CN214332577U - Light guide assembly and lamp - Google Patents

Abstract

The utility model belongs to the technical field of the light guide, a leaded light subassembly and lamps and lanterns is provided, including annular lens, be equipped with annular income plain noodles and annular play plain noodles on the lens, go into the plain noodles and go up the sunken holding tank that is used for holding the lamp source that is formed with, go out the plain noodles bending connection in going into the plain noodles, and go out the plain noodles along the radial ascending central axis protrusion setting of inboard orientation lens to deflect the central axis of light orientation lens. By disposing the lens in a ring shape, the weight of the lens can be effectively reduced; and the light-emitting surface is connected with the light-in surface in a bending mode, and the light-emitting surface is arranged towards the central axis of the lens in a protruding mode along the radial upward inner side, so that light rays emitted by the lamp source in the accommodating groove can deflect towards the central axis of the lens under the refraction of the light-emitting surface after passing through the light-emitting surface, and the light rays are uniformly distributed at the central position of the lens, so that the lens can present planar light spots, the distribution uniformity of the light spots is good, and the requirements of people are met.

Description

Light guide assembly and lamp

Technical Field

The application belongs to the technical field of light guides, and particularly relates to a light guide assembly and a lamp.

Background

The lens is a structural member for guiding light emitted by the LED from the PCB to the front panel or a predetermined position, and the conventional lamp usually guides light by disposing the lens on the light emitting side of the LED light source.

According to the requirement of people on light spots, when the planar light spots need to be led out, the lens is generally arranged into a block shape, so that the weight of the lens is very large; set up the lens and form the ring, can realize the heavy effect that subtracts of lens, but be difficult to present planar facula, and the distribution homogeneity of facula is relatively poor, can't satisfy present people's lighting requirements.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the embodiment of the application is as follows: the utility model provides a light guide assembly, aims at solving prior art, annular lens is difficult to present planar facula and the homogeneity of facula is poor technical problem.

In order to solve the technical problem, the embodiment of the application adopts the following technical scheme:

the utility model provides a light guide assembly, including annular lens, be equipped with annular income plain noodles and annular play plain noodles on the lens, go into the sunken holding tank that is used for holding the lamp source that is formed with on the plain noodles, go out the plain noodles bending connect in go into the plain noodles, just go out the plain noodles along radial ascending inboard orientation the central axis protrusion of lens sets up, with the light orientation the central axis deflection of lens.

In one embodiment, the light emitting surface includes a first flat section and a first curved section, which are sequentially connected in a radial direction, the first flat section is connected to an outer edge of the light incident surface in the radial direction in a curved manner, the first curved section is connected to an inner edge of the light incident surface in the radial direction in a curved manner and is convexly disposed toward the central axis of the lens, and a curvature of the first flat section is smaller than a curvature of the first curved section.

In one embodiment, a groove wall of the accommodating groove is an incident surface, the incident surface includes a second curved section and a second gentle section, and the second curved section and the second gentle section are sequentially connected along a distribution direction of the first gentle section and the first curved section; the second slow section is a smooth curved surface and is used for refracting light rays to the first curved section.

In one embodiment, the curvature of the second curved section is greater than the curvature of the second gentle section, and the second curved section is concavely disposed in a direction away from the central axis of the lens to deflect light rays toward the central axis of the lens.

In one embodiment, the number of the receiving grooves is one, and the receiving groove is an annular groove.

In one embodiment, the plurality of holding grooves are uniformly distributed on the light incident surface along the circumferential direction, and each holding groove is used for holding a light source.

In one embodiment, the lens is a one-piece structure.

In one embodiment, the light guide assembly further includes a diffusion cover, and the diffusion cover is covered on the light emitting surface.

In one embodiment, the light guide assembly further comprises a transparent member, the lens, the diffusion cover and the transparent member are sequentially distributed along the axial direction of the lens, and the transparent member faces the diffusion cover.

The embodiment of the application further provides a lamp, including the lamp source with the leaded light subassembly, the lamp source is located in the holding tank.

The beneficial effect of the light guide assembly and the lamp that this application embodiment provided lies in: compared with the prior art, the lens is arranged in a ring shape, so that the weight of the lens can be effectively reduced; and the light-emitting surface is connected with the light-in surface in a bending mode, and the light-emitting surface is arranged towards the central axis of the lens in a protruding mode along the radial upward inner side, so that light rays emitted by the lamp source in the accommodating groove can deflect towards the central axis of the lens under the refraction of the light-emitting surface after passing through the light-emitting surface, and the light rays are uniformly distributed at the central position of the lens, so that the lens can present planar light spots, the distribution uniformity of the light spots is good, and the requirements of people are met.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of a lens of a light guide assembly according to an embodiment of the present disclosure;

FIG. 2 is a top view of a light guide assembly provided in an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a light path diagram of FIG. 4;

fig. 6 is a perspective structural view of a light guide assembly according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1-a lens; 11-the light incident surface; 12-a light-emitting surface; 121-first plateau section; 122 — a first bend section; 13-accommodating grooves; 131-an incident face; 1311-second bend section; 1312-a second smoothing section; 2-a diffusion cover; 3-a transparent member; 4-a light source; y-axial direction; x-radial direction.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

For explaining the technical scheme of the application, the following detailed description is made in conjunction with the specific drawings and the embodiments:

referring to fig. 1 to 5, a light guide assembly according to an embodiment of the present disclosure includes an annular lens 1, and the lens 1 is provided with a light incident surface 11 and a light emitting surface 12, where the light incident surface 11 and the light emitting surface 12 are both annular. The light incident surface 11 is planar, and a receiving groove 13 for receiving the light source 4 is formed in the light incident surface 11. The light emitting surface 12 is a continuous smooth curved surface, and the light emitting surface 12 is connected to the light incident surface 11 in a curved manner. When the lens works, the light source 4 is arranged in the accommodating groove 13, and light emitted by the light source 4 enters the lens 1 from the accommodating groove 13, is deflected under the refraction action of the light emitting surface 12, and is emitted to the outside from the light emitting surface 12. It should be noted here that the light emitting surface 12 is convexly disposed toward the central axis of the lens 1 along the inner side of the radial direction x, that is, the protruding direction of the light emitting surface 12 forms an included angle greater than 0 ° with the radial direction x of the lens 1 and the axial direction y of the lens 1, so that the light emitting surface 12 is convexly disposed, and the light can be deflected toward the central axis of the lens 1, thereby achieving the effect of deflecting the light toward the middle of the lens 1, and enabling the lens 1 to guide out the planar light spot.

Wherein, the radial direction x and the axial direction y are referred to as radial direction x and axial direction y of the lens 1, respectively, and the radial direction x is perpendicular to the axial direction y, which will not be explained one by one hereinafter.

In the embodiment of the present application, by disposing the lens 1 in a ring shape, the weight of the lens 1 can be effectively reduced; moreover, the light emitting surface 12 is connected to the light incident surface 11 in a bending manner, and the light emitting surface 12 is arranged in a protruding manner towards the central axis of the lens 1 along the inner side of the radial direction x, so that light rays emitted by the lamp source 4 in the accommodating groove 13 can deflect towards the central axis of the lens 1 under the refraction of the light emitting surface 12 after passing through the light emitting surface 12, and the central position of the lens 1 is uniformly distributed with light rays, so that the lens 1 can present planar light spots, the distribution uniformity of the light spots is good, and the requirements of people are met.

Referring to fig. 4 and fig. 5, in the present embodiment, the light emitting surface 12 includes a first gentle section 121 and a first curved section 122 sequentially connected in a curved manner along the radial direction x, the first gentle section 121 is connected in a curved manner to an outer edge of the light incident surface 11 along the radial direction x, and the first curved section 122 is connected in a curved manner to an inner edge of the light incident surface 11 along the radial direction x, such that the first curved section 122 is disposed between the first gentle section 121 and the central axis of the lens 1. Moreover, the first bending section 122 is convexly disposed toward the central axis of the lens 1, that is, the convex direction of the first bending section 122 forms an included angle greater than 0 ° with the radial direction x of the lens 1 and the axial direction y of the lens 1, respectively, and the curvature of the first buffering section 121 is smaller than the curvature of the first bending section 122, the disposition of the first bending section 122 helps the light to be concentrated on the first bending section 122 and deflected toward the middle position of the lens 1, and the disposition of the first buffering section 121 helps the light to be deflected toward the middle position of the lens 1. Thus, the light emitted by the light source 4 is refracted by the first bending section 122 and the first buffering section 121 respectively, and the light is emitted towards the central axis of the lens 1 along the protruding direction of the first bending section 122, that is, the light is emitted towards the middle position of the lens 1, so that the light spots on the lens 1 are distributed in a planar manner, and the first bending section 122 and the first buffering section 121 are arranged to contribute to the uniform distribution of the light.

Referring to fig. 4 and fig. 5, in the present embodiment, the groove wall of the receiving groove 13 is the incident surface 131, the incident surface 131 includes a second bending section 1311 and a second buffering section 1312, the second bending section 1311 and the second buffering section 1312 are both connected to the incident surface 11 in a bending manner, the second bending section 1311 and the second buffering section 1312 are sequentially connected in a bending manner along the radial direction x, and the connection direction of the second bending section 1311 and the second buffering section 1312 is parallel to the distribution direction of the first buffering section 121 and the first bending section 122, so that the first buffering section 121 is disposed corresponding to the position of the second bending section 1311 along the axial direction y of the lens 1, and the first bending section 122 is disposed corresponding to the position of the second buffering section 1312 along the axial direction y of the lens 1. It should be noted here that the second slow section 1312 is a smooth curved surface, and the second slow section 1312 is used for refracting the light to the first curved section 122. Thus, in operation, part of the light emitted by the light source 4 is refracted to the first curved section 122 through the second gentle section 1312 and is deflected towards the central axis of the lens 1 under the refraction effect of the second curved section 1311, so that the light can be distributed at the middle position of the lens 1, planar light distribution is realized, and the light distribution is more uniform; moreover, the second gentle section 1312 is a smooth curved surface, that is, the second gentle section 1312 is a curved surface with a small curvature, which reduces reflection and diffusion of light on the second gentle section 1312, so that the light of the second gentle section 1312 can be better refracted to the first curved section 122, which is helpful for improving the utilization rate of the light and improving the light guiding brightness of the lens 1.

Referring to fig. 4 and 5, in the present embodiment, the second bending section 1311 is recessed away from the central axis of the lens 1, such that the curvature of the second bending section 1311 is greater than the curvature of the second slowing section 1312, so as to deflect the light toward the central axis of the lens 1. It should be noted here that, during operation, a part of the light emitted by the light source 4 passes through the first bending section 122 after being refracted by the second gentle section 1312, and then is deflected toward the central axis of the lens 1 after being refracted by a larger angle by the first bending section 122; the other part is refracted by the second bending section 1311 and then passes through the refraction effect of the first gentle section 121 and exits to the outside, wherein, because the curvature of the second bending section 1311 is greater than that of the second gentle section 1312, the light of the lamp source 4 can be refracted towards the central axis of the lens 1 by a larger angle after passing through the second bending section 1311, and thus, the light can be deflected towards the middle position of the lens 1 after passing through the refraction of the first gentle section 121 after passing through the refraction of the second bending section 1311, so that the large curvature design of the second bending section 1311 also helps the light to be deflected towards the central axis of the lens 1, thereby improving the deflection effect of the light.

Referring to fig. 2, in the embodiment, the number of the accommodating grooves 13 is one, the accommodating grooves 13 are annular grooves, and the number of the lamp sources 4 can be one or more, and when the number of the lamp sources 4 is multiple, the multiple lamp sources 4 are uniformly distributed in the annular grooves along the circumferential direction. The annular grooves are arranged to facilitate the deletion operation of the light sources 4, the number of the light sources 4 is large, the uniformity of light is high, and the brightness is high.

In another embodiment, the accommodating grooves 13 are provided in a plurality, the accommodating grooves 13 are uniformly distributed on the light incident surface 11 along the circumferential direction, and each accommodating groove 13 is used for accommodating one light source 4, that is, the light sources 4 are accommodated in the accommodating grooves 13 in a one-to-one correspondence.

In the present embodiment, the lens 1 is an integrally formed structure, which facilitates the curved and continuous connection between the first curved section 122 and the first gentle section 121, and also facilitates the curved and continuous connection between the second curved section 1311 and the second gentle section 1312, thereby facilitating to improve the refraction effect of light; the integral molding also contributes to improving the processing efficiency of the lens 1.

Referring to fig. 6, in the present embodiment, the light guide assembly further includes a diffusion cover 2, the lens 1 and the diffusion cover 2 are sequentially distributed at intervals along the axial direction y of the lens 1, and the diffusion cover 2 covers the light emitting surface 12, that is, the diffusion cover 2 covers the first slow section 121 and the first curved section 122, so that the light emitted from the first curved section 122 and the first slow section 121 can enter the diffusion cover 2 and is emitted to the outside under the diffusion effect of the diffusion cover 2, and thus, the uniformity and the brightness of the light are improved; the first curved section 122, the first gentle section 121, the second curved section 1311, and the second gentle section 1312 are provided to help deflect the light toward the middle of the lens 1, so that a planar light spot can be formed on the diffuser cap 2, and the provision of the diffuser cap 2 helps diffuse the planar light spot.

Referring to fig. 6, in the present embodiment, the light guide assembly further includes a transparent member 3, the lens 1, the diffusion cover 2 and the transparent member 3 are sequentially distributed along an axial direction y of the lens 1, and the transparent member 3 faces the diffusion cover 2. So, during operation, the light that lamp source 4 sent is emergent to the diffusion cover 2 in through the refraction back of first gentle section 121 and first crooked section 122 at last, and the diffusion cover 2 carries out after the diffusion effect with light guide to transparency 3 on, so for form planar facula on the transparency 3, and facula evenly distributed, luminance is high.

The embodiment of the application further provides a lamp, which comprises a lamp source 4 and the light guide assembly, wherein the lamp source 4 is accommodated in the accommodating groove 13 of the light guide assembly. The light guide assembly in this embodiment is the same as the light guide assembly in the previous embodiment, and specific reference is made to the description of the light guide assembly in the previous embodiment, which is not repeated herein. The lamp in the embodiment can present a planar light spot by adopting the light guide assembly, and has a small weight.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a light guide assembly, its characterized in that includes annular lens, be equipped with annular income plain noodles and annular play plain noodles on the lens, go into the sunken holding tank that is used for holding the lamp source that is formed with on the plain noodles, go out the plain noodles bending connect in go into the plain noodles, just go out the plain noodles along radial ascending inboard orientation the central axis protrusion of lens sets up, with light orientation the central axis deflection of lens.

2. The light guide assembly according to claim 1, wherein the light exiting surface includes a first flat section and a first curved section sequentially connected in a radial direction, the first flat section is curved and connected to an outer edge of the light entering surface in the radial direction, the first curved section is curved and connected to an inner edge of the light entering surface in the radial direction and is convexly disposed toward the central axis of the lens, and a curvature of the first flat section is smaller than a curvature of the first curved section.

3. The light guide assembly according to claim 2, wherein the groove wall of the receiving groove is an incident surface, and the incident surface includes a second curved section and a second flat section, and the second curved section and the second flat section are sequentially connected along the distribution direction of the first flat section and the first curved section; the second slow section is a smooth curved surface and is used for refracting light rays to the first curved section.

4. A light guide assembly according to claim 3, wherein the second curved section has a curvature greater than a curvature of the second flattened section, and the second curved section is concavely disposed in a direction away from the central axis of the lens to deflect light toward the central axis of the lens.

5. The light guide assembly of any one of claims 1-4, wherein the receiving groove is provided as one, the receiving groove being an annular groove.

6. The light guide assembly of any one of claims 1 to 4, wherein the plurality of receiving grooves are uniformly distributed on the light incident surface along a circumferential direction, and each receiving groove is configured to receive a light source.

7. A light guide assembly according to any one of claims 1 to 4, wherein the lens is of unitary construction.

8. The light guide assembly according to any one of claims 1-4, further comprising a diffuser disposed over the light exit surface.

9. The light guide assembly of claim 8, further comprising a transparent member, wherein the lens, the diffuser cap and the transparent member are sequentially disposed along an axial direction of the lens, and the transparent member faces the diffuser cap.

10. A light fixture comprising a light source and the light guide assembly of any one of claims 1-9, wherein the light source is disposed in the receiving cavity.

Images