Integrated light guide structure

Abstract

The utility model provides an integrated light guide structure which comprises a light guide, a light source and a plurality of light-emitting columns. The light source is arranged at one end or two ends of the light guide; in the length direction of the light guide, the light-emitting columns are distributed on the side face of the light guide in an array mode, a plurality of reflecting faces are arranged at the positions, opposite to the light-emitting columns, of the side face of the light guide, and the reflecting faces correspond to the light-emitting columns in a one-to-one mode. Light emitted by the light source enters the light guide from one end or two ends of the light guide and enters the corresponding light-emitting columns after being reflected by a plurality of reflecting surfaces in the light guide. According to the utility model, the plurality of strip-shaped light-emitting columns are lightened through one LED, so that the light-emitting effect that the plurality of vertical strips are lightened through one LED is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical field, concretely relates to a one-piece light guide structure. BACKGROUND

[0002] In the interior atmosphere lamp, due to the special requirement of customer, need to form multiple strip light emitting effect in the same plane, the current design scheme adopts multiple LED and multiple light guide to realize multiple strip light emitting effect.

[0003] As shown in Figure 1 8 LED 100, 8 light guide 200 are arranged in array, realize 8 strip light emitting effect, in this scheme, due to the color difference and the luminance difference between each LED, will lead to 8 strip light emitting light guide luminance inconsistency or color inconsistency, 8 light guides due to actual position difference, possibly need to adopt 8 sets of mould to carry out injection molding, and the mould cost is higher, and adopts 8 LED, then needs 8 matching module, and the cost will also increase.

[0004] Therefore, it is necessary to provide a new technical scheme. INVENTION CONTENTS

[0005] In order to solve the technical problems existing in the prior art, the utility model discloses a one-piece light guide structure, which is lit by a LED to realize the light emitting effect of multiple vertical strips of a LED. The specific technical scheme is as follows:

[0006] The utility model provides a one-piece light guide structure, which comprises a light guide, a light source and a plurality of light emitting columns:

[0007] The light guide is in the shape of a long strip;

[0008] The light source is located at one end or both ends of the light guide;

[0009] Along the length direction of the light guide, the plurality of light emitting columns are arrayed on the side surface of the light guide, the side surface of the light guide is provided with a plurality of reflecting surfaces opposite to the plurality of light emitting columns, and the plurality of reflecting surfaces correspond one-to-one to the plurality of light emitting columns,

[0010] The light emitted by the light source enters the light guide from one end or both ends of the light guide and enters the corresponding light emitting column after being reflected by the plurality of reflecting surfaces in the light guide.

[0011] Further, the plurality of light emitting columns are perpendicular to one side of the light guide.

[0012] Further, the light guide and the light emitting column are an integral structure.

[0013] Further, the light emitting column is provided with a light guide tooth.

[0014] Further, the light guide teeth are a plurality of light guide teeth arrayed on the light emitting column.

[0015] Further, the light guide teeth are prismatic and / or spherical.

[0016] Further, the reflective surface is recessed inwardly from the side of the light guide as a V-shaped slope or a tapered groove in a direction perpendicular to the length direction of the light guide.

[0017] Further, the reflective surface gradually increases in turn along the light guide from one end having the light source to the other end; or, the reflective surface gradually increases in turn along the light guide from the two ends having the light source to the middle.

[0018] Further, the light source is an LED light source.

[0019] The utility model has the following beneficial effects:

[0020] (1) The integral light guide structure of the utility model designs a LED and a whole light guide form from the form of multiple LEDs and multiple light guides in the prior art, so that the light emitting effect of multiple vertical strips is realized by one LED, the color and uniformity of the whole light emitting are more consistent, and the problem of inconsistent brightness and color caused by the difference between LEDs or light guides is avoided.

[0021] (2) The integral light guide structure of the utility model changes multiple LEDs into a single LED, effectively reduces the cost of the LED module, and reduces the mold cost by designing multiple light guides into a whole light guide.

[0022] Additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor.

[0024] Figure 1 It is a structure schematic view of the vertical strip-shaped light emitting light guide in the prior art;

[0025] Figure 2 It is a structure schematic view of the integral light guide structure of the utility model;

[0026] Figure 3The light path diagram of the integral light guide structure.

[0027] Wherein, 1-light source, 2-light guide, 21-reflecting surface, 3-emitting column, 4-light guide tooth. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the 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 understood as a limitation of the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0030] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Please refer to Figure 2 and Figure 3 , Figure 2 The structure diagram of the integral light guide structure of the present application; Figure 3 The light path diagram of the integral light guide structure of the present application.

[0032] As Figure 2 shown, the present application provides an integral light guide structure, which comprises a light guide 2, a light source 1 and a plurality of emitting columns 3.

[0033] The light guide 2 is long strip-shaped. The light source 1 is arranged at one end of the light guide 2. The light source 1 is a single LED light source, the light emitting surface of the single LED faces the one end of the light guide, preferably, the central axis of the single LED is coaxial with the central axis of the light guide, so that as many light rays emitted by the single LED as possible enter the light guide. In other embodiments, the light source 1 is arranged at both ends of the light guide 2. The utility model discloses a plurality of LED is changed into single LED, which effectively reduces the cost of LED module.

[0034] Along the length direction of the light guide 2, a plurality of light emitting columns 3 are vertically distributed on one side of the light guide 2, and the other side of the light guide 2 has a plurality of reflecting surfaces 21, the plurality of reflecting surfaces 21 are opposite to and one-to-one corresponding to the plurality of light emitting columns 3. In other embodiments, the plurality of light emitting columns 3 are not limited to being distributed on one side of the light guide, but can also be on any side of the light guide, and the side of the light guide 2 has a plurality of reflecting surfaces 21 at the position opposite to the plurality of light emitting columns 3. In the utility model, the specific number of light emitting columns can be set to any number according to actual needs.

[0035] Among them, the light emitting column 3 is provided with a light guide tooth 4. The light guide tooth 4 is a plurality of, and a plurality of light guide teeth 4 are arrayed on the light emitting column. In this embodiment, the light guide tooth 4 is prismatic and / or spherical, when the light guide tooth is prismatic, the length direction of the prismatic light guide tooth is perpendicular to the length direction of the light emitting column. In other embodiments, the light guide tooth can also be other irregular shapes.

[0036] As shown in Figure 2 and Figure 3 The dashed line in Figure 3 indicates the direction of light in the light guide and the light emitting column. The light emitted by the single LED enters the light guide 2 from one end or both ends of the light guide 2, then the light is totally reflected in the light guide 2, part of the light is reflected by a plurality of reflecting surfaces 21 and then enters a plurality of light emitting columns 3, the light entering the light emitting column is illuminated by the light guide tooth 4, thereby realizing the light emitting effect of one LED illuminating a plurality of vertically arranged light emitting columns.

[0037] Please continue to refer to Figure 2 In this embodiment, the light guide 2 and the light emitting column 3 are an integral structure, thereby reducing the mold cost.

[0038] The reflective surface 21 is recessed in a V-shaped slope or a conical groove from the side of the light guide 2 along the length direction of the light guide 2. The reflective surface 21 increases in turn along the light guide 2 from the end with the light source 1 to the other end, preferably, the reflective surface increases in turn. In the utility model, the position of the reflective surface on the light guide is different, and the size of the slope is also different. The slope near the LED position is smaller, and the slope far from the LED position is larger, so as to ensure that the light entering each light emitting column is uniform, and the same brightness of light is irradiated from each light emitting column. In other embodiments, the reflective surface 21 increases in turn along the light guide 2 from the two ends with the light source to the middle.

[0039] The integral light guide structure can be used for the light guide product of the interior decoration atmosphere lamp of the automobile. The utility model designs the form of multiple LEDs and multiple light guides in the prior art into the form of one LED and one integral light guide, so that the color and uniformity of the integral light emission are more consistent, and the problem of inconsistent brightness and color caused by the difference between the LEDs or the light guides is avoided. The utility model changes the multiple LEDs into a single LED, effectively reduces the cost of the LED module, and designs the multiple light guides into one integral light guide, thereby reducing the mold cost.

[0040] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0041] Although the embodiments of the utility model have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the utility model. The person skilled in the art can change, modify and modify the above embodiments within the scope of the utility model.

Claims

1. An integrated light guide structure, characterized by, It comprises a light guide (2), a light source (1) and a plurality of light emitting columns (3), The light guide (2) is long strip-shaped; The light source (1) is located at one end or both ends of the light guide (2); Along the length direction of the light guide (2), a plurality of light emitting columns (3) are arrayed on the side of the light guide (2), and the side of the light guide (2) has a plurality of reflecting surfaces (21) opposite to the plurality of light emitting columns (3), the plurality of reflecting surfaces (21) correspond to the plurality of light emitting columns (3) one by one, The light emitted by the light source enters the light guide from one end or both ends of the light guide and enters the corresponding light emitting column after being reflected by the plurality of reflecting surfaces in the light guide.

2. The integrated light guide structure according to claim 1, wherein The plurality of light emitting columns (3) are perpendicular to one side of the light guide (2).

3. The integrated light guide structure of claim 1, wherein, The light guide (2) and the light emitting column (3) are an integrated structure.

4. The integrated light guide structure of claim 1, wherein, The light emitting column (3) is provided with a light guide tooth (4).

5. The integrated light guide structure of claim 4, wherein, The light guide tooth (4) is a plurality of light guide teeth (4) arrayed on the light emitting column (3).

6. The integrated light guide structure of claim 4, wherein, The light guide tooth (4) is prismatic and / or spherical.

7. The integrated light guide structure of claim 1, wherein, Along the length direction of the light guide, the reflecting surface (21) is recessed inward from the side of the light guide to form a V-shaped slope or a conical groove.

8. The integrated light guide structure of claim 7, wherein, Along the light guide (2) from the end with the light source to the other end, the reflecting surface (21) increases in turn; or, along the light guide (2) from the two ends with the light source to the middle, the reflecting surface (21) increases in turn.

9. The integrated light guide structure of claim 1, wherein, The light source (1) is an LED light source.

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