Vehicle interior and exterior decoration and lighting system device, optical module and optical control method thereof

Abstract

The invention provides a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method of the optical module, and relates to the technical field of vehicle-mounted lamps, the lighting system device comprises the optical module, the optical module comprises at least one light source, light isolation parts arranged on the two sides of the light source, and a light emitting part located in the light emitting direction of the light source; the cover plate is used for light emitting of the optical module and comprises a substrate, a primer layer, a colored paint layer and a transparent paint layer which are sequentially stacked. The base plate is located between the primer layer and the optical module, a plurality of first light holes are formed in the primer layer, a plurality of second light holes are formed in the colored paint layer, at least part of the second light holes are communicated with at least part of the first light holes, and the first light holes and the second light holes which are correspondingly communicated jointly form light hole positions. According to the lighting system device, the color of the light emitted by the optical module does not change along with the original color of the cover plate, and therefore the rich and changeable display effect of the lighting system device can be achieved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted lamps, and in particular to a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof. Background Art

[0002] Lighting system devices can be combined with exterior bumpers, exterior grilles, exterior door panels and other components. Global automobiles are accelerating towards electrification and intelligence, and there is a clear trend in automobile styling design to follow the trend: the front grille becomes a closed design or is directly cancelled, and the height of the lamp becomes narrower and longer. On the one hand, there is the demand for lighting atmosphere and Car2X interaction of smart electric vehicles, but on the other hand, the styling trend reduces the area of ​​​​luminous lamps, forming a contradiction.

[0003] The principle of existing lighting system devices is that light is emitted through translucent paint, semi-transparent materials or ink layers. The light will change with the original color of the above medium. For example, if the translucent paint is red, white light will appear as red light when it passes through the paint layer, and rich and varied display effects cannot be achieved. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof, which can improve the color of the light emitted by the optical module so that it changes with the original color of the cover plate, thereby solving the problem of a single display effect.

[0005] In one aspect of the embodiment of the present application, a lighting system device is provided, comprising an optical module, the optical module comprising at least one light source, and light-isolating components arranged on both sides of the light source and light-emitting components located in the light-emitting direction of the light source: a cover plate, the cover plate is used for light emission of the optical module, the cover plate comprises a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence; the substrate is located between the primer layer and the optical module, a plurality of first light-transmitting holes are arranged on the primer layer, a plurality of second light-transmitting holes are arranged on the color paint layer, at least some of the second light-transmitting holes are connected to at least some of the first light-transmitting holes, and the correspondingly connected first light-transmitting holes and second light-transmitting holes together form light-transmitting hole positions. The lighting system device can improve the problem that the color of the light emitted by the optical module changes with the original color of the cover plate, resulting in a single display effect.

[0006] Optionally, the first light-transmitting hole and the second light-transmitting hole have the same shape and size.

[0007] Optionally, when the cross section of the light-transmitting hole is circular, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes is less than or equal to 0.2;

[0008] And / or, the area of ​​the plurality of light-transmitting holes on the cover plate accounts for less than or equal to 3.14%.

[0009] Optionally, the opening shape of the light-isolating component is the same as the cross-sectional shape of the light-transmitting hole;

[0010] Alternatively, the projection of the opening of the light-isolating component covers the projection of the light-transmitting hole.

[0011] Optionally, the ratio range of the aperture of the light-transmitting hole and the center distance between two adjacent light-transmitting holes is determined according to the brightness of the color paint layer of the cover plate; and / or, the area ratio range of the multiple light-transmitting holes on the cover plate is determined according to the brightness of the color paint layer of the cover plate.

[0012] Optionally, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes satisfies the following formula:

[0013]

[0014] Wherein, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the paint layer of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the paint layer of the cover plate.

[0015] Optionally, the area ratio S of the plurality of light-transmitting holes on the cover plate satisfies the following formula:

[0016] S≤b*V 2 -c*V+d;

[0017] Among them, V is the brightness of the paint layer of the cover plate, b is greater than 7*10 -5 And less than 9*10 -5 b is a constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer of the cover plate.

[0018] Optionally, the light isolation component extends toward the light emitting direction of the light source, adjacent light sources are isolated by the light isolation component, the light emitting component covers gaps between multiple light sources and multiple light isolation components, and light emitted by the light source is emitted to the cover plate through the light emitting component.

[0019] Another aspect of the embodiment of the present application provides an optical module, which includes multiple light sources, and light isolation components arranged on both sides of each light source and a light emitting component located in the light emitting direction of the light source, the light isolation components extend toward the light emitting direction of the light source, adjacent light sources are isolated by the light isolation components to avoid light emitting interference, the light emitting component covers the gaps between the multiple light sources and the multiple light isolation components, and the light emitted by the light source is emitted after passing through the light emitting component. The optical module can improve the problem of the prior art that it is impossible to take into account both display effect and cost.

[0020] Optionally, the optical module further includes a circuit board, the material of the light-isolating component and the light-emitting component at least includes silicone, and the light-isolating component and the light-emitting component are sequentially formed on the circuit board.

[0021] Optionally, the light-isolating component is injection-molded on the circuit board.

[0022] Optionally, the light emitting component is filled between the light isolating components by injection molding or dispensing, and covers the light source and the light isolating component.

[0023] Optionally, a size of a bottom end of the light-isolating component close to the light source is larger than a size of a top end of the light-isolating component away from the light source, so that the light-isolating component forms a trapezoidal column structure.

[0024] Optionally, the distance between the optical center axes of two adjacent light sources is between 4 mm and 10 mm;

[0025] And / or, the distance between top ends of two adjacent light-isolating components is between 2.5 mm and 15 mm.

[0026] Another aspect of the embodiments of the present application provides an optical control method of an optical module, the optical control method of the optical module is applied to the above optical module, and the optical control method includes:

[0027] When the ambient illumination is less than the preset illumination, the driving currents of the plurality of light sources are controlled to light up respectively with their respective predetermined driving currents;

[0028] When the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources is reduced and the driving current of the remaining light sources is increased.

[0029] Optionally, when the ambient illumination is greater than or equal to a preset illumination, reducing the driving current of some light sources further includes:

[0030] Reduce the driving current of some light sources to 0;

[0031] And / or, increasing the driving current of the remaining light sources.

[0032] Optionally, the increase in the driving current of the remaining light sources is positively correlated with the decrease in the driving current of some light sources.

[0033] Optionally, the driving current I of the light source i among the remaining light sources ix Calculated according to the following formula:

[0034] I ix =ΔI x +I i max ;

[0035] Among them, ΔI x is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase in the driving current of the remaining light sources is ΔI x Calculated according to the following formula:​

[0036] ΔI x =(Δ1, Δ2, ... Δ m ) / (nm);

[0037] Where n is the total number of light sources, m is the number of light sources with reduced driving current, Δ1, Δ2, ... Δ m are respectively the reduction amounts of the predetermined driving current of each of the m light sources.

[0038] According to another aspect of the present application, a vehicle exterior is provided, comprising the above lighting system device.

[0039] According to another aspect of the present application, a vehicle interior is also provided, comprising the above lighting system device.

[0040] The beneficial effects of this application include:

[0041] The present application provides a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof. The lighting system device includes an optical module and a cover plate. The optical module includes at least one light source, and light-isolating components arranged on both sides of the light source and a light-emitting component located in the light-emitting direction of the light source; the cover plate is used for light emission of the optical module, and the cover plate includes a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence; the substrate is located between the primer layer and the optical module, a plurality of first light-transmitting holes are provided on the primer layer, and a plurality of second light-transmitting holes are provided on the color paint layer, at least some of the second light-transmitting holes are connected to at least some of the first light-transmitting holes, and the correspondingly connected first light-transmitting holes and second light-transmitting holes together form light-transmitting hole positions. Therefore, the present application uses a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence so that when the optical module emits light, the light emitted by the optical module displays the color of the optical module itself through the first light-transmitting hole and the second light-transmitting hole without being affected by the primer layer and the color paint layer. When the optical module does not emit light, due to the size distribution of the first light-transmitting hole and the second light-transmitting hole, the transmittance of the first light-transmitting hole and the second light-transmitting hole is low, so that the cover plate can display the color of its own color paint layer as a whole, and its appearance is almost the same as the appearance without the first light-transmitting hole and the second light-transmitting hole, thereby hiding the optical module behind the cover plate.

[0042] The present application also provides an optical module, including multiple light sources, and light-isolating components arranged on both sides of each light source and a light-emitting component located in the light-emitting direction of the light source, the light-isolating component extends toward the light-emitting direction of the light source, adjacent light sources are isolated by the light-isolating component to avoid light interference, the light-emitting component covers the gaps between the multiple light sources and the multiple light-isolating components, and the light emitted by the light source is emitted after passing through the light-emitting component. The present application can effectively block the light interference of adjacent light sources by arranging light-isolating components on both sides of the light source, after the light source emits light, the light is emitted through the light-emitting component, and the light-emitting component surrounds and covers the light source, so that the light emitted by the light source can enter the light-emitting component to the maximum extent, and is output by the light-emitting component, which effectively improves the light efficiency, increases the brightness of a single display pixel, and improves the display effect. In addition, the use of silicone or similar soft light-isolating components and light-emitting components can be directly injection molded onto the circuit board, reducing the installation structure of traditional plastic parts, which is conducive to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of the optical module can be 5mm to 6mm; under the premise of ensuring the uniformity of lighting, the pixel center spacing can be reduced to a minimum of 3mm to 4mm, making the pixel density higher than that of existing interactive signal lights, improving the display resolution, but lower than the pixel density of miniLED display screens, so the cost is relatively acceptable; LED light sources are preferentially side-emitting, so that the height of the light-isolating components can be reduced to a minimum of 3mm to 4mm, while achieving a high pixel filling degree, thereby reducing the space requirements of the entire interactive signal light. The lighting system device provided in this application can also achieve high-brightness and uniform lighting of low-power light sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application 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.

[0044] Figure 1 One of the structural schematic diagrams of the lighting system device provided in the embodiment of the present application;

[0045] Figure 2 The second structural diagram of the lighting system device provided in the embodiment of the present application;

[0046] Figure 3 A schematic diagram of the arrangement of the light-transmitting holes provided in the embodiment of the present application when the aperture of the light-transmitting holes is 40 um and the center distance between two adjacent light-transmitting holes is L=200 um;

[0047] Figure 4A schematic diagram of the arrangement of the light-transmitting holes provided in the embodiment of the present application when the aperture of the light-transmitting holes is 20 um and the center distance between two adjacent light-transmitting holes is L=200 um;

[0048] Figure 5 A schematic diagram of the arrangement of the light-transmitting holes provided in the embodiment of the present application when the aperture of the light-transmitting holes is 20 um and the center distance between two adjacent light-transmitting holes is L=100 um;

[0049] Figure 6 A schematic diagram of the arrangement of the light-transmitting holes provided in the embodiment of the present application when the aperture of the light-transmitting holes is 10 um and the center distance between two adjacent light-transmitting holes is L=100 um;

[0050] Figure 7 One of the schematic diagrams of the arrangement mode when the light-transmitting holes provided in the embodiment of the present application are square and the center distance between two adjacent light-transmitting holes is L=200um;

[0051] Figure 8 The second schematic diagram of the arrangement mode when the light-transmitting holes provided in the embodiment of the present application are square and the center distance between two adjacent light-transmitting holes is L=200um;

[0052] Fig. 9 One of the schematic diagrams of the arrangement of the light-transmitting holes provided in the embodiment of the present application when the light-transmitting holes are arranged in a non-array, when the center distance between two adjacent light-transmitting holes is L=100 um;

[0053] Fig.10 The second schematic diagram of the arrangement mode when the light-transmitting holes provided in the embodiment of the present application are arranged in a non-array and the center distance between two adjacent light-transmitting holes is L=100 um;

[0054] Fig.11 A schematic diagram of the structure of an optical module provided in an embodiment of the present application;

[0055] Fig.12 One of the optical module preparation process diagrams provided in the embodiment of the present application;

[0056] Fig.13 This is a second diagram of the optical module preparation process provided in an embodiment of the present application.

[0057] Icon: 1-circuit board; 2-light source; 3-light-isolating component; 4-light-emitting component; 4-1-substrate; 4-2-primer layer; 4-2-1-first light-transmitting hole; 4-3-color paint layer; 4-3-1-second light-transmitting hole; 4-4-transparent paint layer; 45-light-transmitting hole position. DETAILED DESCRIPTION

[0058] The technical solutions 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.

[0059] In the description of this application, it should be noted that the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0060] It should also be noted 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 direct connection, or 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.

[0061] The present application provides a lighting system device (non-traditional lamp) that can emit light in the grille, bumper surface, exterior door panel light area or other locations of the vehicle (such as vehicle interior lighting, atmosphere lighting, etc.), which caters to the styling requirements and can realize exterior lighting display, and the light color is not affected by the color of the cover itself. The specific structure of the new lighting system device provided by the present application will be described in detail below.

[0062] Please refer to Figure 1 , Figure 2 As shown, one aspect of an embodiment of the present application provides a lighting system device, which includes an optical module and a cover plate, wherein the optical module includes at least a light source 2, and light-isolating components 3 arranged on both sides of the light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source 2; the cover plate is used for light emission of the optical module, and the cover plate includes a substrate 4-1, a primer layer 4-2, a color paint layer 4-3 and a transparent paint layer 4-4 stacked in sequence; the substrate 4-1 is located between the primer layer 4-2 and the optical component 5, the primer layer 4-2 is provided with a plurality of first light-transmitting holes 4-2-1, the color paint layer 4-3 is provided with a plurality of second light-transmitting holes 4-3-1, at least part of the second light-transmitting holes 4-3-1 are connected with at least part of the first light-transmitting holes 4-2-1, and the correspondingly connected first light-transmitting holes 4-2-1 and second light-transmitting holes 4-3-1 together form a light-transmitting hole position 45.

[0063] The optical module includes at least one light source 2, and a light-isolating component 3 disposed on both sides of the light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source 2, wherein the light-isolating component 3 extends toward the light-emitting direction of the light source 2. When the optical module includes multiple light sources 2, adjacent light sources 2 are isolated by the light-isolating component 3 to avoid light interference, and the light-emitting component 4 covers the gaps between the multiple light sources 2 and the multiple light-isolating components 3, and the light emitted by the light source 2 is emitted after passing through the light-emitting component 4. The present application can effectively block the light interference of adjacent light sources 2 by arranging the light-isolating component 3 on both sides of the light source 2, and after the light source 2 emits the light, the light is emitted through the light-emitting component 4, and the light-emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light-emitting component 4 to the maximum extent and be output by the light-emitting component 4, thereby effectively improving the light efficiency, the brightness of a single display pixel, and the display effect.

[0064] The present application sets a plurality of first light-transmitting holes 4-2-1 on the primer layer 4-2, and sets a plurality of second light-transmitting holes 4-3-1 on the color paint layer 4-3, and makes at least some of the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 correspondingly connected, so that the corresponding first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 can form light-transmitting hole positions 45, so that the primer layer 4-2 and the color paint layer 4-3 can have multiple light-transmitting hole positions 45, so that the color of the light emitted by the light source 2 will not change with the original color of the above medium, thereby improving the display effect of the pixel display.

[0065] In some embodiments, the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 are arranged in a one-to-one correspondence in position. The present application is not limited thereto, and the number of the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 can be different.

[0066] In some embodiments, when the optical module has multiple light sources 2, the multiple light sources 2 are aligned with the light-transmitting hole positions 45 formed by the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1. However, the present application is not limited thereto, and the multiple light sources 2 may also be staggered with the light-transmitting hole positions 45 formed by the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1.

[0067] In some embodiments, when the optical module has multiple light sources 2, the light sources 2 of the optical module can be controlled individually to display different pixel patterns through the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1. However, the present application is not limited to this, and the light sources 2 of the optical module can also be controlled uniformly.

[0068] Optionally, the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 are both formed by laser process.

[0069] Optionally, in order to maintain the appearance of the cover plate and prevent the light-transmitting hole 45 from being visible, the aperture of the light-transmitting hole 45 may be between 10 um and 400 um.

[0070] Optionally, in order to maintain the appearance of the cover plate and prevent the light-transmitting holes 45 from being visible, the center distance between adjacent light-transmitting holes 45 may be between 100 um and 1000 um.

[0071] The laser process makes the cover plate transparent at the punched areas through the punching process. The larger the area ratio of the holes per unit area, the higher the transmittance, and the easier it is to identify the holes in the static appearance. Conversely, the smaller the area ratio of the holes per unit area, the lower the transmittance, and the holes are not easy to identify in the static appearance, which can be consistent with the non-punched areas.

[0072] Optionally, the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 have the same shape and size, and the corresponding first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 together form a light-transmitting hole position 45.

[0073] According to research, when the aperture of the light-transmitting hole 45 and the center distance between two adjacent light-transmitting holes 45 have a certain numerical relationship, the transmittance and the static pinhole visibility are in a balanced state.

[0074] Please refer to Figure 3 When the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 is greater than 0.2, the cover plate has a high transmittance, and the light-transmitting hole 45 can be clearly identified during the day, but the light-transmitting hole 45 can be clearly observed in the static appearance, and the appearance effect is poor. Figure 3 In the embodiment, the aperture of the light-transmitting hole 45 is 40um, the center distance between two adjacent light-transmitting holes 45 (hereinafter referred to as center distance) L=200um, and D / L=0.2. Therefore, in some preferred embodiments, the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 can be less than or equal to 0.2 to avoid the situation where the light-transmitting hole 45 can be clearly observed from the static appearance.

[0075] Please refer to Figure 4 Optionally, the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 is less than 0.1. In this case, the transmittance of the cover plate is low, the light-transmitting hole 45 can only be identified at night, the light-transmitting hole 45 cannot be observed in the static appearance, and the static appearance is excellent. Figure 6 In the figure, the aperture of the light-transmitting hole 45 is 20 um, the center distance L=200 um, and D / L=0.1.

[0076] like Figure 5 and Figure 6As shown, when the center distance changes (from 200um to 100um), maintaining the numerical relationship between the aperture of the light-transmitting hole 45 and the center distance can achieve equivalent transmittance and static appearance. Figure 5 The aperture of the middle light-transmitting hole 45 is 20um, and the center distance L = 100um; Figure 6 In the figure, the aperture of the light-transmitting hole 45 is 10 um, and the center distance L is 100 um.

[0077] Please refer to Figure 7 and Figure 8 The above-mentioned light-transmitting hole 45 is not limited to a circle, it can also be a square, a triangle or any other shape, maintaining the non-circular hole area of ​​the light-transmitting hole 45 and the area of ​​the area surrounded by the center distance, which is consistent with the light-transmitting hole 45 in the circular hole state, and can achieve equivalent transmittance and static appearance.

[0078] Please refer to Fig. 9 and Fig.10 The arrangement of the plurality of light-transmitting holes 45 is not limited to a regular matrix arrangement, and may also be an irregular arrangement.

[0079] In some embodiments of the present application, the regular arrangement or irregular arrangement of multiple light-transmitting holes 45 can make multiple light-transmitting holes 45 display pixelated graphics and animations. The shape of the light-transmitting holes 45 can be matched with the arrangement method to improve the playback effect of pixelated graphics and animations. In some embodiments, the light-transmitting holes 45 can be, for example, a triangle, and the multiple light-transmitting holes 45 can be arranged in a parallelogram manner, and the two sides of the arrangement parallelogram are respectively parallel to the two sides of the triangle of the light-transmitting holes 45, so that the corresponding row and column pixels can be presented. At the same time, since the row and column pixels are not vertical, the pixels of adjacent rows are staggered or the pixels of adjacent columns are staggered to improve the display continuity of the oblique lines in the graphics and increase the fun of the animation display. Further, the triangular shape of adjacent light-transmitting holes 45 can be inverted, that is, arranged in a manner of an equilateral triangle of an adjacent light-transmitting hole 45 and an inverted triangle of an adjacent light-transmitting hole 45, further reducing the jagged display of the oblique lines in the graphics and improving the playback effect of pixelated graphics and animations. In some variations, the shapes of the light-transmitting holes 45 may also be different from each other.

[0080] In some embodiments of the present application, each light-transmitting hole 45 can also be composed of a plurality of adjacent light-transmitting sub-holes, thereby increasing the light-transmitting area of ​​each light-transmitting hole 45. However, since the size of the light-transmitting sub-holes is relatively small, the light transmittance of each light-transmitting sub-hole is relatively small, thereby reducing the visibility of the light-transmitting hole 45 when the optical module is not emitting light.

[0081] In some embodiments of the present application, each light-transmitting hole 45 can also be composed of a plurality of adjacent light-transmitting sub-holes, thereby increasing the light-transmitting area of ​​each light-transmitting hole 45. However, since the size of the light-transmitting sub-holes is relatively small, the light transmittance of each light-transmitting sub-hole is relatively small, thereby reducing the visibility of the light-transmitting hole 45 when the optical module is not emitting light.

[0082] Furthermore, the relationship between the aperture, center distance, shape of the light-transmitting holes 45 and the arrangement of the plurality of light-transmitting holes 45 and the static appearance / transmittance can be further summarized as the ratio of the cover area occupied by the light-transmitting holes 45 per unit area.

[0083] The cover plate has light-transmitting holes 45 of unlimited shapes arranged in a preset arrangement and evenly distributed. The relationship between the area occupied by the light-transmitting holes 45 per unit area (hole area / area occupied by hole distribution) and the static appearance / transmittance is as follows:

[0084] The first case: the area of ​​the multiple light-transmitting holes 45 on the cover plate accounts for less than or equal to 0.79% (that is, the area occupied by the light-transmitting holes 45 per unit area is ≤ 0.79%). At this time, the transmittance can only be identified at night, and the light-transmitting holes 45 cannot be observed from the static appearance. The static appearance is good.

[0085] The second situation: the area of ​​the multiple light-transmitting holes 45 on the cover plate accounts for greater than or equal to 3.14% (that is, the area occupied by the light-transmitting holes 45 per unit area is ≥ 3.14%). At this time, the transmittance can be clearly identified during the day, the light-transmitting holes 45 can be clearly observed in the static appearance, and the appearance effect is not perfect.

[0086] The third case: the area of ​​the plurality of light-transmitting holes 45 on the cover plate accounts for between 0.79% and 3.14% (ie, the area of ​​the light-transmitting holes 45 per unit area is between 0.79% and 3.14%). In this case, the transmittance and the static appearance are between the above two cases.

[0087] In addition, in actual implementation, the color paint layer 4-3 can be divided into ordinary paint, pearlescent paint and metallic paint in terms of texture. Among them, metallic paint has a better effect on micropore shielding than ordinary paint and pearlescent paint because of its higher reflectivity to ambient light.

[0088] Color paint, such as car body paint color, can be defined by the HSV (Hue, Saturation, Value) system. The values ​​of H and S can be customized. The higher the value of V (Value), the lower the value of D / L (the ratio of the aperture D of the light-transmitting hole 45 to the center distance L between two adjacent light-transmitting holes 45) will be, so as to ensure the invisibility of the micropores.

[0089] In this embodiment, the numerical relationship between the ratio of the aperture of the light-transmitting hole 45 to the center distance L between two adjacent light-transmitting holes 45 and the texture and color brightness of different paint surfaces is as follows:

[0090] The ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes satisfies the following formula:

[0091]

[0092] Among them, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the color paint layer 4-3 of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the color paint layer 4-3 of the cover plate.

[0093] For example, when the body paint color of the cover plate is ordinary paint or pearlescent paint, a is 0.3, and the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 satisfies the following formula:

[0094]

[0095] Wherein, D is the aperture of the light-transmitting hole 45, L is the center distance between two adjacent light-transmitting holes 45, and V is the brightness of the color paint layer 4-3 of the cover plate.

[0096] When the body paint color of the cover plate is metallic paint, a is set to 0.4, and the ratio of the aperture of the light-transmitting hole 45 to the center distance of two adjacent light-transmitting holes 45 satisfies the following formula:

[0097]

[0098] Wherein, D is the aperture of the light-transmitting hole 45, L is the center distance between two adjacent light-transmitting holes 45, and V is the brightness of the color paint layer 4-3 of the cover plate.

[0099] The relationship between the aperture, center distance, shape of the light-transmitting holes 45 and the arrangement of the plurality of light-transmitting holes 45 and the brightness of the paint layer can be further summarized as the ratio of the cover area occupied by the light-transmitting holes 45 per unit area.

[0100] In this embodiment, the numerical relationship between the area ratio S of the plurality of light-transmitting holes 45 on the cover plate and the different paint surface textures and color brightness is as follows:

[0101] The area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula:

[0102] S≤b*V 2 -c*V+d;

[0103] Wherein, V is the brightness of the color paint layer 4-3 of the cover plate, b is greater than 7*10 -5 And less than 9*10-5 A constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer 4-3 of the cover plate.

[0104] When the color paint layer 4-3 of the cover plate is ordinary paint or pearlescent paint, b can be taken as 7.7*10 -5 , c can be set to 0.044, d can be set to 7.044, and the area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula:

[0105] S≤7.7*10 -5 *V 2 -0.044*V+7.044;

[0106] Wherein, V is the brightness of the color paint layer 4-3 of the cover plate.

[0107] When the color paint layer 4-3 of the cover plate is metallic paint, b can be taken as 8.48*10 -5 , c can be taken as 0.0645, d can be taken as 12.62, and the area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula:

[0108] S≤8.48*10 -5 *V 2 -0.0645*V+12.62;

[0109] Wherein, V is the brightness of the color paint layer 4-3 of the cover plate.

[0110] The above is merely a schematic illustration of the relationship between the brightness of different color paint layers 4 - 3 and the setting of the light-transmitting holes 45 to ensure that the visibility of the light-transmitting holes 45 is low, and the present application is not limited thereto.

[0111] Furthermore, in the optical module, the light-isolating component 3 extends toward the light-emitting direction of the light source 2, and adjacent light sources 2 are isolated by the light-isolating component 3 to avoid light-emitting interference. The light-emitting component 4 covers the gaps between multiple light sources 2 and multiple light-isolating components 3, and the light emitted by the light source 2 is emitted after passing through the light-emitting component 4.

[0112] The optical components 5 are light-isolating components 3 and light-emitting components 4 . In addition, the lighting system device may further include a circuit board 1 , and a plurality of light sources 2 are electrically connected to the circuit board 1 .

[0113] Further, the light source 2 of the optical assembly is aligned with the first light transmission hole 4-2-1 and the second light transmission hole 4-3-1. In other words, the light source 2 of the optical module is aligned with the light transmission hole position 45, that is, the light source 2 of the optical module is arranged in the same arrangement as the light transmission hole position 45, so that the light source 2 can transmit light from the light transmission hole position 45. In some specific implementations, the optical module and the cover plate may be provided with an alignment structure, and when the optical module and the cover plate are connected through the alignment structure, the light source 2 of the optical module is aligned with the light transmission hole position 45.

[0114] In some specific implementations, the opening shape of the light-isolating component 3 is the same as the cross-sectional shape of the light-transmitting hole 45, that is, when the light source 2 of the optical component is aligned with the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1, the opening of the light-isolating component 3 can overlap with the light-transmitting hole 45 to improve the utilization rate of the light source emitting light from the opening of the light-isolating component 3. In some variations, the opening projection of the light-isolating component 3 covers the projection of the light-transmitting hole 45, that is, when the light source 2 of the optical component is aligned with the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1, the opening area of ​​the light-isolating component 3 is larger than the opening area of ​​the light-transmitting hole 45 to avoid seeing the dark area caused by the light-isolating component 3 from the light-transmitting hole 45.

[0115] It should be noted that the multiple light sources 2, the multiple light-isolating components 3, the light-emitting components 4 and the circuit board 1 etc. can all be referred to below, and the same parts will not be repeated in this application.

[0116] The present application can effectively block the light interference of adjacent light sources 2 by setting light isolation components 3 on both sides of the light source 2. After the light source 2 emits light, the light is emitted through the light emitting component 4. The light emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light emitting component 4 to the maximum extent and be output by the light emitting component 4, which effectively improves the light efficiency, increases the brightness of a single display pixel, and improves the display effect. In addition, the light-isolating component 3 and the light-emitting component 4 made of silicone or similar soft materials can be directly injection molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is conducive to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of the optical module can be 5mm to 6mm; under the premise of ensuring the uniformity of lighting, the pixel center spacing can be reduced to a minimum of 3mm to 4mm, so that the pixel density is higher than that of the existing interactive signal lights, improving the display resolution, but lower than the pixel density of the miniLED display screen, so the cost is relatively acceptable; LED light sources are preferentially side-emitting, so that the height of the light-isolating component 3 can be reduced to a minimum of 3mm to 4mm, while achieving a high pixel filling degree, thereby reducing the space requirements of the entire interactive signal light. The lighting system device provided in this application can also achieve high-brightness and uniform lighting of the low-power light source 2.

[0117] Another aspect of the present application embodiment provides an optical module, please refer to Fig.11 The optical module includes a plurality of light sources 2, and light isolation components 3 disposed on both sides of each light source 2 and a light emitting component 4 located in the light emitting direction of the light source. The light isolation components 3 extend toward the light emitting direction of the light source 2. Adjacent light sources 2 are isolated by the light isolation components 3 to avoid light interference. The light emitting component 4 covers the gaps between the plurality of light sources 2 and the plurality of light isolation components 3. The light emitted by the light source 2 is emitted after passing through the light emitting component 4. The optical module can improve the problem in the prior art that low-cost low-power LEDs are difficult to achieve high-brightness and uniform lighting effects.

[0118] Among them, the light source 2 can be an LED light source. This application does not limit the type of the light source 2. For example, the light source 2 preferably uses a side-emitting LED, so as to effectively reduce the height of the light-isolating component 3. A top-emitting LED can also be used. This application does not limit the arrangement of the above-mentioned multiple light sources 2. The multiple light sources 2 can be arranged in a preset arrangement, which can be a matrix arrangement, a staggered arrangement, etc.

[0119] Different light sources 2 can be controlled independently, that is, each light source 2 can control the light brightness and light color independently, so that the light brightness and light color of each light-emitting pixel can be changed, and while realizing the traditional signal light function, it can also send pixelated interactive signals to surrounding traffic participants. In this way, the signal lights of the car can present different visual effects according to different needs, which can improve the personalized experience of users.

[0120] In summary, the present application provides an optical module, including a plurality of light sources 2, and a light-isolating component 3 disposed on both sides of each light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source, the light-isolating component 3 extending toward the light-emitting direction of the light source 2, adjacent light sources 2 are isolated by the light-isolating component 3 to avoid light-emitting interference, the light-emitting component 4 covers the gaps between the plurality of light sources 2 and the plurality of light-isolating components 3, and the light emitted by the light source 2 is emitted after passing through the light-emitting component 4. The present application can effectively block the light interference of the adjacent light sources 2 by arranging the light-isolating component 3 on both sides of the light source 2, after the light source 2 emits the light, the light is emitted through the light-emitting component 4, the light-emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light-emitting component 4 to the maximum extent, and be output by the light-emitting component 4, which effectively improves the light efficiency, the brightness of a single display pixel, and the display effect, therefore, the present application can realize high-brightness uniform lighting of the low-power light source 2.

[0121] In addition, silicone or similar soft light-isolating components 3 and light-emitting components 4 can be directly injection molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is beneficial to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of the optical module can be 5mm~6mm; under the premise of ensuring the uniformity of lighting, the pixel center spacing can be reduced to a minimum of 3mm~4mm, so that the pixel density is higher than that of the existing interactive signal lights, improving the display resolution, but lower than the pixel density of the miniLED display, so the cost is relatively acceptable; the LED light source preferably uses side-emitting type, so that the height of the light-isolating component 3 can be reduced, and the minimum can be 3mm~4mm, while achieving a high pixel filling degree, thereby reducing the space requirement of the entire interactive signal light.

[0122] In order to facilitate the control of the multiple light sources 2 , the optical module further includes a circuit board 1 , and the multiple light sources 2 are electrically connected to the circuit board 1 .

[0123] Optionally, the distance between the optical center axes of two adjacent light sources 2 is between 4 mm and 20 mm. For example, the distance between the optical center axes of two adjacent light sources 2 may be 4 mm, 5 mm, 8 mm, 10 mm, 15 mm or 20 mm.

[0124] Optionally, a size of a bottom end of the light-isolating component 3 close to the light source is larger than a size of a top end of the light-isolating component 3 away from the light source, so that the light-isolating component 3 forms a trapezoidal column structure.

[0125] The light-isolating component 3 and the light source are both located on the circuit board 1, the bottom end of the light-isolating component 3 and the bottom end of the light source 2 are coplanar, and the light-isolating component 3 extends toward the light-emitting direction of the light source 2, that is, in the light-emitting direction, the height of the light-isolating component 3 is greater than the height of the light source 2; Fig.11 It can be seen that the height of the light-isolating component 3 is at least twice the height of the light source 2, so that the light emitted by one light source 2 can be effectively blocked by two adjacent light-isolating components 3, avoiding interference between the light of the light source 2 and the light of the adjacent light source 2 and affecting the light-emitting effect.

[0126] Light-isolating components 3 are respectively arranged on both sides of each light source 2. In the light-emitting direction, the central axis of the light-isolating component 3 is parallel to the central axis of the light source 2. The light-isolating component 3 forms a trapezoidal column structure with a large bottom and a small top, so that the light of the light source 2 is emitted in a divergent shape.

[0127] The light-isolating component 3 is made of opaque silicone or similar soft material; the distance between the top ends of two adjacent light-isolating components 3 is between 2.5 mm and 15 mm.

[0128] Optionally, the light emitting component 4 is located in the light emitting direction of the light source 2, and the light emitting component 4 outputs the light emitted by the light source 2. The light emitting component 4 fills the gap between the light source 2 and the light isolation component 3, so that the light emitting component 4 covers the light emitting path of the light source 2 to the maximum extent, and the light emitted by the light source 2 can enter the light emitting component 4 in the largest amount, and then be output by the light emitting component 4. For example, the light emitting component 4 is made of silica gel or similar soft materials with scattering properties, and the height of the pixel in the light emitting direction is about 2.5mm to 10mm, that is, the height of the light emitting component 4 in the light emitting direction is between 2.5mm and 10mm, so as to optimize the efficiency of light propagation.

[0129] From the above, it can be seen that the light-isolating component 3 and the light-emitting component 4 can both be made of silicone or similar soft materials, so that the light-isolating component 3 and the light-emitting component 4 can be directly injection-molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is beneficial to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of the optical module can be between 5mm and 6mm.

[0130] In addition, the optical module provided in this application is prepared by referring to Fig.12 , Fig.13 As shown, the light source 2 can be first welded to the circuit board 1 according to the required spacing arrangement; then the light isolation component 3 can be injection molded onto the circuit board 1 using a mold; finally, the light output component 4 can be filled above the light source and the light isolation component 3 using mold injection molding or dispensing method. The preparation is simple and efficient.

[0131] In addition, optionally, a plurality of light sources 2 are evenly arranged on the circuit board 1, that is, the spacing between any two adjacent light sources 2 can be equal, but not limited to this. In some achievable methods, the spacing between at least two adjacent light sources 2 may be different. Similarly, a plurality of light-isolating components 3 are evenly arranged on the circuit board 1, and the spacing between any two adjacent light-isolating components 3 may be equal, or unequal, according to actual needs.

[0132] Another aspect of the embodiments of the present application provides an optical control method of an optical module, the optical control method of the optical module is applied to the above optical module, and the optical control method includes:

[0133] 1) When the ambient illumination is less than the preset illumination, the driving currents of the plurality of light sources 2 are controlled to light up at their respective preset driving currents;

[0134] 2) When the ambient illumination is greater than or equal to the preset illumination, the driving current of part of the light sources 2 is reduced.

[0135] It should be noted that the optical control method of the optical module provided in the present application is applied to the above optical module. The optical control method includes: controlling the magnitude of the driving current of the plurality of light sources 2 according to the ambient illumination.

[0136] In some embodiments, when the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources 2 can be reduced to 0, that is, some light sources 2 are turned off. In other embodiments, the driving current of some light sources 2 can be reduced and the driving current of the remaining light sources 2 can be increased. The increase in the driving current of the remaining light sources 2 is positively correlated with the reduction in the driving current of some light sources 2.

[0137] Specifically, the light source 2 with reduced driving current and the light source with no reduced driving current can be selected at intervals to ensure the integrity of the displayed information.

[0138] Specifically, controlling the magnitude of the driving current of the plurality of light sources 2 according to the ambient illumination can be achieved in the following manner:

[0139] 1) When the ambient illumination is less than the preset illumination, the driving currents of the multiple light sources 2 are controlled to light up at their respective preset driving currents. That is, when the ambient illumination is low, the driving currents of the multiple light sources 2 can be controlled to light up at their respective preset currents, so that the effect of high pixel resolution can be achieved when the ambient illumination is low.

[0140] 2) When the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources 2 is reduced and the driving current of the remaining light sources 2 is increased. That is, when the ambient illumination is high, the driving current of some light sources 2 can be reduced and the preset current of the remaining light sources 2 can be increased, so that the effect of high brightness pixels and high recognition can be achieved when the ambient illumination is high.

[0141] For ease of understanding, it is assumed that the optical module includes a total of n light sources 2, wherein the driving currents of each single light source 2 in the n light sources 2 are I1, I2, ..., I n , the maximum driving current allowed for a single light source 2 is I max At this time, if the ambient illumination is less than the preset illumination, each single light source 2 among the n light sources 2 is driven by its own preset driving current (I1, I2, ... I n ) is turned on; if the ambient illumination is greater than or equal to the preset illumination, the predetermined driving current of some of the n light sources 2 can be reduced, and the predetermined driving current of the remaining light sources 2 can be increased.

[0142] Assume that the predetermined driving current of m light sources 2 is reduced, wherein the reduction amount of the predetermined driving current of each light source 2 in the m light sources 2 is Δ1, Δ2, ... Δ m , the driving current I of light source i among the remaining light sources ix Calculated according to the following formula:

[0143] I ix =ΔI x +I i <Imax ;

[0144] Among them, ΔI x is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase in the driving current of the remaining light sources is ΔI x Calculated according to the following formula:

[0145] ΔI x =(Δ1, Δ2, ... Δ m ) / (nm);

[0146] Of course, the above-mentioned increase and decrease methods are only examples, and the present application is not limited to the above-mentioned theoretical calculated values. The increase in the above-mentioned predetermined driving current can be appropriately adjusted according to the distribution and heat resistance of the light source 2, and the increase and / or decrease in the driving current of each light source 2 can be adjusted to different values ​​as needed.

[0147] The present application provides an optical control method for an optical module, which can adjust the predetermined driving current of the light source 2 under different illuminations, thereby achieving the effect of high pixel resolution when the ambient illumination is low, and achieving the effect of high pixel brightness and high recognition when the ambient illumination is high, thereby achieving functional optimization without increasing hardware costs.

[0148] Optionally, the preset illumination may be 1000 lux. Of course, the preset illumination value is only an example and is not a limitation of the present application. In different application scenarios, those skilled in the art may adjust the specific value of the preset illumination according to different requirements.

[0149] The present application also provides a vehicle exterior, including the above lighting system device. The vehicle exterior can be, for example, a grille, a bumper surface, an exterior door panel, etc., but the present application is not limited thereto.

[0150] The present application also provides a vehicle interior, including the above lighting system device. The vehicle interior can be, for example, a vehicle interior lighting lamp, an atmosphere lamp, etc., but the present application is not limited thereto.

[0151] The above description is only an embodiment of the present application and is not intended to limit the protection scope of 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.

Claims

1. A lighting system device, characterized in that: include: An optical module, the optical module comprising at least one light source, and light-isolating components arranged on both sides of the light source and a light-emitting component located in the light-emitting direction of the light source; A cover plate is provided for the optical module to emit light, and the cover plate includes a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence; the substrate is located between the primer layer and the optical module, the primer layer is provided with a plurality of first light-transmitting holes, the color paint layer is provided with a plurality of second light-transmitting holes, at least part of the second light-transmitting holes are connected with at least part of the first light-transmitting holes, and the correspondingly connected first light-transmitting holes and the second light-transmitting holes together form light-transmitting hole positions.

2. The lighting system device according to claim 1, characterized in that: The first light-transmitting hole and the second light-transmitting hole have the same shape and size.

3. The lighting system device according to claim 1, characterized in that: When the cross section of the light-transmitting hole is circular, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes is less than or equal to 0.2; And / or, the area of ​​the plurality of light-transmitting holes on the cover plate accounts for less than or equal to 3.14%.

4. The lighting system device according to claim 1, characterized in that: The opening shape of the light-isolating component is the same as the cross-sectional shape of the light-transmitting hole; Alternatively, the projection of the opening of the light-isolating component covers the projection of the light-transmitting hole.

5. The lighting system device according to claim 1, characterized in that: The ratio range of the aperture of the light-transmitting hole and the center distance between two adjacent light-transmitting holes is determined according to the brightness of the paint layer of the cover plate; and / or, the area ratio range of the multiple light-transmitting holes on the cover plate is determined according to the brightness of the paint layer of the cover plate.

6. The lighting system device according to claim 5, characterized in that: The ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes satisfies the following formula: Among them, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the paint layer of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the paint layer of the cover plate.

7. The lighting system device according to claim 5, characterized in that: The area ratio S of the plurality of light-transmitting holes on the cover plate satisfies the following formula: S≤b*V 2 -c*V+d; Wherein, V is the brightness of the paint layer of the cover plate, b is greater than 7*10 -5 And less than 9*10 -5 A constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer of the cover plate.

8. The lighting system device according to claim 1, characterized in that: The light-isolating component extends toward the light-emitting direction of the light source, and the adjacent light sources are isolated by the light-isolating component. The light-emitting component covers the gaps between the plurality of light sources and the plurality of light-isolating components, and the light emitted by the light source is emitted to the cover plate after passing through the light-emitting component.

9. An optical module, characterized in that: The invention comprises a plurality of light sources, and light-isolating components arranged on both sides of each of the light sources and a light-emitting component located in the light-emitting direction of the light sources, wherein the light-isolating components extend toward the light-emitting direction of the light sources, and the adjacent light sources are isolated from each other by the light-isolating components. The light-emitting component covers the gaps between the plurality of light sources and the plurality of light-isolating components, and the light emitted by the light sources is emitted after passing through the light-emitting components.

10. The optical module according to claim 9, wherein: The light source is located on the circuit board, the materials of the light isolation component and the light emitting component at least include silicone, and the light isolation component and the light emitting component are sequentially formed on the circuit board.

11. The optical module according to claim 10, wherein: The light isolation component is injection molded on the circuit board.

12. The optical module according to claim 10, wherein: The light emitting component is filled between the light isolating components by injection molding or dispensing, and covers the light source and the light isolating components.

13. The optical module according to claim 9, wherein: The size of the bottom end of the light-isolating component close to the light source is larger than the size of the top end of the light-isolating component away from the light source, so that the light-isolating component forms a trapezoidal column structure.

14. The optical module according to any one of claims 9 to 13, characterized in that: The distance between the optical center axes of two adjacent light sources is between 4 mm and 10 mm; And / or, the distance between the top ends of two adjacent light-isolating components is between 2.5 mm and 15 mm.

15. An optical control method of an optical module, characterized in that: Applied to the optical module according to any one of claims 9 to 14, the optical control method comprises: When the ambient illumination is less than the preset illumination, controlling the driving currents of the plurality of light sources to light up respectively with respective predetermined driving currents; When the ambient illumination is greater than or equal to the preset illumination, the driving current of part of the light sources is reduced.

16. The optical control method of the optical module according to claim 15, characterized in that: When the ambient illumination is greater than or equal to the preset illumination, reducing the driving current of part of the light source further includes: Reducing the driving current of some of the light sources to 0; And / or, increasing the driving current of the remaining light sources.

17. The optical control method of the optical module according to claim 16, wherein: The increase amount of the driving current of the remaining light sources is positively correlated with the decrease amount of the driving current of some of the light sources.

18. The optical control method of the optical module according to claim 17, wherein: The driving current I of the light source i among the remaining light sources ix Calculated according to the following formula: I ix =ΔI x +I i <I max ; Among them, ΔI x is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase value of the driving current of the remaining light sources is ΔI x Calculated according to the following formula: I x =(Δ1、Δ2、……Δ) m ) / (nm); Wherein, n is the total number of the light sources, m is the number of the light sources of the reduced driving current, Δ1, Δ2, ... Δ m are respectively a reduction amount of the predetermined driving current of each of the m light sources.

19. A vehicle exterior, characterized in that: The invention comprises a lighting system device as claimed in any one of claims 1 to 8.

20. A vehicle interior, characterized in that: The invention comprises a lighting system device as claimed in any one of claims 1 to 8.

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