CN211780864U

CN211780864U - Lens assembly and illuminating lamp

Info

Publication number: CN211780864U
Application number: CN201922448535.6U
Authority: CN
Inventors: 阮培忠; 任天宝
Original assignee: NVC Lighting Technology Corp
Current assignee: NVC Lighting Technology Corp
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-27
Anticipated expiration: 2029-12-31

Abstract

The application provides a lens assembly, the lens assembly is arranged on a light path of a light source, the lens assembly at least comprises a substrate, a first lens structure and a second lens structure, wherein the first lens structure and the second lens structure are fixed on the substrate; the outer surface of the first lens structure is of a cambered surface structure; the second lens structure is arranged on one horizontal side of the first lens structure relative to the substrate, and protrudes relative to the surface of the substrate to form a ridge structure, and a reflecting surface is formed inside the second lens structure; the second lens structure is used for reflecting emergent light of the light source and enabling the emergent light to penetrate out in the other direction. This application can reduce the emergent luminance of second lens structure one side through the accuse light ability of 2 times lens, reduces the invalid illumination that causes light pollution easily, and the illumination efficiency that can improve illumination lamps and lanterns of concentrating of emergent light.

Description

Lens assembly and illuminating lamp

Technical Field

The application relates to the field of lighting equipment, in particular to a lens assembly and a lighting lamp.

Background

The point light source is widely applied to architectural lighting and municipal works, most of the point light sources are not subjected to any optical light distribution treatment at present, and the point light sources are basically Lambert light distribution of LED light sources, so that the lighting range of the point light sources is large. The larger illumination range brings good illumination effect for some applications, for example, as a street lamp, a larger road surface range can be illuminated.

When the Lambert-type light distribution is installed on the wall surface of a target building as a night scene lamp, illumination can be brought to the target building, and therefore the illumination visual effect when a passerby at a distance observes the target building is enhanced. However, if the lighting efficiency is improved only for the purpose of improving the visual effect of the passerby at a far distance, the lighting efficiency is not high, and light pollution is easily brought to passerby and high positions under the building.

SUMMERY OF THE UTILITY MODEL

The application provides a lens subassembly and illumination lamps and lanterns can improve illumination lamps and lanterns's illuminating efficiency.

The embodiment of the application provides a lens assembly, which is arranged on a light path of a light source and at least comprises a substrate, a first lens structure and a second lens structure, wherein the first lens structure and the second lens structure are fixed on the substrate;

the outer surface of the first lens structure is of a cambered surface structure;

the second lens structure is arranged on one horizontal side of the first lens structure relative to the substrate and protrudes relative to the surface of the substrate to form a ridge structure;

the second lens structure is used for reflecting emergent light of the light source and enabling the emergent light to penetrate out in the other direction.

Optionally, a reflecting surface is formed inside the second lens structure, and a reflecting angle of the reflecting surface faces the first lens structure.

Optionally, a groove is formed in the second lens, and the groove surface of the groove close to one side of the first lens structure forms the reflecting surface.

Optionally, the reflecting surface is of a cambered surface structure.

Optionally, a light homogenizing structure is arranged on the reflecting surface.

Optionally, the first lens structure and the second lens structure are integrally formed.

Optionally, when the first lens structures are multiple, the multiple first lens structures are arranged in the same row, and the second lens structure is arranged on a common side of the multiple first lens structures to form a lens array.

Optionally, the lens assembly has two or more lens arrays, and two of the lens arrays are arranged in parallel relatively.

The application also discloses a lighting fixture, the lighting fixture includes:

a housing;

the light source is arranged in the shell to generate emergent light;

the power supply assembly is arranged in the shell and supplies power to the light source; and

the lens assembly is arranged on the shell and is positioned on a light path of emergent light of the light source;

the lens assembly is the lens assembly as described above, and a substrate in the lens assembly is integrally formed with or fixed on the housing.

Therefore, in the lens assembly and the lighting lamp in the embodiment of the present application, through the cooperation between the first lens structure and the second lens structure, the emergent light of the light source irradiated on the second lens structure is reflected to the first lens structure and penetrates out, so that the emergent brightness on one side of the second lens structure is reduced through the light control capability of the lens for 2 times, the ineffective lighting which is easy to cause light pollution is reduced, and the concentration of the emergent light can improve the lighting efficiency of the lighting lamp.

Drawings

Fig. 1 is a schematic structural diagram of a lens assembly provided in an embodiment of the present application.

Fig. 2 is another schematic structural diagram of a lens assembly provided in an embodiment of the present application.

Fig. 3 is a schematic view of another structure of a lens assembly according to an embodiment of the present application.

Fig. 4 is a schematic optical path diagram of a lens assembly provided in an embodiment of the present application.

Fig. 5 is a schematic view of another structure of a lens assembly according to an embodiment of the present application.

Fig. 6 is an application scenario diagram of a lens assembly provided in an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a lighting fixture provided in the embodiment of the present application.

Detailed Description

The following detailed description of the preferred embodiments of the present application, taken in conjunction with the accompanying drawings, will make the advantages and features of the present application more readily appreciated by those skilled in the art, and thus will more clearly define the scope of the invention.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "head", "tail", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

Referring to fig. 1-2, fig. 1 illustrates a structure of a lens assembly provided by an embodiment of the present application; another structure of a lens assembly provided by the embodiment of the present application is shown in fig. 2;

as shown in fig. 1-2, the lens assembly comprises at least a substrate 1, and a first lens structure 2 and a second lens structure 3 fixed on the substrate 1;

the outer surface of the first lens structure 2 is of a cambered surface structure, and the cambered surface structure can effectively improve the emergent effect of emergent light. The first lens structure 2 is arranged on a light path of emergent light of the light source, and plays a role in controlling the emergent light, so that the light is more uniform, and the lighting efficiency is higher.

The second lens structure 3 is disposed on a horizontal side of the first lens structure 2 opposite to the substrate 1, and forms a convex ridge structure opposite to the surface of the substrate 1, wherein the second lens structure 3 is used for reflecting emergent light of the light source and then penetrating out in another direction.

Specifically, the second lens structure 3 may be adjacent to the first lens structure 2, or may be opposite to the second lens structure 3.

In an embodiment, a reflective surface 32 is formed inside the second lens structure 3, and a reflection angle of the reflective surface 32 faces an emission angle of the first lens structure 2, so that after the emission light enters the second lens structure 3, the second lens structure 3 reflects the emission light to an emission direction of the first lens structure 2 by using the reflective surface 32. The reflecting surface 32 may be provided on a side of the second lens structure 3 away from the first lens structure 2, or may be formed inside the second lens structure 3.

Referring to FIG. 3, a cross-sectional structure of a lens assembly according to an embodiment of the present application is shown.

As shown in the figure, the substrate 1 may be inserted into the housing, or may be integrally formed with the housing, which is not limited in the present application.

In another embodiment, the second lens structure 3 has a groove 31 therein, and the groove surface of the groove 31 near the first lens structure 2 forms a reflective surface 32. When the emergent light from the light source enters the second lens structure 3, the emergent light is reflected by the reflecting surface 32 formed by the groove surface, and the second lens structure 3 in this embodiment can improve the light control effect of the emergent light.

In order to further improve the light control effect of the emergent light, the reflective surface 32 may be a cambered surface structure and is recessed toward the groove 31, so that the emergent light is more concentrated in the emergent direction of the first lens structure 2. Further, the reflecting surface 32 may be provided with a light uniformizing structure, so that the light reflected by the second lens structure 3 is more uniform. The light homogenizing structure can adopt a micro structure which is well known by a person skilled in the art and enables the emergent light to be uniform, and the specific form is not limited.

In one embodiment, the first lens structure 2 and the second lens structure 3 are integrally formed to ensure the light control effect of the lens.

In an embodiment, the first lens structure 2 has an inner portion forming a cavity 21, and one side of the second lens structure 3 forms a cavity wall 22 of the cavity 21, and the cavity wall 22 is inclined toward the cavity 21 relative to the other side of the substrate 1. This configuration allows light directed toward the second lens structure 2 to be better refracted onto the reflective surface 32 to improve the light management effect of the lens.

Referring to fig. 4, a schematic diagram of an optical path of a lens assembly provided in an embodiment of the present application is shown.

In practical applications, referring to fig. 4, it can be schematically shown through the light path (the black line emitted by the light source 4) in the figure that a part of the emergent light emitted from the light source 4 exits through the first lens structure 2, and another part of the emergent light enters the second lens structure 3.

This emergent light that enters this part of second lens structure 3, after it shines the internal reflecting surface 32 of second lens structure 3, then can be reflected and wear out second lens structure 3 towards the emitting direction of first lens structure 2 to realize controlling the emergent light that shines into the direction of second lens structure 3, reduce the emergent light of this direction and make the lighting efficiency of the illumination direction of first lens structure 2 higher, play accuse light effect.

Through above-mentioned lens accuse light mode, can effectively reduce the emergent luminance of second lens structure 3 one side, reduce the invalid illumination that causes light pollution easily to, after the emergent light with this direction reflects the emergent direction of first lens structure 2, can improve the lighting efficiency of this direction, can reduce the energy consumption under the realization same luminance condition, or its luminance is higher under the same energy consumption, the farther technological effect of illumination distance.

In an embodiment, when the first lens structures 2 are multiple, the multiple first lens structures 2 are arranged in the same row, and the second lens structure 3 is disposed on a common side of the multiple first lens structures 2 to form a lens array. In another embodiment, the lens assembly has two or more lens arrays, and two lens arrays are arranged in parallel with the same orientation.

Referring to FIG. 5, a further structure of a lens assembly according to an embodiment of the present application is shown.

As shown in fig. 5, the lens assembly includes two sets of lens arrays. Wherein each lens array comprises 3 first lens structures 2. The 3 first lens structures 2 are arranged in the same row, and the second lens structure 3 is disposed on a common side of the 3 first lens structures 2, so that the first lens structures 2 share one second lens structure 3.

Specifically, the lens array includes a first lens array 10 and a second lens array 20, and the first lens array 10 and the second lens array 10 are oriented in the same direction and are arranged in parallel. In addition, a section 23 is formed between each two first lens structures 2, and the size of the lens array can be reduced by arranging the section 23, and the influence on the illumination effect is small.

In practical application, if the lens assembly is arranged on the outer wall of a building, the second lens structure can be arranged on one side of the top of the first lens structure so as to reduce the intensity of emergent light from a light source to a high place and concentrate the light at the position of a horizontal angle and a downward angle.

Referring to fig. 6, an application scenario of the lens assembly provided in the embodiment of the present application is shown.

As shown in FIG. 6, the light fixture 30 is mounted on the outer wall of a building perpendicular to the horizontal plane, and has the lens assembly as described in the above embodiments mounted therein. When the lighting is turned on, the light emitted from the lighting fixture 30 exits to the front area 40 through the filter assembly, as shown in fig. 6, the filter assembly can reduce the illumination intensity at the upward angle by using the second filter structure, and can also reduce the illumination intensity at the near angle by using the first filter structure (for example, the horizontal distance from the ground to the fixture is H), so as to avoid light pollution to passerby and high places. The emergent light is concentrated on the horizontal angle and the downward angle, so that the illumination efficiency of the angle can be enhanced, and the resource consumption is further reduced.

Referring to fig. 7, a structure of a lighting fixture provided in the embodiment of the present application is shown.

As shown in fig. 7, the light fixture includes a housing 100, a light source 200, a power module 300, and a lens assembly 400.

The material of the housing 100 may be a common lamp housing 100, such as plastic, metal, etc., which is not limited in this application.

The light source 200 is disposed in the housing 100 to generate a light. The light source 200 may be an LED light source 200 or other type of light source 200.

The power supply module 300 is provided in the housing 100 and supplies power to the light source 200. The power supply module 300 may include a rectifying circuit connected to the commercial power, other power control circuits, and other circuits commonly used by those skilled in the art, and the type of the power supply module 300 may be adopted according to the actual situation, without affecting the implementation of the present application.

The lens assembly 400 is disposed on the housing 100 and located on the light path of the light emitted from the light source 200. The lens assembly 400 is the lens assembly 400 shown in any one of the embodiments of fig. 1 to 6, and a substrate of the lens assembly 400 is integrally formed with the housing 100 or fixed on the housing 100.

In some embodiments, the lens assembly 400 can be mounted to the housing 100 via a bayonet structure to achieve fixation. Of course, the fixing manner is not limited in this application.

After the lens assembly 400 is adopted in the lighting lamp, the emergent brightness on one side of the second lens structure is reduced through the light control capability of the lens for 2 times, ineffective lighting which easily causes light pollution is reduced, and the lighting efficiency of the lighting lamp can be improved through the concentration of emergent light.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.

Claims

1. A lens assembly, the said lens assembly is installed in the light path of the light source, characterized by that, the said lens assembly includes the base plate at least, and fix the first lens structure and second lens structure on the said base plate;

the second lens structure is arranged on one horizontal side of the first lens structure relative to the substrate, and protrudes relative to the surface of the substrate to form a ridge structure, and a reflecting surface is formed inside the second lens structure;

2. The lens assembly of claim 1, wherein the second lens has a channel therein, the channel surface of the channel on a side thereof adjacent the first lens structure forming the reflective surface.

3. The lens assembly of claim 2, wherein the reflective surface is a curved surface and is recessed toward the channel.

4. A lens assembly according to any one of claims 1 to 3, wherein the reflecting surface is provided with light homogenizing structures.

5. The lens assembly of claim 1, wherein the first lens structure and the second lens structure are integrally formed.

6. The lens assembly of claim 1, wherein when the first lens structures are plural, the plural first lens structures are arranged in a same row, and the second lens structure is disposed on a common side of the plural first lens structures to form a lens array.

7. The lens assembly of claim 6, wherein said lens assembly has two or more sets of said lens arrays, two of said lens arrays being oriented in the same and relatively parallel arrangement.

8. The lens assembly of claim 6, wherein a tangent plane is formed by the abutment of two of said first lens structures.

9. The lens assembly of claim 1, wherein an interior of the first lens structure forms a cavity, and one side of the second lens structure forms a cavity wall of the cavity, the cavity wall being inclined relative to another side of the substrate in a direction of the cavity.

10. A lighting fixture, the lighting fixture comprising:

a housing;

the light source is arranged in the shell to generate emergent light;

the lens assembly as claimed in any one of claims 1 to 9, wherein the substrate of the lens assembly is integrally formed with or fixed to the housing.