Optical system of multilayer light guiding medium combination

Abstract

The application provides a multi-layer light guide medium combined optical system, comprising: a light source assembly, a light guide strip, a collimating thick-wall block and a thick-wall piece; the light guide strip, the collimating thick-wall block and the thick-wall piece are sequentially arranged along a light emitting direction, the collimating thick-wall block is arranged between the thick-wall piece and the light guide strip; the light source assembly is arranged at a light inlet position of the thick-wall piece and a light inlet position of the light guide strip. The application adopts the multi-layer light guide medium combined optical system, realizes animation lighting from inside to outside, can also realize animation lighting effect of up and down scanning, and can improve the lighting uniformity of the automobile signal lamp while ensuring the light effect.

Description

Technical Field

[0001] This invention relates to the field of automotive lighting technology, specifically to an optical system with a multi-layer light guide medium combination, and more particularly to an optical system with a three-layer light guide medium combination that can achieve dynamic lighting from the inside out and from the top and bottom while improving uniformity. Background Technology

[0002] Generally speaking, automotive headlights need to be designed to meet regulations and also have diverse, aesthetically pleasing, and stylish lighting effects. With increasingly sophisticated aesthetic preferences from consumers and OEMs, diverse dynamic lighting designs are receiving more and more attention, and the ability to achieve multiple functions within a single optical system is becoming a common requirement. Furthermore, there are increasingly higher demands for uniform and consistent lighting.

[0003] Common optical systems for achieving dynamic lighting effects include thick-walled components or reflector bowls. However, the dynamic lighting of optical systems with the same emitting surface is relatively simple and cannot effectively meet the needs of diverse lighting effects. Some common optical systems combine light guides and thick-walled components, with the light guide at the front and the thick-walled component at the rear. This leads to the following problems: a) Due to the uncontrollable stray light from the light guide teeth in the system with the light guide in front and the thick-walled component behind, the uniformity of the entire system is problematic. Existing technologies address this by increasing the depth of the thick-walled component at the rear, thus increasing the overall optical path length and partially compensating for the uniformity defects. However, this does not fundamentally solve the problem; the uniformity of light from the outer light guide remains inherently uncontrollable. b) As mentioned above, to improve uniformity, the depth of the thick-walled component at the rear is increased. However, the available space in the headlight may be insufficient or subject to spatial limitations. The problem is exacerbated by the fact that as headlight designs become increasingly complex, the available design space for headlight depth provided by OEMs is shrinking. Furthermore, increasing the depth of the thick-walled component at the rear can lead to assembly interference with the surrounding components' assembly and positioning structures. Space constraints can also hinder flexible component installation, and the light passing through the thick-walled component and into the light guide may appear messy and chaotic, causing both space and optical effect issues. Finally, this solution cannot simultaneously satisfy uniformity and luminous efficacy, failing to achieve a good balance. Increasing the depth of the thick-walled component improves uniformity but reduces luminous efficacy due to its increased size; conversely, decreasing the depth improves luminous efficacy but reduces uniformity. Current solutions cannot achieve a balance between uniformity and luminous efficacy.

[0004] Therefore, achieving multiple functions with the same optical system while also considering aspects such as uniformity of illumination, luminous efficiency, assembly, and space, as well as diverse and novel dynamic illumination for reuse, is a major bottleneck and challenge in existing technologies. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide an optical system with a multilayer light guide medium combination.

[0006] An optical system based on a multilayer light guide medium combination according to the present invention includes: a light source assembly, a light guide strip, a collimating thick-walled block, and a thick-walled component;

[0007] The light guide strip, the collimating thick-walled block, and the thick-walled component are arranged sequentially along the light emission direction, with the collimating thick-walled block disposed between the thick-walled component and the light guide strip; the light source assembly is disposed at the light inlet position of the thick-walled component and the light inlet position of the light guide strip.

[0008] The light entering the thick-walled component exits from the light-emitting surface of the thick-walled component;

[0009] The light entering the light guide strip is emitted to the collimating thick-walled block, then passes through the collimating thick-walled block and enters the thick-walled component, and finally exits from the light-emitting surface of the thick-walled component.

[0010] Preferably, the light source assembly includes a first LED light source and a second LED light source;

[0011] The first LED light source is located at the focal position corresponding to the incident collimation structure of the thick-walled component;

[0012] The second LED light source is located at the light inlet of the light guide strip.

[0013] Preferably, the thick-walled component is provided with an optical working surface, a light emitting surface, and multiple incident light collimation structures;

[0014] The first LED light source is configured in multiple ways, and the incident light collimation structure is configured in a one-to-one correspondence with the first LED light source;

[0015] Light enters the thick-walled member through the incident collimation structure, is reflected by the optical surface, and exits from the light-emitting surface.

[0016] The optical guide strips are configured in multiple ways;

[0017] The second LED light source is configured in multiple ways, and the multiple light guide strips are configured one-to-one with the multiple second LED light sources;

[0018] Multiple first LED light sources are lit simultaneously or dynamically, and multiple second LED light sources are lit simultaneously or dynamically.

[0019] Preferably, the incident light collimation structure is provided with a first thick-walled optical pattern and a second thick-walled optical pattern;

[0020] The optical working surface is provided with a third thick-walled optical pattern; the light emitting surface is provided with a fourth thick-walled optical pattern.

[0021] Light entering the thick-walled component is refracted by the optical patterns of the first and second thick-walled components and then reaches the optical pattern of the third thick-walled component. After being reflected by the optical pattern of the third thick-walled component, it reaches the optical pattern of the fourth thick-walled component and is then refracted by the optical pattern of the fourth thick-walled component before exiting.

[0022] The light rays emitted from the collimated thick-walled block and entering the thick-walled component are refracted by the optical pattern of the third thick-walled component to the optical pattern of the fourth thick-walled component, and then emitted after being diffused and emitted by the optical pattern of the fourth thick-walled component.

[0023] Preferably, the thick-walled component is provided with an optical working surface, and the optical working surface is provided with a third thick-walled component optical pattern;

[0024] The optical pattern of the third thick-walled component includes a first series of optical patterns and a second series of optical patterns;

[0025] The second series of optical patterns is used to realize the first vehicle light function, and the first series of optical patterns is used to realize the second vehicle light function.

[0026] Preferably, the first series of optical patterns includes a plurality of first refractive collimating surfaces and a plurality of second refractive collimating surfaces;

[0027] Multiple second refractive collimating surfaces are connected by stepped connecting surfaces; the first refractive collimating surface is disposed on one side of the second refractive collimating surface;

[0028] Both the first and second refractive collimating surfaces are used to realize the function of the second vehicle light; the light is refracted and collimated through the light guide strip to the collimating thick-walled block and then refracted to the thick-walled component.

[0029] Preferably, the second series of optical patterns includes multiple reflective surfaces;

[0030] The reflecting surface is connected to the first refractive collimating surface, and the first refractive collimating surface is disposed between adjacent reflecting surfaces;

[0031] At least one of the second refractive collimating surfaces is disposed between two adjacent reflecting surfaces;

[0032] The reflective surface is used to realize the function of the first vehicle light, reflecting the light emitted from the light source assembly in the thick-walled member and collimated by the incident light collimating structure.

[0033] Preferably, the first vehicle light function is any one of the following vehicle light functions: turn signal, daytime running light, position light, reversing light, and brake light;

[0034] The second vehicle light function is any one of the following: turn signal, daytime running light, position light, reversing light, brake light;

[0035] When different primary headlight functions are achieved, the proportion of the second series of optical patterns in the total pattern varies;

[0036] When different functions of the second headlight are achieved, the proportion of the first series of optical patterns in the total pattern varies.

[0037] Preferably, the first vehicle light function is a turn signal function; the second vehicle light function is a daytime running light function;

[0038] In the optical pattern of the third thick-walled component, the number of patterns used to realize the function of the first vehicle light accounts for 25% of the total number of patterns, and the number of patterns used to realize the function of the second vehicle light accounts for 75% of the total number of patterns.

[0039] Preferably, the collimating thick-walled block includes an incident rear side and an exit front side;

[0040] The light-emitting front side includes a first thick-walled block optical pattern and a first stepped connecting surface; the light-incident rear side includes a second thick-walled block optical pattern.

[0041] Light enters the collimating thick-walled block from the light-incident rear side and exits through the light-out front side; the optical patterns of the first and second thick-walled blocks are used to collimate the light.

[0042] The light emitted from the light guide strip is refracted by the second thick-walled block optical pattern and then transmitted to the first thick-walled block optical pattern. After being refracted by the first thick-walled block optical pattern, the light is transmitted to the thick-walled component.

[0043] The first thick-walled block optical pattern includes a third thick-walled block optical pattern and a first connecting pattern surface;

[0044] The optical pattern of the third thick-walled block is used to achieve light emission, and the first connecting pattern surface is connected to at least one of the optical patterns of the third thick-walled block.

[0045] The second thick-walled block optical pattern includes a fourth thick-walled block optical pattern and a second connecting pattern surface;

[0046] The fourth thick-walled block optical pattern is used to achieve the effects of light incident and light refraction, and the second connecting pattern surface is connected to at least one of the fourth thick-walled block optical patterns.

[0047] The plurality of light guide strips are disposed corresponding to the light-incident rear side surface of the collimating thick-walled block; the height of the overall structure formed by the plurality of light guide strips is greater than or equal to the height of the light-incident rear side surface of the collimating thick-walled block; the light-emitting surface of the plurality of light guide strips at least covers the light-incident rear side surface of the collimating thick-walled block.

[0048] Compared with the prior art, the present invention has the following beneficial effects:

[0049] 1. This invention achieves multi-functional optical effects within the same optical system, especially the same light-emitting surface, by employing a distribution structure with a thick-walled component in front, a collimating thick-walled block in the center, and an array of light guide strips behind. It also ensures excellent uniformity of illumination, luminous efficiency, and spatial flexibility. It can achieve both illumination and dynamic illumination. When the same optical system, especially the same light-emitting surface, is dynamically illuminated, it can achieve dynamic illumination effects from the inside out, from top to bottom, or from bottom to top. At the same time, it can improve the illumination uniformity of certain functional lights in automotive signal lights.

[0050] 2. This invention can flexibly and sequentially illuminate the first LED light source of each collimation structure of the thick-walled component, or sequentially illuminate the second LED light source at the light guide strip, to achieve different dynamic illumination. For example, when the first LED light source is a yellow light source, the first LED light source of each collimation structure of the thick-walled component is illuminated sequentially to achieve dynamic illumination of the turn signal; when the second LED light source is a white light source, the second LED light source and the third LED light source at the light guide strip are illuminated sequentially to achieve animated sweep illumination from top to bottom or from bottom to top.

[0051] 3. The first LED light source of the present invention can be a red light source to realize the function of taillight position light or taillight brake light, a yellow light source to realize the function of turn signal, or a white light source to realize the function of headlight daytime running light and position light, or taillight reversing light; similarly, the second LED light source can be a red light source to realize the function of taillight position light or taillight brake light, a white light source to realize the function of headlight daytime running light and position light, or taillight reversing light, or a yellow light source to realize the function of turn signal.

[0052] 4. The first LED light source, second LED light source, and third LED light source of the present invention, wherein the second LED light source and the third LED light source are the same type of light source, or different colors of light sources can be used, so that the entire optical system can simultaneously realize multiple different functions. For example, if the second LED light source and the third LED light source are white light sources, lighting the second LED light source and the third LED light source alone can realize the daytime running light function; if the second LED light source and the third LED light source are yellow light sources, they can realize the turn signal function. Similarly, lighting the first LED light source of different colors alone can also realize different functions. In particular, when the first LED light source, the second LED light source, and the third LED light source are white light, they can be controlled by PWM, and the white light source can realize the position light function, thereby realizing multi-functional lighting in the same area.

[0053] 5. This invention employs a thick-walled optical pattern structure composed of a special combination of a first series of optical patterns and a second series of optical patterns. This structure allows for the selective utilization of certain light rays, thereby achieving a highly efficient optical effect. The number of the first series of optical patterns or the proportion or arrangement of the second series of optical patterns on the optical pattern surface can be adjusted as needed to purposefully improve the efficiency of a certain functional lamp. For example, when it is necessary to improve the efficiency of white light, the proportion of the first series of optical patterns or the second series of optical patterns can be increased, thereby effectively utilizing the light of the system to achieve high efficiency of the entire system.

[0054] 6. This invention employs a collimated thick-walled block structure with optical patterns on both the inner and outer surfaces, making the transmitted light more collimated and the lighting effect more uniform. The optical patterns of the first and second thick-walled blocks can adopt diverse arrangements and multi-angle styles, such as 0-90°. They can be square, columnar, or other variable pattern shapes according to different needs. The size of the pattern angle can also be changed according to different needs to diffuse the light and make the lighting effect more uniform.

[0055] 7. This invention solves the problem of mixed light caused by the light guides being connected by connecting ribs, which results in individual lighting when lit up. It can achieve a dynamic effect of lighting up one light guide at a time. The distribution of the array light guides can be changed according to the width of the shaped surface. In addition, because the array light guides are independently distributed, there are also various lighting methods. For example, a single light guide can be lit up one at a time, or every two or three light guides can be lit up sequentially, or several light guides in the array can be lit up randomly, thereby achieving the desired dynamic lighting effect.

[0056] 8. The thick-walled component of the present invention uses polycarbonate material with ice blue properties, which makes the lighting effect softer and the visual effect better. Attached Figure Description

[0057] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0058] Figure 1 This is a front view of the optical system of the multilayer light guide medium combination of the present invention;

[0059] Figure 2 This is a left view of the optical system of the multilayer light guide medium combination of the present invention;

[0060] Figure 3 This is a top view of the optical system of the multilayer light guide medium combination of the present invention;

[0061] Figure 4 This is a top view of the thick-walled component of the present invention;

[0062] Figure 5 This is a front-view axonometric view of the collimated thick-walled block of the present invention;

[0063] Figure 6 This is a top-view axonometric view of the collimated thick-walled block of the present invention;

[0064] Figure 7 This is a planar schematic diagram of the collimating thick-walled block of the present invention;

[0065] Figure 8 for Figure 7 Enlarged view of part E in the image;

[0066] Figure 9 This is a partially enlarged view of the collimating thick-walled block of the present invention;

[0067] Figure 10 for Figure 9 A view of the F section from the outside to the inside of the light emission direction;

[0068] Figure 11 for Figure 9 A view of part F in the light-emitting direction from the inside out.

[0069] Figure 12 This is an isometric view of the thick-walled component of the present invention from a bottom angle;

[0070] Figure 13 This is an isometric view of the collimated thick-walled block of the present invention;

[0071] Figure 14 This is a top view of the collimating thick-walled block of the present invention;

[0072] Figure 15 for Figure 14 Cross-sectional view along line GG;

[0073] Figure 16This is a partially enlarged view of the optical pattern of the third thick-walled component of the present invention;

[0074] Figure 17 for Figure 16 Enlarged view of part K in the image;

[0075] Figure 18 This is a top view of the collimating thick-walled block and the thick-walled component after assembly according to the present invention;

[0076] Figure 19 for Figure 18 Enlarged view of section H in the image;

[0077] Figure 20 for Figure 19 A magnified view of a portion of the image;

[0078] Figure 21 for Figure 20 Cross-sectional view along the QQ line;

[0079] Figure 22 for Figure 20 Cross-sectional view along the PP line;

[0080] Figure 23 This is a top view of the collimation thick-walled block, the thick-walled component, and the optical guide strip of the present invention after assembly.

[0081] Figure 24 for Figure 23 Enlarged view of part J in the image;

[0082] Figure 25 for Figure 24 Enlarged view of part L in the image;

[0083] Figure 26 for Figure 25 Cross-sectional view along the SS line;

[0084] Figure 27 for Figure 25 Cross-sectional view along line RR;

[0085] Figure 28 A diagram illustrating the dynamic lighting effect from bottom to top when the DRL function is activated;

[0086] Figure 29 The lighting effect is shown from various angles;

[0087] Figure 30 This is a schematic diagram of the lighting method in one embodiment.

[0088] The diagram shows:

[0089] Thick-walled component 100 Third thick-walled block optical pattern 2011

[0090] First thick-walled component optical pattern 101, first connecting pattern surface 2012

[0091] Second thick-walled component optical pattern 102; Second thick-walled block optical pattern 202

[0092] The third thick-walled component has an optical pattern of 103; the fourth thick-walled block has an optical pattern of 2021.

[0093] First series optical pattern 1031, second connecting pattern surface 2022

[0094] First refractive collimation surface 10311; First step connection surface 203

[0095] Second refractive collimating surface 10312, optical guide strip 300

[0096] Second series optical pattern 1032, light guide strip light-emitting surface 301

[0097] Reflective surface 10321, optical teeth 302

[0098] Step connection surface 1033 First LED light source 400

[0099] Fourth thick-walled component optical pattern 104; Second LED light source 500

[0100] Collimation thick-walled block 200, third LED light source 600

[0101] First Thick-Walled Block Optical Pattern 201 Detailed Implementation

[0102] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0103] Example 1:

[0104] like Figures 1-30As shown, this embodiment provides an optical system with a multilayer light guide medium combination, including: a light source assembly, a light guide strip 300, a collimating thick-walled block 200, and a thick-walled member 100. The light guide strip 300, the collimating thick-walled block 200, and the thick-walled member 100 are arranged sequentially along the light emission direction. The collimating thick-walled block 200 is disposed between the thick-walled member 100 and the light guide strip 300. The light source assembly is disposed at the light inlet position of the thick-walled member 100 and the light inlet position of the light guide strip 300. The light entering the thick-walled member 100 is emitted from the light emission surface of the thick-walled member 100. The light entering the light guide strip 300 is emitted to the collimating thick-walled block 200, then passes through the collimating thick-walled block 200 and enters the thick-walled member 100, and finally is emitted from the light emission surface of the thick-walled member 100.

[0105] The light guide strip 300 is provided with optical teeth 302 and light guide strip exit surface 301. After the light is reflected by the inclined surface of the optical teeth 302, it is emitted from the light guide strip exit surface 301 and enters the collimated thick-walled block 200.

[0106] The light source assembly includes a first LED light source 400 and a second LED light source 500. The first LED light source 400 is located at the focal position corresponding to the light collimation structure of the thick-walled member 100, and the second LED light source 500 is located at the light inlet position of the light guide strip 300.

[0107] The thick-walled component 100 is provided with an optical working surface, a light emitting surface, and multiple incident collimation structures. Multiple first LED light sources 400 are provided, and the incident collimation structures are arranged one-to-one with the first LED light sources 400. Light enters the thick-walled component 100 through the incident collimation structure, and after being reflected by the optical working surface, it is emitted from the light emitting surface.

[0108] The incident light collimating structure is provided with a first thick-walled optical pattern 101 and a second thick-walled optical pattern 102, and a third thick-walled optical pattern 103 is provided on the optical working surface; a fourth thick-walled optical pattern 104 is provided on the light emitting surface. The light entering the thick-walled component 100 is refracted by the first thick-walled optical pattern 101 and the second thick-walled optical pattern 102 and reaches the third thick-walled optical pattern 103. After being reflected by the third thick-walled optical pattern 103, it reaches the fourth thick-walled optical pattern 104 and is refracted by the fourth thick-walled optical pattern 104 before being emitted. The light entering the thick-walled component 100 after being emitted from the collimating thick-walled block 200 is refracted by the third thick-walled optical pattern 103 and reaches the fourth thick-walled optical pattern 104. After being diffused and emitted by the fourth thick-walled optical pattern 104, it is emitted.

[0109] The third thick-walled component optical pattern 103 includes a first series of optical patterns 1031 and a second series of optical patterns 1032. The second series of optical patterns 1032 is used to realize the first vehicle light function, and the first series of optical patterns 1031 is used to realize the second vehicle light function. The first series of optical patterns 1031 includes multiple first refractive collimating surfaces 10311 and multiple second refractive collimating surfaces 10312. The multiple second refractive collimating surfaces 10312 are connected by a stepped connecting surface 1033. The first refractive collimating surface 10311 is disposed on one side of the second refractive collimating surface 10312. Both the first refractive collimating surface 10311 and the second refractive collimating surface 10312 are used to realize the second vehicle light function. The light refracted and collimated by the light guide strip 300 is emitted to the collimated thick-walled block 200 and then refracted to the thick-walled component 100. The second series of optical patterns 1032 includes multiple reflective surfaces 10321. The reflective surfaces 10321 are connected to the first refractive collimating surface 10311. The first refractive collimating surface 10311 is disposed between adjacent reflective surfaces 10321. At least one second refractive collimating surface 10312 is disposed between two adjacent reflective surfaces 10321. The reflective surfaces 10321 are used to realize the function of the first vehicle lamp, reflecting the light emitted from the light source assembly in the thick-walled member 100 and collimated by the incident light collimating structure.

[0110] The first vehicle light function is any one of the following: daytime running light, turn signal, position light, brake light, or reversing light. The second vehicle light function is any one of the following: daytime running light, turn signal, position light, brake light, or reversing light. When different first vehicle light functions are implemented, the proportion of the second series optical patterns 1032 in the total patterns varies. When different second vehicle light functions are implemented, the proportion of the first series optical patterns 1031 in the total patterns varies. If the first vehicle light function is a turn signal function and the second vehicle light function is a daytime running light function, in the third thick-walled component optical patterns 103, the number of patterns used to implement the first vehicle light function accounts for 25% of the total number of patterns, and the number of patterns used to implement the second vehicle light function accounts for 75% of the total number of patterns.

[0111] Multiple light guide strips 300 and multiple second LED light sources 500 are configured. The multiple light guide strips 300 and multiple second LED light sources 500 are configured in a one-to-one correspondence. Multiple first LED light sources 400 are lit up simultaneously or dynamically, and multiple second LED light sources 500 are lit up simultaneously or dynamically.

[0112] The first headlight function is a turn signal function, and the second headlight function is a daytime running light function. When the first headlight function is implemented, the third thick-walled optical pattern 103 is used to reflect light. When the second headlight function is implemented, the third thick-walled optical pattern 103 is used to refract light.

[0113] The collimating thick-walled block 200 includes a light-incident rear side and a light-out front side. The light-out front side includes a first thick-walled block optical pattern 201 and a first step connecting surface 203. The light-incident rear side includes a second thick-walled block optical pattern 202. Light enters the collimating thick-walled block 200 from the light-incident rear side and exits through the light-out front side. The first thick-walled block optical pattern 201 and the second thick-walled block optical pattern 202 are used to collimate the light. The light output from the light guide strip 300 is refracted by the second thick-walled block optical pattern 202 and then transmitted to the first thick-walled block optical pattern 201. After being refracted by the first thick-walled block optical pattern 201, the light is transmitted into the thick-walled component 100.

[0114] The first thick-walled block optical pattern 201 includes a third thick-walled block optical pattern 2011 and a first connecting pattern surface 2012. The third thick-walled block optical pattern 2011 is used to realize the light emission function, and the first connecting pattern surface 2012 connects at least one third thick-walled block optical pattern 2011. The second thick-walled block optical pattern 202 includes a fourth thick-walled block optical pattern 2021 and a second connecting pattern surface 2022. The fourth thick-walled block optical pattern 2021 is used to realize the light incident function and the light refraction function, and the second connecting pattern surface 2022 connects at least one fourth thick-walled block optical pattern 2021.

[0115] The range of values ​​for the multiple angles of the first thick-walled block optical pattern 201 and the second thick-walled block optical pattern 202 is 0° to 90°. The range of values ​​for the angle between the third thick-walled block optical pattern 2011 and the first connecting pattern surface 2012 is 0° to 90°. The range of values ​​for the angle between the fourth thick-walled block optical pattern 2021 and the second connecting pattern surface 2022 is 0° to 90°.

[0116] Multiple light guide strips 300 are arranged corresponding to the light-incident rear side of the collimating thick-walled block 200. The height of the overall structure formed by the multiple light guide strips 300 is greater than or equal to the height of the light-incident rear side of the collimating thick-walled block 200. The light-emitting surface of the multiple light guide strips 300 at least covers the light-incident rear side of the collimating thick-walled block 200.

[0117] In the first series of optical patterns 1031, the optical function mainly refers to the first refractive collimating surface 10311 and the first refractive collimating surface 10312 during the DRL (daytime running light) function, while the stepped connecting surface 1033 only serves a connecting function and has no optical function. In the second series of optical patterns 1032, the optical function mainly refers to the reflective surface 10321 during the TI (steerable turn signal) function.

[0118] The purpose of this embodiment is to design an optical system with a multi-layer (especially suitable for three-layer) light guide medium combination (thick-walled component in front, collimating thick-walled block in the middle, and arrayed light guide strips in the back) to solve the defects existing in the prior art.

[0119] The optical system provided in this embodiment, consisting of a multilayer light guide medium, comprises three layers of light guide medium and LED light sources. These include a thick-walled component 100 arranged in front to achieve animation lighting from the inside out, a collimating thick-walled block 200 centrally located to collimate light, and an array of light guide strips 300 arranged vertically to achieve animation lighting. The thick-walled component 100 includes a first thick-walled component optical pattern 101, a second thick-walled component optical pattern 102, a third thick-walled component optical pattern 103, a fourth thick-walled component optical pattern 104, and a first LED light source 400 at the focal position corresponding to each collimating structure. The collimating thick-walled block 200 includes a first thick-walled block optical pattern 201 and a second thick-walled block optical pattern 202. The vertically arrayed light guide strips 300 include optical teeth 302 and a light-emitting surface 301, with a second LED light source 500 uniformly arranged at the light inlet and a third LED light source 600 at the light outlet. The first thick-walled optical pattern 101 and the second thick-walled optical pattern 102 are mainly used to disperse and collimate the light in the central area of ​​the first LED light source 400; the fourth thick-walled optical pattern 104 and the third thick-walled optical pattern 103, which have diverse arrangements such as left-interval arrangement, right-interval arrangement, top-bottom interval arrangement, or different proportions of 0-100% or irregular scattered distribution, are mainly used to collimate and diffuse the light again; the first thick-walled optical pattern 201 and the second thick-walled optical pattern 202 are arranged in multiple angles from 0° to 90°, mainly used to collimate the light output from the light guide strip 300, and work with the fourth thick-walled optical pattern 104 to diffuse and emit the light, thereby ensuring better optical performance of the entire optical system.

[0120] This embodiment employs a multi-layered, mutually cooperating light-guiding medium optical system. A thick-walled component is placed at the front, with a thick-walled block in the middle for light collimation, followed by independently arranged vertically arrayed light guide strips. The purpose is to achieve multiple lighting effects within the same area, including both inside-out and vertically sweeping animations, ensuring both high light efficiency and improved uniformity of the vehicle's turn signals. This embodiment is designed for dynamic turn signals, known as wiping in the automotive lighting field. Regulations require the light to be emitted from the inside out, but if the primary function of the headlight is another, it can also be emitted from the outside in, such as dynamic daytime running lights or welcome lights.

[0121] In this embodiment, the thick-walled component is on the front and the light guide is on the rear. The front thick-walled component enables steering or dynamic steering functions, while the rear light guide enables DRL (Daytime Running Light) or dynamic DRL functions. In addition to the front thick-walled component 100 and the rear light guide strip 300, the collimating thick-walled block 200 located in the middle helps to collimate and refract the light emitted from the light guide 300 to the thick-walled component 100 before it is emitted again. This ensures that the DRL function (daytime running light function) maintains luminous efficacy while improving uniformity, meeting regulatory and customer requirements. The second thick-walled optical pattern 202 of the collimating thick-walled block 200 is set with high density to improve luminous efficacy and uniformity.

[0122] The third thick-walled component's optical pattern 103 is divided into a first series of optical patterns 1031 and a second series of optical patterns 1032. The second series of optical patterns 1032 performs the turn signal function, while the first series of optical patterns 1031 performs the DRL function. In the first series of optical patterns 1031, the first refractive collimating surface 10311 and the first refractive collimating surface 10312 have optical functions, while the stepped connecting surface 1033 has no optical function. In the second series of optical patterns 1032, the reflecting surface 10321 has an optical function.

[0123] When designing the optical patterns 1031 and 1032 of the first series on the third thick-walled component, the ratio and placement of the patterns can be changed and optimized according to specific project requirements. The optimal solution is that the number of patterns serving the second vehicle light function (daytime running light function) accounts for 75% of the total number of patterns, and the number of patterns serving the first vehicle light function (turn signal function) accounts for 25% of the total number of patterns. This can meet the regulatory requirements of various functional lights and achieve high utilization efficiency and illumination uniformity. Alternatively, the number of a certain pattern can be selected purposefully, that is, the proportion of a single pattern to the total number of patterns. This proportion can be (0-100%), and the sum of the two patterns is 100%. The arrangement of the two optical patterns has its diversity.

[0124] The system in this embodiment can not only be statically lit, but also dynamically lit. The two functions of static lighting can reuse the same light-emitting area, and the two functions can also be dynamically lit by reusing the same light-emitting area. This can be dynamic in the left-right direction or dynamic in the up-down direction.

[0125] Example 2:

[0126] Those skilled in the art can understand this embodiment as a more specific description of Embodiment 1.

[0127] like Figures 1-30As shown, this embodiment provides an optical system that can achieve dynamic lighting from the inside out and from the top and bottom, and improve uniformity of a multi-layer light guide medium combination. The system includes a light guide medium and an LED light source, namely a thick-walled component 100 arranged in front to achieve animated lighting from the inside out, a collimating thick-walled block 200 distributed in the middle to collimate the light, and a light guide strip 300 that can achieve animated lighting from the top and bottom. That is, with the light output direction defined as the positive direction, the thick-walled component 100 is located at the front, the light guide strip 300 is located at the rear, and the thick-walled block 200 is located between the thick-walled component 100 and the light guide strip 300.

[0128] The thick-walled component 100 includes: an incident light collimating portion, an optical working surface, and a light emitting surface. The entire system also includes an LED light source. The incident light collimating portion of the thick-walled component 100 includes a first thick-walled component optical pattern 101 and a second thick-walled component optical pattern 102. The optical working surface has a third thick-walled component optical pattern 103, the light emitting surface has a fourth thick-walled component optical pattern 104, and a first LED light source 400 at the focal position corresponding to each collimating portion structure.

[0129] The collimating thick-walled block 200 includes: a rear side surface for realizing light incident ( Figure 7 The M-side and the front side for emitting light (in the middle) Figure 7 The front side includes a first thick-walled block optical pattern 201 and a first step connecting surface 203, and the rear side includes a second thick-walled block optical pattern 202. The first thick-walled block optical pattern 201 includes a third thick-walled block optical pattern 2011 that realizes the light emission function and a first connecting pattern surface 2012 of the third thick-walled block optical pattern 2011 that realizes the connection of at least one of them. The second thick-walled block optical pattern 201 includes a fourth thick-walled block optical pattern 2021 that realizes the light incident function and the light refraction function and a second connecting pattern surface 2022 of the fourth thick-walled block optical pattern 2021 that realizes the connection of at least one of them.

[0130] The vertically arrayed light guide strips 300 include: optical teeth 302 disposed on the rear side of the light guide strip body, a light-emitting surface 301 disposed on the light guide strip body, and second LED light sources 500 uniformly arranged at light inlets on one side of the light guide strip 300. Furthermore, in addition to the second LED light source 500 disposed at the light inlet on one side of the light guide strip 300, a third LED light source 600 may also be disposed at the other side of the light guide strip 300.

[0131] Multiple light guide strips 300 are arranged corresponding to the light-incident rear side of the collimating thick-walled block 200. The overall height of the multiple light guides is set to be no less than the height of the light-incident rear side of the collimating thick-walled block 200. Preferably, the overall height of the multiple light guides is set to be greater than the height of the light-incident rear side of the collimating thick-walled block 200, that is, the light-emitting surface of the multiple light guides at least covers the light-incident rear side of the collimating thick-walled block 200, so that as much light emitted from the multiple light guides as possible is incident on the collimating thick-walled block 200.

[0132] The optical patterns 101 and 102 of the first thick-walled component are mainly used to disperse and collimate the light emitted from the central region of the first LED light source 400. Typically, no further patterns are needed at the collimation structure of the thick-walled component to achieve the collimation effect. Figure 3 As shown, since the thick-walled component is located on the front side to realize the turn signal function, in order to improve uniformity, a pattern is provided at the collimation structure of the thick-walled component. This pattern has the property and function of scattering light, so that the light output surface range after being collimated by the optical patterns 101 and 102 of the first thick-walled component is larger, the uniformity is significantly improved, and the uniformity requirements of various functions are met.

[0133] The fourth thick-walled optical pattern 104 and the third thick-walled optical pattern 103, which have diverse arrangements such as left-interval, right-interval, top-bottom interval, or different proportions of 0-100% or irregular scattered distribution, are mainly used for re-collimating and diffusing light. The fourth thick-walled optical pattern 104 is the light-emitting surface of the thick-walled component 100, realizing the diffusion and emission of light hitting it, and achieving the corresponding optical lighting effect. The third thick-walled optical pattern 103 is the optical working surface. The first function of the thick-walled component system is mainly the optical reflection surface. The second function of the thick-walled component system is mainly the optical refraction surface.

[0134] The optical patterns 201 and 202 of the first thick-walled block are arranged in multiple patterns at angles of 0° to 90°, mainly used for collimating the light output from the light guide strip 300. Figure 8 The light path shown shows that the light output from the light guide strip 300 is refracted by the second thick-walled block optical pattern 202 and then transmitted to the first thick-walled block optical pattern 201. It will be refracted again, and most of the light will be transmitted in the same direction. Finally, it is transmitted to the thick-walled component 100. This process realizes multiple collimations of the light and improves the uniformity of illumination.

[0135] This embodiment employs a combination of specially arranged light-guiding media with a front thick-walled component, a middle thick-walled block, a rear light guide, and special optical patterns to ensure better optical performance of the entire optical system, achieving multiple animation lighting effects in the same area with high efficiency and uniformity.

[0136] The multi-angle values ​​of the first thick-walled block optical pattern 201 and the second thick-walled block optical pattern 202 each range from 0° to 90°, and more specifically, 90° is optimal. Figure 10 As shown. The included angle between the first connecting patterned surfaces 2012 of the optical pattern 2011 of the third thick-walled block ranges from 0° to 90°, with 90° being the optimal value. Figure 8 As shown. The included angle between the second connecting pattern surface 2022 of the thick-walled block optical pattern 2021 is in the range of 0° to 90°, wherein the first thick-walled block optical pattern 201 and the second thick-walled block optical pattern 202 are multi-angled and the range is 0° to 90°, with the optimal value being 90°.

[0137] Furthermore, the respective settings of the optical patterns 201 and 202 of the first thick-walled block can be designed according to actual engineering requirements and appearance, and this implementation does not impose any restrictions on this.

[0138] like Figure 10 and Figure 11 As shown in the figure, the corresponding one is Figure 9 The magnified view of part F shows from different perspectives that the optical pattern 201 of the first thick-walled block is arranged horizontally, while the optical pattern 202 of the second thick-walled block is arranged vertically.

[0139] The light emitted from the second LED light source 500 at the light inlet end of the light guide strip 300 located at the rear is reflected by the inclined surface of the optical teeth 302 of the light guide strip, and the light is emitted from the light outlet surface 301 of the light guide strip. The array light guide strip 300 includes at least one light guide strip, and in a preferred embodiment, at least two light guide strips are provided. When designing the light guide strips 300, they are distributed in an upper and lower array. According to the mold processing requirements, the diameter of the light guide strip is generally in the range of 5mm to 12mm. Therefore, the number of light guide strips can be designed according to the width of the molding surface and the space size. In this embodiment, there are 6 light guide strips 300, and the diameter of the light guide strips 300 is 5mm. They are distributed in an array from top to bottom. The light guide strips 300 are lit up one by one, that is, the LEDs at the light inlet ends of the upper and lower array light guide strips are lit up from top to bottom, so that at least two of the upper and lower array light guide strips are dynamically lit from top to bottom.

[0140] In addition to the vertical array distribution mentioned above, the light guide strip 300 can also be arranged in a horizontal direction, an oblique direction, or with the light-incident ends not on the same plane but arranged in a stepped pattern, or distributed according to the shape requirements to achieve the corresponding dynamic lighting effect.

[0141] The lighting sequence and method of multiple light guide strips 300 can be flexible, diverse and personalized. The light guide strips can be lit one by one in sequence, or in sequence two by two, three by three, etc., or some light guide strips can be lit randomly to achieve certain specific dynamic lighting effects.

[0142] A third LED light source 600 is added at the corresponding position on the other end of the light guide strip. The third LED light source 600 and the second LED light source 500 are the same type of light source. The light emitted from the third LED light source 600 enters the light guide strip 300 from the other end of the light guide strip 300, which makes up for the defect that the light guide strip 300 is too long and therefore the light transmitted to the end, i.e. the other end, is insufficient.

[0143] The second LED light source 500 and the third LED light source 600 can be white light sources to achieve functions such as headlight position lights, headlight daytime running lights, and reversing lights; they can be red light sources to achieve functions such as taillight brake lights and taillight position lights; they can be amber light sources to achieve turn signal functions; or they can be any other color to achieve welcome light functions. In this embodiment, the second LED light source 500 and the third LED light source 600 are white, achieving the function of headlight daytime running lights, and have a dynamic lighting effect.

[0144] When the second LED light source 500 and the third LED light source 600 are both white light sources, the problem of the light guide strip tip turning yellow when lit during injection molding is also solved, resulting in a higher light efficiency and better light color.

[0145] The second LED light source 500 and the third LED light source 600 can be set as single-chip monochromatic light sources or dual-chip dual-color light sources to achieve multiple functions in the same optical system. Thus, multiple functions can be multiplexed in the same system by using only the light guide strips 300 arranged in an upper and lower array. When the number of light guide strips is at least two, multiple functions can also be multiplexed to achieve dynamic lighting effects in the same system.

[0146] like Figure 13 As shown, the patterned surface of the thick-walled block 200 in the middle includes a first thick-walled block optical pattern 201 and a second thick-walled block optical pattern 202. The first thick-walled block optical pattern 201 is mainly a horizontal pattern, and the second thick-walled block optical pattern 202 is mainly a vertical pattern.

[0147] like Figure 13 , Figure 14 , Figure 15As shown, taking the bottom surface 204 of the collimated thick-walled block 200 as the reference surface, the surface containing the second thick-walled block optical pattern 202 is set at a right angle to the bottom surface 204. A pattern is then created on the surface containing the second thick-walled block optical pattern 202, including multiple second connecting pattern surfaces 2022 of the thick-walled block optical patterns 2021 of the fourth thick-walled block optical patterns. The surface containing each of the first thick-walled block optical patterns 201 is set at an angle to the bottom surface 204; in a preferred embodiment, this angle is 45°. A pattern is then created on the surface containing each of the multiple first thick-walled block optical patterns 201, including multiple first connecting pattern surfaces 2012 of the third thick-walled block optical patterns 2011. The size of the first step connecting surface 203, or the distance between any two adjacent first thick-walled block optical patterns 201, is determined by the design trend and can be flexibly set according to design requirements.

[0148] Furthermore, when observing the light-emitting surface and light-emitting effect of the optical system at a large angle, defects such as uniformity and stray light are often caused by the first step connecting surface 203 on the side. In this embodiment, the first step connecting surface 203 on the front side can be set very small, which greatly avoids uncontrollable stray light and uniformity defects, and improves the optical lighting effect.

[0149] Light rays emitted from the light-emitting surface 301 of the light guide strip are received by the light-incident surface of the collimating thick-walled block 200 and propagated in the collimating thick-walled block 200. However, due to the refraction of the light-incident surface of the collimating thick-walled block 200, the propagation direction of these light rays becomes complicated and dispersed. In order to ensure that most of the light rays propagating in the collimating thick-walled block 200 are propagated along the direction of travel and to improve the uniformity of illumination, a second thick-walled block optical pattern 201 with a stepped arrangement and mutual perpendicularity is designed on the light-incident surface of the thick-walled block 200 to adjust the propagation direction of the light incident into the collimating thick-walled block 200.

[0150] Meanwhile, to ensure that the propagation direction of the collimated light rays transmitted in the collimating thick-walled block 200 is not altered by refraction at the light-emitting surface of the collimating thick-walled block 200, a corresponding stepped and vertically distributed first thick-walled block optical pattern 201 is designed on the light-emitting surface of the collimating thick-walled block 200, such as... Figure 8 As shown in the optical path diagram, the light entering the collimating thick-walled block 200 is refracted by the optical pattern 2012 of the second thick-walled block, and then propagated in the collimating thick-walled block 200. After being refracted by the optical pattern 201 of the first thick-walled block, it is emitted from the thick-walled block. Most of these light rays are collimated, and their direction is mostly along the direction of travel, which reduces the dispersion of light rays and thus greatly improves the uniformity.

[0151] The angle between the optical pattern 201 surface of the first thick-walled block and the optical pattern 202 surface of the second thick-walled block can be distributed from 0 to 90°, or arranged in other ways such as square corn kernel pattern, arc strip pattern, etc. However, after multiple qualitative analyses, this embodiment adopts an optical pattern with mutually perpendicular patterns and a stepped uniform distribution, which has the best lighting effect.

[0152] The second thick-walled block optical pattern 202 is set with a high density in order to fully receive the light from the light guide, avoid light efficiency loss and improve uniformity. The first thick-walled block optical pattern 201 is set with a high density in order to fully output the light and transmit it to the thick-walled component 100, avoid light efficiency loss and improve uniformity.

[0153] The thick-walled component 100 located at the front includes a first LED light source 400 at the focal position corresponding to each collimation structure, and a first thick-walled component optical pattern 101 and a second thick-walled component optical pattern 102 that collimate and diverge the light emitted from the first LED light source 400. It also includes a third thick-walled component optical pattern 103 that receives the light emitted and diverged from the first thick-walled component optical pattern 201 (received at section 103b) and a third thick-walled component optical pattern 103 that receives the light emitted from the light source 400, which is collimated by the first thick-walled component optical pattern 101 and the first thick-walled component optical pattern 102, and then reflects the light to the light-emitting surface of the thick-walled component 100 (received at section 103a). It also includes a fourth thick-walled component optical pattern 104 on the light-emitting surface of the thick-walled component 100.

[0154] The material used for the thick-walled part 100 is transparent. In a preferred embodiment, an ice-blue transparent material is used, which can provide a better visual illumination effect. In particular, for large and thick-walled parts, yellowing is a common problem during injection molding, resulting in an unsatisfactory illumination effect. Ice-blue material can effectively improve this and make the illumination effect high and the color good.

[0155] In this embodiment, the focal position corresponding to the collimation structure is a monochromatic LED 400, which ensures the high-efficiency utilization of the LED and avoids the impact on the lighting effect due to the LED being out of focus. Of course, another preferred option is to use light sources of different colors to achieve different functions in the same area. Although the efficiency is lower, it can achieve the reuse function of the thick-walled component 100.

[0156] The optical pattern 101 and the optical pattern 102 of the first thick-walled component diffuse the light emitted from the first LED light source 400. By adjusting the diffusion angle of the optical pattern, the direction of diffusion can be controlled, allowing the light to diffuse to the left and right or up and down in a directional manner. This allows the light to be transmitted more effectively to the collimating surface of the thick-walled component 100, resulting in a fuller lighting effect.

[0157] This embodiment features a unique design for the third thick-walled optical pattern 103. The light received by the third thick-walled optical pattern 103 comprises two parts: one part is collimated light emitted from the first LED light source 400, diffused by the first thick-walled optical pattern 101 and the second thick-walled optical pattern 102; the other part is light refracted and collimated by the second thick-walled optical pattern 202, and then refracted again by the first thick-walled optical pattern 201. After receiving this portion of light, the third thick-walled optical pattern 103, together with the refraction of the first thick-walled optical pattern 201, re-collimates the light and transmits it to the light-emitting surface of the thick-walled component 100.

[0158] Because the thick-walled component 100 and its first LED light source 400 system only serve the first vehicle light function, while the thick-walled component 100, collimating thick-walled block 200, and light guide strip 300 combine to form another optical system serving the second vehicle light function. The light emitted from the LED light source 400 only passes through one layer of attenuation in the thick-walled component 100, resulting in high utilization. Even with some loss, it can still meet the regulations for its own first vehicle light function. However, the light emitted from the second LED light source 500 and the third LED light source 600 must pass through two layers of media, the light guide strip 300 and the collimating thick-walled block 200, before it can be emitted from the optical pattern 201 of the first thick-walled block. Therefore, the light emitted from the optical pattern 201 of the first thick-walled block needs to be utilized efficiently so that it can still meet the regulations for the second vehicle light function after attenuation by the thick-walled component 100. Therefore, it is necessary to utilize these two parts of light purposefully to achieve higher efficiency.

[0159] In this embodiment, a special third thick-walled optical pattern 103, consisting of a combination of two optical patterns, is formed on the collimation surface of the thick-walled component 100, such as... Figure 16 The image shown is a partially enlarged view of the optical pattern 103 of the third thick-walled component. The second series of optical patterns 1032 mainly serves the function of the first vehicle light, while the first series of optical patterns 1031 mainly serves the function of the second vehicle light. Figure 20 When creating a sectional view, two cross-sections, 103a and 103b, will appear. The sum of these two cross-sections equals the optical pattern 103 of the third thick-walled component. Figure 21 The section shown is section 103a, which is the sectional view section that includes the reflective surface 10321.

[0160] like Figure 21As shown, when the first LED light source 400 in the thick-walled component 100 is lit, the light rays, dispersed and collimated by the optical patterns 101 and 102 of the first and second thick-walled components, are transmitted to the optical pattern 103 of the third thick-walled component. The main component is the reflecting surface 10321 of the second series of optical patterns 1032. Most of the transmitted light rays are reflected by the reflecting surface 10321, causing them to propagate along the vehicle's direction. A small portion of the light rays is refracted by the second refractive collimating surface 10312 and the first refractive collimating surface 10311; this portion of the light is lost, and its trajectory is... Figure 21 The dashed line indicates that this loss is actually quite significant, but through the following system design methods and structural settings, the final design can meet regulatory requirements without any impact on the design. This can be achieved through the following methods:

[0161] A first thick-walled optical pattern 101 and a second thick-walled optical pattern 102 are set at the light incident position of the light source (i.e., the first LED light source 400 for the turn signal function). In terms of system hierarchy, the design scheme of this embodiment is to reuse the concept of optical system. On the basis of reuse, both functions still achieve dynamic effects. The turn signal function is set at the front, that is, the light emitted by the first LED light source 400 is reflected by the third thick-walled optical pattern 103 and emitted to the fourth thick-walled optical pattern 104 to achieve the turn signal function. This means that the turn signal function only has the attenuation of this one layer of thick-walled component. The DRL (daytime running light) function set at the rear needs to be attenuated by three layers: the third thick-walled optical pattern 103, the second thick-walled optical pattern 102 and the first thick-walled optical pattern 101. Moreover, the luminous efficiency requirement of DRL itself is higher. Therefore, the third thick-walled optical pattern 103 needs to provide more surface for the DRL system to penetrate and achieve optical function.

[0162] Therefore, the surface area that the system provides for the turn signal function, i.e. the reflective surface, will be less. However, through the collimation structure mentioned above and the setting of the thick-walled component 100 at the frontmost position of the system, it is possible to ensure that the front turn signal function meets the regulatory light efficiency requirements, and also to ensure that the rear DRL function can be utilized to the maximum extent and meet the regulatory requirements.

[0163] like Figure 22As shown, when light is emitted from the light source at the end of the array light guide strip 300 and refracted by the collimating thick-walled block 200, it is transmitted to the optical pattern 103 of the third thick-walled component. The first and second refracting collimating surfaces 10311 and 10312 in the first series of optical patterns 1031 play a major role. The light is refracted by the first and second refracting collimating surfaces 10311 and 10312, causing it to propagate along the driving direction. Furthermore, through qualitative analysis, on the same surface of the third thick-walled component's optical pattern 103, the number of patterns serving the second vehicle light function accounts for 75% of the total number of patterns, and the number of patterns serving the first vehicle light function accounts for 25% of the total number of patterns. This can satisfy the regulatory requirements for various functional lights, achieving high utilization efficiency and illumination uniformity. Figure 22 The diagram shows section 103b, which is the sectional view excluding the reflective surface 10321.

[0164] The arrangement of the two optical patterns mentioned above is diverse. For example, the same pattern can be evenly distributed with 1, 2, 3, 4, etc., spaced apart in each row or column, or the two patterns can be randomly distributed in each row or column, or the same pattern can be arranged in a row of 1, 2, 3, etc., or in a column of 1, 2, 3, etc. In addition, the number of a certain pattern can be selected purposefully as needed, that is, the proportion of a single pattern to the total number of patterns. This proportion can be 0 to 100%. For example, if the number of a certain pattern accounts for 30% of the total number of patterns, then the proportion of the other pattern to the total number of patterns will be 70%, thereby achieving the purpose of higher optical efficiency and uniformity.

[0165] When only the first LED light source 400 is lit, which functions as a turn signal, the light path is as follows: Figure 26 As shown, a portion of the light emitted from the first LED light source 400 is diffused and collimated by the concentrator and the first thick-walled optical pattern 101 on the concentrator before hitting the third thick-walled optical pattern 103. Another portion of the light is diffused and collimated by the concentrator and the second thick-walled optical pattern 102 on the concentrator before hitting the third thick-walled optical pattern 103. Some of the light rays hitting the third thick-walled optical pattern 103 are transmitted to the reflective surface 10321. These patterns are reflective patterns, and the transmitted light rays are reflected by these patterns and then transmitted forward in the thick-walled component 100. After being diffused by the fourth thick-walled optical pattern 104, they are output, realizing the first function of lighting up. In this embodiment, it is the turn signal function lighting up.

[0166] Another portion of the light will be transmitted to the first refractive collimating surface 10311 and the second refractive collimating surface 10312. These patterns are stepped refractive patterns. The light transmitted to these patterned surfaces will be refracted onto the collimating thick-walled block 200, and then refracted in the collimating thick-walled block 200 after being refracted by the optical pattern 202 of the second thick-walled block.

[0167] When only the second LED light source 500 is lit, which functions as a daytime running light, the light path is as follows: Figure 27 As shown, the light emitted from the second LED light source 500 is transmitted through the light guide strip 300 to the second thick-walled block optical pattern 202 in the collimating thick-walled block 200. Under the refraction of these patterns, the light is transmitted to the third thick-walled component optical pattern 103 on the thick-walled component 100. Some of the light is refracted onto the first refractive collimating surface 10311 (which is a stepped refractive pattern) and the second refractive collimating surface 10312 (which is a stepped refractive pattern). After being refracted by the first refractive collimating surface 10311 and the second refractive collimating surface 10312, the light is transmitted forward in the thick-walled component 100 and then output after being diverged by the fourth thick-walled component optical pattern 104, thus realizing the second function of lighting. In this embodiment, it is the daytime running light function.

[0168] Another portion of the light is refracted onto the reflective surface 10321 (which has a reflective pattern). This light is reflected by the reflective surface 10321 onto the second thick-walled block optical pattern 202 (which has a stepped pattern) in the collimating thick-walled block 200, and then refracted by the second thick-walled block optical pattern 202 and transmitted in the collimating thick-walled block 200.

[0169] In this embodiment, the first and second vehicle light functions, in addition to illuminating the lights, can also dynamically illuminate themselves. For example... Figure 1 As shown, multiple first LED light sources 400 are respectively set at the focal point of their respective collimation structures. When the first vehicle light function is dynamically illuminated, multiple first LED light sources 400 are illuminated sequentially from left to right or from right to left. The light path emitted by the first LED light source 400 of the first vehicle light function is as described above. When they are illuminated sequentially, multiple segments of the thick-walled member 100 are illuminated sequentially from left to right or from right to left, ultimately presenting the dynamic illumination of the first vehicle light function. In this embodiment, the turn signal is dynamically illuminated.

[0170] like Figure 2 As shown, multiple second LED light sources 500 are respectively located at the focal point of the end of their respective light guide strips 300. When the second vehicle light function is dynamically lit, multiple second LED light sources 500 are lit sequentially from top to bottom or from bottom to top. The light path emitted by the second LED light sources 500 of the second vehicle light function is as described above. When lit sequentially, multiple light guide strips 300 are lit sequentially from bottom to top or from top to bottom, ultimately presenting the dynamic lighting of the second vehicle light function. This embodiment is the dynamic lighting of daytime running lights.

[0171] Therefore, the design of this embodiment can achieve the independent lighting of the first and second vehicle light functions, and the functions can reuse the same light-emitting area. It can also achieve the dynamic lighting of the first and second vehicle light functions, and the dynamic lighting function can also reuse the same light-emitting area.

[0172] In this embodiment, the dynamic lighting of the daytime running lights (DRLs) for the second vehicle light function can be achieved by sequentially lighting the first LED light source 500 from top to bottom or bottom to top. Alternatively, the second LED light source 500 can be sequentially lit from top to bottom to illuminate the light guide strip 300 from top to bottom, showcasing the dynamic lighting of the DRLs from top to bottom. After illuminating the bottommost light guide, the second LED light source 500 is then directly connected to the bottom to illuminate the light guide strip 300 again from bottom to top, showcasing the dynamic lighting of the DRLs from bottom to top. This process can be repeated continuously. The overall lighting effect is that the DRLs light up from top to bottom, then directly from bottom to top, then back to top to bottom, in a continuous cycle.

[0173] Other ways to light it up, such as Figure 30 As shown, daytime running lights, i.e., the dynamic form of light guide illumination, can be any other illumination method besides the static and sequential dynamic methods mentioned above, such as:

[0174] The order can be a→b→c→d→e→f or vice versa. By controlling the current or circuit of the LEDs on the PCB board, the LEDs can be controlled to light up in a skipping manner. Alternatively, the order can be a→d→e→b→a→f→c→f. Any lighting method and skipping sequence is possible.

[0175] It can be lit one by one, or multiple lights, such as two lights, three lights, or even four lights. It can also be lit two lights first, then three lights, then four lights, or even two lights again. It can be arranged in order, such as a&b lighting up simultaneously → c&d lighting up simultaneously → e&f lighting up simultaneously at the end. It can also be lit up in a skip order, such as a&b lighting up simultaneously → e&f lighting up simultaneously → c&d lighting up simultaneously at the end.

[0176] This invention employs an optical system with multiple layers of mutually cooperating light-guiding media. The system's reusable light-emitting surface can achieve both inside-out animation lighting and top-down sweeping animation lighting in the same area, reusing multiple animation lighting effects. Furthermore, it can improve the lighting uniformity of automotive signal lights while ensuring light efficiency.

[0177] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0178] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. An optical system comprising a multilayer light-guiding medium, characterized in that, include: Light source assembly, light guide strip (300), collimation thick-walled block (200), and thick-walled component (100); The light guide strip (300), the collimating thick-walled block (200), and the thick-walled component (100) are arranged sequentially along the light emission direction, with the collimating thick-walled block (200) disposed between the thick-walled component (100) and the light guide strip (300); the light source assembly is disposed at the light inlet position of the thick-walled component (100) and the light inlet position of the light guide strip (300); The light entering the thick-walled member (100) exits from the light-emitting surface of the thick-walled member (100); The light entering the light guide (300) is emitted to the collimating thick-walled block (200), then passes through the collimating thick-walled block (200) and enters the thick-walled member (100), and finally exits from the light-emitting surface of the thick-walled member (100); The thick-walled component (100) is provided with an optical working surface, a light emitting surface and multiple incident light collimation structures; The incident light collimation structure is provided with a first thick-walled optical pattern (101) and a second thick-walled optical pattern (102). The optical working surface is provided with a third thick-walled optical pattern (103); the light emitting surface is provided with a fourth thick-walled optical pattern (104). Light entering the thick-walled component (100) is refracted by the optical patterns (101) of the first thick-walled component and the optical patterns (102) of the second thick-walled component before reaching the optical pattern (103) of the third thick-walled component. After being reflected by the optical pattern (103) of the third thick-walled component, it reaches the optical pattern (104) of the fourth thick-walled component and is then refracted by the optical pattern (104) of the fourth thick-walled component before exiting. The light rays emitted from the collimated thick-walled block (200) and entering the thick-walled member (100) are refracted by the optical pattern (103) of the third thick-walled member to the optical pattern (104) of the fourth thick-walled member, and then emitted after being diffused and emitted by the optical pattern (104).

2. The optical system of the multilayer light guide medium combination according to claim 1, characterized in that, The light source assembly includes a first LED light source (400) and a second LED light source (500); The first LED light source (400) is located at the focal position corresponding to the incident collimation structure of the thick-walled member (100); The second LED light source (500) is located at the light inlet of the light guide strip (300).

3. The optical system of the multilayer light guide medium combination according to claim 2, characterized in that, Multiple first LED light sources (400) are provided, and the incident light collimation structure is provided in a one-to-one correspondence with the first LED light sources (400); Light enters the thick-walled member (100) through the incident collimation structure, and after being reflected by the optical working surface, it exits from the light-emitting surface; The optical guide strip (300) is configured in multiple ways; The second LED light source (500) is configured in multiple ways, and the multiple light guide strips (300) are configured in a one-to-one correspondence with the multiple second LED light sources (500); Multiple first LED light sources (400) are lit simultaneously or dynamically, and multiple second LED light sources (500) are lit simultaneously or dynamically.

4. The optical system of the multilayer light guide medium combination according to claim 1, characterized in that, The thick-walled component (100) is provided with an optical working surface, and the optical working surface is provided with a third thick-walled component optical pattern (103). The third thick-walled optical pattern (103) includes a first series of optical patterns (1031) and a second series of optical patterns (1032). The second series of optical patterns (1032) is used to realize the first vehicle light function, and the first series of optical patterns (1031) is used to realize the second vehicle light function.

5. The optical system of the multilayer light guide medium combination according to claim 4, characterized in that, The first series of optical patterns (1031) includes multiple first refractive collimating surfaces (10311) and multiple second refractive collimating surfaces (10312). The plurality of second refractive collimating surfaces (10312) are connected by a stepped connecting surface (1033); the first refractive collimating surface (10311) is disposed on one side of the second refractive collimating surface (10312); The first refractive collimating surface (10311) and the second refractive collimating surface (10312) are both used to realize the function of the second vehicle light; the light emitted through the light guide strip (300) to the collimating thick wall block (200) and then refracted to the thick wall component (100) is refracted and collimated.

6. The optical system of the multilayer light guide medium combination according to claim 5, characterized in that, The second series of optical patterns (1032) includes multiple reflective surfaces (10321); The reflecting surface (10321) is connected to the first refractive collimating surface (10311), and the first refractive collimating surface (10311) is disposed between adjacent reflecting surfaces (10321); At least one of the second refractive collimating surfaces (10312) is disposed between two adjacent reflecting surfaces (10321); The reflective surface (10321) is used to realize the function of the first vehicle light, reflecting the light emitted from the light source assembly in the thick-walled member (100) and collimated by the incident light collimating structure.

7. The optical system of the multilayer light guide medium combination according to claim 4, characterized in that, The first vehicle light function is any one of the following: turn signal, daytime running light, position light, reversing light, and brake light; The second vehicle light function is any one of the following: turn signal, daytime running light, position light, reversing light, brake light; When different first headlight functions are achieved, the proportion of the second series of optical patterns (1032) in the total pattern varies; When different second headlight functions are implemented, the proportion of the first series of optical patterns (1031) to the total pattern varies.

8. The optical system of the multilayer light guide medium combination according to claim 7, characterized in that, The first headlight function is a turn signal function, and the second headlight function is a daytime running light function; In the third thick-walled optical pattern (103), the number of patterns used to realize the first vehicle light function accounts for 25% of the total number of patterns, and the number of patterns used to realize the second vehicle light function accounts for 75% of the total number of patterns.

9. The optical system of the multilayer light guide medium combination according to claim 1, characterized in that, The collimating thick-walled block (200) includes a light-incident rear side and a light-out front side; The light-emitting front side includes a first thick-walled block optical pattern (201) and a first stepped connecting surface (203); the light-incident rear side includes a second thick-walled block optical pattern (202). Light enters the collimating thick-walled block (200) from the light-incident rear side and exits through the light-out front side; the optical pattern (201) of the first thick-walled block and the optical pattern (202) of the second thick-walled block are used to collimate the light. The light emitted from the light guide strip (300) is refracted by the second thick-walled block optical pattern (202) and then transmitted to the first thick-walled block optical pattern (201). After being refracted by the first thick-walled block optical pattern (201), the light is transmitted to the thick-walled component (100). The first thick-walled block optical pattern (201) includes a third thick-walled block optical pattern (2011) and a first connecting pattern surface (2012); The third thick-walled block optical pattern (2011) is used to achieve light emission, and the first connecting pattern surface (2012) is connected to at least one of the third thick-walled block optical patterns (2011). The second thick-walled block optical pattern (202) includes a fourth thick-walled block optical pattern (2021) and a second connecting pattern surface (2022); The fourth thick-walled block optical pattern (2021) is used to achieve the effects of incident light and refracted light, and the second connecting pattern surface (2022) connects at least one of the fourth thick-walled block optical patterns (2021). Multiple light guide strips (300) are disposed corresponding to the light-incident rear side surface of the collimating thick-walled block (200); the height of the overall structure formed by the multiple light guide strips (300) is greater than or equal to the height of the light-incident rear side surface of the collimating thick-walled block (200); the light-emitting surfaces of the multiple light guide strips (300) at least cover the light-incident rear side surface of the collimating thick-walled block (200).

Images