CN111273390A - Light guide strip and light guide device with same - Google Patents
Light guide strip and light guide device with same Download PDFInfo
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- CN111273390A CN111273390A CN202010213905.2A CN202010213905A CN111273390A CN 111273390 A CN111273390 A CN 111273390A CN 202010213905 A CN202010213905 A CN 202010213905A CN 111273390 A CN111273390 A CN 111273390A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
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Abstract
The invention relates to a light guide strip and a light guide device with the same, wherein the light guide strip at least comprises a light incident surface, a light emergent surface and a light reflecting surface; the light is emitted into the light guide strip from the light incident surface and directly emitted from the light emitting surface, or is emitted from the light emitting surface after being reflected by the light reflecting surface; the light emergent surface is attached to the surface of the transparent substrate and used for guiding the emitted light into the substrate and carrying out total reflection in the substrate. According to the invention, the light guide strip is attached to the surface of the substrate, light emitted by the light source firstly enters the light guide strip and then enters the substrate, the light source enters the light guide strip from the light inlet surface of the light guide strip and is emitted from the light outlet surface directly or after a series of reflections, and the emitted light is refracted through the critical surface between the light guide strip and the substrate and enters the substrate. By adjusting the included angle among the light incident surface, the light reflecting surface and the light emitting surface, the light can be totally reflected in the substrate after entering the substrate, and finally emitted from the position of the light guide film, so that the light guide function is realized.
Description
Technical Field
The invention relates to the field of light guide materials, in particular to a light guide strip and a light guide device with the light guide strip.
Background
Light guide structure is commonly seen in the light guide plate, and the light guide plate is the high-tech product that turns into the area source with the line source. The optical grade acrylic/PC plate is utilized, and the light guide points are printed on the bottom surface of the plate by an engraving printing technology. The light emitted from the light source is absorbed by the optical-grade acrylic plate and is continuously and totally reflected inside the plate, when the light irradiates each light guide point, the reflected light can be diffused towards each angle, and then the reflected light is emitted from the front surface of the light guide plate under the condition of destroying the reflection. The light guide plate can uniformly emit light through various light guide points with different densities and sizes.
Considering that the light guide plate has high manufacturing cost and a precise optical structure, the whole light guide plate is wasted once being damaged. The light guide plate is replaced by a light guide film and transparent substrate, for example, chinese patent application publication No. CN102565923A discloses a composite light guide plate having a transparent substrate and a transparent film printed with a plurality of light guide dots and attached to the back of the transparent substrate. According to the scheme, the light guide points are printed on the transparent film firstly, and then the transparent film printed with the light guide points is combined with the transparent substrate, so that the composite light guide plate is formed. Because the light guide points are printed on the transparent film, the light guide points are easier to realize than the light guide points which are directly printed on the transparent substrate, the manufacturing difficulty is reduced, and even if the light guide points are badly scrapped, only the transparent film part needs to be scrapped, and the transparent substrate part is intact, so that the cost can be reduced.
When the light guide film is used, the light source needs to be emitted from the side surface of the substrate, is totally reflected in the substrate, then is refracted to enter the light guide film, and then is emitted from the light emitting surface of the light guide film. The leaded light membrane can laminate on some current transparent substrate, if paste on some glass, acrylic plate surface, the light source jets into from the glass side, can follow the leaded light membrane and jet out, lights whole leaded light membrane region to make glass range of application wider. If a merchant can cut the light guide film into specific patterns and characters, the specific patterns and the characters are pasted on the show window glass to attract customers; or can be pasted on an acrylic panel to make a specific advertisement; such as glass outer walls of buildings, and advertisements with words and patterns can be arranged on the light guide film.
However, most of the existing glass show windows are built along with buildings, after the buildings are built, the glass is fixed, and the side surfaces of the glass are fixedly connected with the wall. If the light guide film is attached to the glass, the wall body needs to be broken when the light source is installed, and the light source can be emitted from the side face of the glass. This is very cumbersome and may also damage the glass. If light is injected from the surface of the glass, the incident angle of the light is difficult to control, the scattering and reflection are too strong, the light loss is very large, the light rays which are actually injected into the glass and are injected from the light guide film are very few, and the utilization rate is low.
Disclosure of Invention
In view of the disadvantages of the prior art, an object of the present invention is to provide a light guide strip and a light guide device with the light guide strip, which can smoothly guide light into glass without damaging a wall and has low loss.
In order to achieve the purpose, the invention provides the following technical scheme: a light guide strip is made of transparent materials and at least comprises a light incident surface, a light emergent surface and a light reflecting surface; the light is emitted into the light guide strip from the light incident surface and directly emitted from the light emitting surface, or is emitted from the light emitting surface after being reflected by the light reflecting surface; the light emergent surface is attached to the surface of the transparent substrate and used for guiding the emitted light into the substrate and carrying out total reflection in the substrate.
The transparent substrate is generally made of high-transparency materials such as glass, acrylic and the like, such as show window glass, outer wall glass, transparent advertising boards and the like, the substrate is fixed after installation, the side edges of the substrate are generally fixed with structures such as wall surfaces, frames and the like, and the substrate is difficult to detach, so that a light source cannot enter the substrate from the side surface of the substrate.
According to the invention, the light guide strip is attached to the surface of the substrate, light emitted by the light source firstly enters the light guide strip and then enters the substrate, the light source enters the light guide strip from the light inlet surface of the light guide strip and is emitted from the light outlet surface directly or after a series of reflections, and the emitted light is refracted through the critical surface between the light guide strip and the substrate and enters the substrate. By adjusting the included angle among the light incident surface, the light reflecting surface and the light emitting surface, the light can be totally reflected in the substrate after entering the substrate, and finally emitted from the position of the light guide film, so that the light guide function is realized.
The invention ensures that the light source does not need to enter from the side surface of the substrate, can enter from the surface of the substrate after being guided by the light guide strip, and can be totally reflected in the substrate after entering the substrate as long as a certain incident angle is met, thereby achieving the same function and effect as the incident light from the side surface of the substrate. Due to the arrangement, the structures such as a wall body on the side surface of the substrate do not need to be dismantled, and the structure is more convenient and practical; meanwhile, the design of the reflecting surface in the light guide strip can also enable most of light emitted by the light source to be reflected into the substrate, so that the utilization rate of the light is ensured.
Preferably, the light incident surface, the light emergent surface and the light reflecting surface form a light guide strip.
Through the technical scheme, the light incident surface, the light emergent surface and the light reflecting surface form three side surfaces of a triangular prism, the cross section of the light guiding strip is triangular, light incident from the light incident surface can be directly emitted from the light emergent surface, and can also be emitted to the light reflecting surface and then reflected to the light emergent surface to be emitted.
Preferably, the included angle between the light reflecting surface and the light emergent surface is less than 15 degrees.
The included angle between the light emitting surface and the light reflecting surface corresponds to the light incident surface, most of light is emitted to the light reflecting surface after being emitted from the light incident surface, and enters the substrate from the light emitting surface after being reflected, the included angle is controlled to be less than 15 degrees, the light entering the substrate can be guaranteed to be totally reflected in the substrate, and the light utilization rate is high.
Preferably, the length of the projection edge of the light incident surface is 2-10 mm.
Through the technical scheme, the projection edge of the light incident surface is the edge of the cross section of the light guide strip corresponding to the light incident surface. The longer the length of the projection edge of the light incident surface is, the larger the volume of the whole light guide strip is, and more light rays can enter the substrate through more reflections inside the light guide strip and enter the substrate; meanwhile, the longer the length is, more light sources can be distributed on the light incident surface, so that the brightness of the light finally presented on the light guide film is brighter. However, the larger the volume of the light guide strip is, the more conspicuous the light guide strip is, the substrate is often made of transparent glass, the whole light guide strip is attached to the substrate, the appearance is not good enough, and the smaller the volume is, the less noticeable the light guide strip is.
Preferably, the light incident surface, the light emitting surface and the light reflecting surface form a closed structure which is sequentially connected end to end, the light incident surface and the light emitting surface are planes, the light reflecting surface is a curved surface, and an included angle between a tangent line of any point on the light reflecting surface and the light emitting surface is 80-100 degrees.
Through the technical scheme, the light incident from the light incident surface can be directly emitted from the light emitting surface, and also can be emitted to the light reflecting surface and then reflected to the light emitting surface to be emitted, the structure is simple, and the light can be emitted through one-time reflection; and meanwhile, the curved reflecting surface is adopted, so that more light rays can be reflected, the loss of the light in the light guiding strip is small, and the utilization rate is higher.
Preferably, the light-emitting surface of the light-guiding strip is bonded with the substrate through a high-transparency adhesive, and the refractive index of the transparent adhesive is greater than 1.4.
Through the technical scheme, gluing and fixing are convenient, complete adhesion between the light guide strip and the substrate can be ensured, and bubbles are not generated to influence a light path; meanwhile, the high-transparency glue can minimize the influence on light.
The invention also provides a light guide device with the light guide strip, which comprises a substrate, a light guide film arranged on the surface of the substrate and the light guide strip, wherein the light outlet surface of the light guide strip is attached to the surface of the substrate, and the light guide strip is positioned at any position on the surface of the substrate.
According to the invention, the light guide strip is attached to the surface of the substrate, light emitted by the light source firstly enters the light guide strip and then enters the substrate, the light source enters the light guide strip from the light inlet surface of the light guide strip and is emitted from the light outlet surface directly or after a series of reflections, and the emitted light is refracted through the critical surface between the light guide strip and the substrate and enters the substrate. By adjusting the included angle among the light incident surface, the light reflecting surface and the light emitting surface, the light can be totally reflected in the substrate after entering the substrate, and finally emitted from the position of the light guide film, so that the light guide function is realized. The light guide strip is positioned at any position of the surface of the substrate, and light introduced into the substrate through the light guide strip can be emitted from the light guide film at the other side of the substrate, so that the installation is flexible, and the size and the shape of the substrate can be designed according to the requirements of users.
Preferably, the light guide strip is attached to the surface of the substrate and close to the side edge of the substrate.
By the scheme, the light guide strip is attached to the edge of the substrate, so that the light guide strip is relatively inconspicuous and does not influence the overall visual effect of the substrate; in addition, the light guided by the light guide strip can also be injected into the whole substrate, so that the light guide film at any position on the substrate can play a role.
Preferably, the light source is correspondingly arranged at the position of the light incident surface of the light guide strip. The light source can be an LED lamp strip, the distance between the light source and the light incident surface is as close as possible, and the light source can also be directly attached to the light incident surface to ensure that light is incident into the light guide strip as much as possible.
Preferably, a frame is fixed on the peripheral edge of the substrate, and a light source is arranged on the frame and is opposite to the light incident surface of the light guide strip.
Through the technical scheme, the frame is the mounting structure of the substrate in the prior art, and can be a frame for mounting a billboard, a wall for fixing a glass show window and the like. The light source is directly arranged on the frame, so that the space on the substrate is not occupied, and the light source is more reasonable; and the light guide strip is arranged at the position close to the light source, so that the light guide strip is also arranged at the edge of the substrate, and the integral visual effect of the substrate and the light guide film cannot be influenced.
In conclusion, the invention has the following beneficial effects: the surface of the substrate is attached with the light guide strip, light emitted by the light source firstly enters the light guide strip and then enters the substrate, the light source enters the light guide strip from the light inlet surface of the light guide strip, the light is emitted from the light outlet surface directly or after a series of reflections, and the emitted light is refracted through a critical surface between the light guide strip and the substrate and enters the substrate. By adjusting the included angle among the light incident surface, the light reflecting surface and the light emitting surface, the light can be totally reflected in the substrate after entering the substrate, and finally emitted from the position of the light guide film, so that the light guide function is realized.
Drawings
Fig. 1 is a schematic structural view of a light guide bar according to embodiment 1.
Fig. 2 is a schematic view of a light guide strip mounted on a substrate in embodiment 1.
Fig. 3 is a schematic structural view of a light guide bar according to embodiment 2.
FIG. 4 is a schematic view of a substrate and a light guiding film of embodiment 2.
FIG. 5 is a schematic view of example 2.
Fig. 6 is a schematic view illustrating the installation of a plurality of light guide bars according to embodiment 2.
In the figure: 1. a light incident surface; 2. a light-emitting surface; 3. a light-reflecting surface; 4. a light source; 5. a substrate; 6. a light directing film; 7. a boss portion; 8. a recessed portion; 9. a joining section; 10. a cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, a light guide strip includes a triangular prism composed of a light incident surface 1, a light emergent surface 2 and a light reflecting surface 3; light is incident into the light guide strip from the light incident surface 1 and directly emitted from the light emitting surface 2, or is reflected by the light reflecting surface 3 and then emitted from the light emitting surface 2.
The light guide strip is made of transparent materials, such as transparent acrylic materials and the like.
As shown in fig. 2, the light emitting surface 2 is attached to the surface of the transparent substrate 5 for guiding the emitted light to the substrate 5 and performing total reflection in the substrate 5.
The light source 4 enters the inside of the light guide strip from the light incident surface 1 of the light guide strip, and is emitted from the light emitting surface 2 directly or after being reflected, and the emitted light is refracted through a critical surface between the light guide strip and the substrate 5 and enters the substrate 5. By adjusting the included angle between the light incident surface 1, the light reflecting surface 3 and the light emitting surface 2, the light can be totally reflected in the substrate 5 after entering the substrate 5, and finally emitted from the position of the light guide film, so that the light guide function is realized.
With the arrangement, the light source 4 does not need to enter from the side surface of the substrate 5, can enter from the surface of the substrate 5 after being guided by the light guide strip, and only needs to satisfy a certain incident angle, so that the light can be totally reflected in the substrate 5 after entering the substrate 5, and the same function and effect as those of the incident light from the side surface of the substrate 5 can be achieved. Therefore, the structures such as a wall body on the side surface of the substrate 5 and the like do not need to be dismantled, and the method is more convenient and practical; meanwhile, the design of the reflecting surface 3 in the light guide strip can also enable most of light emitted by the light source 4 to be reflected into the substrate 5, so that the utilization rate of the light is ensured.
One deck reflecting material also can laminate on the reflection of light face 3 for the incident light can not go out from reflection of light face 3 refraction, and reflection of light effect is better, and the utilization ratio of light is higher.
It should be noted that the cross section of the light guiding strip is triangular, light incident from the light incident surface 1 can be directly emitted from the light emitting surface 2, and can also be emitted to the light reflecting surface 3 and then reflected to the light emitting surface 2 to be emitted. Of course, the light guide strips may also be arranged in other shapes, for example, a polygon formed by matching the plurality of light incident surfaces 1, the light reflecting surfaces 3 and the light emitting surfaces 2, and the light can be guided into the substrate 5 only by designing an included angle and a light path.
Meanwhile, the included angle α between the light reflecting surface 3 and the light emitting surface 2 is 8 degrees, most of the light is emitted to the light reflecting surface 3 after being emitted from the light incident surface 1, and enters the substrate 5 from the light emitting surface 2 after being reflected, the angle of the included angle is controlled, so that the light entering the substrate 5 can be guaranteed to be totally reflected in the substrate 5, and the light utilization rate is high.
In this embodiment, the length L of the projection edge of the light incident surface 1 is 2-10mm, and 5mm is selected in this embodiment.
The longer the length of the projection edge of the light incident surface 1 is, the larger the volume of the whole light guide strip is, and more light rays can enter the substrate 5 through more reflections inside the light guide strip and enter the substrate 5; meanwhile, the longer the length of the L is, more light sources 4 can be distributed on the light incident surface 1, so that the brightness of the light finally presented on the light guide film is brighter.
However, the larger the volume of the light guide strip is, the more conspicuous the light guide strip is, the substrate 5 is often transparent glass, the whole light guide strip is attached to the substrate 5, the appearance is not good enough, and the smaller the volume is, the less noticeable the light guide strip is. Can be controlled according to the actual use condition, such as a very large glass curtain wall, even if the light guide strip is slightly larger, the light guide strip cannot be noticed easily.
In this embodiment, the light emitting surface 2 of the light guiding strip and the substrate 5 are bonded by a high transparent adhesive, and the refractive index of the transparent adhesive is greater than 1.4. The gluing and fixing are convenient, the light guide strip and the substrate can be completely attached, and air bubbles cannot be generated to influence the light path; meanwhile, the high-transparency glue can minimize the influence on light.
Example 2:
referring to fig. 3, the present embodiment is different from embodiment 1 in that: the reflecting surface 3 is a curved surface.
In this embodiment, the light incident surface 1, the light emitting surface 2, and the light reflecting surface 3 form a closed structure sequentially connected end to end, and if there is only one light incident surface 1, light emitting surface 2, and light reflecting surface 3, a structure similar to a triangle is formed, where the light reflecting surface 3 is a curved surface, and the light incident surface 1 and the light emitting surface 2 are planes.
In this embodiment, an included angle β between a tangent line of any point on the light reflecting surface 3 and the light emitting surface 2 is 80 ° to 100 °.
The light emitted from the light incident surface 1 can be directly emitted from the light emitting surface 2, and can also be emitted to the light reflecting surface 3 and then reflected to the light emitting surface 2 to be emitted, the structure is simple, and the light can be emitted after being reflected once; meanwhile, the curved reflecting surface 3 is adopted, so that more light rays can be reflected, the loss of the light in the light guiding strip is small, and the utilization rate is higher.
Example 3:
referring to fig. 5, the light guide device with the light guide strip in this embodiment includes a substrate 5, a light guide film 6 disposed on the surface of the substrate 5, and the light guide strip in embodiment 1, wherein the light emitting surface 2 of the light guide strip is attached to the surface of the substrate 5.
The light guide film 6 is attached to the surface of the substrate 5, the contact surface of the light guide film 6 and the substrate 5 is provided with a concave-convex structure, and the concave-convex structure comprises a convex part 7 fixedly connected with the substrate 5, a concave part 8 far away from the substrate 5 and a joint part 9 connecting the convex part 7 and the concave part 8; the substrate 5, the concave part 8 and the joint part 9 are combined to form a plurality of cavities 10.
Referring to fig. 4, if the light source 4 is installed on the side of the substrate 5 according to the conventional arrangement in the prior art, the light source 4 is incident into the substrate 5 from the side of the substrate 5, if the light is incident to the junction between the substrate 5 and the protrusion 7, such light is refracted from the substrate 5 and enters the light guiding film 6, and the light is incident to the joint 9 after entering the light guiding film 6, because the cavity 10 is formed on the other side of the joint 9, the refractive index of air is low, so the light is totally reflected at the joint 9 and is emitted from the side of the light guiding film 6 away from the substrate 5.
If the light is emitted to the connection between the substrate 5 and the cavity 10, the light emitted to the cavity 10 is totally reflected at the critical surface between the substrate 5 and the cavity 10 because the cavity 10 is filled with air, and after the light is totally reflected again in the substrate 5, the light is emitted to the light guide film 6 again until the light is emitted to the protrusion 7, the light is refracted to enter the light guide film 6, and then the light is emitted from the surface of the light guide film 6 far away from the substrate 5.
As can be seen, in the conventional combination of the substrate 5 and the light guiding film 6, the light source 4 must be incident from the side of the substrate 5. The problem of the background art of this patent occurs if the side of the substrate 5 is not available for mounting the light source 4.
Referring to fig. 5, in the embodiment, a light guide strip is attached to the surface of a substrate 5, light emitted from a light source 4 firstly enters the light guide strip and then enters the substrate 5, the light source 4 enters the light guide strip from a light incident surface 1 of the light guide strip, and is emitted from a light emitting surface 2 directly or after a series of reflections, and the emitted light is refracted through a critical surface between the light guide strip and the substrate 5 and enters the substrate 5. By adjusting the included angle between the light incident surface 1, the light reflecting surface 3 and the light emitting surface 2, the light can be totally reflected in the substrate 5 after entering the substrate 5, and finally emitted from the position of the light guide film 6, so that the light guide function is realized.
In this embodiment, the light guide strip can be attached to any position on the surface of the substrate to guide light.
However, in consideration of the light exit position and effect, the light guide strip is preferably attached near the side edge of the substrate 5.
The light guide strip is attached to the edge of the substrate 5, so that the light guide strip is relatively inconspicuous and does not influence the overall visual effect of the substrate 5; in addition, the light guided by the light guide strip can also be injected into the whole substrate 5, so that the light guide film 6 at any position on the substrate 5 can play a role.
It is worth mentioning that the number of light guiding strips may not be limited to one. If the substrate 5 is too large, such as a large-sized curtain wall glass of a building, if the light guiding strip and the light source 4 are only arranged on one side, the light loss will increase as the path of the light in the substrate 5 increases, and the light emitted from the light guiding film 6 at a longer distance will be darker, resulting in uneven light emission from the light guiding film 6. Therefore, the light guide strips can be arranged at any position of the substrate 5, for example, the light guide strips are arranged at the upper, lower, left and right edges. As shown in fig. 6, the number of the light guiding bars may be selected according to the actual size of the substrate 5.
In this embodiment, the light source 4 is correspondingly disposed at the position of the light incident surface 1 of the light guide strip. The light source 4 can be a row of LED lamp beads, the distance between the LED lamp beads and the light incident surface 1 is as close as possible, and the LED lamp beads can also be directly attached to the light incident surface 1 to ensure that light is incident into the light guide strip as much as possible.
In the use scene of the embodiment, the frame is fixed on the peripheral side of the substrate 5, and the frame is an installation structure of the substrate 5 in the prior art, and may be a frame for installing a billboard, a wall for fixing a glass show window, or the like. Thus, the light source 4 may be directly mounted on the frame. Therefore, the light source 4 does not occupy the space on the substrate 5, and is more reasonable; the light guide strip is arranged at the position close to the light source 4, so that the light guide strip is also arranged at the edge of the substrate 5, and the integral visual effect of the substrate 5 and the light guide film 6 cannot be influenced.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. A light guide strip is characterized in that: the light guide strip is made of transparent materials and at least comprises a light inlet surface (1), a light outlet surface (2) and a light reflecting surface (3); light is emitted into the light guide strip from the light incident surface (1) and directly emitted from the light emitting surface (2), or is reflected by the light reflecting surface (3) and then emitted from the light emitting surface (2); the light emitting surface (2) is used for being attached to the surface of the transparent substrate (5), and the emitted light is guided into the substrate (5) and is totally reflected in the substrate (5).
2. The light guide strip of claim 1, wherein: the light guide strip consists of a light incident surface (1), a light emergent surface (2) and a light reflecting surface (3).
3. The light guide strip of claim 2, wherein: the included angle between the reflecting surface (3) and the light-emitting surface (2) is less than 15 degrees.
4. The light guide strip of claim 2, wherein: the length of the projection edge of the light incident surface (1) is 2-10 mm.
5. The light guide strip of claim 1, wherein: the light-incident surface (1), the light-emitting surface (2) and the light-reflecting surface (3) form a closed structure which is sequentially connected end to end, the light-incident surface (1) and the light-emitting surface (2) are planes, the light-reflecting surface (3) is a curved surface, and the included angle between the tangent of any point on the light-reflecting surface (3) and the light-emitting surface (2) is 80-100 degrees.
6. The light guide strip of claim 1, wherein: the light-emitting surface (2) of the light-guiding strip is bonded with the substrate (5) through high transparent adhesive, and the refractive index of the transparent adhesive is larger than 1.4.
7. A light guide device, characterized in that: the light guide strip comprises a substrate (5), a light guide film (6) arranged on the surface of the substrate (5) and the light guide strip as claimed in any one of claims 1 to 6, wherein the light emergent surface (2) of the light guide strip is attached to the surface of the substrate (5), and the light guide strip is positioned at any position on the surface of the substrate (5).
8. A light guide device according to claim 7, wherein: the light guide strip is attached to the surface of the substrate (5) and is close to the side edge of the substrate (5).
9. A light guide device according to claim 7, wherein: and a light source (4) is correspondingly arranged at the position of the light guide strip light incident surface (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010213905.2A CN111273390A (en) | 2020-03-24 | 2020-03-24 | Light guide strip and light guide device with same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010213905.2A CN111273390A (en) | 2020-03-24 | 2020-03-24 | Light guide strip and light guide device with same |
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| CN111273390A true CN111273390A (en) | 2020-06-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114690306A (en) * | 2022-02-21 | 2022-07-01 | 浙江彩丞科技有限公司 | Luminescent glass, light inlet device and light guide prism manufacturing method |
| CN115823532A (en) * | 2022-12-07 | 2023-03-21 | 福耀玻璃工业集团股份有限公司 | Light incidence structure, vehicle window and vehicle |
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| US20060251377A1 (en) * | 2005-05-09 | 2006-11-09 | Samsung Electronics Co., Ltd. | Backlight assembly and display device having the same |
| CN103105642A (en) * | 2013-02-26 | 2013-05-15 | 佘晓峰 | Light-extraction film and production method of the same |
| CN106352304A (en) * | 2016-10-19 | 2017-01-25 | 武汉华星光电技术有限公司 | Light guide plate structure and backlight module |
| CN206497221U (en) * | 2017-02-14 | 2017-09-15 | 东莞市尚邦光电科技有限公司 | A kind of level enters light type light guide plate |
| CN109212656A (en) * | 2017-07-03 | 2019-01-15 | 京东方科技集团股份有限公司 | Leaded light component, backlight module and display device |
| CN211454018U (en) * | 2020-03-24 | 2020-09-08 | 杭州矽能新材料有限公司 | Light guide strip and light guide device with same |
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