CN210688908U - Light guide and illumination assembly - Google Patents
Light guide and illumination assembly Download PDFInfo
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- CN210688908U CN210688908U CN201921408899.5U CN201921408899U CN210688908U CN 210688908 U CN210688908 U CN 210688908U CN 201921408899 U CN201921408899 U CN 201921408899U CN 210688908 U CN210688908 U CN 210688908U
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- 239000000843 powder Substances 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000149 argon plasma sintering Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 238000005034 decoration Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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Abstract
The utility model is suitable for a lighting technology field provides a light guide and lighting assembly, and the light guide is including leading the light section and setting up in the light guide section of the tip of the at least one end of leading the light section, and the light that the light source sent is used for guiding the light section and gets into the light guide section, and the light guide section has first surface and the second surface of leveling and relative setting, and first surface and/or second are provided with the leaded light tooth that is used for destroying the total reflection condition of leading the light section on the surface. Light is total reflection in light guide section and light guide section, the direction of meeting reflection behind the leaded light tooth is dispersed, the total reflection condition is destroyed and is jetted out from the light guide section, because the light guide adopts the light guide section that first surface and second surface set up relatively, and set up the leaded light tooth on the surface, light is under the effect of leaded light tooth, from the light guide section with set up the even outgoing in the one side that the surface of leaded light tooth is relative, the unit length light loss value that needs according to actual conditions can also set up the intensive degree of leaded light tooth, size, characteristics such as degree of depth, make the light of outgoing more even.
Description
Technical Field
The utility model relates to the field of lighting technology, in particular to light guide and lighting assembly.
Background
Nowadays, the function of the lamp is not only limited to providing illumination, but also plays a role in lifting weight in modern decoration, has both a lighting function and decoration, and greatly influences the overall layout and final effect of decoration. The consumer level is increasing along with the increase of economic ability, and it puts higher demands on decorative performances such as appearance, lighting effect and versatility of the lighting fixture.
At present, the automobile is more like a second family of people, and some consumers can select the automobile type with the built-in refrigerator according to the requirement on the functionality of the automobile or modify the automobile to install the refrigerator. The refrigerator need be at its inside lighting assembly that sets up in the car, and in some schemes, the built-in lighting assembly of refrigerator is provided with the light guide, but there is the defect in traditional light guide structural design, and illuminance homogeneity is poor, influences the illumination and the decorative effect of whole lighting assembly light-emitting.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light guide, the poor technical problem of traditional light guide illuminance homogeneity that aims at solving.
The utility model discloses a realize like this, a light guide, including the light guide section with set up in the light guide section of the tip of the at least one end of light guide section, the light that the light guide section was used for guiding the light source to send gets into the light guide section, the light guide section has first surface and the second surface of leveling and relative setting, first surface and/or the second is provided with a plurality of being used for destroying on the surface the light guide tooth of the total reflection condition of light guide section.
In an embodiment of the present invention, the light guide comprises at least two light guide sections, and both ends of the light guide section are provided with the light guide sections.
In an embodiment of the present invention, a plurality of the light guide teeth are disposed on the first surface and/or the second surface of the light guide section at equal intervals.
In an embodiment of the present invention, the light guide teeth are recessed structures perpendicular to the length direction of the light guide section.
In an embodiment of the present invention, the light guide teeth are cylindrical surface depressions perpendicular to the length direction of the light guide section.
In an embodiment of the present invention, the light guiding section is integrally formed with the light guiding section; or the light guide section is connected with the light guide section in a powder sintering mode.
In an embodiment of the present invention, the light guide section and the light guide section are connected in a smooth transition.
In an embodiment of the present invention, the light guiding section is a semi-ring structure, the first surface is disposed on the outer side of the semi-ring structure, the second surface is disposed on the inner side of the semi-ring structure, and the light guiding teeth are disposed on the first surface
Another object of the present invention is to provide a lighting assembly including the light guide as described above, the lighting assembly further includes a light scattering member and a light source, the light scattering member set up in the back of the light guide one side of the light guide tooth and with the light guide interval sets up, the light source set up in the light guide section is kept away from the one end of the light guide section.
In an embodiment of the present invention, a protrusion is disposed on a surface of the light guide section adjacent to the first surface, and the protrusion extends along a length direction of the light guide section.
Implement the utility model discloses a light guide has following beneficial effect at least:
the utility model provides a light guide, light takes place the total reflection in light guide section and light guide section, the direction propagation that extends along the light guide inside the light guide, light meets the direction of reflection behind the leaded light tooth and is dispersed, partial light's total reflection condition is destroyed and jets out from the light guide section, because the light guide adopts the light guide section that first surface and second surface set up relatively, and set up the leaded light tooth on first surface and/or second surface, thus, the light that propagates from the light guide section can be under the reflex action of leaded light tooth, from the light guide section with set up the even outgoing in one side that the side of leaded light tooth is relative, can also set up the intensive degree of leaded light tooth in a flexible way according to the unit length light loss value that actual conditions needs, size, characteristics such as degree of depth, and then make the light of outgoing more even.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a lighting assembly provided in an embodiment of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
fig. 3 is a schematic cross-sectional view of a lighting assembly provided by an embodiment of the present invention;
fig. 4 is a partially enlarged top view of a lighting assembly provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of the light intensity distribution of the light guide section provided by the embodiment of the present invention;
reference numerals referred to in the above figures are detailed below:
10-a light guide; 11-a light guide section; 111-a first surface; 112-a second surface; 113-light guide teeth; 114-a bump; 12-a light guiding section; 121-a cylindrical portion; 122-a reflector cup; 20-a light-scattering member; 30-light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to explain the technical solution of the present invention, the following detailed description is made with reference to the specific drawings and examples.
Referring to fig. 1 and 2, an embodiment of the present invention provides a light guide 10, including a light guide section 11 and a light guide section 12 disposed at an end of at least one end of the light guide section 11, where the light guide section 12 is used for guiding light emitted from a light source 30 to enter the light guide section 11, the light guide section 11 has a first surface 111 and a second surface 112 that are flat and disposed oppositely, and a plurality of light guide teeth 113 for destroying a total reflection condition of the light guide section 11 are disposed on the first surface 111 and/or the second surface 112.
The embodiment of the utility model provides a light guide 10, light takes place the total reflection in light guide section 12 and light guide section 11, the direction propagation that extends along light guide 10 inside light guide 10, light meets 113 back reflection's of leaded light tooth direction and is dispersed, the total reflection condition of part light is destroyed and jets out from light guide section 11, because light guide 10 adopts the relative light guide section 11 that sets up of first surface and second surface, and set up leaded light tooth 113 on the surface, thus, the light that propagates from light guide section 11 can be under the reflex action of leaded light tooth 113, from light guide section 11 and the relative one side uniform exit in surface that sets up leaded light tooth 113, can also set up the intensive degree of leaded light tooth 113 in a flexible way according to the unit length light loss value that actual conditions needs, size, characteristics such as degree of depth, and then make the light of outgoing more even.
Referring to fig. 1, fig. 2 and fig. 4, as a specific scheme of this embodiment, the light guide 10 has a strip-shaped structure, a cross section of the light guide is rectangular, the first surface and the second surface of the light guide section 11 are disposed opposite to each other, the first surface 111 and the second surface 112 are two opposite sides of the light guide section 11, the first surface and the second surface are disposed opposite to each other, the light guide teeth 113 are disposed on the first surface 111 and/or the second surface 112, light rays propagating from the light guide section 11 can be uniformly emitted from one side of the light guide section 11 opposite to the surface on which the light guide teeth 113 are disposed under a reflection effect of the light guide teeth 113, and features such as an intensity, a size, a depth and the like of the light guide teeth 113 can be flexibly set according to a unit length light loss value required by an actual situation, so that the emitted light rays are more uniform.
Referring to fig. 1, in an embodiment of the present invention, the light guide 10 includes at least two light guiding sections 12, the light guiding sections 12 are disposed at two ends of the light guiding section 11, the light guide 10 includes at least two light guiding sections 12, and the at least two light guiding sections 12 are disposed at two ends of the light guide 10 respectively. After the light guide section 12 guides light to enter the light guide section 11, the light is propagated in the light guide section 11 and is dispersed to one side opposite to the side where the light guide teeth 113 are located with a certain loss, and the phenomenon of uneven light intensity of the light guide section 11 inevitably occurs, so that the light attenuations at the two ends of the light guide section 11 can be mutually offset by respectively arranging the light guide sections 12 at the two ends of the light guide section 11, and the uniformity of light outgoing of the light guide 10 is improved. As a preferable scheme of the present embodiment, the light guide 10 includes two light guide sections 12 respectively disposed at both ends of the light guide, and the two light guide sections 12 are connected to both ends of the light guide section 11 in a one-to-one manner.
Referring to fig. 1 and 2, as a preferred embodiment of the present embodiment, the cross section of the light guiding section 12 is circular, one end of the two ends of the light guiding section 12 is connected to the light guiding section 11, and the other end is used for connecting to the light source 30. As an alternative to this embodiment, the light guiding section 12 comprises a cylindrical portion 121 made of transparent material for guiding the light guide 10 emitted from the light source 30 to the light guiding section 11; optionally, the light guiding section 12 includes a reflective cup 122, the reflective cup 122 is disposed at one side of the light guiding section 11 based on the principle of the cylindrical portion 121, and is configured to converge the light emitted from the light source 30 in all directions of the space, so that the light is directly emitted to the light guiding section 11; optionally, the light guiding section 12 includes a light reflecting cup 122 and a cylindrical portion 121, and the light reflecting cup 122 converges light emitted from the light source 30 in all directions of the space and emits the converged light in the direction of the cylindrical portion 121 and is further guided to the light guiding section 11.
Referring to fig. 1, fig. 2 and fig. 4, in an embodiment of the present invention, a plurality of light guiding teeth 113 are disposed on the first surface 111 and/or the second surface 112 of the light guiding section at equal intervals, and the light guiding teeth 113 are cylindrical surface recessed structures perpendicular to the length direction of the light guiding section 11. The light guide teeth 113 provided by the embodiment are of a concave structure arranged on the side surface of the light guide section 11, such a structure is convenient to process, only the light guide teeth 113 used for destroying the total reflection condition of light need to be processed on the light guide section 11, and the concave light guide teeth 113 are not easy to be damaged in the process of processing, mounting or using. As a specific solution of this embodiment, the light guide teeth 113 are disposed on the side of the light guide section 11 at equal intervals, and the interval between the light guide teeth 113 and the light guide section 11 is 1.5-2 mm, the light guide teeth 113 are cylindrical surfaces disposed on the side of the light guide section 11 and perpendicular to the extending direction of the light guide section 11, the curvature radius of the cylinder is 0.6-0.7 mm, and the width of the cylinder is 0.2-0.3 mm, such an arrangement can ensure uniformity of light emission, and can enable light emitted by the light source 30 to be transmitted in the light guide section 11 with a reasonable light loss, and to be uniformly guided into the illumination space. As a preferable scheme of this embodiment, the plurality of light guide teeth 113 are disposed on the side surface of the light guide section 11 at equal intervals, and the interval therebetween is 1.93 mm, so that the uniformity of the emitted light can be further enhanced, and the light loss is more reasonable.
In one embodiment of the present invention, the light guiding section 12 and the light guiding section 11 are integrally formed; alternatively, the light guide section 12 is connected to the light guide section 11 by powder sintering. The light can be reflected and refracted on the optical surface interface to cause unnecessary light loss, the light guide section 12 and the light guide section 11 are integrally injection molded, or the light guide section 12 and the light guide section 11 are connected in a powder sintering manner, so that an optical interface can be prevented from being formed between the light guide section 12 and the light guide section 11, and the light emitted by the light source 30 can be transmitted from the light guide section 12 to the light guide section 11 with the lowest loss.
Referring to fig. 1 and 2, in an embodiment of the present invention, the light guide 10 is in a smooth transition at the junction between the light guiding section 11 and the light guiding section 12, specifically, the circular cross section of the light guiding section 12 is in a transition to the rectangular cross section of the light guiding section 11 at the junction with the light guiding section 11, and such an arrangement can ensure that the light guiding section 11 can also uniformly emit light at the junction.
Referring to fig. 1, in an embodiment of the present invention, the light guiding section 11 is a semi-ring structure, the first surface 111 is disposed on an outer side of the semi-ring structure, the second surface 112 is disposed on an inner side of the semi-ring structure, and the light guiding teeth 113 are disposed on the first surface 111. The light-emitting side of the light guide section 11 is the side opposite to the side provided with the light guide teeth 113, and such a design can enable the light guide section 11 to uniformly emit light to the inner side of the annular structure, and is more suitable for the conditions of illumination inside a closed space, such as interior illumination of a vehicle or interior illumination of a refrigerator.
Referring to fig. 1 to 4, an embodiment of the present invention further provides an illumination assembly including the light guide 10 as described above, the illumination assembly further includes a light scattering member 20 and a light source 30, the light scattering member 20 is disposed on a side of the light guide 10 opposite to the light guide teeth 113 and spaced apart from the light guide 10, and the light source 30 is disposed at an end of the light guide section 12 away from the light guide section 11.
Referring to fig. 2 to 4, in an embodiment of the present invention, a protrusion 114 is disposed on a surface of the light guide section 11 adjacent to the first surface 111, and the protrusion 114 extends along a length direction of the light guide section 11. The protrusion 114 is used for positioning the light guide section 11, specifically, a mounting groove corresponding to the protrusion 114 is arranged at a position where the light guide section 11 is required to be mounted, and the protrusion 114 is butt-mounted in the mounting groove, so that the light guide section 11 can be fixed, the light guide section 11 can be prevented from being deformed and is always stably equal to the distance between the light scattering piece 20 and the light guide section 11, and the light outlet uniformity of the light guide section 11 is ensured.
Referring to fig. 1, as a specific solution of this embodiment, the light guiding section 11 forms a semi-ring shape, the light guiding teeth 113 are disposed on a side surface of the light guiding section 11 facing the outer space of the semi-ring shape, and the light scattering member 20 is disposed facing a side surface of the inner space of the semi-ring shape of the light guiding section 11, so that the light emitted from the light source 30 can be guided to the inner side of the semi-ring shape enclosed by the light guiding section 11, which is more suitable for the lighting situation of the inner space.
In one embodiment of the present invention, the thickness of the light scattering member 20 is 2-3 mm, and the distance between the light scattering member 20 and the light guide section 11 is 0.5-1 mm.
As a preferable scheme of this embodiment, the thickness of the light diffuser 20 is 2.8 mm, the distance between the light diffuser 20 and the light guide section 11 is 0.8 mm, and the plurality of light guide teeth 113 are equidistantly disposed on the side surface of the light guide section 11 and have a distance of 1.93 mm, so that the uniformity of the emitted light can be ensured to the greatest extent, and the light emitted by the light source 30 can be transmitted in the light guide section 11 with a reasonable light loss and can be uniformly guided into the illumination space.
It should be noted that the illumination assembly of the embodiment of the present invention can be applied to the interior illumination of a refrigerator or an on-vehicle refrigerator.
The above description is only an alternative embodiment of the present invention, and should not be construed as limiting the present invention, and any modification, equivalent replacement, or improvement 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 is characterized by comprising a light guide section and a light guide section arranged at the end part of at least one end of the light guide section, wherein the light guide section is used for guiding light rays emitted by a light source to enter the light guide section, the light guide section is provided with a first surface and a second surface which are flat and oppositely arranged, and a plurality of light guide teeth used for destroying the total reflection condition of the light guide section are arranged on the first surface and/or the second surface.
2. The light guide according to claim 1, wherein the light guide comprises at least two of the light guide segments, the light guide segments being disposed at both ends of the light guide segments.
3. The light guide of claim 1, wherein a plurality of the light guide teeth are equally spaced on the first surface and/or the second surface of the light guide section.
4. The light guide of claim 1, wherein the light guide teeth are recessed features perpendicular to a length direction of the light guide section.
5. The light guide of claim 4, wherein the light guide teeth are cylindrical depressions perpendicular to the length of the light guide section.
6. The light guide of claim 1, wherein the light guide section is integrally formed with the light guide section; or the light guide section is connected with the light guide section in a powder sintering mode.
7. The light guide of claim 1, wherein the junction of the light guide section and the light guide section is a smooth transition.
8. The light guide according to any of claims 1-7, wherein the light guide section is a semi-annular structure, the first surface is disposed on an outer side of the semi-annular structure, the second surface is disposed on an inner side of the semi-annular structure, and the light guide teeth are disposed on the first surface.
9. A lighting assembly comprising a light guide according to any one of claims 1 to 8, further comprising a diffuser disposed on a side of the light guide facing away from the light guide teeth and spaced from the light guide, and a light source disposed at an end of the light guide section remote from the light guide section.
10. The lighting assembly according to claim 9, wherein a surface of the light guide section adjacent to the first surface is provided with a protrusion extending along a length of the light guide section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408899.5U CN210688908U (en) | 2019-08-28 | 2019-08-28 | Light guide and illumination assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921408899.5U CN210688908U (en) | 2019-08-28 | 2019-08-28 | Light guide and illumination assembly |
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| Publication Number | Publication Date |
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| CN210688908U true CN210688908U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921408899.5U Active CN210688908U (en) | 2019-08-28 | 2019-08-28 | Light guide and illumination assembly |
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| CN (1) | CN210688908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983747A (en) * | 2020-09-24 | 2020-11-24 | Tcl通力电子（惠州）有限公司 | Light guide structure and intelligent lighting device |
-
2019
- 2019-08-28 CN CN201921408899.5U patent/CN210688908U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983747A (en) * | 2020-09-24 | 2020-11-24 | Tcl通力电子（惠州）有限公司 | Light guide structure and intelligent lighting device |
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