Light guide device, breathing light assembly and electronic device

Abstract

This application provides a light guide device, a breathing light assembly, and an electronic device. The light guide device includes a light guide component, comprising a light-incident portion, a connecting portion, and multiple annular light-emitting portions. The connecting portion is connected to each of the multiple annular light-emitting portions. The light-incident portion protrudes outward relative to the connecting portion, and the surface of the light-incident portion away from the connecting portion is the light-incident surface. This arrangement helps to shorten the distance between the light guide component and the light source, reduce light energy loss, increase the luminous brightness of the light guide device, and improve the lighting effect. By including multiple annular light-emitting portions in the light guide component, and having the connecting portion connected to each of the multiple annular light-emitting portions, an integrated and synergistic ring-shaped lighting effect design of multiple annular light-emitting portions is achieved, improving the refinement and aesthetics of the breathing light assembly when it emits light.

Description

Technical Field

[0001] This application relates to the field of electronic device accessories technology, and in particular to a light guide device, a breathing light assembly, and an electronic device. Background Technology

[0002] Currently, to meet users' increasingly personalized demands for the appearance of mobile phones and other electronic devices, a breathing light is usually installed near the camera module of the electronic device to illuminate and remind users when they receive wake-up commands such as incoming calls, text messages, and software messages.

[0003] In related technologies, most breathing lights in electronic devices on the market use light guiding elements such as optical fibers and light guide films to transmit light. However, optical fibers have poor bending ability, which limits the light emission shape of the breathing light and makes it difficult to achieve designs such as ring-shaped light emission. Meanwhile, light guide films have poor performance in terms of brightness and light uniformity, which affects the lighting effect of the breathing light. Utility Model Content

[0004] In view of this, this application provides a light guide device, a breathing light assembly, and an electronic device, which can improve the lighting effect and enhance the aesthetics of the breathing light assembly and electronic device.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, this application provides a light guiding device, the light guiding device comprising:

[0007] A light guide includes a light-incident portion, a connecting portion, and a plurality of annular light-emitting portions. The connecting portion is connected to the plurality of annular light-emitting portions respectively. The light-incident portion protrudes outward relative to the connecting portion, and the side surface of the light-incident portion away from the connecting portion is the light-incident surface.

[0008] In the technical solution of this application, by setting the light-incident part to bulge outward relative to the connecting part, and the side surface of the light-incident part away from the connecting part to be the light-incident surface, it is beneficial to shorten the distance between the light guide and the light source, reduce light energy loss, improve the luminous brightness of the light guide device, and improve the lighting effect; by setting the light guide to include multiple annular light-emitting parts, and the connecting part to each of the multiple annular light-emitting parts, an integrated and coordinated luminous ring lighting effect design of multiple annular light-emitting parts is realized, which improves the refinement and aesthetics of the breathing light assembly when it emits light.

[0009] In one possible implementation, the light-incident portion is located in the central region of the light guide.

[0010] In the technical solution of this application, by setting the light-incident part in the middle region of the light guide, the light emitted by the light source can diffuse evenly from the middle region to the surrounding annular light-emitting part, avoiding the problem of uneven local light intensity caused by the offset of the light-incident position, and further improving the symmetry of the annular light effect and the overall uniformity of light emission.

[0011] In one possible implementation, the light guide device further includes a first reflective film, which has a clearance hole for avoiding the light-incident portion, and has a first reflective surface for reflecting light, which covers the first surface of the light guide.

[0012] In the technical solution of this application, by covering the first surface of the light guide with the first reflective surface, the light rays that are scattered towards the light source side of the light guide can be reflected back to the light guide path, thereby reducing the loss of light during transmission and improving the light utilization rate and the luminous brightness and luminous uniformity of the light guide.

[0013] In one possible implementation, the first reflective film further has a first light-shielding surface for absorbing light, the first light-shielding surface being opposite to the first reflective surface.

[0014] In the technical solution of this application, by setting a first light-shielding surface, the light emitted from inside the light guide can be absorbed, which helps to eliminate the light leakage phenomenon on the first surface of the light guide.

[0015] In one possible implementation, the light guide device further includes a plurality of light-diffusing films, which are annular and cover the annular light-emitting portion. The light-diffusing films are disposed on the second surface of the light guide, wherein the second surface is opposite to the first surface.

[0016] In the technical solution of this application, by covering the second surface, which is the light-emitting surface, with a light-diffusing film, the light emitted from the annular light-emitting part is refracted, reflected and scattered when it passes through the light-diffusing film, and is eventually evenly distributed, so as to avoid the light being too concentrated or producing bright spots in some areas, and to make the light emitted by the light guide more uniform and full.

[0017] In one possible implementation, the light guide device further includes a second reflective film having a second reflective surface for reflecting light, the second reflective surface covering the side surface of the connector facing away from the light incident portion.

[0018] In the technical solution of this application, by covering the side of the connecting part away from the light-incident part with the second reflective surface facing the light source, the light rays escaping from the side of the connecting part away from the light-incident part can be reflected back to the light guide path, reducing the loss of light during transmission, improving the light utilization rate and the luminous brightness and luminous uniformity of the light guide. At the same time, the second reflective film can also play a certain role in blocking light, improving the "brightness" phenomenon at the position facing the light source in the light guide.

[0019] In one possible implementation, the second reflective film further has a second light-shielding surface for absorbing light, the second light-shielding surface being opposite to the second reflective surface.

[0020] In the technical solution of this application, by setting a second light-shielding surface, the light emitted from the position facing the light source in the light guide can be further blocked and absorbed, thereby better improving the "brightness" phenomenon at the position facing the light source in the light guide.

[0021] In one possible implementation, the connecting portion is recessed on the side opposite to the light-incident portion, and the wall of the guide groove is arc-shaped.

[0022] In the technical solution of this application, by setting the groove wall of the guide groove to be arc-shaped, it is beneficial for light to diffuse and spread from the light-inlet part along the groove wall of the guide groove to the surrounding area, ensuring the luminous intensity of the annular light-out part and improving the luminous uniformity of the guide component.

[0023] In one possible implementation, the incident surface is a smooth mirror.

[0024] In the technical solution of this application, the light-incident surface is a smooth mirror surface, which helps to reduce light reflection and scattering, allowing the light emitted from the light source to enter the light-incident part more effectively and improving the light utilization rate.

[0025] Secondly, this application provides a breathing light assembly, the breathing light assembly including a light source and a light guide device provided in any embodiment of the first aspect, the light source being disposed toward the light incident surface of the light guide device, the light source being used to emit light toward the light guide device.

[0026] Thirdly, this application provides an electronic device, which includes the breathing light assembly provided in the second aspect. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the light guide provided in the embodiments of this application;

[0029] Figure 2 An exploded view of the light guide device provided in the embodiments of this application;

[0030] Figure 3 This is a front view of the light guide provided in an embodiment of this application;

[0031] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0032] The reference numerals in the figure indicate:

[0033] 1-Light guide; 11-Light incident part; 111-Light incident surface; 12-Connecting part; 121-Guide groove; 13-Annular light emitting part; 14-First surface; 15-Second surface;

[0034] 2-First reflective film; 21-Aperture hole; 22-First reflective surface; 23-First light-shielding surface;

[0035] 3-homogenizing film;

[0036] 4-Second reflective film; 41-Second reflective surface; 42-Second light-shielding surface.

[0037] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] The directional terms used in the embodiments of this application, such as "up," "down," and "side," are generally based on the relative relationships shown in the figures. These directional terms are used merely to more clearly describe the relationships between structures, not to describe absolute directions. When the product is placed in different orientations, the orientation may change; for example, "up" and "down" may be interchanged.

[0040] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0041] Currently, to meet users' increasingly personalized demands for the appearance of mobile phones and other electronic devices, a breathing light is usually installed near the camera module of the electronic device to illuminate and remind users when they receive wake-up commands such as incoming calls, text messages, and software messages.

[0042] In related technologies, most breathing lights in electronic devices on the market use light guiding elements such as optical fibers and light guide films to transmit light. However, optical fibers have poor bending ability, which limits the light emission shape of the breathing light and makes it difficult to achieve designs such as ring-shaped light emission. Meanwhile, light guide films have poor performance in terms of brightness and light uniformity, which affects the lighting effect of the breathing light.

[0043] To address the aforementioned technical problems, this application provides a light guide device, a breathing light assembly, and an electronic device, which can improve the lighting effect and enhance the aesthetics of the breathing light assembly and electronic device.

[0044] like Figure 1 As shown, the light guiding device provided in this application embodiment includes a light guiding member 1. The light guiding member 1 includes a light-incident part 11, a connecting part 12 and a plurality of annular light-emitting parts 13. The connecting part 12 is connected to the plurality of annular light-emitting parts 13 respectively. The light-incident part 11 protrudes outward relative to the connecting part 12. The surface of the light-incident part 11 away from the connecting part 12 is the light-incident surface 111.

[0045] The light guide 1 is made of highly transparent materials such as resin, glass, and plastic. The light guide 1 has good light transmittance and light guiding performance. Light emitted from the light source to the light guide 1 can propagate in the light guide 1, making the light guide 1 emit light as a whole.

[0046] The annular light-emitting section 13 is annular in shape, specifically it can be circular, elliptical, rectangular, triangular, etc. Multiple annular light-emitting sections 13 can have the same or different structures. For example... Figure 1 As shown, both annular light-emitting parts 13 are circular in shape, which is suitable for surrounding the camera module of electronic devices to achieve a positive light emission design that emits light from the lens outward. This is beneficial for improving the brightness and uniformity of light emission, improving the lighting effect, and enhancing the aesthetics.

[0047] The number of annular light-emitting sections 13 is two or more, for example... Figure 1 As shown, there are two annular light-emitting parts 13, and the connecting part 12 is located between the two annular light-emitting parts 13. The light guide 1 is shaped like an "8".

[0048] By connecting multiple annular light-emitting parts 13 together using the connecting part 12, an integrated and synergistic light-emitting design of multiple annular light-emitting parts 13 is realized; furthermore, the connecting part 12 enhances the overall structural strength of the light guide 1, preventing the multiple annular light-emitting parts 13 from displacing or colliding due to mutual separation and external vibration; the connection of multiple annular light-emitting parts 13 together through the connecting part 12 also makes the assembly of the light guide 1 in electronic devices simpler and more convenient.

[0049] Optionally, the light guide 1 is an integrally molded part, which has the advantages of simple production process and compact structure, and is conducive to improving the overall structural strength of the light guide 1.

[0050] like Figure 1 As shown, the light-incident portion 11 protrudes outward from one side of the surface opposite to the connecting portion 12. The light-incident portion 11 can be in the form of a rectangular protrusion, an elliptical protrusion, a circular protrusion, or other shapes.

[0051] When the light guide device is applied to the breathing light assembly, the light-incident surface 111 is set opposite to the light source. The convex design of the light-incident part 11 helps to shorten the distance between the light guide 1 and the light source, reduce light energy loss, and improve light coupling efficiency.

[0052] The light guide device provided in this application embodiment, by setting the light-incident part 11 to protrude outward relative to the connecting part 12, and the side surface of the light-incident part 11 away from the connecting part 12 as the light-incident surface 111, is beneficial to shorten the distance between the light guide 1 and the light source, reduce light energy loss, improve the luminous brightness of the light guide device, and improve the lighting effect; by setting the light guide 1 to include multiple annular light-emitting parts 13, and the connecting part 12 to each of the multiple annular light-emitting parts 13, the integrated and coordinated luminous effect design of multiple annular light-emitting parts 13 is realized, which improves the refinement and aesthetics of the breathing light assembly when it emits light.

[0053] In some embodiments, the light-incident portion 11 is located in the central region of the light guide 1.

[0054] For example Figure 1 As shown, the light-incident part 11 is located between the two annular light-outcrystal parts 13 and is at the center of the light guide 1.

[0055] Since the light-incident section 11 is used to receive the light emitted from the light source, by setting the light-incident section 11 in the middle region of the light guide member 1, the light emitted from the light source can diffuse evenly from the middle region to the surrounding annular light-emitting section 13, avoiding the problem of uneven local light intensity caused by the offset of the light-incident position, and further improving the symmetry of the annular light effect and the overall uniformity of light emission.

[0056] In some embodiments, such as Figure 2As shown, the light guiding device also includes a first reflective film 2, which has a clearance hole 21 for avoiding the light-incident part 11. The first reflective film 2 has a first reflective surface 22 for reflecting light, and the first reflective surface 22 covers the first surface 14 of the light guiding member 1.

[0057] The first reflective film 2 is an optical thin film material used to reflect light, which can reduce light loss and increase luminous brightness.

[0058] like Figure 1 As shown, the first surface 14 is the surface on the side where the light-incident portion 11 is located on the light guide 1 (i.e., Figure 2 The lower surface of the light guide 1 is the side surface of the light guide 1 closest to the light source.

[0059] The reflectivity of the first reflective surface 22 is above 90%. The first reflective surface 22 can be a white reflective surface, a silver reflective surface, etc., and this application does not make specific limitations.

[0060] By covering the first surface 14 of the light guide 1 with the first reflective surface 22, the light rays that escape from the side of the light guide 1 toward the light source can be reflected back to the light guide path, reducing the loss of light during transmission and improving the light utilization rate and the luminous brightness and luminous uniformity of the light guide 1.

[0061] In some embodiments, such as Figure 2 As shown, the first reflective film 2 also has a first light-shielding surface 23 for absorbing light, and the first light-shielding surface 23 is opposite to the first reflective surface 22.

[0062] The first light-shielding surface 23 and the first reflective surface 22 are positioned opposite to each other along the thickness direction of the first reflective film 2. For example, the first light-shielding surface 23 is black, which allows it to better absorb light.

[0063] By setting the first light-shielding surface 23, the light emitted from the inside of the light guide 1 can be absorbed, which helps to eliminate the light leakage phenomenon of the first surface 14 of the light guide 1.

[0064] The first reflective film 2 achieves a reflection effect on one side through the first reflective surface 22 and a light absorption effect on the other side through the first light-blocking surface 23. Integrating the two optical functions into one unit helps to reduce the number of films and improve assembly efficiency.

[0065] In some embodiments, such as Figure 2 As shown, the light guiding device also includes multiple light-diffusing films 3. The light-diffusing films 3 are annular and cover the annular light-emitting part 13. The light-diffusing films 3 are disposed on the second surface 15 of the light guiding member 1, wherein the second surface 15 is opposite to the first surface 14.

[0066] The second surface 15 is the side of the light guide 1 that faces away from the light-incident part 11 (i.e.) Figure 2The upper surface of the light guide 1 is also the light-emitting surface of the light guide 1.

[0067] The light-diffusing film 3 has high transparency and good optical diffusion effect, which can play a role in uniformly scattering light. By covering the second surface 15, which is the light-emitting surface, the light emitted by the annular light-emitting part 13 is refracted, reflected and scattered when it passes through the light-diffusing film 3, and finally uniformly distributed, avoiding the light from being too concentrated or producing bright spots in some areas, so that the light emitted by the light guide 1 is more uniform and full.

[0068] In some embodiments, such as Figure 2 As shown, the light guiding device also includes a second reflective film 4, which has a second reflective surface 41 for reflecting light. The second reflective surface 41 covers the side surface of the connecting portion 12 facing away from the light-incident portion 11 (i.e., Figure 2 (The upper surface of the middle connecting part 12).

[0069] The second reflective film 4 is an optical thin film material used to reflect light, which can reduce light loss and improve light brightness.

[0070] The reflectivity of the second reflective surface 41 is above 90%. The second reflective surface 41 can be a white reflective surface, a silver reflective surface, etc., and this application does not make specific limitations.

[0071] By covering the side of the connecting part 12 away from the light-incident part 11 with the second reflective surface 41 facing the light source, the light rays escaping from the side of the connecting part 12 away from the light-incident part 11 can be reflected back to the light guide path, reducing the loss of light during transmission, improving the light utilization rate and the luminous brightness and luminous uniformity of the light guide 1. At the same time, the second reflective film 4 can also play a certain role in blocking light, improving the "brightness" phenomenon at the position facing the light source in the light guide 1.

[0072] like Figure 2 As shown, the second reflective film 4 also has a second light-shielding surface 42 for absorbing light, and the second light-shielding surface 42 is opposite to the second reflective surface 41.

[0073] The second light-shielding surface 42 and the second reflective surface 41 are opposite to each other along the thickness direction of the second reflective film 4. For example, the second light-shielding surface 42 is black, which allows it to better absorb light.

[0074] By setting a second light-shielding surface 42, the light emitted from the position facing the light source in the light guide 1 can be further blocked and absorbed, thereby better improving the "brightness" phenomenon at the position facing the light source in the light guide 1.

[0075] The second reflective film 4 achieves a reflection effect on one side through the second reflective surface 41, and achieves a light absorption / shielding effect on the other side through the second light-shielding surface 42. Integrating the two optical functions into one unit helps to reduce the number of films and improve assembly efficiency.

[0076] In some embodiments, the connecting portion 12 is recessed on the side opposite to the light-receiving portion 11, and the wall of the guide groove 121 is arc-shaped.

[0077] like Figure 3 As shown, the guide groove 121 is located on the side where the second surface 15 is located on the light guide 1. Figure 4 As shown, the guide groove 121 is recessed in the direction toward the light-incident portion 11, and the guide groove 121 and the light-incident portion 11 are arranged along the thickness direction of the connecting portion 12.

[0078] The light-incident section 11 faces the light source, and the light is transmitted from the light-incident section 11 to the guide groove 121. By setting the groove wall of the guide groove 121 to be arc-shaped, it is beneficial for the light to diffuse and spread from the light-incident section 11 along the groove wall of the guide groove 121 to the surrounding areas, ensuring the luminous intensity of the annular light-emitting section 13 and improving the luminous uniformity of the guide.

[0079] In some embodiments, the light-incident surface 111 is a smooth mirror surface.

[0080] For example, the light-incident surface 111 achieves a smooth mirror effect through mechanical polishing, chemical polishing, electrolytic polishing or other mirror treatment processes, which helps to reduce light reflection and scattering, allowing the light emitted from the light source to enter the light-incident part 11 more effectively, thereby improving the light utilization rate.

[0081] Optionally, the surface roughness Ra of the incident surface 111 is ≤0.8μm to achieve a smooth mirror effect.

[0082] This application embodiment also provides a breathing light assembly, which includes a light source and a light guide device provided in any of the above embodiments. The light source is disposed toward the light incident surface 111 of the light guide device, and the light source is used to guide the light source to emit light from the light guide device.

[0083] This application also provides an electronic device including the breathing light assembly provided in the above embodiments. Users can see the light from the light guide device from the exterior of the electronic device, achieving the effect of a breathing light.

[0084] Electronic devices include, but are not limited to, mobile or fixed devices such as mobile phones, laptops, tablets, e-book readers, wearable devices, navigators, handheld game consoles, virtual and reality devices, and augmented reality devices.

[0085] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0086] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0087] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A light guiding device, characterized in that, The light guiding device includes: The light guide (1) includes a light-incident part (11), a connecting part (12) and a plurality of annular light-emitting parts (13). The connecting part (12) is connected to the plurality of annular light-emitting parts (13) respectively. The light-incident part (11) protrudes outward relative to the connecting part (12). The side surface of the light-incident part (11) away from the connecting part (12) is the light-incident surface (111).

2. The light guiding device according to claim 1, characterized in that, The light-incident part (11) is located in the middle region of the light guide (1).

3. The light guiding device according to claim 1, characterized in that, The light guiding device further includes a first reflective film (2), which has a clearance hole (21) for avoiding the light-incident part (11). The first reflective film (2) has a first reflective surface (22) for reflecting light, and the first reflective surface (22) covers the first surface (14) of the light guiding member (1).

4. The light guiding device according to claim 3, characterized in that, The first reflective film (2) also has a first light-shielding surface (23) for absorbing light, the first light-shielding surface (23) being opposite to the first reflective surface (22).

5. The light guiding device according to claim 3, characterized in that, The light guiding device further includes a plurality of light-diffusing films (3), the light-diffusing films (3) are annular and cover the annular light-emitting part (13), the light-diffusing films (3) are disposed on the second surface (15) of the light guiding member (1), wherein the second surface (15) is opposite to the first surface (14).

6. The light guiding device according to claim 3 or 5, characterized in that, The light guiding device further includes a second reflective film (4), which has a second reflective surface (41) for reflecting light, and the second reflective surface (41) covers the side surface of the connecting part (12) opposite to the light-incident part (11).

7. The light guiding device according to claim 6, characterized in that, The second reflective film (4) also has a second light-shielding surface (42) for absorbing light, the second light-shielding surface (42) being opposite to the second reflective surface (41).

8. The light guiding device according to claim 1, characterized in that, The connecting part (12) has a guide groove (121) recessed on the side opposite to the light-incident part (11), and the groove wall of the guide groove (121) is arc-shaped.

9. The light guiding device according to claim 1, characterized in that, The light-incident surface (111) is a smooth mirror surface.

10. A breathing light assembly, characterized in that, The breathing light assembly includes a light source and a light guide device as described in any one of claims 1 to 9, wherein the light source is disposed toward the light incident surface (111) of the light guide device, and the light source is used to emit light toward the light guide device.

11. An electronic device, characterized in that, The electronic device includes the breathing light assembly of claim 10.

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