CN219300595U

CN219300595U - Light guide structure and lamp area

Info

Publication number: CN219300595U
Application number: CN202320143043.XU
Authority: CN
Inventors: 周良; 姜君城; 廖启威
Original assignee: Shenzhen Baikang Optical Co ltd
Current assignee: Shenzhen Baikang Optical Co ltd
Priority date: 2023-01-12
Filing date: 2023-01-12
Publication date: 2023-07-04
Anticipated expiration: 2033-01-12

Abstract

The utility model provides a light guide structure and a lamp strip, wherein the lamp strip comprises a light guide and a reflecting piece; the reflecting piece extends along the length direction of the light guide and is arranged at intervals with the light guide, and the reflecting piece is used for reflecting light rays emitted by the light guide; wherein the end of the reflecting member is twisted around the axial direction of the light guide by a preset angle. The light guide is used for guiding light rays to propagate along a preset path and emitting the light rays onto the reflecting piece, and the reflecting piece is arranged opposite to the light guide, so that the reflecting piece can reflect the light rays emitted by the light guide, and then light spots in a preset shape are formed when the light guide structure emits light. The end of the reflecting piece is twisted around the axial direction of the light guide by a preset angle, the projection area of the light spot at the plane where the human eye is located is reduced by the deflection of the reflecting piece, and then the visible light emitting surface of the human eye is narrowed, so that the effect of integrally converging and fading the tail of the light spot is achieved, and the light spot has good attractiveness.

Description

Light guide structure and lamp area

Technical Field

The utility model relates to the technical field of illumination, in particular to a light guide structure and a lamp strip with the light guide structure.

Background

With the rapid development of automobile lamp technology, customers pay more and more attention to the appearance, the overall streamline of lighting and the overall brightness uniformity of the automobile lamp. In order to make the lamp more beautiful, the light is more uniform, and the light guide technology is increasingly applied to the field of lamps.

Compared with the traditional reflector type car lamp, the light guide technology can improve the uniformity of light distribution and reduce dark areas. The light guide lamp strip in the related art generally comprises a light guide capable of emitting light and a reflecting piece which is arranged opposite to the light guide, and the curvature change of the light guide in the related art is consistent with that of the reflecting piece, so that the irradiated light spot effect is a uniform light beam strip with equal width, the shape of the tail part of the light spot is not smooth enough, the shape change is abrupt, and the attractive appearance is insufficient.

Disclosure of Invention

The utility model aims to provide a light guide structure and a lamp strip, which are used for solving the technical problems that the shape of the tail end of a light spot formed by the lamp strip in the prior art is not smooth enough and the shape change is abrupt.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, a light guiding structure is provided, comprising a light guide and a reflector; the reflecting piece extends along the length direction of the light guide and is arranged opposite to the light guide, and the reflecting piece is used for reflecting light rays emitted by the light guide; wherein the end of the reflecting member is twisted around the axial direction of the light guide by a preset angle.

Through adopting above-mentioned technical scheme, the light guide is used for guiding light to propagate along preset route to with light emission to the reflector, reflector and light guide set up relatively, make the reflector can reflect the light that the light guide sent, form the facula of preset shape when making the light guide structure luminous. The end of the reflecting piece is twisted around the axial direction of the light guide by a preset angle, the deflection of the reflecting piece reduces the projection area of the light spot at the plane where the human eye is located, and then the visible light emitting surface of the human eye is narrowed, so that the effect of integrally converging and fading the tail of the light spot is achieved. Compared with the strip-shaped light spots with medium width and uniformity in the related art, the light guide structure provided by the embodiment has the advantages that the light spot tail part formed by the light guide structure is smoother, the shape change of the light spot tail part is not abrupt, and the appearance is more attractive.

In one embodiment, the reflector comprises a middle section and an end connected to the middle section, the end being connected to the middle section in a plane of abutment, the ridge of the cross section of the end being unidirectionally rotated about the axis of the light guide with increasing distance from the plane of abutment.

By adopting the technical scheme, the ridge line of the cross section of the end part increases along with the distance from the connecting plane, and rotates unidirectionally around the axial direction of the light guide, so that the end part gradually bends and transits from one end close to the connecting plane to one end deviating from the connecting plane, and the effect of integral convergence of the tail part of the light spot is realized.

In one embodiment, the end portion includes a connecting end connected to the intermediate section and a tip disposed opposite the connecting end, a ridge line in a cross section of the tip being deflected by a predetermined angle relative to a ridge line in a cross section of the connecting end.

Through adopting above-mentioned technical scheme, the ridge on the cross section of terminal deflects preset angle for the ridge on the cross section of link for the terminal takes place to twist reverse for the link crooked, and the projection area of facula at the plane department that the people's eye is located of the deflection messenger of terminal department reduces, and then makes the visible light emitting area of people's eye narrow, thereby reaches the effect that the whole receipts of facula formed of terminal grew.

In one embodiment, the predetermined angle ranges from 30 ° to 60 °.

By adopting the technical scheme, the end part of the reflecting piece is twisted around the axial direction of the light guide by a preset angle, the range of the preset angle is 30-60 degrees, and the effect of integral beam converging and fading of the tail part of the light spot can be achieved at the preset angle in the range.

In one embodiment, the light guide comprises a light guide section and a light emitting section connected to the light guide section, wherein the light guide section is used for guiding light rays emitted by a light source to enter the light emitting section.

By adopting the technical scheme, the light guide section guides the light rays emitted by the light source into the light emitting section according to the preset path, the light rays are transmitted in the light emitting section and are transmitted to the reflecting piece, the reflecting piece emits the light rays to form light spots with specific shapes, and the light spots can illuminate and decorate the environment where the light spots are positioned, so that the light spots have certain attractive appearance.

In one embodiment, the light guide comprises at least two light guide sections, and the light guide sections are connected to both ends of the light emitting section.

Through adopting above-mentioned technical scheme, the both ends of luminous section all are connected with the leaded light section, and two leaded light sections all can couple with corresponding light source, and the light that the light source sent can be followed the both ends of light guide and towards middle propagation for the holistic luminous effect of leaded light structure is more even.

In one embodiment, the light guide section is provided with a coupling joint for being connected with the light source in a matching way.

Through adopting above-mentioned technical scheme, the coupling joint can carry out the cooperation with the corresponding part of light source and be connected, and then realizes coupling connection light source and leaded light section together, makes it stabilize collimation, avoids light source and leaded light Duan Songtuo.

In one embodiment, the light guide section is integrally formed with the light emitting section.

By adopting the technical scheme, the interface between the light guide section and the light emitting section can be avoided, and light rays emitted by the light source can be transmitted from the light guide section to the light emitting section with lower loss.

In one embodiment, the light guide is provided with a reflecting surface and a light emitting surface opposite to each other, and the reflecting member is provided opposite to the light emitting surface.

By adopting the technical scheme, the reflecting surface can reflect the light rays emitted by the light source to the light emitting surface, and the light emitting surface can transmit the light rays, so that the light rays are emitted to the reflecting piece, and further light spots with preset shapes are formed.

In one embodiment, the reflecting surface is provided with a plurality of tooth-shaped structures which are arranged at intervals.

Through adopting above-mentioned technical scheme, tooth form structure makes the light that the light source sent can be more even carry out total reflection in the inside of light guide 1, and then promotes the propagation efficiency of light, reduces energy loss.

In one embodiment, the material of the light guide is polycarbonate or polymethyl methacrylate.

By adopting the technical scheme, polymethyl methacrylate and polycarbonate have good light transmittance, for example, the light transmittance of polymethyl methacrylate can reach 92%, the light transmittance of polycarbonate can reach 88%, and the good light transmittance is beneficial to reducing the loss of light in the propagation process.

In a second aspect, a light strip includes a light source and a light guiding structure according to any of the above technical solutions, where the light source is connected to the light guide.

By adopting the technical scheme, the light source is connected to the light guide, and light rays emitted by the light source can be transmitted along the light guide, so that light spots with specific shapes are formed, and the functions of illumination and decoration of the lamp strip are realized.

In one embodiment, the light source is an LED lamp.

By adopting the technical scheme, the LED lamp has great advantages compared with other light sources, and is widely used for lamps. The LED lamp is used as the light source of the embodiment, can continuously provide light for the light guide, and is energy-saving and environment-friendly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed 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 utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a light guide structure according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a portion of a light guiding structure according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a portion of a light guiding structure according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a front view of a reflector provided by an embodiment of the present utility model;

FIG. 6 is a side view of a reflector provided by an embodiment of the present utility model;

FIG. 7 is a schematic illustration of the spot shape of a prior art lamp strip;

fig. 8 is a schematic view of a spot shape of a lamp strip according to an embodiment of the present utility model.

The reference numerals in the drawings are as follows:

100. a light guiding structure;

1. a light guide; 2. a reflecting member; 3. a light spot; a. presetting an angle; p, a connecting plane; m, a ridge line;

11. a light guide section; 12. a light emitting section; 13. a reflecting surface; 14. a light-emitting surface; 21. an intermediate section; 22. an end portion; 31. the tail part of the light spot; 111. a coupling joint; 131. a tooth-like structure; 221. a connection end; 222. a terminal end; 1111. a protrusion.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model 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 scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing the utility model based on the orientation or positional relationship shown in the drawings, and are not to be construed as limiting the utility model, as the indicating device or element must have a particular orientation, be constructed and operated in a particular orientation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The following describes in more detail the specific implementation of the present utility model in connection with specific embodiments:

referring to fig. 1, a light guiding structure 100 according to an embodiment of the present utility model includes a light guide 1 and a reflecting member 2; the reflecting piece 2 extends along the length direction of the light guide 1 and is arranged opposite to the light guide 1, and the reflecting piece 2 is used for reflecting light rays emitted by the light guide 1; wherein the end 22 of the reflector 2 is twisted around the axis of the light guide 1 by a preset angle a. The end of the reflector 2 may be one end of the reflector 2 or both ends of the reflector 2.

The light guide 1 is used for guiding light rays to propagate along a preset path and emitting the light rays onto the reflecting piece 2, and the reflecting piece 2 is arranged opposite to the light guide 1, so that the reflecting piece 2 can reflect the light rays emitted by the light guide 1, and a light spot with a preset shape is formed when the light guide structure 100 emits light. Specifically, the shape and the curvature of the light guide 1 can be adjusted according to actual requirements, which is not limited in this embodiment; the reflector 2 is preferably a sheet-like structure having a plane surface which reflects light, and the reflector 2 is preferably made of a light-impermeable material, for example leather or a light-impermeable material with a rough surface (with respect to a mirror surface). In the related art, the curvature of the light guide 1 is generally consistent with the curvature of the reflecting member 2, so that a spot shape as shown in fig. 7 is formed when the light is emitted, and the spot 3 is a uniform stripe-shaped spot with equal width. The transition of the spot tail 31 of the spot 3 is less rounded. Thereby making the shape of the spot 3 less attractive. When the light guiding structure 100 in this embodiment emits light, the light spot 3 as shown in fig. 8 is formed, the tail 31 of the light spot 3 is convergent and evanescent, which is smoother and has a higher aesthetic property.

Through adopting above-mentioned technical scheme, light guide 1 is used for guiding light to propagate along preset route to with the light emission to reflector 2 on, reflector 2 sets up with light guide 1 relatively, makes reflector 2 can reflect the light that light guide 1 sent, forms the facula of preset shape when making light guide structure 100 give out light. The end 22 of the reflecting member 2 is twisted around the axial direction of the light guide 1 by a preset angle a, the deflection of the reflecting member 2 reduces the projection area of the light spot at the plane of the human eye, and the visible luminous surface of the human eye is narrowed, so that the effect of integrally converging and fading the tail 31 of the light spot is achieved. Compared with the strip-shaped light spot with medium width and uniformity in the related art, the light guide structure 100 provided in this embodiment forms the light spot tail 31 more smoothly, and the shape change of the light spot tail 31 is not abrupt, so that the light guide structure is more attractive.

Referring to fig. 5 and 6, in one embodiment, the reflector 2 includes a middle section 21 and an end 22 connected to the middle section 21, the end 22 being connected to the middle section 21 in a plane of abutment P, a ridge line M of a cross section of the end 22 unidirectionally rotates about an axial direction of the light guide 1 with increasing distance from the plane of abutment P. It should be noted that, the reflecting member 2 in the present embodiment is preferably a sheet-like structure, and the sheet-like structure may be regarded as a curved surface structure formed by twisting a planar structure around the axial direction of the light guide 1 by the predetermined angle a. The ridge line M is the axis of the cross-section of the sheet-like structure, i.e. the ridge line M is the centre line of the cross-section profile, each point on it being at the same distance from the relatively long boundary lines of the profile. For example, when the cross section is rectangular, the ridge line M is a median line connecting midpoints of two opposite short sides of the rectangle; when the cross section is a half-moon structure, each point on the ridge line M has the same distance from the opposite circular arcs. In particular, the curvature variation of the intermediate section 21 preferably coincides with the curvature variation of the light guide 1.

By adopting the above technical scheme, the ridge line M of the cross section of the end 22 increases along with the distance from the connecting plane P, and rotates unidirectionally around the axial direction of the light guide 1, so that the end 22 gradually bends and transits from one end close to the connecting plane P to one end deviating from the connecting plane P, and the whole converging and fading effect of the light spot tail 31 is realized.

Referring to fig. 5 and 6, in one embodiment, the end 22 includes a connection end 221 connected to the middle section 21 and a tip 222 disposed opposite to the connection end 221, and a ridge line M of a cross section of the tip 222 is deflected by a preset angle a with respect to the ridge line M of a cross section of the connection end 221. When the ridge line M is a curve, the preset angle a is an included angle between tangents of corresponding position points on the curve.

By adopting the above technical scheme, the ridge line M on the cross section of the tail end 222 deflects by the preset angle a relative to the ridge line M on the cross section of the connecting end 221, so that the tail end 222 is twisted and bent relative to the connecting end 221, the deflection of the tail end 222 reduces the projection area of the light spot at the tail end 222 at the plane where the human eye is located, and the visible light emitting surface of the human eye is narrowed, so that the effect of integrally converging and fading the light spot formed by the tail end 222 is achieved.

In one embodiment, the predetermined angle ranges from 30 ° to 60 °.

By adopting the above technical solution, the end 22 of the reflecting element 2 is twisted around the axial direction of the light guide 1 by a preset angle a ranging from 30 ° to 60 °, and the effect of the overall convergence and extinction of the light spot tail 31 can be achieved at the preset angle within this range.

Referring to fig. 1 and 2, in one embodiment, the light guide 1 includes a light guiding section 11 and a light emitting section 12 connected to the light guiding section 11, and the light guiding section 11 is used for guiding light emitted by a light source into the light emitting section 12. The light guide section 11 is used for guiding the light emitted by the light source to the light emitting section 12, so that the light can be emitted to the light emitting section 12 at a preset incident angle and emitted to the reflecting member 2 according to a preset path. The light emitting section 12 is mainly used for emitting light, and the light is reflected in the light emitting section 12, then passes through the light emitting section 12 and irradiates on the reflecting member 2.

By adopting the technical scheme, the light guide section 11 guides the light rays emitted by the light source into the light emitting section 12 according to the preset path, the light rays are transmitted in the light emitting section 12 and are transmitted out to the reflecting piece 2, the reflecting piece 2 emits the light rays to form light spots with specific shapes, and the light spots can illuminate and decorate the environment where the light spots are positioned and have certain attractive degree.

Referring to fig. 1 and 2, in one embodiment, the light guide 1 includes at least two light guide sections 11, and the light guide sections 11 are connected to both ends of the light emitting section 12. When only one light guide section 11 is provided, only one light source can be connected, and since the light generated by the light source generates energy loss when propagating in the light guide 1, the energy of the light at the end of the light guide 1 near the light guide section 11 is larger than the energy at the end of the light guide 1 far away from the light guide section 11, thereby resulting in uneven overall light emitting effect of the light guide structure 100. In this embodiment, the light guide sections 11 are disposed at two ends of the light guide 1, each light guide section 11 can be coupled with a light source, and this arrangement mode can compensate for the energy loss of light transmitted from one end of the light guide 1 to the other end of the light guide 1, so that the overall light emitting effect of the light guide structure 100 is more uniform.

Through adopting above-mentioned technical scheme, the both ends of luminous section 12 all are connected with light guide section 11, and two light guide section 11 all can couple with corresponding light source, and the light that the light source sent can propagate from the both ends of light guide 1 towards the centre for the holistic luminous effect of light guide structure 100 is more even.

In one embodiment, the light guide section 11 is provided with a coupling joint 111 for mating connection with a light source. Specifically, the light guide section 11 is provided with a coupling joint 111 for coupling with a light source, at least one protrusion 1111 is provided on the coupling joint 111, and the protrusion 1111 can be clamped to the light source, so as to couple the light guide section 11 to the light source. The protrusion 1111 can be matched and connected with a structure with a corresponding shape on the light source, so that the light source and the light guide section 11 are coupled and connected together, the light source and the light guide section 11 are stably aligned, and the light source and the light guide section 11 are prevented from loosening.

Through adopting above-mentioned technical scheme, coupling joint 111 can carry out the cooperation with the corresponding part of light source and be connected, and then realize coupling connection light source and leaded light section 11 together, makes it firm collimation, avoids light source and leaded light section 11 pine to take off.

In one embodiment, the light guide section 11 is integrally formed with the light emitting section 12. When the light guide section 11 and the light emitting section 12 are both independent structures, an interface is easily formed on the connection surface of the two, and the interface can affect the propagation of light and increase the loss of light energy. The light guide section 11 and the light emitting section 12 are integrally formed to avoid the above-described problems.

By adopting the technical scheme, the interface between the light guide section 11 and the light emitting section 12 can be avoided, and the light emitted by the light source can be transmitted from the light guide section 11 to the light emitting section 12 with lower loss.

Referring to fig. 2 and 3, in one embodiment, the light guide 1 is provided with a reflective surface 13 and a light emitting surface 14 opposite to each other, and the reflective element 2 is provided opposite to the light emitting surface 14. Specifically, the light-emitting surface 14 is preferably a curved surface, so that light is refracted into air through the light-emitting surface 14, and a small amount of light with total reflection is scattered due to the action of the curved surface, so that the elimination of bright spots is realized, and in the process, no process program is required to be added, and compared with the prior art, the cost is reduced.

By adopting the above technical scheme, the reflecting surface 13 can reflect the light emitted by the light source to the light emitting surface 14, and the light emitting surface 14 can transmit the light, so that the light is emitted to the reflecting member 2, and further a light spot with a predetermined shape is formed.

Referring to fig. 3 and 4, in one embodiment, the reflecting surface 13 is provided with a plurality of tooth-like structures 131 disposed at intervals. Specifically, the features of the tooth-like structure 131 such as the density, the size, the depth and the like can be set according to the actual situation requirement, so that the emergent light is more uniform.

Through adopting above-mentioned technical scheme, tooth form structure 131 makes the light that the light source sent can be more even carry out total reflection in the inside of light guide 1, and then promotes the propagation efficiency of light, reduces energy loss.

In one embodiment, the material of the light guide 1 is Polycarbonate (polymethyl methacrylate, abbreviated as PC in english) or polymethyl methacrylate (PMMA in english), and in this embodiment, the light guide 1 is preferably made of PMMA, and the PMMA has better heat resistance, and is not easy to chemically change when heated, so that the yellowing and color-changing probability of the light guide 1 in the heat environment generated by the light source can be reduced.

In a second aspect, a light strip includes a light source (not shown) and a light guiding structure 100 according to any of the above embodiments, where the light guiding structure 100 has the advantages of any of the above embodiments of the light guiding structure 100, and the light source is connected to the light guide 1. The light source in this embodiment may be a light emitting element such as an LED lamp, a laser light source, an infrared light source, or a laser light source. In the same light strip, different light guide sections 11 may be connected with the same or different light emitting elements as light sources.

Through adopting above-mentioned technical scheme, the light source is connected in light guide 1, and the light that the light source sent can propagate along light guide 1, and then forms the facula of specific shape to realize the illumination and the function of decorating of lamp area.

In one embodiment, the light source is an LED lamp. Preferably, all light sources in the strip use the same LED lamp. At the same time, the color, structure and shape of the LED lamp may be chosen according to the setting requirements of the light guide 1 and the lamp strip or other individualization requirements.

By adopting the technical scheme, the LED lamp has great advantages compared with other light sources, and is widely used for lamps. An LED lamp is used as the light source of the present embodiment, which can continuously provide light for the light guide 1, and is energy-saving and environment-friendly.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A light guide structure, comprising:

a light guide;

the reflecting piece extends along the length direction of the light guide and is arranged opposite to the light guide, and the reflecting piece is used for reflecting light rays emitted by the light guide;

wherein the end of the reflecting member is twisted around the axial direction of the light guide by a preset angle.

2. The light guide structure of claim 1, wherein the reflector comprises a middle section and an end connected to the middle section, the end being connected to the middle section in a plane of abutment, a ridge line of a cross section of the end being unidirectionally rotated about an axial direction of the light guide with increasing distance from the plane of abutment.

3. A light guide structure as claimed in claim 2, wherein the end portion comprises a connecting end connected to the intermediate section and a tip disposed opposite the connecting end, the ridge line in the cross section of the tip being deflected by the predetermined angle with respect to the ridge line in the cross section of the connecting end.

4. A light guide structure as claimed in any one of claims 1 to 3, wherein the predetermined angle is in the range 30 ° to 60 °.

5. The light guide structure of claim 1, wherein the light guide comprises a light guide section and a light emitting section connected to the light guide section, the light guide section for guiding light from a light source into the light emitting section.

6. A light guide structure as claimed in claim 5, wherein the light guide comprises at least two of the light guide sections, the light guide sections being connected to both ends of the light emitting section.

7. The light guide structure of claim 5, wherein the light guide section is provided with a coupling for mating connection with a light source.

8. The light guide structure of claim 1, wherein the light guide is provided with a reflective surface and a light exit surface opposite to each other, and the reflective member is disposed opposite to the light exit surface.

9. The light guide structure of claim 8, wherein the reflective surface is provided with a plurality of spaced apart tooth-like structures.

10. A light strip comprising a light source and the light guiding structure of any one of claims 1-9, the light source being connected to the light guide.