Strip effect infinite reflection atmosphere lamp structure with gradient on both sides

Abstract

The utility model discloses a strip effect is to both sides gradient gradually infinite reflection atmosphere lamp structure, including the light guide plate of adopting the light -transmitting material and the PCBA and lamp shade of setting respectively in the thickness direction both sides of light guide plate, the surface of light guide plate is close to the lamp shade one side is equipped with the isolation band along its length direction extension and is equipped with two groups infinite reflection structure respectively in the both sides of isolation band. Adopt above infinite reflection atmosphere lamp structure, because the lamp shade has half -and -half function, the light of the light band is emitted and is not stop reflecting between the lamp shade and total reflection layer simultaneously can emit the lamp shade part, thereby based on pure optical structure, only need a row LED lamp pearl, can realize the light effect of weakening lamp area from the middle, low cost, need not electronic control simultaneously, and the reliability is high, and, optical structure only is composed of light guide plate, PCBA and lamp shade, is identical with traditional light -guide type atmosphere lamp, effectively solved the technical problem of more optical elements of present infinite reflection effect atmosphere lamp, the cost is high.

Description

Technical Field

[0001] This utility model relates to the field of lighting device technology, specifically to an infinite reflection ambient light structure with a strip effect that gradually changes towards both sides. Background Technology

[0002] With technological advancements and increasing consumer demands for aesthetic appeal, ambient lighting is being used more and more in automotive interiors, home décor, and commercial displays. Traditional light-guided ambient lights often employ a uniform light guide design, resulting in a single light intensity distribution that fails to achieve a natural gradient effect. To address this, some ambient lights rely on electronic control (such as PWM dimming) to achieve an infinite reflection gradient light effect, but their circuitry is complex and their cost remains high.

[0003] For this purpose, please refer to Chinese Utility Model Patent Application No. 2025215921101. The applicant in this application designed an ambient light that could achieve an infinite reflection effect based on a purely optical structure. However, it could not achieve a gradual light effect of the light strip weakening from both sides to the middle. Furthermore, the aforementioned ambient light not only had the light source, inner lens (or light guide plate), and lampshade required by traditional ambient lights, but also added a total reflection mirror, resulting in a large number of optical components and a higher cost.

[0004] Solving these problems is now a top priority. Utility Model Content

[0005] To address the technical problems of existing ambient lights that can achieve infinite reflection effects, which not only fail to achieve a gradual light strip effect that weakens from both sides to the center, but also have a large number of optical components and high costs, this utility model provides an infinite reflection ambient light structure with a strip effect that gradually changes towards both sides.

[0006] The technical solution is as follows:

[0007] The first aspect of this application relates to an infinite reflection ambient light structure with a gradient gradient of strip effect to both sides, including a light guide plate made of a light-transmitting material and a PCBA and a lampshade respectively disposed on both sides of the thickness direction of the light guide plate. The surface of the light guide plate near the lampshade is provided with an isolation strip extending along its length direction and two sets of infinite reflection structures respectively disposed on both sides of the isolation strip. Each set of infinite reflection structures is composed of a light-emitting strip and a reflective surface arranged sequentially in the direction away from the isolation strip. The two light-emitting strips are inclined or curved surface structures formed by gradually decreasing from the outer edge of the corresponding side of the isolation strip. The two reflective surfaces are inclined or curved surface structures formed by gradually increasing from the outer edge of the corresponding light-emitting strip away from the isolation strip. The surfaces of the isolation strip and the two reflective surfaces are all provided with a total reflection layer.

[0008] The PCBA integrates a row of LED beads facing the isolation strip and the light-emitting strips on both sides. The light emitted by this row of LED beads passes through the two light-emitting strips and then shines on the lamp cover. Some of the light passes through the lamp cover, and the remaining light is reflected back to the corresponding reflective surface by the lamp cover.

[0009] The above-mentioned infinite reflection ambient light structure, which features a gradient effect that gradually changes from the strip to both sides, utilizes a lampshade with a semi-transparent and semi-reflective function. The light emitted from the light strip is continuously reflected between the lampshade and the total reflection layer, while also passing through part of the lampshade. Therefore, based on a purely optical structure, only a row of LED beads is needed to achieve a gradient light effect that weakens from the middle. This is cost-effective, requires no electronic control, and is highly reliable. Furthermore, the optical structure consists only of a light guide plate, PCBA, and lampshade, consistent with traditional light guide ambient lights. This effectively solves the technical problem of existing infinite reflection ambient lights having many optical components and high costs. Attached Figure Description

[0010] Figure 1 A schematic diagram of an infinite reflection ambient light;

[0011] Figure 2 A cross-sectional view of an infinite reflective ambient light;

[0012] Figure 3 A schematic diagram of the light path for an infinite reflection ambient light;

[0013] Figure 4 This is a schematic diagram of the lighting effect of an infinite reflection ambient light.

[0014] Figure 5 A schematic diagram of the structure of an infinite reflection ambient light after the lampshade has been removed;

[0015] Figure 6 A schematic diagram of the structure of an infinite reflection ambient light after removing the lampshade and light guide plate;

[0016] Figure 7 This is a schematic diagram of the light guide plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0018] like Figures 1-7 As shown, an infinite reflection ambient light structure with a strip effect that gradually changes in gradient to both sides mainly includes a light guide plate 1, a PCBA2, and a lampshade 3, and the light guide plate 1, PCBA2, and lampshade 3 constitute the optical system of the ambient light.

[0019] The light guide plate 1 is made of a light-transmitting material, and its main function is to diffuse and homogenize light. For example, it can be made of PMMA material doped with a diffusing agent and integrally molded through injection molding. PCBA2 and lampshade 3 are respectively set on both sides of the thickness direction of the light guide plate 1, that is: PCBA2 is set on the inner side of the thickness direction of the light guide plate 1, and lampshade 3 is set on the outer side of the thickness direction of the light guide plate 1.

[0020] An isolation strip 12 extending along its length direction is provided on the side surface (outer side) of the light guide plate 1 near the lamp cover 3. Specifically, the isolation strip 12 penetrates the light guide plate 1 along its length direction. Two sets of infinite reflection structures 11 are respectively arranged on both sides of the isolation strip 12. That is, on the side surface (outer side) of the light guide plate 1 near the lamp cover 3, one set of infinite reflection structures 11, the isolation strip 12 and the other set of infinite reflection structures 11 are arranged sequentially along the width direction of the light guide plate 1.

[0021] In this embodiment, both sets of infinite reflection structures 11 are composed of light-emitting bands 111 and reflective surfaces 112 arranged sequentially in the direction away from the isolation band 12. That is, the two light-emitting bands 111 are respectively arranged on both sides of the isolation band 12, and the two reflective surfaces 112 are respectively arranged on the side of the corresponding light-emitting band 111 away from the isolation band 12. Both the isolation band 12 and the two light-emitting bands 111 are strip structures, and the surfaces of the isolation band 12 and the two reflective surfaces 112 have a total reflection layer. The total reflection layer can be a plating or a coating; for example, the material of the total reflection layer can be silver or aluminum, which can enhance light reflection efficiency and reduce light loss.

[0022] The two light-emitting bands 111 are sloped or curved surfaces that gradually decrease in height from the outer edge of the corresponding side of the isolation band 12. That is, the two light-emitting bands 111 are sloped or curved surfaces whose height gradually decreases on both sides of the width direction of the light guide plate 1. The two reflective surfaces 112 are sloped or curved surfaces that gradually increase in height from the outer edge of the corresponding light-emitting band 111 away from the isolation band 12. Therefore, the two light-emitting bands 111 are close to the isolation band 12; the two reflective surfaces 112 are close to the outer edges on both sides of the width direction of the light guide plate 1. Thus, in each set of infinite reflection structures 11, the outer edges of the light-emitting bands 111 and reflective surfaces 112 that are close to each other are collinear, and the light-emitting bands 111 and reflective surfaces 112 form a V-shaped structure or an approximately V-shaped structure.

[0023] The PCBA2 integrates a row of LED beads 21 facing the isolation strip 12 and the light-emitting strips 111 on both sides. The lampshade 3 has a semi-transparent and semi-reflective function. Therefore, please refer to... Figure 3 and Figure 4The light emitted from this row of LED beads 21 is simultaneously transmitted through two light-emitting strips 111 and then directed towards the lampshade 3. Part of the light passes through the lampshade 3, while the remaining light is reflected back to the corresponding reflective surface 112. Because the lampshade 3 has a semi-transparent and semi-reflective function, the light transmitted through the light-emitting strips 111 is continuously reflected between the lampshade 3 and the total reflection layer, and a portion of it also passes through the lampshade 3. Therefore, based on a purely optical structure, only one row of LED beads 21 is needed to achieve a gradient light effect that weakens from the middle. This is cost-effective, requires no electronic control, and has high reliability. Furthermore, the optical structure consists only of a light guide plate 1, a PCBA 2, and a lampshade 3, consistent with traditional light guide ambient lights. This effectively solves the technical problem of existing infinite reflection ambient lights having many optical components and high costs.

[0024] The principle behind the gradual light effect of the light strips weakening from the middle to both sides is as follows: the light emitted from the two light-emitting bands 111 passes directly through the lampshade 3 and is refracted to form strong light bands on both sides. The remaining light is reflected back to the total reflection layer by the lampshade 3, and then reflected back to the lampshade by the total reflection layer to form secondary light bands that shift to both sides. After this cycle is repeated many times, the light energy gradually decreases, resulting in the brightness of the light band on the outer side (towards both sides) being significantly weaker than that of the light band on the inner side (towards the middle).

[0025] Furthermore, in order to make the strip gradient effect clearer, the light-emitting strip 111 is preferably treated with a leather texture, so that the uniformity of the first-level strip light (the brightest level) emitted by the lampshade 3 is better.

[0026] Furthermore, in order to reduce the difficulty of the process and make the sense of layering of the infinite reflection effect clearer and more three-dimensional, the light-emitting strip 111 and the reflecting surface 112 in this embodiment are preferably inclined structures.

[0027] Furthermore, in order to obtain a symmetrical gradient light effect of the light strip that weakens from both sides to the middle, the isolation strip 12 in this embodiment is located at the middle position in the width direction of the light guide plate 1, and two sets of infinite reflection structures 11 are symmetrically arranged on both sides of the isolation strip 12.

[0028] Furthermore, in order to create more stripe effects, the width of the reflective surface 112 is greater than the width of the corresponding light-emitting band 111. Correspondingly, the highest point of the reflective surface 112 is greater than the highest point of the corresponding light-emitting band 111.

[0029] In this embodiment, the lampshade 3 is integrally molded from a semi-transparent and semi-reflective material. For example, the lampshade 3 is integrally molded from a highly reflective smoky material. Alternatively, the lampshade 3 can also be integrally molded from a common light-transmitting material. At the same time, the inner surface of the lampshade 3 has a semi-transparent and semi-reflective layer. This semi-transparent and semi-reflective layer can be a plating, a coating, or a film, as long as it can achieve the semi-transparent and semi-reflective function.

[0030] Therefore, this embodiment utilizes the energy attenuation of light through multiple reflections and refractions within the optical structure to form multiple light bands with decreasing light intensity from both sides towards the center. Specifically, through the synergistic effect of the lampshade 3 and the total reflection layer on the reflective surface, light undergoes multiple reflections and refractions within a limited space to form continuous light bands. By adjusting the angle of the reflective surface, the curvature of the lampshade 3 and the reflective surface 112, and the distance between them, the number of light bands, their spacing, and the attenuation gradient can be flexibly controlled, achieving precise regulation of the light band spacing and attenuation rate.

[0031] It should be noted that the optical system of the ambient light, consisting of light guide plate 1, PCBA2 and lampshade 3, can be directly installed on automotive interiors, ceilings, wall panels and other structures.

[0032] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6 This embodiment also includes a lamp housing 4, which has a lamp groove 41 with an opening on one side. The lamp cover 3 is fitted over the opening of the lamp groove 41. The light guide plate 1 and PCBA2 are both installed in the lamp groove 41, thereby making the overall structure of the entire ambient light more complete, more reliable, and easier to install in various places.

[0033] Further, please see Figure 2 as well as Figures 5-7 The outer edge of the reflective surface 112 away from the corresponding light-emitting strip 111 is recessed to form several positioning slots 112a. The lower part of the two side walls of the lamp slot 41 in the width direction is integrally formed with a support step 42 that is adapted to the light guide plate 1. The upper part of the two side walls of the lamp slot 41 in the width direction is integrally formed with a snap connector 43 that corresponds to each positioning slot 112a. The surface of the light guide plate 1 away from the lamp cover 3 is supported on the two support steps 42 at the same time. Each snap connector 43 is snapped into the corresponding positioning slot 112a, so that the light guide plate 1 can be stably and reliably installed on the lamp housing 4.

[0034] Furthermore, the bottom of the light trough 41 is integrally formed with several positioning pins 45, and the PCBA2 has positioning holes 22 that correspond one-to-one with each positioning pin 45, thereby ensuring the accuracy of the PCBA2 installation and positioning. The PCBA2 can be fixedly installed in the light trough 41. In this embodiment, the PCBA2 is preferably installed in the light trough 41 in a detachable manner so that it can be replaced when it fails.

[0035] Please see Figure 1 , Figure 2 , Figure 5 and Figure 6The outer surface of the lamp housing 4 is integrally formed with several mounting clips 44 distributed around the opening of the lamp groove 41. The outer edge of the lamp cover 3 is bent to form a mounting flange 31 that matches the opening of the lamp groove 41. The mounting flange 31 has mounting slots 32 that correspond one-to-one with each mounting clip 44. When the lamp cover 3 is closed on the opening of the lamp groove 41, the mounting flange 31 surrounds the opening of the lamp groove 41, and each mounting clip 44 is inserted into the corresponding mounting slot 32, which not only ensures the reliability of the connection, but also makes it easy to disassemble and assemble.

[0036] Further, please see Figure 2 and Figure 5 The upper edge around the opening of the lamp trough 41 has several supporting protrusions 46. When the lamp cover 3 is placed on the opening of the lamp trough 41, the inner surface of the lamp cover 3 is supported on all the supporting protrusions 46 at the same time, which improves the reliability and stability of the lamp cover 3 installation and reduces the risk of abnormal noise.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model. Those skilled in the art, under the guidance of the present utility model, can make various similar representations without departing from the spirit and claims of the present utility model, and such modifications all fall within the protection scope of the present utility model.

Claims

1. A structure for an infinite reflection ambient light with a gradient effect that changes towards both sides, comprising a light guide plate made of a light-transmitting material and a PCBA and a lampshade respectively disposed on both sides of the thickness direction of the light guide plate, characterized in that: The light guide plate has an isolation strip extending along its length on the side surface near the lamp cover, and two sets of infinite reflection structures respectively arranged on both sides of the isolation strip. Both sets of infinite reflection structures are composed of light-emitting strips and reflective surfaces arranged sequentially in the direction away from the isolation strip. The two light-emitting strips are inclined or curved surfaces formed by gradually decreasing from the outer edge of the corresponding side of the isolation strip. The two reflective surfaces are inclined or curved surfaces formed by gradually increasing from the outer edge of the corresponding light-emitting strip away from the isolation strip. The surfaces of the isolation strip and the two reflective surfaces all have a total reflection layer. The PCBA integrates a row of LED beads facing the isolation strip and the light-emitting strips on both sides. The light emitted by this row of LED beads passes through the two light-emitting strips and then shines on the lamp cover. Some of the light passes through the lamp cover, and the remaining light is reflected back to the corresponding reflective surface by the lamp cover.

2. The infinite reflection ambient light structure according to claim 1, characterized in that: Both the light-emitting band and the reflecting surface have an inclined structure.

3. The infinite reflection ambient light structure according to claim 1, characterized in that: The isolation strip is located in the middle of the width direction of the light guide plate, and two sets of infinite reflection structures are symmetrically arranged on both sides of the isolation strip.

4. The infinite reflection ambient light structure according to any one of claims 1-3, characterized in that: The width of each reflective surface is greater than the width of the corresponding light-emitting band.

5. The infinite reflection ambient light structure according to claim 4, characterized in that: The highest point of the reflecting surface is greater than the highest point of the corresponding light-emitting band.

6. The infinite reflection ambient light structure according to any one of claims 1-3, characterized in that: The lampshade is made of a semi-transparent, semi-reflective material and is molded in one piece.

7. The infinite reflection ambient light structure according to any one of claims 1-3, characterized in that: The lampshade is made of a light-transmitting material and is integrally molded, with a semi-transparent and semi-reflective layer on the inner surface of the lampshade.

8. The infinite reflection ambient light structure according to any one of claims 1-3, characterized in that: It also includes a lamp housing with a lamp groove that has an opening on one side, the lamp cover being fitted over the opening of the lamp groove, and the light guide plate and PCBA being installed in the lamp groove.

9. The infinite reflection ambient light structure according to claim 8, characterized in that: The outer edge of the reflective surface away from the corresponding light-emitting band is recessed to form several positioning slots. The lower part of both sides of the lamp slot in the width direction is integrally formed with a support step adapted to the light guide plate. The upper part of both sides of the lamp slot in the width direction is integrally formed with a snap-fit ​​connector that corresponds to each positioning slot. The surface of the light guide plate away from the lamp cover is simultaneously supported on two support steps, and each snap-fit ​​connector is snapped into the corresponding positioning slot.

10. The infinite reflection ambient light structure according to claim 8, characterized in that: The outer surface of the lamp housing is integrally formed with a plurality of mounting clips distributed around the opening of the lamp slot. The outer circumferential edge of the lamp cover is bent to form a mounting flange that fits the opening of the lamp slot. The mounting flange has mounting slots that correspond one-to-one with each mounting clip. When the lamp cover is closed on the opening of the lamp slot, the mounting flange surrounds the opening of the lamp slot, and each mounting clip is engaged in the corresponding mounting slot.

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