CN212252466U - Lens structure and lamp - Google Patents

Abstract

The utility model relates to a lens structure and lamps and lanterns. The lens structure comprises light condensing components, wherein the light condensing components are distributed above a single light source; the light condensing assembly is used for condensing light rays emitted by the light source; the fly-eye lens system is arranged above the light-gathering component; the fly-eye lens system is used for diffusing the gathered light so as to adjust the illumination intensity in the space to be detected with the rhombic central projection surface. The lens structure is suitable for lamps with single light source. The lens structure and the lamp reduce the number of light sources, reduce the size of the lens structure, reduce the production cost and improve the economic profit on the basis of ensuring the illumination intensity.

Description

Lens structure and lamp

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a lens structure and lamps and lanterns.

Background

With the improvement of semiconductor materials and packaging processes, the luminous flux and the light extraction efficiency of the LED light source are gradually improved, so that the application of the LED light source in the field of automobile illumination becomes possible.

According to the relevant standards, the automobile lighting lamp needs to meet certain illumination intensity in a preset area. Because the LED light source is small in size and single in light emitting directivity, the LED light source is small in lighting area. Meanwhile, light spots formed by the conventional LED lamp are circular light spots, the illumination distribution of the light spots belongs to Lambert body circular distribution, the illumination is strong at the position close to the circle center, the farther the illumination is from the circle center, the weaker the illumination is, the too strong light is caused at the position close to the circle center, and the too dark light is caused at the position far away from the circle center. Therefore, in order to meet the illumination intensity, the number of the LED light sources in the existing automotive lighting fixture is large, which results in a large volume and high production cost of the automotive lighting fixture.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a lens structure and a lamp with small volume and low production cost.

A lens structure, comprising:

the light condensing assemblies are distributed above the single light source; the light condensing assembly is used for condensing light rays emitted by the light source;

the fly-eye lens system is arranged above the light-gathering component; the fly-eye lens system is used for diffusing the gathered light so as to adjust the illumination intensity in the space to be detected with the rhombic central projection surface.

Preferably, in one embodiment, a cross section of the space to be detected at a plane of the fly-eye lens system is a rhombic plane, and the fly-eye lens system includes:

the central compound eye lens assembly is arranged right above the light source and used for diffusing the gathered light rays in the central area of the rhombic surface;

the two long-axis compound eye lens assemblies are arranged on two sides of the central compound eye lens assembly along the long axis of the diamond; the long-axis compound eye lens assembly is used for adjusting the illumination intensity in a long-axis triangular region of the rhombic surface;

the number of the short-axis compound eye lens assemblies is two, and the short-axis compound eye lens assemblies are arranged on two sides of the central compound eye lens assembly along the short axis of the diamond; the short-axis compound eye lens assembly is used for adjusting the illumination intensity in a short-axis triangular area of the rhombic surface.

Preferably, in one of the embodiments, the central fly-eye lens assembly comprises a plurality of central fly-eye lenses; the long-axis fly-eye lens assembly comprises a plurality of long-axis fly-eye lenses, and the light emergent surfaces of the long-axis fly-eye lenses are not parallel to the rhombic surfaces; the short-axis fly-eye lens assembly comprises a plurality of short-axis fly-eye lenses; the light emergent surface of the short-axis fly-eye lens is not parallel to the rhombic surface; the long-axis fly-eye lens and the short-axis fly-eye lens are distributed around the central fly-eye lens.

Preferably, in one embodiment, along a direction away from the central fly-eye lens, an included angle between the long-axis fly-eye lens and the rhombic surface gradually increases, and an included angle between the short-axis fly-eye lens and the rhombic surface gradually increases.

Preferably, in one embodiment, the projection of the central fly-eye lens, the long-axis fly-eye lens and the short-axis fly-eye lens in the plane of the rhombic surface is a square.

Preferably, in one embodiment, the number of the central fly-eye lenses is 24, and the central fly-eye lenses are distributed in a 4 × 6 array; the number of the long-axis fly-eye lenses is 18, and the long-axis fly-eye lenses are distributed according to a 3-by-6 array; the number of the short-axis fly-eye lenses is 2, and the short-axis fly-eye lenses are distributed in a 2 x 1 array.

Preferably, in one embodiment, the light-focusing assembly and the fly-eye lens system are integrally formed.

Preferably, in one embodiment, the material used for the light-focusing assembly and the fly-eye lens system is PMMA or PC.

Preferably, in one embodiment, the lens structure further includes:

a connection member for connecting the light condensing assembly and the fly-eye lens system to a target structure.

A lamp comprises the lens and a light source, wherein the light source is arranged below the lens structure.

Preferably, in one embodiment, the light source is a single LED light source.

The lens structure is suitable for lamps with single light source. On the basis of ensuring the illumination intensity, the number of light sources is reduced, so that the size of the lens structure is reduced, the production cost is reduced, and the economic benefit is improved.

The lamp is simple in structure and simple and convenient to install. The number of light sources in the lamp is single, so that the cost of accessories is reduced, the production cost of the lamp is further reduced, the size and the weight of the lamp are reduced, the lamp can be applied in an environment with a narrow space or poor supporting strength, and the application range of the lamp is expanded.

Various specific structures of the present application, as well as the functions and effects thereof, will be described in further detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a front view of a lens structure according to one embodiment of the present application;

FIG. 2 is a perspective view of a lens structure according to one embodiment of the present application;

FIG. 3 is a bottom view of a lens structure according to one embodiment of the present application;

FIG. 4 is a top view of a lens structure according to one embodiment of the present application;

FIG. 5 is a top view of a lens structure according to one embodiment of the present application;

FIG. 6 is a cross-sectional view taken along section A-A of FIG. 5 illustrating a light source and a central ray path according to one embodiment of the present application;

FIG. 7 is an enlarged view of a portion of FIG. 6 illustrating a light source in accordance with an embodiment of the present application;

FIG. 8 is a cross-sectional view taken along section A-A of FIG. 5 illustrating a light source and an edge ray path according to one embodiment of the present application;

FIG. 9 is an enlarged view of a portion of FIG. 8 illustrating a light source in accordance with an embodiment of the present application;

FIG. 10 is a cross-sectional view taken along section B-B of FIG. 5 illustrating a light source and a central ray path according to one embodiment of the present application;

FIG. 11 is a cross-sectional view of one embodiment of the present application taken along section B-B of FIG. 5, illustrating a light source and an edge ray path.

Wherein, in the reference numeral, 100-the light-gathering component; 110-a light gathering bowl; 120-a collimating lens; 200-a fly-eye lens system; 210-a central fly-eye lens assembly; 211-central fly eye lens; 220-long axis fly's eye lens assembly; 221-long axis fly eye lens; 230-short axis fly-eye lens assembly; 231-short axis fly eye lens; 300-a light source; 310-central ray; 320-edge ray; 400-a connecting member; 410-a first connector; 420-a second connector; 430-a third connection; 500-diamond shaped surface; 510-a central region; 520-major axis triangular region; 530-minor axis triangular region.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood 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 intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The utility model provides a back fog lamp in car lamps and lanterns is applied to lens structure, and according to relevant requirement, the illumination intensity requirement of back fog lamp on the grading screen in the car lamps and lanterns is: the minimum limit of the luminous intensity is 150cd between the vertical V-V line of the reference axis and the upper and lower 5 degrees of the horizontal H-H line, and the minimum limit of the luminous intensity is 75cd in the rest of the rhombic area formed by the reference axis. The utility model provides a lens structure is with the light emission and the refraction of single LED light source to satisfy predetermined illumination intensity demand in the rhombus region that forms and satisfy the grading screen.

As shown in fig. 5, a cross section of the space to be detected on the plane of the fly-eye lens system 200 is a rhombic surface 500, and specifically, the rhombic surface 500 includes a central area 510 located at a middle position, long-axis triangular areas 520 located at both ends of the middle position in the long-axis direction, and short-axis triangular areas 530 located at both ends of the middle position in the short-axis direction. It is understood that the central area 510, the long axis triangular area 520 and the short axis triangular area 530 together form the diamond-shaped surface 500, and the positions and sizes of the central area 510, the long axis triangular area 520 and the short axis triangular area 530 can be flexibly adjusted, which is not limited in this application. It can be understood that the rhombic surfaces 500 are distributed in parallel with the light distribution screen.

As shown in fig. 1 and fig. 2, the present invention provides a lens structure, which includes a light focusing assembly 100 and a fly-eye lens system 200. The light condensing assembly 100 is disposed above the single light source 300, the fly-eye lens system 200 is disposed right above the single light source 300, and the light condensing assembly 100 is used for gathering the light emitted from the light source 300 to the lower side of the fly-eye lens system 200, so as to improve the light condensing effectThe effective utilization rate of the light emitted by the light source 300, i.e. the illumination intensity transmitted by the lens structure, is increased. Wherein, the light source is a single LED light source, and the fly-eye lens system 200 is disposed above the light focusing assembly 100. The fly-eye lens system 200 is configured to diffuse the collected light of the light collecting assembly 100 to adjust the illumination intensity in the space to be detected (not shown) with a diamond-shaped central projection plane, so that the illumination intensity in the space to be detected meets a preset requirement. Specifically, the illumination intensity in the space to be detected with the rhombic central projection surface meets the preset requirement, the illumination intensity can be between 10 degrees on the left and right of a vertical V-V line and 5 degrees on and below a horizontal H-H line in a reference axis on a light distribution screen, the minimum limit value of the illumination intensity is 150cd, the illumination intensity of the rest part in the rhombic surface formed by the reference axis is 75cd, and the surface viewed in the observation direction of the reference axis is not more than 140cm². The fly-eye lens system 200 forms a diamond-shaped light spot on the light distribution screen, wherein the illumination intensity of the diamond-shaped light spot meets the preset requirement.

In one preferred embodiment, as can be seen from fig. 5 to 11, the light focusing assembly 100 includes a light focusing bowl 110 and a collimating lens 120. The light-gathering bowl 110 is disposed above the light source 300, and the collimating lens 120 is disposed inside the light-gathering bowl 110. The light emitted from the LED light source is emitted, and the light includes a central light ray 310 passing through the collimating lens 120 and an edge light ray 320 located around the central light ray 310, and further, the edge light ray 320 includes a long axis light ray (not labeled) located on the long axis of the rhombic surface and a short axis light ray (not labeled) located on the short axis of the rhombic surface. Specifically, the collimating lens 120 is used to refract the central ray 310 of the emission shape into a ray parallel to the axis of the light gathering bowl 110. By reflection and refraction of the light gathering bowl 110, the edge light 320 is converted into a light ray in the space to be detected where the fly eye lens system 200 is located. Since the light collecting bowl 110 and the collimating lens 120 are of a revolving structure, that is, the cross sections of the light collecting bowl 110 and the collimating lens 120 along the long axis direction are the same as the cross sections of the light collecting bowl 110 and the collimating lens 120 along the short axis direction, the transmission principles of the light rays in the light collecting bowl 110 and the collimating lens 120 in the short axis direction are the same, the transmission routes are similar, and details are not described herein.

In one preferred embodiment, as shown in fig. 2, 4 and 5, the projection of the lens unit of the fly-eye lens system 200 on the light distribution screen is square.

In one embodiment, as shown in fig. 8, 9 and 11, the light concentrating bowl 110 converts the edge light rays 320 into light rays falling within the central area 510, the long axis triangular area 520 and the short axis triangular area 530.

In one preferred embodiment, the light focusing bowl 110 is a parabolic light focusing bowl, and the generatrix equation of the parabolic light focusing bowl is y²4fx, where f is the focal length of the parabolic light gathering bowl.

In one preferred embodiment, the LED light source is arranged at the focus of the parabolic light gathering bowl.

In one specific embodiment, the lens structure has dimensions of 40mm 17 mm.

In one preferred embodiment, the light gathering bowl 110 has a 2-3 layer structure, and gathers and pre-diffuses the light emitted from the light source 300 to improve the light diffusion effect of the lens structure.

The lens structure is suitable for lamps with single light source. On the basis of ensuring the illumination intensity, the number of light sources is reduced, the volume of the lens structure is reduced, the production cost is reduced, and the economic benefit is improved.

In one embodiment, as shown in fig. 2 and 5, the cross section of the space to be detected at the plane of the fly-eye lens system 200 is a rhombic surface 500, and the rhombic surface 500 comprises a central area 510, two long-axis triangular areas 520 and two short-axis triangular areas 530. Along the long axis direction of the diamond, long axis triangular regions 520 are located on both sides of the central region 510; along the minor axis of the diamond, minor axis triangular regions 530 flank the central region 510. Fly-eye lens system 200 includes a central fly-eye lens assembly 210, a long-axis fly-eye lens assembly 220, and a short-axis fly-eye lens assembly 230. The central fly eye lens assembly 210 is disposed directly above the light source 300 and is used to diffuse the gathered light in the central area 510 of the diamond surface. The number of the long-axis fly-eye lens assemblies 220 is two, and the long-axis fly-eye lens assemblies are arranged on two sides of the central fly-eye lens assembly 210 along the long axis of the diamond. The long-axis fly-eye lens assembly 220 is used for adjusting the illumination intensity in a long-axis triangular area of the rhombic surface. The number of the short-axis fly-eye lens assemblies 230 is two, and the short-axis fly-eye lens assemblies are arranged on two sides of the central fly-eye lens assembly 210 along the short axis of the diamond. The short-axis fly-eye lens assembly 230 is used to adjust the intensity of the light within the short-axis triangular region of the rhomboid.

In one preferred embodiment, central fly's eye lens assembly 210 diffuses light rays in central region 510 by refraction. The long-axis fly-eye lens assembly 220 and the short-axis fly-eye lens assembly 230 adjust the light distribution of the long-axis triangular region and the short-axis triangular region by refraction, specifically, the dense light close to the central region 510 is diffused outwards and is diffused outwards, so that the light which cannot fall on the light distribution screen is diffused inwards, and the effective utilization rate of the light emitted by the LED light source is increased.

Above-mentioned lens structure through special compound eye lens structure, has weakened the Lambert body circular distribution of illumination intensity in the LED light source, the reasonable conversion direction of the light that the LED light source that gathers together the spotlight component sent to the facula adjustment that forms on the grading screen is required rhombus, and simple structure need not additionally to increase the power of LED light source, has improved the effective utilization ratio of the energy.

In one embodiment, as can be seen from fig. 2 to 11, the central fly-eye lens assembly 210 comprises a plurality of central fly-eye lenses 211. Long-axis fly-eye lens assembly 220 includes a plurality of long-axis fly-eye lenses 221 and short-axis fly-eye lens assembly 230 includes a plurality of short-axis fly-eye lenses 231. Wherein, the light-emitting surface (not labeled) of the long axis fly eye lens 221 is not parallel to the diamond surface, and the light-emitting surface (not labeled) of the short axis fly eye lens 231 is not parallel to the diamond surface. The long-axis fly-eye lens 221 and the short-axis fly-eye lens 231 are distributed around the central fly-eye lens 211.

In one embodiment, the light exit surface of the long-axis fly-eye lens 221 and the light exit surface of the short-axis fly-eye lens 231 are planar or curved.

In order to further scatter the light to obtain a uniform distribution of light, in one preferred embodiment, the light exit surface of the long-axis fly-eye lens 221 and the light exit surface of the short-axis fly-eye lens 231 are curved surfaces.

In one specific embodiment, the central fly-eye lens 211 is distributed along a horizontal plane in the plane of the diamond surface 500, and the long-axis fly-eye lens 221 and the short-axis fly-eye lens 231 are distributed around the central fly-eye lens 211 along the horizontal plane in the plane of the diamond surface 500.

In order to avoid the refraction and reflection of the unwanted lens to the light and reduce the propagation of the unwanted light, in a preferred embodiment, the long-axis fly-eye lens 221 and the short-axis fly-eye lens 231 have a vertical side (not labeled) disposed vertically near the central fly-eye lens 211, and a side away from the central fly-eye lens 211 is a tilted side (not labeled) disposed obliquely downward, wherein the tilted side is a light exit surface, and the lens structure only adjusts the direction of the light through the tilted side, thereby avoiding the interference with the propagation of the light.

In one preferred embodiment, the corner edge formed between the vertical side and the inclined side is relatively sharp. Specifically, the chamfer between the vertical side and the inclined side does not exceed R0.1mm.

According to the lens structure, the propagation direction of light rays is adjusted in a small unit in a partitioned mode through the central fly eye lens, the long-axis fly eye lens and the short-axis fly eye lens, the adjustment precision of the light rays is improved, and the uniformity of the adjusted light rays is improved.

In one embodiment, as shown in fig. 2, 7 to 10, along the direction away from the central fly-eye lens 211, the angle between the long-axis fly-eye lens 221 and the rhombic surface 500 gradually increases, and the angle between the short-axis fly-eye lens 231 and the rhombic surface 500 gradually increases.

Since the light gathered by the light gathering assembly 100 is dense in the central region 510 and loose in the long-axis triangular region, and the light is gradually sparse in the long-axis triangular region along the direction far from the central region 510, in order to ensure the uniformity of the refracted light, in one preferred embodiment, the inclination angle of the long-axis fly-eye lens 221 with respect to the rhombic surface 500 is gradually reduced along the direction along which the long axis approaches the central fly-eye lens 211. That is, along the direction from the short axis to the central area 510, the inclination angle of the long-axis fly-eye lens 221 with respect to the rhombic surface 500 gradually increases, so as to increase the adjustment range of the long-axis fly-eye lens 221 to the light, so that all the light in the long-axis triangular area can meet the requirement of the preset illumination intensity.

Since the light gathered by the light gathering assembly 100 is dense in the central area 510 and loose in the minor-axis triangular area, and the light is gradually sparse in the minor-axis triangular area along the direction far from the central area 510, in order to ensure the uniformity of the refracted light, in one preferred embodiment, the inclination angle of the minor-axis fly-eye lens 231 with respect to the rhombic surface 500 is gradually reduced along the minor axis toward the direction in which the central fly-eye lens 211 approaches. That is, along the direction from the short axis to the direction far from the central region 510, the inclination angle of the long-axis fly-eye lens 221 with respect to the rhombic surface 500 gradually increases, so as to increase the adjustment range of the long-axis fly-eye lens 221 to the light, so that all the light in the long-axis triangular region can meet the requirement of the preset illumination intensity.

According to the lens structure, through the design of the included angles between the long-axis fly-eye lens and the short-axis fly-eye lens and the rhombic surface, the reasonable layout of the adjustment range is realized, the installation range of the light source is enlarged, and the installation difficulty of the light source is reduced.

In order to simplify the partitioning of the rhombic surface 500 and reduce the design difficulty of the number and distribution positions of the central fly-eye lens assembly 210, the long-axis fly-eye lens assembly 220 and the short-axis fly-eye lens assembly 230 in the fly-eye lens system 200, in one embodiment, as shown in fig. 2, 4, 5 and 10, the projections of the central fly-eye lens 211, the long-axis fly-eye lens 221 and the short-axis fly-eye lens 231 on the plane of the rhombic surface 500 are square.

In another preferred embodiment, the projections of the central fly-eye lens 211, the long-axis fly-eye lens 221 and the short-axis fly-eye lens 231 along the axial direction of the light focusing assembly 100 are circular, pentagonal, hexagonal or triangular.

In one embodiment, as shown in fig. 2, 5, 7 and 10, the number of the central fly-eye lenses 211 in the central fly-eye lens assembly 210 is 24, and the number of the long-axis fly-eye lenses 221 in the long-axis fly-eye lens assembly 220 is 18, and the long-axis fly-eye lenses are distributed in a 3 × 6 array. The short-axis fly-eye lenses 231 of the short-axis fly-eye lens assembly 230 are 2 in number and are distributed in a 2 x 1 array. Where m x n refers to m columns and n rows.

In another embodiment, the number of central fly-eye lenses 211 in the central fly-eye lens assembly 210 is 24 and is distributed in a 4 x 6 array. The number of the long-axis fly-eye lenses 221 of the long-axis fly-eye lens assembly 220 is 12, and is distributed in a 3 × 4 array. The short-axis fly-eye lenses 231 of the short-axis fly-eye lens assembly 230 are 2 in number and are distributed in a 2 x 1 array.

In another preferred embodiment, the number of central fly-eye lenses 211 in the central fly-eye lens assembly 210 is 24 and is distributed in a 6 x 4 array. The number of long-axis fly-eye lenses 221 of the long-axis fly-eye lens assembly is 4 and is distributed in a 2 x 2 array. The number of short-axis fly-eye lenses 231 of the short-axis fly-eye lens assembly 230 is 12 and is distributed in a 6 x 2 array.

It can be understood that the number and the distribution mode of the central fly-eye lens, the long-axis fly-eye lens and the short-axis fly-eye lens are not specifically limited in the present application, and any number and distribution mode of the central fly-eye lens, the long-axis fly-eye lens and the short-axis fly-eye lens that can meet the preset illumination intensity requirement are within the protection scope of the present application.

Above-mentioned lens structure, reasonable layout center fly-eye lens subassembly, long axis fly-eye lens subassembly and minor axis fly-eye lens subassembly, under the condition that satisfies the illumination intensity demand, reduce the long axis fly-eye lens subassembly as far as possible and the shared area of minor axis fly-eye lens subassembly, reduce the production degree of difficulty, improve the production efficiency of lens structure, improve the qualification rate of lens structure product simultaneously.

In order to improve the light propagation in the light condensing assembly 100 and the fly-eye lens system 200, the influence of the interface between the light condensing assembly 100 and the fly-eye lens system 200 on the light propagation is avoided. In one embodiment, light focusing assembly 100 and fly-eye lens system 200 are integrally formed. The lens structure is integrally formed, so that an interface between the light condensing assembly 100 and the fly-eye lens system 200 is eliminated, the influence on a light propagation path is reduced, and the accuracy of light propagation along a preset path is improved.

In another embodiment, the light collecting assembly 100 and the fly-eye lens system 200 are formed separately, and the formed light collecting assembly 100 and the fly-eye lens system 200 are adhered together by an adhesive.

In order to ensure the light transmittance of the fly-eye lens system 200 and realize the integral molding of the light collecting assembly 100 and the fly-eye lens system 200, in one embodiment, the material used for the light collecting assembly 100 and the fly-eye lens system 200 is PMMA or PC. Specifically, the material used for the light-focusing assembly 100 and the fly-eye lens system 200 is PMMA-8N.

In one embodiment, the light-focusing assembly 100 and the fly-eye lens system 200 are injection molded from PMMA or PC. Specifically, the light-focusing assembly 100 and the fly-eye lens system 200 are formed by injection molding of PMMA-8N.

In another embodiment, the light-focusing assembly 100 and the fly-eye lens system 200 may be formed by injection molding of any other transparent material, and the application is not limited thereto.

In one embodiment, the light focusing assembly 100 and the fly-eye lens system 200 are clear or light pink in color.

In one embodiment, as shown in fig. 1 to 3, the lens structure further includes a connection member 400. Wherein, the connection member 400 is used for connecting the light condensing assembly 100 and the fly-eye lens system 200 to a target structure.

In order to achieve the adjustment of the installation angle and the stable connection, in one preferred embodiment, the connection member 400 includes a first connection member 410, a second connection member 420, and a third connection member 430. The first connecting element 410, the second connecting element 420 and the third connecting element 430 are distributed at the lower part of the fly-eye lens system 200, and the three are not located on the same straight line.

In one preferred embodiment, the light-focusing assembly 100, the fly-eye lens system 200 and the connecting member 400 are integrally formed.

In one embodiment, the lens structure can also be used for a front fog lamp on an automobile.

A lamp, as shown in fig. 6 to 9, includes any one of the lens structures and a light source 300. The number of the light sources 300 is single, and the light sources are arranged right below the lens structure. Specifically, the light source 300 is disposed directly below the light focusing assembly 100 in the lens structure.

The lamp is simple in structure and simple and convenient to install. The number of light sources in the lamp is single, so that the cost of accessories is reduced, the production cost of the lamp is further reduced, the size and the weight of the lamp are reduced, the lamp can be applied in an environment with a narrow space or poor supporting strength, and the application range of the lamp is expanded.

In one embodiment, the light source in the lamp is a single LED light source.

According to the lamp, the LED light source has the advantages of high response speed, high luminous flux, good light emitting efficiency and good packaging process, and the service performance and the stability of the lamp are improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (11)

1. A lens structure, comprising:

the light condensing assemblies are distributed above the single light source; the light condensing assembly is used for condensing light rays emitted by the light source;

the fly-eye lens system is arranged above the light-gathering component; the fly-eye lens system is used for diffusing the gathered light so as to adjust the illumination intensity in the space to be detected with the rhombic central projection surface.

2. The lens structure according to claim 1, wherein a cross section of the space to be inspected at a plane of the fly-eye lens system is a rhombic surface, and the fly-eye lens system comprises:

the central compound eye lens assembly is arranged right above the light source and used for diffusing the gathered light rays in the central area of the rhombic surface;

the two long-axis compound eye lens assemblies are arranged on two sides of the central compound eye lens assembly along the long axis of the diamond; the long-axis compound eye lens assembly is used for adjusting the illumination intensity in a long-axis triangular region of the rhombic surface;

the number of the short-axis compound eye lens assemblies is two, and the short-axis compound eye lens assemblies are arranged on two sides of the central compound eye lens assembly along the short axis of the diamond; the short-axis compound eye lens assembly is used for adjusting the illumination intensity in a short-axis triangular area of the rhombic surface.

3. The lens arrangement of claim 2, wherein the central fly-eye lens assembly comprises a plurality of central fly-eye lenses; the long-axis fly-eye lens assembly comprises a plurality of long-axis fly-eye lenses, and the light emergent surfaces of the long-axis fly-eye lenses are not parallel to the rhombic surfaces; the short-axis fly-eye lens assembly comprises a plurality of short-axis fly-eye lenses; the light emergent surface of the short-axis fly-eye lens is not parallel to the rhombic surface; the long-axis fly-eye lens and the short-axis fly-eye lens are distributed around the central fly-eye lens.

4. A lens arrangement according to claim 3, wherein the angle between the long-axis fly-eye lens and the rhomboid surface increases progressively and the angle between the short-axis fly-eye lens and the rhomboid surface increases progressively in a direction away from the central fly-eye lens.

5. The lens structure of claim 3, wherein the projection of the central fly-eye lens, the long-axis fly-eye lens and the short-axis fly-eye lens in the plane of the rhomboid is a square.

6. A lens structure according to claim 3, wherein the central fly eye lenses are 24 in number and are distributed in a 4 x 6 array; the number of the long-axis fly-eye lenses is 18, and the long-axis fly-eye lenses are distributed according to a 3-by-6 array; the number of the short-axis fly-eye lenses is 2, and the short-axis fly-eye lenses are distributed in a 2 x 1 array.

7. The lens structure of claim 1, wherein the light focusing assembly is an integral part of the fly-eye lens system.

8. The lens structure of claim 1, wherein the material used for the light-focusing assembly and the fly-eye lens system is PMMA or PC.

9. The lens structure of claim 1, further comprising:

a connection member for connecting the light condensing assembly and the fly-eye lens system to a target structure.

10. A luminaire comprising the lens structure of any one of claims 1 to 9 and a light source, wherein the light source is disposed below the lens structure.

11. The luminaire of claim 10 wherein the light source is a single LED light source.

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