Light-emitting system and vehicle lamp

Abstract

The utility model discloses a light-emitting system and a vehicle lamp, and the light-emitting system comprises a display light source which is used for emitting projection light; the first dimming layer is arranged in front of the display light source and used for allowing projection light rays emitted by the display light source to penetrate through and dimming; the second dimming layer is arranged on the side, away from the display light source, of the first dimming layer and used for allowing the primary light rays modulated by the first dimming layer and the multi-stage reflection light rays reflected between the first dimming layer and the second dimming layer in a reciprocating mode to penetrate through; wherein an included angle beta is formed between the surface of the first dimming layer and the vertical plane, an included angle alpha is formed between the surface of the second dimming layer and the vertical plane, beta is larger than or equal to-20 degrees and smaller than 0, and alpha is larger than or equal to-30 degrees and smaller than 0; or 0 < beta < = 20 degrees, and 0 < alpha < = 30 degrees. Light management in front of the screen can be enhanced, real image recognition by human eyes is facilitated, and glare is reduced.

Description

Technical Field

[0001] The present application relates to the field of vehicle lighting technology, and in particular to a lighting system and a vehicle lamp. Background Art

[0002] As automotive lighting technology advances, the development of automotive lighting, a crucial component of both safety and aesthetics, has progressed through multiple stages. Traditional lighting systems are typically based on a single light source and reflective system, but with technological advancements, more complex and efficient lighting systems have emerged.

[0003] In recent years, the integration of screen technology (MDL) has opened up new possibilities for automotive lighting systems, particularly in light control and dynamic display. Conventional screen systems have only a single translucent layer, resulting in a simple design and a lack of depth. However, adding a double translucent layer inevitably creates virtual images due to physical principles. This complex and noticeable virtual image behind the real image can be easily seen by the naked eye, causing ghosting and glare, which can affect visual perception. Utility Model Content

[0004] In order to solve the above problems, the technical solutions adopted in the embodiments of the present application are as follows:

[0005] The present application discloses a lighting system, comprising:

[0006] A display light source, the display light source is used to emit projection light;

[0007] A first dimming layer is provided on the light-emitting side of the display light source, and is used for allowing the projection light emitted by the display light source to pass through and dimming the light;

[0008] a second dimming layer, provided on a side of the first dimming layer away from the display light source, for allowing the primary light modulated by the first dimming layer and the multi-level reflected light after reciprocating reflection between the first dimming layer and the second dimming layer to pass through;

[0009] There is an angle β between the surface of the first dimming layer and the vertical plane, and there is an angle α between the surface of the second dimming layer and the vertical plane, -20°≤β<0, -30°≤α<0; or, 0<β≤20°, 0<α≤30°.

[0010] By controlling the angles of the two dimming layers, the virtual image is moved toward the display screen away from the first dimming layer (toward the interior of the light-emitting system), thereby increasing the horizontal distance between the virtual image and the real image of the display light source, making the virtual image further away from the observer in front of the light-emitting system. The virtual image and the real image are significantly separated. The farther the virtual image is, the lower the brightness of the virtual image when it is seen by the human eye, so that the separation and contrast between the virtual image and the real image of the display light source are greater. Alternatively, the multi-level reflected light reflected back and forth is offset to a non-visible area to directly eliminate the second layer of virtual image. The amount of back and forth reflected light and the number of virtual images are reduced, thereby also achieving the effect of improving the separation and contrast, with excellent light control and dynamic visual effects.

[0011] The present application can enhance the light management in front of the screen. The virtual image is separated from the real image and the brightness of the virtual image is greatly reduced, so that the virtual image and the real image have a clear contrast, and the ghosting of the real image and the virtual image is significantly reduced, which is more conducive to the human eye to recognize the real image and the virtual image, thereby weakening the ghosting effect and reducing glare.

[0012] The first and second dimming layers are independent and adjustable. As the design of the lamp changes, the position and angle of the first dimming layer can be freely adjusted to achieve the desired light pattern. This allows the display screen of the lighting system of this application to no longer be constrained to adapt to fixed lamp design trends, making the MDL system of this application compatible with a wider range of automotive lighting applications.

[0013] As an optional implementation, in the embodiment of the present application, different parts of the surface of the first dimming layer have different angles β with the vertical plane; different parts of the surface of the second dimming layer have different angles α with the vertical plane.

[0014] As an optional implementation, in an embodiment of the present application, the angle β between the first dimming layer and the vertical plane is 20°, and the angle α between the second dimming layer and the vertical plane is 30°; or, the angle β between the first dimming layer and the vertical plane is -20°, and the angle α between the second dimming layer and the vertical plane is -30°.

[0015] As an optional implementation, in an embodiment of the present application, there are multiple display light sources, which are distributed on the display screen and together form a light-emitting surface; there is an angle γ between the display screen and the vertical plane, and the value range of γ is: -15°≤γ<0, and 0<γ≤15°.

[0016] As an optional implementation, in the embodiment of the present application, there are multiple display light sources, and the multiple display light sources are arranged in a matrix, and every two display light sources in different upper and lower rows are not in the same vertical plane.

[0017] As an optional implementation, in the embodiment of the present application, at least one of a surface of the first dimming layer facing the second dimming layer and a surface of the second dimming layer facing the first dimming layer is provided with an antireflection film.

[0018] As an optional implementation, in the embodiment of the present application, the transmittance of the first dimming layer is lower than the transmittance of the second dimming layer.

[0019] As an optional implementation, in the embodiment of the present application, the thickness of the antireflection film is 100nm-200nm.

[0020] As an optional implementation, in the embodiment of the present application, the thickness of the antireflection film is 150 nm.

[0021] The present application also discloses a vehicle lamp, on which the light emitting system described in any of the aforementioned embodiments is provided.

[0022] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the illumination of a screen system having a double-layer light-transmitting surface;

[0025] Figure 2 for Figure 1 Ray tracing diagram of the screen system when emitting light;

[0026] Figure 3 for Figure 1 Schematic diagram of real and virtual images when the screen system is illuminated;

[0027] Figure 4 A front view of a lighting system provided in one embodiment of the present application;

[0028] Figure 5 for Figure 4 AA section view;

[0029] Figure 6 for Figure 5 Schematic diagram of the light path when α = 15° and β = 20°;

[0030] Figure 7 for Figure 5 Schematic diagram of the light path when α = 30° and β = 20°;

[0031] Figure 8 A cross-sectional view of a light emitting system provided in another embodiment of the present application;

[0032] In the picture:

[0033] 1. Screen light source; 2. Inner light-transmitting surface; 3. Outer light-transmitting surface;

[0034] 100, display screen; 110, display light source; 110', first virtual image; 110", second virtual image;

[0035] 200, first dimming layer;

[0036] 300, second dimming layer;

[0037] 400. Vertical plane. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0040] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and should not be understood as indicating or implying relative importance.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0042] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, or electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0043] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0044] As mentioned above, the conventional screen system has only a single light-transmitting layer, and the design is relatively simple and lacks a sense of depth; but if a double light-transmitting surface is added, a virtual image will appear, such as Figure 1 In the scheme, the dotted line on the far right is the screen light source 1. Most of the light is refracted at point B on the outer light-transmitting surface 3 and then emitted. At the same time, part of the reflected light is reflected back to point C on the inner light-transmitting surface 2, and part of it is reflected again to the outer light-transmitting surface 3 in front to form a first-order virtual image. The second-order virtual image imaging principle is similar. The reflected light is further doubly reflected and emitted forward to form a second-order virtual image. The ray tracing situation is as follows: Figure 2 , the human eye can see from the outside of the outer light-transmitting surface 3 as Figure 3 It is shown that there will be complex and obvious virtual images near the real image, which can easily cause ghosting and glare, affecting visual perception.

[0045] refer to Figure 4-Figure 5 , the present application provides a light emitting system, comprising:

[0046] A display screen 100, wherein the display screen 100 includes a display light source 110, and the display light source 110 is used to emit projection light;

[0047] The first dimming layer 200 is provided in front of the display screen 100 and is used for allowing the projection light emitted by the display light source 110 to pass through and dimming the light;

[0048] The second dimming layer 300 is provided on a side of the first dimming layer 200 away from the display screen 100 and is used to allow the primary light modulated by the first dimming layer 200 and the multi-level reflected light after reciprocating reflection between the first dimming layer 200 and the second dimming layer 300 to pass through;

[0049] There is an angle β between the surface of the first dimming layer 200 and the vertical plane 400, and an angle α between the surface of the second dimming layer 300 and the vertical plane 400, wherein -20°≤β<0, -30°≤α<0; or, 0<β≤20°, 0<α≤30°.

[0050] In this embodiment, a first dimming layer 200 and a second dimming layer 300 are placed in front of the projection screen. The light pattern created by dimming by the first and second dimming layers 200 and 300 is three-dimensional and profound. This dual-layer dimming allows for greater flexibility in light modeling. The shape and curvature of the screen display area can be more easily matched to the surrounding environment than with a single translucent surface, resulting in a more profound effect.

[0051] like Figure 6 The display screen 100 is combined with two dimming layers. By controlling the screen angle and the angles of the two dimming layers, the first virtual image 110' and the second virtual image 110" are moved in the direction of the display screen 100 away from the first dimming layer 200 (toward the interior of the light emitting system). This increases the horizontal distance between the virtual image and the real image of the display light source 110, making the virtual image further away from the observer in front of the light emitting system. The virtual image and the real image are significantly separated. The farther the virtual image is, the lower the brightness of the virtual image when it is seen by the human eye. Therefore, the separation and contrast between the virtual image and the real image of the display light source 110 are greater. Alternatively, Figure 7 The reciprocatingly reflected multi-level reflected light is further offset to a non-visible area, thereby directly eliminating the second layer of virtual image 110". The amount of reciprocatingly reflected light and the number of virtual image layers are reduced, thereby also achieving the effect of improving separation and contrast, and having excellent light control and dynamic visual effects.

[0052] The present application can enhance the light management in front of the screen. The virtual image is separated from the real image and the brightness of the virtual image is greatly reduced or even eliminated, so that the virtual image and the real image have a clear contrast, and the ghosting of the real image and the virtual image is significantly reduced, which is more conducive to the human eye to recognize the real image and the virtual image, thereby weakening the ghosting effect and reducing glare.

[0053] It is worth noting that when the values ​​of the angles α and β are greater than 0, the surfaces of the first dimming layer 200 and the second dimming layer 300 face the front of the light emitting system ( Figure 5 The right side of the vertical plane 400 is inclined, and when the values ​​of the angles α and β are less than 0, the surfaces of the first dimming layer 200 and the second dimming layer 300 are toward the rear of the light emitting system ( Figure 5 In the present application, the values ​​of the angles α and β are both positive or both negative, that is, the first dimming layer 200 and the second dimming layer 300 are either tilted toward the front of the light-emitting system or toward the rear of the light-emitting system.

[0054] The first dimming layer 200 and the second dimming layer 300 of this application are independent of each other and their relative positions are adjustable. As the design of the lamp changes, the position and angle of the first dimming layer 200 can be freely adjusted to achieve the desired light pattern. As a result, the display screen of this lighting system is no longer restricted to adapting to fixed lamp designs, making this MDL system compatible with a wider range of automotive lighting applications.

[0055] In some embodiments, different portions of the surface of the first dimming layer 200 have different angles β with the vertical plane 400 ; different portions of the surface of the second dimming layer 300 have different angles α with the vertical plane 400 .

[0056] Specifically, different parts of the surface of the first dimming layer 200 have different angles β with the vertical plane 400; different parts of the surface of the second dimming layer 300 have different angles α with the vertical plane 400, that is, the first dimming layer 200 and the second dimming layer 300 can be arc-shaped, wavy-shaped or other curved forms, and the angle range does not exceed the preset range to achieve the expected effect of the present application, and the design of the curved dimming layer is flexible and changeable.

[0057] Of course, in some other embodiments, the first dimming layer 200 and the second dimming layer 300 may also be planar structures, which is not limited here.

[0058] refer to Figure 7 In some embodiments, the angle β between the first dimming layer 200 and the vertical plane 400 is 20°, and the angle α between the second dimming layer 300 and the vertical plane 400 is 30°; or, the angle β between the first dimming layer 200 and the vertical plane 400 is -20°, and the angle α between the second dimming layer 300 and the vertical plane 400 is -30°.

[0059] In actual applications, simulations and measurements show that when α = 30° and β = 20°, the virtual image and the real image are significantly separated. The farther the virtual image is, the lower the brightness of the virtual image seen by the human eye. As a result, the separation contrast between the virtual image and the display light source 110 is very large. At the same time, the multi-level reflected light rays reflected back and forth are greatly deflected, even to non-visible areas, thereby directly eliminating the second layer of virtual image 110. The number of back and forth reflected light rays and the number of virtual images are reduced, thereby increasing the separation contrast. The ghosting of the real and virtual images is weakened, and the ghosting brightness is reduced to only about 40% of the original value. Ultimately, the human eye can directly distinguish the real and virtual images, and the light control effect is obvious.

[0060] This embodiment determines the optimal angle configuration to ensure the best visual experience under the expected usage conditions. The separation between the virtual image and the real image is large in contrast, ghosting is fully reduced, glare is completely eliminated, and optimal light control and dynamic visual effects are provided.

[0061] refer to Figure 5 In some embodiments, there is an angle γ between the display screen 100 and the vertical plane 400, and the value range of γ is: -15°≤γ<0, and 0<γ≤15°.

[0062] Specifically, the display screen 100 serves as the main light-emitting system, and its surface forms a light-emitting surface extending in both the vertical and horizontal directions, and a plurality of display light sources are distributed on the light-emitting surface.

[0063] When the inclined light-emitting surface is combined with the two-layer dimming surface, by controlling the tilt of the light-emitting surface of the display screen 100 and the tilt angle γ is between -15° and 15°, after the tilt is placed, some display light sources are positioned closer to the front and closer to the human eye. As a result, the virtual image formed by the display light source 110 at a certain height H can be covered and blocked from the front by other display light sources 110 at higher or lower positions, which is equivalent to directly eliminating the virtual image, thereby achieving the purpose of significantly improving the contrast of the real image. The outline boundary of the real image is clear and obvious, the ghosting basically disappears, and the glare is eliminated.

[0064] At the same time, after testing, the tilt angle γ of the display screen 100 between -15° and 15° can achieve the best effect of the human eye looking at the screen straight, and the brightness of the upper and lower parts of the display screen is evenly distributed. However, when the tilt angle γ is greater than 15° or less than -15°, the tilt angle of the top or bottom end of the display screen 100 is too large, resulting in a distance too close to the human eye and high brightness, and a large difference in brightness with the middle of the display screen.

[0065] In some embodiments, there are multiple display light sources 110 , which are arranged in a matrix, and every two display light sources 110 in different upper and lower rows are not in the same vertical plane.

[0066] In this embodiment, the two display light sources 110 in different rows are not located in the same vertical plane, resulting in a three-dimensional luminous surface when emitting light. Furthermore, the different distances between the display light sources in the rows and the human eye allow the virtual image of one display light source 110 to be blocked from the front by the other display light source 110 in the row above or below it, effectively eliminating the virtual image. This principle significantly improves the contrast of the real image, resulting in a clear and distinct real image outline, virtually eliminating ghosting, and eliminating glare.

[0067] refer to Figure 8 In some embodiments, an anti-reflection film 500 is applied on at least one of a surface of the first dimming layer 200 facing the second dimming layer 300 and a surface of the second dimming layer 300 facing the first dimming layer 200 .

[0068] The aforementioned display screen 100 is combined with two dimming layers. For example, an anti-reflection film 500 is provided on the surface of the first dimming layer 200 facing the second dimming layer 300. When light emitted by the display light source 110 enters the first dimming layer 200, the anti-reflection film 500 allows more light to be emitted from the light-emitting surface of the first dimming layer 200, thereby allowing the human eye to perceive a brighter real image. Light that strikes the light-entering surface of the second dimming layer 300 is partially reflected back to the light-emitting surface of the first dimming layer 200. At this time, the anti-reflection film 500 allows more light to penetrate the first dimming layer 200 backwards to reach the display screen 100. Accordingly, the amount of light reflected forward by the first dimming layer 200 back to the second dimming layer 300 is reduced, thereby reducing the brightness of the first virtual image 110'. Based on a similar principle, the brightness of the second virtual image 110' and the multi-layer virtual image will also be significantly reduced.

[0069] The above design reduces the intensity and amount of light reflected by the first dimming layer 200 to the second dimming layer 300, thereby achieving the purpose of reducing the brightness of the first virtual image 110'; and the anti-reflection film 500 also simultaneously increases the brightness of the real image, thereby improving the separation and contrast between the virtual image and the real image of the display light source 110, and achieving excellent light control and dynamic visual effects.

[0070] Taking the anti-reflection film 500 disposed on the side of the second dimming layer 300 facing the first dimming layer 200 as an example: when light emitted by the display light source 110 enters the second dimming layer 300, the anti-reflection film 500 on the surface of the second dimming layer 300 allows more light to pass through the second dimming layer 300, resulting in a brighter real image visible to the human eye. Since more light is transmitted, the amount of light reflected back from the light-entering surface of the second dimming layer 300 to the first dimming layer 200 is significantly reduced. After receiving the reflected light, the amount of light reflected back to the second dimming layer 300 in front of the first dimming layer 200 is also correspondingly reduced, thereby reducing the brightness of the first virtual image 110'. Based on a similar principle, the brightness of the second virtual image 110" and multi-layer virtual images will also be significantly reduced.

[0071] The above design reduces the amount and intensity of light reflected from the light incident surface of the second dimming layer 300 back to the first dimming layer 200, thereby achieving the purpose of reducing the brightness of the first virtual image 110'; and the anti-reflection film 500 also simultaneously increases the brightness of the real image, thereby improving the separation and contrast between the virtual image and the real image of the display light source 110, and having excellent light control and dynamic visual effects.

[0072] This application can enhance the light management in front of the screen, the brightness of the real image is enhanced and the brightness of the virtual image is further weakened, so that the virtual image and the real image have a more obvious contrast, which is more conducive to the human eye to recognize the real image and the virtual image, thereby weakening the ghosting effect.

[0073] refer to Figure 8 In some embodiments, an anti-reflection film 500 is provided on both the surface of the first dimming layer 200 facing the second dimming layer 300 and the surface of the second dimming layer 300 facing the first dimming layer 200. When the anti-reflection film 500 is provided on the opposing surfaces of the first dimming layer and the second dimming layer, the intensity and amount of light reflected back and forth between the first dimming layer 200 and the second dimming layer 300 are further reduced, thereby further reducing the brightness of the virtual image. Furthermore, the multi-layered anti-reflection film 500 significantly increases the brightness of the real image, thereby improving the separation and contrast between the virtual and real images of the display light source 110, resulting in superior light control and dynamic visual effects.

[0074] In some embodiments, the transmittance of the first dimming layer 200 is lower than the transmittance of the second dimming layer 300 .

[0075] Specifically, the transmittance of the first dimming layer 200 is low, and the internal display light source 110 can be hidden when the light is not on, achieving the invisible deep effect of the MDL, and forming a lighting effect emerging from the darkness when the light is on; at the same time, the anti-reflection film 500 set in any layer of the first dimming layer and the second dimming layer is conducive to the light source light to pass through when lit, and the transmittance of the second dimming layer 300 is also relatively high, which is conducive to the light source light to pass through, so that it can be compatible with the high-brightness display regulatory lighting distribution of other functions in the same lamp.

[0076] In this application, a low-transmittance first dimming layer 200, a medium-transmittance first dimming layer 300, and an anti-reflection film 500 are combined to successfully achieve a hidden dynamic screen state: deep and invisible when not lit, and highlighting emerging from the darkness when lit.

[0077] In some embodiments, the thickness of the antireflection film 500 is 100nm-200nm. It has been verified that when the thickness of the antireflection film 500 is less than 100nm, a large portion of the light is still reflected between the first dimming layer 200 and the second dimming layer 300, the virtual image intensity is not significantly reduced, and some ghosting will exist between the real image and the virtual image, which is not conducive to the human eye to distinguish the real image from the virtual image and causes a certain amount of glare. When the thickness of the antireflection film 500 is greater than 200nm, the light path in the antireflection film 500 is longer, resulting in greater energy loss, and the brightness of the real image transmitted forward is not bright enough. Therefore, the thickness of the antireflection film 500 is selected to be 100nm-200nm. More preferably, the thickness of the antireflection film 500 is 150nm, the virtual image brightness is just reduced to a level where ghosting is not visible, and the energy loss when the light passes through the antireflection film 500 is not large, which can meet regulatory requirements. In addition, the thickness of the antireflection film 500 is not large, and the cost is low.

[0078] In some embodiments, the antireflection film 500 is made of magnesium fluoride. It has been proven that the antireflection film 500 made of magnesium fluoride can reduce the reflectivity to about 1% and increase the transmittance to 99%, which is conducive to achieving the intended purpose and improving the light management effect of the present application.

[0079] In some embodiments, the first dimming layer 200 and the second dimming layer 300 are made of PC or PMMA. The dimming layer is made of PC or PMMA, which has a high light transmittance and a correspondingly low reflectivity, allowing as much light as possible to penetrate the dimming layer forward and illuminate the front of the light-emitting system, thereby increasing the brightness of the real image of the display light source 110. Furthermore, the first dimming layer 200 can transmit more light reflected from the second dimming layer 300 to the first dimming layer 200 toward the display screen 100, thereby reducing the brightness of the reflected light and thus reducing the brightness of the virtual image. Therefore, the separation and contrast between the virtual image and the real image of the display light source 110 is greater, and the ghosting of the real image and the virtual image is significantly reduced, which is beneficial for the human eye to distinguish between the real image and the virtual image and reduces ghosting glare.

[0080] The present application also discloses a vehicle lamp, on which any one of the above-mentioned light-emitting systems is provided.

[0081] The present application also discloses a vehicle including the headlight described above. The display screen 100 in the headlight is combined with two dimming layers; by controlling the screen angle and the angles of the two dimming layers, the first virtual image 110' and the second virtual image 110" are moved in the direction of the display screen 100 away from the first dimming layer 200 (towards the interior of the light-emitting system), thereby increasing the horizontal distance between the virtual image and the real image of the display light source 110, making the virtual image further away from the observer in front of the light-emitting system, and the virtual image and the real image are significantly separated. The farther the virtual image is, the lower the brightness of the virtual image when it is seen by the human eye, so that the separation and contrast between the virtual image and the real image of the display light source 110 are greater; or, as Figure 7 The reciprocatingly reflected multi-level reflected light is further offset to a non-visible area, thereby directly eliminating the second layer of virtual image 110". The number of reciprocatingly reflected light and the number of virtual images are reduced, thereby also achieving the effect of improving separation and contrast, and having excellent light control and dynamic visual effects.

[0082] The present application can enhance the light management in front of the screen. The virtual image is separated from the real image and the brightness of the virtual image is greatly reduced, so that the virtual image and the real image have a clear contrast, and the ghosting of the real image and the virtual image is significantly reduced, which is more conducive to the human eye to recognize the real image and the virtual image, thereby weakening the ghosting effect and reducing glare.

[0083] The first dimming layer 200 and the second dimming layer 300 are independent and adjustable. As the design of the lamp changes, the position and angle of the first dimming layer 200 can be freely adjusted to achieve the desired light pattern. This eliminates the need for the display screen of the lighting system to adapt to fixed lamp designs, making the MDL system compatible with a wider range of automotive lighting applications.

[0084] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0085] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A lighting system, characterized in that: include: A display light source, the display light source is used to emit projection light; A first dimming layer is provided on the light-emitting side of the display light source, and is used for allowing the projection light emitted by the display light source to pass through and dimming the light; a second dimming layer, provided on a side of the first dimming layer away from the display light source, for allowing the primary light modulated by the first dimming layer and the multi-level reflected light after reciprocating reflection between the first dimming layer and the second dimming layer to pass through; There is an angle β between the surface of the first dimming layer and the vertical plane, and there is an angle α between the surface of the second dimming layer and the vertical plane, -20°≤β<0, -30°≤α<0; or, 0<β≤20°, 0<α≤30°.

2. A lighting system according to claim 1, characterized in that: Different portions of the surface of the first dimming layer have different angles β with the vertical plane; different portions of the surface of the second dimming layer have different angles α with the vertical plane.

3. A lighting system according to claim 1, characterized in that: The angle β between the first dimming layer and the vertical plane is 20°, and the angle α between the second dimming layer and the vertical plane is 30°; or, the angle β between the first dimming layer and the vertical plane is -20°, and the angle α between the second dimming layer and the vertical plane is -30°.

4. A lighting system according to claim 1, characterized in that: There are multiple display light sources distributed on the display screen and together form a light-emitting surface; there is an angle γ between the display screen and the vertical plane, and the value range of γ is: -15°≤γ<0, and 0<γ≤15°.

5. A lighting system according to claim 1, characterized in that: There are a plurality of display light sources, which are arranged in a matrix, and every two display light sources in different upper and lower rows are not in the same vertical plane.

6. A lighting system according to claim 1, characterized in that: An antireflection film is provided on at least one of a surface of the first dimming layer facing the second dimming layer and a surface of the second dimming layer facing the first dimming layer.

7. A lighting system according to claim 1, characterized in that: The transmittance of the first dimming layer is lower than the transmittance of the second dimming layer.

8. A lighting system according to claim 6, characterized in that: The thickness of the antireflection film is 100nm-200nm.

9. A lighting system according to claim 6, characterized in that: The thickness of the antireflection film is 150 nm.

10. A vehicle lamp, characterized in that: The vehicle lamp is provided with the lighting system according to any one of claims 1 to 9.

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