Light-emitting system, vehicle lamp and vehicle
The dual dimming layer system in vehicle lighting systems addresses ghosting and glare by separating virtual and real images, enhancing light control and visual clarity.
Patent Information
- Application Number
- CN202411452185.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2024-12-20
AI Technical Summary
Conventional vehicle lighting systems with single light-transmitting layers lack depth and suffer from ghosting and glare due to complex virtual images, affecting visual perception.
A light emitting system with two dimming layers, where the angles between the dimming layers and the vertical plane are controlled to separate virtual and real images, reducing brightness and eliminating ghosting through adjustable positioning and anti-reflection films.
Enhances light management by significantly separating virtual and real images, reducing ghosting and glare, and providing clear contrast for improved visual perception.
Smart Images
Figure CN119163902A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of vehicle lighting, and in particular to a lighting system, a vehicle lamp and a vehicle. Background Art
[0002] With the technological advancement of automotive lighting, as an important part of safety and aesthetics, the technological development of automotive lighting has gone through multiple stages. Traditional lighting systems are usually designed based on a single light source and reflection system, but with the development of technology, more complex and efficient lighting systems have emerged.
[0003] In recent years, the integration of screen technology MDL (Micro display lighting) has provided new possibilities for vehicle lighting systems, especially in terms of light control and dynamic display. Conventional screen systems only have 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, due to physical principles, virtual images cannot be avoided. The naked eye can see that there will be complex and obvious virtual images behind the real image, which is easy to cause ghosting and glare, affecting visual perception. Summary of the invention
[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 light emitting system, comprising:
[0006] A display screen, wherein the display screen comprises a display light source, and the display light source is used to emit projection light;
[0007] A first dimming layer, arranged in front of the light emitting side of the display screen, for allowing the projection light emitted by the display light source to pass through and dimming;
[0008] A second dimming layer is provided on a side of the first dimming layer away from the display screen, and is used for allowing primary light modulated by the first dimming layer and 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, 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] The display screen is combined with two dimming layers. By controlling the screen angle and the angle of the two dimming layers, the virtual image is moved toward the display screen away from the first dimming layer (towards the inside 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 the separation contrast between the virtual image and the real image of the display light source is greater; alternatively, the reciprocatingly reflected multi-level reflected light is offset to a non-visible area to directly eliminate the second layer of virtual image, and the number of reciprocatingly reflected light and the number of virtual images is reduced, thereby also achieving the effect of improving the separation 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, the ghosting of the real image and the virtual image is significantly reduced, which is more conducive to the human eye to identify the real image and the virtual image, thereby weakening the ghosting effect and reducing glare.
[0012] The first dimming layer and the second dimming layer are independent of each other and their positions are adjustable. When the shape of the lamp changes, the position angle of the first dimming layer can be freely adjusted to achieve the desired light shape. Therefore, the display screen of the light-emitting system of the present application is no longer restricted to the fixed shape of the lamp, so that the MDL system of the present application can be compatible with a wider range of vehicle lamp 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 the embodiment of the present application, 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 anti-reflection 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 anti-reflection film is 100nm-200nm.
[0020] The present application also discloses a vehicle lamp, on which is provided a light emitting system as described in any of the aforementioned embodiments.
[0021] The present application also discloses a vehicle, comprising the vehicle light described in any of the aforementioned embodiments.
[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 specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0024] Figure 1 A schematic diagram of the light emission 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 it emits light;
[0026] Figure 3 for Figure 1 Schematic diagram of real and virtual images when the screen system emits light;
[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°, β=20°;
[0030] Figure 7 for Figure 5 Schematic diagram of the light path when α=30°, 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 figure:
[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 layer virtual image; 110", second layer virtual image;
[0035] 200, first dimming layer;
[0036] 300, second dimming layer;
[0037] 400. Vertical plane. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here 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 which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field 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, so once an item is defined in one drawing, it does not need to be further defined and 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 cannot be understood as indicating or implying relative importance.
[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0042] In the description of this application, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0043] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can 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 rightmost dotted line 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 imaging principle of the second-order virtual image 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 As shown in the diagram, there will be complex and obvious virtual images near the real image, which can easily cause ghosting and glare and affect 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 comprises a display light source 110, wherein the display light source 110 is used to emit projection light;
[0047] The first dimming layer 200 is disposed in front of the light-emitting side 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 disposed on a side of the first dimming layer 200 away from the display screen 100, and is used for allowing 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 there is an angle α between the surface of the second dimming layer 300 and the vertical plane 400, -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 arranged in front of the projection screen, and the light pattern formed after dimming by the first dimming layer 200 and the second dimming layer 300 has a three-dimensional sense and is deeper. Double-layer dimming provides more room for light modeling, and the shape and curvature of the screen display area are easier to match with the surrounding environment than a single-layer transparent surface, and the modeling has a stronger sense of depth.
[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 (moving toward the inside 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. The virtual image and the real image are significantly separated. The farther the virtual image is, the lower the brightness of the virtual image is when it is seen by the human eye. Therefore, the separation contrast between the virtual image and the real image of the display light source 110 is relatively large; or, Figure 7 The reciprocatingly reflected multi-level reflected light is further offset to the non-visible area to directly eliminate the second virtual image 110", and the number of reciprocatingly reflected light and the number of virtual image layers are reduced, thereby achieving the effect of improving the 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 identify 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 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 face 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 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 the present application are independent of each other and their relative positions are adjustable. When the shape of the lamp changes, the position angle of the first dimming layer 200 can be freely adjusted to achieve the desired light shape. Therefore, the display screen of the lighting system of the present application is no longer restricted to adapt to the fixed shape of the lamp, so that the MDL system of the present application can be compatible with a wider range of vehicle lamp 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 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 practical applications, simulation and actual measurement show that when α=30° and β=20°, the virtual image and the real image are significantly separated, and the farther the virtual image is, the lower the brightness of the virtual image seen by the human eye is, so the separation degree distinction contrast between the virtual image and the display light source 110 is very large; at the same time, the multi-level reflected light rays of the reciprocating reflection are greatly offset, and even offset to the non-visible area, thereby directly eliminating the second layer of virtual image 110", and the number of reciprocating reflected light rays and the number of virtual images are reduced, thereby also increasing the separation degree distinction contrast, and the ghosting of the real image and the virtual image is weakened, and the ghosting brightness is reduced to only about 40% of the original, so that the human eye can finally distinguish the real image from the virtual image directly, 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 degree between the virtual image and the real image is large, the contrast is greatly reduced, the ghosting is fully eliminated, and the glare is completely eliminated, providing the best light control and dynamic visual effects.
[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 light-emitting surface of the display screen 100 to be inclined and the inclination angle γ is between -15° and 15°, after the inclined placement, some display light sources are positioned closer to the front and closer to the human eye, so that 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 contour boundary of the real image is clear and obvious, the ghost image basically disappears, and the glare is eliminated.
[0064] At the same time, according to tests, 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 at eye level, and the brightness of the upper and lower parts of the display screen is evenly distributed. When the tilt angle γ is greater than 15° or less than -15°, the tilt angle of the top or bottom of the display screen 100 is too large, resulting in a distance too close to the human eye and a high brightness, and a large brightness difference with the middle of the display screen.
[0065] In some embodiments, there are a plurality of display light sources 110 , and the plurality of display light sources 110 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 upper and lower rows are not in the same vertical plane, and a three-dimensional light-emitting surface can be seen when emitting light; at the same time, in this case, the display light sources in different upper and lower rows are at different distances from the human eye, so that the virtual image of one display light source 110 can be covered and blocked from the front by another display light source 110 in the upper or lower row, which is equivalent to directly eliminating a virtual image. Based on this principle, the purpose of significantly improving the contrast of the real image can be achieved, the contour boundary of the real image is clear and obvious, the ghost image basically disappears, and the glare is eliminated.
[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 above-mentioned display screen 100 is combined with two dimming layers. For example, the anti-reflection film 500 is arranged on the surface of the first dimming layer 200 facing the second dimming layer 300: when the 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, so that the human eye can see a brighter real image; part of the light irradiated on the light-entering surface of the second dimming layer 300 is reflected back to the light-emitting surface of the first dimming layer 200. At this time, the anti-reflection film 500 can allow more light to penetrate the first dimming layer 200 backwards to reach the display screen 100, and accordingly, the amount of light reflected forward by the first dimming layer 200 to the second dimming layer 300 again will be 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 greatly reduced.
[0069] The above-mentioned design reduces the intensity and amount of light reflected by the first dimming layer 200 to the second dimming layer 300 again, thereby achieving the purpose of reducing the brightness of the first layer virtual image 110'; and the anti-reflection film 500 also simultaneously increases the brightness of the real image, thereby improving the separation and distinction contrast between the virtual image and the real image of the display light source 110, and has excellent light control and dynamic visual effects.
[0070] Take the anti-reflection film 500 disposed on the surface of the second dimming layer 300 facing the first dimming layer 200 as an example: when the 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, so that the human eye can see a brighter real image; because more light is transmitted, the amount of light reflected back to the first dimming layer 200 by the light incident surface of the second dimming layer 300 will be significantly reduced, and the amount of light reflected by the first dimming layer 200 to the second dimming layer 300 in front after receiving the reflected light will also be reduced accordingly, 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 greatly reduced.
[0071] The above-mentioned 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 layer virtual image 110'; and the anti-reflection film 500 also simultaneously increases the brightness of the real image, thereby improving the separation and distinction contrast between the virtual image and the real image of the display light source 110, and has excellent light control and dynamic visual effects.
[0072] The present 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 distinguishing contrast, which is more conducive to the human eye to identify the real image and the virtual image, thereby weakening the ghosting effect.
[0073] refer to Figure 8 In some embodiments, 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 are both provided with an anti-reflection film 500. When the surfaces of the first dimming layer and the second dimming layer facing each other are both provided with an anti-reflection film 500, the intensity and amount of light reflected back and forth between the first dimming layer 200 and the second dimming layer 300 will be further reduced, so that the brightness of the virtual image will be weakened to a greater extent; and the multi-layer design anti-reflection film 500 also greatly increases the brightness of the real image, thereby improving the separation and distinction contrast between the virtual image and the real image of the display light source 110, and having better 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 first dimming layer 200 has a low transmittance, and can hide the internal display light source 110 when the light is not on, thereby achieving the invisible depth 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 one of the first dimming layer and the second dimming layer is beneficial to the light source light to pass through when the light is turned on, and the transmittance of the second dimming layer 300 is also relatively high, which is beneficial 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 the present application, a first dimming layer 200 with low transmittance, a first dimming layer 300 with medium transmittance, and an anti-reflection film 500 are combined to successfully achieve a hidden dynamic screen state that is deep and invisible when not lit, and emerges from the darkness with highlight when lit.
[0077] In some embodiments, the thickness of the anti-reflection film 500 is 100nm-200nm. It has been verified that when the thickness of the anti-reflection film 500 is less than 100nm, most of the light is still reflected between the first dimming layer 200 and the second dimming layer 300, the virtual image light intensity is not significantly reduced, and there will be some ghosting between the real image and the virtual image, which is not conducive to the human eye to identify the real image and the virtual image, and there is a certain glare; when the thickness of the anti-reflection film 500 is greater than 200nm, the path of the light in the anti-reflection film 500 is longer, there is a large energy loss, and the brightness of the real image light transmitted forward is not bright enough, so the thickness of the anti-reflection film 500 is selected to be 100nm-200nm. More preferably, the thickness of the anti-reflection film 500 is 150nm, the brightness of the virtual image is just reduced to the extent that the ghosting is not visible, and the energy loss when the light passes through the anti-reflection film 500 is not large, which can meet the regulatory requirements, and the thickness of the anti-reflection 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 verified 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 expected 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 PC or PMMA. The dimming layer is selected from PC or PMMA with a large light transmittance and a corresponding low reflectivity, which can allow as much light as possible to penetrate the dimming layer forward to illuminate the front of the light-emitting system and increase the brightness of the real image of the display light source 110; and the first dimming layer 200 can transmit more light reflected from the second dimming layer 300 to the first dimming layer 200 to the side of the display screen 100, reduce the brightness of the reflected light and thus reduce the brightness of the virtual image, so the separation between the virtual image and the real image of the display light source 110 has a greater contrast, and the ghosting of the real image and the virtual image is significantly reduced, which is conducive to the human eye to identify the real image and the virtual image, and reduces the 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. 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 (moving toward the inside 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 degree between the virtual image and the real image of the display light source 110 is relatively large; or, Figure 7 The reciprocatingly reflected multi-level reflected light is further offset to the non-visible area to directly eliminate the second layer of virtual image 110", and the number of reciprocatingly reflected light and virtual images is reduced, thereby achieving the effect of improving the 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, the ghosting of the real image and the virtual image is significantly reduced, which is more conducive to the human eye to identify 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 of each other and their positions are adjustable. When the shape of the lamp changes, the position angle of the first dimming layer 200 can be freely adjusted to achieve the desired light shape. Therefore, the display screen of the lighting system of the present application is no longer restricted to adapt to the fixed shape of the lamp, so that the MDL system of the present application can be compatible with a wider range of vehicle lamp applications.
[0084] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope 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 features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. A lighting system, characterized in that: include: A display screen, wherein the display screen comprises a display light source, and the display light source is used to emit projection light; A first dimming layer, arranged in front of the light emitting side of the display screen, for allowing the projection light emitted by the display light source to pass through and dimming; A second dimming layer is provided on a side of the first dimming layer away from the display screen, and is used for allowing primary light modulated by the first dimming layer and 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, 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 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.
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 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 anti-reflection film is disposed 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 light transmittance of the first dimming layer is lower than the light 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 vehicle lamp, characterized in that: The vehicle lamp is provided with a lighting system as described in any one of claims 1 to 8.
10. A means of transport, characterized in that: The vehicle lamp comprising the vehicle lamp according to claim 9.