CN218001369U - Light guide member and light emitting assembly using the same - Google Patents
Light guide member and light emitting assembly using the same Download PDFInfo
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- CN218001369U CN218001369U CN202222231497.0U CN202222231497U CN218001369U CN 218001369 U CN218001369 U CN 218001369U CN 202222231497 U CN202222231497 U CN 202222231497U CN 218001369 U CN218001369 U CN 218001369U
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Abstract
The utility model discloses a leaded light spare and use its light-emitting component, include: the light source comprises a light-gathering part, a reflecting part, a conducting part and a light-emitting surface, wherein the light-gathering part is used for gathering light emitted by the light source, the reflecting part is used for reflecting the light reflected by the light-gathering part, the conducting part is used for conducting the light reflected by the reflecting part, and the light-emitting surface is used for projecting the light conducted by the conducting part; the reflecting part comprises a first reflecting surface, a second reflecting surface and a third reflecting surface which are sequentially arranged along the light path; and the light-emitting surface is formed with an optical microstructure. The utility model discloses can compromise the efficiency of even luminous problem and improvement light transmission.
Description
Technical Field
The utility model relates to a light-emitting structure technical field especially relates to a leaded light spare and use its light-emitting component.
Background
In the signal lamp, light needs to be collimated by the light guide structure. Common thick-wall light guide structures mainly include direct-projection type, reflection type, and thick-wall light guide structures combining direct projection and reflection. The signal lamp needs to be provided with continuous lighting areas, and a plurality of light sources and light guide structures which are correspondingly and continuously arranged. The thick wall is deeply transparent because of the sense of smell and transparency when the thick wall is not lighted, and the stereoscopic impression and the crystal sense after being lighted are deeply liked by consumers. The thick-wall part is also widely applied to various signal indicator lamps such as daytime running lamps, steering lamps, brake lamps, tail lamps and the like due to higher light efficiency utilization rate and better uniformity.
For the thick wall with simpler modeling, if a better uniform luminous effect is to be achieved, the requirement on space is higher, bright spots are easy to exist, and if the thick wall is dual-functional, the requirement is higher. Meanwhile, in the design process of a daytime running lamp/front position lamp, if the depth of the thick wall is too long, the lamp is easy to yellow, and at the moment, the LED with higher color bin and the better material of the thick-wall part are needed to make up the defect of yellowing, so that the cost is increased.
In addition, to leaded light spare, not only the problem of uniform light emission will be considered, light transmission's efficiency still needs to be taken into account, when luminous efficacy is lower, need adopt the high power light source 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 model design of other spare parts designs of whole lamp and whole lamp.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first purpose provides a leaded light spare to solve the technical problem who optimizes the light-emitting effect.
A second object of the present invention is to provide a light emitting device to solve the technical problem of optimizing the light emitting effect.
The utility model discloses a leaded light spare is realized like this:
a light guide, comprising: the light source comprises a light-gathering part, a reflecting part, a conducting part and a light-emitting surface, wherein the light-gathering part is used for gathering light emitted by the light source, the reflecting part is used for reflecting the light reflected by the light-gathering part, the conducting part is used for conducting the light reflected by the reflecting part, and the light-emitting surface is used for projecting the light conducted by the conducting part; wherein
The reflecting part comprises a first reflecting surface, a second reflecting surface and a third reflecting surface which are sequentially arranged along the light path; and
the light-emitting surface is provided with an optical microstructure.
In an alternative embodiment of the present invention, the optical microstructure is an optical pattern.
In an optional embodiment of the present invention, the first reflecting surface and the second reflecting surface are parallel, and an included angle formed by the first reflecting surface and the third reflecting surface is 86 ° to 94 °; wherein
The third reflecting surface inclines from the second reflecting surface to the light-emitting surface; and
the third reflecting surface and the light-emitting surface form an included angle of 43-47 degrees.
In an alternative embodiment of the present invention, a surface of at least one of the first reflecting surface, the second reflecting surface, and the third reflecting surface is formed with light guide teeth.
The utility model discloses a light-emitting component realizes like this:
a light emitting assembly comprising: the light guide part and the plurality of light sources are matched for use; wherein
The light-gathering part of the light guide part comprises a plurality of light-gathering parts which are arranged in a straight line;
each light gathering piece is provided with a first refraction part and a second refraction part which are respectively arranged at the two ends of the light gathering piece;
the first refraction portion is arranged toward the light source corresponding to the light-gathering member.
In an optional embodiment of the present invention, a groove is formed on an end surface of the light condensing member facing the light source;
the bottom wall and the peripheral wall of the groove form the first refraction portion.
In an optional embodiment of the present invention, a total reflection region is disposed on the outer wall of the light-gathering member.
In an alternative embodiment of the present invention, the total reflection area includes a first conical surface and a cylindrical surface sequentially arranged along the light transmission path.
In an alternative embodiment of the present invention, the total reflection area includes a first tapered surface and a second tapered surface arranged in sequence along the light transmission path.
In an optional embodiment of the present invention, the light guide member is made of PMMA, and the reflecting portion, the conducting portion and the light emitting surface are formed on the light guide member; and
the light-gathering part is made of PC materials.
By adopting the technical scheme, the utility model discloses following beneficial effect has: the utility model discloses a leaded light spare and use its light emitting component, light assembles in proper order, and emergent again after the cubic reflection of first plane of reflection, second plane of reflection and third plane of reflection can be applicable to the great car light molding of opening, and the efficient realizes evenly lighting a lamp the effect.
Moreover, the first refraction part and the second refraction part are arranged at the two ends of the light gathering piece, and the first refraction part is arranged towards the light source, so that the light gathering and the light emitting are facilitated.
In addition, the light condensing part is made of a PC material, the part of the light guide part for forming the reflecting part, the conducting part and the light emitting surface is made of a PMMA material, and the light condensing part is mainly used for improving the efficiency of a light source, and the reflecting part and the conducting part are used for taking charge of the whole lighting effect.
Drawings
Fig. 1 is a schematic view of a first view angle structure of the light guide member of the present invention;
fig. 2 is a second view structure diagram of the light guide member of the present invention;
FIG. 3 is a schematic sectional view taken along line A of FIG. 2;
FIG. 4 is a schematic view of the light transmission path corresponding to the state of FIG. 3
Fig. 5 is a schematic structural view of the light guide member of the present invention corresponding to a light collecting member in another embodiment;
fig. 6 is a schematic structural diagram of a light-collecting member according to still another embodiment of the present invention.
In the figure: the light-gathering part 1, the light source 2, the conducting part 5, the first reflecting surface 6, the second reflecting surface 7, the third reflecting surface 8, the light-emitting surface 9, the optical microstructure 91, the groove 101, the refracting surface 102, the first tapered surface 103, the second tapered surface 104, the cylindrical surface 105, the bottom wall 1011, the peripheral wall 1012 and the diffusion pattern 200.
Detailed Description
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the accompanying drawings.
Example 1:
referring to fig. 1 to 6, the present embodiment provides a light guide, including: a light-gathering part for gathering the light emitted by the light source 2, a reflecting part for reflecting the light through the light-gathering part, a transmitting part 5 for transmitting the light reflected by the reflecting part, and a light-emitting surface 9 for projecting the light transmitted by the transmitting part 5, which are sequentially arranged along the light path; the reflecting part comprises a first reflecting surface 6, a second reflecting surface 7 and a third reflecting surface which are sequentially arranged along the light path. That is, for the light, after being converged by the light converging portion, the light passes through the three reflection actions of the first reflection surface 6, the second reflection surface 7 and the third reflection surface 8 in sequence, and finally passes through the conduction portion 5 to be emitted from the light emitting surface 9.
To illustrate a specific optional situation with reference to the accompanying drawings, in order to optimize the total reflection effect, the first reflecting surface 6 and the second reflecting surface 7 in this embodiment are parallel, and an included angle formed by each of the first reflecting surface 6, the second reflecting surface 7 and the third reflecting surface 8 is 86 ° to 94 °; the third reflecting surface 8 is inclined from the second reflecting surface 7 to the light emitting surface 9. More specifically, the third reflective surface 8 is in direct contact with the second reflective surface 7, and the conductive portion 5 is in direct contact with both the first reflective surface 6 and the second reflective surface 7.
It should be noted that, in the embodiment, an included angle formed between the third reflective surface 8 and the light exit surface 9 is 43 ° to 47 °. The first reflecting surface 6 may be coated with an aluminum film to avoid light leakage.
In addition, for the three reflecting surfaces, in an alternative embodiment, the first reflecting surface 6, the second reflecting surface 7 and the third reflecting surface 8 are all provided with diffusing patterns 200, and the sizes of the diffusing patterns 200 respectively positioned on the three reflecting surfaces can be different to avoid generating moire patterns.
In a further alternative embodiment, light guide teeth are formed on the surface of at least one of the first reflective surface 6, the second reflective surface 7 and the third reflective surface 8. The embodiment of the present invention is not limited to which reflective surface the light guide teeth are disposed on.
In addition, the light emitting surface 9 in this embodiment may be formed with an optical microstructure 91 to achieve the purpose of uniform light emission. The optical microstructure here may be a light-emitting pattern, and the light-emitting pattern may be, for example, but not limited to, a spherical pattern, and may be a conical pattern, and the pyramidal pattern light-emitting pattern may change the angle of the light beam contacting with the light-emitting pattern, so that the light beam passing through the light-emitting surface 9 forms a unique light pattern, and meets different light distribution requirements and lighting effects.
Example 2:
on the basis of the light guide member of embodiment 1, the present embodiment provides a light emitting assembly, including: the light guide of example 1 and several light sources 2 used in combination; wherein the light-gathering part comprises a plurality of light-gathering pieces 1 which are arranged in a straight line; each 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 disposed toward the light source 2 corresponding to the light-condensing member 1. Wherein each light collector 1 in the present embodiment corresponds to two light sources 2 of different light colors.
In more detail, the end surface of the light gathering member 1 facing the light source 2 is formed with a groove 101; the bottom wall 1011 and the peripheral wall 1012 of the recess 101 form a first refraction portion. And the middle part of the bottom wall 1011 protrudes downwards relative to the edge, so that all light rays emitted by the light source 2 can be converged, and the utilization rate of the light source 2 can be improved. 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-gathering efficiency, a total reflection area is arranged on the outer wall of the light-gathering member 1. For the total reflection area herein, in a first alternative implementation case, the total reflection area includes a first conical surface 103 and a cylindrical surface 105 which are sequentially arranged along the optical transmission path. In a second alternative implementation, the total reflection area includes a first tapered surface 103 and a second tapered surface 104 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 as to facilitate total reflection of the light refracted onto the first tapered surface 103 and the second tapered surface 104 to the second refraction portion for emission.
In addition, it should be noted that, the parts of the light guide member forming the reflection part, the conduction part 5 and the light exit surface 9 are made of PMMA material; and the light-gathering part is made of PC material. So cooperate, gather light 1 mainly used and improve the efficiency of light source 2, and reflection part and conduction portion 5 are used for being responsible for whole lighting effect, and both cooperations can improve current leaded light spare and adopt single material and appear optics inefficiency easily and dispersed not enough easily to be favorable to light-emitting component to realize more excellent light-emitting performance. Specifically, the parts of the light guide member forming the reflection part, the conduction part 5 and the light emitting surface 9 are made of PMMA materials, so that the dispersion is small, the consistency of light color of the light emitted by the light guide member 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.
Furthermore, it should be noted that, when selecting the material, the high temperature resistance of the light gathering member 1 can be higher than the portion of the light guiding member where the reflection portion and the conduction portion 5 and the light emitting surface 9 are formed, because the light gathering member 1 is arranged close to the light source 2 relative to the reflection portion and the conduction portion 5, and the temperature of the light source 2 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. The light transmission efficiency can be improved by preventing ablation and deformation, thereby being beneficial to reducing the chromatic aberration of a near light part and a light-emitting part and improving the lighting effect and the overall delicate feeling of the whole lamp. Compared with the existing light guide piece, the light guide piece can reduce the requirements of a heat dissipation space and a heat dissipation structure, and is beneficial to the design of other parts and components of other light-emitting devices and the design of the whole shape.
In addition, when selecting the material, the refractive index of the light gathering member 1 can be higher than the positions of the light guiding member on which the reflection part, the conduction part 5 and the light emitting surface 9 are formed, so that the light emitted by the light source 2 can be gathered, and the light transmission efficiency can be improved. Moreover, the light transmittance of the part of the light guide member where the reflection part, the conduction part 5 and the light-emitting surface 9 are formed is higher than that of the light-gathering member 1, which is beneficial to further improving the light transmission efficiency.
In summary, the light emitting device of the present embodiment can achieve both the problem of uniform light emission and the efficiency of light transmission.
The above embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above embodiments are only examples of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may comprise both the first and second features directly contacting each other, and also may comprise the first and second features not being directly contacting each other but being in contact with each other by means of further features between them. Also, the first feature may be over, above or on the second feature including the first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being below, beneath or beneath a second feature includes the first feature being directly below and obliquely below the second feature or simply indicating that the first feature is at a lesser level than the second feature.
Claims (10)
1. A light guide, comprising: the light source comprises a light-gathering part, a reflecting part, a conducting part and a light-emitting surface, wherein the light-gathering part is used for gathering light emitted by the light source, the reflecting part is used for reflecting the light reflected by the light-gathering part, the conducting part is used for conducting the light reflected by the reflecting part, and the light-emitting surface is used for projecting the light conducted by the conducting part; wherein
The reflecting part comprises a first reflecting surface, a second reflecting surface and a third reflecting surface which are sequentially arranged along the light path; and
the light-emitting surface is provided with an optical microstructure.
2. The light guide of claim 1, wherein the optical microstructures are optical patterns.
3. The light guide of claim 1 or 2, wherein the first and second reflective surfaces are parallel, and the first and second reflective surfaces respectively form an included angle with the third reflective surface of 86 ° to 94 °; wherein
The third reflecting surface inclines from the second reflecting surface to the light-emitting surface; and
the third reflecting surface and the light-emitting surface form an included angle of 43-47 degrees.
4. The light guide of claim 1, wherein light guide teeth are formed on a surface of at least one of the first, second, and third reflective surfaces.
5. A light emitting assembly, comprising: the light guide of any one of claims 1 to 4 in use with a plurality of light sources; wherein
The light-gathering part in the light guide part comprises a plurality of light-gathering parts which are arranged in a straight line;
each 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 arranged towards the light source corresponding to the light gathering piece.
6. The lighting assembly according to claim 5, wherein the end surface of the light gathering member facing the light source is formed with a groove;
the bottom wall and the peripheral wall of the groove form the first refraction portion.
7. The illumination assembly as claimed in claim 6, wherein the light-gathering member has a total reflection region on an outer wall thereof.
8. The illumination assembly of claim 7 wherein the total reflection area comprises a first tapered surface and a cylindrical surface arranged in series along the light transmission path.
9. The light-emitting assembly according to claim 7, wherein the total reflection region comprises a first tapered surface and a second tapered surface arranged in sequence along the light transmission path.
10. The light-emitting assembly according to claim 8 or 9, wherein the light-guiding member is made of PMMA for forming the reflection portion, the conduction portion and the light-emitting surface; and
the light-gathering part is made of PC materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231497.0U CN218001369U (en) | 2022-08-24 | 2022-08-24 | Light guide member and light emitting assembly using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222231497.0U CN218001369U (en) | 2022-08-24 | 2022-08-24 | Light guide member and light emitting assembly using the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218001369U true CN218001369U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222231497.0U Active CN218001369U (en) | 2022-08-24 | 2022-08-24 | Light guide member and light emitting assembly using the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218001369U (en) |
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2022
- 2022-08-24 CN CN202222231497.0U patent/CN218001369U/en active Active
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