阅读说明：本技术 一种透镜组件和照明装置 (Lens subassembly and lighting device ) 是由 高丰 郭金明 李京蔓 刘超博 刘动 卫庆军 于 2021-08-12 设计创作，主要内容包括：本申请实施例公开了一种透镜组件和照明装置,包括：第一透镜模块,所述第一透镜模块包括若干第一透镜组；第二透镜模块,所述第二透镜模块包括若干第二透镜组；其中,所述第一透镜模块和所述第二透镜模块并列且对称设置；透镜组件通过共面且呈夹角的组合限定第一透镜模块和第二透镜模块的相对位置,使第一透镜组的光斑和第二透镜组的光斑能够朝向不同的方向投射；实现单侧安装的灯具在中心布灯场景下的应用,不同布灯方式下灯具的通用和转换,提高了透镜组件的利用率。(The embodiment of the application discloses lens subassembly and lighting device includes: a first lens module including a plurality of first lens groups; a second lens module including a plurality of second lens groups; the first lens module and the second lens module are arranged in parallel and symmetrically; the lens assembly limits the relative positions of the first lens module and the second lens module through the combination of coplanarity and included angle, so that the light spots of the first lens assembly and the second lens assembly can be projected towards different directions; the application of the lamp installed on one side in a central lamp arrangement scene is realized, the lamp is universal and switched in different lamp arrangement modes, and the utilization rate of the lens component is improved.)

1. A lens assembly, comprising:

a first lens module including a plurality of first lens groups; and

a second lens module including a plurality of second lens groups;

the first lens module and the second lens module are arranged in parallel and symmetrically.

2. A lens assembly according to claim 1, wherein the optical axes of said first and second lens modules are each offset with respect to the normal of the road surface.

3. A lens assembly according to claim 2, characterised by defining:

an included angle between an optical axis of the first lens group and the road surface normal line is a first deflection angle alpha, and the angle of the first deflection angle alpha is as follows: alpha is more than 0 degree and less than or equal to 100 degrees;

an included angle between the optical axis of the second lens group and the road surface normal line is a second deflection angle β, and the angle of the second deflection angle β is as follows: beta is more than 0 degree and less than or equal to 100 degrees.

4. A lens assembly according to any one of claims 1-3, wherein the central axis of said first lens module and the central axis of said second lens module enclose an angle of 180 °.

5. A lens assembly according to any one of claims 1 to 3, wherein the plane of the first lens module is co-planar with the plane of the second lens module.

6. A lens assembly according to any one of claims 1 to 3, wherein said first lens group and said second lens group each comprise a plurality of lenses, each of said lenses being of the same construction and being disposed in opposing relationship along either side of a centre line.

7. A lens assembly according to any one of claims 1 to 3, wherein said first lens module comprises a plurality of said first lens groups, said first lens groups being arranged in an array;

the second lens module comprises a plurality of second lens groups which are arranged in an array.

8. The lens assembly of claim 5, wherein the projected shape of the spot of the lens is at least one of circular, elliptical, or rectangular.

9. An illumination device, comprising a housing, a light source, and the lens assembly according to any one of claims 1 to 8, wherein the first lens group and the second lens group are disposed corresponding to the light source; the first lens module and the second lens module are detachably connected with the shell.

10. The lighting device of claim 9, further comprising a cover removably attached to the housing, the cover covering an exterior of the first lens module and the second lens module.

Technical Field

The present application relates to the field of road lighting installations, in particular to a lens assembly and a lighting device.

Background

The lamps used for illumination in the existing tunnels and other roads can adopt different illumination modes such as lamp arrangement at two sides or lamp arrangement at the center. When the lighting mode of both sides cloth lamp is adopted, in order to improve the utilization ratio of light, project more faculas on the road surface, lamps and lanterns can be with light to a direction polarisation. However, in the central lighting mode, the luminances of the two sides of the lamp are not consistent when the lamp works, so that one side of the road is not sufficiently lighted.

In the research and practice process of the prior art, the inventor of the application finds that when the road lamp adopts different lamp arrangement modes, the design and processing of the lamp have great difference, and the universality and the conversion cannot be realized.

Disclosure of Invention

The embodiment of the application provides a lens subassembly and lighting device, can utilize the lamps and lanterns of polarisation to realize both sides grading, realizes the commonality and the conversion of lamps and lanterns under the different lamp arrangement modes.

The embodiment of the application provides a lens assembly, which comprises a first lens module and a second lens module, wherein the first lens module comprises a plurality of first lens groups; the second lens module comprises a plurality of second lens groups;

the first lens module and the second lens module are arranged in parallel and symmetrically.

Optionally, defining:

an included angle between an optical axis of the first lens group and the road surface normal line is a first deflection angle alpha, and the angle of the first deflection angle alpha is as follows: alpha is more than 0 degree and less than or equal to 100 degrees;

an included angle between the optical axis of the second lens group and the road surface normal line is a second deflection angle β, and the angle of the second deflection angle β is as follows: beta is more than 0 degree and less than or equal to 100 degrees.

Optionally, an included angle between a central axis of the first lens module and a central axis of the second lens module is 180 °.

Optionally, a plane on which the surface of the first lens module is located and a plane on which the surface of the second lens module is located are coplanar.

Optionally, the plane of the first lens module is coplanar with the plane of the second lens module.

Optionally, the first lens group and the second lens group each include a plurality of lenses, and each of the lenses has the same structure and is disposed oppositely along two sides of the center line.

Optionally, the first lens module includes a plurality of the first lens groups, and all the first lens groups are arranged along a linear array;

the second lens module includes a plurality of the second lens groups, all of the second lens groups being disposed along a linear array.

Optionally, the projected shape of the light spot of the lens is at least one of a circle, an ellipse or a rectangle.

Correspondingly, the embodiment of the present application further provides an illumination device comprising the lens assembly, further comprising a housing and a light source, wherein the first lens assembly and the second lens assembly are both arranged corresponding to the light source, and the first lens module and the second lens module are both detachably connected to the housing.

Optionally, the lighting device further comprises a transparent cover detachably attached to the housing, the cover covering an exterior of the first lens module and the second lens module.

In the lens assembly in this embodiment, the relative positions of the first lens module and the second lens module are defined by symmetrical and parallel arrangement positions, and when the first lens module and the second lens module are symmetrically arranged, light spots of the first lens module and light spots of the second lens module can project towards different directions and cover the whole width direction of a road; therefore, the lamp installed on one side is applied to a central lamp arrangement scene through the combination of the first lens module and the second lens module, the universality and conversion of the lamp in different lamp arrangement modes are realized, and the utilization rate of the lens assembly is improved;

after the first lens group and the second lens group which are applied to one-side lamp arrangement are combined, light distribution can be carried out towards two sides, the lighting requirement of the central lamp arrangement is met, and the research and development and manufacturing costs of the tunnel and other road lamp arrangements are reduced; meanwhile, the illumination of the road is realized in a central light distribution mode, the cost and the installation time are reduced, and the installation efficiency is improved.

Drawings

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

FIG. 1 is a partially schematic view of a lighting device according to a preferred embodiment of the present invention;

FIG. 2 is an exploded schematic view of a lighting device consistent with a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a lens assembly in accordance with a preferred embodiment of the present invention;

FIG. 4a is a light distribution curve of a first lens group and a second lens group according to a preferred embodiment of the present invention;

FIG. 4b is a light path diagram of the light distribution angle directions of the first lens group and the second lens group according to the preferred embodiment of the present invention;

FIG. 4c is a light path diagram of the light distribution declination directions of the first lens group and the second lens group according to the preferred embodiment of the present invention;

FIG. 5 is a schematic view of an illumination area in the prior art;

FIG. 6 is a schematic view of the illumination area of a lens assembly in accordance with a preferred embodiment of the present invention;

FIG. 7 is a schematic view of the illumination of a first lens module and a second lens module in a lens assembly in accordance with a preferred embodiment of the present invention.

Description of reference numerals:

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.

The embodiment of the application provides a lens assembly and an illuminating device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

Example one

The first embodiment of the application provides a lighting device, specifically is a road lighting apparatus, and it can realize both sides grading simultaneously through the combination with the lamps and lanterns that are applied to in the road both sides cloth lamp, therefore the lighting device in this application can be applied to road lighting such as tunnels that need central cloth lamp. As shown in fig. 1-7, the lighting device includes a housing 300, a light source (not shown), and a lens assembly, wherein the lens assembly and the light source are correspondingly disposed to deflect light rays of the light source to different directions. After the lighting device is installed in a central lamp arrangement mode, the lens assembly can be used for achieving light distribution on two sides of a road, and therefore the lighting requirement of the road is met. In order to improve the illumination effect, the light source and the lens assembly are more adaptive, and therefore the light source is preferably an LED.

The lens assembly comprises a first lens module 100 and a second lens module 200, wherein the first lens module 100 comprises a plurality of first lens groups 110, and meanwhile, the area projected by the first lens module 100 on a road is marked as a first light spot; the second lens module 200 includes a plurality of second lens groups 210, and a projection area of the second lens module 200 on the road surface is denoted as a second light spot. The first lens group 110 and the second lens group 210 are both hyperboloid lenses, and when a light distribution angle is designed according to a distance between lamp posts, referring to fig. 4a and 4b, light emitted by led is subjected to a first diffusion angle through a first curved surface and a second diffusion angle through a second curved surface, so that an led lambertian light distribution incident angle (120 °) of an initial light source is changed into a larger-angle light distribution. When designing the deflection angle of the light distribution according to the width of the road surface, referring to fig. 4a and 4c, the light emitted from the light source passes through the first curved surface and the second surface to form a polarized light diffused light distribution.

The first lens module 100 and the second lens module 200 are arranged in parallel and symmetrically, and light spots of the first lens group 110 and light spots of the second lens group 210 can be projected towards different directions and cover the whole width direction of a road; therefore, through the combination of the first lens module 100 and the second lens module 200, the two-side polarization of the lens assembly can be realized, so that the lighting device which can only be applied to the side edge lighting is arranged above the middle part of the road, and the central lighting of the road is realized. The first lens module 100 and the second lens module 200 can realize one-side lighting of a road when used independently, and central lighting of the road can be realized after the first lens module 100 and the second lens module 200 are combined, so that interchange and universality between lamps installed in two lighting modes in road lighting can be realized, the use scene and the utilization rate of the lighting device can be improved, and the installation cost is reduced. Compared with the lens specially used for central lamp arrangement designed according to factors such as the height of a tunnel, the width of a road and the like, the lens realizes two-side polarization by combining the first lens module 100 and the second lens module 200, and the design and manufacturing cost is reduced.

In addition, the first lens module 100 and the second lens module 200 are symmetrically arranged, and the first lens module 100 and the second lens module 200 which are symmetrically arranged can further accurately install positions and improve installation accuracy. Simultaneously can make first facula and the symmetrical setting of second facula of throwing on the road for light distribution on the road is more even, makes the environment of driving the road optimize more, has reduced the tired influence to driver's eyes.

In a further refinement, the optical axes of the first lens module 100 and the second lens module 200 are both arranged offset with respect to the road surface normal Z. Therefore, after the first lens group 110 and the second lens group 210 are combined, the first light spot and the second light spot face different directions, and can completely cover the road surface along the width direction, so that the road lighting requirement is met.

In a further refinement, the following are defined: an included angle between the optical axis of the first lens group 110 and the road surface normal Z is a first deflection angle α, and the angle of the first deflection angle α is as follows: alpha is more than 0 degree and less than or equal to 100 degrees; the included angle between the optical axis of the second lens group and the road surface normal Z is a second deflection angle beta, and the angle of the second deflection angle beta is as follows: beta is more than 0 degree and less than or equal to 100 degrees. The combination of the first deflection angle and the second deflection angle can realize the full coverage of the illumination area to the road width, thereby meeting the road illumination requirement.

In a further improved scheme, an included angle between a central axis of the first lens module and a central axis of the second lens module is 180 °, the central axis of the first lens module 100 is denoted as a first central axis 120, the central axis of the second lens module 200 is denoted as a second central axis 220, and an included angle between the first central axis 120 and the second central axis 220 is denoted as an angle a. The angle between the central axis of the first lens module 100 and the central axis of the second lens module 200 is 180 °, i.e. the angle a between the first central axis 120 and the second central axis 220 is 180 degrees. Therefore, the first light spot and the second light spot can be completely covered along the width direction of the road after the first lens module 100 and the second lens module 200 are combined.

In a further improved scheme, the plane of the first lens module 100 and the plane of the second lens module 200 are arranged in a coplanar manner, so that the mounting accuracy of the first lens module 100 and the second lens module 200 can be increased.

Example two

Compared with the first embodiment, this embodiment includes all the technical features of the first embodiment, and further includes a feature that an included angle between the central axis 120 of the first lens module 100 and the central axis 220 of the second lens module 200 is 180 °, that is, an angle a between the first central axis 120 and the second central axis 220 is 180 °. First facula and second facula all mainly cover on the road, and it not only can strengthen road lighting's luminance, has improved the utilization ratio of light simultaneously. In addition, the plane of the surface of the first lens module 100 and the plane of the surface of the second lens module 100 are coplanar, and the angle a between the first central axis 120 and the second central axis 220 is 180 °, so that the installation positions of the first lens module 100 and the second lens module 200 can be conveniently determined, the difficulty in assembly is reduced, and the assembly precision and efficiency are improved.

EXAMPLE III

The present embodiment includes all the technical features of the second embodiment, which further includes the following technical features that the first lens group 110 and the second lens group 210 are the same, so that the brightness and the range of the first light spot and the second light spot are consistent; when the first lens module 100 and the second lens module 200 are combined, the degree of the included angle can be conveniently determined according to the coverage area and the brightness of the light spot, and therefore, the relative position of the first lens module 100 and the second lens module 200 can be conveniently determined. Meanwhile, the first lens group 110 and the second lens group 210 both include a plurality of lenses, each lens has the same structure and is oppositely arranged along two sides of the center line 600, and the center line in the present application is a symmetry line between the first lens group 110 and the second lens group 210. Since the first lens group 110 and the second lens group 210 are both street lamp lenses, the first lens group 110 and the second lens group 210 are street lamp lenses of the same specification in the production and assembly processes, and thus the production and assembly efficiency can be improved.

In another preferred embodiment, if the angle a between the first central axis 120 and the second central axis 220 is 180 ° and the first lens group 110 and the second lens group 210 are the same, the light distribution in the direction of the lighting device C90-C270 is combined into a central symmetric light distribution from a single polarized light distribution, so that the lighting device is suitable for tunnel central ceiling type lighting; and the light of road surface along its width direction all distributes comparatively evenly, has further optimized driving environment.

Example four

The present embodiment includes all the technical features of the first embodiment, and further includes the following technical features that when the first lens module 100 includes a plurality of first lens groups 110, all the first lens groups 110 are arranged in a linear array. By combining the plurality of first lens groups 110, the range of the lighting device on the road and the brightness of the lighting can be increased, and the road lighting effect can be further improved. Meanwhile, all the first lens groups 110 are limited to be arranged along a straight line, so that the illumination device can be ensured to mainly irradiate along the width direction of a road, and irradiation light spots are limited and gathered in a certain range to ensure the road illumination effect; and meanwhile, the mounting position of the first lens group 110 is convenient to limit, and the precision in assembly is improved.

When the lens assembly and the housing 300 are assembled, all the first lens groups 110 are connected to the housing 300 through the first lens module 100, and all the first lens groups 110 are linearly arrayed on the first lens module 100. All the first lens groups 110 are pre-installed on the first lens module 100, and then the first lens module 100 is relatively fixed with the housing 300 through various modes such as fastening screws or cementing, so that the installation difficulty is reduced, and the installation efficiency is improved. The assembly of the plurality of first lens groups 110 and the housing 300 is achieved by the first lens module 100, and the mounting accuracy of the first lens group 110 can be substantially determined by monitoring the position and fixing state of the first lens group 110 mounted on the first lens module 100; not only is the assembly precision convenient to guarantee, but also the accumulated installation error caused when the first lens group 110 is installed can be reduced, and therefore the illumination effect of the road is improved.

In another preferred embodiment, when the second lens module 200 includes a plurality of second lens groups 210, all of the second lens groups 210 are arranged in a linear array. By the combination of the plurality of second lens groups 210, the range of the lighting device on the road and the brightness of the lighting can be increased, and the road lighting effect can be further improved. Meanwhile, all the second lens groups 210 are limited to be arranged along a straight line, so that the illumination device can be ensured to mainly irradiate along the width direction of a road, and irradiation light spots are limited and gathered in a certain range to ensure the road illumination effect; and meanwhile, the mounting position of the second lens group 210 is convenient to limit, and the precision in assembly is improved.

When the lens assembly and the housing 300 are assembled, all of the second lens groups 210 are commonly connected to the housing through the second lens module 200, and all of the second lens groups 210 are linearly arrayed on the second lens module 200. All the second lens groups 210 are pre-installed on the second lens module 200, and then the second lens module 200 is relatively fixed with the housing through various modes such as fastening screws or cementing, so that the installation difficulty is reduced, and the installation efficiency is improved. The assembly of the plurality of second lens groups 210 and the housing is achieved by the second lens module 200, and the mounting accuracy of the second lens groups 210 can be substantially determined by monitoring the positions and fixing states of the second lens groups 210 mounted on the second lens module 200; not only is the assembly precision convenient to guarantee, but also the accumulated installation error caused by the installation of the second lens group 210 can be reduced, thereby improving the illumination effect of roads.

The number of the first lens groups 110 and the number of the second lens groups 210 are not limited to each other, and preferably, the number of the first lens groups 110 and the number of the second lens groups 210 are equal to or close to each other. When the number of the first lens groups 110 is close to or equal to the number of the second lens groups 210, the brightness in the road width direction is closer, so that the environment of the driving road is more optimized, and the fatigue influence on the eyes of the driver is reduced.

In another preferred scheme, the light spot projection shape of the first lens group 110 is at least one of a circle, an ellipse or a rectangle; meanwhile, the projection shape of the light spot of the second lens group 210 is at least one of a circle, an ellipse or a rectangle, thereby increasing the adaptability of the lens assembly in use. The light spot specification of the first lens group 110 is consistent with the light spot of the second lens group 210, so that the brightness and the range of the lighting device can be conveniently determined, and the uniformity of the distribution of the first light spot and the second light spot can be guaranteed as much as possible.

EXAMPLE five

The present embodiment includes all the technical features of the first embodiment, and further includes the following technical features. The lighting device further comprises a transparent cover 400, the cover 400 is used for covering the first lens module 100 and the second lens module 200, and meanwhile, the cover 400 can be detachably connected with the housing 300, so that dust and moisture in the air can be isolated by the cover 400, certain protection effect is provided for the first lens module 100, the second lens module 200 and the light source, and the service life of the lighting device can be prolonged.

In a further modification, the sealing rings 500 are filled between the first and second lens modules 100 and 200 and the housing 300. The sealing ring 500 can improve the sealing performance of the lighting device and protect the light source. Meanwhile, the sealing ring 500 can also reduce the gap between the first lens module 100, the second lens module 200, and the housing 300, improving the assembly accuracy and stability of the first lens module 100 and the second lens module 200.

In addition, any combination of the schemes in the first embodiment to the fifth embodiment is also within the protection scope of the present application.

The above detailed description is provided for a lens assembly and an illumination device provided in the embodiments of the present application, and the principles and embodiments of the present application are described herein using specific examples, which are merely provided to help understand the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.