Optical architecture for ISD interaction lamp and ISD interaction lamp using same

Abstract

The utility model discloses an optical framework used for an ISD interaction lamp and the ISD interaction lamp using the optical framework. The optical framework comprises at least one focusing lens, the first light guide bracket is connected with all the focusing lenses at the same time; at least one first light channel which is suitable for light rays collimated by the at least one focusing lens to pass through and is in one-to-one correspondence with the focusing lenses is arranged in the first light guide bracket; an obtuse included angle is formed between the second light guide support and the first light guide support; at least one second light channel suitable for light rays formed after diffuse reflection of the first light guide bracket to pass through is arranged in the first light guide bracket; the second optical channels are in one-to-one correspondence with the first optical channels; an obtuse included angle is formed between the central axis of the second optical channel and the first optical channel; the first diffusion film is arranged between the first light guide bracket and the second light guide bracket; the second diffusion film is arranged at the side end part, deviating from the first light guide bracket, of the second light guide bracket; the lampshade is arranged at the side end, opposite to the second light guide support, of the second diffusion film.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamps, in particular to an optical architecture for an ISD interactive lamp and an ISD interactive lamp using the same. Background Art

[0002] With the popularization and development of automobiles, the shapes of vehicle lamps are more cool and beautiful. People have further put forward requirements for pixel intelligent interactive signal lamps (Intelligence Signal Display, hereinafter referred to as ISD interactive lamps) and their animation visual effects. As an exterior vehicle lamp, the automotive ISD interactive lamp can enhance people's driving experience. Therefore, more and more vehicle models require the design of ISD interactive lamps.

[0003] Currently, the generally adopted design scheme of ISD interactive lamps usually includes a light source module, a light shielding module, and a lens module or a thick wall to achieve the lighting effect of pixelated intelligent interactive signal lamps.

[0004] In this regard, for example, a lighting display device disclosed in Chinese Patent Publication No. CN108775547A includes a light source module, a light shielding module, and a projection lens module, which can achieve matrix pixelated display and matrix pixelated lighting, thus meeting the requirements of safe and comfortable lighting, as well as information exchange between people and vehicles, vehicles and vehicles, and people. In this case, most of the light will be concentrated in the optical axis direction. Since the lens module is integrally injection-molded, there will be a certain degree of light leakage, and the uniformity is insufficient under large-angle observation.

[0005] Another example is a dot matrix type screen vehicle lamp disclosed in Chinese Patent Publication No. CN217875657U, which includes a light source circuit board, a light shielding bracket, a thick wall, a mask, a driver, and a lamp housing, and can meet the personalized choices of consumers; different lighting methods can enrich the overall vehicle shape and increase brand recognition, enhancing the visual effect and styling beauty. Under this structure, there are also problems of very dim light and serious light leakage at large viewing angles.

[0006] Therefore, for ISD interactive lamps, how to improve the light brightness at large viewing angles is a technical difficulty that needs to be overcome. Summary of the Utility Model

[0007] The first object of the utility model is to provide an optical architecture for an ISD interactive lamp to solve the technical problem of improving the light brightness at large viewing angles.

[0008] The second object of the utility model is to provide an ISD interactive lamp to solve the technical problem of improving the light brightness at large viewing angles.

[0009] The optical architecture for an ISD interactive lamp of the utility model is realized as follows:

[0010] An optical architecture for an ISD interactive lamp, comprising:

[0011] At least one focusing lens;

[0012] A first light guide bracket, which is connected to the focusing lens at the same time; at least one first light channel adapted to the light collimated by at least one focusing lens and corresponding one-to-one with the focusing lens is arranged in the first light guide bracket;

[0013] A second light guide bracket, in which at least one second light channel adapted to the light formed after diffuse reflection by the first light guide bracket is arranged; each of the second light channels corresponds one-to-one with the first light channel; and an obtuse angle is formed between the central axis of the second light channel and the first light channel;

[0014] A first diffusion film, which is arranged between the first light guide bracket and the second light guide bracket;

[0015] A second diffusion film, which is arranged at the side end of the second light guide bracket facing away from the first light guide bracket; and

[0016] A lamp cover, which is arranged at one side end of the second diffusion film facing away from the second light guide bracket.

[0017] In an optional implementation case of the present utility model, the haze of the second diffusion film is greater than 90%.

[0018] In an optional implementation case of the present utility model, the first diffusion film is clamped and fixed between the first light guide bracket and the second light guide bracket.

[0019] In an optional implementation case of the present utility model, the thickness of the first diffusion film is 100um - 300um.

[0020] In an optional implementation case of the present utility model, the second diffusion film is closely attached to the second light guide bracket.

[0021] In an optional implementation case of the present utility model, there is a small gap between the second diffusion film and the lamp cover, and the small gap is less than 0.5mm

[0022] In an optional implementation case of the present utility model, the thickness of the second diffusion film is 100um - 300um.

[0023] In an optional implementation case of the present utility model, the obtuse angle formed between the central axis of the second light channel and the first light channel is 135° - 160°.

[0024] In an optional implementation case of the present utility model, the outer surfaces of the first light guide bracket and the second light guide bracket are black rough surfaces; and

[0025] The inner wall surfaces of the first optical channel and the second optical channel are milky white smooth surfaces.

[0026] The ISD interactive lamp of the present utility model is realized as follows:

[0027] An ISD interactive lamp includes: the optical architecture for the ISD interactive lamp as described above, and at least one light-emitting component respectively disposed at the light-incident port of the focusing lens.

[0028] Adopting the above technical solutions, the present utility model has the following beneficial effects: For the optical architecture for the ISD interactive lamp and the ISD interactive lamp using the same of the present utility model, through the cooperation of the first light guide bracket and the second light guide bracket with two layers of the first diffusion film and the second diffusion film, the luminous brightness at various angles is increased. The central axis of the second optical channel forms an obtuse angle with respect to the first optical channel, which can prevent the human eye from directly looking at the light-emitting center of the light-emitting component from one side of the lamp shade, avoid the appearance of bright spots of the light-emitting component, and can provide sufficient diffuse reflection space to further improve the luminous uniformity. In addition, using the second diffusion film with a high haze can greatly improve the problem of light crosstalk between adjacent pixels, especially for the light homogenization effect at a large viewing angle. Description of the Drawings

[0029] Figure 1 It is a schematic diagram of the first perspective structure of the optical architecture for the ISD interactive lamp in Embodiment 1;

[0030] Figure 2 It is a schematic diagram of the second perspective structure of the optical architecture for the ISD interactive lamp in Embodiment 1;

[0031] Figure 3 It is a schematic diagram of the third perspective structure of the optical architecture for the ISD interactive lamp in Embodiment 1;

[0032] Figure 4 It is a schematic diagram of the sectional structure of the optical architecture for the ISD interactive lamp in Embodiment 1;

[0033] Figure 5 It is a schematic diagram of the partial structure of the optical architecture for the ISD interactive lamp in Embodiment 1.

[0034] In the figure: focusing lens 1, first light guide bracket 2, first optical channel 21, second light guide bracket 3, second optical channel 31, lamp shade 4, first diffusion film 5, second diffusion film 6. Detailed Embodiments

[0035] In order to make the content of the present utility model be more clearly understood, the present utility model will be further described in detail below according to specific embodiments in conjunction with the drawings.

[0036] Example 1:

[0037] Please refer to Figures 1 to 5 As shown, this embodiment provides an optical architecture for an ISD interactive lamp, including: at least one focusing lens 1, a first light guide bracket 2 connected to all the focusing lenses 1 at the same time, a second light guide bracket 3 connected to the first light guide bracket 2, and a lamp cover 4 provided on the side of the second light guide bracket 3 facing away from the first light guide bracket 2. The light-emitting surface of the lamp cover 4 here can be designed with laser engraving.

[0038] Here, taking an optional implementation case as an example in combination with the drawings, four focusing lenses 1 are designed, and four first light channels 21 adapted to the light collimated by the four focusing lenses 1 and corresponding to the four focusing lenses 1 one by one are provided in the first light guide bracket 2; four second light channels 31 adapted to the light formed after diffuse reflection by the first light guide bracket 2 are provided inside the second light guide bracket 3; each of the second light channels 31 corresponds to the first light channel 21 one by one.

[0039] In this regard, it should be noted that regarding the thickness of the first light guide bracket 2 and the second light guide bracket 3, it can be designed to have the same thickness or different thicknesses, and this embodiment does not make an absolute limitation on this.

[0040] More specifically, regarding the cross-sections of the first light channel 21 and the second light channel 31, they can be circular, rectangular or other shapes. In the drawings of this embodiment, only the case of a rectangle is taken as an example. For the sizes of the first light channel 21 and the second light channel 31, the case where the cross-sectional shapes and areas are the same can be selected to ensure that all the light after diffuse reflection through the first light channel 21 can enter the second light channel 31.

[0041] In this regard, it should be noted that the outer surfaces of the first light guide bracket 2 and the second light guide bracket 3 in this embodiment are black rough surfaces; and the inner wall surfaces of the first light channel 21 and the second light channel 31 are milky white smooth surfaces.

[0042] Based on the above structure, it should be noted that the central axis of the second light channel 31 forms an obtuse angle with respect to the first light channel 21, and this obtuse angle can be 135° to 160°. Based on the design of this obtuse angle, it prevents the human eye from directly looking at the light-emitting center of the light-emitting component from one side of the lamp cover 4, avoids the appearance of bright spots of the light-emitting component, and can provide sufficient diffuse reflection space to further improve the light-emitting uniformity. In this regard, taking an optional implementation case as an example with reference to the attached drawings, in order to make the central axis of the second light channel 31 form an obtuse angle with respect to the first light channel 21, the first light guide bracket 2 and the second light guide bracket 3 are directly designed to be in the mating situation of the above obtuse angle. In this way, when the first light guide bracket 2 and the second light guide bracket 3 are assembled in place according to the structure of the above obtuse angle, the central axes of the first light channel 21 and the second light channel 31 will naturally form the above obtuse angle.

[0043] Based on the above situation, it should also be noted that a first diffusion film 5 is designed between the first light guide bracket 2 and the second light guide bracket 3, and a second diffusion film 6 is designed at the side end of the second light guide bracket 3 facing away from the first light guide bracket 2. In this structure, the lamp cover 4 is provided on the side end of the second diffusion film 6 facing away from the second light guide bracket 3.

[0044] Among them, the first diffusion film 5 and the second diffusion film 6 can optionally use polycarbonate PC or polymethyl methacrylate PMMA as the film material. Both the first diffusion film 5 and the second diffusion film 6 are microstructured films, with high luminous efficiency, uniform light diffusion, can hide the bright spots of the light emitted by the light-emitting component, can achieve the effect of surface light emission of a single pixel, and have the characteristics of high luminous efficiency and uniform light diffusion.

[0045] The thickness of the first diffusion film 5 is 100um to 300um. The thickness of the second diffusion film 6 is 100um to 300um. The first diffusion film 5 and the second diffusion film 6 with such thicknesses are very thin compared to the thicknesses of the first light guide bracket 2 and the second light guide bracket 3. Therefore, there is very little space for retroreflection to occur inside the first diffusion film 5 and the second diffusion film 6. The haze of the second diffusion film 6 is greater than 90%. Using the second diffusion film 6 with a high haze can greatly improve the problem of light leakage between adjacent pixels, especially for the light homogenization effect at a large viewing angle. The haze of the first diffusion film 5 can be determined according to the actual effect (it is necessary to ensure the uniformity of the actual light output and there should be no bright spots), and this embodiment does not make an absolute limit in this regard.

[0046] More specifically, the first diffusion film 5 is clamped and fixed between the first light guide bracket 2 and the second light guide bracket 3. The second diffusion film 6 is closely attached to the second light guide bracket 3, and there is a small gap between the second diffusion film 6 and the lamp cover 4, and the small gap is less than 0.5 mm. In this regard, in an optional implementation case, the first diffusion film 5 is fixed between the first light guide bracket 2 and the second light guide bracket 3 by, for example, but not limited to, pasting, and the second diffusion film 6 is fixed on the second light guide bracket 3 by, for example, but not limited to, pasting.

[0047] Embodiment 2:

[0048] Based on the optical architecture of the ISD interactive lamp in Embodiment 1, this embodiment provides an ISD interactive lamp, including: the optical architecture of the ISD interactive lamp in Embodiment 1, and at least one light-emitting component corresponding to the light inlet of the focusing lens 1 one by one.

[0049] Taking an optional case as an example in combination with the attached drawings, the light-emitting component here uses an LED lamp, and when four focusing lenses 1 are used, four light-emitting components are also used. For the focusing lens 1 used in this embodiment, the material can be selected as PC, the refractive index is 1.586, the total height is 3 mm, the internal light inlet diameter is 2.4 (covering the light-emitting surface of the LED lamp), and the free-form surface height is 2 mm. The focusing lens 1 focuses the light beam diverged by the LED lamp, thereby improving the light efficiency of the entire optical system.

[0050] In the above specific embodiments, the purpose, technical solution, and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0051] In the description of the present invention, 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, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0052] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0053] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0054] In addition, terms such as "horizontal", "vertical", "hanging" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "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.

[0055] In the present utility model, unless otherwise clearly defined and limited, the first feature being above or below the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being above, over and on the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being below, under and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. An optical architecture for an ISD interactive lamp, characterized in that, include: at least one focusing lens; A first light guide bracket, which is also connected to the focusing lens; the first light guide bracket is provided with at least one first light channel suitable for light collimated by at least one focusing lens to pass through and corresponding to the focusing lens one by one; The second light guide bracket has at least one second light channel inside thereof, which is suitable for light formed after diffuse reflection by the first light guide bracket to pass through; each of the second light channels corresponds to the first light channel one by one; and the central axis of the second light channel forms an obtuse angle with respect to the first light channel; A first diffusion film, which is arranged between the first light guide bracket and the second light guide bracket; A second diffusion film is provided at a side end portion of the second light guide support facing away from the first light guide support; and The lampshade is arranged on one side end of the second diffusion film which is away from the second light guide bracket.

2. The optical architecture for the ISD interactive lamp according to claim 1, characterized in that, The haze of the second diffusion film is greater than 90%.

3. The optical architecture for an ISD interactive lamp according to claim 1 or 2, characterized in that, The first diffusion film is clamped and fixed between the first light guide bracket and the second light guide bracket.

4. The optical architecture for an ISD interactive lamp according to claim 1 or 2, characterized in that The thickness of the first diffusion film is 100um-300um.

5. The optical architecture for an ISD interactive lamp according to claim 1, wherein The second diffusion film is tightly attached to the second light guide bracket.

6. The optical architecture for an ISD interactive lamp according to claim 5, characterized in that, There is a tiny gap between the second diffusion film and the lampshade, and the tiny gap is less than 0.5 mm.

7. The optical architecture for an ISD interactive lamp according to claim 5 or 6, characterized in that, The thickness of the second diffusion film is 100 um to 300 um.

8. The optical architecture for the ISD interactive lamp according to claim 1, characterized in that, The central axis of the second light channel forms an obtuse angle of 135° to 160° with respect to the first light channel.

9. The optical architecture for the ISD interactive lamp according to claim 1, characterized in that, The outer surfaces of the first light guide bracket and the second light guide bracket are black rough surfaces; and The inner wall surfaces of the first light channel and the second light channel are milky white smooth surfaces.

10. An ISD interactive lamp, characterized in that, include: An optical architecture for an ISD interactive light as claimed in any one of claims 1 to 9, and at least one light emitting element arranged in a one-to-one correspondence at the light entrance of the focusing lens.

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