CN214409371U - Light guide component, license plate lamp and vehicle - Google Patents
Light guide component, license plate lamp and vehicle Download PDFInfo
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- CN214409371U CN214409371U CN202022430402.9U CN202022430402U CN214409371U CN 214409371 U CN214409371 U CN 214409371U CN 202022430402 U CN202022430402 U CN 202022430402U CN 214409371 U CN214409371 U CN 214409371U
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- light
- light guide
- guide member
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- serration
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Abstract
The embodiment of the utility model provides a light guide part, license plate lamp and vehicle is related to, including leaded light main part and at least one income light portion, wherein: the at least one light inlet part is positioned at the side part of the light guide part, is connected with the light guide main body and is used for receiving incident light from at least one light source opposite to the at least one light inlet part; the light guide body includes: a serrated portion on a top of the light guide body, the serrated portion including a plurality of serrations each including a first surface and a second surface for reflecting incident light from the at least one light incident portion to the light exiting portion, and at least one of the first surface and the second surface having a plurality of different inclination angles among the plurality of serrations; and a light emitting portion opposite to the saw tooth portion for emitting the reflected light from the saw tooth portion. The embodiment of the utility model discloses a can improve the homogeneity of the light of following light guide part outgoing.
Description
Technical Field
The utility model relates to the field of lighting, concretely relates to light guide component, license plate lamp and vehicle.
Background
In order to remind and warn pedestrians and other drivers, lamps with different functions such as a head lamp, a tail lamp, a brake lamp, a width lamp, a license plate lamp and the like are installed on an automobile, wherein the license plate lamp is used for illuminating a license plate at night or when the sky color is dark.
In the prior art, two symmetrical license plate lamps are usually installed above a license plate to achieve the purpose of illuminating the license plate, but most license plate lamps adopt the mode that light rays emitted by a bulb are directly projected onto the license plate through a lens or a collimator, so that the problems of local over-brightness of the license plate, dark space and the like are caused.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the present invention is to provide a light guide member, a license plate lamp, and a vehicle, which can at least partially solve the above-mentioned problems.
According to an aspect of the present invention, there is provided a light guide member, including a light guide main body and at least one light incident portion, wherein: the at least one light inlet part is positioned at the side part of the light guide part, is connected with the light guide main body and is used for receiving incident light from at least one light source opposite to the at least one light inlet part; the light guide body includes: a serrated portion on a top of the light guide body, the serrated portion including a plurality of serrations each including a first surface and a second surface for reflecting incident light from the at least one light incident portion to the light exiting portion, and at least one of the first surface and the second surface having a plurality of different inclination angles among the plurality of serrations; and a light emitting portion opposite to the saw tooth portion for emitting the reflected light from the saw tooth portion.
According to the utility model discloses a plurality of sawtooth that have different inclination can make the light that is reflected by it have a plurality of different light-emitting angles when going out from light-emitting portion, can improve the homogeneity of the light from light-emitting portion outgoing from this.
In one embodiment, the plurality of teeth are arranged continuously or intermittently along the axial direction of the light guiding body.
In one embodiment, an inclination angle of at least one of the first surface and the second surface with respect to an axial direction of the light guide member ranges from 0 ° to 50 °.
In one embodiment, the light emergent portion is further configured to totally reflect incident light from the at least one light incident portion to the sawtooth portion, and emit the incident light from the light emergent portion after being reflected again by the sawtooth portion.
In one embodiment, at least one light incident portion is cylindrical and is formed by splicing a plurality of small faces.
According to the utility model discloses an embodiment, the portion of incidenting that has this kind of structure can have the function of mixing light, and the light that incides the light guide part inside through the portion of incidenting can have more incident angles promptly, makes the light of following the light guide part outgoing more even from this.
In one embodiment, the at least one light entry portion and the light guide body are integrally formed.
In one embodiment, the light guiding body is a partial cylinder having a flattened surface at the top, with the indentations located on the surface.
The utility model discloses an on the other hand still provides a license plate lamp, include:
the light guide member as described above;
and at least one light source opposite to the at least one light incident portion of the light guide member such that the at least one light incident portion receives incident light from the at least one light source.
Another aspect of the present invention further provides a vehicle, including any one of the above light guide members, or the license plate lamp as above.
Drawings
The above features, technical features, advantages and modes of realisation of the present invention will be further explained in the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings, wherein,
fig. 1 shows a perspective view of a license plate lamp 10 according to an embodiment of the present invention;
fig. 2 is a partially enlarged schematic view of a region a of the light guide member 100 of fig. 1;
fig. 3 is a schematic view illustrating a propagation path of light entering from the light incident portion 110 of fig. 1.
Detailed Description
Embodiments of the present invention are exemplarily described below. As those skilled in the art will appreciate, the illustrated embodiments may be modified in various different ways without departing from the inventive concept. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive. In the following, the same reference numbers generally indicate functionally identical or similar elements.
Fig. 1 is a schematic perspective view illustrating a license plate lamp 10 according to an embodiment of the present invention, fig. 2 is a partially enlarged view illustrating a region a of the light guide member 100 of fig. 1, and fig. 3 is a schematic view illustrating a propagation path of light entering from the light incident portion 110 of fig. 1. as shown in fig. 1 to 3, the license plate lamp 10 includes the light guide member 100, a first light source 200, and a second light source 200 ', wherein the light guide member 100 includes a light guide body 140, and a first light incident portion 110 and a second light incident portion 110 ' respectively located at left and right sides of the light guide body 140 and connected to the light guide body, the first light incident portion 110 is disposed opposite to the first light source 200 for receiving incident light from the first light source 200, and the second light incident portion 110 ' is disposed opposite to the second light source 200 ' for receiving incident light from the second light source 200 '.
In one example, examples of the first and second light sources 200 and 200' may include, but are not limited to, incandescent lamps, halogen lamps, LED lamps, xenon lamps, laser sources, and the like.
In one example, the first and second light incident portions 110 and 110 'may have a function of mixing light, that is, light incident into the light guide body 140 through the first and second light incident portions 110 and 110' may have more incident angles, thereby making the light emitted from the light guide body 140 more uniform. For example, as shown in fig. 1, the first light incident portion 110 and the second light incident portion 110 'have a columnar shape and are formed by joining a plurality of facets, and light from the first light source 200 and the second light source 200' may be reflected by the facets and then incident into the light guide body 140 at a plurality of angles.
It should be noted that although fig. 1 to 3 illustrate that the light guide member 100 includes two light incident portions, the first light incident portion 110 and the second light incident portion 110 ', and the license lamp 10 includes two light sources, the first light source 200 and the second light source 200', it is understood that, in the case that the length of the light guide body 140 is short, the light guide member 100 may include only the first light incident portion 110 or the second light incident portion 110 ', and accordingly, the license lamp 10 may include only the first light source 200 or the second light source 200'.
In addition, a license plate 20 is also shown in fig. 1, and is disposed under the license lamp 10, and the light emitted from the bottom of the light guide 100 may be used to illuminate the license plate 20.
As shown in fig. 2, the light guide member 100 may further include a serration 120 and a light emitting portion 130, wherein the serration 120 is located at the top of the light guide body 140, and the light emitting portion 130 is opposite to the serration 120. Specifically, the light guide body 140 is a partial cylinder having a flattened surface 141 at the top, and the serration 120 is located on the surface 141.
In the example of fig. 3, the optical axis OO' of the first light source 200 opposite to the first light incident portion 110 extends along the axial direction x of the light guide body 140, and light incident from the first light incident portion 110 may reach the serrations 120 and be reflected by the serrations to the light exit portion 130, and finally exit the light guide member 100 at the light exit portion 130 by refraction of the light, thereby providing illumination to the license plate 20; the light incident from the first light incident portion 110 may also reach the light emergent portion 130, be totally reflected by the light emergent portion 130 to the serrations 120, be reflected again by the serrations 120, and be emitted from the light emergent portion 130 to the light guide member 100 by refraction of the light. The light exiting portion 130 is configured to reflect incident light in a total reflection manner, which is advantageous to improve optical efficiency.
When the light reflected from the serrations 120 enters the light emitting portion 130, a part of the light is reflected by the light emitting portion 130 and returned to the serrations 120, so that the light entering from the side surface of the light guide member 100 is reflected a plurality of times and propagates to the middle portion of the light guide member 100, and the light is emitted from the middle portion of the light emitting portion 130.
It should be noted that, for the propagation path of the light incident from the second light incident portion 110 'by the second light source 200', reference may be made to the description of fig. 3, and details are not repeated herein.
As shown in fig. 3, the serrations 120 may further include a plurality of serrations 121 arranged in the axial direction of the light guide member 100, each serration 121 including a first surface 1211 and a second surface 1212 for reflecting light incident on the serrations 120. In the plurality of teeth 121, at least one of the first surface 1211 and the second surface 1212 has a plurality of different inclination angles. For example, but not limited to, in the case of only the first light source 200, the included angles α between the first surfaces 1211 of the respective serrations and the axial direction x of the light guide member 100 may each be 82 °, and the included angle β between the second surfaces 1212 and the axial direction x of the light guide member 100 may range from 0 ° to 50 °; in the case of only the second light source 200', an angle α between the first surface 1211 of each serration and the axial direction x of the light guide member 100 may range from 0 ° to 50 °, and angles β between the second surface 1212 and the axial direction x of the light guide member 100 may all be 82 °; in the case where both the first light source 200 and the second light source 200' are present, an angle α between the first surface 1211 of each serration and the axial direction x of the light-guiding member 100 may range from 0 ° to 50 °, and an angle β between the second surface 1212 and the axial direction x of the light-guiding member 100 may range from 0 ° to 50 °. Therefore, when the light reflected by the sawtooth part 120 exits from the light exit part 130, the light exit angle is multiple, the uniformity of the exiting light is improved, and the dark area existing in the prior art is eliminated.
In the example shown in fig. 1 to 3, the plurality of serrations 121 of the serration part 120 are continuously arranged at the top of the light guide body 140 in the axial direction of the light guide body 140. But not limited thereto, the plurality of serrations 121 of the serration part 120 may be intermittently arranged at the top of the light guide body 140 in the axial direction of the light guide body 140, and in this case, a portion of the top of the light guide body 140, at which the serration 121 is not provided, may be configured to reflect light incident thereon to the light exit part 130 in a total reflection manner and to be totally reflected again at the light exit part 130, whereby optical efficiency may be improved while allowing light incident from the side of the light guide body 140 to travel toward the middle portion.
In one example, the first light incident portion 110, the second light incident portion 110', the sawtooth portion 120, the light exiting portion 130, and the light guide body 140 may be integrally formed.
In one example, the light guide member 100 may be made of a light-transmitting material, such as, but not limited to, transparent glass, resin, or plastic material, such as transparent PC (Polycarbonate), PMMA (polymethyl methacrylate), or the like.
Although fig. 2 to 3 show the light guide body 140 as a partial cylinder, it may have any other suitable shape such as a prism, and may be curved.
According to an embodiment of the present invention, there is also provided a license plate lamp 10 including the light guide member 100 as described above, and at least one light source opposite to the at least one light incident portion of the light guide member 100, so that the at least one light incident portion receives incident light from the at least one light source.
According to an embodiment of the present invention, there is also provided a vehicle including the light guide member 100 as described above, or the license plate lamp 10 as described above.
It should be noted that the light guide member according to the embodiment of the present application is not limited to be used in a license plate lamp, and may be used in combination with other types of light sources and applied to any other lighting devices or signal indication devices.
The present invention is not limited to the above configuration, and various other modifications may be adopted. While the invention has been described with respect to a limited number of embodiments, those skilled in the art, having benefit of this disclosure, will appreciate that other embodiments can be devised which do not depart from the scope of the invention as disclosed herein. Accordingly, the scope of the present invention should be limited only by the attached claims.
Claims (9)
1. A light guide member (100), characterized in that the light guide member (100) comprises a light guide body (140) and at least one light entry portion, wherein:
the at least one light incident part is positioned at the side part of the light guide body (140), is connected with the light guide body (140) and is used for receiving incident light from at least one light source opposite to the at least one light incident part;
the light guiding body (140) comprises:
a serration (120) located on top of the light guiding body (140), the serration (120) comprising a plurality of serrations (121), each serration (121) of the plurality of serrations (121) comprising a first surface (1211) and a second surface (1212) for reflecting the incident light from the at least one light incoming portion to a light outgoing portion (130), and of the plurality of serrations (121) at least one of the first surface (1211) and the second surface (1212) having a plurality of different inclination angles;
and a light emitting portion (130) that faces the serration (120) and emits reflected light from the serration (120).
2. The light guide member (100) according to claim 1, wherein the plurality of saw teeth (121) are arranged continuously or intermittently in the axial direction of the light guide body (140).
3. A light guide member (100) as defined in claim 2, wherein at least one of the first surface (1211) and the second surface (1212) has an inclination angle in a range of 0 ° to 50 ° with respect to an axial direction of the light guide member (100).
4. The light guide member (100) as claimed in claim 1, wherein the light exiting part (130) is further configured to totally reflect the incident light from the at least one light entering part to the serration part (120), and exit from the light exiting part (130) after being reflected again by the serration part (120).
5. A light guide member (100) as claimed in claim 1, wherein the at least one light incident portion has a columnar shape and is formed by joining a plurality of facets.
6. A light guide member (100) as claimed in any one of claims 1 to 5, wherein the at least one light incident portion and the light guide body (140) are integrally formed.
7. A light guide member (100) as defined in any one of claims 1 to 5, wherein the light guide body (140) is a partial cylinder having a flattened surface (141) at the top, the serrations (120) being located on the surface (141).
8. A license plate lamp (10), comprising:
a light guide member (100) according to any one of claims 1 to 7; and
at least one light source opposite to the at least one light incident portion of the light guide member (100) such that the at least one light incident portion receives incident light from the at least one light source.
9. A vehicle, characterized by comprising a light guide (100) according to any one of claims 1 to 7, or a license plate lamp (10) according to claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022430402.9U CN214409371U (en) | 2020-10-27 | 2020-10-27 | Light guide component, license plate lamp and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022430402.9U CN214409371U (en) | 2020-10-27 | 2020-10-27 | Light guide component, license plate lamp and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214409371U true CN214409371U (en) | 2021-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022430402.9U Active CN214409371U (en) | 2020-10-27 | 2020-10-27 | Light guide component, license plate lamp and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214409371U (en) |
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2020
- 2020-10-27 CN CN202022430402.9U patent/CN214409371U/en active Active
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