Smart glasses

Abstract

The application provides a kind of intelligent glasses, comprising: glasses body;First eyeball tracking transmitting antenna, be set on glasses body;First eyeball tracking receiving antenna, be set on glasses body, and first eyeball tracking transmitting antenna match;Second eyeball tracking transmitting antenna, be set on glasses body;Second eyeball tracking receiving antenna, be set on glasses body, and second eyeball tracking transmitting antenna match;Wherein, the same direction of the circular polarization of first eyeball tracking transmitting antenna and second eyeball tracking receiving antenna, the same direction of the circular polarization of second eyeball tracking transmitting antenna and first eyeball tracking receiving antenna, the different direction of the circular polarization of first eyeball tracking transmitting antenna and second eyeball tracking transmitting antenna.

Description

Technical Field

[0001] This application belongs to the field of smart glasses technology, and specifically relates to a smart pair of glasses. Background Technology

[0002] Currently, smart glasses can serve as a medium for users to interact with the real or virtual world, but they need to obtain user input in real time. A common method is to track the user's eye movements to obtain user input.

[0003] In related technologies, eye-tracking solutions typically use cameras to capture the movement trajectory of the eyes and convert it into digital signals. Recognition algorithms are then used to ultimately determine the movement trajectory and gaze point of the eyes. However, cameras may fail to track or have poor tracking accuracy in the absence of light. Summary of the Invention

[0004] This application aims to provide a smart glasses solution that addresses the technical problem in related technologies where smart glasses using cameras to track the eyeball suffer from poor tracking accuracy in low light or no light conditions.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, this application provides a smart pair of glasses, comprising:

[0007] The glasses themselves;

[0008] The first eye-tracking antenna is mounted on the glasses themselves.

[0009] The first eye-tracking receiving antenna is mounted on the glasses body and is matched with the first eye-tracking transmitting antenna.

[0010] The second eye-tracking antenna is mounted on the glasses themselves.

[0011] The second eye-tracking receiving antenna is mounted on the glasses body and is matched with the second eye-tracking transmitting antenna.

[0012] Among them, the first eye-tracking transmitting antenna and the second eye-tracking receiving antenna have the same direction of circular polarization, the second eye-tracking transmitting antenna and the first eye-tracking receiving antenna have the same direction of circular polarization, and the first eye-tracking transmitting antenna and the second eye-tracking transmitting antenna have different directions of circular polarization.

[0013] In embodiments of this application, the smart glasses include a glasses body, a first eye-tracking transmitting antenna, a first eye-tracking receiving antenna, a second eye-tracking transmitting antenna, and a second eye-tracking receiving antenna, wherein the first eye-tracking transmitting antenna, the first eye-tracking receiving antenna, the second eye-tracking transmitting antenna, and the second eye-tracking receiving antenna are disposed on the glasses body.

[0014] The first eye-tracking transmitting antenna and the first eye-tracking receiving antenna are matched. That is, the electromagnetic waves emitted by the first eye-tracking transmitting antenna are reflected and received by the first eye-tracking receiving antenna. After processing the signal received by the first eye-tracking receiving antenna, the movement trajectory of the eyeball can be obtained. Similarly, the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna are matched. That is, the electromagnetic waves emitted by the second eye-tracking transmitting antenna are reflected and received by the second eye-tracking receiving antenna. After processing the signal received by the second eye-tracking receiving antenna, the movement trajectory of the eyeball can be obtained.

[0015] The first eye-tracking transmitting antenna and the first eye-tracking receiving antenna can target one of the human eyes, while the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna can target the other of the human eyes. Furthermore, the eye-tracking scheme using electromagnetic waves can be applied to low-light or no-light environments, thus improving the applicable environment of smart glasses.

[0016] Furthermore, the circular polarization of the first eye-tracking transmitting antenna and the second eye-tracking receiving antenna has the same direction of rotation. Therefore, the electromagnetic wave emitted by the first eye-tracking transmitting antenna is reflected and its rotation direction is reversed, forming an electromagnetic wave with the opposite rotation direction to the circular polarization of the second eye-tracking receiving antenna. This polarization isolation reduces the interference caused by the reflected electromagnetic wave (i.e., the first interference wave) to the second eye-tracking receiving antenna. Similarly, the circular polarization of the second eye-tracking transmitting antenna and the first eye-tracking receiving antenna has the same direction of rotation. Therefore, the electromagnetic wave emitted by the second eye-tracking transmitting antenna is reflected and its rotation direction is reversed, forming an electromagnetic wave with the opposite rotation direction to the circular polarization of the first eye-tracking receiving antenna. This polarization isolation further reduces the interference caused by the reflected electromagnetic wave (i.e., the second interference wave) to the first eye-tracking receiving antenna.

[0017] Furthermore, the circular polarization of the first and second eye-tracking transmitting antennas has different directions, which allows the first eye-tracking receiving antenna to better receive the electromagnetic waves emitted by the first eye-tracking transmitting antenna reflected from the eye, and the second eye-tracking receiving antenna to better receive the electromagnetic waves emitted by the second eye-tracking transmitting antenna reflected from the eye. This improves the accuracy of the first and second eye-tracking receiving antennas in receiving electromagnetic waves, thereby enhancing the accuracy of eye trajectory tracking.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic diagram of smart glasses according to an embodiment of this application is shown;

[0021] Figure 2 A schematic diagram illustrating the tracking of eye movements by smart glasses according to an embodiment of this application is shown;

[0022] Figure 3 A schematic diagram of smart glasses according to an embodiment of this application is shown;

[0023] Figure 4 A schematic diagram of a first lens in smart glasses according to an embodiment of this application is shown;

[0024] Figure 5 A schematic diagram of a second lens in smart glasses according to an embodiment of this application is shown;

[0025] Figure 6 A schematic diagram of a first eye-tracking transmitting antenna and a first eye-tracking receiving antenna in smart glasses provided in one embodiment of this application is shown;

[0026] Figure 7 A schematic diagram of a second eye-tracking transmitting antenna and a second eye-tracking receiving antenna in smart glasses provided in one embodiment of this application is shown;

[0027] Figure 8 A schematic diagram of a first eye-tracking transmitting antenna and a first eye-tracking receiving antenna in smart glasses provided in one embodiment of this application is shown;

[0028] Figure 9 A schematic diagram of a second eye-tracking transmitting antenna and a second eye-tracking receiving antenna in smart glasses provided in one embodiment of this application is shown;

[0029] Figure 10 This paper illustrates a schematic diagram of the circuit architecture for tracking the eye using a first eye-tracking transmitting antenna and a first eye-tracking receiving antenna in smart glasses according to an embodiment of this application.

[0030] Figure 11 This paper illustrates a schematic diagram of the circuit architecture for tracking the eye using a second eye-tracking transmitting antenna and a second eye-tracking receiving antenna in smart glasses according to an embodiment of this application.

[0031] Figure 12 This illustration shows a schematic diagram of smart glasses provided in one embodiment of this application worn on a human body;

[0032] Figure 13 A schematic diagram of the composition of the human eyeball is shown.

[0033] Figures 1 to 13 Figure label:

[0034] 100 Smart Glasses, 110 Glasses Body, 112 Frame, 114 Temples, 116 Hinge, 118 Frame Body, 120 Outer Shell, 122 Nose Pad, 124 First Lens, 126 First Conductive Layer, 128 First Display Panel, 130 First Upper Glass Layer, 132 First Liquid Crystal Layer, 134 First Lower Glass Layer, 136 First Upper Polarizing Layer, 138 First Lower Polarizing Layer, 140 First Backlight, 142 First Adhesive Layer, 144 First Protective Layer, 146 Second Lens, 148 Second Conductive Layer, 150 Second Display Panel, 152 Second Upper Glass Layer, 154 Second liquid crystal layer, 156 Second lower glass layer, 158 Second upper polarizing layer, 160 Second lower polarizing layer, 162 Second backlight, 164 Second adhesive layer, 166 Second protective layer, 170 Controller, 182 First eye-tracking transmitting antenna, 184 First eye-tracking receiving antenna, 186 Second eye-tracking transmitting antenna, 188 Second eye-tracking receiving antenna, 200 Eyeball, 202 Lens, 204 Vitreous body, 206 Retina, 208 Blind spot, 210 Optic nerve, 212 Aqueous humor, 214 Cornea, 216 Pupil, 218 Iris, 300 Human body. Detailed Implementation

[0035] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0036] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0037] In the description of this application, it should be understood that the terms "upper" and "inner", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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.

[0038] 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The following is combined Figures 1 to 13 A smart glasses 100 according to an embodiment of this application is described. (The attached text is incomplete and cannot be translated.) Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 In this context, "Tx" represents "transmit" and "Rx" represents "receive".

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, this application provides a smart glasses 100, including: a glasses body 110; a first eye-tracking transmitting antenna 182 disposed on the glasses body 110; a first eye-tracking receiving antenna 184 disposed on the glasses body 110 and matched with the first eye-tracking transmitting antenna 182; a second eye-tracking transmitting antenna 186 disposed on the glasses body 110; and a second eye-tracking receiving antenna 188 disposed on the glasses body 110 and matched with the second eye-tracking transmitting antenna 186; wherein the first eye-tracking transmitting antenna 182 and the second eye-tracking receiving antenna 188 have the same circular polarization direction, the second eye-tracking transmitting antenna 186 and the first eye-tracking receiving antenna 184 have the same circular polarization direction, and the first eye-tracking transmitting antenna 182 and the second eye-tracking transmitting antenna 186 have different circular polarization directions.

[0041] In the embodiments of this application, the smart glasses 100 includes a glasses body 110, a first eye-tracking transmitting antenna 182, a first eye-tracking receiving antenna 184, a second eye-tracking transmitting antenna 186, and a second eye-tracking receiving antenna 188, which are disposed on the glasses body 110.

[0042] The first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are matched. That is, the electromagnetic waves emitted by the first eye-tracking transmitting antenna 182 are reflected and received by the first eye-tracking receiving antenna 184. Thus, after processing the signal received by the first eye-tracking receiving antenna 184, the movement trajectory of the eyeball 200 can be obtained. Similarly, the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are matched. That is, the electromagnetic waves emitted by the second eye-tracking transmitting antenna 186 are reflected and received by the second eye-tracking receiving antenna 188. Thus, after processing the signal received by the second eye-tracking receiving antenna 188, the movement trajectory of the eyeball 200 can be obtained.

[0043] The first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 can target one of the eyes of the human body 300, and the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 can target the other of the eyes of the human body 300. Furthermore, the tracking scheme of the eyeball 200 trajectory through electromagnetic waves can be applied to low-light or no-light environments, thus improving the applicable environment of the smart glasses 100.

[0044] Furthermore, the circular polarization of the first eye-tracking transmitting antenna 182 and the second eye-tracking receiving antenna 188 has the same direction of rotation. Consequently, the electromagnetic wave emitted by the first eye-tracking transmitting antenna 182 is reflected and its rotation direction is reversed, forming an electromagnetic wave with the opposite rotation direction to the circular polarization of the second eye-tracking receiving antenna 188. This polarization isolation between the two reduces interference to the second eye-tracking receiving antenna 188 caused by the reflected electromagnetic wave emitted by the first eye-tracking transmitting antenna 182. Similarly, the second eye-tracking transmitting antenna 186 and the first eye-tracking receiving antenna 188... Since the circular polarization of antenna 4 has the same direction of rotation, the electromagnetic wave emitted by the second eye-tracking transmitting antenna 186 is reflected and its rotation direction is reversed, forming an electromagnetic wave with the opposite rotation direction to the circular polarization of the first eye-tracking receiving antenna 184. The two are polarization isolated, thereby reducing the interference of the electromagnetic wave emitted by the second eye-tracking transmitting antenna 186 to the first eye-tracking receiving antenna 184 after reflection. This improves the accuracy of the first eye-tracking receiving antenna 184 and the second eye-tracking receiving antenna 188 in receiving electromagnetic waves, and improves the accuracy of tracking the trajectory of the eye 200.

[0045] Furthermore, the circular polarization of the first eye-tracking transmitting antenna 182 and the second eye-tracking transmitting antenna 186 has different directions, which allows the first eye-tracking receiving antenna 184 to better receive the electromagnetic waves emitted by the first eye-tracking transmitting antenna 182 reflected by the eye, and the second eye-tracking receiving antenna 188 to better receive the electromagnetic waves emitted by the second eye-tracking transmitting antenna 186 reflected by the eye. This improves the accuracy of the first eye-tracking receiving antenna 184 and the second eye-tracking receiving antenna 188 in receiving electromagnetic waves, thereby improving the accuracy of eye trajectory tracking.

[0046] Specifically, such as Figure 12 As shown, after the human body 300 wears the smart glasses 100, the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 can track the movement trajectory of one eye 200 of the human body 300, and the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 can track the movement trajectory of the other eye 200 of the human body 300, thereby realizing the determination of the movement trajectory of both eyes of the human body 300.

[0047] Furthermore, different circular polarization settings are formed for the antennas of the human body's 300 eyes, thereby achieving high polarization isolation of the antenna received signals. This ensures that the radar signal tracking the left eye will not interfere with the radar tracking the right eye, and vice versa. Ultimately, the left and right eye tracking radars can simultaneously recognize 200 eye movements with low mutual interference.

[0048] In one possible implementation, the circular polarizations of the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are in opposite directions; the circular polarizations of the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are in opposite directions.

[0049] Specifically, the circular polarization of the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 has opposite directions. As a result, the electromagnetic waves emitted by the first eye-tracking transmitting antenna 182 are reflected by the human eye 200 and their polarization is reversed, forming electromagnetic waves with the same polarization direction as the first eye-tracking receiving antenna 184. The two polarizations are consistent, thereby reducing signal loss caused by polarization mismatch and improving the accuracy and sensitivity of the smart glasses 100 in recognizing the trajectory of the eye 200.

[0050] The circular polarization of the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 has opposite directions. As a result, the electromagnetic waves emitted by the second eye-tracking transmitting antenna 186 are reflected by the human eye 200 and their polarization is reversed, forming electromagnetic waves with the same direction of polarization as the second eye-tracking receiving antenna 188. The two polarizations are consistent, which reduces the signal loss caused by polarization mismatch and improves the accuracy and sensitivity of the smart glasses 100 in recognizing the trajectory of the eye 200.

[0051] like Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the glasses body 110 includes: a frame 112; a first lens 124 disposed on the frame 112, a first eye-tracking transmitting antenna 182 and a first eye-tracking receiving antenna 184 disposed on the first lens 124; and a second lens 146 disposed on the frame 112, a second eye-tracking transmitting antenna 186 and a second eye-tracking receiving antenna 188 disposed on the second lens 146.

[0052] Specifically, the glasses body 110 includes a frame 112, a first lens 124, and a second lens 146. The first lens 124 and the second lens 146 are disposed on the frame 112. The first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are disposed on the first lens 124. The first lens 124 faces the human eye 200. Its position facilitates the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 to better identify the movement trajectory of the eye 200, thereby improving the accuracy and sensitivity of the eye trajectory recognition.

[0053] The second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are mounted on the second lens 146, which faces the human eye 200. The position of the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 facilitates better identification of the movement trajectory of the eye 200, thereby improving the accuracy and sensitivity of the identification of the eye 200 trajectory.

[0054] Among them, the first lens 124 and the second lens 146 face the left and right eyes of the human body 300, respectively.

[0055] Furthermore, the frame 112 includes temples 114, a pivot 116, a frame 118, an outer shell 120, and a nose pad 122. The first lens 124 and the second lens 146 are arranged side by side on the frame 118. The nose pad 122 is connected to the frame 118 and is located between the first lens 124 and the second lens 146. There are two temples 114, which are connected to the two ends of the frame 118 through the pivot 116, thereby realizing the folding and unfolding of the smart glasses 100. The outer shell 120 is arranged on the frame 118 and can be used to enclose the installation space of electronic devices, etc.

[0056] The frame 118 can be made of metal, plastic or plastic and can be conductive; the temples 114 can be made of metal, plastic or plastic; the hinge 116 can be made of metal, plastic or plastic; the nose pads 122 can be made of metal, plastic or plastic; and the outer shell 120 can be made of metal, plastic or plastic.

[0057] As one possible implementation, the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 are light-transmitting.

[0058] Specifically, the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are transparent, thereby ensuring that the human body 300 can observe the outside world or view images through the first lens 124, reducing the impact of the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 on the first lens 124. The second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are transparent, thereby ensuring that the human body 300 can observe the outside world or view images through the second lens 146, reducing the impact of the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 on the second lens 146.

[0059] like Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are embedded inside the first lens 124; the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are embedded inside the second lens 146.

[0060] Specifically, the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are embedded inside the first lens 124, thereby achieving the protection effect of the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 and reducing the possibility of damage to the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184. The second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are embedded inside the second lens 146, thereby achieving the protection effect of the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 and reducing the possibility of damage to the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188.

[0061] Since the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 are embedded in the lens of the smart glasses 100, they do not need to occupy additional space in the temples 114 and the frame 118. Therefore, the WIFI, BT, 4G and 5G communication antennas, as well as the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 can coexist on the smart glasses 100.

[0062] like Figure 4 and Figure 5 As shown, in one possible implementation, the first lens 124 includes a first conductive layer 126, and a first eye-tracking transmitting antenna 182 and a first eye-tracking receiving antenna 184 are disposed on the first conductive layer 126; the second lens 146 includes a second conductive layer 148, and a second eye-tracking transmitting antenna 186 and a second eye-tracking receiving antenna 188 are disposed on the second conductive layer 148.

[0063] Specifically, the first lens 124 includes a first conductive layer 126, which can realize functions such as touch or display. The first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 are disposed on the first conductive layer 126, which can reduce the space occupied by the glasses body 110.

[0064] The second lens 146 includes a second conductive layer 148, which can realize functions such as touch or display. The second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 are disposed on the second conductive layer 148, which can reduce the space occupied by the glasses body 110.

[0065] like Figure 4 and Figure 5As shown, in one possible implementation, the first lens 124 further includes a first display panel 128 and a first upper polarizing layer 136, with the first conductive layer 126 located between the first display panel 128 and the first upper polarizing layer 136; the second lens 146 further includes a second display panel 150 and a second upper polarizing layer 158, with the second conductive layer 148 located between the second display panel 150 and the second upper polarizing layer 158.

[0066] Specifically, the first lens 124 further includes a first display panel 128 and a first upper polarizing layer 136, with the first conductive layer 126 located between the first display panel 128 and the first upper polarizing layer 136. The second lens 146 further includes a second display panel 150 and a second upper polarizing layer 158, with the second conductive layer 148 located between the second display panel 150 and the second upper polarizing layer 158. This enables the first lens 124 and the second lens 146 to have display effects, enabling the playback of images or videos, as well as virtual reality (VR) or augmented reality (AR) functions.

[0067] The first conductive layer 126 and the second conductive layer 148 can be indium tin oxide (ITO) layers or silver nanowire layers. Since the first lens 124 and the second lens 146 do not need to provide touch functionality, damaging the ITO layer has a low impact on the screen and a limited impact on the functionality of the smart glasses 100. Furthermore, it does not occupy extra space in the smart glasses 100, offering good design flexibility. Similarly, any of the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 can be made of indium tin oxide or silver nanowires, thus enabling the fabrication of the required antennas without damaging the display structure of the first lens 124 and the second lens 146.

[0068] like Figure 4 As shown, the first lens 124 includes a first backlight 140, a first lower polarizing layer 138, a first display panel 128 (Panel), a first conductive layer 126, a first upper polarizing layer 136, a first adhesive layer 142, and a first protective layer 144, which are stacked sequentially. The first display panel 128 includes a first lower glass layer 134, a first liquid crystal layer 132, and a first upper glass layer 130, which are stacked sequentially. The first upper glass layer 130 and the first conductive layer 126 are bonded together, and the first lower glass layer 134 and the first lower polarizing layer 138 are bonded together, thereby achieving the display effect of the first lens 124. The first protective layer 144 can be made of glass, and the first adhesive layer 142 can be a transparent adhesive, such as optical clear adhesive (OCA).

[0069] like Figure 5 As shown, the second lens 146 includes a second backlight 162, a second lower polarizing layer 160, a second display panel 150, a second conductive layer 148, a second upper polarizing layer 158, a second adhesive layer 164, and a second protective layer 166, all stacked sequentially. The second display panel 150 includes a second lower glass layer 156, a second liquid crystal layer 154, and a second upper glass layer 152, all stacked sequentially. The second upper glass layer 152 is bonded to the second conductive layer 148, and the second lower glass layer 156 is bonded to the second lower polarizing layer 160, thereby achieving the display effect of the second lens 146. The first protective layer 144 can be made of glass, and the first adhesive layer 142 can be a transparent adhesive, such as optical clear adhesive (OCA).

[0070] like Figure 10 and Figure 11 As shown, in one possible implementation, it further includes: a controller 170, disposed on the eyeglass body 110, and electrically connected to a first eye-tracking transmitting antenna 182, a first eye-tracking receiving antenna 184, a second eye-tracking transmitting antenna 186, and a second eye-tracking receiving antenna 188; wherein, the controller 170 determines the relative position of the lens 202 and vitreous body 204 of the eyeball 200 based on the reflected signal received by the first eye-tracking receiving antenna 184, and the controller 170 determines the relative position of the lens 202 and vitreous body 204 of the eyeball 200 based on the reflected signal received by the second eye-tracking receiving antenna 188.

[0071] Specifically, the glasses body 110 is also equipped with a controller 170, which is electrically connected to the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188. The controller 170 can control the first eye-tracking transmitting antenna 182 and the second eye-tracking transmitting antenna 186 to emit electromagnetic waves. The relative positions of the lens 202 and vitreous body 204 of the eyeball 200 are determined based on the reflected waves received by the first eye-tracking receiving antenna 184 and the second eye-tracking receiving antenna 188. By continuously determining the position, the trajectory of the eyeball 200 can be tracked. This method of tracking the trajectory of the eyeball 200 is based on the composition of the eyeball 200 to identify the movement trajectory of the eyeball 200, which can improve the accuracy of the positioning of the lens 202 and vitreous body 204.

[0072] The human eyeball, with a diameter of 300, is composed of 200 cells. Figure 13As shown, the eyeball 200 includes a lens 202, vitreous body 204, retina 206, blind spot 208, optic nerve 210, aqueous humor 212, cornea 214, pupil 216, and iris 218. The most important components are the lens 202 and vitreous body 204. The lens 202 and vitreous body 204 have different electromagnetic wave reflection characteristics, and therefore, their corresponding radar cross-sections (RCS) are different. Consequently, the reflected signals received are different. Based on this, the trajectory of the eyeball 200 can be detected by electromagnetic waves.

[0073] And, as Figure 10 As shown, the first eye-tracking transmitting antenna 182 is controlled by the radio frequency chip to emit electromagnetic waves, and the reflected waves are obtained by the first eye-tracking receiving antenna 184. By continuously determining the position of the lens 202 and vitreous body 204 on the eyeball 200, the movement trajectory of the eyeball 200 is determined.

[0074] like Figure 11 As shown, the second eye-tracking transmitting antenna 186 is controlled by the radio frequency chip to emit electromagnetic waves, and the reflected waves are obtained by the second eye-tracking receiving antenna 188. By continuously determining the position of the lens 202 and vitreous body 204 on the eyeball 200, the movement trajectory of the eyeball 200 is determined.

[0075] Specifically, after receiving the reflected wave, the reflected signal is converted into a digital signal and then processed by a corresponding recognition algorithm to distinguish the position of the lens 202 relative to the vitreous body 204, thereby tracking the telekinetic trajectory of the lens 202 and realizing the tracking of the movement trajectory of the eyeball 200.

[0076] like Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in one possible implementation, there are multiple first eye-tracking receiving antennas 184, which are arranged in an array; there are also multiple second eye-tracking receiving antennas 188, which are arranged in an array.

[0077] Specifically, there are multiple first eye-tracking receiving antennas 184, which are arranged in an array to increase the range of received reflections and improve the accuracy of tracking the trajectory of the eye 200. Similarly, there are multiple second eye-tracking receiving antennas 188, which are also arranged in an array to increase the range of received reflections and improve the accuracy of tracking the trajectory of the eye 200.

[0078] The number of first eye-tracking transmitting antennas 182 can be one or more. Specifically, it can be one first eye-tracking transmitting antenna 182, coupled with two, three, four, five or six first eye-tracking receiving antennas 184, or it can be two first eye-tracking transmitting antennas 182, coupled with two, three, four, five or six first eye-tracking receiving antennas 184, and so on.

[0079] The following explanation uses one first-eye tracking transmitting antenna 182 and three first-eye tracking receiving antennas 184 as an example. Figure 6 As shown, the three first eye-tracking receiving antennas 184 can be distributed at the three vertices of a triangle, which can be a right triangle. One first eye-tracking transmitting antenna 182 can be positioned on one side of the two first eye-tracking receiving antennas 184. That is, the first row of the four antennas has one first eye-tracking receiving antenna 184, and the second row has one first eye-tracking transmitting antenna 182 and two first eye-tracking receiving antennas 184, forming a 2×2 structure; or, as shown... Figure 8 As shown, one first eye-tracking transmitting antenna 182 and three first eye-tracking receiving antennas 184 are distributed at the four vertices of the quadrilateral, forming a 1×3 structure.

[0080] The number of second eye-tracking transmitting antennas 186 can be one or more. Specifically, it can be one second eye-tracking transmitting antenna 186, coupled with two, three, four, five or six second eye-tracking receiving antennas 188, or it can be two second eye-tracking transmitting antennas 186, coupled with two, three, four, five or six second eye-tracking receiving antennas 188, and so on.

[0081] The following explanation uses one second eye-tracking transmitting antenna 186 and three second eye-tracking receiving antennas 188 as an example. Figure 7 As shown, the three second eye-tracking receiving antennas 188 can be distributed at the three vertices of a triangle, which can be a right triangle. One second eye-tracking transmitting antenna 186 can be positioned on one side of the two second eye-tracking receiving antennas 188. That is, the second row of the four antennas has one second eye-tracking receiving antenna 188, one second eye-tracking transmitting antenna 186, and two second eye-tracking receiving antennas 188, forming a 2×2 structure; or, as... Figure 9 As shown, one second eye-tracking transmitting antenna 186 and three second eye-tracking receiving antennas 188 are distributed at the four vertices of the quadrilateral, forming a 1×3 structure.

[0082] As one possible implementation, the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 are millimeter-wave antennas or terahertz antennas.

[0083] Specifically, the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 are millimeter-wave antennas or terahertz antennas, thereby improving the accuracy of eye trajectory tracking 200.

[0084] Terahertz antennas have higher resolution than millimeter-wave antennas.

[0085] Furthermore, the structures of the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 may be the same or different. For example, the structures of the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 may all be chamfered rectangular patch antennas, or they may all be circular circularly polarized patch antennas or rectangular dual-fed circularly polarized antennas, etc. This application does not limit the specific form of the antenna.

[0086] Specifically, taking the first eye-tracking transmitting antenna 182, the first eye-tracking receiving antenna 184, the second eye-tracking transmitting antenna 186, and the second eye-tracking receiving antenna 188 as millimeter-wave antennas as an example, since the smart glasses 100 needs to track both eyes of the human body 300 simultaneously, and millimeter-wave penetration and spatial coverage are relatively poor, the first eye-tracking transmitting antenna 182 and the first eye-tracking receiving antenna 184 form a radar system, and the second eye-tracking transmitting antenna 186 and the second eye-tracking receiving antenna 188 form a radar system, respectively targeting the human body 300. The first eye-tracking transmitting antenna 182 can be left-handed circularly polarized, and the first eye-tracking receiving antenna 184 can be right-handed circularly polarized, or the first eye-tracking transmitting antenna 182 can be right-handed circularly polarized, and the first eye-tracking receiving antenna 184 can be left-handed circularly polarized; similarly, the second eye-tracking transmitting antenna 186 can be left-handed circularly polarized, and the second eye-tracking receiving antenna 188 can be right-handed circularly polarized, or the second eye-tracking transmitting antenna 186 can be right-handed circularly polarized, and the second eye-tracking receiving antenna 188 can be left-handed circularly polarized.

[0087] Furthermore, the polarizations of the first eye-tracking transmitting antenna 182 and the second eye-tracking transmitting antenna 186 are opposite, and the polarizations of the first eye-tracking receiving antenna 184 and the second eye-tracking receiving antenna 188 are opposite. Specifically, when the first eye-tracking transmitting antenna 182 is left-handed circularly polarized and the first eye-tracking receiving antenna 184 is right-handed circularly polarized, then the second eye-tracking transmitting antenna 186 is right-handed circularly polarized and the second eye-tracking receiving antenna 188 is left-handed circularly polarized.

[0088] Taking the first eye-tracking transmitting antenna 182 as left-hand circularly polarized, the first eye-tracking receiving antenna 184 as right-hand circularly polarized, the second eye-tracking transmitting antenna 186 as right-hand circularly polarized, and the second eye-tracking receiving antenna 188 as left-hand circularly polarized as an example, since the distance between the transmitted signal and the eyeball 200 is relatively short and the millimeter wave has the characteristic of near-linear transmission, it can be assumed that during short-distance transmission, the spatial transmission will not destroy the left-hand circularly polarized characteristic of the transmitted electromagnetic wave. When the emitted left-hand electromagnetic wave is reflected by the eyeball 200 of the human body 300, its polarization characteristic is reversed and becomes right-hand circularly polarized. In this way, the reflected right-hand circularly polarized electromagnetic wave is exactly consistent with the polarization characteristic of the first eye-tracking receiving antenna 184, which reduces the signal loss caused by polarization mismatch and can further improve the sensitivity and accuracy of recognition. Meanwhile, besides most of the reflected right-hand circularly polarized signal being received by the first eye-tracking receiving antenna 184, some of the transmitted signal, after diffuse reflection by the eyeball 200, becomes a right-hand circularly reflected wave and enters the receiving range of the second eye-tracking receiving antenna 188. However, since the second eye-tracking receiving antenna 188 is left-hand circularly polarized, it has a natural polarization isolation from the right-hand circularly polarized transmitted wave. Therefore, the right-hand circularly polarized wave reflected by this eyeball 200 will hardly interfere with the second eye-tracking receiving antenna 188 corresponding to the other eyeball 200. Similarly, the left-hand circularly polarized wave of the other eyeball 200 will also hardly interfere with the first eye-tracking receiving antenna 184, thus achieving simultaneous recognition and tracking of both eyes with low mutual interference.

[0089] In the description of this specification, references to terms such as "an embodiment" or "specific embodiment" indicate that a particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0090] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A type of smart glasses, characterized in that, include: The glasses themselves; The first eye-tracking transmitting antenna is mounted on the glasses body; A first eye-tracking receiving antenna is mounted on the glasses body and is matched with a first eye-tracking transmitting antenna. A second eye-tracking transmitting antenna is mounted on the glasses body; The second eye-tracking receiving antenna is mounted on the glasses body and is matched with the second eye-tracking transmitting antenna. Wherein, the first eye-tracking transmitting antenna and the second eye-tracking receiving antenna have the same direction of circular polarization, the second eye-tracking transmitting antenna and the first eye-tracking receiving antenna have the same direction of circular polarization, and the first eye-tracking transmitting antenna and the second eye-tracking transmitting antenna have different directions of circular polarization. The electromagnetic waves emitted by the first eye-tracking transmitting antenna are reflected and rotated, forming electromagnetic waves with a rotation direction opposite to that of the circularly polarized second eye-tracking receiving antenna. The electromagnetic waves emitted by the second eye-tracking transmitting antenna are reflected and rotated, forming electromagnetic waves with a rotation direction opposite to that of the circularly polarized first eye-tracking receiving antenna. The circular polarizations of the first eye-tracking transmitting antenna and the first eye-tracking receiving antenna have opposite directions; The circular polarization of the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna has opposite directions; The first eye-tracking transmitting antenna and the first eye-tracking receiving antenna correspond to one of the human eyes, and the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna correspond to the other of the human eyes.

2. The smart glasses according to claim 1, characterized in that, The glasses body includes: Picture frames; A first lens is disposed on the lens frame, and a first eye-tracking transmitting antenna and a first eye-tracking receiving antenna are disposed on the first lens; The second lens is disposed on the lens frame, and the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna are disposed on the second lens.

3. The smart glasses according to claim 2, characterized in that, The first eye-tracking transmitting antenna, the first eye-tracking receiving antenna, the second eye-tracking transmitting antenna, and the second eye-tracking receiving antenna are transparent.

4. The smart glasses according to claim 2, characterized in that, The first eye-tracking transmitting antenna and the first eye-tracking receiving antenna are embedded inside the first lens; The second eye-tracking transmitting antenna and the second eye-tracking receiving antenna are embedded inside the second lens.

5. The smart glasses according to claim 4, characterized in that, The first lens includes a first conductive layer, and the first eye-tracking transmitting antenna and the first eye-tracking receiving antenna are disposed on the first conductive layer; The second lens includes a second conductive layer, and the second eye-tracking transmitting antenna and the second eye-tracking receiving antenna are disposed on the second conductive layer.

6. The smart glasses according to claim 5, characterized in that, The first lens further includes a first display panel and a first upper polarizing layer, wherein the first conductive layer is located between the first display panel and the first upper polarizing layer; The second lens also includes a second display panel and a second upper polarizing layer, with the second conductive layer located between the second display panel and the second upper polarizing layer.

7. The smart glasses according to any one of claims 1 to 6, characterized in that, Also includes: The controller is mounted on the glasses body and is electrically connected to the first eye-tracking transmitting antenna, the first eye-tracking receiving antenna, the second eye-tracking transmitting antenna, and the second eye-tracking receiving antenna. Specifically, the controller determines the relative positions of the lens and vitreous humor of the eyeball based on the reflected signal received by the first eye-tracking receiving antenna, and the controller determines the relative positions of the lens and vitreous humor of the eyeball based on the reflected signal received by the second eye-tracking receiving antenna.

8. The smart glasses according to any one of claims 1 to 6, characterized in that, The number of the first eye-tracking receiving antennas is multiple, and the multiple first eye-tracking receiving antennas are distributed in an array; The number of the second eye-tracking receiving antennas is multiple, and the multiple second eye-tracking receiving antennas are distributed in an array.

9. The smart glasses according to any one of claims 1 to 6, characterized in that, The first eye-tracking transmitting antenna, the first eye-tracking receiving antenna, the second eye-tracking transmitting antenna, and the second eye-tracking receiving antenna are millimeter-wave antennas or terahertz antennas.

Images