Intelligent glasses
By setting up a reflection module in the housing of the smart glasses, the RF signals emitted by the reflective antenna are solved, and the problems of poor stability and unsatisfactory communication performance of the smart glasses are achieved, achieving more stable signal transmission and higher communication quality.
Patent Information
- Application Number
- CN202421384173.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-06-17
AI Technical Summary
The antenna stability of smart glasses is poor and the antenna communication performance is not ideal, resulting in weak signal reception and poor signal quality, and the communication interaction cannot be achieved stably.
A smart glasses are designed, and by setting a reflection module close to the wearer's head in the housing of the housing cavity, the reflection module can reflect the radio frequency signal emitted by the first antenna and reflect it from the opposite direction to the head, thereby avoiding attenuation caused by the signal passing through the head.
It enhances the anti-interference ability and signal stability of the antenna module, and improves the quality of communication signals.
Smart Images
Figure CN222580334U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of smart glasses, and in particular to a type of smart glasses. Background Art
[0002] At present, when users use smart glasses to perform different functions, they often need to use antennas to realize the interaction between smart glasses and external electronic devices, or to realize the interaction between the display modules on both sides of the smart glasses. However, the antenna will transmit communication signals in all directions, and the communication signals will be attenuated when passing through the head, resulting in the communication signals received by the signal receiver (such as external electronic devices or the display module on the other side) being weak and poor in signal quality, making it impossible to realize stable communication interaction. Utility Model Content
[0003] The present application provides a pair of smart glasses, which can solve the problems of poor stability of the antenna of the smart glasses and unsatisfactory antenna communication performance in the related art.
[0004] In a first aspect, the present application provides a pair of smart glasses, the smart glasses comprising a display module, a frame module, a control module, an antenna module and a reflection module;
[0005] The display module includes an optical-mechanical component and a waveguide component, wherein the waveguide component is used to receive display light emitted by the optical-mechanical component and form output light;
[0006] The frame module comprises a frame assembly and a temple assembly connected to the frame assembly, the frame assembly is connected to the waveguide assembly, the optical-mechanical assembly and the waveguide assembly are both mounted on the frame assembly, the temple assembly comprises a temple and a receiving cavity connected to the temple, and a surface of the housing of the receiving cavity close to the wearer's head is used as a reflecting surface;
[0007] The control module is arranged in the accommodating cavity;
[0008] The antenna module includes a first antenna, the first antenna is electrically connected to the control module, and the first antenna is disposed in a housing of the accommodating cavity;
[0009] The reflection module is arranged on the reflection surface and is electrically connected to the control module. The reflection module is used for reflecting the radio frequency signal transmitted by the first antenna.
[0010] Optionally, the feeding end of the reflection module is electrically connected to the ground end of the control module.
[0011] Optionally, the first antenna is arranged on a side of the shell of the accommodating cavity away from the reflecting surface.
[0012] Optionally, the reflection module is arranged on the inner wall of the reflection surface, or the reflection module is arranged on the outer wall of the reflection surface.
[0013] Optionally, the temples are electrically connected to the control module, and the housing of the accommodating cavity includes a first housing portion connected to the temples and a second housing portion not connected to the temples;
[0014] The antenna module also includes a second antenna, which is electrically connected to the control module. The first antenna is arranged in the second shell part, and the second antenna is at least partially arranged in the first shell part and coupled to the temple so that the temple assembly, the control module and the antenna module form a ring loop.
[0015] Optionally, the material of the temples includes conductive metal.
[0016] Optionally, the first antenna is a PIFA antenna, and the second antenna is a parasitic antenna.
[0017] Optionally, an end of the temple away from the frame assembly forms an ear hook portion, and the accommodating cavity is located at the ear hook portion.
[0018] Optionally, the shell of the accommodating cavity is made of insulating plastic.
[0019] Optionally, the accommodating cavity further includes a battery module, and the battery module is electrically connected to the flexible connector and the control module.
[0020] The present application provides smart glasses, which include a display module, a frame module, a control module, an antenna module and a reflection module; the display module includes an optical-mechanical component and a waveguide component, the waveguide component is used to receive display light emitted by the optical-mechanical component and form output light; the frame module includes a frame component and a temple component connected to the frame component, the frame component is connected to the waveguide component, the optical-mechanical component and the waveguide component are both installed on the frame component, the temple component includes a temple and a receiving cavity connected to the temple, and a side of the housing of the receiving cavity close to the wearer's head serves as a reflection surface; the control module is arranged in the receiving cavity; the antenna module includes a first antenna, the first antenna is electrically connected to the control module, and the first antenna is arranged in the housing of the receiving cavity; the reflection module is arranged on the reflection surface and is electrically connected to the control module, and the reflection module is used to reflect the radio frequency signal emitted by the first antenna. Therefore, a reflection module can be arranged on the reflection surface close to the wearer's head, so that the reflection module can reflect the radio frequency signal emitted by the first antenna, so that the radio frequency signal is reflected from the direction opposite to the head as much as possible, thereby avoiding the attenuation of the radio frequency signal when passing through the head, thereby enhancing the anti-interference ability of the antenna module and the stability of the signal. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 A schematic diagram of the structure of a pair of smart glasses provided in an embodiment of the present application;
[0023] Figure 2 A schematic diagram of the structure of another type of smart glasses provided in an embodiment of the present application;
[0024] Figure 3 A schematic diagram of the structure of another type of smart glasses provided in an embodiment of the present application;
[0025] Figure 4 A schematic diagram of the structure of another smart glasses provided in an embodiment of the present application. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] The flowcharts shown in the accompanying drawings are only examples and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps may also be decomposed, combined or partially merged, so the actual execution order may change according to actual conditions.
[0028] It should be understood that the terms used in this application specification are only for the purpose of describing specific embodiments and are not intended to limit the application. As used in this application specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.
[0029] It should also be understood that the term “and / or” used in the specification and appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
[0030] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0031] In view of the defects of the prior art, the present application proposes a pair of smart glasses. The smart glasses can be provided with a reflection module on a reflection surface close to the wearer's head, so that the reflection module can reflect the radio frequency signal emitted by the first antenna, so that the radio frequency signal is reflected from the opposite direction of the head as much as possible, thereby avoiding the attenuation of the radio frequency signal caused by the head, thereby enhancing the anti-interference ability of the antenna module and the stability of the signal.
[0032] Exemplarily, the smart glasses may be AR (Augmented Reality) glasses, VR (Virtual Reality) glasses, or any other electronic device that can be used for AR imaging, such as smart wearable devices such as smart helmets, without specific limitation herein.
[0033] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a pair of smart glasses provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of another type of smart glasses provided in an embodiment of the present application.
[0034] like Figure 1 and Figure 2 As shown, the smart glasses 100 include a display module 10, a frame module 20, a control module 30, an antenna module 40 and a reflection module 60; the display module 10 may include an optomechanical component 12 and a waveguide component 11, and the waveguide component 11 is used to receive the display light emitted by the optomechanical component 12 and form an output light. Specifically, the waveguide component 11 is provided with a waveguide substrate, a coupling-in grating region and a coupling-out grating region, and the optomechanical component 12 is connected to the frame component 21 and is arranged corresponding to the coupling-in grating region. Among them, the coupling-in grating region and the coupling-out grating region can be arranged in the waveguide substrate, the coupling-in grating region is used to couple light into the waveguide substrate, and the coupling-out grating region is used to couple out the light propagating in the waveguide substrate. The light emitted by the optomechanical component 12 will be incident on the coupling-in grating region, and the light diffracted by the coupling-in grating region can form a total reflection in the waveguide substrate, thereby being transversely transmitted in the waveguide component 11 until it is diffracted again after the coupling-out grating region and reaches the human eye for imaging.
[0035] Exemplarily, the coupling-in grating region and the coupling-out grating region may also be arranged on different surfaces of the waveguide substrate, such as the coupling-in grating region is arranged on the first surface of the waveguide substrate, and the coupling-out grating region is arranged on the second surface of the waveguide substrate, or the coupling-out grating region is arranged on the first surface of the waveguide substrate, and the coupling-in grating region is arranged on the second surface of the waveguide substrate. As long as the coupling-in grating region can be used to couple light into the waveguide substrate, and the coupling-out grating region can be used to couple out light propagating in the waveguide substrate, it will be sufficient.
[0036] The frame module 20 includes a frame assembly 21 and a temple assembly 22 connected to the frame assembly 21, the frame assembly 21 is connected to the waveguide assembly 11, and the optical machine assembly 12 and the waveguide assembly 11 are both installed on the frame assembly 21; the temple assembly 22 includes a temple 220 and a accommodating cavity 23 connected to the temple 220, the flexible connecting piece 221 is electrically connected to the temple 220, and the side of the shell of the accommodating cavity 23 close to the wearer's head serves as a reflecting surface 233.
[0037] The reflective surface 233 may be one surface or multiple surfaces in the shell of the accommodating cavity 23 close to the wearer's head, that is, the reflective surface 233 may include one or more surfaces, which is not specifically limited here.
[0038] It should be noted that the accommodating cavity 23 can be a cavity opened inside the temple 220, or an external cavity. The accommodating cavity 23 can be integrally provided with the temple 220, or can be detachably connected to the temple 220, which is not specifically limited here.
[0039] The control module 30 can be set in the accommodating cavity 23; the antenna module 40 includes a first antenna 41, the first antenna 41 is electrically connected to the control module 30, and the first antenna 41 is set in the shell of the accommodating cavity 23; the reflection module 60 is set on the reflecting surface 233 and is electrically connected to the control module 30, and the reflection module 60 is used to reflect the radio frequency signal transmitted by the first antenna 41.
[0040] The control module 30 may be a PCBA board, which refers to a product on which electronic components such as integrated circuits and mounted components are welded to realize circuit functions. The first antenna 41 and the control module 30 may be electrically connected by means of conductive cloth, conductive foam, SMT reed, welding wire, etc., which are not specifically limited here.
[0041] Exemplarily, the reflection module 60 may be disposed on the entire surface of the shell on the side close to the wearer's head, or the reflection module 60 may be disposed on a portion of the surface of the shell on the side close to the wearer's head.
[0042] The present application sets a reflection module 60 on the reflection surface 233 close to the wearer's head, so that the reflection module 60 can reflect the radio frequency signal emitted by the first antenna 41, so that the radio frequency signal is reflected from the direction opposite to the head as much as possible, thereby avoiding the attenuation of the radio frequency signal due to passing through the head, thereby enhancing the anti-interference ability of the antenna module and the stability of the signal.
[0043] like Figure 3 As shown, in some embodiments, the feeding end of the reflection module 60 is electrically connected to the ground end of the control module 30 .
[0044] Specifically, the feeding end of the reflection module 60 can be electrically connected to the ground end of the control module 30. The reflection module 60 is used to reflect the radio frequency signal transmitted by the first antenna 41, so that the radio frequency signal transmitted by the first antenna 41 can be reflected as much as possible, thereby avoiding the attenuation of the radio frequency signal when passing through the human head, thereby improving the quality of the communication signal.
[0045] Exemplarily, the reflection module 60 can be electrically connected to the control module 30 through FPC, conductive cloth, conductive foam, SMT reed, welding wire, etc., which is not specifically limited here.
[0046] In some embodiments, the first antenna is disposed on a side of the housing of the accommodating cavity away from the reflective surface, thereby preventing the reflection module 60 from being unable to reflect the radio frequency signal emitted by the first antenna 41 .
[0047] Specifically, the first antenna 41 and the reflection module 60 are generally not set on the reflection surface 233 at the same time. The reflection module 60 can be set on the reflection surface 233, and the first antenna 41 can be set on the side opposite to the reflection surface 233. This can improve the reflection efficiency of the reflection module 60, and can reflect the radio frequency signal emitted by the first antenna 41 as much as possible, thereby avoiding the attenuation of the radio frequency signal due to passing through the human head, thereby improving the quality of the communication signal.
[0048] In some embodiments, the reflection module 60 is disposed on the inner wall of the reflection surface 233 , or the reflection module 60 is disposed on the outer wall of the reflection surface 233 .
[0049] Exemplarily, the reflection module 60 may be disposed on the inner wall of the reflection surface 233 , or on the outer wall of the reflection surface 233 , as long as it is disposed on the reflection surface 233 and can reflect the radio frequency signal emitted by the first antenna 41 .
[0050] Specifically, the reflective module 60 can be manufactured by a laser forming process, a printing forming process or a flexible printed circuit process.
[0051] Exemplarily, the reflective module 60 can be prepared by a laser forming (LDS) process. Specifically, a computer can be used to control the movement of the laser according to the trajectory of the conductive pattern, and the laser can be projected onto the shell of the molded accommodating cavity 23 to activate the circuit pattern, and then form the reflective module 60.
[0052] Exemplarily, the reflective module 60 can be prepared by a print forming (PDS) process, specifically, photosensitive adhesive and film can be used to expose, develop and etch on a steel plate, a pattern can be printed on the shell of the accommodating cavity 23 by a pad printing machine, and then the reflective module 60 can be made by thermal curing.
[0053] Exemplarily, the reflective module 60 may be prepared by a flexible printed circuit (FPC) process. Specifically, a printed circuit board with a pattern made of a flexible substrate may be used, which is composed of an insulating substrate and a conductive layer and may be adhered to the reflective surface 233 .
[0054] like Figure 4 As shown, in some embodiments, the reflection module 60 is disposed on the reflection surface 233, and the reflection module 60 is disposed on both the inner wall and the outer wall of the reflection surface 233. This can achieve a better signal reflection effect, thereby further avoiding signal attenuation caused by a human head.
[0055] Exemplarily, a reflection module 60 may be added to the inner surface of the reflection surface 233, or to the outer surface of the reflection surface 233. In this way, the radio frequency signal emitted by the first antenna 41 may be reflected as much as possible, and the attenuation prevention effect may be better.
[0056] It should be noted that the two reflection modules 60 can be conductive or non-conductive, and both can achieve the effect of reflecting signals. Through the design of the dual reflection modules 60, the characteristic of LDS (or PDS) process that circuits can be deployed on both the inner and outer layers of the housing can be fully utilized, which can achieve a better signal reflection effect, thereby further avoiding signal attenuation caused by human heads.
[0057] In some embodiments, the temple 220 is electrically connected to the control module 30, the shell of the accommodating cavity 23 includes a first shell portion 231 connected to the temple 220 and a second shell portion 232 not connected to the temple 220, the antenna module 40 also includes a second antenna 42, the second antenna 42 is electrically connected to the control module 30, the first antenna 41 is arranged in the second shell portion 232, the second antenna 42 is at least partially arranged in the first shell portion 231, and is coupled to the temple 220, so that the temple assembly 22, the control module 30 and the antenna module 40 form a ring loop.
[0058] The first antenna 41 is used to transmit radio frequency signals, and the second antenna 42 is used as a ground wire. The coupling connection may include radiation connection, electrical connection, and the like. The temple 220 and the control module 30 may be electrically connected by means of FPC, conductive cloth, conductive foam, SMT reed, welding wire, and the like; the first antenna 41, the second antenna 42 and the control module 30 may also be electrically connected by means of conductive cloth, conductive foam, SMT reed, welding wire, and the like, which are not specifically limited here.
[0059] Exemplarily, the portion of the shell of the accommodating cavity 23 connected to the temple 220 is the first shell portion 231 , and the portion of the shell of the accommodating cavity 23 not connected to the temple 220 is the second shell portion 232 .
[0060] Specifically, since the second antenna 42 is at least partially arranged in the first shell portion 231, the second antenna 42 located in the first shell portion 231 is arranged corresponding to the temple 220, thereby realizing the coupling connection between the second antenna 42 and the temple 220, and the coupling part and the grounding part can be equivalent to a matching circuit. Since the temple 220 is electrically connected to the control module 30, and the first antenna 41 and the second antenna 42 are both electrically connected to the control module 30, at this time, the second antenna 42, the temple 220 and the control module 30 form a conductive path, and the temple assembly 22, the control module 30 and the antenna module 40 form a ring loop, thereby achieving the effect of extending the antenna ground wire, and making the circuit corresponding to the antenna longer, effectively increasing the antenna radiation area and the antenna height, and avoiding the interference of other components to the antenna signal, thereby enhancing the anti-interference ability of the antenna module 40 and the signal stability.
[0061] In some embodiments, the temple assembly 22 further includes a flexible connector 221 , and the temple 220 and the control module 30 are electrically connected to the flexible connector 221 .
[0062] The flexible connector 221 may be a flexible circuit connector, such as a flexible printed circuit (FPC) or a bendable electrical component such as a flexible wire, etc. The flexible connector 221 can be electrically connected to the temple 220, so that the temple 220 and the flexible connector 221 can both become a conductive path.
[0063] Specifically, since the second antenna 42 is at least partially arranged in the first shell portion 231, the second antenna 42 located in the first shell portion 231 is arranged corresponding to the temple 220, thereby realizing the coupling connection between the second antenna 42 and the temple 220, and the coupling part and the grounding part can be equivalent to a matching circuit. Since the temple 220 is electrically connected to the flexible connector 221, and the flexible connector 221, the first antenna 41, and the second antenna 42 are all electrically connected to the control module 30, at this time, the second antenna 42, the temple 220, the flexible connector 221 and the control module 30 form a conductive path, and the temple assembly 22, the control module 30 and the antenna module 40 form a ring loop, thereby achieving the effect of extending the antenna ground wire, and making the circuit corresponding to the antenna longer, effectively increasing the antenna radiation area and the antenna height, and avoiding the interference of other components to the antenna signal, thereby enhancing the anti-interference ability of the antenna module 40 and the signal stability.
[0064] The coupling part and the grounding part can be equivalent to a matching circuit, and the matching circuit can also adjust various parameters of the antenna, so that the coupled loop antenna has high flexibility. For example, the parameters of the antenna can be adjusted by adjusting the length, volume and other parameters of the coupling part, so as to flexibly adjust the coupled loop antenna.
[0065] In some embodiments, the second antenna 42 is spaced apart from the temple 220, and radiates a signal to the temple 220 to achieve a coupling connection between the second antenna 42 and the temple assembly 22. Thus, the second antenna 42 and the temple assembly 22 can be coupled through a radiation connection, so that the second antenna 42 and the temple 220 form a conductive path.
[0066] Specifically, the temple assembly 22 also includes a flexible member 222, which is used to seal the flexible connector 221, and the flexible member 222 is arranged on the side of the temple assembly 22 facing the wearer. The accommodating cavity 23 is connected to the flexible member 222, and the flexible member 222 can be a component made of a flexible skin-friendly material such as a molded silicone strip or a rubber strip. At the same time, since the second antenna 42 is at least partially arranged in the first shell part 231, the second antenna 42 located in the first shell part 231 is arranged corresponding to the temple 220. At this time, the second antenna 42 can radiate signals to the temple 220 to achieve the coupling connection between the second antenna 42 and the temple assembly 22, that is, the temple 220 can become a part of the antenna module 40, thereby effectively increasing the area and antenna height of the antenna module 40, and avoiding interference of other components to the antenna signal.
[0067] Through the above-mentioned design of coupling and extending the temple 220 and the antenna, the distance between the antenna and the human head can also be increased, thereby cleverly avoiding the attenuation of the signal by the human head, having a good signal enhancement effect on the wireless communication between the temples 220, and minimizing the absorption of the antenna signal by the human head.
[0068] like Figure 3 As shown, in some embodiments, the feeding end of the first antenna 41 is electrically connected to the feeding end of the control module 30, and the grounding end of the first antenna 41 is electrically connected to the grounding end of the control module 30. Thus, the electrical connection between the first antenna 41 and the control module 30 can be achieved through the feeding end and the grounding end.
[0069] Among them, the first antenna 41 can be electrically connected to the control module 30 between the feeding points and the grounding points through FPC, conductive cloth, conductive foam, SMT reed, welding wire, etc., which is not specifically limited here.
[0070] Exemplarily, the feeding point of the first antenna 41 and the feeding end of the control module 30 can be connected and conducted via an SMT reed; the grounding end of the first antenna 41 and the grounding end on the circuit board can also be connected and conducted via an SMT reed.
[0071] In some embodiments, the feeding end of the second antenna 42 is electrically connected to the ground end of the control module 30. Thus, the electrical connection between the second antenna 42 and the control module 30 can be achieved through the feeding end and the ground end.
[0072] Exemplarily, the feeding end of the second antenna 42 and the other ground end of the control module 30 may be connected and conducted via an SMT spring.
[0073] In the related art, the shell of the accommodating cavity 23 generally only includes the first antenna 41, and does not include the second antenna 42. At this time, the first antenna 41 forms a shorter loop, and the antenna radiation area and antenna height are small, resulting in weak anti-interference ability of the antenna module 40 and signal stability.
[0074] In the embodiment of the present application, since the feeding end of the second antenna 42 is electrically connected to the other grounding end of the control module 30, that is, at this time, the feeding end of the second antenna 42 is connected to the grounding end of the first antenna 41, and at the same time, the second antenna 42 is coupled to the temple 220, the temple 220 is connected to the flexible connector 221, and the flexible connector 221 is connected to the grounding end of the control module 30, that is, the temple 220 and the flexible connector 221 become part of the ground wire, thereby effectively increasing the area and antenna height of the antenna module 40, and avoiding interference of other components to the antenna signal. Through the above-mentioned temple 220 and antenna coupling extension design, the distance between the antenna and the human head can also be increased, thereby cleverly bypassing and avoiding the attenuation of the signal by the human head, and having a good signal enhancement effect on the wireless communication between the temples 220, and minimizing the absorption of the antenna signal by the human head.
[0075] In some embodiments, the first antenna 41 is a PIFA antenna and the second antenna 42 is a parasitic antenna.
[0076] Among them, the PIFA antenna is a planar inverted F-shaped antenna, which uses a planar radiating unit as a radiator and a large ground as a reflective surface. It has the advantages of compact structure, stable performance, and easy integration. Parasitic antennas are used to improve or expand the performance of the original antenna, especially in terms of frequency coverage and bandwidth.
[0077] Specifically, the PIFA antenna can be disposed at any position of the second housing portion 232 . Generally, it is necessary to increase the antenna radiation area of the PIFA antenna as much as possible, so as to improve the communication quality of the antenna.
[0078] In some embodiments, the first antenna 41 and the second antenna 42 are manufactured by laser forming process, printing forming process or flexible printed circuit process.
[0079] Exemplarily, the first antenna 41 and the second antenna 42 can be prepared by a laser direct forming (LDS) process. Specifically, a computer can be used to control the movement of the laser according to the trajectory of the conductive pattern, and the laser can be projected onto the shell of the molded accommodating cavity 23 to activate the circuit pattern and then form a metal antenna.
[0080] Exemplarily, the first antenna 41 and the second antenna 42 can be prepared by a print direct molding (PDS) process. Specifically, photosensitive adhesive and film can be used to expose, develop and etch on a steel plate, and the pattern can be printed on the shell of the accommodating cavity 23 by a pad printing machine, and then the final antenna can be made by thermal curing.
[0081] Since the antenna prepared by the FPC process needs to be fixed with double-sided tape, there is a risk of falling off and poor stability, while the antenna prepared by the LDS process is plated on the shell through laser engraving and chemical plating and will not fall off. Therefore, the antenna prepared by the LDS process is more reliable than the antenna prepared by the traditional FPC process. Since the LDS antenna is directly laser engraved on the shell and the temple 220 is used as the antenna, the structure does not need to consider the antenna position and fixing method, which is very convenient for design. There is no need to assemble additional antennas during production and assembly, so it is also more suitable for mass production.
[0082] Of course, the embodiment of the present application can also adopt a flexible printed circuit (FPC) process to prepare the first antenna 41 and the second antenna 42. Specifically, a printed circuit board with a pattern made of a flexible substrate can be used, which is composed of an insulating substrate and a conductive layer and can be pasted on the shell of the accommodating cavity 23.
[0083] In some embodiments, the housing of the accommodating cavity 23 is made of insulating plastic, which can facilitate the formation of a metal antenna on the plastic housing.
[0084] For example, both the LDS process and the PDS process form a metal antenna on a plastic housing. The difference between the two is mainly the manufacturing process. LDS uses a laser engraving and chemical plating process, while PDS uses a silver paste printing process.
[0085] In some embodiments, the material of the temple 220 may include a conductive metal, so that the temple 220 itself has conductivity, thereby achieving coupling connection between the temple 220 and the second antenna 42 and electrical connection with the flexible connector 221 .
[0086] The conductive metal may include silver, copper, gold, etc., as long as it is a metal material that can achieve conductivity.
[0087] In some embodiments, the flexible connector 221 may include a flexible printed circuit board, so that the temple 220 and the control module 30 can be electrically connected through a highly reliable and excellent flexible printed circuit board.
[0088] Among them, the flexible printed circuit board is a highly reliable and excellently flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness and good bendability.
[0089] Since the flexible printed circuit board has the characteristics of high wiring density, light weight, thin thickness, and good bendability, it can be used as an electrical connection medium between the battery module 50 and the control module 30. At the same time, the flexible printed circuit board is also arranged in the temple 220. As long as the temple 220 is also made of conductive material, the electrical connection between the battery module 50 and the control module 30 can be achieved.
[0090] In some embodiments, one end of the temple 220 away from the frame assembly 21 forms an ear hook portion 225, and the accommodating cavity 23 is located at the ear hook portion 225. In this way, the accommodating cavity 23 can be hidden behind the ear, and the weight of the temple 220 can be balanced, thereby improving wearing stability and wearing comfort.
[0091] Specifically, the temple 220 may include an ear hook 225, a temple body 224, and a frame connection portion 223. The frame connection portion 223 is used to connect with the frame assembly 21, and the temple body 224 is used to connect the frame connection portion 223 and the ear hook 225. The accommodating cavity 23 may be provided in the temple body 224, or in the ear hook 225. Generally, the accommodating cavity 23 is provided in the ear hook 225 of the temple 220, and the accommodating cavity 23 is provided on the side of the ear hook 225 close to the wearer. Such an arrangement can hide the accommodating cavity 23 behind the ear, and can also realize the fixing of the glasses by matching the ear shape of the wearer, thereby increasing the wearing stability of the smart glasses 100.
[0092] In some embodiments, the accommodating cavity 23 further includes a battery module 50, and the battery module 50 is electrically connected to the flexible connector 221 and the control module 30. Not only can the battery module 50 quickly supply power to the main control module, but also the volume and weight of the frame assembly 21 can be further reduced, and the front and rear ends of the temple 220 can be balanced, thereby balancing the center of gravity of the smart glasses 100, reducing the discomfort caused by the downward pressure of the nose pad on the nose bridge, and improving the wearing comfort of the user.
[0093] Specifically, the battery module 50 is connected to the flexible connector 221, and is electrically connected to the optical-mechanical assembly 12 through the flexible connector 221, so as to provide power to the optical-mechanical assembly 12 and other components. In this way, the front and rear ends of the temple 220 can be balanced, thereby balancing the center of gravity of the smart glasses 100, reducing the discomfort caused by the downward pressure of the nose pad on the bridge of the nose, and improving the wearing comfort of the user.
[0094] The present application provides smart glasses, which include a display module 10, a frame module 20, a control module 30, an antenna module 40, and a reflection module 60; the display module 10 includes an optical-mechanical component 12 and a waveguide component 11, the waveguide component 11 is used to receive display light emitted by the optical-mechanical component 12 and form an output light; the frame module 20 includes a frame component 21 and a temple component 22 connected to the frame component 21, the frame component 21 is connected to the waveguide component 11, and the optical-mechanical component 12 and the waveguide component 11 are both installed on the frame component 21. In the embodiment, the temple assembly 22 includes a temple 220 and a receiving cavity 23 connected to the temple 220, and a surface of the housing of the receiving cavity 23 close to the wearer's head is used as a reflecting surface 233; the control module 30 is arranged in the receiving cavity 23; the antenna module 40 includes a first antenna 41, the first antenna 41 is electrically connected to the control module 30, and the first antenna 41 is arranged in the housing of the receiving cavity 23; the reflecting module 30 is arranged on the reflecting surface 233 and electrically connected to the control module 30, and the reflecting module 60 is used to reflect the radio frequency signal emitted by the first antenna 41. Therefore, the reflecting module 60 can be arranged on the reflecting surface 233 close to the wearer's head, so that the reflecting module 60 can reflect the radio frequency signal emitted by the first antenna 41, so that the radio frequency signal is reflected as far as possible from the direction opposite to the head, thereby avoiding the attenuation of the radio frequency signal caused by the head, thereby enhancing the anti-interference ability of the antenna module 40 and the stability of the signal.
[0095] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A smart glasses, characterized in that: The smart glasses include: A display module, the display module comprising an optical-mechanical component and a waveguide component, the waveguide component being used to receive display light emitted by the optical-mechanical component and form output light; A frame module, the frame module comprising a frame assembly and a temple assembly connected to the frame assembly, the frame assembly being connected to the waveguide assembly, the optical-mechanical assembly and the waveguide assembly being mounted on the frame assembly, the temple assembly comprising a temple and a receiving cavity connected to the temple, a surface of a shell of the receiving cavity close to a wearer's head being used as a reflecting surface; A control module, wherein the control module is disposed in the accommodating cavity; An antenna module, the antenna module comprising a first antenna, the first antenna being electrically connected to the control module, and the first antenna being disposed in a housing of the accommodating cavity; A reflection module, wherein the reflection module is arranged on the reflection surface and is electrically connected to the control module, and the reflection module is used for reflecting the radio frequency signal transmitted by the first antenna.
2. The smart glasses according to claim 1, characterized in that: The feeding end of the reflection module is electrically connected to the ground end of the control module.
3. The smart glasses according to claim 1, characterized in that: The first antenna is arranged on a side of the housing of the accommodating cavity away from the reflecting surface.
4. The smart glasses according to claim 1, characterized in that: The reflection module is arranged on the inner wall of the reflection surface, or the reflection module is arranged on the outer wall of the reflection surface.
5. The smart glasses according to claim 1, characterized in that: The temples are electrically connected to the control module, and the housing of the accommodating cavity comprises a first housing portion connected to the temples and a second housing portion not connected to the temples; The antenna module also includes a second antenna, which is electrically connected to the control module. The first antenna is arranged in the second shell part, and the second antenna is at least partially arranged in the first shell part and coupled to the temple so that the temple assembly, the control module and the antenna module form a ring loop.
6. The smart glasses according to claim 5, characterized in that: The material of the temples includes conductive metal.
7. The smart glasses according to claim 5, characterized in that: The first antenna is a PIFA antenna, and the second antenna is a parasitic antenna.
8. The smart glasses according to claim 1, characterized in that: One end of the temple away from the frame assembly forms an ear hook portion, and the accommodating cavity is located at the ear hook portion.
9. The smart glasses according to claim 1, characterized in that: The shell of the accommodating cavity is made of insulating plastic.
10. The smart glasses according to claim 1, characterized in that: The accommodating cavity further includes a battery module, and the battery module is electrically connected to the flexible connecting member and the control module.