in other embodiments of the present invention, the number of light source groups included in the light source assembly 2 may also be different from this embodiment, and the present invention does not limit this.

The light source 21 faces the light-emitting surface. In this embodiment, the center line of the light emitting angle of the light source 21 is used as a reference, and the center line is inclined relative to the installation base surface. The irradiation diffusion angle of the light source is effectively increased, thereby reducing the number of light sources used and the number of substrates on which the light sources are installed, thereby effectively reducing production costs.

In each group of light sources, the number of light sources 21 is several, which can be set according to actual conditions. In this embodiment, several light sources 21 are arranged in a row to form a group of light sources, but the utility model is not limited thereto. In other embodiments, the arrangement of light sources 21 can also be different from this embodiment, for example , used in circular lamps, the light sources 21 can also be arranged in a ring around, refer to FIG. 5 . Meanwhile, in this embodiment, the light source 21 is an LED lamp bead, of course, other embodiments may also adopt other forms of light sources, and the present invention is not limited thereto. The first area A1 , the second area A2 and the third area A3 of the light emitting surface are arranged in sequence from a direction away from the light source 21 to close to the light source 21 .

The substrate 22 is used for mounting the light source 21 . The substrate 22 is fixed on the supporting surface of the supporting part 13, so that the supporting surface supports two groups of light sources. In this embodiment, the base plate 22 is two hard boards, which can be fixed on two supporting surfaces. Of course, in other embodiments of the present invention, the substrate 22 can also be a flexible board, which can be bonded to the supporting surface.

In this embodiment, the surface of the substrate 22 is the mounting surface of the light source 21, and each of the two groups of light sources 21 has a mounting surface, and the mounting surface is the surface where the vertical line of the midline of the light emitting angle of the light source 21 is located. As shown in FIG. 3 , the included angle between the mounting surface of a group of light sources (that is, the vertical line of the midline of the light emitting angle of the light source 21) and the vertical direction is a, and the range of a is in the range of -40° to -10°. The angle between the installation surface of another group of light sources and the vertical direction is b, and the range of b is in the range of 10°-40°, so that the center line of the light emitting angle of the light source 21 is inclined relative to the installation base surface.

Specifically, in this embodiment, the two substrates 22 are placed symmetrically, that is, two groups of light sources 21 are distributed symmetrically. At this time, installing the light source assembly 2 on the support portion 13 at the middle position of the chassis 1 can conveniently realize full light emission on the light emission surface of the panel light. Of course, the present invention is not limited thereto, and other embodiments can also set the angle between the installation surface of each group of light sources and the vertical direction according to the actual situation.

The lens 23 covers the light source 21 . Specifically, the lens 23 is installed on the substrate 22 . The installation of the lens 23 can effectively distribute the distribution of the light emitted by the two groups of light sources 21 on the light emitting surface, so that the panel light emits light evenly. In this embodiment, there are two groups of light sources 21 , correspondingly, there are two lenses 23 , and the two lenses respectively cover the two groups of light sources 21 .

In this embodiment, the substrate 22 and the lens 23 are strip-shaped, and the lamp has only one set of substrate 22 and one set of lens 23 . The lamps applied to other embodiments, such as ceiling lamps, can also be used with multiple sets of substrates 22 or lenses 23 when the size is large, as shown in FIG. 6 .

In addition, each group of light sources 21 can also be covered by a plurality of lenses 23, and the plurality of lenses 23 form a group and are arranged along the direction in which the light sources 21 are arranged. That is, in other embodiments, the light source assembly 2 can include two groups of lenses 23, two The group lenses 23 respectively cover the two groups of light sources 21 . In this embodiment, each lens group includes a lens 23 .

The material of the lens 23 may be polymethyl methacrylate (PMMA), polycarbonate (PC), even silica gel or other optical grade materials. In this embodiment, the two lenses 23 are separately injection molded. In other embodiments of the present utility model, the two lenses 23 can also be integrally formed by extrusion molding.

More specifically, referring to FIG. 4 , in this embodiment, each lens 23 has a bottom surface close to the light source, a top surface opposite to the bottom surface, and two side surfaces connecting the bottom surface and the top surface. The two side surfaces are respectively located on both sides of the centerline and are inclined from the bottom to the top surface toward the centerline direction away from the light emitting angle of the light source. The top surface consists of two planar segments, two transition segments, and a convex segment. The convex section is located between two planar sections, and its two sides are respectively connected to the planar section through a transition section. The distance between the convex section and the bottom surface along the direction perpendicular to the bottom surface is smaller than the distance between the planar section and the bottom surface along this direction. The convex section's It protrudes toward the direction away from the bottom surface, forming an arc-shaped convex surface. The bottom surface has a slot with a trapezoidal section, the light source 21 is located in the slot, and the two corners of the trapezoidal slot near the top surface are obtuse angles. The lens 23 of this embodiment disperses the light concentrated in the middle area, avoiding the uneven situation where the middle part is too bright and the surroundings are not bright enough, so that the light emitting surface emits light evenly.

Each lens 23 includes a first light distribution part 231 , a second light distribution part 232 and a third light distribution part 233 . The part between the top surface and the convex surface of the groove of the lens 23 is the third light distribution part 233 , and the first light distribution part 231 and the second light distribution part 232 are formed on both sides of the third light distribution part 233 .

Based on the center line of the light emitting angle of the light source, the first light distribution part 231 is located on the side of the center line close to the light emitting surface, and can guide the received light to the first area A1; the second light distribution part 232 is located on the side of the center line The side away from the light-emitting surface, and can guide the received light to the second area A2; the third light distribution part 233 is located between the first light distribution part 231 and the second light distribution part 232, and can guide the received light to the second area A2; The light is directed to the third area A3.

Specifically, in this embodiment, among the light rays located on both sides of the center line of the light emission angle of the light source 21, the angle between the light rays on the side close to the light exit surface and the center line is a positive value, and the angle between the light rays on the other side and the center line is positive. Angles are negative. Among the light rays emitted by the light source 21, the light rays with an angle between 0° to X° (shown by c in the figure) and -X° to 0° (shown by d in the figure) with the center line enter the third light distribution part 233 , and The light with an angle other than X° from the centerline enters the first light distribution part 231 , and the light with an angle other than -X° with the centerline enters the second light distribution part 232 , where X is 20-30.

The first light distribution part 231 includes a first incident surface 2311 (a side groove surface of a trapezoidal groove), a first reflective surface 2312 (a side surface of the lens 23 ), and a first exit surface 2313 (a side surface of the top surface of the lens 23 ). plane segment). The first reflective surface 2312 satisfies the condition of total reflection, that is, the light incident on the first reflective surface 2312 propagates from the optically denser medium to the optically rarer medium, and the incident angle of the light is greater than the critical angle. Specifically, in this embodiment, the first incident surface 2311 gradually approaches the midline from the side close to the light source 21 to the side away from the light source 21, and the angle difference between the first incident surface 2311 and the midline is 0°-10° , that is, the included angle e between the first incident surface 2311 and the mounting surface (ie, the perpendicular line to the midline of the light emitting angle of the light source 21 ) is respectively 90°˜100°. The first reflective surface 2312 is gradually away from the centerline from the side close to the light source 21 to the side away from the light source 21, and the angle difference between the first reflective surface 2312 and the centerline is 10°-20°, that is, the first reflective surface 2312 and the centerline Angles g between the mounting surfaces are respectively 70°-80°. Therefore, the light emitted by the light source 21 is refracted into the first light distribution part 231 through the first incident surface 2311 and then hits the first reflective surface 2312. The light on the reflective surface 2312 is totally reflected and returned to the inside of the first light distribution part 231 , and then refracted by the first exit surface 2313 before exiting, and irradiates the first area A1 at the edge of the light exit surface.

The second light distribution part 232 includes a second incident surface 2321 (the other side groove surface of the trapezoidal groove), a second reflective surface 2322 (the other side surface of the lens 23 ), and a second exit surface 2323 (the other side surface of the lens 23 top surface). plane segment on one side). The second incident surface 2321 satisfies the condition of total reflection, that is, the light incident on the second reflecting surface 2321 propagates from the optically denser medium to the optically rarer medium, and the incident angle of the light is greater than the critical angle. Specifically, in this embodiment, the second incident surface 2321 gradually approaches the midline from the side close to the light source 21 to the side far away from the light source 21, and the angle differences between the second incident surface 2321 and the midline are 0°-10°. °, that is, the included angle f between the second incident surface and the installation surface (ie, the perpendicular line to the midline of the light emitting angle of the light source 21 ) is 80°˜90°, respectively. The second reflective surface 2322 is gradually away from the center line from the side close to the light source 21 to the side far away from the light source 21, and the angle difference between the second reflective surface 2322 and the center line is 10°-20°, that is, the second reflective surface 2322 The included angle h with the mounting surface is 100°～110° respectively. Therefore, the light emitted by the light source 21 is refracted into the second light distribution part 232 through the second incident surface 2321 and then hits the second reflecting surface 2322. The light on the reflective surface 2322 is totally reflected and returns to the second light distribution part 232, and then refracted by the second exit surface 2323 before exiting, and irradiates the second area A2 between the outermost edge and the central part of the light exit surface.

The third light distribution portion 233 includes a third incident surface 2331 (the top surface of the trapezoidal groove) and a third exit surface 2332 (the convex section of the top surface of the lens 23 ). The combination of the third incident surface 2331 and the third outgoing surface 2332 forms an approximate convex lens surface, which functions to gather light rays. The light emitted by the light source 21 is refracted by the third incident surface 2331, and then the angle becomes smaller, and propagates to the third exit surface 2332, and then converges and converges on the third exit surface 2332 to form a light beam with a small angle, which is refracted and emitted to the light exit surface. The third area A3 of the central part.

Of course, the utility model is not limited to this, and the lens surface can also be set in other forms, so that the first light distribution part, the second light distribution part and the third light distribution part are respectively used to guide the light emitted by the light source to the The first area, the second area and the third area of the light emitting surface.

In addition, in this embodiment, the maximum width of the lens in the direction of the vertical line parallel to the midline of the light emitting angle of the light source 21 is larger than 20 mm, so as to facilitate the design of the optical structure.

The first light distribution part 231, the second light distribution part 232, and the third light distribution part 233 respectively realize the light output of each area (the first area A1, the second area A2, and the third area A3) of the light output surface, and then make the panel light reach Optical effect of uniform light. At the same time, in order to make the luminous effect of the panel light more uniform, the first reflective surface 2312 in this embodiment has a microstructure zigzag, which destroys the total reflection condition, so that a small part of the light transmitted to the first incident surface 2311 leaks out, and the leaked part The light is responsible for illuminating the central part of the light surface.

Of course, the present utility model is not limited thereto. In other embodiments, the first reflective surface 2312 may not form a microstructure zigzag, or the first reflective surface 2312 may also be etched, so that the surface of the first reflective surface 2312 Roughening destroys the total reflection condition, thereby causing a small part of the light rays propagating to the first incident surface 2311 to leak out.

At the same time, in this embodiment, the light emitted by the light source 21 is mixed light, in which there are many light components in the yellow light band, and the lens 23 will play the role of a prism to a certain extent, and will convert the light in the light emitted by the light source 21. The yellow light component is separated, which leads to yellow light spots in the light output of the panel light. Therefore, each surface of the lens 23 in this embodiment can be provided with relatively light etching to scatter the light, increase the light mixing effect, prevent the formation of macula, and meet the consistency of the light color.

The outer surface of the mask 3 is the light-emitting surface, which further blocks the chassis 1 . The material of the mask 3 can be PC, PMMA or PS, and has a certain haze for light mixing. In this embodiment, the lamp emits light from one side, and the mask 3 has only one outer surface (ie, the light emitting surface), and the mask 3 is opposite to the bottom wall 11 of the chassis 1 , and the side wall 12 of the chassis 1 connects the mask 3 and the bottom wall 11 . In other embodiments, the lamp can also emit light from multiple surfaces. At this time, the mask has multiple light emitting surfaces, which can include a top surface and side surfaces. At this time, the chassis only has a flat bottom wall, and the bottom wall is opposite to the top surface. Connect the top surface to the chassis.

The frame 4 is used to fix the mask 3 to the chassis 1, and then assembled to form a panel light.

In summary, the lamp provided by the utility model is based on the center line of the light emitting angle of the light source, and the center line is inclined relative to the installation base, so that the light source is placed obliquely, thereby expanding the irradiation diffusion angle of the light source and reducing the number of light sources used As well as the number of substrates installed with light sources, the production cost is effectively reduced; the unique lens structure makes the light emitting surface evenly luminous.

The above descriptions are only examples of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the scope of claims of the present utility model.

Claims (18)

1. A lamp, characterized in that it comprises: a lamp body and a light source assembly, The lamp body has a light emitting surface and an installation base surface, the light source assembly is installed on the installation base surface and located in the lamp body, The light source assembly includes a substrate, a light source assembled on the substrate, and a lens covering the light source, The light source faces the light-emitting surface, and the center line of the light emitting angle of the light source is used as a reference, and the center line is inclined relative to the installation base surface; The lens has a bottom surface close to the side of the light source, a top surface opposite to the bottom surface, two sides connecting the bottom surface and the top surface, The two side surfaces are respectively located on both sides of the center line, and are inclined from the bottom surface to the direction away from the center line from the direction of the top surface, The top surface includes two planar sections, two transition sections and a convex section, the convex section is located between the two planar sections and its two sides are respectively connected to the planar section through a transition section, The distance between the convex section and the bottom surface in a direction perpendicular to the bottom surface is smaller than the distance between the planar section and the bottom surface along this direction, and the convex section is convex in a direction away from the bottom surface, forming curved convex surface, The bottom surface has a slot with a trapezoidal cross section, the light source is located in the slot, and two corners of the trapezoidal slot near the top surface are obtuse angles. 2. The lamp according to claim 1, characterized in that, The lens includes a first light distribution part, a second light distribution part and a third light distribution part, the part between the top surface of the groove and the convex surface is the third light distribution part, and the third light distribution part The two sides of the part are the first light distribution part and the second light distribution part, The light emitting surface sequentially includes a first area, a second area and a third area from the direction away from the light source to close to the light source; The first light distribution part is located on the side of the center line close to the light exit surface, and can guide the received light to the first area; the second light distribution part is located on the center line away from the light exit surface. One side of the surface, and can guide the received light to the second area; the third light distribution part is located between the first light distribution part and the second light distribution part, and can guide the received light to the second area The received light is directed to the third area. 3. The lamp according to claim 2, wherein the included angle between the vertical line of the center line and the vertical line of the installation base is in the range of 10°-40° or -40°--10°. 4. The lamp according to claim 2, characterized in that, The first light distribution part includes a first incident surface, a first reflection surface and a first exit surface, the first incident surface can refract the light emitted by the light source to the first reflection surface, and the first The reflective surface can reflect the received light to the first exit surface, and the first exit surface can refract the received light to the first region. 5. The lamp according to claim 4, wherein the first incident surface gradually approaches the center line from a side close to the light source to a side far away from the light source, and the first incident surface The angle difference between the center line and the center line is 0°～10°, the first reflective surface is gradually away from the center line from the side close to the light source to the side far away from the light source, and the first reflection surface The angle difference between the plane and the midline is 10°-20°. 6. The lamp according to claim 4, wherein the first reflective surface is sawtooth-shaped. 7. The lamp according to claim 2, characterized in that, The second light distribution part includes a second incident surface, a second reflective surface and a second outgoing surface, the second incident surface can refract the light emitted by the light source to the second reflective surface, and the second The reflective surface can reflect the received light to the second exit surface, and the second exit surface can refract the received light to the second region. 8. The lamp according to claim 7, wherein the second incident surface gradually approaches the center line from a side close to the light source to a side far away from the light source, and the second incident surface The angle difference between the center line and the center line is 0°～10°, the second reflective surface is gradually away from the center line from the side close to the light source to the side far away from the light source, and the second reflection surface Angle differences between the reflective surface and the center line are respectively 10°-20°. 9. The lamp according to claim 2, characterized in that, The third light distribution part includes a third incident surface and a third exit surface, the third incident surface can refract the light emitted by the light source to the third exit surface, and the third exit surface can refract the light emitted by the light source to the third exit surface. The received light is refracted to the third area. 10. The lamp according to any one of claims 2 to 9, characterized in that, among the rays located on both sides of the center line, the included angle between the rays on the side near the light-emitting surface and the center line is Positive value, the angle between the light on the other side and the center line is a negative value, among the light emitted by the light source, the light rays with the angle between 0° to X° and -X° to 0° from the center line enter In the third light distribution part, light rays with an angle other than X° with the center line enter the first light distribution part, and light rays with an angle other than -X° with the center line enter the second light distribution part. Light distribution department; Wherein, the value of X is 20-30. 11. The lamp according to claim 1, wherein the maximum width of the lens in the direction of the vertical line parallel to the center line is greater than 20 mm. 12. The lamp according to claim 1, wherein the light source assembly comprises two groups of light sources, and the two groups of light sources are distributed symmetrically. 13. The lamp according to claim 12, wherein the two groups of light sources are respectively covered by two lenses. 14. The lamp according to claim 13, wherein the two lenses are formed separately or integrally. 15. The lamp according to claim 1, wherein the lamp body comprises a chassis and a mask connected to the chassis, and the light emitting surface is an outer surface of the mask. 16. The lamp according to claim 15, wherein the chassis includes a bottom wall and a side wall, the mask has only one outer surface, the bottom wall is opposite to the mask, and the side wall is connected to the Describe the bottom wall and mask. 17. The lamp according to claim 15, wherein the mask comprises a top surface and a side surface, the chassis is opposite to the top surface, and the side surfaces connect the top surface and the chassis. 18. The lamp according to claim 15, wherein the lamp is a panel lamp.