Transparent antenna coexisting with other transparent structures in augmented reality glasses lenses
By arranging a transparent antenna film layer and a mesh metal structure on the augmented reality glasses lens to form a gap or loop antenna, the problem of space limitations and performance degradation in antenna design in small devices is solved, and efficient wireless connection is achieved.
Patent Information
- Application Number
- CN202380040113.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-08-24
- Filing Date
- 2023-05-18
- Publication Date
- 2024-12-24
AI Technical Summary
In existing wearable electronic devices such as augmented reality glasses, antenna designs face problems such as space limitations and performance degradation, especially in small-sized shape factor devices, where reduced antenna size leads to reduced performance and other electrical components are more disturbed.
The transparent antenna film layer is arranged on the lens of the augmented reality glasses. Using transparent conductive materials and mesh metal structures, the size and position of the transparent antenna film layer is adjusted to form a slot antenna or a loop antenna to reduce the radiation loss of the non-conductive layer. The electrical floating of the conductive layer is achieved through a flexible substrate directly connected to the antenna port.
It effectively improves the radiation efficiency and performance of the antenna, reduces the interference of the non-conductive layer on the antenna signal, and enhances the multi-standard wireless connection capability of the device.
Smart Images

Figure CN119183622A_ABST
Abstract
Description
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0002] This application claims priority to and the benefit of U.S. Provisional Patent Application No. 63 / 344,351, filed on May 20, 2022. Summary of the invention
[0003] According to a first aspect of the present invention, a system is provided, which includes: a support structure; at least one lens, which is mounted to the support structure; and a transparent antenna film layer, which is arranged on at least a portion of the lens, the transparent antenna film layer includes at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
[0004] Optionally, the transparent antenna film layer includes a printed transparent conductive material.
[0005] Optionally, the transparent antenna film layer includes meshed metal.
[0006] Optionally, the transparent antenna film layer is arranged on the conductive layer of the lens.
[0007] Optionally, the conductive layer of the lens comprises an active dimming layer.
[0008] Optionally, the transparent antenna film layer substantially covers the conductive layer of the lens.
[0009] Optionally, the transparent antenna film layer is directly electrically connected to the antenna port.
[0010] Optionally, the transparent antenna film layer is directly electrically connected to the antenna port through a flexible substrate.
[0011] Optionally, the lens includes a top non-conductive layer, a top active dimming layer, a liquid crystal layer and a bottom floating layer.
[0012] Optionally, the lens includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are separated by at least a specified distance.
[0013] Optionally, the second conductive layer of the lens is electrically floating at an operating frequency of the antenna.
[0014] According to another aspect of the present invention, a wearable mobile device is provided, which includes: a support structure; at least one lens, which is mounted to the support structure; and a transparent antenna film layer, which is arranged on at least a portion of the lens, the transparent antenna film layer includes at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
[0015] Optionally, the lens includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer are separated by at least a specified distance.
[0016] Optionally, the lens further comprises an intermediate non-conductive layer, which is disposed on top of the first conductive layer, and wherein the transparent antenna film layer is disposed on the intermediate non-conductive layer.
[0017] Optionally, the second conductive layer is an electrically floating layer.
[0018] Optionally, one or more impedance optimized Radio Frequency (RF) chokes are implemented to electrically float the second conductive layer at an operating frequency of the antenna.
[0019] Optionally, at least one of the thickness of the transparent antenna film layer, the size of the transparent antenna film layer, the size of the gap between the support structure and the transparent antenna film layer, or the resistivity of the active dimming layer is modified to change the antenna operating characteristics.
[0020] Optionally, the gap between the support structure and the transparent antenna film layer forms at least one of a loop antenna or a slot antenna.
[0021] Optionally, the support structure comprises a metal frame.
[0022] According to another aspect of the present invention, a manufacturing method is provided, which comprises: providing a supporting structure; disposing a transparent antenna film layer on at least a portion of a lens, the transparent antenna film layer comprising at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the supporting structure and the transparent antenna film layer; and mounting the lens having the transparent antenna film layer to the supporting structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The accompanying drawings illustrate several exemplary embodiments and are a part of the specification. Together with the following description, these drawings demonstrate and explain various principles of the present disclosure.
[0024] Figure 1 is an example embodiment of a pair of Augmented Reality (AR) glasses.
[0025] Figure 2 is an embodiment showing a pair of AR glasses and a cross-sectional view thereof.
[0026] Figure 3A and Figure 3B It is a planar cross-sectional view and a stereoscopic cross-sectional view of the frame and lens of a pair of AR glasses.
[0027] Figure 4A A schematic diagram showing the frame of a pair of AR glasses and transparent antennas on the lenses.
[0028] Figure 4B Shows Shows Figure 4A A graph of example radiation efficiency results for a transparent antenna.
[0029] Figure 5A A schematic diagram showing an alternative frame for a pair of AR glasses and transparent antennas on the lenses.
[0030] Figure 5B Shows Shows Figure 5A A graph of example radiation efficiency results for a transparent antenna.
[0031] Figure 6 A schematic diagram of a transparent antenna embodiment is shown, in which two active dimming layers are used in the lenses of a pair of AR glasses and a liquid crystal layer is used.
[0032] Figure 7 is a schematic diagram of an exemplary manufacturing method for producing an AR eyewear lens having at least one transparent antenna thereon.
[0033] Figure 8 is an illustration of exemplary augmented reality glasses that may be used in conjunction with embodiments of the present disclosure.
[0034] Fig. 9 is an illustration of an exemplary virtual reality head mounted device that can be used in conjunction with embodiments of the present disclosure.
[0035] In all drawings, the same reference numerals and descriptions represent similar but not necessarily identical elements. Although the exemplary embodiments described herein are susceptible to various modifications and alternative forms, specific embodiments have been shown by way of example in the drawings and will be described in detail herein. However, the exemplary embodiments described herein are not intended to be limited to the specific forms disclosed. Instead, the present disclosure encompasses all modifications, equivalents, and alternatives that fall within the scope of the appended claims. DETAILED DESCRIPTION
[0036] Today's mobile electronic devices implement many different types of antennas. To keep up with the development of wireless technology and the growing demand for ubiquitous wireless access, wearable electronic devices may seek to support more and more wireless standards (including 3G / 4G / 5G, WiFi, Global Positioning System (GPS), Bluetooth, Ultrawideband (UWB), etc.). In order to achieve multi-standard wireless connectivity, these wearable devices (e.g., smart watches or augmented reality (AR) glasses) can use several multi-band antennas in a small form factor.
[0037] In some cases, wearable electronic devices (e.g., AR glasses) may implement antennas in the temple arms of the glasses or in the frames of the glasses. However, due to the small form factor of the glasses, these antennas are limited in size, and where these antennas can be placed may be further limited. In addition, the design of the device, the overall weight, or other factors may lead to a shrinking form factor with reduced size and thickness. This form factor may even result in less space left for different types of antennas. In this case, the antenna may need to be further reduced in size, which in turn may reduce the performance of the antenna. In addition, in a small form factor device, other electrical and mechanical components may interfere with the operation of the various antennas.
[0038] Some embodiments may attempt to place the antenna on the lens of the augmented reality glasses. In fact, the lens may be the largest component on a pair of augmented reality glasses. Placing the antenna on the lens glasses can provide additional volume for the antenna. In addition, the lens can have an additional amount of separation or gap from the user's body (for example, from their eyes or head). This can reduce the impact of the body on antenna signal degradation. In the case where the antenna is implemented on the lens of the augmented reality glasses, the antenna can use a transparent conductive material as the radiating element of the antenna. Because the material is transparent, the material will not block the user's line of sight through the lens.
[0039] However, despite this, it may be difficult to design a transparent antenna on the lens of augmented reality glasses. For example, the lens of the augmented reality glasses may already have other transparent structures. For example, the lens may have a display layer, an optical waveguide, an active dimming layer (visible light control layer), a micro light emitting diode (LED), a prescription lens, or other optical components or electronic components. In some cases, one or more of these transparent layers can be used as an antenna element with a decoupled structure. Nevertheless, some of these transparent layers may have a high sheet resistance (e.g., greater than 10 ohms / square), which makes these layers unable to be used as radiating elements of the antenna.
[0040] For example, the lens may include two transparent lossy conductive layers (e.g., Indium Tin Oxide (ITO) layers) with an active dimming layer (e.g., a liquid crystal layer) sandwiched between the two transparent lossy conductive layers to control the amount of dimming provided by the lens. For example, the active dimming layer may include a liquid crystal layer, such as a polymer-dispersed liquid crystal (PDLC) layer or a guest-host liquid crystal (GHLC) layer. Each of these liquid crystal active dimming layers is sandwiched between two layers of ITO. In some cases, these transparent active dimming layers may absorb some of the radiation of the antenna and may cause a severe degradation of the radiation performance of the antenna.
[0041] In embodiments of the present invention, antennas can be arranged on augmented reality glasses lenses without substantially increasing the antenna's losses due to other (potentially transparent) structures in the lens. In general, this can be achieved in a variety of ways, including one or more of the following: 1) adding a conductive transparent antenna layer close to other transparent layers (e.g., an active dimming layer), 2) using ITO or using a mesh metal structure (ITO or a mesh metal structure can have a higher sheet resistance (e.g., <10 ohms / square) compared to other lossy transparent layers) to produce the transparent antenna layer, 3) enlarging the size of the transparent antenna layer to match or even be larger than the size of other lossy transparent layers or non-conductive transparent layers to reduce radiation losses due to the non-conductive layer, 4) connecting the transparent antenna layer directly to the antenna port through a flexible substrate (e.g., a coaxial cable) while the lossy transparent layer remains floating at the operating frequency of the antenna (e.g., a high impedance component (e.g., a radio frequency (RF) choke) can be implemented to make the lossy transparent layer float at the RF frequency), and 5) coupling the lossy transparent structure to the conductive transparent antenna layer when the transparent antenna is operating. Since, at least in some embodiments, the conductive antenna layer can be a larger contributor to the antenna radiation, the size of the transparent conductive antenna layer can be equal to or larger than the size of at least one of the lossy layers. Figures 1 to 9 These embodiments are further described.
[0042] Features from any of the embodiments described herein may be used in combination with each other according to the general principles described herein. These and other embodiments, features and advantages will be more fully understood after reading the following detailed description in conjunction with the accompanying drawings and claims.
[0043] Figure 1 An embodiment of a wearable electronic device 100 is shown. Figure 1As shown, the wearable electronic device 100 may be a pair of augmented reality glasses. In other embodiments, the wearable electronic device may be a virtual reality headset or a smart watch, or may be some other type of mobile electronic device that implements active dimming or implements a display portion that includes at least one layer of conductive material. Figure 1 In an example embodiment of the present invention, augmented reality (AR) glasses may include a structural frame 101 and two lenses 102, one or more of which may include an antenna 103 disposed nearby. The lenses may include an active dimming layer including a coating of a transparent conductive oxide (TCO) (e.g., indium tin oxide (ITO) or some other type of TCO).
[0044] TCO materials can be poor conductors of electricity and are generally referred to herein as poor conductors or poor conductive materials. It should be appreciated that when the terms "poor conductor" or "poor conductive material" are used herein, these terms can refer to materials that have at least some conductivity but are very poor conductors. Therefore, poor conductive materials can cover materials with a conductivity greater than zero but very low. Therefore, poor conductive materials can refer to any material that can impair antenna performance by absorbing the radiated power of the antenna. In fact, at least some of the embodiments herein can be designed to offset or reduce coupling that may occur between an active dimming layer, an antenna (e.g., 103), or other types of conductive lens layers.
[0045] Figure 2 An embodiment of a pair of AR glasses 200 is shown that includes a frame 201 and a plurality of lenses 203. The lenses of the AR glasses 200 may include an optical system that projects or otherwise displays a digital image visible to the wearer of the AR glasses. In some cases, the lenses may include one or more active dimming layers. The active dimming layers may include liquid crystals or other materials that react to changes in applied voltage. These reactions may change the amount of light allowed to flow through the active dimming layers and reach the wearer's eyes. As described above, the active dimming layers may include TCO coatings (e.g., indium tin oxide). These TCOs may be partially conductive and may absorb radiated signals from nearby antennas.
[0046] like Figure 2As shown, as indicated by the cross section 202, the frame 201 of the AR glasses 200 can be a metal (or other conductive) frame. The metal frame 201 can surround one or more transparent active dimming layers 204. In some embodiments, as will be further described below, a transparent antenna film layer can be applied to the transparent active dimming layer 204. The transparent antenna film layer can cover most of the lens 203, but a gap 206 can be left between the antenna film layer and the metal frame 201. In this case, the transparent antenna film layer can be driven (for example, via the antenna feed 205) or directly excited to radiate a signal at a specified frequency, and the gap 206 can act as a slot antenna or a loop antenna, where the radiated energy moves to the edge of the antenna film layer (for example, near the gap 206) and diverges from the edge to the surrounding environment. Therefore, in this way, a slot antenna or a loop antenna can be formed between the transparent antenna film layer and the frame of the AR glasses 200. The following will be combined with Figures 3A to 6 The antenna is further described.
[0047] Figure 3A An embodiment 300A of a frame 301 and a lens with a transparent antenna film layer 302 is shown. The frame 301 can be made of metal or other conductive materials. The frame can be configured to accommodate multiple lenses (e.g., Figure 2 203). Each lens may include a transparent antenna film layer 302 made of some type of transparent metal or transparent conductive film. Such a transparent conductive film may be optically transparent and may be conductive. These transparent conductive films may include indium tin oxide or other TCOs, conductive polymers, carbon nanotubes, metal grids, graphene, nanowire meshes, ultra-thin metal films, or other similar materials or combinations thereof. The transparent antenna film layer may include one or more antennas and may be fed via an antenna feed 304.
[0048] At least in some cases, the transparent antenna film layer 302 can be spread over all parts except a small part of the lens. This small part can be uniform or substantially uniform around the edge of the lens. The portion lacking the transparent antenna film layer 302 can form a gap 303 between the transparent antenna film layer and the frame 301. The gap 303 can provide enough space to ensure that the current from the antenna feed 304 travels to the edge of the transparent antenna film layer 302, and a slot antenna or a loop antenna is formed between the edge of the transparent antenna film layer and the conductive frame 301. In this case, the transparent antenna film layer 302 can be driven by the antenna feed, and can therefore be directly excited to radiate as an antenna. The slot antenna or loop antenna can be configured to send and / or receive wireless signals through the antenna feed and associated components (e.g., tuners, amplifiers, impedance matching circuits, signal processors, etc.). Figure 3A A perspective view of the cross section shown in Figure 3BThe perspective view shows a gap 303 formed between the transparent antenna film layer 302 and the conductive frame 301 .
[0049] Figure 4A An embodiment of a side cross-sectional view of a frame and lens is shown. Frame 401 can provide a support structure for lens 406 and potentially other electronic and / or mechanical components. Frame 401 can be made of a conductive material (e.g., metal) and can include electrical connections to at least one layer of lens 406 (e.g., antenna feed 402). Figure 4A In an embodiment of the present invention, the lens 406 may include a plurality of layers including a transparent antenna film layer 404 disposed on at least a portion of the lens. The lens 406 may also include an active dimming layer 405, which may be made of a liquid crystal or other active dimming element that darkens or brightens in response to a voltage change. Further, the lens 406 may include a bottom transparent film layer 407, which may be made of a TCO material (e.g., indium tin oxide (ITO)). The bottom transparent film layer may be electrically floating relative to the top layer 404 and relative to the metal frame 401. The transparent antenna film layer 404 may include an antenna, or it may itself be excited as an antenna. Arranging the transparent antenna film layer 404 on the lens 406 may form a gap 403 between the metal frame 401 and the transparent antenna film layer 404. The gap may surround the outer portion of the lens, and may produce a slot antenna or a loop antenna that operates by concentrating the current on the outer portion of the lens on the transparent antenna film layer 404.
[0050] In some embodiments, the resistivity of the transparent antenna film layer 404 can be set to a specified amount. For example, the resistivity of the transparent antenna film layer 404 can be manufactured or produced to be 10 ohms / square. In other cases, the transparent antenna film layer 404 can be manufactured to be 100 ohms / square. Figure 4B 410 in FIG. 410 shows an embodiment where the measured radiation efficiency increases based on the resistivity level of the transparent antenna film layer 404. Line 411 represents the potential radiation efficiency (y-axis) between 0 and 10 GHz (x-axis) when the transparent antenna film layer 404 is at 10 ohms / square. Line 412 represents the potential radiation efficiency when the transparent antenna film layer 404 is at 100 ohms / square (as indicated in legend 413). It can be seen that the transparent antenna film layer 404 with a lower resistivity has a higher radiation efficiency (in decibels (dB)) over the entire frequency range. Therefore, in different embodiments, the resistivity level of the transparent antenna film layer 404 can be changed to provide a desired radiation efficiency output.
[0051] Figure 5AAn embodiment of a cross section of a frame 501 (e.g., a metal frame or other conductive frame of a pair of AR glasses) and a lens 509 is shown. The lens may include a plurality of different sections or layers, including a transparent antenna film layer 504, a non-conductive layer 505 of plastic or glass, an intermediate transparent film layer 506 that may be made of a TCO material (e.g., ITO) and may include a transparent antenna, an active dimming layer 507, and a floating transparent film layer 508 that may also be made of a TCO material. The transparent antenna film layer 504 may include an antenna, or it may itself be excited as an antenna. Arranging the transparent antenna film layer 504 on the lens 509 may form a gap 503 between the metal frame 501 and the transparent antenna film layer 504. The gap 503 may cover (or may substantially cover) an outer portion of the lens 509. By covering all but a portion of the lens with a transparent antenna film, the gap 503 between the conductive frame 501 and the transparent antenna film layer 504 can produce a slot antenna or a loop antenna that operates by concentrating current on the outer portion of the lens 509 on the transparent antenna film layer 504.
[0052] In at least some cases, the resistivity of the transparent antenna film layer 504 can be set or adjusted to a specified amount (e.g., 1 ohm / square, 2 ohm / square, 3 ohm / square, 5 ohm / square, 10 ohm / square, 20 ohm / square, 50 ohm / square, etc.). The resistivity of the intermediate transparent film layer 506 can also be set or adjusted to a specified amount (e.g., 75 ohm / square, 100 ohm / square, 150 ohm / square, etc.). Figure 5B Graph 510 in FIG. 5 may indicate the radiation efficiency of a transparent antenna at different gap sizes. As indicated by graph 513, the radiation efficiency (512) of a transparent antenna having a 0.1 mm gap may be lower (advantageously) than the radiation efficiency (511) of a system including a larger gap of 3 mm. Thus, at least in some embodiments, a larger gap size may be implemented to provide a higher radiation efficiency for the transparent antenna.
[0053] In some embodiments, the transparent antenna film layer (e.g., 504) may be a printed transparent conductive material. The printed transparent conductive material may be applied using any of a variety of different manufacturing methods for printing materials onto glass or plastic. In some cases, the transparent antenna film layer may be an ultra-thin mesh metal that is transparent to the human eye. In some examples, as described above, the transparent antenna film layer may be disposed on the conductive layer of the lens. For example, the conductive layer of the lens may be an active dimming layer that may include a layer of TCO material or multiple layers of TCO material. The conductive transparent antenna film layer may cover a portion or all of the conductive layer of the lens, thereby leaving a gap between the transparent antenna film layer and the conductive frame of the AR glasses. The conductive transparent antenna film layer may be connected to an antenna feed, which may be configured to excite the antenna film layer and cause the antenna film layer to radiate as an antenna.
[0054] In some cases, such as Figure 5A As shown, the transparent antenna film layer 504 can be directly electrically connected to the antenna port 502. In some examples, this direct connection to the antenna port can be provided by a flexible substrate (e.g., a coaxial cable). As described above, Figure 5A The lens 509 may include a transparent antenna film layer 504, a non-conductive layer 505 at the top, a transparent film layer 506 in the middle, a liquid crystal layer 507, and a floating layer 508 at the bottom. In this case, the lens may include multiple conductive layers separated by at least a specified distance (e.g., 100 μm, 150 μm, 200 μm, etc.). The second conductive layer of the lens may be electrically floating at the operating frequency of the antenna. The electrically floating layer may provide enhanced radiation efficiency for the antenna at the operating frequency of the antenna.
[0055] Figure 6An alternative embodiment of a conductive frame 601 and a lens 611 is shown. The lens 611 may include multiple layers (605 to 609) and may be connected to the frame 601 in various ways. For example, the lens may be held in position relative to the frame via a rubber ring 604 or via other non-conductive fastening mechanisms. In some cases, the capacitance between the bottom plastic or glass layer 609 and the conductive frame 601 may be determined, as indicated by a circle 610. The capacitance may then be varied to impart specific characteristics to the transparent antenna. In fact, the lens 611 may include one or more transparent film layers 606 and 608. Either or both of these transparent film layers 606 / 608 may include a transparent antenna. These transparent film layers 606 / 608 may be sandwiched with an active dimming layer 607, which may include liquid crystal or other active dimming materials. The transparent film layers 606 / 608 may be connected via isolated jumper pins 603, which may connect the two layers when desired. The top transparent film layer 606 may be connected to the frame 601 via the flexible connector 602 or via some other type of electrical connector.
[0056] In some cases, Figure 6 The system shown in FIG. 4 can be a pair of AR glasses (e.g., Figure 1 100) or a part of a wearable mobile device such as a virtual reality head-mounted device. In this case, the wearable mobile device may include a support structure (e.g., 601), at least one lens (e.g., 611) mounted to the support structure, and a transparent antenna film layer (e.g., 606 or 608) disposed on at least a portion of the lens. In this case, the transparent antenna film layer may include at least one antenna. The transparent antenna film layer may be arranged to form a gap 612 between the support structure and the transparent antenna film layer. The lens 611 may include a first conductive layer (e.g., 606) and a second conductive layer (e.g., 608) separated by a specified distance. The distance may include a layer of active dimming material (e.g., 607). The lens may also include an intermediate non-conductive layer (e.g., 605) disposed on top of the first conductive layer and an intermediate non-conductive layer (e.g., 608) disposed on the bottom of the second conductive layer. The transparent antenna film layer 606 and / or 608 may be disposed on the top or bottom of these intermediate non-conductive layers 605 / 609.
[0057] In some cases, the second conductive layer 608 can be an electrically floating layer designed to float at the operating frequency of one or more transparent antennas of the first conductive layer 606. In this case, one or more impedance-optimized radio frequency (RF) chokes can be implemented to electrically float the second conductive layer 608 at the operating frequency of the antenna. Additionally or alternatively, various parameters or characteristics associated with the wearable device can be modified to change the operating characteristics of the transparent antenna. For example, any one or more of the following can be changed, including: the thickness of one or more transparent antenna film layers, the size of one or more transparent antenna film layers, the size of the gap between the support structure and the transparent antenna film layer, or the resistivity of the active dimming layer. Any one or more of these characteristics or parameters can be modified to change the operating characteristics of the antenna (including radiation efficiency, total radiated power, antenna impedance, etc.).
[0058] Figure 7 is a flow chart of a manufacturing method 700 for producing or manufacturing a wearable electronic device (e.g., AR glasses) that includes at least one lens having a transparent antenna disposed thereon. Figure 7 The steps shown may be performed by any suitable manufacturing equipment and may be controlled using any suitable computer-executable code and / or computing system.
[0059] Figure 7 The manufacturing method may include: at step 710, providing, creating or generating a support structure (e.g., a conductive frame). Next, the manufacturing method may include: at step 720, disposing a transparent antenna film layer on at least a portion of the lens. The transparent antenna film layer may include at least one antenna. The transparent antenna film layer may be arranged to form a gap between the support structure and the transparent antenna film layer, so that the gap acts as a slot antenna or a loop antenna. In addition, at step 730, the manufacturing method 700 may include mounting a lens with a transparent antenna film layer to a support structure. In this way, the manufacturing method 700 can produce AR glasses, VR head-mounted devices, or other artificial reality devices that may include a transparent antenna film layer. By arranging the antenna on the AR glasses lens or other similar locations, the antenna can be moved out of the frame of these devices, thereby providing space that can be used by other electronic components and mechanical components.
[0060] Example Embodiments
[0061] Example 1: A system may include: a support structure; at least one lens, which is mounted to the support structure; and a transparent antenna film layer, which is disposed on at least a portion of the lens, the transparent antenna film layer including at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
[0062] Example 2: The system according to Example 1, wherein the transparent antenna film layer comprises a printed transparent conductive material.
[0063] Example 3: The system of Example 1 or 2, wherein the transparent antenna film layer comprises mesh metal.
[0064] Example 4: A system according to any one of Examples 1 to 3, wherein the transparent antenna film layer is disposed on the conductive layer of the lens.
[0065] Example 5: A system according to any one of Examples 1 to 4, wherein the conductive layer of the lens includes an active dimming layer.
[0066] Example 6: A system according to any one of Examples 1 to 5, wherein the transparent antenna film layer substantially covers the conductive layer of the lens.
[0067] Example 7: A system according to any one of Examples 1 to 6, wherein the transparent antenna film layer is directly electrically connected to the antenna port.
[0068] Example 8: A system according to any one of Examples 1 to 7, wherein the transparent antenna film layer is directly electrically connected to the antenna port through a flexible substrate.
[0069] Example 9: A system according to any of Examples 1 to 8, wherein the lens includes a top non-conductive layer, a top active dimming layer, a liquid crystal layer, and a bottom floating layer.
[0070] Example 10: A system according to any of Examples 1 to 9, wherein the lens includes a first conductive layer and a second conductive layer, and the first conductive layer and the second conductive layer are separated by at least a specified distance.
[0071] Example 11: A system according to any of Examples 1 to 10, wherein the second conductive layer of the lens is electrically floating at the operating frequency of the antenna.
[0072] Example 12: A wearable mobile device includes: a support structure; at least one lens, which is mounted to the support structure; and a transparent antenna film layer, which is disposed on at least a portion of the lens, the transparent antenna film layer includes at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
[0073] Example 13: The wearable mobile device of Example 12, wherein the lens comprises a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer being separated by at least a specified distance.
[0074] Example 14: A wearable mobile device according to Example 12 or 13, wherein the lens also includes an intermediate non-conductive layer, which is arranged on top of the first conductive layer, and wherein the transparent antenna film layer is arranged on the intermediate non-conductive layer.
[0075] Example 15: A wearable mobile device according to any one of Examples 12 to 14, wherein the second conductive layer is an electrically floating layer.
[0076] Example 16: A wearable mobile device according to any of Examples 12 to 15, wherein one or more impedance optimized radio frequency (RF) chokes are implemented to electrically float the second conductive layer at an operating frequency of the antenna.
[0077] Example 17: A wearable mobile device according to any one of Examples 12 to 16, wherein at least one of the thickness of the transparent antenna film layer, the size of the transparent antenna film layer, the size of the gap between the support structure and the transparent antenna film layer, or the resistivity of the active dimming layer is modified to change the antenna operating characteristics.
[0078] Example 18: A wearable mobile device according to any one of Examples 12 to 17, wherein the gap between the support structure and the transparent antenna film layer forms at least one of a loop antenna or a slot antenna.
[0079] Example 19: A wearable mobile device according to any one of Examples 12 to 18, wherein the support structure includes a metal frame.
[0080] Example 20: A manufacturing method includes: providing a support structure; disposing a transparent antenna film layer on at least a portion of a lens, the transparent antenna film layer including at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer; and mounting the lens having the transparent antenna film layer to the support structure.
[0081] Embodiments of the present disclosure may include various types of artificial reality systems, or be implemented in combination with various types of artificial reality systems. Artificial reality is a form of reality that has been adjusted in some way before being presented to a user, and artificial reality may include, for example, virtual reality, augmented reality, mixed reality (mixed reality or hybrid reality), or some combination and / or derivative thereof. Artificial reality content may include content generated entirely by a computer or computer-generated content combined with collected (e.g., real-world) content. Artificial reality content may include video, audio, tactile feedback, or some combination thereof, any of which may be presented in a single channel or in multiple channels (e.g., stereoscopic video that produces a three-dimensional (3D) effect to the viewer). In addition, in some embodiments, artificial reality may also be associated with applications, products, accessories, services, or some combination thereof, which are used, for example, to create content in artificial reality and / or otherwise used in artificial reality (e.g., performing activities in artificial reality).
[0082] Artificial reality systems can be implemented in a variety of different form factors and configurations. Some artificial reality systems can be designed to work without a near-eye display (NED). Other artificial reality systems can include a NED that also provides visibility to the real world (e.g., Figure 8 ) or an NED that visually immerses a user in an artificial reality (e.g., Fig. 9 900 in the virtual reality system 900). Although some artificial reality devices may be stand-alone systems, other artificial reality devices may communicate and / or coordinate with external devices to provide an artificial reality experience to a user. Examples of such external devices include handheld controllers, mobile devices, desktop computers, devices worn by a user, devices worn by one or more other users, and / or any other suitable external system.
[0083] Go to Figure 8 , the augmented reality system 800 may include an eyewear device 802 having a frame 810 configured to hold a left display device 815(A) and a right display device 815(B) in front of the user's eyes. The display devices 815(A) and 815(B) may function together or independently to present an image or a series of images to the user. Although the augmented reality system 800 includes two displays, embodiments of the present disclosure may be implemented in an augmented reality system having a single NED or more than two NEDs.
[0084] In some embodiments, the augmented reality system 800 may include one or more sensors, such as sensor 840. Sensor 840 may generate measurement signals in response to the movement of the augmented reality system 800 and may be located on substantially any portion of the frame 810. Sensor 840 may represent one or more of a variety of different sensing mechanisms, such as a position sensor, an inertial measurement unit (IMU), a depth camera assembly, a structured light emitter and / or detector, or any combination thereof. In some embodiments, the augmented reality system 800 may or may not include sensor 840, or may include more than one sensor. In embodiments where sensor 840 includes an IMU, the IMU may generate calibration data based on the measurement signals from sensor 840. Examples of sensor 840 may include, but are not limited to, accelerometers, gyroscopes, magnetometers, other suitable types of sensors that detect movement, sensors for error correction of IMUs, or some combination thereof.
[0085] In some examples, the augmented reality system 800 may also include a microphone array having a plurality of acoustic transducers 820(A) to 820(J) (collectively referred to as acoustic transducers 820). The acoustic transducers 820 may represent transducers that detect changes in air pressure caused by sound waves. Each acoustic transducer 820 may be configured to detect sound and convert the detected sound into an electronic format (e.g., an analog format or a digital format). Figure 8 The microphone array in can include, for example, ten acoustic transducers: 820(A) and 820(B), which can be designed to be placed in the corresponding ears of the user; acoustic transducers 820(C), 820(D), 820(E), 820(F), 820(G) and 820(H), which can be located at various positions on the frame 810; and / or acoustic transducers 820(I) and 820(J), which can be located on the corresponding neckband 805.
[0086] In some embodiments, one or more of acoustic transducers 820(A) to 820(J) may be used as an output transducer (e.g., a speaker). For example, acoustic transducers 820(A) and / or 820(B) may be earbuds, or any other suitable type of earphone or speaker.
[0087] The configuration of the acoustic transducer 820 of the microphone array may vary. Figure 8820, but the number of acoustic transducers 820 can be more or less than ten. In some embodiments, the use of a greater number of acoustic transducers 820 can increase the amount of audio information collected and / or the sensitivity and accuracy of the audio information. In contrast, the use of a smaller number of acoustic transducers 820 can reduce the computing power required for the associated controller 850 to process the collected audio information. In addition, the position of each acoustic transducer 820 of the microphone array can vary. For example, the position of the acoustic transducer 820 can include a defined position on the user, a defined coordinate on the frame 810, an orientation associated with each acoustic transducer 820, or some combination thereof.
[0088] Acoustic transducers 820 (A) and 820 (B) can be located on different parts of the user's ear, such as behind the pinna, behind the tragus, and / or in the auricle or ear cavity. Alternatively, in addition to the acoustic transducer 820 in the ear canal, additional acoustic transducers 820 can also be present on or around the ear. Having an acoustic transducer 820 located near the user's ear canal can enable the microphone array to collect information about how sound reaches the ear canal. By positioning at least two acoustic transducers 820 on both sides of the user's head (e.g., as binaural microphones), the augmented reality system 800 can simulate binaural hearing and collect a 3D stereo field around the user's head. In some embodiments, the acoustic transducers 820 (A) and 820 (B) can be connected to the augmented reality system 800 via a wired connection 830, while in other embodiments, the acoustic transducers 820 (A) and 820 (B) can be connected to the augmented reality system 800 via a wireless connection (e.g., a Bluetooth connection). In other embodiments, acoustic transducers 820 (A) and 820 (B) may not be used in conjunction with augmented reality system 800 at all.
[0089] The acoustic transducers 820 on the frame 810 can be positioned in a variety of different ways, including along the length of the temples, across the bridge, above or below the display devices 815(A) and 815(B), or some combination thereof. The acoustic transducers 820 can also be oriented so that the microphone array can detect sounds from a wide range of directions around the user wearing the augmented reality system 800. In some embodiments, an optimization process can be performed during the manufacture of the augmented reality system 800 to determine the relative positioning of each acoustic transducer 820 in the microphone array.
[0090] In some examples, the augmented reality system 800 may include or may be connected to an external device (e.g., a paired device), such as a neckband 805. The neckband 805 generally represents any type or form of paired device. Therefore, the discussion below on the neckband 805 may also be applied to various other paired devices, such as charging boxes, smart watches, smart phones, wristbands, other wearable devices, handheld controllers, tablet computers, laptop computers, other external computing devices, etc.
[0091] As shown, the neckband 805 can be coupled to the eye-wear device 802 via one or more connectors. These connectors can be wired or wireless and can include electrical components and / or non-electrical components (e.g., structural components). In some cases, the eye-wear device 802 and the neckband 805 can operate independently without any wired or wireless connection between them. Although Figure 8 Components of the eye-wear device 802 and components of the neckband 805 are shown located in example locations on the eye-wear device 802 and the neckband 805, but these components can be located in other locations on the eye-wear device 802 and / or the neckband 805 and / or distributed in different ways on the eye-wear device 802 and / or the neckband 805. In some embodiments, components of the eye-wear device 802 and components of the neckband 805 can be located on one or more additional peripheral devices that are paired with the eye-wear device 802, the neckband 805, or some combination thereof.
[0092] Pairing an external device, such as a neckband 805, with an augmented reality eyewear device can enable the eyewear device to achieve the form factor of a pair of glasses and still provide sufficient battery power and computing power for the expanded capabilities. Some or all of the battery power, computing resources, and / or additional features of the augmented reality system 800 can be provided by a paired device, or shared between a paired device and the eyewear device, thereby reducing the weight, heat distribution, and form factor of the eyewear device as a whole, while still retaining the desired functionality. For example, the neckband 805 can allow components that were originally included on the eyewear device to be included in the neckband 805, because the user can bear a heavier weight load on their shoulders than the user bears on their head. The neckband 805 can also have a larger surface area to diffuse and disperse heat to the surrounding environment through the larger surface area. Thus, the neckband 805 can allow for greater battery power and computing power than would otherwise be possible on a standalone eyewear device. Because the weight carried in the neckband 805 can be less invasive to the user than the weight carried in the eye-wearing device 802, the user can tolerate wearing a lighter eye-wearing device and carrying or wearing a paired device for a longer period of time than the user can tolerate wearing a heavy stand-alone eye-wearing device, thereby enabling the user to more fully integrate the artificial reality environment into their daily activities.
[0093] The neck strap 805 can be communicatively coupled to the eyewear device 802 and / or other devices. These other devices can provide certain functions (e.g., tracking, positioning, depth map construction, processing, storage, etc.) for the augmented reality system 800. Figure 8 In an embodiment of the present invention, the neckband 805 may include two acoustic transducers (e.g., 820 (I) and 820 (J)), which are part of the microphone array (or potentially form their own microphone sub-array). The neckband 805 may also include a controller 825 and a power supply 835.
[0094] The acoustic transducers 820(I) and 820(J) of the neckband 805 may be configured to detect sound and convert the detected sound into an electronic format (analog or digital). Figure 8In an embodiment of the present invention, acoustic transducers 820(I) and 820(J) can be positioned on the neckband 805, thereby increasing the distance between the acoustic transducers 820(I) and 820(J) of the neckband and other acoustic transducers 820 positioned on the eye-wear device 802. In some cases, increasing the distance between the acoustic transducers 820 of the microphone array can improve the accuracy of beamforming performed via the microphone array. For example, if acoustic transducers 820(C) and 820(D) detect a sound, and the distance between acoustic transducers 820(C) and 820(D) is greater than, for example, the distance between acoustic transducers 820(D) and 820(E), the determined source location of the detected sound can be more accurate than the source location of the detected sound when the sound is detected by acoustic transducers 820(D) and 820(E).
[0095] The controller 825 of the neckband 805 can process information generated by sensors on the neckband 805 and / or on the augmented reality system 800. For example, the controller 825 can process information from the microphone array that describes the sound detected by the microphone array. For each detected sound, the controller 825 can perform a Direction-Of-Arrival (DOA) estimate to estimate the direction from which the detected sound arrives at the microphone array. When the microphone array detects a sound, the controller 825 can fill the audio data set with this information. In an embodiment where the augmented reality system 800 includes an inertial measurement unit, the controller 825 can calculate all inertial and spatial operations based on the IMU located on the eye-wearing device 802. The connector can transmit information between the augmented reality system 800 and the neckband 805 and between the augmented reality system 800 and the controller 825. The information can be in the form of optical data, electronic data, wireless data, or any other transmittable data form. Moving the processing of information generated by the augmented reality system 800 to the neck strap 805 can reduce the weight and heat of the eye-wearing device 802, making the eye-wearing device more comfortable for the user.
[0096] The power supply 835 in the neckband 805 can provide power to the eye-wearing device 802 and / or the neckband 805. The power supply 835 can include, but is not limited to, lithium-ion batteries, lithium polymer batteries, disposable lithium batteries, alkaline batteries, or any other form of power storage device. In some cases, the power supply 835 can be a wired power supply. Including the power supply 835 on the neckband 805 instead of on the eye-wearing device 802 can help better distribute the weight and heat generated by the power supply 835.
[0097] As mentioned, some artificial reality systems can substantially replace one or more of a user's sensory perceptions of the real world with a virtual experience, rather than mixing the artificial reality with the actual reality. An example of this type of system is a head-mounted display system that largely or completely covers the user's field of view, such as Fig. 9 900 in the virtual reality system. The virtual reality system 900 may include a front rigid body 902 and a strap 904 that is shaped to fit around the user's head. The virtual reality system 900 may also include output audio converters 906 (A) and 906 (B). In addition, although Fig. 9 Not shown, but the front rigid body 902 may include one or more electronic components, including one or more electronic displays, one or more inertial measurement units (IMUs), one or more tracking transmitters or detectors, and / or any other suitable device or system for creating an artificial reality experience.
[0098] Artificial reality systems may include various types of visual feedback mechanisms. For example, the display device in the augmented reality system 800 and / or the display device in the virtual reality system 900 may include one or more liquid crystal displays (LCD), light emitting diodes (LED) displays, micro LED displays, organic LED (OLED) displays, digital light projectors (DLP) micro displays, liquid crystal on silicon (LCoS) micro displays, and / or any other suitable type of display screen. These artificial reality systems may include a single display screen for both eyes, or a display screen may be provided for each eye, which may allow additional flexibility for zoom adjustment or correction of the user's refractive error. Some of these artificial reality systems may also include an optical subsystem having one or more lenses (e.g., concave or convex lenses, Fresnel lenses, adjustable liquid lenses, etc.), through which the user can view the display screen. These optical subsystems can be used for a variety of purposes, including collimating light (e.g., making an object appear to be at a greater distance than it is physically at), magnifying light (e.g., making an object appear larger than its actual size), and / or relaying light (e.g., relaying light to a viewer's eye). These optical subsystems can be used in a direct-view architecture (e.g., a single lens configuration that directly collimates light but causes so-called pincushion distortion) and / or a non-direct-view architecture (e.g., a multi-lens configuration that produces so-called barrel distortion to eliminate pincushion distortion).
[0099] In addition to or in lieu of using a display screen, some of the artificial reality systems described herein may include one or more projection systems. For example, a display device in the augmented reality system 800 and / or a display device in the virtual reality system 900 may include a micro-LED projector that projects light (using, for example, a waveguide) into the display device, such as a transparent combiner lens that allows ambient light to pass through. The display device may refract the projected light toward the user's pupil, and may enable the user to view both the artificial reality content and the real world simultaneously. The display device may achieve this using any of a variety of different optical components, including waveguide components (e.g., holographic waveguide elements, planar waveguide elements, diffractive waveguide elements, polarizing waveguide elements, and / or reflective waveguide elements), light manipulation surfaces and elements (such as diffractive elements and gratings, reflective elements and gratings, and refractive elements and gratings), coupling elements, and the like. The artificial reality system may also be configured with any other suitable type or form of image projection system, such as a retinal projector used in a virtual retinal display.
[0100] The artificial reality systems described herein may also include various types of computer vision components and subsystems. For example, the augmented reality system 800 and / or the virtual reality system 900 may include one or more optical sensors, such as a two-dimensional (2D) camera or a 3D camera, a structured light emitter and detector, a time-of-flight depth sensor, a single beam rangefinder or a scanning laser rangefinder, a 3D laser radar (LiDAR) sensor, and / or any other suitable type or form of optical sensor. The artificial reality system may process data from one or more of these sensors to identify the user's location, map the real world, provide the user with content about the real-world surroundings, and / or perform various other functions.
[0101] The artificial reality system described herein may also include one or more input audio converters and / or output audio converters. The output audio converter may include a voice coil speaker, a ribbon speaker, an electrostatic speaker, a piezoelectric speaker, a bone conduction converter, a cartilage conduction converter, an ear tragus vibration converter, and / or any other suitable type or form of audio converter. Similarly, the input audio converter may include a condenser microphone, a dynamic microphone, a ribbon microphone, and / or any other type or form of input converter. In some embodiments, a single converter may be used for both audio input and audio output.
[0102] In some embodiments, the artificial reality systems described herein may also include tactile (i.e., haptic) feedback systems that may be incorporated into headwear, gloves, clothing, handheld controllers, environmental devices (e.g., chairs, floor mats, etc.), and / or any other type of device or system. The tactile feedback system may provide various types of skin feedback including vibration, force, traction, texture, and / or temperature. The tactile feedback system may also provide various types of kinesthetic feedback, such as motion and compliance. Tactile feedback may be implemented using motors, piezoelectric actuators, fluid systems, and / or various other types of feedback mechanisms. The tactile feedback system may be implemented independently of other artificial reality devices, within other artificial reality devices, and / or in combination with other artificial reality devices.
[0103] By providing tactile perception, auditory content, and / or visual content, artificial reality systems can create a complete virtual experience or enhance the user's real-world experience in various situations and environments. For example, an artificial reality system can assist or expand a user's perception, memory, or cognition in a specific environment. Some systems can enhance the user's interaction with other people in the real world, or can achieve a more immersive interaction with other people in the virtual world. Artificial reality systems can also be used for educational purposes (e.g., for teaching or training in schools, hospitals, government organizations, military organizations, commercial enterprises, etc.), entertainment purposes (e.g., for playing video games, listening to music, watching video content, etc.), and / or for access purposes (e.g., as hearing aids, visual aids, etc.). The embodiments disclosed herein can implement or enhance the user's artificial reality experience in one or more of these situations and environments and / or in other situations and environments.
[0104] As detailed above, the computing devices and systems described and / or illustrated herein broadly represent any type or form of computing device or system capable of executing computer-readable instructions (e.g., instructions contained in the modules described herein). In its most basic configuration, these computing devices can each include at least one memory device and at least one physical processor.
[0105] In some examples, the term "memory device" generally refers to any type or form of volatile or non-volatile storage device or medium capable of storing data and / or computer-readable instructions. In one example, a memory device can store, load and / or maintain one or more modules in these modules described herein. Examples of memory devices include, but are not limited to, random access memory (Random Access Memory, RAM), read-only memory (Read Only Memory, ROM), flash memory, hard disk drive (Hard Disk Drive, HDD), solid-state drive (Solid-State Drive, SSD), optical disk drive, cache memory, one or more of them variants or combinations, or any other suitable storage memory.
[0106] In some examples, the term "physical processor" generally refers to any type or form of hardware-implemented processing unit capable of interpreting and / or executing computer-readable instructions. In one example, the physical processor can access and / or modify one or more modules stored in the above-mentioned memory device. Examples of physical processors include, but are not limited to, microprocessors, microcontrollers, central processing units (CPUs), field programmable gate arrays (FPGAs) implementing soft-core processors, application-specific integrated circuits (ASICs), parts of one or more of them, variants or combinations of one or more of them, or any other suitable physical processors.
[0107] Although shown as separate elements, the modules described and / or shown in this article can represent parts of a single module or application. In addition, in some embodiments, one or more of these modules can represent one or more software applications or programs, which, when executed by a computing device, can cause the computing device to perform one or more tasks. For example, one or more of these modules described and / or shown in this article can represent modules stored and configured to run on one or more computing devices or systems in these computing devices or systems described and / or shown in this article. One or more of these modules can also represent all or part of one or more special-purpose computers configured to perform one or more tasks.
[0108] In addition, one or more of the modules described herein may convert data, physical devices, and / or representations of physical devices from one form to another. Additionally or alternatively, one or more of the modules described herein may convert a processor, volatile memory, non-volatile memory, and / or any other portion of a physical computing device from one form to another by executing on a computing device, storing data on a computing device, and / or otherwise interacting with a computing device.
[0109] In some embodiments, the term "computer-readable medium" generally refers to any form of device, carrier or medium capable of storing or carrying computer-readable instructions. Examples of computer-readable media include, but are not limited to, transmission-type media such as carrier waves, and non-transitory media such as magnetic storage media (e.g., hard disk drives, tape drives, and floppy disks), optical storage media (e.g., compact discs (CDs), digital video discs (DVDs), and Blu-ray discs (BLU-RAYdiscs)), electronic storage media (e.g., solid-state drives and flash memory media), and other distribution systems.
[0110] The process parameters and order of steps described and / or illustrated herein are given as examples only and may be changed as desired. For example, although the steps illustrated and / or described herein may be shown or discussed in a particular order, these steps do not necessarily need to be performed in the order shown or discussed. The various exemplary methods described and / or illustrated herein may also omit one or more of the steps described or illustrated herein, or include additional steps in addition to those disclosed.
[0111] The previous description has been provided to enable others skilled in the art to best utilize the various aspects of the exemplary embodiments disclosed herein. This exemplary description is not intended to be exhaustive or limited to any precise form disclosed. Many modifications and variations are possible without departing from the scope of the present disclosure. The embodiments disclosed herein should be considered in all respects to be illustrative and not restrictive. In determining the scope of the present disclosure, reference should be made to the claims attached hereto and their equivalents.
[0112] Unless otherwise indicated, the terms "connected to" and "coupled to" (and their derivatives) used in the specification and claims should be interpreted as allowing both direct and indirect (i.e., via other elements or components) connections. In addition, the terms "a" or "an", as used in the specification and claims, are interpreted to mean "at least one". Finally, for ease of use, as used in the specification and claims, the terms "including" and "having" (and their derivatives) are interchangeable with the word "comprising" and have the same meaning.
Claims
1. A system comprising: Support structure; at least one lens, the at least one lens mounted to the support structure; as well as A transparent antenna film layer is disposed on at least a portion of the lens, the transparent antenna film layer includes at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
2. The system according to claim 1, wherein: The transparent antenna film layer comprises a printed transparent conductive material. In this case, optionally, the transparent antenna film layer comprises a mesh metal.
3. The system according to claim 1 or 2, wherein: The transparent antenna film layer is disposed on the conductive layer of the lens. In this case, optionally, any one or more of the following are present: a) wherein the conductive layer of the lens comprises an active dimming layer; or b) Wherein, the transparent antenna film layer substantially covers the conductive layer of the lens.
4. A system according to any preceding claim, wherein: The transparent antenna film layer is directly electrically connected to the antenna port. In this case, optionally, the transparent antenna film layer is directly electrically connected to the antenna port through a flexible substrate.
5. A system according to any preceding claim, wherein: The lens includes a non-conductive layer on the top, an active dimming layer on the top, a liquid crystal layer, and a floating layer on the bottom.
6. A system according to any preceding claim, wherein: The lens comprises a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer being separated by at least a specified distance, in which case, optionally, the second conductive layer of the lens is electrically floating at an operating frequency of the antenna.
7. A wearable mobile device, comprising: Support structure; at least one lens, the at least one lens mounted to the support structure; as well as A transparent antenna film layer is disposed on at least a portion of the lens, the transparent antenna film layer includes at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer.
8. The wearable mobile device according to claim 7, wherein: The lens includes a first conductive layer and a second conductive layer, the first conductive layer and the second conductive layer being separated by at least a specified distance.
9. The wearable mobile device according to claim 8, wherein: The lens further comprises an intermediate non-conductive layer disposed on top of the first conductive layer, and wherein the transparent antenna film layer is disposed on the intermediate non-conductive layer.
10. The wearable mobile device according to claim 8 or 9, wherein: The second conductive layer is an electrically floating layer.
11. The wearable mobile device according to claim 10, wherein: One or more impedance optimized radio frequency (RF) chokes are implemented to electrically float the second conductive layer at an operating frequency of the antenna.
12. The wearable mobile device according to any one of claims 7 to 11, wherein: At least one of the thickness of the transparent antenna film layer, the size of the transparent antenna film layer, the size of the gap between the support structure and the transparent antenna film layer, or the resistivity of the active dimming layer is modified to change the antenna operating characteristics.
13. The wearable mobile device according to any one of claims 7 to 12, wherein: The gap between the support structure and the transparent antenna film layer forms at least one of a loop antenna or a slot antenna.
14. The wearable mobile device according to any one of claims 7 to 13, wherein: The support structure comprises a metal frame.
15. A manufacturing method comprising: Provide support structures; disposing a transparent antenna film layer on at least a portion of the lens, the transparent antenna film layer comprising at least one antenna, and wherein the transparent antenna film layer is arranged to form a gap between the support structure and the transparent antenna film layer; as well as The lens with the transparent antenna film layer is mounted to the support structure.
Citation Information
Cited By
Transparent antenna lens and intelligent glasses
CN120742553A
