CN210605056U

CN210605056U - Light guide plate and lamp

Info

Publication number: CN210605056U
Application number: CN201921493661.7U
Authority: CN
Inventors: 曹建辉; 林宏埠; 陈鸿吉
Original assignee: Xiamen Eco Lighting Co Ltd
Current assignee: Xiamen Eco Lighting Co Ltd; Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-05-22
Anticipated expiration: 2029-09-09
Also published as: JP3228095U

Abstract

The utility model is suitable for a lamps and lanterns technical field provides a light guide plate and lamps and lanterns, and this light guide plate includes the base plate, and the through-hole has been seted up at the middle part of base plate, and the lateral wall of through-hole constitutes into the plain noodles, and the bottom surface of base plate constitutes first play plain noodles, and the outer peripheral face of base plate constitutes the second play plain noodles, has seted up at least one ring channel on the base plate. The light emitted by the light emitting source enters the substrate through the light incident surface, and the light can be respectively emitted from the first light emitting surface and the second light emitting surface. The annular groove is formed in the substrate and located between the light incident surface and the second light emitting surface, and the annular groove can reflect light rays emitted into the second light emitting surface to the first light emitting surface, so that the intensity of the light rays emitted from the second light emitting surface can be reduced, and the illumination intensity at the peripheral surface of the light guide plate can be reduced. Therefore the utility model discloses can cancel the structural design of anti-dazzling ring, anti-dazzling ring can be replaced to this light guide plate, and the light intensity of light guide plate outer peripheral face department is weak, and the user looks directly not dazzling, can effectively reduce the cost of lamps and lanterns.

Description

Light guide plate and lamp

Technical Field

The utility model belongs to the technical field of lamps and lanterns, more specifically say, relate to a light guide plate and use lamps and lanterns of this light guide plate.

Background

The flying saucer lamp is mostly made of an acrylic material and is a circular light guide plate, and the top surface of the light guide plate is lighted by laser dotting. Specifically, the light source is arranged in the center of the light guide plate, and light rays emitted by the light source enter the light guide plate through the light incident surface of the light guide plate and are emitted out from the bottom surface of the light guide plate.

Because the light guide plate has certain thickness, the light rays incident from the light incident surface of the light guide plate can also be emitted through the peripheral surface of the light guide plate, and the light rays emitted from the peripheral surface have high illumination intensity and are dazzling, so that the eyes of people cannot be directly viewed. In order to solve the above problem, a light shielding ring is additionally arranged on the outer peripheral surface of the light guide plate to shield light. However, the light-shielding ring needs to be made into a circular shape to be matched with the shape of the light guide plate, the processing and manufacturing efficiency is low, the installation of the light-shielding ring is inconvenient, the dimensional tolerance is not easy to control, and the cost of the lamp is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a light guide plate to solve the processing and the installation of the shading ring that exists among the prior art and be used for sheltering from the light of light guide plate outer peripheral face inconvenient, the problem that lamps and lanterns are with high costs.

In order to achieve the above object, the utility model adopts the following technical scheme: the light guide plate comprises a substrate, wherein a through hole for placing a light emitting source is formed in the middle of the substrate, the side wall of the through hole forms a light incident surface for allowing light emitted by the light emitting source to be incident into the substrate, the bottom surface of the substrate forms a first light emitting surface for allowing the light to be emitted, the outer peripheral surface of the substrate forms a second light emitting surface for allowing the light to be emitted, at least one annular groove for reflecting the light incident into the second light emitting surface to the first light emitting surface is formed in the substrate, and each annular groove is located between the light incident surface and the second light emitting surface.

Further, the inner side wall of the annular groove is provided with a first inclined surface and a second inclined surface which are respectively arranged in an inclined mode with the central axis of the through hole.

Further, the first inclined plane intersects with the second inclined plane, and an included angle between the first inclined plane and the second inclined plane ranges from 30 degrees to 90 degrees.

Further, the included angle between the first inclined surface and the second inclined surface is 60 degrees.

Further, each annular groove is located on the substrate and close to the second light emitting surface.

Furthermore, the annular grooves are at least two coaxially arranged, and the two surfaces of the substrate are respectively provided with the annular grooves.

Further, the depth of each of the annular grooves is greater than half the thickness of the base plate.

Another object of the present invention is to provide a lamp, including foretell light guide plate and being used for supporting the supporting seat of light guide plate, the light guide plate install in on the supporting seat.

Furthermore, the supporting seat comprises a base and a top seat detachably connected with the base, and the light guide plate is arranged between the base and the top seat; the middle part of base orientation the direction of footstock is protruding to be equipped with and is used for stretching into the convex part in the through-hole of light guide plate, the cover is established on the convex part and is fixed with the luminous body that is used for giving out light, the luminous body is located in the through-hole.

Furthermore, the light guide plate is provided with at least one positioning hole, and the base is correspondingly provided with a positioning column which is used for extending into the positioning hole.

The utility model provides a light guide plate and lamps and lanterns's beneficial effect lies in: compared with the prior art, the light emitted by the light emitting source enters the substrate through the light incident surface, and the light can be respectively emitted from the first light emitting surface and the second light emitting surface. The annular groove is formed in the substrate and located between the light incident surface and the second light emitting surface, and the annular groove can reflect light rays emitted into the second light emitting surface to the first light emitting surface, so that the intensity of the light rays emitted from the second light emitting surface can be reduced, and the illumination intensity at the peripheral surface of the light guide plate can be reduced. Therefore the utility model discloses can cancel the structural design of anti-dazzling ring, anti-dazzling ring can be replaced to this light guide plate, and the light intensity of light guide plate outer peripheral face department is weak, and the user looks directly not dazzling, can effectively reduce the cost of lamps and lanterns.

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 described 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 creative efforts.

Fig. 1 is a schematic perspective view of a light guide plate according to an embodiment of the present invention;

fig. 2 is a top view of a light guide plate according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a light guide plate according to an embodiment of the present invention;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

fig. 5 is an exploded schematic view of a lamp according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-a substrate; 10-a through hole; 11-the light incident surface; 12-a first light-emitting surface; 13-a second light-emitting surface; 14-an annular groove; 141-a first bevel; 142-a second bevel; 15-positioning holes;

2-a support seat; 21-a base; 211-a convex part; 212-a light emitter; 2121-lamp panel; 2122-lamp bead; 213-positioning column; 214-a hook; 22-a top seat; 220-card hole.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

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 invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, fig. 3 and fig. 4, a light guide plate according to an embodiment of the present invention will now be described. The light guide plate comprises a substrate 1, wherein a through hole 10 for placing a light source is formed in the middle of the substrate 1, the side wall of the through hole 10 forms a light incident surface 11 for allowing light emitted by the light source to enter the substrate 1, the bottom surface of the substrate 1 forms a first light emitting surface 12 for allowing the light to exit, and the outer peripheral surface of the substrate 1 forms a second light emitting surface 13 for allowing the light to exit. The substrate 1 is provided with at least one annular groove 14 for reflecting the light emitted into the second light emitting surface 13 to the first light emitting surface 12, and each annular groove 14 is located between the light incident surface 11 and the second light emitting surface 13.

Optionally, each annular groove 14 is located on the substrate 1 and close to the second light emitting surface 13, that is, the distance between the annular groove 14 and the light incident surface 11 is greater than the distance between the annular groove 14 and the second light emitting surface 13, so that the light emitted from the first light emitting surface 12 is uniform.

Optionally, the top surface of the substrate 1 is processed by laser dotting, and the light emitted from the light emitting source is obliquely incident into the substrate 1, so that the light is emitted from the first light emitting surface 12 as far as possible. The outer peripheral surface of the substrate 1 is frosted to reduce the illumination intensity of the light emitted from the second light emitting surface 13. Optionally, the substrate 1 is made of acryl, which is not limited herein.

Further, referring to fig. 4, as a specific implementation of the light guide plate according to the embodiment of the present invention, the annular groove 14 has a first inclined surface 141 and a second inclined surface 142, which are respectively inclined from the central axis of the through hole 10. With this structure, the light incident from the light incident surface 11 can be reflected by the first inclined surface 141, so that the light incident on the second light emitting surface 13 can be respectively emitted to the two side surfaces of the substrate 1, thereby reducing the illumination intensity emitted from the second light emitting surface 13. A part of the light entering the second light emitting surface 13 is reflected by the second inclined surface 142, so as to further reduce the intensity of the light emitted from the second light emitting surface 13. Therefore, the intensity of light emitted from the second light emitting surface 13 is weak due to the double reflection of the first inclined surface 141 and the second inclined surface 142, and the luminance of the light emitting surface of the light guide plate is low, so that a user can look straight without glaring.

Alternatively, the first inclined surface 141 and the second inclined surface 142 may be two parallel inclined surfaces, or two intersecting inclined surfaces; the included angle between the first inclined surface 141 and the central axis of the through hole 10 and the included angle between the second inclined surface 142 and the central axis of the through hole 10 can be adjusted according to actual needs, and are not limited herein.

Further, referring to fig. 4, as a specific implementation of the light guide plate according to the embodiment of the present invention, the first inclined plane 141 intersects the second inclined plane 142, and an included angle between the first inclined plane 141 and the second inclined plane 142 ranges from 30 ° to 90 °. Optionally, the included angle between the first slope 141 and the second slope 142 is 60 °. With the structure, the light emitted by the light source can be effectively reflected to the first light emitting surface 12, so that most of the light emitted by the light source is emitted from the first light emitting surface 12, and the light emitting effect of the lamp is good; in addition, the light intensity of the peripheral surface of the light guide plate can be weakened, and the peripheral surface of the light guide plate is prevented from dazzling due to overlarge brightness. In other embodiments, the included angle between the first inclined surface 141 and the second inclined surface 142 can be adjusted according to actual needs, and is not limited herein.

Further, referring to fig. 4, as a specific implementation of the light guide plate according to the embodiment of the present invention, the depth of each annular groove 14 is greater than a half of the thickness of the substrate 1, that is, the depth of each annular groove 14 is smaller than the thickness of the substrate 1. In the structure, the bottom surface of the annular groove 14 and the corresponding side surface of the substrate 1 are arranged at intervals, and partial light can be continuously transmitted to the outer peripheral surface of the substrate 1 from the interval gap, so that the whole light guide plate can be lightened, and the irradiation effect of the lamp is improved. In other embodiments, the depth of each annular groove 14 can be adjusted according to actual needs, and is not limited herein.

Further, referring to fig. 4, as a specific implementation manner of the light guide plate according to the embodiment of the present invention, the annular grooves 14 are at least two coaxially disposed, and the annular grooves 14 are respectively disposed on two sides of the substrate. Optionally, the plurality of annular grooves 14 are sequentially arranged at intervals along the light incident surface 11 toward the second light emitting surface 13, the plurality of annular grooves 14 are divided into two groups, one group of annular grooves 14 is located on the top surface of the substrate 1, and the other group of annular grooves 14 is located on the bottom surface of the substrate 1. In this structure, when the number of the annular grooves 14 is greater than or equal to two, the plurality of annular grooves 14 are divided into two groups and respectively arranged on two side surfaces of the substrate 1, and are sequentially and alternately distributed at intervals. When the light emitted from the light source is reflected by the first inclined surface 141 and the second inclined surface 142 of the first annular groove 14, the intensity of the light irradiated to the second light emitting surface 13 is reduced; after being repeatedly reflected by the plurality of annular grooves 14 for a plurality of times, the intensity of the light irradiated to the second light emitting surface 13 can be gradually reduced, so that the illumination intensity from the second light emitting surface 13 can be greatly weakened, and a user can directly view the peripheral surface of the light guide plate without glaring.

By the alternating arrangement of the plurality of annular grooves 14, a plurality of annular grooves 14 can be opened in the base plate 1. Optionally, the sum of the depths of two adjacent annular grooves 14 is greater than the thickness of the substrate 1, that is, there is a partially overlapped portion in the two adjacent annular grooves 14, so as to implement multiple reflection of light, thereby reducing the illumination intensity of the light emitted from the second light emitting surface 13. In other embodiments, the number and distribution of the annular grooves 14 may be adjusted according to actual needs, and are not limited herein.

Optionally, referring to fig. 4, as a specific implementation of the light guide plate according to the embodiment of the present invention, the cross section of the annular groove 14 is V-shaped. With this structure, the first inclined plane 141 and the second inclined plane 142 are symmetrically distributed about the central axis of the annular groove 14, and have a good light reflection effect. In other embodiments, the cross-section of the annular groove 14 may have other configurations, such as trapezoidal, circular, semicircular, etc., and is not limited thereto.

Referring to fig. 5 and fig. 6 together, a lamp according to an embodiment of the present invention will now be described. The lamp comprises the light guide plate and a support seat 2 for supporting the light guide plate, wherein the light guide plate is arranged on the support seat 2.

The utility model provides a light guide plate and lamps and lanterns's beneficial effect lies in: compared with the prior art, the light emitted from the light source enters the substrate 1 through the light incident surface 11, and the light can be emitted from the first light emitting surface 12 and the second light emitting surface 13 respectively. By forming the annular groove 14 on the substrate 1, and the annular groove 14 is located between the light incident surface 11 and the second light emitting surface 13, the annular groove 14 can reflect the light emitted from the second light emitting surface 13 to the first light emitting surface 12, so that the intensity of the light emitted from the second light emitting surface 13 can be reduced, and the illumination intensity of the outer peripheral surface of the light guide plate can be reduced. Therefore the utility model discloses can cancel the structural design of anti-dazzling ring, anti-dazzling ring can be replaced to this light guide plate, and the light intensity of light guide plate outer peripheral face is weak, and the user looks directly not dazzling, can effectively reduce the cost of lamps and lanterns.

Further, please refer to fig. 5 and fig. 6 together, as a specific implementation manner of the lamp provided by the embodiment of the present invention, the supporting seat 2 includes a base 21 and a top seat 22 detachably connected to the base 21, and the light guide plate is disposed between the base 21 and the top seat 22; the middle part of the base 21 is convexly provided with a convex part 211 extending into the through hole 10 of the substrate 1 in the direction towards the top seat 22, a luminous body 212 for emitting light is sleeved and fixed on the convex part 211, and the luminous body 212 is positioned in the through hole 10. In this structure, the base 21 and the top 22 can clamp and fix the light guide plate; the light emitted from the light-emitting body 212 fixed on the protrusion 211 can be incident into the substrate 1 through the light incident surface 11.

Optionally, referring to fig. 5 and fig. 6, a plurality of hooks 214 are disposed on the outer peripheral surface of the protrusion 211, and a corresponding fastening hole 220 for engaging with each hook 214 is disposed on the top seat 22, so as to detachably connect the base 21 and the top seat 22, and the base 21 and the top seat 22 are conveniently and quickly disassembled. In other embodiments, the base 21 and the top 22 may be detachably connected by other means, which are not limited herein.

Optionally, referring to fig. 5, the light emitter 212 may include a lamp plate 2121 and a plurality of lamp beads 2122 disposed on the lamp plate 2121, the lamp plate 2121 is fixed on the convex portion 211 in a sleeved manner, and the lamp beads 2122 are mounted on a side surface of the inner side wall of the lamp plate 2121 facing the through hole 10, so that light emitted from the lamp beads 2122 is incident into the substrate 1 from the light incident surface 11.

Further, please refer to fig. 1 and fig. 6 together, as a specific implementation of the lamp provided by the embodiment of the present invention, at least one positioning hole 15 is formed on the light guide plate, and the positioning column 213 for extending into the positioning hole 15 is correspondingly installed on the base 21. With this structure, the positioning column 213 and the positioning hole 15 are used for positioning, so that the substrate 1 can be positioned and mounted, the substrate 1 can be prevented from rotating, and the mounting stability of the substrate 1 can be improved. Optionally, the positioning hole 15 is communicated with the through hole 10, so that the positioning hole 15 can be conveniently machined and manufactured, and the manufacturing efficiency is improved. In other embodiments, the number of the positioning holes 15, the installation position, and the like can be adjusted according to actual needs, and are not limited herein.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Light guide plate, its characterized in that: the light source comprises a substrate, wherein a through hole for placing a light emitting source is formed in the middle of the substrate, the side wall of the through hole forms a light incident surface for allowing light emitted by the light emitting source to be incident into the substrate, the bottom surface of the substrate forms a first light emitting surface for allowing the light to be emitted, the outer peripheral surface of the substrate forms a second light emitting surface for allowing the light to be emitted, at least one annular groove for reflecting the light incident into the second light emitting surface to the first light emitting surface is formed in the substrate, and each annular groove is located between the light incident surface and the second light emitting surface.

2. The light guide plate according to claim 1, wherein: the annular groove is provided with a first inclined surface and a second inclined surface which are respectively obliquely arranged with the central axis of the through hole.

3. The light guide plate according to claim 2, wherein: the first inclined plane is intersected with the second inclined plane, and the included angle between the first inclined plane and the second inclined plane ranges from 30 degrees to 90 degrees.

4. The light guide plate according to claim 3, wherein: the included angle between the first inclined plane and the second inclined plane is 60 degrees.

5. The light guide plate according to claim 1, wherein: each annular groove is located on the substrate and close to the second light emitting surface.

6. The light guide plate according to claim 1, wherein: the annular grooves are at least two coaxially arranged, and the annular grooves are respectively formed in two surfaces of the base plate.

7. The light guide plate according to any one of claims 1 to 6, wherein: the depth of each annular groove is greater than half of the thickness of the base plate.

8. Lamps and lanterns, its characterized in that: comprising the light guide plate according to any one of claims 1 to 7 and a support base for supporting the light guide plate, the light guide plate being mounted on the support base.

9. The luminaire of claim 8, wherein: the supporting seat comprises a base and a top seat detachably connected with the base, and the light guide plate is arranged between the base and the top seat; the middle part of base orientation the direction of footstock is protruding to be equipped with and is used for stretching into the convex part in the through-hole of light guide plate, the cover is established on the convex part and is fixed with the luminous body that is used for giving out light, the luminous body is located in the through-hole.

10. The luminaire of claim 9, wherein: the light guide plate is provided with at least one positioning hole, and the base is correspondingly provided with a positioning column which is used for extending into the positioning hole.