End-lighting type ultra-thin stereoscopic effect atmosphere lamp optical system

Abstract

The application discloses an end-lighting type ultra-thin stereoscopic effect atmosphere lamp optical system, which mainly comprises a support, a lens, a diffusion plate, a light guide plate and at least one PCBA. The diffusion plate is in a thin plate structure. According to the above technical scheme, the light emitted by the LED lamp beads on the PCBA is first guided to the diffusion plate through the light guide plate, then is mixed and homogenized by the diffusion plate, and finally is emitted to the corresponding stereoscopic light emitting unit, so that the stereoscopic light emitting units of the inner lens can achieve excellent optical effects, thereby the light-in area of the existing stereoscopic effect thick wall light guide is cancelled, the width of the atmosphere lamp is greatly reduced, the atmosphere lamp is suitable for being installed on a car instrument desk and also suitable for being installed on a narrow space car door interior panel, and then the ring type stereoscopic atmosphere lamp lighting effect can be realized in the car; meanwhile, the light guide plate cooperates with the small size PCBA, so that the stereoscopic light emitting units can realize overall lighting, flickering and color change and other stereoscopic light emitting effects, and the cost is relatively low.

Description

Technical Field

[0001] This invention relates to the field of automotive ambient lighting technology, specifically to an end-light-intake type ultra-thin three-dimensional ambient lighting optical system. Background Technology

[0002] Currently, linear ambient lights are usually based on linear light guide structures. Whether it is a hidden linear light source ambient light or a direct-light linear light source ambient light, they all achieve the ambient light effect of linear emission based on linear light guides. The lighting effect is monotonous and lacks a sense of three-dimensionality.

[0003] To this end, the applicant previously filed Chinese patent application CN115164120A, which discloses a three-dimensional linear ambient light structure. Based on a three-dimensional thick-walled light guide (equivalent to the inner lens of this application), the design of a large three-dimensional light-emitting surface greatly increases the width of the light-emitting band, making it easy to achieve a width at the centimeter level. This allows the light guide to present a highly three-dimensional light-emitting effect. Furthermore, due to its three-dimensional shape, the large three-dimensional light-emitting surface is aesthetically pleasing, allowing the linear ambient light to be clearly seen even when it is off. This enables the linear ambient light to be used as interior decoration in a car even when it is off.

[0004] Then, in order to enhance the three-dimensional effect of the thick-walled light guide structure and overcome the problems of its monotonous color and insufficient contrast when used as a decorative component, the applicant also applied for Chinese Patent CN115933046A, which discloses a piano key effect dashboard ambient light structure. Based on the piano key effect, the thick-walled light guide (equivalent to the inner lens of this application) not only ensures the light guiding effect, but also enhances the three-dimensional effect of the overall shape of the thick-walled light guide by alternating the protruding and light-transmitting white key protrusions with the opaque black key strips, forming a black and white piano key appearance effect with good aesthetics. Furthermore, the use of black and white contrast color scheme creates a strong color contrast, further enhancing the overall aesthetic appeal.

[0005] However, in practical applications, the applicant found that the light inlet and light outlet bands of the thick-walled light guides of the two types of three-dimensional ambient lights are arranged side by side along the width direction of the light-transmitting component. As a result, in order to ensure the optical effect, the minimum width of the ambient lights using the two types of thick-walled light guides can only be 48mm (i.e., shape width + light mixing width + PCBA width ≥ 48mm). Therefore, due to the width requirement, they cannot be installed on the door interior panel and can only be installed on the dashboard. They cannot form a unified wraparound three-dimensional ambient light effect.

[0006] Solving these problems is now a top priority. Summary of the Invention

[0007] To address the technical problem that existing 3D ambient lighting based on thick-walled light guides is too wide to be installed on car door interior panels, this invention provides an end-light-advancing ultra-thin 3D ambient lighting optical system.

[0008] The technical solution is as follows:

[0009] An end-light-intake ultra-thin three-dimensional ambient lighting optical system includes a bracket and an inner lens and a light guide plate respectively installed on both sides of the bracket in the thickness direction. A PCBA is installed at least one end of the bracket in the length direction. Each PCBA integrates at least one LED. The light-emitting surface of each LED in the PCBA is directly opposite the light-intake end face of the corresponding end of the light guide plate. The inner lens is provided with multiple three-dimensional light-emitting units that can transmit light outward. A diffuser plate is installed on the bracket. The diffuser plate has a thin plate structure and is located between the inner lens and the PCBA. The diffuser plate has light mixing and homogenizing units that correspond one-to-one with each three-dimensional light-emitting unit. The light emitted from each LED enters the light guide plate after passing through the corresponding light-intake end face, and is then directed by the light guide plate to each light mixing and homogenizing unit. After being mixed and homogenized by each light mixing and homogenizing unit, the light is directed to the corresponding three-dimensional light-emitting unit and emitted outward from the three-dimensional light-emitting unit.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. The light emitted from the LED beads on the PCBA is first guided by the light guide plate to the diffuser plate, and then mixed and homogenized by the light mixing and homogenizing units of the diffuser plate before being directed to the corresponding three-dimensional light-emitting units. This ensures that the three-dimensional light-emitting units of the inner lens can achieve excellent optical effects. Moreover, the diffuser plate is a thin plate structure, which eliminates the light-inlet strip of the existing thick-walled light guide for three-dimensional effects. This allows the width of the ambient light based on the surface light-inlet ultra-thin three-dimensional effect ambient light optical system to be controlled within 20mm, which greatly reduces the width of the ambient light. This makes the ambient light suitable for installation on car dashboards and also suitable for installation on narrow door interior panels, thereby achieving a wraparound three-dimensional ambient light effect inside the car.

[0012] 2. The light guide plate, combined with the small-sized PCBA at its end, is not only relatively inexpensive, but also enables each three-dimensional light-emitting unit to achieve three-dimensional light-emitting effects such as overall lighting, flashing, and color changes, which has a high sense of technology and sophistication. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram from one perspective of an embodiment of an end-light-intake ultra-thin three-dimensional ambient lighting system.

[0014] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of an end-light-intake ultra-thin three-dimensional ambient lighting system.

[0015] Figure 3 An exploded view of an embodiment of an end-lit ultra-thin three-dimensional ambient lighting system;

[0016] Figure 4 A cross-sectional view of an embodiment of an end-light-advanced ultra-thin three-dimensional ambient lighting system;

[0017] Figure 5 This is a schematic diagram of the structure of one angle of the inner lens in Embodiment 1 of the end-light-intake ultra-thin three-dimensional effect ambient lighting optical system;

[0018] Figure 6 This is a structural schematic diagram of the inner lens from another perspective in Embodiment 1 of the end-light-intake ultra-thin three-dimensional effect ambient lighting optical system;

[0019] Figure 7 A schematic diagram illustrating the relationship between the bracket and the diffuser plate in Embodiment 1 of an end-light-advanced ultra-thin three-dimensional ambient lighting optical system;

[0020] Figure 8 A schematic diagram of the support structure for an embodiment of the end-light-intake ultra-thin three-dimensional ambient lighting optical system;

[0021] Figure 9 This is a schematic diagram of the structure of an embodiment two of an end-light-intake ultra-thin three-dimensional ambient lighting system. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0023] Example 1:

[0024] like Figures 1-8 As shown, an end-light-advanced ultra-thin 3D ambient lighting optical system mainly includes a bracket 300, a lens 100, a diffuser plate 200, a light guide plate 600, and at least one PCBA 800. The bracket 300 is an elongated structure, with the inner lens 100 and the light guide plate 600 respectively covering both sides of the bracket 300 in the thickness direction. The diffuser plate 200, the inner lens 100, and the light guide plate 600 are all elongated thin plate structures. The diffuser plate 200 is also mounted on the bracket 300 and located between the inner lens 100 and the light guide plate 600.

[0025] Each PCBA800 integrates at least one LED bead 801, and each PCBA800 is located at a corresponding end along the length of the light guide plate 600. When the light guide plate 600 is short, placing a PCBA800 at only one end of the light guide plate 600 is sufficient to ensure sufficient uniform illumination of the overall brightness of the light guide plate 600. When the light guide plate 600 is long, PCBA800s are placed at both ends of the light guide plate 600 to ensure sufficient uniform illumination of the overall brightness of the light guide plate 600. Both ends of the light guide plate 600 along its length are light-inlet end faces 601, and the light-emitting surfaces of each LED bead 801 of the PCBA800 are directly opposite the light-inlet end face 601 of the corresponding end of the light guide plate 600.

[0026] In this embodiment, the inner lens 100 is provided with a plurality of three-dimensional light-emitting units that can transmit light outward, and the bracket 300 is equipped with a diffuser plate 200. The diffuser plate 200 has a light mixing and homogenizing unit 204 that corresponds to each of the three-dimensional light-emitting units. The light emitted from each LED bead 801 enters the light guide plate 600 through the corresponding light-inlet end face 601, and is then directed by the light guide plate 600 to each light mixing and homogenizing unit 204. After being mixed and homogenized by each light mixing and homogenizing unit 204, the light is directed to the corresponding three-dimensional light-emitting unit and then emitted outward from the three-dimensional light-emitting unit.

[0027] Therefore, since the diffuser plate 200 is a thin plate structure, the light emitted from the LED beads 801 on the PCBA800 is first guided to the diffuser plate 200 by the light guide plate 600, and then mixed and homogenized by the light mixing and homogenizing units 204 of the diffuser plate 200, and then directed to the corresponding three-dimensional light-emitting unit, and emitted outward from the three-dimensional light-emitting unit. This ensures that the three-dimensional light-emitting units of the inner lens 100 can achieve excellent optical effects. Moreover, since the diffuser plate is a thin plate structure, the light-inlet strip of the existing three-dimensional effect thick-walled light guide is eliminated, so that the width of the ambient light based on the surface light-inlet ultra-thin three-dimensional effect ambient light optical system can be controlled within 20mm, which greatly reduces the width of the ambient light. This makes the ambient light suitable for installation on the car dashboard and also suitable for installation on the narrow door interior panel, thus achieving a wraparound three-dimensional ambient light effect inside the car.

[0028] Furthermore, each LED bead 801 is an RGB-LED bead, enabling simultaneous color changes for each three-dimensional light-emitting unit. Simultaneously, the light guide plate 600, in conjunction with the small-sized PCBA 800 located at its end, not only significantly reduces the cost of the PCBA, making the overall cost relatively low, but also enables each three-dimensional light-emitting unit to achieve three-dimensional lighting effects such as overall illumination, flashing, and color changes, resulting in a high level of technological sophistication and premium feel.

[0029] It should be noted that the light guide plate 600 is a conventional ambient light guide plate, which is made of transparent plastic. The surface of the light guide plate 600 away from the diffuser plate 200 has a frosted, textured, or other diffuse reflection structure to ensure that a large amount of light is emitted towards the diffuser plate 200.

[0030] In this embodiment, the diffuser plate 200 is preferably made of milky white translucent plastic material, which not only has a good light diffusion effect and plays a role in ultra-short distance light mixing and uniform light, but also has a low cost.

[0031] Furthermore, the diffuser plate 200 can also be made of transparent plastic, with a textured or other diffuse reflection structure on its surface, which can also achieve good light diffusion, enabling ultra-short-distance light mixing and uniform light, while being inexpensive.

[0032] Furthermore, the diffuser plate 200 can also be made of milky white translucent plastic material, and its surface is also provided with a diffuse reflection structure such as leather texture, which can further improve the light mixing and light uniformity effect of the diffuser plate 200.

[0033] The bracket 300 has a diffuser plate mounting groove 301 adapted to the diffuser plate 200. The diffuser plate 200 is installed at the bottom of the diffuser plate mounting groove 301. The inner lens 100 is coveredly installed at the opening of the diffuser plate mounting groove 301. Furthermore, the inner lens 100 is parallel to the inner diffuser plate 200 to improve the optical effect.

[0034] Similarly, the bracket 300 has a light guide plate mounting groove 309 that matches the light guide plate 600. The light guide plate 600 is installed in the light guide plate mounting groove 309, which is simple and reliable. Specifically, several light guide plate snap-fit ​​connectors 310 that match the light guide plate 600 are provided on both sides of the groove wall in the width direction of the light guide plate mounting groove 309. After the light guide plate 600 is snapped into each light guide plate snap-fit ​​connector 310, it is supported on each strip support rib 308a, ensuring the reliable installation of the light guide plate 600.

[0035] Furthermore, several light guide plate limiting ribs 312 are provided on both sides of the groove wall in the width direction of the light guide plate mounting groove 309. The outer edges of both sides of the light guide plate 600 in the width direction abut against the corresponding light guide plate limiting ribs 312, thereby enabling the light guide plate 600 to be installed more tightly and avoiding abnormal noise caused by shaking.

[0036] In this embodiment, the inner lens 100 includes a light-transmitting plate 110 that can transmit light and a light-blocking plate 120 that can block light. The inner surface of the light-transmitting plate 110 is the light-inlet surface, and the outer surface of the light-transmitting plate 110 protrudes to form a plurality of three-dimensional light-emitting units. The light-blocking plate 120 is disposed on the outer side of the light-transmitting plate 110. The light-blocking plate 120 has a plurality of light-emitting unit through holes 121 that are adapted to each three-dimensional light-emitting unit. Each three-dimensional light-emitting unit protrudes outward and passes through the corresponding light-emitting unit through hole 121.

[0037] Therefore, this inner lens 100 is equivalent to the stereoscopic thick-walled light guide in Chinese patents CN217540539U and CN219222199U and Chinese patent application CN115158156A. Through its various stereoscopic light-emitting units, the inner lens 100 can achieve both simple overall lighting and flashing effects, and can also independently work with RGB LEDs to achieve complex stereoscopic effects such as flowing water, rhythm, and color block changes, significantly enhancing the technological and premium feel of the linear ambient lighting. Furthermore, when used in lower-spec models, it eliminates the need for PCBA and wiring harnesses, allowing it to be used directly as a linear decorative strip. This eliminates the need for new interior panels or decorative parts, significantly reducing costs and simplifying parts management. More importantly, the inner lens 100 uses a light-shielding plate 120 covering the outer surface of the light-transmitting plate 110. Simultaneously, the through-holes 121 of each light-emitting unit on the light-shielding plate 120 correspond one-to-one around each stereoscopic light-emitting unit, thus preventing light leakage between adjacent stereoscopic light-emitting units.

[0038] The three-dimensional light-emitting units can be arranged linearly along the length of the light-transmitting plate 110, or they can be randomly distributed. Furthermore, the size of each three-dimensional light-emitting unit does not have to be completely uniform; it can be designed according to aesthetic requirements.

[0039] In this embodiment, the light-transmitting plate 110 and the light-shielding plate 120 are preferably integrally molded using a two-color injection molding process, making their structure stable, reliable, and strong. The light-shielding plate 120 is preferably made of black plastic, while the light-transmitting plate 110 is preferably made of colorless or light-colored plastic that allows light to pass through, creating a strong color contrast when the ambient light is not lit, thus enhancing the overall aesthetic appeal.

[0040] In this embodiment, the three-dimensional light-emitting unit is composed of multiple light-emitting protrusions 111, which have a good three-dimensional shape and flexible design.

[0041] To further enhance the anti-light-spreading effect, the surface of the light-transmitting plate 110 near the diffuser plate 200 is recessed to form several unit anti-light-spreading grooves 112. The projection of each unit anti-light-spreading groove 112 on the surface of the light-transmitting plate 110 away from the diffuser plate 200 is located between two adjacent three-dimensional light-emitting units. At the same time, the diffuser plate 200 is provided with unit anti-light-spreading slits 201 that correspond one-to-one with each unit anti-light-spreading groove 112. The area between adjacent unit anti-light-spreading slits 201 is a light mixing and homogenizing unit 204. Most importantly, the diffuser plate mounting groove 301 is provided with unit light-blocking ribs 302 that correspond one-to-one with each unit anti-light-spreading groove 112. Each unit light-blocking rib 302 passes through the corresponding unit anti-light-spreading slit 201 and is inserted into the corresponding unit anti-light-spreading groove 112.

[0042] It should be noted that the bracket 300 is integrally molded from light-shielding plastic material, preferably black plastic, which has good light-shielding properties and is recyclable, resulting in low cost. Therefore, the light-shielding performance of the light-blocking rib 302 is excellent. Each unit's light-blocking rib 302 passes through the corresponding unit's anti-light-crossing slit 201 and is then inserted into the corresponding unit's anti-light-crossing groove 112. This allows each unit's light-blocking rib 302 to simultaneously physically partition and separate the light-transmitting plate 110 and the diffuser plate 200, completely eliminating the problem of light crossing between adjacent light-mixing and light-diffusing units 204 and adjacent three-dimensional light-emitting units, thus ensuring the optical effect of the ambient light based on the surface-mounted ultra-thin three-dimensional effect ambient lighting optical system.

[0043] In this embodiment, the three-dimensional light-emitting unit is composed of multiple light-emitting protrusions 111, and each light-emitting protrusion 111 is distributed in a circumferential array. Through this design, the shape of each three-dimensional light-emitting unit is not abrupt and has a high aesthetic appeal.

[0044] Since the optical effect would be unsatisfactory if the light-transmitting plate 110 and the diffuser plate 200 were to be attached together, in this embodiment, the outer edge of the surface of the light-transmitting plate 110 near the diffuser plate 200 is formed with circumferentially distributed gap support protrusions 114. The surface of the diffuser plate 200 near the light-transmitting plate 110 is simultaneously supported on each gap support protrusion 114, thereby leaving a gap between the light-transmitting plate 110 and the diffuser plate 200. At the same time, due to point contact, the problem of friction noise can be avoided to the greatest extent. Furthermore, the gap between the light-transmitting plate 110 and the diffuser plate 200 is greater than or equal to 0.5 mm, which can better improve the optical effect. In order to make the ambient light thinner, the height of each gap support protrusion 114 is preferably 0.5 mm, that is, the gap between the light-transmitting plate 110 and the diffuser plate 200 is equal to 0.5 mm.

[0045] In this embodiment, a component mounting bracket 308 is provided in the middle of the bracket 300. The component mounting bracket 308 divides the interior of the bracket 300 into a diffuser plate mounting groove 301 and a light guide plate mounting groove 309. The light guide plate mounting groove 309 is located on the side of the diffuser plate mounting groove 301 away from the inner lens 100. The light guide plate 600 and the diffuser plate 200 are supported on the component mounting bracket 308 from both sides, ensuring the installation reliability of the light guide plate 600 and the diffuser plate 200.

[0046] Furthermore, some of the strip support ribs 308a protrude to form component support protrusions 308a1 on the side near the diffuser plate 200, and some of the strip support ribs 308a also protrude to form component support protrusions 308a1 on the side near the light guide plate 600. The diffuser plate 200 and the light guide plate 600 are respectively supported on the corresponding component support protrusions 308a1. Thus, through point contact, the problem of frictional noise between the diffuser plate 200 and the light guide plate 600 and the component mounting bracket 308 can be avoided to the greatest extent.

[0047] For the mounting and fixing of the inner lens 100 on the bracket 300, in this embodiment, a plurality of screw posts 115 are formed on the protrusion of the surface of the light-transmitting plate 110 near the diffuser plate 200. The diffuser plate 200 has positioning grooves 203 that are adapted to each screw post 115. Some of the strip-shaped support ribs 308a have screw seats 304 that are adapted to the corresponding screw posts 115. Each screw post 115 is inserted into its corresponding positioning groove 203 and contacts the end face of its corresponding screw seat 304. Then, a plurality of locking screws are used to lock the corresponding screw seat 304 and screw post 115. That is, the locking screw 115 passes through the screw seat 304 and locks itself in the corresponding screw post 115. The head of the locking screw 115 remains on the screw seat 304, and the threaded part of the locking screw 115 is screwed into the screw post 115. This design ensures a reliable connection between the inner lens 100, the diffuser plate 200, and the support 300, while also allowing the diffuser plate 200 to be positioned using screw posts 115. Furthermore, some of the screw posts 115 can also be used to eject the mold during injection molding demolding.

[0048] Please see Figure 3 , Figure 4 , Figure 5 and Figure 7 In this embodiment, the outer circumferential edge of the light-shielding plate 120 protrudes beyond the light-transmitting plate 110 to form an annular support edge 122. The annular support edge 122 extends beyond the outer circumferential edge of the light-transmitting plate 110, which can achieve a better light-blocking effect.

[0049] Most importantly, an annular support edge 122 has a recessed annular light-blocking groove 123 on the side away from the lampshade. The bracket 300 has a cylindrical structure. The edge of the bracket 300 near the lampshade 500 is an annular support surface 305 that matches the annular support edge 122. An annular light-blocking rib 306 that matches the annular light-blocking groove 123 is formed on the annular support surface 305. The inner lens 100 covers the side of the bracket 300 near the lampshade 500, and the annular support edge 122 is supported on the annular support surface 305. At the same time, the annular light-blocking rib 306 is embedded in the annular light-blocking groove 123.

[0050] Therefore, the annular light-blocking rib 306 cooperates with the annular light-blocking groove 123 to form a "Z"-shaped annular overlapping structure with the annular support edge 122 and the annular support surface 305. This can reliably block the gap between the bracket 300 and the light-blocking plate 120, preventing the light emitted from the light-transmitting plate 110 from leaking out through the gap between the bracket 300 and the light-blocking plate 120, thus playing a good role in preventing light leakage.

[0051] Please see Figure 8 Since a PCBA with integrated LED beads is arranged at one or both ends of the light guide plate 600, the two ends of the light guide plate 600 are the light mixing parts, and the lighting effect of the light mixing parts is very poor. Therefore, in this embodiment, both ends of the component mounting bracket 308 are provided with light mixing shields 311. The two light mixing shields 311 respectively block the corresponding light mixing parts of the light guide plate, thereby effectively preventing the light emitted from the light mixing parts of the light guide plate from escaping from the lampshade panel 510, and ensuring the overall lighting effect of the ambient light.

[0052] Example 2:

[0053] like Figure 9 As shown, the end-light-inlet ultra-thin three-dimensional effect ambient lighting system of this embodiment has a structure that is basically the same as that of the end-light-inlet ultra-thin three-dimensional effect ambient lighting system of embodiment one. The difference is that the three-dimensional light-emitting unit of this embodiment is composed of a light-emitting protrusion 111. The outer end face of each light-emitting protrusion 111 in this embodiment can be a diamond face or other irregular structure, which can also achieve a three-dimensional light-emitting effect and has a good appearance when it is turned off.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention. Those skilled in the art, under the guidance of the present invention, can make various similar representations without departing from the spirit and claims of the present invention, and such modifications all fall within the protection scope of the present invention.

Claims

1. An end-light-intake ultra-thin three-dimensional ambient lighting optical system, comprising a bracket and inner lenses and a light guide plate respectively mounted on both sides of the bracket in the thickness direction, wherein a PCBA is mounted at least one end of the bracket in the length direction, and at least one LED bead is integrated on each PCBA, the light-emitting surface of each LED bead of the PCBA is directly facing the light-intake end face of the corresponding end of the light guide plate, and the inner lens is provided with a plurality of three-dimensional light-emitting units capable of transmitting light outward, characterized in that: A diffuser plate is installed on the bracket. The diffuser plate has a thin plate structure and is located between the inner lens and the PCBA. The diffuser plate has light mixing and homogenizing units that correspond one-to-one with each three-dimensional light-emitting unit. The light emitted from each LED enters the light guide plate through the corresponding light-inlet end face, and is then directed by the light guide plate to each light mixing and homogenizing unit. After being mixed and homogenized by each light mixing and homogenizing unit, the light is directed to the corresponding three-dimensional light-emitting unit and then emitted outward from the three-dimensional light-emitting unit.

2. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 1, characterized in that: The diffuser plate is made of milky white translucent plastic material.

3. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 1 or 2, characterized in that: The surface of the diffuser plate has a diffuse reflection structure.

4. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 1, characterized in that: The inner lens includes a light-transmitting plate that can transmit light and a light-blocking plate that can block light. The surface of the light-transmitting plate away from the diffuser plate protrudes to form the three-dimensional light-emitting unit. The light-blocking plate is located on the side of the light-transmitting plate away from the diffuser plate and has a plurality of light-emitting unit through holes adapted to each three-dimensional light-emitting unit. Each three-dimensional light-emitting unit protrudes outward and passes through the corresponding light-emitting unit through hole.

5. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 4, characterized in that: The three-dimensional light-emitting unit consists of a light-emitting boss.

6. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 4, characterized in that: The three-dimensional light-emitting unit is composed of multiple light-emitting protrusions.

7. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 5 or 6, characterized in that: The light-transmitting plate has a recessed surface near the diffuser plate, forming several unit anti-light-spreading grooves. The projection of each unit anti-light-spreading groove on the surface of the light-transmitting plate away from the diffuser plate is located between two adjacent three-dimensional light-emitting units. The bracket has a diffuser plate mounting groove, the diffuser plate is installed in the diffuser plate mounting groove, and the diffuser plate has a unit anti-light slit that corresponds to the anti-light slit of each unit. The area between adjacent unit anti-light slits is the light mixing and homogenizing unit. The diffuser plate mounting groove is provided with unit light-blocking ribs that correspond one-to-one with the anti-light-spreading grooves of each unit. Each unit light-blocking rib passes through the corresponding unit anti-light-spreading seam and is inserted into the corresponding unit anti-light-spreading groove.

8. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 1, characterized in that: The middle part of the bracket is composed of several strip support ribs forming a grid-like hollow structure for the component mounting frame. This component mounting frame divides the interior of the bracket into a diffuser plate mounting slot and a light guide plate mounting slot. The diffuser plate is installed at the bottom of the diffuser plate mounting slot, the inner lens covers the opening of the diffuser plate mounting slot, and the light guide plate is installed in the light guide plate mounting slot.

9. The end-light-advancing ultra-thin three-dimensional ambient lighting optical system according to claim 8, characterized in that: Some of the strip support ribs protrude from the side near the diffuser plate and some of the strip support ribs near the light guide plate to form component support protrusions. The diffuser plate and the light guide plate are respectively supported on the corresponding component support protrusions.

Images