Glasses

Abstract

The invention discloses a pair of glasses, and relates to the technical field of glasses. The antenna comprises a metal area, a bonding pad area and a feed coaxial line. The metal area is provided with a gap formed by slotting, and the feed end of the gap is electrically connected to the bonding pad area; at least part of the feed coaxial line is located in the bonding pad area and connected with the feed end, the gap comprises a plurality of gap units, and the gap units are mutually connected to form different gap units. The feed end connected with the feed coaxial line enters an open circuit state, that is, the feed coaxial line is directly used as a feed line of the gap, the situation that a bonding pad area needs to be set to be large due to the fact that a coupling mode is conventionally adopted and coupling feed of the gap is carried out through a microstrip line is avoided, the miniaturization design of the bonding pad area is achieved, and the size of the bonding pad area is reduced. The bonding pad area can be hidden in the glasses frame together with the camera module, so that the miniaturization requirement of the glasses is met, and meanwhile, the antenna can effectively radiate or receive electromagnetic waves through the gap units.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glasses, in particular to a kind of glasses. BACKGROUND

[0002] Transparent metal is used to design transparent antenna on the lens of glasses, to realize the sending and receiving of wireless signal, and the pad area of traditional transparent antenna needs to be hidden in the frame shell of glasses together with camera module.

[0003] But with the miniaturization of glasses, the volume of frame will gradually reduce, in the case of needing to retain camera module, because transparent antenna needs to excite frame by coupling mode, so the area of relatively arranged pad area is larger, so that the reduced metal frame cannot effectively accommodate pad area, and pad area is partially exposed outside frame shell, which is not conducive to the miniaturization of glasses. SUMMARY

[0004] The main purpose of the present application is to provide a kind of glasses, to solve the technical problem of how to make the volume reduced frame shell can effectively accommodate camera module and pad area.

[0005] To achieve the above purpose, the present application provides a kind of glasses, glasses include: antenna;

[0006] The antenna includes: metal region, pad area and feed-in coaxial line;

[0007] The metal region has slit formed by slitting, and the feed-in end of the slit is electrically connected to the pad area;

[0008] At least part of the feed-in coaxial line is located in the pad area and is connected with the feed-in end;

[0009] Wherein, the slit includes first slit unit, second slit unit and third slit unit;

[0010] The second end of the first slit unit is perpendicular to the second slit unit and is connected with the second slit unit, and forms L-shaped open-circuit slit unit with the second slit unit;

[0011] The second slit unit is perpendicular to the third slit unit and is connected with the third slit unit, and forms L-shaped slit unit with the third slit unit.

[0012] In an embodiment, the lens includes first surface and second surface opposite to the first surface, and side surface between the first surface and the second surface;

[0013] At least part of the pad area is arranged on the side surface.

[0014] In an embodiment, at least part of the feed-in coaxial line extends along the side surface.

[0015] In an embodiment, the feeding coaxial line is composed of an inner conductor and an outer conductor, and the feeding end is composed of a first suture line and a second suture line;

[0016] The inner conductor is connected with the second suture line, and the outer conductor is connected with the first suture line, and the feeding end is in an open circuit state.

[0017] In an embodiment, the metal region is divided into a transparent metal mesh region and a solid metal region.

[0018] The inner part of the first slit unit, the inner part of the second slit unit and the inner part of the third slit unit on the transparent metal mesh region are provided with a filling mesh, and the grid line shape of the filling mesh is consistent with the grid line shape of the transparent metal mesh region.

[0019] In an embodiment, the edges of the slits and the edges of the filling meshes are not provided with contour lines.

[0020] In an embodiment, there are gaps between the filling meshes, and there are gaps between the slits and the filling meshes provided in the slits.

[0021] In an embodiment, the glasses further comprise a lens, the lens comprising a front protective sheet and an antenna carrier sheet, and the metal region and the pad region are located on the antenna carrier sheet.

[0022] The second surface of the front protective sheet is attached to the first surface of the antenna carrier sheet.

[0023] In an embodiment, the glasses further comprise a frame, the frame being composed of a front frame and a rear frame, the front frame and the rear frame enclosing a receiving space, and the metal region is divided into a transparent metal mesh region and a solid metal region.

[0024] The transparent metal mesh region is composed of a first metal mesh partial region and a second metal mesh partial region, the first metal mesh partial region, the pad region and the solid metal region are located in the receiving space, and the second metal mesh partial region is located outside the receiving space.

[0025] The first surface of the front protective sheet is attached to part of the inner surface of the front frame, and the second surface of the antenna carrier sheet is attached to part of the inner surface of the rear frame.

[0026] In an embodiment, the pad area of the pad region is 5mm*0.9mm.

[0027] The length of the first slit unit is 7.25mm, and the width of the first slit unit is 0.2mm.

[0028] The length of the second slit unit is 20mm, and the width of the second slit unit is 0.5mm.

[0029] The length of the third slit unit is 4.5mm, and the width of the third slit unit is 0.5mm.

[0030] The first end of the first slot unit is a feeding end.

[0031] The one or more technical solutions provided in the application have at least the following technical effects:

[0032] The application provides an eye glass applied to an eye glass, which comprises an antenna; the antenna comprises a metal area, a pad area and a feeding coaxial line; a slot is formed on the metal area by slitting; a feeding end of the slot is electrically connected to the pad area; at least part of the feeding coaxial line is located in the pad area and is connected to the feeding end. The slot comprises a first slot unit, a second slot unit and a third slot unit; the second end of the first slot unit is perpendicular to the second slot unit and is connected to the second slot unit, and the first slot unit and the second slot unit form an L-shaped open slot unit; the second slot unit is perpendicular to the third slot unit and is connected to the third slot unit, and the second slot unit and the third slot unit form an L-shaped slot unit.

[0033] That is, the application sets the feeding end of the slot formed by slitting on the metal area in the pad area, so that part of the feeding coaxial line inserted into the pad area can be directly connected to the feeding end, the feeding end connected to the feeding coaxial line enters an open state, the feeding coaxial line is directly used as the feeding line of the slot, the situation that the pad area needs to be set to be large is avoided by the conventional coupling mode and the coupling feeding of the slot by the microstrip line, the miniaturized design of the pad area is realized, the pad area can be hidden in the frame together with the camera module, and thus the miniaturized demand of the eye glass is met. The slot in the application comprises the first slot unit, the second slot unit and the third slot unit, the slot units are connected to each other, multiple resonance points can be generated at high frequencies, and the antenna can effectively radiate or receive electromagnetic waves. BRIEF DESCRIPTION OF DRAWINGS

[0034] The drawings incorporated in the specification and constituting a part hereof illustrate embodiments consistent with the application and together with the specification are used to explain the principles of the application.

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0036] Figure 1 FIG. 1 is a structural schematic diagram of the eye glass of the application;

[0037] Figure 2 FIG. 2 is a structural schematic diagram of the conventional eye glass of the application;

[0038] Figure 3 A schematic diagram of the position of the camera module on the glasses;

[0039] Figure 4 A schematic diagram of the specific connection of the feeding coaxial line and the feeding end of the present application;

[0040] Figure 5 A schematic diagram of the position of each slot unit in the slot of the present application;

[0041] Figure 6 A schematic diagram of the input impedance curve of the slot simulation of the present application varying with frequency;

[0042] Figure 7 A schematic diagram of the surface current distribution of the slot of the present application at the frequency point of 2.6 GHz;

[0043] Figure 8 A schematic diagram of the surface current distribution of the slot of the present application at the frequency point of 5.6 GHz;

[0044] Figure 9 A schematic diagram of the surface current distribution of the slot of the present application at the frequency point of 7.5 GHz;

[0045] Figure 10 A schematic diagram of the antenna efficiency curve of the slot of the present application and the antenna efficiency curve of the conventional pure metal slot varying with frequency;

[0046] Figure 11 A schematic diagram of the specific structure of the filling grid in the slot of the present application;

[0047] Figure 12 A schematic diagram of the antenna efficiency curve of the slot with the filling grid inside and the antenna efficiency curve of the slot without the filling grid inside varying with frequency;

[0048] Figure 13 A schematic diagram of the antenna efficiency curve of the slot of the present application and the antenna efficiency curve of the non-transparent slot varying with frequency;

[0049] Figure 14 A schematic diagram of the overall structure of the glasses.

[0050] Explanation of the reference signs:

[0051] 10, metal area; 101, transparent metal grid area; 102, solid metal area;

[0052] 20, slot; a, feeding end; 201, first slot unit; 202, second slot unit; 203, third slot unit;

[0053] 30, pad area; 40, feeding coaxial line;

[0054] 2011, first stitching line; 2012, second stitching line; 4011, inner conductor; 4012, outer conductor;

[0055] b, first filling grid; c, second filling grid; d, third filling grid.

[0056] The purposes, functional features and advantages of the present application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0057] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.

[0058] In order to better understand the technical solutions of the present application, the specific embodiments will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0059] The main solution of the embodiments of the present application is to provide a pair of glasses, which comprises an antenna; the antenna comprises a metal area, a pad area and a feed coaxial line; the metal area has a slit formed by slitting, and the feed end of the slit is electrically connected to the pad area; at least part of the feed coaxial line is located in the pad area and connected to the feed end.

[0060] As the glasses are miniaturized, the volume of the frame will gradually decrease. In the case where the camera module needs to be retained, because the transparent antenna is excited by coupling, the area of the relatively arranged pad area is relatively large, so that the reduced frame cannot effectively accommodate the pad area, and the pad area is partially exposed outside the frame shell, which is not conducive to the miniaturization of the glasses.

[0061] The present application provides a solution, by setting the feed end of the slit formed by slitting on the metal area in the pad area, so that part of the feed coaxial line inserted into the pad area can be directly connected to the feed end, so that the feed end connected to the feed coaxial line enters an open circuit state, that is, the feed coaxial line is directly used as the feed line of the slit, avoiding the need to set a larger pad area in the conventional coupling mode through the microstrip line for coupling feed of the slit, realizing miniaturized design of the pad area, so that the pad area can be hidden together with the camera module in the frame, thereby meeting the miniaturization requirement of the glasses. The slit in the present application comprises a first slit unit, a second slit unit and a third slit unit, which are connected to each other, can generate multiple resonance points at high frequency, and can effectively radiate or receive electromagnetic waves.

[0062] Based on this, the embodiments of the present application provide a pair of glasses, which will be described below with reference to Figure 1 , Figure 1 is a structural schematic diagram of the glasses of the present application.

[0063] In this embodiment, the glasses include: an antenna; the antenna includes: a metal region 10, a pad region 30, and a feed coaxial line 40; the metal region 10 has a slit 20 formed by a slit, and the feed end a of the slit 20 is electrically connected to the pad region 30; the feed coaxial line 40, at least a portion of the feed coaxial line 40 is inserted into the pad region 30 and connected to the feed end a.

[0064] Combination Figure 2 and Figure 3 This section explains the concept of a standard transparent slit. First, by… Figure 2 It can be seen that, Figure 2 The proposed method involves a transparent slit on the lens that excites the eyeglass frame via coupling. Specifically, the coupling portion (microstrip line) is positioned on the pad area, indirectly connecting the coaxial line and the feed coplanar waveguide. Therefore, the corresponding pad area is relatively large, measuring 8.4mm x 5mm. However, according to... Figure 3 As can be seen, in addition to the pad area, the camera module is also set inside the frame. Therefore, as the frame is miniaturized and its volume is reduced, the space that can be hidden inside the frame will also be reduced. If the need to hide the camera module is met first, the pad area will not be able to be effectively accommodated, and the pad area will be exposed outside the frame.

[0065] Therefore, based on the aforementioned shortcomings, a type of eyeglasses as shown in this embodiment is proposed, combining... Figure 1 The following explanation is provided. In this embodiment, by placing the feed terminal a of the slot formed by the slit in the metal region 10 within the pad region 30, the feed coaxial line 40 inserted into the pad region 30 can be directly connected to the feed terminal a, which is in an open-circuit state. At this time, the feed terminal a connected to the feed coaxial line 40 will enter an open-circuit state, allowing the electromagnetic waves inside the feed coaxial line 40 to excite an electromagnetic field at the feed terminal a, which is in an open-circuit state. This electromagnetic field makes the slot 20 a device capable of receiving and transmitting wireless signals. Figure 2 Compared to the coupling method shown, this embodiment uses the feeding coaxial line 40 directly as the feed line for the slot 20, avoiding the need for a large pad area that would exist if the slot were fed through a microstrip line (i.e., the coupling section). Figure 1 It can be seen that the pad area 30 in this embodiment is significantly smaller than... Figure 2 The pad area in the middle is only 5mm*0.9mm, compared to Figure 2 Compared to the previous version, the size was reduced by 89.3%. This not only enabled the miniaturization of the pad area 30, allowing it to be hidden within the frame along with the camera module without being exposed, but also avoided the complex power supply structure design required for gap power supply via coupling.

[0066] It should be noted that the lens in the glasses includes a first surface and a second surface opposite to the first surface, and a side surface between the first surface and the second surface, with reference to Figure 1 It can be seen that at least part of the pad area 30 is arranged on the side surface, so as to reduce the lens surface area occupied by the antenna.

[0067] In addition, at least part of the feed coaxial line 30 extends along the side surface, and since the feed coaxial line is inserted into the accommodation space, in order to facilitate subsequent replacement, part of the feed coaxial line is located in the accommodation space, and part of the feed coaxial line is located outside the accommodation space, that is, as shown in Figure 1 The feed coaxial line 40 extends along the side surface of the lens.

[0068] Further, the feed coaxial line 40 is composed of an inner conductor 4011 and an outer conductor 4012, and the feed end a is composed of a first suture line 2011 and a second suture line 2012; the inner conductor 4011 is connected with the second suture line 2012, and the outer conductor 4012 is connected with the first suture line 2011.

[0069] Specifically, according to Figure 4 It can be seen that the feed coaxial line 40 has an inner conductor 4011 and an outer conductor 4012, and an insulating medium between the two, and the gap in the embodiment is surrounded by the first suture line 2011 and the second suture line 2012, so the two ends of the feed end a can be defined as the first suture line 2011 and the second suture line 2012.

[0070] In the embodiment, in order to enable the electromagnetic wave to propagate in the form of an electromagnetic field between the inner conductor 4011 and the outer conductor 4012 of the feed coaxial line 40, enable the electromagnetic wave to form a complete current loop, maintain the structure of the electromagnetic field, and enable the electromagnetic wave to transition from the feed coaxial line 40 to the feed end a without loss, feed the gap 30 to which the feed end a belongs, it is proposed that when the feed coaxial line 40 is connected with the feed end a, the inner conductor 4011 of the feed coaxial line 40 needs to be connected with the second suture line 2012 of the feed end a, and the outer conductor 4012 of the feed coaxial line 40 needs to be connected with the first suture line 2011 of the feed end a. This connection mode can make the feed end a enter an open circuit state, and enable the feed coaxial line 40 to directly serve as a feeder of the gap 30 to which the feed end a belongs. Specifically, the inner conductor 4011 is connected with the second suture line 2012 by low-temperature welding, and the outer conductor 4012 is connected with the first suture line 2011 by low-temperature welding, so as to ensure that the electromagnetic wave can be effectively transmitted from the feed coaxial line 40 to the gap 30 to which the feed end a belongs, and ensure the integrity and transmission efficiency of the wireless signal.

[0071] Meanwhile, because the input impedance of the slit 20 is usually not a pure resistance but a complex impedance with a reactance component, connecting the inner conductor 4011 and the outer conductor 4012 of the feed coaxial line 40 to the two slits of the feed end a respectively helps to achieve impedance matching between the slit 20 and the feed coaxial line 40, reduce wireless signal reflection and loss, and improve transmission efficiency. In addition, if only the inner conductor 4011 of the feed coaxial line 40 is connected to one slit of the feed end a, and the outer conductor 4012 is not connected to the other slit of the feed end a, wireless signals will leak in the feed coaxial line 40, causing energy loss and potential interference problems.

[0072] In a feasible implementation, the slit 20 includes a first slit unit 201, a second slit unit 202, and a third slit unit 203.

[0073] In the embodiment, the length of the first slit unit 201 is 7.25 mm, and the width of the first slit unit 201 is 0.2 mm; the length of the second slit unit 202 is 20 mm, and the width of the second slit unit 202 is 0.5 mm; the length of the third slit unit 203 is 4.5 mm, and the width of the third slit unit 203 is 0.5 mm; and the first end of the first slit unit 201 is the feed end a.

[0074] According to Figure 5 It can be known that the slit 20 formed by slitting the metal region includes three slit units, and through the combination of slit units with different slit lengths, multiple resonance points at high frequencies are achieved while reducing the slit length and the metal region 10. Details are as follows:

[0075] As shown in Figure 5 , the first slit unit 201 is perpendicular to the second slit unit 202 and connected to the second slit unit 202, forming an L-shaped open-circuit slit unit with the second slit unit 202, and the length of the L-shaped open-circuit slit unit can reach about 26 mm, which corresponds to a slit length of 1 / 4 wavelength at a 2.4 GHz frequency band, which is half the length of a traditional slit. The second slit unit 202 is perpendicular to the third slit unit 203 and connected to the third slit unit 203, forming an L-shaped slit unit with the third slit unit 203.

[0076] Through the above-mentioned slit units, multiple resonance points at high frequencies can be generated, as shown in Figure 6-9 .

[0077] As shown in Figure 6The figure shows the input impedance of the slit 20 composed of the first slit unit 201 to the third slit unit 203 in the embodiment of the application, in which the real part represents the resistance component of the slit 20, including the loss resistance and the radiation resistance, and the imaginary part represents the reactance component of the slit 20, including the inductance and the capacitance. It can be seen that the slit 20 has resonance points at about 2.6 GHz, 5.6 GHz and 7.5 GHz, that is, the slit 20 in the application can have resonance points at different frequencies, which means that the slit 20 can effectively transmit or receive electromagnetic waves at these frequencies without energy loss or reflection due to the inductive or capacitive component of the input impedance. Among them, Figure 6 The horizontal axis represents the frequency, and the vertical axis represents the resistance unit.

[0078] As shown in Figure 7 The figure shows the surface current distribution of the slit 20 composed of the first slit unit 201 to the third slit unit 203 in the embodiment of the application at the frequency of 2.6 GHz. It can be seen that there is a strong current distribution at the second slit unit 202 of the slit 20. The total length of the first slit unit 201 and the second slit unit 202 is about 26 mm, and considering the influence of the medium, the total medium electric length of the L-shaped open slit unit composed of the first slit unit 201 and the second slit unit 202 at the frequency of 2.6 GHz is about 1 / 4 wavelength, so the working mode of the L-shaped open slit unit at this frequency is 1 / 4 wavelength. Compared with the traditional slit length of 1 / 2 wavelength, the L-shaped open slit unit can reduce the length by half, which is conducive to the reduction of the area of the metal region 10 and meets the trend of reducing the area of the subsequent lens.

[0079] As shown in Figure 8 The figure shows the surface current distribution of the slit 20 in the embodiment of the application at the frequency of 5.6 GHz. It can be seen that the surface current is mainly concentrated in the second slit unit 202 and the third slit unit 203, and the surface current directions of the second slit unit 202 and the third slit unit 203 are opposite, that is, the second slit unit 202 and the third slit unit 203 play a complementary role in the antenna radiation process. The current in opposite directions can superimpose electromagnetic fields, thereby enhancing the radiation efficiency of the antenna. In addition, the total length of the second slit unit 202 and the third slit unit 203 is about 25 mm, so the second slit unit 202 and the third slit unit 203 together form a 1 / 2 wavelength L-shaped slit unit for radiation.

[0080] As shown in Figure 9The diagram shows the surface current distribution of slot 20 at 7.5 GHz in this embodiment. It can be seen that the surface current is mainly concentrated in the second slot unit 202 and the third slot unit 203, meaning that the second slot unit 202 and the third slot unit 203 are the main regions for radiating or receiving electromagnetic waves at the 7.5 GHz frequency. The operating mode is 3 / 4 wavelength, meaning that the length of the second slot unit 202 and the third slot unit 203 is 3 / 4 of the wavelength at the 7.5 GHz frequency, resulting in high radiation efficiency for the second slot unit 202 and the third slot unit 203 at the 7.5 GHz frequency.

[0081] It should be noted that, Figure 7-8 The color scale in the figure represents the current density (A / m) when the surface current flows through the gap 20.

[0082] Therefore, it can be seen that in this embodiment, the slot 20 formed by slits in the metal region 10 is composed of slot units with different slot lengths. Based on the connection relationship between each slot unit, different operating frequencies can be achieved when different slot lengths are formed. Taking the presence of the first slot unit 201 to the third slot unit 203 as an example, the antenna efficiency of the slot 20 composed of the first slot unit 201 to the third slot unit 203 varies with frequency (i.e., Figure 10 The transparent curve in the figure), and the frequency-dependent efficiency curve of the antenna with a pure metal slot (i.e., the efficiency curve of the antenna with a pure metal slot). Figure 10 (pure metal curves in the image) for example Figure 10 As shown, the curves of the two are basically consistent, that is, the antenna performance of the slot 20 composed of the first slot unit 201 to the third slot unit 203 is not much different from the antenna performance of the pure metal slot.

[0083] According to this Figure 10 It is also known that when the antenna efficiency of the slot 20 in this embodiment is less than -10dB, its corresponding operating frequency bands are 2.29GHz-2.57GHz and 3.3GHz-8GHz. However, the operating frequency bands required by the WIFI 6E / 7 protocol are 2.4GHz (802.11b / g, band range 2.400GHz to 2.4835GHz), 5GHz (802.11a, band range 5.150GHz to 5.825GHz), and 6E (802.11ax, band range 5.925GHz to 7.125GHz). Therefore, the operating frequency band of the slot 20 in this embodiment can cover mobile communication bands such as WIFI 6E / 7, meeting the requirements for wideband and multi-frequency antennas. Furthermore, compared to traditional LOOP, dipole, and monopole terminal antennas, the slot 20 in this embodiment not only has a simpler structure but also achieves a wider bandwidth range. Figure 10 The horizontal axis represents frequency, and the vertical axis represents antenna efficiency.

[0084] Further, it needs to be noted that, because the slit 20 in the embodiment is formed by slitting on the metal area 10, compared with the conventional slitting or windowing on the metal frame to form a multi-frequency antenna, the embodiment does not increase the structural design of the metal frame, and at the same time can ensure the integrity and aesthetics of the metal frame, avoiding the high complexity of the design of the metal frame and the complexity of the antenna wiring caused by slitting on the metal frame.

[0085] In a feasible implementation, referring to Figure 1 The metal area 10 is divided into a transparent metal grid area 101 and a solid metal area 102. The transparent metal grid area 101 and the solid metal area 102 in the embodiment have the same function, both of which serve as the ground terminal of the slit 20. The difference is that the transparent metal grid area 101 is exposed outside the frame of the glasses, that is, it is arranged on the lens of the glasses. In order to achieve the transparent effect and avoid blocking the user's line of sight, the transparent metal grid area 101 is implemented by a super-fine metal grid, wherein the grid lines of the super-fine metal grid can be set to 6um wide, 3um thick, and 150um apart, and the light transmittance can reach 83%, which can effectively avoid blocking the user's line of sight and achieve the transparent effect.

[0086] The solid metal area 102 is hidden in the accommodation space of the glasses. By connecting the solid metal area 102 and the transparent metal grid area 101, a larger ground terminal area is formed. Because the larger ground terminal area can provide a more stable reference plane, reduce wireless signal reflection, and enable more energy to be effectively radiated, impedance matching is better achieved, thereby improving the efficiency of the slit 20.

[0087] The filling grid is arranged in the interior of the first slit unit 201, the interior of the second slit unit 202, and the interior of the third slit unit 203 on the transparent metal grid area 101. The grid lines of the filling grid are consistent with the grid lines of the transparent metal grid area.

[0088] Because the slit is exposed outside the accommodation space of the glasses, that is, it is arranged on the lens of the glasses, although the slit 20 formed by slitting on the transparent metal grid area 101 has the same transparent effect as the transparent metal grid area 101, there is still a difference in transparency between the lens area with the transparent metal grid area 101 and the lens area without the transparent metal grid area 101. Therefore, in the case of strong light, the user can still observe the structure of the slit 20 on the transparent metal grid area 101, which is not conducive to the security of the slit 20.

[0089] Based on this, the embodiment proposes to arrange a filling grid in the interior of each slit unit. Specifically as Figure 11As shown, the first filling grid b is arranged in the first slit unit 201, the second filling grid c is arranged in the second slit unit 202, and the third filling grid d is arranged in the third slit unit 203. Since the grid line shapes of the arranged filling grids are consistent with the grid line shape of the transparent metal grid area 101, for example, the grid line shape with a grid line width of 6 um, a line thickness of 3 um, and a line distance of 150 um, the slit 20 can be visually integrated with the transparent metal grid area 101. Even if a user observes the transparent metal grid area 101 in a relatively strong light, the user cannot draw the structure of the slit 20 on the transparent metal grid area 101 because the filling grids are arranged inside the slit 20, thereby ensuring the privacy of the slit 20.

[0090] Meanwhile, in order to further enhance the privacy of the slit 20, the edges of the slit 20 and the edges of each filling grid in the embodiment are not provided with an outline, that is, the slit 20 and the filling grids are not outlined, thereby reducing the observability of the slit 20 and the filling grids.

[0091] It should be noted that the first filling grid b is arranged inside the first slit unit 201. Figure 11 That is, only the first filling grid b is arranged inside the first slit unit 201 on the transparent metal grid area 101. The first slit unit 201 on the real metal area 102 and the pad area 30 does not need to be provided with a transparent effect, and thus does not need to be provided with the first filling grid b.

[0092] Further, there is a gap between each filling grid, and there is a gap between the slit 20 and the filling grids arranged in the slit 20.

[0093] In order to achieve the privacy of the slit 20 while avoiding the deterioration of the antenna performance of the slit 20, the filling grids arranged in different slit units in the slit 20 are not connected to each other, and each slit unit and the filling grid arranged in each slit unit are not connected to each other, that is, a certain gap is arranged between each filling grid and between each slit unit and the filling grid arranged in each slit unit. The gap can ensure the privacy of the slit 20 while not affecting the antenna performance. The gap in the embodiment is 50 um, and the effect on the antenna performance is as follows. Figure 12 The simulation results are as follows:

[0094] Figure 12 When the feeding coaxial line 40 directly feeds the slit 20 in the embodiment, the antenna efficiency of the slit 20 when the filling grid is arranged inside the slit (that is, the filling grid curve in the Figure 12 ) and the antenna efficiency when no filling grid is arranged inside the slit (that is, the curve without filling grid in the Figure 12The curves showing the antenna efficiency versus frequency (without a filler mesh) are shown in the figure. It can be seen that the change in antenna efficiency versus frequency when a filler mesh is present inside the slot 20 is smaller compared to the change when no filler mesh is present. This indicates that the filler mesh inside the slot 20 has a minimal impact on antenna performance, ensuring the confidentiality of the slot 20 and enabling transparency of the slot 20 without negatively affecting antenna performance.

[0095] Furthermore, the antenna efficiency of the slot 20 composed of the first slot element 201 to the third slot element 203 varies with frequency (i.e., Figure 13 The transparent curve), and the frequency-dependent curve of the antenna efficiency of the non-transparent slot (i.e., the transparent curve), and the frequency-dependent curve of the antenna efficiency of the non-transparent slot. Figure 13 (non-transparent curves in the text) for example Figure 13 As shown, in this embodiment, the antenna efficiency of the slot 20 in the 2.38GHz-2.5GHz frequency band is approximately -2.76dB to -3.23dB, and in the 5.15GHz-7.125GHz frequency band, it is approximately -3.55dB to -5.25dB, which meets the communication performance requirements. In contrast, the antenna efficiency of the non-transparent slot in the 2.38GHz-2.5GHz frequency band is approximately -1.45dB to -1.98dB, and in the 5.15GHz-7.125GHz frequency band, it is approximately -1.89dB to -5.65dB. Therefore, compared to the non-transparent slot, the antenna efficiency loss of the slot 20 in this embodiment is less than 1.3dB in the 2.38GHz-2.5GHz frequency band and less than 1.9dB in the 5.15GHz-7.125GHz frequency band.

[0096] in, Figure 12 and Figure 13 The horizontal axis represents frequency, and the vertical axis represents antenna efficiency.

[0097] In one feasible implementation, refer to Figure 14 As shown, the glasses include a lens, which includes a front protective sheet and an antenna carrier sheet; the metal region 10 and the pad region 30 are located on the antenna carrier sheet, and the second surface of the front protective sheet is attached to the first surface of the antenna carrier sheet.

[0098] Specifically, an antenna carrier sheet with an antenna is attached to the front protective sheet using optically transparent adhesive to form a complete lens.

[0099] The antenna carrier sheet includes a first carrier region arranged parallel to the optical waveguide sheet and a second carrier region arranged at a certain angle to the optical waveguide sheet (i.e., Figure 14The second carrier region is coated on the side of the partial antenna carrier sheet, and the at least partial pad region is arranged in the second carrier region.

[0100] It should be noted that, in order to ensure that the lens is an integral whole, the shapes of the front protective sheet and the antenna carrier sheet are consistent, so that the front protective sheet can not only protect the antenna carrier sheet provided with the antenna, but also provide support for the pad region 30 on the glasses to prevent the pad region 30 from breaking.

[0101] The material of the antenna carrier sheet is PET, which is transparent and colorless, and the thickness can be 100 um. The material of the front protective sheet is PC, which protects the antenna carrier sheet.

[0102] Further, the glasses include a frame, which is composed of a front frame and a rear frame, and the front frame and the rear frame enclose a containing space. The metal region 10 is divided into a transparent metal mesh region 101 and a solid metal region 102.

[0103] The transparent metal mesh region 101 is composed of a first metal mesh partial region and a second metal mesh partial region. The first metal mesh partial region, the pad region 30, and the solid metal region 102 are located in the containing space, and the second metal mesh partial region is located outside the containing space. The first surface of the front protective sheet is attached to part of the inner surface of the front frame, and the second surface of the antenna carrier sheet is attached to part of the inner surface of the rear frame.

[0104] In order to improve the fault tolerance of the glasses formed after the lens and the frame are combined, the embodiment further divides the transparent metal mesh region into a first metal mesh partial region and a second metal mesh partial region. The first metal mesh partial region, the pad region 30, and the solid metal region 102 are located in the containing space, and the purpose is to avoid the situation that part of the solid metal region is exposed outside the frame after part of the front frame and the rear frame are combined to form a containing space smaller than the preset containing space. In this embodiment, part of the area of the solid metal region 102 is converted into the first metal mesh partial region, so as to ensure that the solid metal region 102 and the pad region 30 are not exposed outside the frame after combination.

[0105] The camera module can be arranged at the position ② in the above-mentioned Figure 14 The materials of the front frame and the rear frame can be plastic or metal, which can fix the lens and the camera module.

[0106] The above only describes some embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation made by using the contents of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A pair of eyeglasses, characterized in that, The glasses include: an antenna; The antenna includes: a metal region, a pad region, and a feed coaxial line; The metal region has a slot formed by a slit, and the power supply end of the slot is electrically connected to the pad region; At least a portion of the feed coaxial line is located within the pad area and is connected to the feed terminal; The gap includes a first gap unit, a second gap unit, and a third gap unit; The second end of the first slot unit is perpendicular to the second slot unit and is connected to the second slot unit, forming an L-shaped open-circuit slot unit with the second slot unit; The second slot unit is perpendicular to the third slot unit and is connected to the third slot unit, forming an L-shaped slot unit with the third slot unit.

2. The eyeglasses as described in claim 1, characterized in that, The eyeglasses also include a lens, the lens comprising a first surface and a second surface opposite to the first surface, and a side surface located between the first surface and the second surface; At least a portion of the pad area is located on the side.

3. The eyeglasses as described in claim 2, characterized in that, At least a portion of the power supply coaxial line extends along the side.

4. The eyeglasses as described in any one of claims 1-3, characterized in that, The power feeding coaxial line consists of an inner conductor and an outer conductor, and the power feeding end consists of a first seam and a second seam. The inner conductor is connected to the second seam, the outer conductor is connected to the first seam, and the power supply terminal is in an open circuit state.

5. The eyeglasses as described in claim 1, characterized in that, The metal region is divided into a transparent metal mesh region and a solid metal region; A filling mesh is provided inside the first slit unit, the second slit unit, and the third slit unit located on the transparent metal mesh area. The grid line shape of the filling mesh is consistent with the grid line shape of the transparent metal mesh area.

6. The eyeglasses as described in claim 5, characterized in that, No outline is provided at the edges of the gaps or the edges of the filling grids.

7. The eyeglasses as described in claim 5, characterized in that, There are gaps between each of the filling grids, and there are gaps between the gaps and the filling grids disposed in the gaps.

8. The eyeglasses as claimed in claim 1, characterized in that, The glasses also include a lens, the lens comprising a front protective sheet and an antenna carrier sheet, the metal region and the pad region being located on the antenna carrier sheet; The second surface of the front protective sheet is attached to the first surface of the antenna carrier sheet.

9. The eyeglasses as claimed in claim 8, characterized in that, The glasses also include a frame, which consists of a front frame and a rear frame, which together form an accommodating space. The metal area is divided into a transparent metal mesh area and a solid metal area. The transparent metal mesh area is composed of a first metal mesh portion area and a second metal mesh portion area. The first metal mesh portion area, the pad area, and the solid metal area are located within the receiving space, while the second metal mesh portion area is located outside the receiving space. The first surface of the front protective sheet is attached to a portion of the inner surface of the front lens frame, and the second surface of the antenna carrier sheet is attached to a portion of the inner surface of the rear lens frame.

10. The eyeglasses as claimed in claim 1, characterized in that, The area of ​​the pads in the pad region is 5mm*0.9mm; The length of the first slit unit is 7.25 mm, and the width of the first slit unit is 0.2 mm; The second slit unit has a length of 20mm and a width of 0.5mm. The length of the third gap unit is 4.5 mm, and the width of the third gap unit is 0.5 mm; The first end of the first slot unit is the power supply end.

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