Lampshade and electronic equipment

Abstract

The lampshade comprises a lampshade body, the lampshade body is provided with a first side face, the first side face is provided with a first optical structure used for transmitting light of an infrared light source, and the first optical structure comprises a center part and a plurality of concentrically-arranged annular protruding edges located on the periphery of the center part; the annular rib comprises a first slope facing the center part and a second slope back to the center part, and the included angle between the first slope and the thickness direction of the cover body is gradually increased in the direction from the center part to the annular rib. According to the lampshade, the emergent angle of the infrared light, transmitted through the first optical structure, of the lampshade body is larger, and a user can use the infrared remote control function more conveniently.

Description

Technical Field

[0001] This application relates to the field of optical technology, and more specifically, to a lampshade and electronic device for transmitting infrared light. Background Technology

[0002] Infrared remote control modules are widely used in electronic devices such as mobile phones for remote control of household appliances such as air conditioners and televisions. Current infrared remote control modules mainly consist of an infrared light source and a light guide column, placed on top of the electronic device. The light emitted by the infrared light source is transmitted through the light guide column and then exits through a light-transmitting hole on the top of the electronic device, enabling infrared remote control when pointed at the household appliance.

[0003] Existing infrared remote control modules are independently mounted on the top of the phone's frame. Because the infrared light transmitted through the light guide column has a small emission angle, users need to point the top of the phone at the household appliance to ensure that the remote control function is effective, which is inconvenient to use. Summary of the Invention

[0004] The purpose of this application is to provide a lampshade and electronic device, wherein a first optical structure is provided on the lampshade, consisting of a central part and a plurality of concentrically arranged annular protrusions, and the inclination angle of the first slope of the annular protrusions gradually increases from the central part to the annular protrusions, so that the infrared light transmitted by the lampshade through the first optical structure has a larger emission angle, making it easier for users to use the infrared remote control function.

[0005] In a first aspect, this application provides a lampshade, which includes a cover body having a first side surface. The first side surface is provided with a first optical structure for transmitting light from an infrared light source. The first optical structure includes a central portion and a plurality of concentrically arranged annular protrusions located on the outer periphery of the central portion. The annular protrusions include a first slope facing the central portion and a second slope facing away from the central portion. From the central portion to the annular protrusions, the angle between the first slope and the thickness direction of the cover body gradually increases.

[0006] The lampshade in this application has a spherical or flat central portion, neither of which excessively weakens the light intensity emitted from the center of the lampshade, maintaining a light-guiding performance essentially equivalent to that of a traditional light guide column. Its advantage over traditional light guide columns lies in the annular convex ridge near the center, which refracts the incident infrared light, causing it to exit at an angle approximately perpendicular to the second side. The annular convex ridge further away from the center performs total internal reflection of the infrared light, resulting in a diffusion effect for the infrared light emitted from the second side. Furthermore, the first slope of the annular convex ridge serves as the primary incident surface. This application features a special design for the first slope: as it moves away from the center and closer to the periphery of the lampshade, the angle between the first slope and the thickness direction of the lampshade gradually increases, forming a gentle slope. This facilitates total internal reflection of the infrared light by the annular convex ridge, resulting in a diffusion effect for the infrared light emitted from the periphery of the lampshade. Consequently, the lampshade can achieve a larger emission angle, resulting in a wider coverage area for the emitted infrared light, making it easier to remotely control household appliances.

[0007] Taking mobile phone infrared remote control of air conditioner as an example, even if the phone is placed horizontally or vertically, the infrared light emitted from the cover has a wider coverage area. As long as the cover (the back of the phone) is roughly facing the air conditioner, there's no need to deliberately adjust the position of the cover relative to the air conditioner. This ensures the infrared light covers the air conditioner's receiver, guaranteeing effective infrared remote control functionality and improving user convenience. Furthermore, compared to traditional methods that require the top of the phone to be pointed at the air conditioner to use infrared remote control, the phone with the cover described in this application can use infrared remote control regardless of whether the phone is placed horizontally or vertically, expanding the range of applications.

[0008] In one possible design, the angle between the second slope and the thickness direction of the cover gradually decreases from the center to the direction of the annular convex ridge.

[0009] When the infrared light source is eccentrically positioned relative to the center, meaning it is not directly aligned with the center, a portion of the infrared light emitted by the source will enter the second slope. This design allows the infrared light entering the second slope to also undergo total internal reflection by the annular convex ridge.

[0010] In one possible design, the angle between the first slope and the thickness direction of the cover is 10° to 60°.

[0011] By limiting the angle range between the first slope and the thickness direction of the cover, this design allows for adjustment of the incident angle and total internal reflection angle of the infrared light, ensuring that the infrared light emitted from the second side has a large angle. Furthermore, when the angle between the first slope and the thickness direction of the cover is within the aforementioned range, the infrared light emitted at a large angle has the radiation intensity required for infrared remote control, thus ensuring the effectiveness of the remote control function.

[0012] In one possible design, the angle between the second slope and the thickness direction of the cover is 5° to 40°.

[0013] The angle between the second slope and the thickness direction is limited. This design allows infrared light entering the annular convex ridge through the second slope to exit at a large angle after total internal reflection, and also has the radiation intensity required for infrared remote control.

[0014] In one possible design, multiple annular protrusions have the same height.

[0015] The uniformly high annular ridges prevent protrusions on the first side, resulting in better consistency in the shape of the cover. This helps to reduce the overall thickness of the cover, making it easier to assemble and use in confined spaces.

[0016] In one possible design, the height of the annular convex ridge is 0.1mm to 0.2mm.

[0017] The height range of the annular convex ridge is limited to ensure that the optical performance of the annular convex ridge can refract and totally internally reflect the incident infrared light, so that the infrared light emitted from the second side can spread out at a large angle to ensure the coverage of the infrared light.

[0018] In one possible design, the distance between two adjacent annular protrusions is 0.1mm to 0.15mm.

[0019] The spacing between two adjacent annular protrusions is limited to ensure the distribution density of the annular protrusions on the first side, thereby ensuring the optical performance of the lampshade. Its ultimate purpose is to enable the infrared light emitted from the second side to spread out at a large angle to ensure the coverage of the infrared light.

[0020] In one possible design, the central part is a concave spherical surface.

[0021] The concave spherical surface has the function of diffusing light. The infrared light that shines on the center is diffused and then emitted from the second side, which enhances the intensity of the light emitted at a large angle. This makes it easier for users to use the infrared function when the lampshade is "out of alignment", thus improving the user's convenience.

[0022] In one possible design, the radius of curvature of the concave sphere is 0.3 mm to 5 mm.

[0023] By limiting the radius of curvature of the concave spherical surface, the intensity of the emitted infrared light after passing through the center can be ensured, avoiding excessive attenuation. Furthermore, when the radius of curvature of the concave spherical surface meets the above-mentioned range, the infrared light refracted through the center can be evenly dispersed, ensuring the same infrared remote control effect for the lampshade in both "aligned" and "misaligned" situations.

[0024] In one possible design, the projection onto the first side is circular in shape, with a diameter of 3mm to 10mm.

[0025] The projection shape and size of the central part are limited to prevent the central part from being too large and thus encroaching on the layout range of the annular convex ridges on the first side. This ensures that there are enough annular convex ridges on the first side to refract and reflect infrared light, so as to guarantee the overall optical performance of the lampshade.

[0026] In one possible design, the first side is also provided with a second optical structure for transmitting light from the flash lamp; the second optical structure is a Fresnel optical structure.

[0027] By integrating the lampshade of the flash and infrared light source into one unit, the lampshade achieves a higher degree of integration, making it more suitable for applications requiring a thinner and smaller design.

[0028] In one possible design, the first side is also provided with a third optical structure for transmitting ambient light, which is a Fresnel optical structure.

[0029] The lampshade of the three components is integrated into one unit, further improving the integration level of the lampshade.

[0030] In one possible design, a boss is provided on the first side, and a first optical structure, a second optical structure and a third optical structure are provided on the boss. The part of the cover located around the boss is a mounting edge, which is used to fix the camera decorative piece.

[0031] The lampshade is fixed to the camera decorative piece by the mounting edge, which is simple in structure and relatively easy to implement.

[0032] In one possible design, the first optical structure, the second optical structure, and the third optical structure are arranged linearly. In the direction of the arrangement of the first optical structure, the second optical structure, and the third optical structure, one end of the boss extends into a positioning block on both sides. The positioning block is used to cooperate with the positioning notch set in the camera decoration to form a foolproof mechanism.

[0033] This positioning block can be used to position the lampshade, reducing the difficulty of lampshade assembly and avoiding errors.

[0034] Secondly, this application also provides an electronic device, including a circuit board, an infrared light source, and a lampshade of any of the above, wherein the circuit board is spaced apart on one side of the lampshade, and the infrared light source is disposed on the circuit board and faces the first optical structure.

[0035] The electronic device in this application includes the aforementioned lampshade. The central portion of the lampshade is either spherical or planar, neither of which excessively weakens the intensity of the light emitted from the center of the lampshade, achieving a light-guiding performance essentially equivalent to that of a traditional light guide column. Its advantage over a traditional light guide column lies in the annular convex ridge near the center, which refracts the incident infrared light, causing it to exit at an angle approximately perpendicular to the second side. The annular convex ridge further away from the center performs total internal reflection of the infrared light, resulting in a diffusion effect for the infrared light emitted from the second side. Furthermore, the first slope of the annular convex ridge serves as the primary incident surface. This application features a special design for the first slope: as it moves away from the center and closer to the periphery of the lampshade, the angle between the first slope and the thickness direction of the lampshade gradually increases, meaning the first slope tends to form a gentle slope. This facilitates total internal reflection of the infrared light by the annular convex ridge, resulting in a diffusion effect for the infrared light emitted from the periphery of the lampshade. This allows the lampshade to achieve a larger emission angle, resulting in a wider coverage area for the infrared light emitted from the lampshade, making it easier to remotely control household appliances. Taking a mobile phone as an example, when using infrared remote control for an air conditioner, whether the phone is placed horizontally or vertically, the infrared light emitted from the cover has a wider coverage area. As long as the cover (the back of the phone) is roughly facing the air conditioner, there's no need to deliberately adjust the position of the cover relative to the air conditioner. This ensures the infrared light covers the air conditioner's receiver, guaranteeing effective infrared remote control and improving user convenience. Furthermore, compared to traditional methods that require the top of the phone to be pointed directly at the air conditioner to use infrared remote control, the phone in this application can be used regardless of whether it's placed horizontally or vertically, expanding the range of applications.

[0036] In one possible design, the device also includes a screen, a mid-frame, and a back cover, with the screen and back cover fixed to opposite sides of the mid-frame, and the cover positioned on the side of the electronic device with the back cover.

[0037] Even if the electronic device is placed horizontally, as long as the back cover of the electronic device is roughly facing the air conditioner, the infrared light can cover the air conditioner's receiver to ensure that the infrared remote control function is effective, thereby improving the user's convenience.

[0038] In one possible design, a camera trim piece is also included, which is fixed to a clearance hole on the back cover, and the cover is fixed to the camera trim piece.

[0039] Because the camera trim has more space inside, it is easier to install the cover onto the camera trim, and the circuit board and infrared light source are also easier to install inside the camera trim.

[0040] In one possible design, a flash and a flicker-proof light sensor are also provided on the circuit board, and the housing is also provided with a second optical structure opposite to the flash and a third optical structure opposite to the flicker-proof light sensor.

[0041] The integration of the infrared light source, flash, and anti-flicker light sensor has been improved, making these three components occupy less space in the overall device.

[0042] In one possible design, the camera decorative piece has a lampshade hole, a boss is provided on the first side of the cover, a first optical structure, a second optical structure and a third optical structure are provided on the boss, the part of the cover around the boss is the mounting edge, the boss passes through the lampshade hole, and the mounting edge is fixed to the camera decorative piece.

[0043] The lampshade is fixed to the camera trim via the mounting edge, resulting in a simple structure that is relatively easy to implement. Furthermore, the mounting edge allows for the determination of the insertion depth of the protrusion within the lampshade hole, thereby determining the relative position of the protrusion to the circuit board. This, in turn, allows for the determination of the relative positions of the first, second, and third optical structures with the infrared light source, flash, and anti-flicker light sensor.

[0044] In one possible design, a limiting groove is provided at the opening of the lampshade hole on the outside of the camera decorative piece, and the mounting edge is fixed in the limiting groove; a light-transmitting cover plate is provided on the outside of the camera decorative piece to cover the cover body.

[0045] The mounting edge is recessed into the limiting groove and does not protrude from the surface of the camera decorative part. This design makes it easy to cover the surface of the camera decorative part with a light-transmitting cover. The light-transmitting cover is used to protect the lens of the camera module and also to protect the lampshade.

[0046] In one possible design, the first optical structure, the second optical structure, and the third optical structure are arranged linearly. In the direction of the arrangement of the first optical structure, the second optical structure, and the third optical structure, one end of the boss extends into positioning blocks on both sides; the wall of the lampshade hole is provided with a positioning notch, and the positioning block is located in the positioning notch.

[0047] The positioning block and positioning notch form a foolproof mechanism, which allows the orientation of the lampshade to be quickly determined during the assembly process of the lampshade and camera decorative parts.

[0048] In one possible design, the distance between the first optical structure and the infrared light source is 0.1 mm to 1 mm.

[0049] Within this distance range, the angle of the light entering the first side can be adjusted, thereby adjusting the incident angle of the infrared light onto the annular convex ridge, thus allowing the optical performance of the annular convex ridge to be fully utilized. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a mobile phone in related technologies;

[0051] Figure 2 yes Figure 1 A partial cross-sectional view of the mobile phone in the image;

[0052] Figure 3 This is a schematic diagram of a mobile phone provided in an embodiment of this application;

[0053] Figure 4 This is an exploded view of the mobile phone provided in the embodiments of this application;

[0054] Figure 5 yes Figure 3 Sectional view of AA;

[0055] Figure 6 This is a schematic diagram of the camera decorative component provided in an embodiment of this application;

[0056] Figure 7 This is a schematic diagram of the lampshade provided in an embodiment of this application;

[0057] Figure 8 This is an exploded view of the back cover, camera trim, and lampshade provided in the embodiments of this application;

[0058] Figure 9 yes Figure 7 A cross-sectional view of an example of BB;

[0059] Figure 10 yes Figure 9 Enlarged view of point C in the middle;

[0060] Figure 11 This is a partial cross-sectional view of another example of the lampshade provided in the embodiments of this application;

[0061] Figure 12 This is a schematic diagram illustrating the working principle of an example lampshade provided in this application embodiment;

[0062] Figure 13 This is a schematic diagram illustrating the working principle of another lampshade provided in this application embodiment;

[0063] Figure 14 This is a schematic diagram illustrating the working principle of another lampshade provided in this application embodiment;

[0064] Figure 15 This is a schematic diagram of a mobile phone remotely controlling an air conditioner from an external location, as provided in an embodiment of this application.

[0065] Figure 16 This is a schematic diagram of an example of the lampshade and circuit board provided in an embodiment of this application;

[0066] Figure 17This is a schematic diagram of another example of the lampshade and circuit board provided in the embodiments of this application;

[0067] Figure 18 This is a schematic diagram of another example of the lampshade and circuit board provided in the embodiments of this application;

[0068] Figure 19 This is a schematic diagram of another example of the lampshade and circuit board provided in the embodiments of this application;

[0069] Figure 20 This is a partial cross-sectional view of the lampshade provided in an embodiment of this application;

[0070] Figure 21 This is a partial schematic diagram of the lampshade provided in an embodiment of this application;

[0071] Figure 22 This is a schematic diagram of the lampshade and infrared light source provided in this application.

[0072] Figure 23 This is an optical simulation diagram of the lampshade in Example 1;

[0073] Figure 24 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 1;

[0074] Figure 25 It is an optical simulation diagram of a light guide column in related technologies;

[0075] Figure 26 This is a schematic diagram of the optical path of infrared light after passing through the light guide column in the related technology;

[0076] Figure 27 This is an optical simulation diagram of the lampshade in Example 2;

[0077] Figure 28 This is a schematic diagram of the light path after infrared light passes through the lampshade of Embodiment 2;

[0078] Figure 29 This is an optical simulation diagram of the lampshade in Example 3;

[0079] Figure 30 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 3;

[0080] Figure 31 This is an optical simulation diagram of the lampshade in Example 4;

[0081] Figure 32 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 4;

[0082] Figure 33 This is an optical simulation diagram of the lampshade in Example 5;

[0083] Figure 34This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 5.

[0084] Figure label:

[0085] 01. Mid-frame; 02. Light guide column; 03. Infrared light source;

[0086] 10. First side view;

[0087] 20. Second side view;

[0088] 31. First optical structure; 311. Central part; 312. Annular convex ridge; 312a. First slope; 312b. Second slope; 32. Second optical structure; 33. Third optical structure; 34. Fourth optical structure;

[0089] 40. Boss; 41. Positioning block;

[0090] 50. Install the edge;

[0091] 100. Cover;

[0092] 200. Housing; 201. Mid-frame; 202. Rear cover; 203. Clearance hole;

[0093] 300. Screen;

[0094] 400. Circuit board; 401. Infrared light source; 402. Flash lamp; 403. Anti-flicker light sensor; 404. Laser;

[0095] 500. Camera decorative piece; 501. Light-transmitting cover plate; 502. Lens hole; 503. Lampshade hole; 504. Limiting groove; 505. Positioning notch;

[0096] 600. Camera module;

[0097] 700, Air conditioner; 701, Receiver. Detailed Implementation

[0098] The following are exemplary descriptions of relevant content that may be involved in the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0099] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0100] In the description of this application, it should be understood that the terms "upper", "lower", "side", "inner", "outer", "top", "bottom", etc., indicate the orientation or positional relationship based on the installation orientation or positional relationship, and are only for the convenience of describing this application and simplifying the description, and 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 of this application.

[0101] It should also be noted that in the embodiments of this application, the same reference numerals are used to represent the same component or part. For the same part in the embodiments of this application, the reference numerals may only be used to mark one part or part as an example in the figure. It should be understood that the reference numerals are also applicable to other identical parts or parts.

[0102] In the description of this application, it should be noted that the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0103] Infrared remote control technology is a wireless control technology that transmits data via infrared light. In the infrared remote control function of electronic devices, an infrared light source converts the signals on the electronic device into infrared light signals and sends them out. Infrared receivers on household appliances such as air conditioners and televisions receive these signals and convert them into corresponding operating commands. This technology is characterized by short transmission distance, low power consumption, low cost, and ease of implementation. Furthermore, because infrared light has a short wavelength and poor diffraction ability towards obstacles, it is more suitable for short-range linear control scenarios.

[0104] An infrared remote control module is the hardware that enables infrared remote control functionality in electronic devices. In related technologies, an infrared remote control module mainly consists of an infrared light source and a light guide column. The light guide column is located on the top of the electronic device. The light emitted by the infrared light source is transmitted through the light guide column and then exits through a light-transmitting hole on the top of the electronic device, enabling infrared remote control when pointed at household appliances.

[0105] Taking the infrared remote control module in a mobile phone as an example, Figure 1This is a schematic diagram of a mobile phone in related technologies. Figure 2 yes Figure 1 A partial cross-sectional view of the mobile phone. (See image.) Figures 1-2 As shown, in related technologies, the light guide column 02 and the infrared light source 03 are usually independently set at the top of the mobile phone frame 01, that is, the end of the mobile phone with the earpiece. When the user uses the infrared remote control module, he or she points the top of the mobile phone frame 01 at the home appliance and operates the control software in the mobile phone to drive the infrared light source 03 to emit light. The infrared light passes through the light guide column 02 and is emitted and shines on the home appliance to realize infrared remote control of the home appliance.

[0106] It is evident that existing infrared remote control modules have a drawback: the infrared light transmitted through the light guide post 02 has a small emission angle, requiring the user to point the top of their mobile phone at the household appliance to ensure the remote control function is effective. Therefore, they are inconvenient to use.

[0107] In view of this, in order to solve the above-mentioned technical problems, this application provides a lampshade and an electronic device, wherein a first optical structure is provided on the lampshade, which is composed of a central part and a plurality of concentrically arranged annular protrusions, and the inclination angle of the first slope of the annular protrusions gradually increases from the central part to the annular protrusions, so that the infrared light transmitted by the lampshade through the first optical structure has a larger emission angle, making it easier for users to use the infrared remote control function.

[0108] This application first provides an electronic device, which may also be referred to as a mobile device, terminal device, mobile terminal, or terminal. This electronic device includes, but is not limited to, handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem. For example, the electronic device may include smartwatches, smart bracelets, mobile phones, personal digital assistant computers, tablet computers, laptops, in-vehicle computers, smart glasses, handheld game consoles, and other electronic devices with conductive springs that require reliable electrical connection design under low compressive pressure.

[0109] To more conveniently illustrate the electronic device provided in the embodiments of this application, and as an example rather than a limitation, the technical solution of this application will be described in detail below using a mobile phone as an example. Meanwhile, for the convenience of the description of the embodiments below, an XYZ coordinate system is established for the mobile phone. Specifically, the extension direction of the short side of the mobile phone is defined as the X direction, the extension direction of the long side of the mobile phone is defined as the Y direction, and the thickness direction of the mobile phone is defined as the Z direction, and the X, Y, and Z directions are all perpendicular to each other.

[0110] Figure 3 This is a schematic diagram of a mobile phone provided in an embodiment of this application. Wherein, Figure 3 (a) in the image is a front view of the phone; Figure 3 (b) in the image is a schematic diagram of the back of the phone.

[0111] like Figure 3 As shown, the mobile phone provided in this embodiment includes a screen 300 and a housing 200. The housing 200 further includes a mid-frame 201 and a back cover 202 (or battery cover). The screen 300 is fixedly mounted on the front end of the mid-frame 201, and the back cover 202 is fixedly mounted on the rear end of the mid-frame 201. The screen 300, mid-frame 201, and back cover 202 together define the accommodating space of the mobile phone, which is used to install various functional components of the mobile phone, such as the flash 402, infrared light source 401, camera module 600, circuit board 400, and other functional components mentioned later.

[0112] Figure 4 This is an exploded view of the mobile phone provided in an embodiment of this application. Figure 4 As shown, the mid-frame 201 can be made of metal or plastic, and includes a mid-plate and a border surrounding the mid-plate. The screen 300 and the back cover 202 can be attached to the border by snap-fitting, adhesive bonding, or other methods. Sealing rings can be provided between the screen 300 and the border, and between the back cover 202 and the border, to improve the sealing and waterproofing effect at the joints of the screen 300 and the border, and the back cover 202 and the border. These sealing rings can be made of highly elastic materials such as silicone or rubber.

[0113] In addition, the mobile phone may also include functional components such as a processor, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, a microphone, a mobile communication module, an antenna, a wireless communication module, an audio module, a headphone jack, a sensor module, buttons, and a subscriber identification module (SIM) card interface. These functional components can be modified according to user needs. It is understood that the specific embodiments described above are merely one specific implementation of this application, and other ways to implement the solution of this application are also within the scope of protection of this application, and will not be elaborated upon here.

[0114] The following is a detailed description of the technical solutions for the mobile phone and the lampshade used in the embodiments of this application.

[0115] Figure 5 yes Figure 3 A sectional view of AA. (e.g.) Figure 5 As shown, and combined with Figure 4 As shown in the embodiment of this application, the mobile phone includes, in addition to the screen 300 and the casing 200 described above, a camera module 600, a camera decorative piece 500, a circuit board 400, an infrared light source 401, a flash 402, an anti-flicker light sensor 403, a lampshade, etc.

[0116] The rear cover 202 has a clearance hole 203. The camera decorative piece 500 has a shell-like structure, and its open end cap is located at the clearance hole 203 of the rear cover 202. This allows the rear cover 202, the camera decorative piece 500, and the middle frame 201 to enclose a space for accommodating components. The camera module 600, circuit board 400, infrared light source 401, flash 402, and anti-flicker light sensor 403 are all located within this space. The camera decorative piece 500 has a lens hole 502 and a lampshade hole 503. The lens of the camera module 600 is retractably mounted in the lens hole 502. The lampshade cover 100 is installed in the lampshade hole 503. The circuit board 400 is spaced apart on one side of the cover 100. The infrared light source 401, flash 402, and anti-flicker light sensor 403 are mounted on the circuit board 400 and face the cover 100.

[0117] The infrared light source 401 is the hardware for enabling infrared remote control functionality in the mobile phone. The flash 402 is the hardware for providing supplementary lighting when taking photos and videos, and can also be used as a lighting lamp. The anti-flicker light sensor 403 is a sensor used to automatically adjust the brightness and color temperature of the screen 300. It can detect the intensity and color temperature of ambient light and adjust the brightness and color temperature of the mobile phone screen 300 based on this information to provide a more comfortable and natural visual experience. In addition, when detecting the color temperature of ambient light, the anti-flicker light sensor 403 can also assist the automatic white balance (AWB) algorithm during photography, adjusting the color and color temperature of the captured photos or videos accordingly to improve the white balance effect and make the display of photos or videos more natural and realistic.

[0118] Figure 7 This is a schematic diagram of the lampshade provided in an embodiment of this application. Figure 7 As shown, the lampshade includes a cover body 100, which has a first side surface 10 and a second side surface 20, which are arranged opposite to each other on the cover body 100. The first side surface 10 and the second side surface 20 can serve as both the light-incident surface and the light-emitting surface of the lampshade. For example, when the lampshade is used with an infrared light source 401 and a flash lamp 402, the first side surface 10 serves as the light-incident surface of the lampshade, and the second side surface 20 serves as the light-emitting surface of the lampshade; when the lampshade is used with an anti-flicker light sensor 403, the second side surface 20 serves as the light-incident surface of the lampshade, and the first side surface 10 serves as the light-emitting surface of the lampshade.

[0119] Multiple optical structures can be integrated and set on the first side 10. There are several ways to form multiple optical structures on the cover 100. For example, multiple optical structures can be engraved on the cover 100 blank, specifically by laser micro-engraving technology; or, they can be formed by injection molding, specifically by pre-processing a mold with mirrored optical structures, injecting molten liquid base material into the mold, and obtaining the cover 100 with multiple optical structures after solidification and demolding; or, the cover 100 with multiple optical structures can be directly formed by 3D printing technology.

[0120] The multiple optical structures include a first optical structure 31, a second optical structure 32, and a third optical structure 33. Among them, such as... Figure 5 As shown and combined Figure 7 As shown, the first optical structure 31 of the cover 100 is opposite to the infrared light source 401 and is used to transmit the light emitted by the infrared light source 401. The light from the infrared light source 401 is incident from the first side 10 of the cover 100, transmitted through the first optical structure 31, and exited from the second side 20 for infrared remote control of household appliances. The second optical structure 32 of the cover 100 is opposite to the flash lamp 402 and is used to transmit the light emitted by the flash lamp 402. The light from the flash lamp 402 is incident from the first side 10 of the cover 100, transmitted through the second optical structure 32, and exited from the second side 20 for supplementary lighting or illumination during photography. The third optical structure 33 of the cover 100 is opposite to the anti-flicker light sensor 403. Ambient light is incident from the second side 20 of the cover 100, transmitted through the third optical structure 33, and then directed to the anti-flicker light sensor 403 to sense factors such as color difference in ambient light, thereby automatically adjusting the brightness and color temperature of the screen 300 and also assisting in the photography function.

[0121] As can be seen, the lampshade in this embodiment integrates multiple optical structures on the first side 10 of the lampshade, giving it a "multi-purpose" effect. Specifically, the lampshade in this embodiment can serve as the lampshade for the infrared light source 401, as well as for the flash lamp 402 and the anti-flicker light sensor 403. Thus, compared to the independently designed light guide column 02 and flash lamp lampshade in related technologies, the lampshade in this embodiment has a higher degree of integration, making it more suitable for applications requiring thinness and miniaturization. Furthermore, by integrating the lampshade of the three components into one unit, compared to the separate installation of the light guide column 02 and flash lamp lampshade in related technologies, the lampshade in this embodiment can reduce the assembly process of the entire mobile phone, thereby improving the manufacturing efficiency of the mobile phone. Additionally, since only the lampshade needs to be installed, designing and manufacturing the mounting structure for fixing the lampshade on the support part of the mobile phone is relatively easy, thus reducing the manufacturing difficulty and cost of the mobile phone.

[0122] Figure 9 yes Figure 7 A cross-sectional view of an example of BB. (e.g.) Figure 9 As shown in the embodiment of this application, the lampshade has a first optical structure 31 including a central portion 311 and a plurality of concentrically arranged annular protrusions 312 located on the outer periphery of the central portion 311. Each annular protrusion 312 includes a first slope 312a facing the central portion 311 and a second slope 312b facing away from the central portion 311. From the central portion 311 to the annular protrusion 312, the angle between the first slope 312a and the thickness direction of the lampshade 100 gradually increases. The direction from the central portion 311 to the annular protrusion 312 can be understood as... Figure 9 The V direction in the figure refers to the direction from the center to the periphery; the 100mm thickness direction of the cover can be understood as... Figure 9 The Z direction in the equation.

[0123] The angle between the first slope 312a and the thickness direction of the cover 100 gradually increases. Specifically, there are two implementation methods for this gradual increase: one is that the angle between the first slope 312a and the thickness direction of the cover 100 increases sequentially among the multiple annular protrusions 312; the other is that the multiple annular protrusions 312 are divided into several groups, where the angle between the first slope 312a of each group and the thickness direction of the cover 100 is equal, and the angle between groups gradually increases. Examples will be given below with reference to the accompanying drawings. It should be noted that these examples are for illustrative purposes only and not limiting.

[0124] First, we will introduce the first implementation method. Figure 10 yes Figure 9 Enlarged view of point C, as shown Figure 10 As shown in the figure, there are three annular protrusions 312. From the center 311 to the annular protrusions 312, the angles between the three first slopes 312a and the thickness direction are a1, a2, and a3, respectively, and the degree relationship between the three is a1 < a2 < a3.

[0125] Then, the second implementation method will be introduced. Figure 11 This is a partial cross-sectional view of another example of the lampshade provided in the embodiments of this application, such as... Figure 11 As shown in the figure, there are several annular protrusions 312, which are divided into three groups. Each group has two annular protrusions 312. From the center 311 to the annular protrusions 312, the angles between the first slope surface 312a of the three groups of annular protrusions 312 and the thickness direction are a1, a2, a3, a4, a5, and a6, respectively. The degree relationship between the six is ​​a1 = a2 < a3 = a4 < a5 = a6.

[0126] Figure 12 This is a schematic diagram illustrating the working principle of an example lampshade provided in an embodiment of this application. For example... Figure 12As shown, taking the central portion 311 as a convex spherical surface as an example, the outer periphery of the central portion 311 has multiple concentrically arranged annular convex ridges 312. Infrared light emitted by the infrared light source 401 is incident from the first side 10 of the cover 100. Since the convex spherical surface has the function of converging light, the infrared light illuminating the central portion 311 is converged to the center and then emitted from the second side 20, so that the intensity of the emitted light from the central portion 311 of the cover 100 is basically the same as the light guiding performance of the conventional light guide post 02. The annular convex ridges 312 located near the central portion 311 refract the incident infrared light so that the infrared light is emitted at an angle approximately perpendicular to the second side 20. The annular convex ridges 312 far from the central portion 311 perform total internal reflection (TIR) ​​of the infrared light, so that the infrared light emitted from the second side 20 exhibits a diffusion effect. Furthermore, the first slope 312a of the annular convex ridge 312 serves as the main incident surface. In this embodiment, the first slope 312a is specially designed: as it moves away from the center 311 and closer to the periphery of the cover 100, the angle between the first slope 312a and the thickness direction of the cover 100 gradually increases, that is, the first slope 312a tends to form a gentle slope. This is more conducive to the total internal reflection of infrared light by the annular convex ridge 312, thereby causing the infrared light emitted from the periphery of the cover 100 to have a diffusion effect, and thus enabling the lamp cover to form a larger emission angle.

[0127] Figure 13 This is a schematic diagram illustrating the working principle of another lampshade provided in an embodiment of this application. For example... Figure 13 As shown, taking the concave spherical shape of the central portion 311 as an example, the outer periphery of the central portion 311 has multiple concentrically arranged annular protrusions 312. The infrared light emitted by the infrared light source 401 is incident from the first side 10 of the cover 100. The concave spherical surface has the function of diverging light. By adjusting the radius of curvature of the concave spherical surface, the infrared light illuminating the central portion 311 will only be slightly diverged, without excessively weakening the intensity of the emitted light from the cover 100 at the central portion 311. Furthermore, after the infrared light illuminating the central portion 311 is diverged, it is emitted from the second side 20, enhancing the intensity of the large-angle emitted light. This makes it easier for users to use the infrared function when the lamp cover is "out of alignment," thereby improving the user's convenience. Furthermore, similar to the above embodiments, the angle between the first slope 312a and the thickness direction of the cover 100 gradually increases, that is, the first slope 312a tends to form a gentle slope, which is more conducive to the total internal reflection of infrared light by the annular convex ridge 312, so that the infrared light emitted from the periphery of the cover 100 has a diffusion effect, thereby enabling the lamp cover to form a larger emission angle.

[0128] Figure 14 This is a schematic diagram illustrating the working principle of another lampshade provided in an embodiment of this application. For example... Figure 14 As shown, taking the central portion 311 as a planar surface as an example, the outer periphery of the central portion 311 has multiple concentrically arranged annular protrusions 312. Infrared light emitted by the infrared light source 401 is incident from the first side 10 of the cover 100. Since the planar surface neither converges nor diverges light, the infrared light illuminating the central portion 311 is not significantly affected and will not weaken the intensity of the emitted light from the cover 100 at the central portion 311. Furthermore, similar to the above embodiment, the angle between the first slope 312a and the thickness direction of the cover 100 gradually increases, which is more conducive to the total internal reflection of infrared light by the annular protrusions 312.

[0129] In summary, regardless of whether the central part 311 is a convex spherical surface, a concave spherical surface, or a plane, it will not excessively weaken the intensity of the emitted light from the central part 311 of the cover 100. The light guiding performance is basically the same as that of the traditional light guide post 02. The advantage of the central part 311 compared to the traditional light guide post 02 is that the outer periphery of the central part 311 has multiple concentrically arranged annular convex ridges 312. The annular convex ridges 312 can refract and totally internally reflect the incident infrared light, thereby making the infrared light emitted from the periphery of the cover 100 diffuse. This increases the emission angle of the infrared light, making the coverage of the infrared light emitted from the lamp cover larger and making it easier to remotely control home appliances.

[0130] Taking the 700 model of air conditioner remotely controlled by mobile phone infrared as an example, Figure 15 This is a schematic diagram of a mobile phone remotely controlling an air conditioner 700, as provided in an embodiment of this application. Figure 15 (a) in the diagram is a schematic of the phone when it is placed horizontally. Figure 15 (b) in the diagram shows the phone when placed vertically. Figure 15 As shown, the mobile phone uses any of the aforementioned lampshades. Whether the phone is placed horizontally or vertically, the infrared light emitted from the lampshade 100 has a wider coverage area. As long as the lampshade 100 on the back of the phone is roughly facing the air conditioner 700, there is no need to deliberately adjust the position of the lampshade 100 and the air conditioner 700 to ensure that the infrared light covers the receiver 701 of the air conditioner 700, thus ensuring the infrared remote control function is effective and improving user convenience. Furthermore, compared to the traditional method where the user needs to point the top of the phone at the air conditioner 700 to use the infrared remote control function, the mobile phone using the lampshade of this application can use the infrared remote control function whether the phone is placed horizontally or vertically, making the usage scenarios more diverse.

[0131] The second optical structure 32 may differ from the first optical structure 31. For example, the second optical structure 32 may be a spherical or aspherical surface as a whole, or... Figure 7As shown, the second optical structure 32 is a Fresnel optical structure. Similarly, the third optical structure 33 can differ from the first optical structure 31; for example, the third optical structure 33 may be a spherical or aspherical surface, or something else entirely. Figure 7 As shown, the third optical structure 33 is also a Fresnel optical structure.

[0132] The materials used in this application to manufacture the cover 100 include, but are not limited to, polyethylene terephthalate (PET), polycarbonate (PC), triacetyl cellulose (TAC), polymethyl methacrylate (PMMA), methyl methacrylate-styrene copolymer, polystyrene (PS), or cycloolefin copolymer (COC).

[0133] As mentioned earlier, the cover 100 can be installed in the lampshade hole 503 of the camera decorative part 500. The specific technical solution is as follows.

[0134] Figure 6 This is a schematic diagram of the camera decorative component 500 provided in an embodiment of this application. Figure 6 and recombination Figure 5 and Figure 7 As shown, in one embodiment provided in this application, the camera decorative piece 500 has a lampshade hole 503, the first side 10 of the cover 100 is provided with a boss 40, the first optical structure 31, the second optical structure 32 and the third optical structure 33 are provided on the boss 40, the part of the cover 100 located around the boss 40 is the mounting edge 50, on the outside of the camera decorative piece 500, a limiting groove 504 is provided at the opening of the lampshade hole 503, the mounting edge 50 is fixed in the limiting groove 504, the boss 40 passes through the lampshade hole 503, and a light-transmitting cover plate 501 covering the cover 100 is provided on the outside of the camera decorative piece 500.

[0135] In this embodiment, the mounting edge 50 of the cover 100 is fixed in the limiting groove 504 by means of adhesive bonding, snap-fitting, etc. This not only allows the cover 100 to be fixedly installed together with the camera decorative part 500, but also ensures that the mounting edge 50 is recessed into the limiting groove 504 and does not protrude from the surface of the camera decorative part 500. This design facilitates the installation of a light-transmitting cover plate 501 on the surface of the camera decorative part 500. The light-transmitting cover plate 501 is used to protect the lens of the camera module 600 and also to protect the cover 100. In addition, the insertion depth of the boss 40 in the lampshade hole 503 can be determined by the mounting edge 50 and the bottom wall of the limiting groove 504, thereby determining the relative position of the boss 40 and the circuit board 400. This allows for the determination of the relative positions of the first optical structure 31, the second optical structure 32, the third optical structure 33, etc., with the infrared light source 401, the flash lamp 402, and the anti-flicker light sensor 403.

[0136] In another embodiment provided in this application, the limiting groove 504 may not be provided at the opening of the lampshade hole 503, the boss 40 passes through the lampshade hole 503, and the mounting edge 50 is directly fixed to the camera decorative piece 500.

[0137] Continue as Figures 6-7 As shown, in one embodiment provided in this application, the first optical structure 31, the second optical structure 32, and the third optical structure 33 are arranged linearly. In the arrangement direction of the first optical structure 31, the second optical structure 32, and the third optical structure 33, one end of the boss 40 extends to both sides to form a positioning block 41. The wall of the lampshade hole 503 is also provided with a positioning notch 505. The positioning block 41 and the positioning notch 505 cooperate to form a foolproof mechanism. When the cover 100 and the camera decorative part 500 are assembled, the positioning block 41 is located in the positioning notch 505.

[0138] First, it's important to understand that mistake-proofing mechanisms, also known as error-proofing designs or fault-proofing, are a type of behavioral constraint that prevents and corrects errors. By restricting methods, they prevent mistakes from occurring, allowing operators to complete operations accurately based solely on intuition without needing to spend too much attention or rely on experience and professional knowledge.

[0139] In this embodiment, positioning blocks 41 are provided on both sides of the boss 40, and positioning notches 505 are provided at the corresponding positions of the camera decorative part 500. The positioning blocks 41 and positioning notches 505 actually form a foolproof mechanism. In this way, when assembling the cover 100 and the camera decorative part 500, the orientation of the cover 100 can be quickly determined, so that the first optical structure 31 and the infrared light source 401, the second optical structure 32 and the flash lamp 402, and the third optical structure 33 and the anti-flicker light sensor 403 can be accurately aligned, thereby improving the efficiency of the assembly process.

[0140] Without a foolproof mechanism, during the assembly process of the housing 100 and the camera decoration 500, the operator may fix the housing 100 and the camera decoration 500 in the wrong orientation, causing the first optical structure 31 to align with the anti-flicker light sensor 403 and the third optical structure 33 to align with the infrared light source 401; or, too much attention may be required to judge the matching of the optical structure and the components, thus affecting the efficiency of the assembly process.

[0141] In another embodiment provided in this application, when the mobile phone does not have a camera trim 500, or when the size of the camera trim 500 is too small to be installed on the cover 100, for example, Figure 8 This is an exploded view of the back cover 202, camera decorative part 500, and lampshade provided in the embodiments of this application, as shown below. Figure 8 As shown and combined Figure 7 As shown, the cover 100 can be directly fixed to the back cover 202. The specific implementation method is similar to the installation and fixing scheme of the cover 100 and the camera decoration 500. The lampshade hole 503, the limiting groove 504, the positioning notch 505, etc. are set on the back cover 202 near the avoidance hole 203, so that the cover 100 is close to the camera decoration 500 after assembly. The mounting edge 50 of the cover 100 is fixed in the limiting groove 504, the boss 40 passes through the lampshade hole 503, and the positioning block 41 is located in the positioning notch 505.

[0142] Figure 7 In the embodiments shown, the cover 100 has three sets of optical structures: a first optical structure 31, a second optical structure 32, and a third optical structure 33. In other embodiments, the cover 100 may have only one set of optical structures, or the cover 100 may have two, four, or even more sets of optical structures. Specific embodiments are as follows.

[0143] Figure 16 This is a schematic diagram of an example of the lampshade and circuit board 400 provided in an embodiment of this application. Wherein, Figure 16 (a) is a top view of the first side 10 of the cover 100; Figure 16 (b) is a top view of the side of the circuit board 400 facing the first side 10. For example... Figure 16 As shown, in one embodiment provided in this application, the first side 10 of the cover 100 has a set of optical structures, namely the first optical structure 31, and the circuit board 400 is provided with an infrared light source 401. After the cover 100 and the circuit board 400 are spaced apart, the first optical structure 31 of the cover 100 is opposite to the infrared light source 401.

[0144] Figure 17 This is a schematic diagram of another example of the lampshade and circuit board 400 provided in the embodiments of this application. Wherein, Figure 17(a) is a top view of the first side 10 of the cover 100; Figure 17 (b) is a top view of the side of the circuit board 400 facing the first side 10. For example... Figure 17 As shown, in one embodiment provided in this application, the first side 10 of the cover 100 has two sets of optical structures, namely a first optical structure 31 and a second optical structure 32 arranged side by side, and the circuit board 400 is provided with an infrared light source 401 and a flash lamp 402. After the cover 100 and the circuit board 400 are spaced apart, the first optical structure 31 of the cover 100 is opposite to the infrared light source 401, and the second optical structure 32 of the cover 100 is opposite to the flash lamp 402.

[0145] In some other embodiments provided in this application, when the first side 10 of the cover 100 has two sets of optical structures, any two of the four optical structures 31, 32, 33 and 34 can be arranged and combined. For example, it can be the first optical structure 31 and the third optical structure 33; or it can be the first optical structure 31 and the fourth optical structure 34.

[0146] In other embodiments provided in this application, when the first side 10 of the cover 100 has three sets of optical structures, any three of the first optical structure 31, the second optical structure 32, the third optical structure 33 and the fourth optical structure 34 can be arranged and combined. For example, it can be the first optical structure 31, the third optical structure 33 and the fourth optical structure 34.

[0147] Figure 18 This is a schematic diagram of another example of the lampshade and circuit board 400 provided in the embodiments of this application. Wherein, Figure 18 (a) is a top view of the first side 10 of the cover 100; Figure 18 (b) is a top view of the side of the circuit board 400 facing the first side 10. For example... Figure 18 As shown, in one embodiment provided in this application, the first side 10 of the cover 100 has four sets of optical structures, namely a first optical structure 31, a second optical structure 32, a third optical structure 33, and a fourth optical structure 34 arranged in an array. The circuit board 400 is provided with an infrared light source 401, a flash lamp 402, an anti-flicker light sensor 403, and a laser 404. After the cover 100 and the circuit board 400 are spaced apart, the first optical structure 31 of the cover 100 is opposite to the infrared light source 401, the second optical structure 32 is opposite to the flash lamp 402, the third optical structure 33 is opposite to the anti-flicker light sensor 403, and the fourth optical structure 34 is opposite to the laser 404.

[0148] The fourth optical structure 34 may be different from the first optical structure 31. For example, the fourth optical structure 34 may be a spherical or aspherical surface, or a Fresnel optical structure.

[0149] Laser 404 can be a facial recognition laser, a proximity-sensing laser, a laser projector, etc. Among them, the facial recognition laser is mainly used for the facial recognition function of mobile phones. By illuminating the face with a laser, it calculates the depth and contour of the face, thereby achieving more accurate facial recognition. The proximity-sensing laser is used for the automatic brightness adjustment function of mobile phones. By measuring the distance between the phone and an object, it automatically adjusts the brightness of the screen 300 and the backlight to achieve a better viewing experience. The laser projector can project the content on the mobile phone screen 300 onto a wall or screen, achieving a larger display effect.

[0150] In other embodiments provided in this application, the first side 10 of the cover 100 is further provided with a fifth optical structure for transmitting test light emitted by the heart rate sensor; the first side 10 of the cover 100 is further provided with a sixth optical structure for transmitting light emitted by other modules. This application does not limit the number of optical structures on the first side 10 of the cover 100.

[0151] In one embodiment provided in this application, multiple sets of optical structures are arranged linearly. For example, as... Figure 7 As shown, the first optical structure 31, the second optical structure 32, and the third optical structure 33 are arranged linearly along the X direction on the cover 100. Correspondingly, the infrared light source 401, the flash lamp 402, and the anti-flicker light sensor 403 are also arranged linearly on the circuit board 400.

[0152] Figure 19 This is a schematic diagram of another example of the lampshade and circuit board 400 provided in the embodiments of this application. Wherein, Figure 19 (a) is a top view of the first side 10 of the cover 100; Figure 19 (b) is a top view of the side of the circuit board 400 facing the first side 10. For example... Figure 19 As shown, in another embodiment provided in this application, the first optical structure 31, the second optical structure 32, and the third optical structure 33 are arranged in a triangular pattern on the cover 100. Correspondingly, the infrared light source 401, the flash lamp 402, and the anti-flicker light sensor 403 are also arranged in a triangular pattern on the circuit board 400.

[0153] In one embodiment provided in this application, multiple sets of optical structures are arranged in an array. For example, such as Figure 18As shown, the first optical structure 31, the second optical structure 32, the third optical structure 33, and the fourth optical structure 34 are arranged in an array on the cover 100. Correspondingly, the infrared light source 401, the flash lamp 402, the anti-flicker light sensor 403, and the laser 404 are also arranged in an array on the circuit board 400.

[0154] It should be noted that, regardless of any changes in the number or arrangement of the optical structures on the cover 100, the installation and fixing scheme described in the aforementioned embodiments can be used between the cover 100 and the camera decorative piece 500, or between the cover 100 and the back cover 202.

[0155] The preceding text focused on the optical structure layout of the cover 100 and its assembly method on the mobile phone. The following text will focus on a detailed description of the first optical structure 31 on the cover 100 used for transmitting infrared light.

[0156] Return to Figure 9 As shown, in some embodiments provided in this application, the angle between the first slope 312a and the thickness direction of the cover 100 is 10° to 60°.

[0157] In this embodiment, the angle range between the first slope 312a and the thickness direction of the cover 100 is limited. This design allows for adjustment of the incident angle and total internal reflection angle of the infrared light, ensuring that the infrared light emitted from the second side 20 has a large angle. Furthermore, when the angle between the first slope 312a and the thickness direction of the cover 100 is within the aforementioned angle range, the infrared light emitted at a large angle has the radiation intensity required for infrared remote control, thereby ensuring the effectiveness of the remote control function.

[0158] As mentioned earlier, the first slope 312a of the annular convex ridge 312 serves as the primary incident surface and is specially designed to facilitate total internal reflection of infrared light. However, in certain special scenarios, the second slope 312b of the annular convex ridge 312 may also serve as the incident surface. For example, when the infrared light source 401 is eccentrically positioned relative to the center 311 (i.e., the infrared light source 401 is not directly facing the center 311), a portion of the infrared light generated by the infrared light source 401 will enter the second slope 312b. To ensure that the infrared light entering the second slope 312b can also be totally internally reflected by the annular convex ridge 312, the second slope 312b also requires special design, as detailed below.

[0159] Continue as Figure 9 As shown, in some embodiments provided in this application, the angle between the second slope 312b and the thickness direction of the cover 100 gradually decreases from the center portion 311 to the annular ridge 312.

[0160] The angle between the second slope 312b and the thickness direction of the cover 100 gradually decreases. There are two specific implementation methods for this gradual decrease. Examples will be given below with reference to the accompanying drawings. It should be noted that these examples are only for illustrative purposes and not for limitation.

[0161] First, we will introduce the first implementation method. For example... Figure 10 As shown in the figure, there are three annular protrusions 312. From the center 311 to the annular protrusions 312, the angles between the three second slopes 312b and the thickness direction are b1, b2, and b3 respectively, and the degree relationship among the three is b1 > b2 > b3.

[0162] Then, the second implementation method will be introduced. For example... Figure 11 As shown in the figure, there are several annular protrusions 312, which are divided into three groups. Each group has two annular protrusions 312. From the center 311 to the annular protrusions 312, the angles between the second slope surface 312b of the three groups of annular protrusions 312 and the thickness direction are b1, b2, b3, b4, b5, and b6, respectively. The degree relationship between the six is ​​b1 = b2 > b3 = b4 > b5 = b6.

[0163] In some embodiments provided in this application, the angle between the second slope 312b and the thickness direction of the cover 100 is 5° to 40°.

[0164] In this embodiment, the angle range between the second slope 312b and the thickness direction is limited. This design ensures that infrared light entering the second slope 312b can be totally internally reflected by the annular convex ridge 312.

[0165] Figure 20 This is a partial cross-sectional view of the lampshade provided in an embodiment of this application. For example... Figure 20 As shown, in one embodiment provided in this application, the height d1 of the plurality of annular protrusions 312 is the same. The height d1 of the annular protrusions 312 can be understood as the length of the annular protrusions 312 in the Z direction.

[0166] In this embodiment, the annular ridges 312 of the same height can prevent protrusions from appearing on the first side 100, resulting in better consistency in the shape of the cover 100. This helps to reduce the overall thickness of the cover 100, making it easier to assemble and use in confined spaces.

[0167] In some embodiments provided in this application, the height d1 of the annular convex ridge 312 is 0.1 mm to 0.2 mm.

[0168] In this embodiment, the height d1 range of the annular convex ridge 312 is limited to ensure that the optical performance of the annular convex ridge 312 can refract and reflect the incident infrared light, so that the infrared light emitted from the second side 20 can spread out at a large angle to ensure the coverage of the infrared light.

[0169] For example Figure 20 As shown, in some embodiments provided in this application, the distance d2 between two adjacent annular protrusions 312 is 0.1mm to 0.15mm. The distance d2 between two adjacent annular protrusions 312 can be understood as the length of the top of the two adjacent annular protrusions 312 in the Y direction.

[0170] In this embodiment, the distance d2 between two adjacent annular protrusions 312 is limited to ensure the distribution density of the annular protrusions 312 on the first side 10, thereby ensuring the optical performance of the lampshade. Its ultimate purpose is also to enable the infrared light emitted from the second side 20 to spread out at a large angle to ensure the coverage range of the infrared light.

[0171] return Figure 9 As shown, in some embodiments provided in this application, the spherical curvature radius R of the central portion 311 is 0.3 mm to 5 mm.

[0172] Whether the central portion 311 is a convex or concave spherical surface, it is suitable for the aforementioned range of curvature radius R. This design ensures that the intensity of the emitted infrared light after passing through the central portion 311 is maintained, avoiding excessive attenuation. Furthermore, when the curvature radius of the concave spherical surface meets the aforementioned range, it allows the infrared light refracted by the central portion 311 to be evenly dispersed, ensuring the same infrared remote control effect for the lampshade in both "aligned" and "misaligned" situations.

[0173] Figure 21 This is a partial schematic diagram of the lampshade provided in an embodiment of this application.

[0174] like Figure 21 As shown, in some embodiments provided in this application, the projection of the central part 311 onto the first side 10 is circular, and the diameter d3 of the circle is 3mm to 10mm.

[0175] In this embodiment, the projection shape and size of the central part 311 are limited to prevent the central part 311 from being too large and thus encroaching on the arrangement range of the annular ridge 312 on the first side 10. This ensures that there are enough annular ridges 312 on the first side 10 to refract and reflect infrared light, thereby ensuring the overall optical performance of the lampshade.

[0176] Figure 22 This is a schematic diagram of the lampshade and infrared light source 401 provided in this application.

[0177] like Figure 22 As shown, in some embodiments provided in this application, after the cover 100 and the infrared light source 401 are assembled into the mobile phone, the distance d4 between the first optical structure 31 and the infrared light source 401 is 0.1mm to 1mm. The distance between the first optical structure 31 and the infrared light source 401 can be understood as the distance between the plane containing the top of the annular protrusion 312 and the infrared light source 401, i.e. Figure 22 Mid-range d4.

[0178] In this embodiment, after the cover 100 and the infrared light source 401 are assembled into the mobile phone, the distance d4 between the first optical structure 31 and the infrared light source 401 is limited. Within this distance range, the angle of light entering the first side 10 can be adjusted, thereby adjusting the incident angle of infrared light on the annular convex ridge 312, so that the optical performance of the annular convex ridge 312 can be fully utilized.

[0179] It should be noted that, Figure 22 Taking the central part 311 as a convex spherical surface as an example, when the central part 311 is a concave spherical surface or a plane, the distance d4 between the first optical structure 31 and the infrared light source 401 is also 0.1mm to 1mm.

[0180] The following describes some specific, but not limiting, examples of embodiments of this application in more detail with reference to the accompanying drawings.

[0181] Example 1

[0182] In one lampshade of this application, the design parameters of the first optical structure 31 are as follows: the height d1 of the annular convex rib 312 is 0.1 mm; the distance between two adjacent annular convex ribs 312 is d2 = 0.1 mm; the angle between the first slope surface 312a of the innermost annular convex rib 312 and the thickness direction is 20°, and the angle between the first slope surface 312a of the outermost annular convex rib 312 and the thickness direction is 45°; the angle between the second slope surface 312b of the innermost annular convex rib 312 and the thickness direction is 30°, and the angle between the second slope surface 312b of the outermost annular convex rib 312 and the thickness direction is 10°; the central part 311 is a convex spherical surface with a radius of curvature R = 0.3 mm; the diameter d3 of the projection circle of the central part 311 is 3 mm; and the distance between the first optical structure 31 and the infrared light source 401 is d4 = 0.1 mm.

[0183] Figure 23 This is an optical simulation diagram of the lampshade in Example 1. Figure 24 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 1. Wherein, Figure 24In this context, "H.deg" represents the horizontal field of view (FOV-H) in degrees; "V.deg" represents the vertical field of view (FOV-V) in degrees. The horizontal and vertical field of view can be understood as the infrared light emission angles of the second side 20 in different directions; "MW / Sr" is a physical unit describing radiant intensity, representing megawatts per steradian. In radiometry, radiant intensity refers to the radiant flux transmitted by a point radiation source within a unit solid angle in a given direction. Its unit can be W / Sr (watts per steradian) or MW / Sr (megawatts per steradian), which can be understood as the radiant power per unit solid angle. This unit is often used to describe the radiant intensity of a light source or radiation source in a specific direction, especially in applications involving infrared light sources 401, lasers 404, or other radiation sources.

[0184] like Figures 23-24 As shown, using the lampshade in Embodiment 1, the infrared light emitted by the infrared light source 401 can be diffused. Furthermore, even at a large infrared light emission angle, the diffused infrared light still possesses a certain radiation intensity, enabling infrared remote control of household appliances. Simulation tests show that when the lampshade 100 in Embodiment 1 is 1m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.2MW / Sr, both the horizontal and vertical field of view can reach 179°. When the lampshade 100 in Embodiment 1 is 2m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.7MW / Sr, the horizontal field of view can reach 158°, and the vertical field of view can reach 179°.

[0185] In contrast, if the light guide post 02 in the related technology is used, its infrared light emission angle is smaller while meeting the radiation intensity threshold required for infrared remote control. Specifically: Figure 25 This is an optical simulation diagram of the light guide post 02 in the related technology. Figure 26 This is a schematic diagram of the optical path of infrared light after passing through the light guide post 02 in the related technology, as shown below. Figures 25-26 As shown, when using the light guide post 02 in the related technology, the infrared light emitted by the infrared light source 03 can only diffuse near the axis of the light guide post 02 after passing through it. According to simulation tests, when the light guide post 02 in the related technology is 1m away from the receiver 701 of the household appliance and the radiation intensity threshold required for infrared remote control is 0.2MW / Sr, the horizontal field of view is only 102.03° and the vertical field of view is only 84.92°; when the light guide post 02 in the related technology is 2m away from the receiver 701 of the household appliance and the radiation intensity threshold required for infrared remote control is 0.7MW / Sr, the horizontal field of view is only 71.02° and the vertical field of view is only 74.63°.

[0186] It can be seen that when the light guide column 02 in the related technology meets the radiation intensity threshold required for infrared remote control, both the horizontal and vertical field of view are smaller than those of the lampshade in Embodiment 1. Therefore, the user needs to point the light guide column 02 at the household appliance to ensure that the remote control function is effective. Compared with the infrared remote control module using the lampshade in Embodiment 1, it is more inconvenient for the user to use the infrared remote control module composed of the light guide column 02.

[0187] Example 2

[0188] In one lampshade of this application, the design parameters of the first optical structure 31 are as follows: the height d1 of the annular convex rib 312 is 0.12 mm; the distance between two adjacent annular convex ribs 312 is d2 = 0.11 mm; the angle between the first slope surface 312a of the innermost annular convex rib 312 and the thickness direction is 25°, and the angle between the first slope surface 312a of the outermost annular convex rib 312 and the thickness direction is 50°; the angle between the second slope surface 312b of the innermost annular convex rib 312 and the thickness direction is 35°, and the angle between the second slope surface 312b of the outermost annular convex rib 312 and the thickness direction is 15°; the central part 311 is a convex spherical surface with a radius of curvature R = 1 mm; the diameter d3 of the projection circle of the central part 311 is 5 mm; and the distance between the first optical structure 31 and the infrared light source 401 is d4 = 0.3 mm.

[0189] Figure 27 This is an optical simulation diagram of the lampshade in Example 2. Figure 28 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 2. For example... Figures 27-28 As shown, the lampshade in Embodiment 2 can also diffuse the infrared light emitted by the infrared light source 401, enabling infrared remote control of household appliances. Simulation tests show that when the lampshade 100 in Embodiment 2 is 1m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.2MW / Sr, the horizontal field of view can reach 170°, and the vertical field of view can reach 179°; when the lampshade 100 in Embodiment 2 is 2m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.7MW / Sr, the horizontal field of view can reach 158°, and the vertical field of view can reach 179°.

[0190] It can be seen that, whether in terms of horizontal or vertical field of view, the lampshade in Embodiment 2 is superior to the light guide column 02 in the related technology.

[0191] Example 3

[0192] In one lampshade of this application, the design parameters of the first optical structure 31 are as follows: the height d1 of the annular convex rib 312 is 0.15 mm; the distance between two adjacent annular convex ribs 312 is d2 = 0.13 mm; the angle between the first slope surface 312a of the innermost annular convex rib 312 and the thickness direction is 10°, and the angle between the first slope surface 312a of the outermost annular convex rib 312 and the thickness direction is 40°; the angle between the second slope surface 312b of the innermost annular convex rib 312 and the thickness direction is 40°, and the angle between the second slope surface 312b of the outermost annular convex rib 312 and the thickness direction is 20°; the central part 311 is a convex spherical surface with a radius of curvature R = 2 mm; the diameter d3 of the projection circle of the central part 311 is 7 mm; and the distance d4 between the first optical structure 31 and the infrared light source 401 is 0.6 mm.

[0193] Figure 29 This is an optical simulation diagram of the lampshade in Example 3. Figure 30 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 3. For example... Figures 29-30 As shown, the lampshade in Embodiment 3 can also diffuse the infrared light emitted by the infrared light source 401, enabling infrared remote control of household appliances. Simulation tests show that when the lampshade 100 in Embodiment 3 is 1m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.2MW / Sr, the horizontal field of view can reach 172°, and the vertical field of view can reach 179°; when the lampshade 100 in Embodiment 3 is 2m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.7MW / Sr, the horizontal field of view can reach 158°, and the vertical field of view can reach 178°.

[0194] It can be seen that, whether in terms of horizontal or vertical field of view, the lampshade in Embodiment 3 is superior to the light guide column 02 in the related technology.

[0195] Example 4

[0196] In one lampshade of this application, the design parameters of the first optical structure 31 are as follows: the height d1 of the annular convex rib 312 is 0.18 mm; the distance between two adjacent annular convex ribs 312 is d2 = 0.14 mm; the angle between the first slope surface 312a of the innermost annular convex rib 312 and the thickness direction is 25°, and the angle between the first slope surface 312a of the outermost annular convex rib 312 and the thickness direction is 60°; the angle between the second slope surface 312b of the innermost annular convex rib 312 and the thickness direction is 30°, and the angle between the second slope surface 312b of the outermost annular convex rib 312 and the thickness direction is 5°; the central part 311 is a concave spherical surface with a radius of curvature R = 4 mm; the diameter d3 of the projection circle of the central part 311 is 9 mm; and the distance between the first optical structure 31 and the infrared light source 401 is d4 = 0.8 mm.

[0197] Figure 31 This is an optical simulation diagram of the lampshade in Example 4. Figure 32 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 4. For example... Figures 31-32 As shown, the lampshade in Embodiment 4 can also diffuse the infrared light emitted by the infrared light source 401, enabling infrared remote control of household appliances. Simulation tests show that when the lampshade 100 in Embodiment 4 is 1m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.2MW / Sr, the horizontal field of view can reach 170°, and the vertical field of view can reach 179°; when the lampshade 100 in Embodiment 4 is 2m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.7MW / Sr, the horizontal field of view can reach 158°, and the vertical field of view can reach 179°.

[0198] It can be seen that, whether in terms of horizontal or vertical field of view, the lampshade in Embodiment 4 is superior to the light guide column 02 in the related technology.

[0199] Example 5

[0200] In one lampshade of this application, the design parameters of the first optical structure 31 are as follows: the height d1 of the annular convex rib 312 is 0.2 mm; the distance between two adjacent annular convex ribs 312 is d2 = 0.15 mm; the angle between the first slope surface 312a of the innermost annular convex rib 312 and the thickness direction is 15°, and the angle between the first slope surface 312a of the outermost annular convex rib 312 and the thickness direction is 40°; the angle between the second slope surface 312b of the innermost annular convex rib 312 and the thickness direction is 35°, and the angle between the second slope surface 312b of the outermost annular convex rib 312 and the thickness direction is 15°; the central part 311 is a concave spherical surface with a radius of curvature R = 5 mm; the diameter d3 of the projection circle of the central part 311 is 10 mm; and the distance d4 between the first optical structure 31 and the infrared light source 401 is 1 mm.

[0201] Figure 33 This is an optical simulation diagram of the lampshade in Example 5. Figure 34 This is a schematic diagram of the optical path of infrared light after passing through the lampshade of Embodiment 5. For example... Figures 33-34As shown, the lampshade in Embodiment 5 can also diffuse the infrared light emitted by the infrared light source 401, enabling infrared remote control of household appliances. Simulation tests show that when the lampshade 100 in Embodiment 5 is 1m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.2MW / Sr, the horizontal field of view can reach 152°, and the vertical field of view can reach 179°; when the lampshade 100 in Embodiment 5 is 2m away from the receiver 701 of the household appliance, and the required radiation intensity threshold for infrared remote control is 0.7MW / Sr, the horizontal field of view can reach 148°, and the vertical field of view can reach 179°.

[0202] It can be seen that, whether in terms of horizontal or vertical field of view, the lampshade in Embodiment 5 is superior to the light guide column 02 in the related technology.

[0203] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lampshade, characterized in that, The enclosure includes a cover (100) having a first side surface (10) on which a first optical structure (31) for transmitting light from an infrared light source (401) is provided. The first optical structure (31) includes a central portion (311) and a plurality of concentrically arranged annular protrusions (312) located on the outer periphery of the central portion (311). The annular protrusions (312) include a first slope (312a) facing the central portion (311) and a second slope (312b) facing away from the central portion (311). From the central portion (311) to the annular protrusions (312), the angle between the first slope (312a) and the thickness direction of the enclosure (100) gradually increases.

2. The lampshade according to claim 1, characterized in that, From the center (311) to the annular ridge (312), the angle between the second slope (312b) and the thickness direction of the cover (100) gradually decreases.

3. The lampshade according to claim 1 or 2, characterized in that, The angle between the first slope (312a) and the thickness direction of the cover (100) is 10° to 60°.

4. The lampshade according to claim 2, characterized in that, The angle between the second slope (312b) and the thickness direction of the cover (100) is 5° to 40°.

5. The lampshade according to any one of claims 1-4, characterized in that, The height (d1) of the multiple annular protrusions (312) is the same.

6. The lampshade according to claim 5, characterized in that, The height (d1) of the annular protrusion (312) is 0.1mm to 0.2mm.

7. The lampshade according to any one of claims 1-6, characterized in that, The distance (d2) between two adjacent annular protrusions (312) is 0.1 mm to 0.15 mm.

8. The lampshade according to any one of claims 1-7, characterized in that, The central part (311) is a concave spherical surface.

9. The lampshade according to claim 8, characterized in that, The radius of curvature (R) of the concave spherical surface is 0.3 mm to 5 mm.

10. The lampshade according to any one of claims 1-9, characterized in that, Projecting onto the first side (10), the projection shape of the central part (311) is circular, and the diameter (d3) of the circle is 3mm to 10mm.

11. The lampshade according to any one of claims 1-10, characterized in that, The first side (10) is also provided with a second optical structure (32) for transmitting light from the flash lamp (402), and the second optical structure (32) is a Fresnel optical structure.

12. The lampshade according to claim 11, characterized in that, The first side (10) is also provided with a third optical structure (33) for transmitting ambient light, and the third optical structure (33) is a Fresnel optical structure.

13. The lampshade according to claim 12, characterized in that, The first side (10) is provided with a boss (40), the first optical structure (31), the second optical structure (32) and the third optical structure (33) are provided on the boss (40), and the part of the cover (100) located around the boss (40) is a mounting edge (50), which is used to fix with the camera decoration (500).

14. The lampshade according to claim 13, characterized in that, The first optical structure (31), the second optical structure (32), and the third optical structure (33) are arranged linearly. In the arrangement direction of the first optical structure (31), the second optical structure (32), and the third optical structure (33), one end of the boss (40) extends into a positioning block (41) on both sides. The positioning block (41) is used to cooperate with the positioning notch (505) provided on the camera decoration (500) to form a foolproof mechanism.

15. An electronic device, characterized in that, The device includes a circuit board (400), an infrared light source (401), and a lampshade as described in any one of claims 1-14. The circuit board (400) is spaced apart on one side of the lampshade (100), and the infrared light source (401) is disposed on the circuit board (400) and faces the first optical structure (31).

16. The electronic device according to claim 15, characterized in that, It also includes a screen (300), a mid-frame (201) and a back cover (202), wherein the screen (300) and the back cover (202) are respectively fixed to opposite sides of the mid-frame (201), and the cover (100) is disposed on the side of the electronic device having the back cover (202).

17. The electronic device according to claim 16, characterized in that, It also includes a camera decorative piece (500), which is fixed to the clearance hole (203) opened on the rear cover (202), and the cover (100) is fixed to the camera decorative piece (500).

18. The electronic device according to claim 17, characterized in that, It also includes a flash lamp (402) and an anti-flicker light sensor (403) disposed on the circuit board (400), and the cover (100) is also provided with a second optical structure (32) opposite to the flash lamp (402) and a third optical structure (33) opposite to the anti-flicker light sensor (403).

19. The electronic device according to claim 18, characterized in that, The camera decorative piece (500) has a lampshade hole (503). The first side (10) of the cover (100) is provided with a boss (40). The first optical structure (31), the second optical structure (32) and the third optical structure (33) are disposed on the boss (40). The part of the cover (100) around the boss (40) is a mounting edge (50). The boss (40) passes through the lampshade hole (503). The mounting edge (50) is fixed to the camera decorative piece (500).

20. The electronic device according to claim 19, characterized in that, On the outside of the camera decorative piece (500), a limiting groove (504) is provided at the opening of the lampshade hole (503), and the mounting edge (50) is fixed in the limiting groove (504); a light-transmitting cover plate (501) covering the cover body (100) is provided on the outside of the camera decorative piece (500).

21. The electronic device according to claim 20, characterized in that, The first optical structure (31), the second optical structure (32), and the third optical structure (33) are arranged linearly. In the arrangement direction of the first optical structure (31), the second optical structure (32), and the third optical structure (33), one end of the boss (40) extends into a positioning block (41) on both sides. The wall of the lampshade hole (503) is provided with a positioning notch (505), and the positioning block (41) is located in the positioning notch (505).

22. The electronic device according to any one of claims 15-21, characterized in that, The distance (d4) between the first optical structure (31) and the infrared light source (401) is 0.1 mm to 1 mm.

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