CN216814055U - Light guide right-angle bending structure without bright spots - Google Patents
Light guide right-angle bending structure without bright spots Download PDFInfo
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- CN216814055U CN216814055U CN202123364884.3U CN202123364884U CN216814055U CN 216814055 U CN216814055 U CN 216814055U CN 202123364884 U CN202123364884 U CN 202123364884U CN 216814055 U CN216814055 U CN 216814055U
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Abstract
The utility model discloses a light guide right-angle bending structure without bright spots, which comprises a PCB (printed Circuit Board), wherein one side of the surface of the PCB is provided with a light-emitting center, a bar-shaped light guide pipe is arranged on one side of the bottom of the PCB, a right-angle light guide pipe is arranged at one end of the bar-shaped light guide pipe, which is far away from the PCB, the end of the bar-shaped light guide pipe is provided with a total reflection mirror surface which is positioned at the joint between the bar-shaped light guide pipe and the right-angle light guide pipe, the specially processed total reflection mirror surface is arranged at the joint, the total reflection mirror surface is used at the bent part, so that light rays are totally reflected at the position and continuously transmitted to the inside of the right-angle light guide pipe, and compared with the traditional assembly mode of direct transmission, the light guide pipe can obtain better illumination effect, meanwhile, the diffusion patterns are designed on the total reflection surface, so that the bright spots can be further dissipated, the lighting effect is uniform, and the lighting quality is improved.
Description
Technical Field
The utility model relates to the technical field of light guide components, in particular to a light guide right-angle bending structure without bright spots.
Background
The light guide is a structural member for guiding light emitted from the LED from the PCB to the front panel or the emitting position, and the structural member is generally made of PC material or PMMA material, and has a good light guiding performance.
Patent No. CN 2211607Y discloses a light guiding rod, one end of which is equivalent to a convex lens, and collects the scattered light from a common light source according to the optical principle, and the collected light is transmitted with low loss through the middle section of the light guiding rod. The side wall of the middle section of the light guide rod also absorbs light, the other end of the light guide rod also acts as a convex lens, and light transmitted to the other end of the light guide rod is emitted from the other end of the light guide rod.
Such a light guiding rod has the following disadvantages when in use: 1. the LED light source and the light guide technology are used on a large scale by the current automobile lamp, and due to the fact that the installation space of the automobile lamp is limited, the shape of the light guide is required to be formed into a right-angle bending mode frequently, the bright spot phenomenon can occur at the bending position, and the lighting efficiency is affected.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a light guide right-angle bending structure without bright spots, which can effectively solve the problems in the background technology.
In order to realize the purpose, the utility model adopts the technical scheme that:
the utility model provides a light guide right angle of no bright spot structure of buckling, includes the PCB board, luminous center is installed to PCB board surface one side, bar light pipe is installed to PCB board bottom one side, bar light pipe keeps away from PCB board one end and installs right angle type light pipe, the total reflection mirror surface is installed to bar light pipe end, the total reflection mirror surface is located the junction between bar light pipe and the right angle type light pipe, the diffusion decorative pattern has been seted up on total reflection mirror surface.
Further, the light-emitting center is a patch LED; and a patch LED is used as a light emitting center to provide a light source.
Furthermore, the right-angle light guide pipe and the strip-shaped light guide pipe are vertically arranged; the total reflection mirror surface is arranged at the folding angle, so that a better bright effect can be obtained.
Compared with the prior art, the utility model has the following beneficial effects: external power supply equipment is connected to the PCB board, for luminous center power supply after handling, luminous center is paster LED, produce the effect that light shines and plays the light source after the circular telegram, it sends along bar light pipe to be bright, and shine into right angle type light pipe at last inside, install the total reflection mirror surface through special processing in the junction, the department of buckling uses the total reflection mirror surface can let light take place the total reflection here and continue to right angle type light pipe internal propagation, compare in the traditional mode of assembly of direct propagation, can obtain better illuminating effect, design diffusion decorative pattern on the total reflection surface simultaneously, can further play the dissipation bright spot, make its even purpose of lighting effect, and the illumination quality is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of a light guide right-angle bending structure without bright spots according to the present invention.
FIG. 2 is a schematic diagram of a total reflection mirror structure of a light guide right-angle bending structure without bright spots according to the present invention.
In the figure: 1. a PCB board; 2. a luminescent center; 3. a strip light pipe; 4. a right-angle light pipe; 5. a full-emission mirror surface; 501. and diffusing the pattern.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in fig. 1-2, a light guide right angle bending structure without bright spots, includes a PCB board 1, a light emitting center 2 is installed on one side of the surface of the PCB board 1, a bar light guide pipe 3 is installed on one side of the bottom of the PCB board 1, a right angle light guide pipe 4 is installed on one end of the bar light guide pipe 3, which is far away from the PCB board 1, a total reflection mirror surface is installed at the end of the bar light guide pipe 3, the total reflection mirror surface is located at the joint between the bar light guide pipe 3 and the right angle light guide pipe 4, and a diffusion pattern 501 is provided on the surface of the total reflection mirror surface.
Wherein, the light-emitting center 2 is a patch LED; a patch LED is used as the light emitting center 2 to provide a light source.
Wherein the right-angle light guide pipe 4 and the strip-shaped light guide pipe 3 are vertically arranged; the total reflection mirror 5 is arranged at the folding angle, so that a better bright effect can be obtained.
The utility model is to be noted that, the utility model is a light guide right-angle bending structure without bright spots, when in use, the PCB board 1 is connected with an external power supply device, and supplies power to the light emitting center 2 after being processed, the light emitting center 2 is a patch LED, and lights up to function as a light source after being powered on, the light is emitted along the strip light guide 3 and finally shines into the right-angle light guide 4, a specially processed total reflection mirror surface is installed at the connection position, and the light can be totally reflected at the position and continuously propagated into the right-angle light guide 4 by using the total reflection mirror surface at the bending position.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a light guide right angle of no bright spot structure of buckling, includes PCB board (1), its characterized in that, luminous center (2) are installed to PCB board (1) surface one side, bar light pipe (3) are installed to PCB board (1) bottom one side, bar light pipe (3) are kept away from PCB board (1) one end and are installed right angle type light pipe (4), bar light pipe (3) end is installed the total reflection mirror surface, the total reflection mirror surface is located the junction between bar light pipe (3) and right angle type light pipe (4), diffusion pattern (501) have been seted up on the total reflection mirror surface.
2. The light guide right-angle bending structure without the bright spots of claim 1, wherein: the light-emitting center (2) is a patch LED.
3. The light guide right-angle bending structure without the bright spots of claim 1, wherein: the right-angle light guide pipe (4) and the strip light guide pipe (3) are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364884.3U CN216814055U (en) | 2021-12-29 | 2021-12-29 | Light guide right-angle bending structure without bright spots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123364884.3U CN216814055U (en) | 2021-12-29 | 2021-12-29 | Light guide right-angle bending structure without bright spots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216814055U true CN216814055U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123364884.3U Active CN216814055U (en) | 2021-12-29 | 2021-12-29 | Light guide right-angle bending structure without bright spots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216814055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115826125A (en) * | 2022-12-21 | 2023-03-21 | 重庆大学 | Right-angle bending structure of bamboo-structured light pipe |
-
2021
- 2021-12-29 CN CN202123364884.3U patent/CN216814055U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115826125A (en) * | 2022-12-21 | 2023-03-21 | 重庆大学 | Right-angle bending structure of bamboo-structured light pipe |
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