CN214252643U - Light guide assembly - Google Patents
Light guide assembly Download PDFInfo
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- CN214252643U CN214252643U CN202021784435.7U CN202021784435U CN214252643U CN 214252643 U CN214252643 U CN 214252643U CN 202021784435 U CN202021784435 U CN 202021784435U CN 214252643 U CN214252643 U CN 214252643U
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- light
- sheet
- light guide
- sheet body
- diffuser
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Abstract
The utility model relates to a light guide component, which comprises a light guide sheet and a light-diffusing sheet, wherein the light guide sheet is arranged at one end of the light-diffusing sheet and is fixedly connected with the light-diffusing sheet; the upper end face of the light guide sheet is provided with a first reflecting layer. Compared with the prior art, the utility model discloses utilize the astigmatism piece to carry out the scattering to the light that shines through the leaded light piece and the light of reflection, realize that the surface of astigmatism piece evenly sends light.
Description
Technical Field
The utility model relates to a leaded light technical field, particularly, in particular to leaded light subassembly.
Background
In the prior art, as shown in fig. 1 to 3, an L-shaped light guide bar is embedded in a corner of a housing, and since a PCBA position is located in the housing, a local shadow position of the L-shaped light guide bar is not within a direct projection range of an LED, that is, a lower end of the L-shaped light guide bar does not irradiate light; the light guide strip cannot uniformly emit light; moreover, because the RBG LED is composed of tricolor light, when the tricolor light passes through the medium of the light guide strip, if dispersion phenomenon occurs, local color cast phenomenon may occur on the light emergent surface, and especially the white light effect is more obvious; it is necessary to solve these problems.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, an object of the present invention is to provide a light guide assembly for uniformly emitting light on the surface of a light diffuser.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a light guide assembly comprises a light guide sheet and a light diffuser, wherein the light guide sheet is arranged at one end of the light diffuser and is fixedly connected with the light diffuser; the upper end face of the light guide sheet is provided with a first reflecting layer.
The utility model has the advantages that: part of the light is irradiated to the upper end part of the light-diffusing piece through the light-guiding piece; part of light rays irradiate on the first reflecting layer, and are reflected to the lower end part of the light-diffusing sheet; the light-diffusing sheet scatters the light irradiated by the light-guiding sheet and the reflected light, so that the surface of the light-diffusing sheet uniformly emits light.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the light guide sheet comprises a first sheet body and a second sheet body, the first sheet body is arranged at one end, far away from the diffuser, of the second sheet body, and the first sheet body and the second sheet body are integrally formed; the second sheet body is fixedly connected with the light diffuser in an adhering mode.
The beneficial effect of adopting the further scheme is that: the second sheet body is fixedly connected with the light-diffusing sheet in an adhesion mode through a dual-injection molding process, and the connection stability of the light guide sheet and the light-diffusing sheet is improved.
Furthermore, the upper end face of the first sheet body is an inclined face, and the first reflecting layer is arranged on the upper end face of the first sheet body.
The beneficial effect of adopting the further scheme is that: the first reflecting layer can accurately reflect part of light irradiated on the first reflecting layer and reflect the part of light to the lower end part of the light-diffusing sheet, so that the surface of the light-diffusing sheet can uniformly emit light.
Further, the lower terminal surface of first lamellar body is provided with the cell body that the opening is decurrent, place LED in the cell body.
The beneficial effect of adopting the further scheme is that: the light is vertically incident into the light guide plate, and the dispersion of the three primary colors caused by different refractive indexes is avoided.
Furthermore, the lower end face of the second sheet body is an inclined face, and a second reflecting layer is arranged on the lower end face of the second sheet body.
The beneficial effect of adopting the further scheme is that: the second sheet body can accurately reflect part of light reflected by the first reflecting layer to the lower end part of the light diffuser, and the light reflected by the second reflecting layer can enhance the light intensity of the lower end part of the light diffuser, so that the surface of the light diffuser can uniformly emit light.
Furthermore, the thickness of the second sheet body is gradually reduced from one end far away from the light diffuser to one end close to the light diffuser, and the transverse section of the second sheet body is of a conical structure.
The beneficial effect of adopting the further scheme is that: the LED lamp is beneficial to collecting more light of the LED and improving the brightness.
Further, the light guide plate is made of polycarbonate or polymethyl methacrylate.
Further, the light-diffusing sheet is made of transparent plastic added with light-diffusing powder.
Furthermore, the light diffuser is of an inverted L-shaped structure and is fixedly connected with the side surface and the upper end surface of the second sheet body; the upper end of the light diffuser is close to the first reflecting layer.
The beneficial effect of adopting the further scheme is that: the surface of the light-diffusing piece can uniformly emit light; can be applied to the light-diffusing sheets with different structures.
Furthermore, the connection surface of the light diffuser and the second sheet body is in a sawtooth shape.
The beneficial effect of adopting the further scheme is that: the light guide plate is beneficial to scattering the light irradiated or reflected by the light guide plate, and the bonding effect of the light guide plate and the light diffuser plate can be enhanced.
Drawings
FIG. 1 is a front view of a prior art housing and light guide bar;
FIG. 2 is a front view of a prior art circuit board and LED;
FIG. 3 is a schematic diagram of a prior art circuit board and LED implementation;
fig. 4 is a schematic structural diagram of a light guide assembly according to the present invention;
FIG. 5 is a cross-sectional view AA in FIG. 4;
fig. 6 is a schematic view of an embodiment of a light guide assembly according to the present invention;
fig. 7 is a schematic view of a second embodiment of a light guide assembly according to the present invention;
fig. 8 is a schematic diagram of three embodiments of a light guide assembly according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the light guide plate comprises a light guide plate 1.1, a first plate body 1.2, a second plate body 1.3 and a groove body;
2. a light diffuser 3, a first reflective layer 4, a second reflective layer;
5. casing, 6, leaded light strip, 7, circuit board, 8, LED.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 4 to 8, the arrows in fig. 6 to 8 are light irradiation or reflection paths.
A light guide assembly comprises a light guide sheet 1 and a light diffuser 2, wherein the light guide sheet 1 is arranged at one end of the light diffuser 2 and is fixedly connected with the light diffuser 2; the upper end face of the light guide sheet 1 is provided with a first reflecting layer 3.
The LED 8 is arranged at the lower end part of the light guide sheet 1, the LED emits light, and when light enters the light guide sheet 1, part of the light is irradiated to the upper end part of the light diffuser sheet 2 through the light guide sheet 1; part of the light rays irradiate on the first reflecting layer 3, and the part of the light rays are reflected and reflected to the lower end part of the light-diffusing sheet 2; the light-diffusing sheet 2 diffuses the light irradiated by the light-guiding sheet 1 and the reflected light, so that the LED 8 light source is efficiently utilized, and the surface of the light-diffusing sheet 2 uniformly emits light;
moreover, the light guide plate 1 is integrally formed by secondary forming, so that the assembly is easy, the reliability is good, and the mass production is good.
In the above embodiment, the light guide sheet 1 includes the first sheet 1.1 and the second sheet 1.2, the first sheet 1.1 is disposed at an end of the second sheet 1.2 away from the diffuser 2, and the first sheet 1.1 and the second sheet 1.2 are integrally formed; the second sheet body 1.2 is fixedly connected with the light diffuser 2 in an adhesion manner.
The second sheet body 1.2 is fixedly connected with the light-diffusing sheet 2 in an adhesion manner through a dual-injection molding process, so that the connection stability of the light guide sheet 1 and the light-diffusing sheet 2 is improved.
In the above embodiment, as shown in fig. 7, the upper end surface of the first sheet 1.1 is an inclined surface, and the first reflective layer 3 is disposed on the upper end surface of the first sheet 1.1; the upper end face of the first sheet body 1.1 is inclined downwards from one end close to the second sheet body 1.2 to one end far away from the second sheet body 1.2.
The upper end face of the first sheet body 1.1 is an inclined face, the first reflection layer 3 is also obliquely arranged, part of light irradiated on the first reflection layer 3 can be accurately reflected and reflected to the lower end part of the light diffuser 2, the light diffuser 2 scatters the reflected light, and the light diffuser 2 can uniformly emit light on the surface.
In the above embodiment, a groove body 1.3 with a downward opening is arranged on the lower end surface of the first sheet body 1.1, and the LED 8 is placed in the groove body 1.3. The tank body 1.3 is semicircular.
The LED 8 is close to a point light source, the LED 8 is arranged in the semicircular groove body 1.3, when light emitted by the LED is emitted to the light guide sheet 1, the light vertically enters the light guide sheet 1, and dispersion of three primary colors caused by different refractive indexes is avoided.
In the above embodiment, as shown in fig. 8, the lower end surface of the second sheet body 1.2 is an inclined surface, and a second reflective layer 4 is disposed on the lower end surface of the second sheet body 1.2; the lower end face of the second sheet body 1.2 is inclined downwards from one end far away from the light diffuser 2 to one end close to the light diffuser 2.
The lower end face of the second sheet body 1.2 is an inclined plane, the second reflecting layer 4 is also obliquely arranged, partial light rays reflected by the first reflecting layer 3 can be accurately reflected and reflected to the lower end part of the light diffuser 2, and the light diffuser 2 scatters the reflected light rays; the light reflected by the second reflecting layer 4 can enhance the light intensity at the lower end of the light diffuser 2, and the light can be uniformly emitted from the surface of the light diffuser 2.
In the above embodiment, the thickness of the second sheet body 1.2 gradually decreases from the end far away from the diffuser 2 to the end near the diffuser 2, and the transverse cross section of the second sheet body 1.2 is in a cone-shaped structure.
The transverse section of the second sheet body 1.2 is of a conical structure, so that more light rays of the LED 8 can be collected, and the brightness of the light is improved.
In the above embodiments, the light guide plate 1 is made of polycarbonate or polymethyl methacrylate.
In the above embodiment, the light diffuser 2 is made of transparent plastic with light diffusing powder added.
In the above embodiment, the diffuser 2 is in an inverted L-shaped structure and is fixedly connected to the side surface and the upper end surface of the second sheet 1.2; the upper end of the light diffuser 2 is close to the first reflecting layer 3.
Part of light rays emitted by the LED 8 are irradiated to the upper end part of the light-diffusing sheet 2 through the light-guiding sheet 1, and part of light rays are reflected to the lower end part of the light-diffusing sheet 2 through the light-guiding sheet 1, so that the light rays are uniformly emitted from the surface of the light-diffusing sheet 2; can be applied to the light-diffusing sheets 2 with different structures; in particular a diffuser 2 in the form of an inverted L-shaped structure.
In the above embodiment, the connection surface between the diffuser 2 and the second sheet 1.2 is zigzag. The light irradiated or reflected by the light guide sheet 1 can be scattered, and the bonding effect of the light guide sheet 1 and the light diffuser sheet 2 can be enhanced.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A light guide assembly, comprising: the LED light source comprises a light guide sheet (1) and a light diffuser sheet (2), wherein the light guide sheet (1) is arranged at one end of the light diffuser sheet (2) and is fixedly connected with the light diffuser sheet (2); the upper end face of the light guide sheet (1) is provided with a first reflecting layer (3).
2. A light guide assembly according to claim 1, wherein: the light guide sheet (1) comprises a first sheet body (1.1) and a second sheet body (1.2), the first sheet body (1.1) is arranged at one end, far away from the light diffuser sheet (2), of the second sheet body (1.2), and the first sheet body (1.1) and the second sheet body (1.2) are integrally formed; the second sheet body (1.2) is fixedly connected with the light diffuser sheet (2) in an adhesion manner.
3. A light guide assembly according to claim 2, wherein: the upper end face of the first sheet body (1.1) is an inclined face, and the first reflecting layer (3) is arranged on the upper end face of the first sheet body (1.1).
4. A light guide assembly according to claim 2, wherein: the lower terminal surface of first lamellar body (1.1) is provided with cell body (1.3) that the opening is decurrent, place LED (8) in cell body (1.3).
5. A light guide assembly according to claim 2, wherein: the lower end face of the second sheet body (1.2) is an inclined face, and a second reflecting layer (4) is arranged on the lower end face of the second sheet body (1.2).
6. A light guide assembly according to claim 2, wherein: the thickness of the second sheet body (1.2) is gradually reduced from one end far away from the light diffuser (2) to one end close to the light diffuser (2), and the transverse section of the second sheet body (1.2) is of a conical structure.
7. A light guide assembly according to claim 1, wherein: the light guide plate (1) is made of polycarbonate or polymethyl methacrylate.
8. A light guide assembly according to any one of claims 2 to 6, wherein: the light diffuser (2) is of an inverted L-shaped structure and is fixedly connected with the side surface and the upper end surface of the second sheet body (1.2); the upper end part of the light diffuser (2) is close to the first reflecting layer (3).
9. A light guide assembly according to claim 8, wherein: the connection surface of the light diffuser (2) and the second sheet body (1.2) is in a sawtooth shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784435.7U CN214252643U (en) | 2020-08-24 | 2020-08-24 | Light guide assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021784435.7U CN214252643U (en) | 2020-08-24 | 2020-08-24 | Light guide assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214252643U true CN214252643U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021784435.7U Active CN214252643U (en) | 2020-08-24 | 2020-08-24 | Light guide assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN214252643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089463A (en) * | 2020-08-24 | 2022-02-25 | 深圳市兆驰数码科技股份有限公司 | Light guide assembly |
-
2020
- 2020-08-24 CN CN202021784435.7U patent/CN214252643U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089463A (en) * | 2020-08-24 | 2022-02-25 | 深圳市兆驰数码科技股份有限公司 | Light guide assembly |
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