CN215112436U - Light guide assembly and light emitting device - Google Patents
Light guide assembly and light emitting device Download PDFInfo
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- CN215112436U CN215112436U CN202121679097.5U CN202121679097U CN215112436U CN 215112436 U CN215112436 U CN 215112436U CN 202121679097 U CN202121679097 U CN 202121679097U CN 215112436 U CN215112436 U CN 215112436U
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Abstract
The utility model provides a leaded light subassembly and illuminator, the utility model discloses a leaded light subassembly includes spotlight spare and leaded light spare that the light transmission route along the light source arranged in proper order, wherein, spotlight spare can assemble the light that the light source sent to the transmission of leaded light spare, the leaded light spare can receive the light that spotlight spare assembles, and jets out light from the light-emitting part of leaded light spare, and spotlight spare adopts the PC material, one kind in glass and the silica gel is made, one kind in leaded light spare adopted PMMA and the glass is made. Leaded light subassembly, through being divided into spotlight spare and leaded light spare two parts with traditional leaded light strip, both can adopt different materials to make respectively, and be convenient for through the material combination of difference to be favorable to improving self performance.
Description
Technical Field
The utility model relates to a light transmission technical field, in particular to leaded light subassembly. And simultaneously, the utility model discloses still relate to an use this leaded light subassembly's illuminator.
Background
The signal lamp of current vehicle when realizing complicated linear molding, can appear that optical system designs more complicacy, and space restriction is more, some series of problems such as heat dissipation design complicacy. With the increasing diversification of signal lamp models, the optical scheme of the light guide strip structure becomes the first choice of more and more customers and optical designers.
However, the traditional light guide strip has obvious defects when transmitting light, and mainly has the following defects:
(1) the lighting effect is single, the third dimension is poor, the chromaticity difference of the head end and the tail end of the light guide strip is large, the lighting effect of the whole lamp is influenced, and the delicate perception of the vehicle is influenced.
(2) The whole luminous efficacy of leaded light strip is low, needs a plurality of high power light sources to carry out the leaded light, arouses the light conductor ablation easily, needs big heat dissipation space and heat radiation structure for this reason, influences the design of other spare parts of whole lamp and the model design of whole lamp.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention is directed to a light guide assembly, which is advantageous for improving the defects of the existing light guide strip.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a light guide assembly includes a light collecting member and a light guide member sequentially arranged along a light transmission path of a light source;
the light gathering part is used for gathering the light emitted by the light source and transmitting the gathered light to the light guide part;
the light guide part is used for receiving the light rays converged by the light gathering part and emitting the light rays from the light emitting part of the light guide part;
the light gathering piece is made of one of a PC material, glass and silica gel, and the light guiding piece is made of one of PMMA and glass.
Furthermore, the light gathering piece is provided with a first refraction part and a second refraction part which are respectively arranged at two ends of the light gathering piece; the first refraction portion is disposed toward the light source.
Furthermore, a groove is formed in the end face of the light gathering part; the bottom wall and the peripheral wall of the groove form the first refraction part; the second refraction part comprises a refraction surface formed on the light gathering part.
Furthermore, a total reflection part is arranged on the outer wall of the light gathering piece; the total reflection part comprises a first conical surface and a second conical surface which are sequentially arranged along the light transmission path; the large diameter ends of the first conical surface and the second conical surface are connected together.
Further, the light-gathering part comprises a fresnel lens or a collimating lens.
Further, the high temperature resistance of the light gathering part is higher than that of the light guide part.
Further, the refractive index of the light gathering part is higher than that of the light guide part.
Further, the light transmittance of the light guide member is higher than that of the light gathering member.
Further, the light guide comprises a light guide strip; an outer convex part is formed on the outer wall of the light guide strip; the outer convex part is used for installing the light guide strip on an external carrier.
Compared with the prior art, the utility model discloses following advantage has:
(1) leaded light subassembly, through being divided into spotlight spare and leaded light spare two parts with traditional leaded light strip, both can adopt different materials to make respectively, and be convenient for through the material combination of difference to be favorable to improving self performance.
(2) Set up first refraction portion and second refraction portion at the both ends of spotlight piece to make first refraction portion arrange towards the light source, be favorable to the convergence and the outgoing of light.
(3) The groove is formed in the end face of the light gathering piece, the bottom wall and the peripheral wall of the groove form a first refraction portion, and the second refraction portion comprises a refraction surface formed on the light gathering piece, so that light can be converged and diffused conveniently.
(4) The total reflection part is formed on the outer wall of the light gathering part and comprises a first conical surface and a second conical surface which are connected together through a large-diameter end, and the transmission efficiency of light rays is improved.
(5) The light-gathering piece adopts a Fresnel lens or a collimating lens, is the existing lens and has lower cost.
(6) The high temperature resistance of the light gathering part is higher than that of the light guide part, and the light gathering part is arranged close to the light source relative to the light guide part, so that the light gathering part is prevented from being ablated by high temperature to influence the light transmission efficiency and the transmission effect.
(7) The refractive index of the light gathering part is higher than that of the light guiding part, so that light emitted by the light source can be gathered, and the light transmission efficiency can be improved.
(8) The light transmittance of the light guide piece is higher than that of the light gathering piece, and the light guide piece is far away from the light source relative to the light gathering piece and is arranged, so that the light transmission efficiency is further improved.
(9) The light guide part adopts the light guide strip, and the outer convex part is arranged on the light guide strip, so that the light guide part is convenient to install on an external carrier.
Another object of the present invention is to provide a light emitting device, which includes a housing, and a light source disposed in the housing, wherein the light guide assembly is disposed on a light transmission path of the light source.
Illuminator and aforementioned leaded light subassembly have the same beneficial effect for prior art, no longer describe herein.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of a light guide assembly according to a first embodiment of the present invention in an application state;
FIG. 2 is a schematic view of the cooling plate of FIG. 1 from another perspective;
fig. 3 is a schematic view of an overall structure of a light guide assembly according to a first embodiment of the present invention;
fig. 4 is a schematic view of a light guide assembly according to a first embodiment of the present invention showing transmitted light;
fig. 5 is a schematic diagram of another light guide assembly according to the first embodiment of the present invention showing transmitted light.
Description of reference numerals:
1. a light gathering member; 2. a light guide; 3. a light source; 4. a circuit board; 5. a heat dissipation plate;
101. a groove; 102. a refracting surface; 103. a first tapered surface; 104. a second tapered surface;
1011. a bottom wall; 1012. a peripheral wall;
201. an outer convex portion.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless expressly limited otherwise. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example one
The present embodiment relates to a light guide assembly, which is shown in fig. 1 to 2 and fig. 3 to 5, and mainly includes a light gathering member 1 and a light guide member 2, wherein the light gathering member 1 and the light guide member 2 are sequentially arranged along a light transmission path of a light source 3. The light gathering member 1 is configured to gather light emitted by the light source 3 and transmit the gathered light to the light guiding member 2, and the light guiding member 2 is configured to receive the light gathered by the light gathering member 1 and emit the light from the light emitting portion of the light guiding member 2.
In order to better understand the light guide assembly of the present embodiment, the arrangement of the light sources 3 will be described below with reference to fig. 1 and 2. The light source 3 is generally disposed on the circuit board 4, and the mounting structure thereof can refer to the existing structure, for example, a plurality of heat dissipation plates 5 can be disposed on the mounting plate of the circuit board 4 to improve the heat dissipation effect.
Based on the above structural description, an exemplary structure of the light guide assembly of the present embodiment is shown in fig. 3, and the light gathering member 1 has a first refraction portion and a second refraction portion disposed at two ends thereof, and the first refraction portion is disposed toward the light source 3, as shown in fig. 3, the first refraction portion is formed at a lower portion of the light gathering member 1, and the second refraction portion is formed at an upper portion of the light gathering member 1.
As a preferred possible embodiment, the groove 101 is formed on the lower end surface of the light gathering member 1, the bottom wall 1011 and the peripheral wall 1012 of the groove 101 form the first refraction portion, and the middle portion of the bottom wall 1011 protrudes downward relative to the edge, so as to facilitate the convergence of all the light rays emitted from the light source 3 and improve the utilization rate of the light source 3. The second refraction portion includes a refraction surface 102 formed on the light-gathering member 1, such as a plane surface in the present embodiment.
In order to improve the light condensing efficiency, the light condensing member 1 is provided with a total reflection portion on the outer wall, specifically, the total reflection portion includes a first tapered surface 103 and a second tapered surface 104 which are sequentially arranged along the light transmission path, and the large diameter ends of the first tapered surface 103 and the second tapered surface 104 are connected together, so that the light refracted to the first tapered surface 103 and the second tapered surface 104 is totally reflected to the second refraction portion and is emitted.
It should be noted that, in addition to the structure shown in fig. 3, the light gathering member 1 in the present embodiment may also adopt an existing fresnel lens, collimating lens or other type of lens, and its main function is to gather the light emitted from the light source 3 and transmit the gathered light to the light guiding member 2.
The light guide member 2 in this embodiment preferably adopts a light guide strip, which is in a strip shape, and is beneficial to realizing a complex shape. A plurality of optical teeth are formed on the light guide member 2, the arrangement of the optical teeth can refer to the existing structure, for example, in fig. 1, the optical teeth are sequentially arranged along the length direction of the light guide member 2 to distribute the light entering the light guide member 2, and the distributed light is conveniently emitted from the light emitting part of the light guide member 2.
For the convenience of installation, the outer wall of the light guide strip is formed with an outer convex portion 201, which can be used to install the light guide strip on an external carrier, for example, the outer convex portion 201 and the external carrier can be connected by a bolt assembly or a screw. It should be understood here that the number of the convex portions 201 is not limited to 1 in fig. 1, but may be other numbers, such as three, five, etc., and each convex portion 201 is preferably arranged at intervals along the length direction of the light guide bar. In addition, the fixed mode of leaded light strip still can refer to current structure, and this embodiment is no longer detailed.
In the above structure, the light-collecting member 1 is made of one of PC (polycarbonate), glass and silica gel, and the light-guiding member 2 is made of one of PMMA (polymethyl methacrylate) and glass.
As a feasible implementation manner, when selecting the material, the high temperature resistance of the light gathering member 1 can be higher than that of the light guiding member 2, and since the light gathering member 1 is disposed close to the light source 3 relative to the light guiding member 2 and the temperature of the light source 3 is higher, the light gathering member 1 can be prevented from being ablated by high temperature, so as to avoid affecting the light transmission efficiency and the transmission effect.
As another possible implementation manner, when selecting the material, the refractive index of the light collecting member 1 may be higher than that of the light guiding member 2, which is beneficial to collect the light emitted from the light source 3 and is beneficial to improving the light transmission efficiency.
As another possible implementation manner, when selecting the material, the light transmittance of the light guide 2 can be higher than that of the light gathering member 1, and the light guide 2 is disposed away from the light source 3 relative to the light gathering member 1, which is beneficial to further improving the light transmission efficiency.
In a preferred embodiment, the light gathering member 1 is preferably made of PC material, and the light guiding member 2 is preferably made of PMMA material, so that the light gathering member 1 is mainly used to improve the efficiency of the light source 3, and the light guiding member 2 is used to take charge of the overall lighting effect, and the cooperation of the two can improve the defects that the existing light guiding member is made of single material and is easy to have low optical efficiency and easy to disperse, thereby being beneficial to the realization of more excellent light emitting performance of the light guiding assembly.
In the preferred embodiment, the light-gathering member 1 has better high temperature resistance than the light-guiding member 2, so that even if it is disposed close to the light source 3, it can prevent ablation and deformation to improve the light transmission efficiency, thereby being beneficial to reducing the color difference between the near light portion and the light-emitting portion, and improving the lighting effect and the overall sense of fineness of the whole lamp. Compared with the existing light guide strip, the light guide strip can reduce the requirements of a heat dissipation space and a heat dissipation structure, and is beneficial to the design of other parts and the overall shape of other light-emitting devices.
In addition, the light guide member 2 is made of PMMA material, so that the dispersion is small, the consistency of light color of the light emitted by the light guide member 2 is ensured, and the color difference of light can be reduced; in addition, the PMMA material has high transmittance, and can effectively reduce the transmission loss in the light guide member 2.
Referring to the light guide assembly shown in fig. 4, the transmission path of the light is described as follows:
the wide-angle light emitted by the light source 3 is refracted through the bottom wall 1011 of the light gathering member 1, and then is totally reflected through the second taper surface 104, and the totally reflected light is transmitted to the light guiding member 2 through the refraction surface 102, and then is emitted through secondary distribution in the light guiding member 2.
The light of the middle part that the light source 3 sent takes place to refract through the perisporium 1012 of spotlight spare 1, then takes place the total reflection through first toper face 103 light, and the light of total reflection is in transmitting light to light guide 2 after passing through refraction face 102, then carries out the secondary distribution through light guide 2 and jets out.
The light of the middle small angle of light that light source 3 sent takes place the refraction through the diapire 1011 of light-collecting part 1, transmits light to light-guiding part 2 in through refraction face 102 again, then carries out the secondary distribution through light-guiding part 2 and jets out.
All light of light source 3 assemble through spotlight piece 1, because spotlight piece 1 adopts the high refractive index material, critical angle can be changed into the total reflection face with first conical surface 103 and second conical surface 104 for a short time, 3 wide-angle light of light source can take place the total reflection through the first conical surface 103 and the second conical surface 104 of spotlight piece 1, be favorable to assembling all light that light source 3 sent, then transmit to leaded light 2 in, and 3 low-angle light of light source can directly kick into leaded light 2 in, the light that is favorable to light source 3 all gets into leaded light 2 in, and can improve light source 3's utilization ratio, thereby do benefit to the power that reduces light source 3.
The light guide assembly shown in fig. 5 and the light guide assembly shown in fig. 4 have substantially the same structure, and the main difference is that the shape of the groove 101 is different, and the transmission path of the transmitted light can refer to the arrow shown in fig. 5, which is similar to the light guide assembly shown in fig. 4, and will not be described in detail herein.
In the light guide assembly of the embodiment, the traditional light guide strip is divided into the light gathering part 1 and the light guide part 2, which can be made of different materials respectively, so that the light emitting performance of the light guide assembly is improved by combining different material characteristics; in addition, this light guide assembly can cooperate other optical components such as interior grading lens, speculum, thick wall lens etc. but not limited to these optical components to can make the design more nimble and the variety, thereby promote exquisite perception.
Example two
Still referring to fig. 1 and 2, the light guide device of the present embodiment includes a housing not shown in the drawings, and a light source 3 disposed in the housing, and a light guide assembly according to the first embodiment is disposed on a light transmission path of the light source 3.
It should be noted that, when the light guide device is applied to a light guide device, the light gathering member 1 can be fixed by being clamped by a clamping structure disposed in the housing, and the light guide member 2 can be fixed in the manner described in the first embodiment.
The light guide device of this embodiment, through adopting the light guide assembly of embodiment one, owing to set up the components of a whole that can function independently with light gathering 1 and light guide 2, therefore both can adopt different materials to can make the different performance combinations of different materials, and improve the performance of light guide assembly, and then improve light guide device's the effect of lighting, it is applied to the vehicle, is favorable to improving the exquisite sense of vehicle.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A light guide assembly, comprising:
the light guide assembly comprises a light gathering part (1) and a light guide part (2) which are sequentially arranged along a light transmission path of the light source (3);
the light gathering part (1) is used for gathering the light emitted by the light source (3) and transmitting the gathered light to the light guide part (2);
the light guide piece (2) is used for receiving the light rays converged by the light converging piece (1) and emitting the light rays from a light emitting part of the light guide piece (2);
the light gathering part (1) is made of one of a PC material, glass and silica gel, and the light guiding part (2) is made of one of PMMA and glass.
2. A light guide assembly according to claim 1, wherein:
the light gathering piece (1) is provided with a first refraction part and a second refraction part which are respectively arranged at two ends of the light gathering piece;
the first refraction portion is arranged toward the light source (3).
3. A light guide assembly according to claim 2, wherein:
a groove (101) is formed in the end face of the light gathering piece (1);
a bottom wall (1011) and a peripheral wall (1012) of the recess (101) form the first refraction portion;
the second refraction part comprises a refraction surface (102) formed on the light gathering piece (1).
4. A light guide assembly according to claim 2, wherein:
the outer wall of the light gathering piece (1) is provided with a total reflection part;
the total reflection part comprises a first conical surface (103) and a second conical surface (104) which are sequentially arranged along the light transmission path;
the large diameter ends of the first tapered surface (103) and the second tapered surface (104) are connected together.
5. A light guide assembly according to claim 1, wherein:
the light-gathering piece (1) comprises a Fresnel lens or a collimating lens.
6. A light guide assembly according to claim 1, wherein:
the high temperature resistance of the light gathering part (1) is higher than that of the light guide part (2).
7. A light guide assembly according to claim 1, wherein:
the refractive index of the light gathering part (1) is higher than that of the light guide part (2).
8. A light guide assembly according to claim 1, wherein:
the light transmittance of the light guide part (2) is higher than that of the light gathering part (1).
9. A light guide assembly according to any one of claims 1-8, wherein:
the light guide (2) comprises a light guide strip;
an outer convex part (201) is formed on the outer wall of the light guide strip;
the outer convex part (201) is used for installing the light guide strip on an external carrier.
10. A light emitting device comprising a housing, and a light source (3) disposed in the housing, characterized in that:
a light guide assembly according to any one of claims 1 to 9 is arranged on a light transmission path of the light source (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679097.5U CN215112436U (en) | 2021-07-22 | 2021-07-22 | Light guide assembly and light emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679097.5U CN215112436U (en) | 2021-07-22 | 2021-07-22 | Light guide assembly and light emitting device |
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| CN215112436U true CN215112436U (en) | 2021-12-10 |
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| CN202121679097.5U Active CN215112436U (en) | 2021-07-22 | 2021-07-22 | Light guide assembly and light emitting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111559A (en) * | 2021-03-17 | 2022-09-27 | 华域视觉科技(上海)有限公司 | Light guide and vehicle lamp module |
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2021
- 2021-07-22 CN CN202121679097.5U patent/CN215112436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111559A (en) * | 2021-03-17 | 2022-09-27 | 华域视觉科技(上海)有限公司 | Light guide and vehicle lamp module |
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