Optical system of cross-light-free interactive lamp

Abstract

The utility model discloses an optical system of a cross-light-free interactive lamp. The optical system comprises a light source plate; the bevel light blocking support comprises a support body made of opaque materials and at least one hollow light channel arranged in the support body. Each light channel comprises a lower light passing channel and an upper light passing channel, wherein one end of the lower light passing channel is provided with a light inlet suitable for light emitted by the light source plate to enter, and one end of the upper light passing channel is provided with a light outlet. The upper light passing channel and the lower light passing channel are obliquely distributed relative to the light source plate, and a V-shaped bend is formed between the upper light passing channel and the lower light passing channel; the diffusion film is arranged on one side of the light outlet of the bevel light blocking bracket; the lampshade is arranged at the side end, back on to the bevel light blocking support, of the diffusion film, and light blocking paint is arranged on the inner surface, facing the diffusion film, of the lampshade.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of car light, especially to a non crosslight interactive light optical system. BACKGROUND

[0002] The automobile ISD interactive light as a kind of automobile exterior lamp, can increase the better driving experience of people, so more and more vehicle types require to design ISD interactive light.The ISD interactive light optical system generally used in prior art mainly adopts the form of LED matrix+thick wall lens, LED is in thick wall lens through multiple fold reflection, forms the inevitable crosslight, light leakage phenomenon, affects display effect.Through the light blocking of each channel alone, the crosslight problem between single channel can be better solved, and the distance between LED and thick wall is reduced to improve the optical efficiency of system, but for thick wall optical system, not only can't achieve light blocking alone, shortening the interval will also affect pixel uniformity.

[0003] For example, the announcement number CN221076251U discloses an interactive screen lamp, car light and vehicle, including: substrate;Light source assembly, is provided with multiple, distributes in the substrate surface, for emitting light to the side opposite to substrate. First polycarbonate material layer, the side surface of the first polycarbonate material layer away from the substrate is printed ink pattern layer and metal light transmission layer in turn;Second polycarbonate material layer, is laid on the side of the first polycarbonate material layer away from the substrate. The interactive screen lamp further includes a reflecting bracket, which is arranged on the surface of the substrate and distributed around each light source assembly, and the reflecting bracket is staggered with the pattern on the ink pattern layer, for concentrating light emitted by the light source assembly and reflecting to the side away from the substrate. Through actual research, it is found that the reflecting bracket in the disclosed technology only collects light, hides the light spot collected by the reflecting bracket through the metal light transmission layer, which can improve the overall uniformity to a certain extent, but sacrifices most of the energy, and the overall efficiency is low, and the metal light transmission layer has high reflectivity, and the light in the first polycarbonate material layer reflects back and forth, which causes crosslight between pixels and affects display effect.

[0004] For example, the announcement number CN221076249U discloses an interactive screen lamp, comprising: a substrate; a plurality of light source assemblies are arranged on the surface of the substrate and used for emitting light to the side away from the substrate; and a light distribution part is arranged above the substrate. The interactive screen lamp further comprises: a reflecting support arranged on the surface of the substrate and distributed around each light source assembly, the reflecting support is staggered with the pattern on the ink pattern layer, and is used for condensing the light emitted by the light source assembly and reflecting the light to the diffusion film; and the diffusion film is arranged in parallel with the substrate and located on the side of the light distribution part close to the substrate, the diffusion film is supported on the end of the reflecting support away from the substrate, and is used for receiving the light reflected by the reflecting support and emitting diffused light to the side away from the substrate. It is found through actual research that the support structure used only collects light, the haze requirement of the diffusion film is high for improving uniformity, and the light loss is also large to some extent, and the overall light efficiency is low.

[0005] For example, the announcement number CN218863989U discloses a pixelated interactive signal lamp, comprising: a mounting plate, a double-color internal matching structure and a light-blocking layer; the double-color internal matching structure comprises a scattering structure and a plurality of non-light-transmitting structures, the non-light-transmitting structures are arranged on the scattering structure in a spaced manner; the mounting plate is arranged at the end of the non-light-transmitting structure away from the scattering structure, the mounting plate is provided with a light source, and the light source is arranged corresponding to the gap between adjacent non-light-transmitting structures; the non-light-transmitting structure is used for absorbing part of light; the light-blocking layer is arranged on the light-emitting surface of the scattering structure, and the light-blocking layer is arranged corresponding to part of the non-light-transmitting structure, and the light-blocking layer is used for shielding or absorbing part of light. It is found through actual research that the scattering structure of the double-color internal matching structure can shorten the gap between the diffusion structure and the light-blocking structure to some extent, thereby weakening the influence of light leakage, but from the perspective of process feasibility, the double-color internal matching structure is difficult to process, and the light still reflects between the scattering structures after passing through the light-blocking structure, thereby causing light leakage, and the influence of light leakage cannot be completely eliminated.

[0006] Therefore, for the interactive light optical system commonly used in the prior art, how to prevent light leakage between pixels and improve brightness uniformity is a technical difficulty to be overcome. Practical new type content

[0007] The purpose of the present application is to provide a non-light-leakage interactive light optical system to solve the technical problems of preventing light leakage between pixels and improving brightness uniformity.

[0008] The non-light-leakage interactive light optical system of the present application is realized as follows:

[0009] A non-light-leakage interactive light optical system, comprising:

[0010] A light source plate;

[0011] The corner light-blocking support comprises a support body made of opaque material and at least one hollow light channel arranged in the support body; each of the light channels comprises a lower light channel with a light inlet end adapted to the light emitted by the light source plate and an upper light channel with a light outlet end; the upper light channel and the lower light channel are in an inclined distribution relative to the light source plate, and the upper light channel and the lower light channel are in a V-shaped bending shape.

[0012] The diffusion film is arranged on one side of the light outlet end of the corner light-blocking support.

[0013] The lampshade is arranged on the side end of the diffusion film away from the corner light-blocking support, and the inner surface of the diffusion film is provided with a light-shielding paint.

[0014] In the optional implementation of the present application, the installation gap between the diffusion film and the corner light-blocking support is less than 0.5mm.

[0015] In the optional implementation of the present application, the diffusion film is a microstructure diffusion film.

[0016] In the optional implementation of the present application, the upper light channel and the lower light channel form an interface parallel to the light source plate.

[0017] In the optional implementation of the present application, the upper light channel and the lower light channel both have a draft angle α.

[0018] The central axis of the lower light channel and the interface form an included angle β1, and β1≤45°-α.

[0019] In the optional implementation of the present application, the light source plate is provided with a light source arranged opposite to the light inlet; and one end of the light inlet is provided with a light source prohibited area.

[0020] The width of the light source prohibited area is A, and when the maximum diameter of the light emitting surface of the light source at the light inlet end is Φ, A should satisfy the following conditions:

[0021]

[0022] D1 is the size of the light inlet along the width direction of the light source prohibited area.

[0023] In the optional implementation of the present application, the light outlet and the plane abc in the light channel form an included angle θ; the plane abc is a plane passing through one end of the light outlet and extending to one end of the light source prohibited area after passing through the dividing line; and:

[0024] Wherein

[0025] H2 is the vertical height of the upper light channel.

[0026] β2 is an included angle formed by the central axis of the upper light channel and the interface;

[0027] A should also satisfy the following conditions:

[0028]

[0029] H1 is the vertical height of the lower light channel.

[0030] In the optional implementation of the utility model, the inner wall surface of the upper light channel and the lower light channel is a smooth surface.

[0031] In the optional implementation of the utility model, the light outlet is hexagonal or square or rhombic or triangular.

[0032] In the optional implementation of the utility model, the thickness of the diffusion film is 100um-300um; the haze of the diffusion film is greater than 90%.

[0033] By adopting the above technical scheme, the utility model has the following beneficial effects: the no-crosslight interactive light optical system of the utility model hides the bright spots formed by the light sources on the light source plate through the V-shaped bent upper light channel and lower light channel arranged in the corner light blocking support. The corner light blocking support is combined with the tiny gap or even no gap installation of the diffusion film, improves the pixel uniformity under each visual angle and avoids the crosslight problem between pixels. The light blocking paint is arranged on the inner surface of the lampshade, the small installation gap reduces the crosslight between pixels caused by the inner surface reflection, and improves the display quality. The optical components required by the no-crosslight interactive light optical system are only the light blocking support and the diffusion film, which are convenient to install, the processing technology is mature, compared with the traditional scheme, the process is simple, the overall weight is small, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view structural schematic diagram of the no-crosslight interactive light optical system of the embodiment;

[0035] Figure 2 It is a left view structural schematic diagram of the no-crosslight interactive light optical system of the embodiment;

[0036] Figure 3 It is a structural schematic diagram of the light channel of the no-crosslight interactive light optical system of the embodiment;

[0037] Figure 4 It is a structural schematic diagram of the light channel of the no-crosslight interactive light optical system of the embodiment corresponding to the first visual angle in one implementation;

[0038] Figure 5 It is a structural schematic diagram of the light channel of the no-crosslight interactive light optical system of the embodiment corresponding to the second visual angle in one implementation; Figure 4Structure diagram of a second view angle of an optical system of a string-free interactive light of the embodiment;

[0039] Figure 6 Structure diagram of a first view angle of an optical system of a string-free interactive light of the embodiment in another implementation case;

[0040] Figure 7 Structure diagram of a first view angle of an optical system of a string-free interactive light of the embodiment in another implementation case.

[0041] In the figure: light source plate 1, corner light blocking support 2, upper light channel 22, lower light channel 21, light outlet 221, light inlet 211, diffusion film 3, light blocking paint 4, lampshade 5. DETAILED DESCRIPTION

[0042] In order to make the content of the utility model more easily and clearly understood, the utility model is further explained in detail below according to specific embodiments and in conjunction with the drawings.

[0043] Please refer to Figures 1 to 7 As shown in the figure, the embodiment provides an optical system of a string-free interactive light, which comprises light source plate 1, corner light blocking support 2, diffusion film 3 and lampshade 5 arranged in sequence.

[0044] Specifically, first, the light source plate 1 is provided with, for example but not limited to, LED lights for emitting light.

[0045] Second is the corner light blocking support 2, which comprises a support body made of opaque material and at least one hollow light channel arranged in the support body; each light channel comprises a lower light channel 21 formed with a light inlet at one end and adapted for light emitted by the light source plate 1 to enter and an upper light channel 22 formed with a light outlet 221 at one end; the upper light channel 22 and the lower light channel 21 are in inclined distribution relative to the light source plate 1, and the upper light channel 22 and the lower light channel 21 are in V-shaped bending. The inner wall surface of the upper light channel 22 and the lower light channel 21 is a smooth surface. The light source plate 1 is provided with a light emitting source arranged opposite to the light inlet 211.

[0046] The opaque material adopted by the support body here can be white light-proof material, or PC or similar attribute material, which has a light channel thereon, as a single pixel light channel, and a light blocking structure for isolating the mutual influence of light between pixels. In an alternative implementation case, the single pixel light channel can correspond to 1 LED light source, or 2 LED light sources of different colors, which can present a variety of color combinations when displaying interactive patterns, enriching the pattern content.

[0047] For the size of the upper light channel 22 and the lower light channel 21, the cross-sectional shape and area can be the same, and the light reflected by the lower light channel 21 can enter the upper light channel 22. It should be noted that the light outlet 221 is hexagonal or square or rhombic or triangular.

[0048] Furthermore, the diffusion film 3 is arranged on the side of the light outlet 221 of the corner light blocking support 2. It should be noted that the thickness of the diffusion film 3 is 100-300 um, and the haze of the diffusion film 3 is greater than 90%. The diffusion film 3 with such thickness is very thin relative to the thickness of the corner light blocking support 2, and thus the reflection space in the diffusion film 3 is very small. The use of the diffusion film 3 with high haze can greatly improve the light leakage between adjacent pixels, and the light uniformity is better for large viewing angles.

[0049] Based on the above, it should be noted that the installation gap between the diffusion film 3 and the corner light blocking support 2 is less than 0.5 mm, which can reduce the reflection times of the light on the inner surface of the diffusion film 3 and the lampshade 5, thereby reducing the light leakage between pixels and the misalignment between pixels when viewed at a large angle.

[0050] The diffusion film 3 can be a single-sided microstructure diffusion film 3, a double-sided microstructure diffusion film 3, or a bulk diffusion film 3, and the base material of the diffusion film 3 can be PET, PC, or acrylic. The process is gray-scale lithography technology to create the main control shape, and roll-to-roll UV transfer is used to realize mass production. Unlike general scattering materials, the thickness of the diffusion film 3 is microns, and it can be bent. The diffusion film 3 is arranged to make the light diffusion uniform, can hide the bright spots of the light emitted by the light-emitting part, can realize the effect of surface light emission of a single pixel, has high light efficiency, and has the characteristics of uniform light diffusion.

[0051] Finally, the lampshade 5 is arranged on the side of the diffusion film 3 away from the corner light blocking support 2, and the inner surface of the diffusion film 3 is provided with a light shielding paint 4. The material of the lampshade 5 can be transparent PC or acrylic. The light shielding paint 4 can be engraved by laser engraving to remove the area corresponding to the light outlet 221. Considering the installation tolerance, the engraved area should be slightly smaller than the light outlet 221, and the light shielding area of the light shielding paint 4 that is not engraved is used to cover the white non-transparent area of the corner light blocking support 2, so that the observer can only see the black appearance of the lampshade 5 with a light transmission pattern.

[0052] Next, it should be noted that the upper light channel 22 and the lower light channel 21 of the present embodiment form an interface parallel to the light source panel 1, which can be parallel to the power panel.

[0053] In addition, the central axis of the upper light passing hole is consistent with the front view direction observed after the lamp is installed. The upper light passing channel 22 and the lower light passing channel 21 both have a draft angle a; the central axis of the lower light passing channel 21 forms an angle b1 with the interface, and b1≤45°-a. When the angle b1 is larger, the number of light reflection is increased, and the energy loss is also larger. The size of b1 can be adjusted according to the actual available space.

[0054] In addition, the light source forbidden area is formed at one end of the light inlet 211. When the maximum diameter of the light emitting surface of the light source is Φ, the width A of the light source forbidden area should satisfy the following condition:

[0055]

[0056] D1 is the size of the light inlet 211 along the width direction of the light source forbidden area (it should be noted that when the cross section of the light inlet 211 is circular, D1 can be understood as the diameter of the light inlet 211, and when the cross section of the light inlet 211 is square, D1 can be understood as the side length of the light inlet 211). Through the design of the light source forbidden area, the LED and the like can be avoided to be distributed in the visible area of the human eye, so that the bright spots in the pixels can be better hidden.

[0057] The light outlet 221 and the plane abc in the light channel form an angle θ; the plane abc is a plane that extends to the end edge of the light source forbidden area through one end of the dividing line after passing through one end of the light outlet 221; and:

[0058]

[0059] H2 is the vertical height of the upper light passing channel 22; and b2 is the angle formed by the central axis of the upper light passing channel 22 and the interface.

[0060] Based on the above, it should also be noted that A should also satisfy the following condition:

[0061]

[0062] H1 is the vertical height of the lower light passing channel 21.

[0063] Furthermore,

[0064]

[0065] Accordingly, it can be inferred that θ satisfies the following relationship:

[0066]

[0067] That is

[0068] According to the above formula, the condition that beta 2 needs to satisfy is as follows:

[0069]

[0070] Finally, it is necessary to point out that, as for the light source part using LED lamp, the Lambertian emission, the maximum direct light brightness received by the human eye within 5 degrees of the visual angle, and the brightness value of the light entering the human eye after surface reflection at other angles is relatively weak. When directly viewing the LED lamp emission surface, the direct light and the reflected light have a large brightness difference, and the pixel size of the non-light-interference interactive lamp optical system is usually more than twice the size of the existing LED emission surface, thereby forming the phenomenon of bright spots and brightness unevenness in the pixel. Distributing the LED lamp outside the human eye visual area can hide the bright spots in the pixel.

[0071] In summary, for the non-light-interference interactive lamp optical system of the embodiment, the V-shaped bending upper light channel 22 and the lower light channel 21 provided in the folding angle light blocking support 2 can hide the bright spots formed by the light sources on the light source plate 1. The folding angle light blocking support 2 combined with the micro gap or even no gap installation of the diffusion film 3 improves the pixel uniformity at each visual angle and avoids the light interference between pixels. The light blocking paint 4 is arranged on the inner surface of the lampshade 5, the small installation gap reduces the light interference between pixels caused by the inner surface reflection, and the display quality is improved. The optical components required by the non-light-interference interactive lamp optical system are only the light blocking support and the diffusion film 3, which are easy to install, the processing technology is mature, compared with the traditional scheme, the process is simple, the overall weight is small, and the cost is lower.

[0072] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above is only a specific embodiment of the utility model and does not limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

[0073] In the description of the utility model, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0074] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be two element internal communication or two element mutual action relationship.For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned terms in the utility model according to specific circumstances.

[0075] In the description of the utility model, it is to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on is based on the orientation or position relationship shown in the drawing, or is the orientation or position relationship of the utility model product when it is usually placed, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it can not be understood as a limitation on the utility model.In addition, the terms "first", "second", "third" and so on are only used for distinguishing description, and can not be understood as indicating or implying relative importance.

[0076] In addition, the terms "horizontal", "vertical", "overhang" and so on do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined."Horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0077] In the utility model, unless another definite provision and limitation, the first feature is above or below the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.Furthermore, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A string-free interactive light optical system, characterized by, The application relates to a light source plate, a light-blocking support with a support body made of opaque material and at least one hollow light channel arranged in the support body, each light channel comprising a lower light channel with an inlet opening at one end for light emitted by the light source plate and an upper light channel with an outlet opening at one end, the upper and lower light channels being arranged in an inclined manner relative to the light source plate and being bent in a V shape between the upper and lower light channels, a diffusion film arranged on the side of the light-blocking support opposite the outlet opening, and a lampshade arranged on the side of the diffusion film opposite the light-blocking support, the inner surface of the lampshade being provided with light-blocking paint. The installation gap between the diffusion film and the light-blocking support is less than 0.5 mm. The diffusion film is a microstructure diffusion film. The upper and lower light channels have a demolding angle alpha. The central axis of the lower light channel and the interface form an included angle beta1, and beta1<=45-alpha.

2. The string-free interactive light optical system of claim 1, wherein, The light source plate is provided with a light source arranged opposite the inlet opening, and the inlet opening is provided with a light source non-arrangement area at one end.

3. The string-free interactive light optical system of claim 1 or 2, wherein, The width of the light source non-arrangement area is A, and when the maximum diameter of the light-emitting surface of the light source at the inlet end is Phi, A should satisfy the following conditions:

4. The string-free interactive light optical system of claim 1, wherein, D1 is the size of the inlet opening along the width direction of the light source non-arrangement area.

5. The string-free interactive light optical system of claim 4, wherein, The outlet opening and the plane abc in the light channel form an included angle theta, wherein the plane abc is a plane passing through one end of the outlet opening and extending to one end of the light source non-arrangement area through one end of the boundary line. H2 is the vertical height of the upper light channel.

6. The string-free interactive light optical system of claim 5, wherein, Beta2 is the included angle formed by the central axis of the upper light channel and the interface. A should also satisfy the following conditions: H1 is the vertical height of the lower light channel.

7. The string-free interactive light optical system of claim 6, wherein, The inner wall surface of the upper and lower light channels is a smooth surface. wherein The outlet opening is hexagonal, square, rhombic or triangular. The thickness of the diffusion film is 100-300 um, and the haze of the diffusion film is greater than 90%. ​ ​ 8. The string-free interactive light optical system of claim 1, wherein, ​ 9. The string-free interactive light optical system of claim 1, wherein, ​ 10. The string-free interactive light optical system of claim 1, wherein, ​

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