Lampshade assembly, light module and electronic device

Abstract

The present disclosure is a lampshade assembly, a light module and an electronic device, which belongs to the field of optical design technology. The lampshade assembly is used to cover the outside of a flash light assembly, and the lampshade assembly comprises a lampshade and a super surface structure. The super surface structure is fixed to the lampshade, and the super surface structure is used to converge the infrared light emitted by the flash light assembly. The present disclosure can improve the energy density of the infrared light, thereby increasing the infrared remote control distance of the flash assembly.

Description

Technical Field

[0001] This disclosure relates to the field of optical design technology, and in particular to a lampshade assembly, a lighting module, and an electronic device. Background Technology

[0002] Infrared remote control lights are often installed in mobile phones and other electronic devices to enable infrared control functions.

[0003] In related technologies, in order to reduce the number of openings in electronic devices, infrared remote control lights are often integrated into the flash unit.

[0004] However, in flash units, specific optical structures are often used to diffuse the visible light emitted by the flash, which causes the infrared light emitted by the infrared remote control light to also diffuse, resulting in a decrease in infrared light energy density and consequently a reduction in the infrared remote control distance of the flash unit. Utility Model Content

[0005] This disclosure provides a lampshade assembly, a lighting module, and an electronic device, which can solve the aforementioned technical problems existing in related technologies. The technical solution is as follows:

[0006] In a first aspect, a lampshade assembly is provided for covering the outside of a flash assembly. The lampshade assembly includes a lampshade and a metasurface structure. The metasurface structure is fixed to the lampshade and is used to converge the infrared light emitted by the flash assembly.

[0007] Thus, by installing a metasurface structure on the lamp cover, the infrared light emitted by the flash assembly can be focused, thereby increasing the energy density of the infrared light and thus increasing the infrared remote control distance of the flash assembly.

[0008] In some possible implementations, the metasurface structure is also used to diverge the visible light emitted by the flash assembly, or the focal length of the metasurface structure for the visible light emitted by the flash assembly is infinite.

[0009] In particular, when the metasurface structure is also used to diffuse the visible light emitted by the flash assembly, it can further improve the diffusion effect of the visible light emitted by the flash assembly; when the focal length of the metasurface structure for the visible light emitted by the flash assembly is infinite, it can prevent the metasurface structure from converging the visible light emitted by the flash assembly, so as to avoid the metasurface structure interfering with the diffusion of the visible light emitted by the flash assembly.

[0010] In some possible implementations, the metasurface structure is embedded within the lampshade.

[0011] This allows for a stable connection between the metasurface structure and the lampshade, reducing the possibility of the metasurface structure detaching from the lampshade when subjected to external impacts, thereby ensuring the stability of the lampshade assembly during use.

[0012] In some possible implementations, the lampshade encloses the metasurface structure.

[0013] In this way, the metasurface structure can be prevented from detaching from the lamp cover when subjected to external impact, thus ensuring that the lamp cover assembly can always diffuse infrared light.

[0014] In some possible implementations, the lampshade has a receiving groove that accommodates the metasurface structure.

[0015] In this way, a stable connection between the metasurface structure and the lampshade can be achieved, while the fixed connection between the metasurface structure and the lampshade can be achieved relatively conveniently.

[0016] In some possible implementations, the metasurface structure is fixed to the surface of the lampshade.

[0017] In this way, compared with the solution of embedding metasurface structures into the lampshade, the structural complexity of the lampshade can be reduced, thereby improving the yield rate of the lampshade.

[0018] In some possible implementations, the metasurface structure is fixedly connected to the surface of the lampshade via an optically transparent adhesive.

[0019] In this way, the ease of connecting the metasurface structure to the lampshade can be improved during the assembly of the lampshade assembly.

[0020] In some possible implementations, the surface of the lampshade near the flash assembly has Fresnel patterns.

[0021] In this way, the visible light emitted by the flash unit will be diffused after passing through the Fresnel pattern, thereby further diffusing the visible light of the flash unit and allowing the visible light to illuminate more areas.

[0022] In some possible implementations, the lampshade is made of plastic and is formed by injection molding.

[0023] This reduces the production cost of lampshades and increases their production efficiency.

[0024] In a second aspect, a lighting module is provided, which includes a flash assembly and a lampshade assembly provided in the first aspect and its possible implementations, the lampshade assembly being disposed on the outside of the flash assembly.

[0025] Thirdly, an electronic device is provided, the electronic device comprising the lighting module provided in the second aspect and its possible implementations.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure, 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 disclosure. 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 a lighting module provided in an embodiment of this disclosure;

[0029] Figure 2 This is a schematic diagram of another lighting module provided in an embodiment of this disclosure;

[0030] Figure 3 This is a schematic diagram of the structure of another lighting module provided in the embodiments of this disclosure.

[0031] Figure label:

[0032] 01. Lampshade assembly; 1. Lampshade; 11. Receiving groove; 2. Metasurface structure;

[0033] 02. Flash assembly; 3. Base; 31. Mounting slot; 4. Light-emitting component; 41. First light-emitting element; 42. Second light-emitting element. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] This disclosure provides a lampshade assembly 01, such as... Figure 1 As shown, the lamp cover assembly 01 is used to cover the outside of the flash assembly 02. The lamp cover assembly 01 includes a lamp cover 1 and a metasurface structure 2. The metasurface structure 2 is fixed to the lamp cover 1 and is used to converge the infrared light emitted by the flash assembly 02.

[0037] In this embodiment of the present disclosure, by installing a metasurface structure 2 on the lamp cover 1, the infrared light emitted by the flash assembly 02 can be focused, thereby increasing the energy density of the infrared light and thus increasing the infrared remote control distance of the flash assembly.

[0038] in, Figures 1 to 3The diagram illustrates the path of light emitted from the flash assembly 02 as it passes through the lampshade assembly 01 in different structural forms. It should be noted that this diagram is for illustrative purposes only and does not represent the actual path of the light; for example, the refraction of light by the lampshade 1 is omitted in this diagram.

[0039] Among them, combined Figure 1 As shown, the aforementioned "metasurface structure 2 for converging the infrared light emitted by the flash assembly 02" means that the metasurface structure 2 has a positive focal length for the infrared light emitted by the flash assembly 02, and the infrared light will converge after passing through the metasurface structure 2. In other words, the metasurface structure 2 acts like a convex lens for the infrared light emitted by the flash assembly 02.

[0040] Metasurfaces are a novel type of artificial two-dimensional material structure that enables the manipulation of light through arrays of micro-units. These micro-units can be composed of subwavelength-scale (typically nanometer or micrometer-scale) microstructures, such as periodic arrangements of metals, dielectrics, or composite materials, with each unit capable of independently modulating electromagnetic wave properties. Optionally, the metasurface structure 2 can be a superlens.

[0041] Optionally, the focusing efficiency of the metasurface structure 2 for infrared light can be, for example, but not limited to, 80%.

[0042] In some possible implementations, the metasurface structure 2 is also used to diffuse the visible light emitted by the flash assembly 02.

[0043] In this way, the visible light emitted by the flash assembly 02 can be further diffused through the metasurface structure 2, and the diffused visible light can cover a wider area. As a result, during the use of the flash assembly 02, for example when taking a picture, the possibility of the image being too bright in the center and too dark at the edges due to excessively concentrated light can be reduced.

[0044] The aforementioned statement that "the metasurface structure 2 is also used to diverge the visible light emitted by the flash assembly 02" means that the metasurface structure 2 has a negative focal length for the visible light emitted by the flash assembly 02, and thus has a diverging effect on the visible light emitted by the flash assembly 02. After the visible light passes through the metasurface structure 2, it diverges. In other words, the metasurface structure 2 acts similarly to a concave lens for the visible light emitted by the flash assembly 02.

[0045] In some other possible implementations, the focal length of the metasurface structure 2 for the visible light emitted by the flash assembly 02 is infinite.

[0046] Thus, when the visible light emitted by the flash assembly 02 passes through the metasurface structure 2, the metasurface structure 2 will not converge the visible light emitted by the flash assembly 02, thereby avoiding affecting the divergence effect of the divergent visible light emitted by the flash assembly, so as to ensure the divergence requirement of the visible light.

[0047] The aforementioned statement that "the focal length of the metasurface structure 2 for the visible light emitted by the flash assembly 02 is infinite" means that the metasurface structure 2 neither diverges nor converges the visible light emitted by the flash assembly 02. In other words, the metasurface structure 2 acts similarly to a plane lens for the visible light emitted by the flash assembly 02.

[0048] In some other possible implementations, due to tolerances, the metasurface structure 2 has a weak converging effect on the visible light emitted by the flash assembly 02. However, since the visible light itself is divergent, although the metasurface structure 2 has a weak converging effect on the visible light emitted by the flash assembly 02, the divergent visible light remains divergent after passing through the metasurface structure 2. This situation should also fall within the protection scope of the embodiments of this disclosure.

[0049] In some possible implementations, the metasurface structure 2 is embedded within the lampshade 1.

[0050] In this way, the metasurface structure 2 can be stably connected to the lamp cover 1, reducing the possibility of the metasurface structure 2 detaching from the lamp cover 1 when subjected to external impact, thereby ensuring the stability of the lamp cover assembly 01 during use.

[0051] In some possible implementations, such as Figure 1 As shown, the lampshade 1 encloses the metasurface structure 2.

[0052] In this way, the metasurface structure 2 can be prevented from detaching from the lampshade 1 when subjected to external impact, thereby ensuring that the lampshade assembly 01 can always diffuse infrared light, that is, ensuring the stability of the lampshade assembly 01 during use.

[0053] In this context, "lampshade 1 enveloping metasurface structure 2" means that lampshade 1 completely encloses metasurface structure 2, and the portion of lampshade 1 including metasurface structure 2 forms a solid structure with metasurface structure 2. Taking lampshade 1 as an injection-molded plastic structure as an example, before injection molding, metasurface structure 2 can be placed in the mold first, and then injection molding can begin to complete the molding process of lampshade 1, thereby ensuring that lampshade 1 tightly envelops metasurface structure 2.

[0054] In some possible implementations, such as Figure 3 As shown, the lampshade 1 has a receiving groove 11, which receives the metasurface structure 2.

[0055] In this way, a stable connection between the metasurface structure 2 and the lampshade 1 can be achieved, while the fixed connection between the metasurface structure 2 and the lampshade 1 can be achieved relatively conveniently.

[0056] Optionally, the metasurface structure 2 is fixedly connected to the inner wall of the receiving groove 11 by optically transparent adhesive.

[0057] In some possible implementations, such as Figure 2 As shown, the metasurface structure 2 is fixed to the surface of the lampshade 1.

[0058] In this way, compared with the solution of embedding the metasurface structure 2 into the lampshade 1, the structural complexity of the lampshade 1 can be reduced, thereby improving the yield of the lampshade 1.

[0059] The metasurface structure 2 can be fixed on the surface of the lamp cover 1 near the flash assembly 02 or on the surface of the lamp cover 1 away from the flash assembly 02. This embodiment does not limit this.

[0060] In some possible implementations, the metasurface structure 2 is fixedly connected to the surface of the lampshade 1 by an optically transparent adhesive.

[0061] Thus, during the assembly of the lampshade assembly 01, the connection between the metasurface structure 2 and the lampshade 1 can be achieved through optical transparent adhesive, thereby improving the convenience of connecting the metasurface structure 2 and the lampshade 1.

[0062] In some possible implementations, the surface of the lampshade 1 near the flash assembly 02 has Fresnel patterns.

[0063] In this way, the visible light emitted by the flash assembly 02 is diffused after passing through the Fresnel pattern, further dispersing the visible light and allowing it to illuminate more areas. Therefore, during the use of the flash assembly 02, for example when taking a photo, the possibility of the image being too bright in the center and too dark at the edges due to excessively concentrated light can be reduced.

[0064] Among them, the Fresnel pattern also has a certain diverging effect on the infrared light emitted by the flash assembly 02, but under the converging effect of the metasurface structure 2, the lamp cover assembly 01 as a whole still plays a converging role on the infrared light.

[0065] In the case where the surface of the lamp cover 1 near the flash assembly 02 has Fresnel patterns, if the metasurface structure 2 is fixed to the surface of the lamp cover 1, then the metasurface structure 2 is fixed to the surface of the lamp cover 1 away from the flash assembly 02, so as to facilitate the fixation of the metasurface structure 2 and the lamp cover 1.

[0066] In some possible implementations, the lampshade 1 is made of plastic and is formed by injection molding.

[0067] Among them, plastic injection molding process has advantages such as low cost, high efficiency, lightweight and complex surface processing capability. Using injection molding process to manufacture lampshade 1 can reduce the production cost of lampshade 1 and improve the production efficiency of lampshade 1.

[0068] Based on the same concept, this disclosure also provides a lighting module, such as... Figures 1 to 3 As shown, the lighting module includes the flash assembly 02 and the lampshade assembly 01 provided above, with the lampshade assembly 01 covering the outside of the flash assembly 02.

[0069] Among them, such as Figure 1 As shown, the flashing assembly includes a base 3 and a light-emitting component 4. The base 3 has a mounting groove 31. The light-emitting component 4 includes a first light-emitting element 41 and a second light-emitting element 42. The first light-emitting element 41 and the second light-emitting element 42 are fixed at intervals to the bottom of the mounting groove 31. The first light-emitting element 41 is used to emit blue light, and the second light-emitting element 42 is used to emit infrared light. The mounting groove 31 is filled with phosphor. When the first light-emitting element 41 emits light, the phosphor is excited and emits yellow light. The yellow light and blue light mix to form white light.

[0070] Furthermore, the cross-sectional dimensions of the mounting groove 31 increase as the depth decreases, and the sidewall of the mounting groove 31 has a reflective surface. White light will be reflected multiple times between the first reflective surface and the second reflective surface, thereby spreading the white light to meet the diffusion requirements of the visible light emitted by the flash assembly 02.

[0071] Optionally, the distance between the lampshade assembly 01 and the groove of the mounting slot 31 can be 0.6 mm.

[0072] Based on the same concept, this disclosure also provides an electronic device, which includes the lighting module provided above.

[0073] The electronic device can be, for example, but not limited to, a smartphone or tablet. Taking a smartphone as an example, the lampshade assembly 01 can be fixed to the decorative part of the camera module.

[0074] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this disclosure. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0075] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0076] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0077] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0078] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0079] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A lampshade assembly, characterized in that, The lampshade assembly is used to cover the outside of the flash assembly (02), and the lampshade assembly includes a lampshade (1) and a metasurface structure (2); The metasurface structure (2) is fixed to the lamp cover (1), and the metasurface structure (2) is used to converge the infrared light emitted by the flash assembly (02).

2. The lampshade assembly according to claim 1, characterized in that, The metasurface structure (2) is also used to diffuse the visible light emitted by the flash assembly (02), or the focal length of the metasurface structure (2) for the visible light emitted by the flash assembly (02) is infinite.

3. The lampshade assembly according to claim 1, characterized in that, The metasurface structure (2) is embedded in the lampshade (1).

4. The lampshade assembly according to claim 3, characterized in that, The lampshade (1) encloses the metasurface structure (2).

5. The lampshade assembly according to claim 3, characterized in that, The lampshade (1) has a receiving groove (11) that receives the metasurface structure (2).

6. The lampshade assembly according to claim 1, characterized in that, The metasurface structure (2) is fixed to the surface of the lampshade (1).

7. The lampshade assembly according to claim 6, characterized in that, The metasurface structure (2) is fixedly connected to the surface of the lampshade (1) by optically transparent adhesive.

8. The lampshade assembly according to claim 1, characterized in that, The surface of the lampshade (1) near the flash assembly (02) has Fresnel patterns.

9. The lampshade assembly according to any one of claims 1-8, characterized in that, The lampshade (1) is made of plastic and is formed by injection molding.

10. A lighting module, characterized in that, The lighting module includes a flash assembly (02) and a lampshade assembly as described in any one of claims 1-9, the lampshade assembly being disposed on the outside of the flash assembly (02).

11. An electronic device, characterized in that, The electronic device includes the lighting module as described in claim 10.

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