Head-mounted device

Abstract

The invention provides a head-mounted device which comprises a glasses frame, glasses legs arranged on the two sides of the glasses frame respectively, an FPC used for being electrically connected with the glasses legs on the two sides of the glasses frame, an optical waveguide assembled with the glasses frame and a PET film, the FPC penetrates through the interior of the glasses frame and is parallel to the optical waveguide, a connecting circuit is arranged on the PET film, and the connecting circuit is connected with the glasses legs on the two sides of the glasses frame. And the connecting circuit is electrically connected with the FPC. According to the invention, the problem that the light and thin requirements of the existing head-mounted equipment cannot be met due to the large overall thickness of the glasses frame caused by the FPC setting mode can be solved.

Description

Technical Field

[0001] This invention relates to the field of smart electronic products technology, and more specifically, to a head-mounted device. Background Technology

[0002] Currently, head-mounted devices such as smart glasses, AR headsets, and VR headsets are increasingly appearing in daily life. Many existing head-mounted devices mainly consist of a frame and temples installed on the left and right sides of the frame, which are then worn on the user's head.

[0003] Taking AR glasses as an example, especially thin and light AR glasses with optical waveguides, an FPC that runs through the frame is needed to connect the internal functional electronic components of the left and right temples. Due to the data transmission requirements, the FPC needs to have a certain width. Currently, the FPC is set perpendicular to the optical waveguide inside the frame. However, this current FPC setting method makes the overall thickness of the frame relatively large, which does not meet the requirements of thinness and lightness.

[0004] In order to solve the above problems, the present invention urgently needs to provide a new head-mounted device. Summary of the Invention

[0005] In view of the above problems, the purpose of the present invention is to provide a head-mounted device to solve the problem that the existing head-mounted devices cannot achieve the requirement of being thin and light due to the large overall thickness of the frame caused by the FPC setting method.

[0006] This invention provides a head-mounted device, comprising: a frame, temples respectively disposed on both sides of the frame, an FPC for electrically connecting the temples on both sides of the frame, an optical waveguide assembled with the frame, and a PET film, wherein...

[0007] The FPC extends through the interior of the lens frame and is arranged parallel to the optical waveguide. A connection line is provided on the PET film, and the connection line is electrically connected to the FPC.

[0008] Furthermore, in a preferred embodiment, the FPC includes two waveguide contouring regions and a connecting portion connecting the two waveguide contouring regions, wherein...

[0009] An FPC contact is provided at both ends of each optical waveguide contouring region, and the FPC is electrically connected to the connection line through the FPC contact.

[0010] Furthermore, a preferred embodiment is that the FPC contacts are attached to the inner wall of the frame, pass through the frame, and are exposed on the end face of the frame.

[0011] Furthermore, a preferred embodiment is that PET contacts are provided at both ends of the PET film, the PET contacts are exposed on the end face of the PET film, and the PET contacts are connected through the connecting line.

[0012] Furthermore, in a preferred embodiment, the connecting line includes a linear area and a grid area disposed at both ends of the linear area, with each grid area electrically connected to a corresponding PET contact.

[0013] Furthermore, in a preferred embodiment, the connecting lines are disposed on the PET film by chemical deposition.

[0014] Furthermore, a preferred embodiment is that the connection line is a copper wire line.

[0015] Furthermore, in a preferred embodiment, the PET film is adhered to the optical waveguide, and the PET contacts are disposed on the sidewall of the optical waveguide.

[0016] Furthermore, in a preferred embodiment, the PET contacts are provided corresponding to the FPC contacts, and the PET contacts are electrically connected to the corresponding FPC contacts.

[0017] Furthermore, in a preferred embodiment, the FPC achieves electrical connection with the connection line through the FPC contacts and the corresponding PET contacts.

[0018] As can be seen from the above technical solution, the head-mounted device provided by the present invention sets FPC contacts on the FPC and sets connecting lines and PET contacts on the PET film attached to the optical waveguide. When the optical waveguide with the PET film attached is installed with the frame, the PET contacts and FPC contacts make contact and conduction. The connecting lines on the PET film, as part of the FPC, undertake the signal transmission task, thereby expanding the conduction width of the FPC, realizing the parallel arrangement of the FPC and the optical waveguide in the frame, thereby reducing the thickness of the frame and realizing the thinness of the head-mounted device.

[0019] To achieve the foregoing and related objectives, one or more aspects of the invention include the features that will be described in detail below. The following description and accompanying drawings illustrate certain exemplary aspects of the invention. However, these aspects indicate only a few of the various ways in which the principles of the invention can be used. Furthermore, the invention is intended to encompass all such aspects and their equivalents. Attached Figure Description

[0020] Other objects and results of the invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings. In the drawings:

[0021] Figure 1This is an exploded view of a head-mounted device according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of an FPC according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the optical waveguide and PET film assembly structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the assembly of the FPC and the frame according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram illustrating the width extension of an FPC according to an embodiment of the present invention;

[0026] Figure 6 This is a cross-sectional view of a head-mounted device according to an embodiment of the present invention.

[0027] The reference numerals in the figures include:

[0028] 1. Frame, 2. FPC, 21. First FPC contact, 22. Second FPC contact, 23. Third FPC contact, 24. Fourth FPC contact, 25. Connector, 26. First waveguide contouring area, 27. Second waveguide contouring area, 3. Waveguide, 4. PET film, 41. First PET contact, 42. Second PET contact, 43. Connecting line, 431. First grid area, 432. Second grid area, 433. Line area.

[0029] In all the accompanying drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Implementation

[0030] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In response to the aforementioned problem that existing head-mounted devices suffer from excessive frame thickness due to the FPC (Flexible Printed Circuit) configuration, thus failing to meet the requirements for lightweight and thin design, this invention proposes a head-mounted device.

[0033] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0034] To illustrate the structure of the head-mounted device provided by the present invention, Figures 1 to 6 The structure of the head-mounted device is illustrated by way of example from different angles. Specifically, Figure 1 An exploded view of the head-mounted device according to an embodiment of the present invention is shown; Figure 2 An FPC structure according to an embodiment of the present invention is shown; Figure 3 An optical waveguide and PET film assembly structure according to an embodiment of the present invention is shown; Figure 4 An assembly of an FPC with a picture frame according to an embodiment of the present invention is shown; Figure 5 An FPC width extension structure according to an embodiment of the present invention is shown; Figure 6 A cross-sectional view of a head-mounted device according to an embodiment of the present invention is shown.

[0035] like Figures 1 to 6 As shown in the figure, the head-mounted device provided by the present invention includes a frame 1, temples respectively disposed on both sides of the frame 1, an FPC 2 for electrically connecting the temples on both sides of the frame 1, an optical waveguide 3 assembled with the frame 1, and a PET film 4, wherein the FPC 2 penetrates the interior of the frame 1 and is disposed parallel to the optical waveguide 3, and a connection line 43 is disposed on the PET film 4, the connection line 43 being electrically connected to the FPC 2.

[0036] In this embodiment, the frame 1 has a symmetrical structure. The optical waveguide 3 and the PET film 4 are assembled together and installed on the left and right sides of the frame 1 respectively. That is, one set of assembled optical waveguide 3 and PET film 4 is assembled on the left side of the frame 1, and another set of assembled optical waveguide 3 and PET film 4 is assembled on the right side of the frame 1; and the FPC2 penetrates the entire interior of the frame 1.

[0037] The FPC2 is designed to resemble the shape of the frame 1, including two waveguide contoured regions and a connecting portion connecting the two waveguide contoured regions. FPC contacts are provided at both ends of each waveguide contoured region, and the FPC is electrically connected to the connecting line through these contacts. Figure 2 In the embodiment shown, FPC2 includes a first waveguide contouring region 26 and a second waveguide contouring region 27 located at both ends, and a connecting portion 25 connecting the first waveguide contouring region 26 and the second waveguide contouring region 27.

[0038] The FPC contacts are attached to the inner wall of the frame 1, and pass through the frame 1 and are exposed on the end face of the frame. Figure 2 and Figure 4 In the embodiment shown, four FPC contacts are provided on FPC2. First FPC contact 21 and second FPC contact 22 are provided on both sides of the first optical waveguide contouring region 26, and third FPC contact 23 and fourth FPC contact 24 are provided on both sides of the second optical waveguide contouring region 27.

[0039] In an embodiment of the present invention, PET contacts are respectively provided at both ends of the PET film 4, the PET contacts are exposed on the end face of the PET film, and the PET contacts are connected through the connecting line 43. Figure 3 In the embodiment shown, each PET film 4 has a first PET contact 41 and a second PET contact 42 respectively on its sidewall, and a connecting line 43 is provided at the edge of each PET film 4 to conduct the first PET contact 41 and the second PET contact 42 through the connecting line 43.

[0040] exist Figure 3 In the illustrated embodiment, the connecting line 43 includes a line area 433 and a grid area disposed at both ends of the line area 433, each grid area being electrically connected to a corresponding PET contact. The grid areas disposed at both ends of the line area 433 are a first grid area 431 and a second grid area 432, wherein the first grid area 431 is electrically connected to the first PET contact 41, and the second grid area 432 is electrically connected to the second PET contact 42.

[0041] It should be noted that, in order to strengthen the electrical connection between the connecting line 43 and the PET contact, a grid line is used for the connection between the connecting line 43 and the PET contact; and in order not to affect the transparency of the optical waveguide 3 and the PET film 4, extremely fine lines are used for the electrical connection.

[0042] The connecting lines 43 are copper wire lines, meaning they are composed of multiple extremely fine copper wires. The connecting lines 43 are deposited on the PET film 4 via chemical deposition. In applications, the chemical deposition parameters are adjusted according to the actual situation to deposit the required width of the connecting lines 43 and the width of each copper wire on the PET film 4.

[0043] exist Figure 3In the illustrated embodiment, the PET film 4 is adhered to the optical waveguide 1, and the PET contacts are disposed on the sidewall of the optical waveguide 3. Specifically, the first PET contact 41 and the second PET contact 42 are respectively disposed on the sidewall of the optical waveguide 3. That is, the first PET contact 41 and the second PET contact 42 can be adhered to the sidewall of the optical waveguide 3, or they can be placed in contact with the sidewall of the optical waveguide 3. In specific applications, these settings can be configured according to actual conditions, and no specific limitations are made here.

[0044] exist Figure 5 and Figure 6 In the embodiment shown, when the assembled optical waveguide 3 and PET film 4 are assembled into the frame 1, the PET contacts of the PET film 4 are correspondingly set with the FPC contacts set on the frame 1, and the PET contacts are electrically connected to the corresponding FPC contacts.

[0045] like Figure 5 As shown, the first PET contact 41 is electrically connected to the first FPC contact 21, and the second PET contact 42 is electrically connected to the second FPC contact 22. Therefore, the FPC2 is electrically connected to the connection line 43 through the conduction of the FPC contact and the corresponding PET contact.

[0046] In other words, the connecting line 43 establishes an electrical connection with the FPC, allowing the PET film 4 containing the connecting line 43 to also undertake signal transmission tasks, effectively expanding the width of the FPC. Figure 5 In the embodiment shown, the expanded width becomes D1, which not only enables the FPC and optical waveguide 3 within the frame 1 to be arranged in parallel, reducing the thickness of the frame, but also makes the head-mounted device thinner and lighter.

[0047] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A head-mounted device, comprising: The lens frame, temples respectively disposed on both sides of the lens frame, an FPC for electrically connecting the temples on both sides of the lens frame, an optical waveguide assembled with the lens frame, and a PET film, characterized in that, The FPC extends through the interior of the lens frame and is arranged parallel to the optical waveguide. A connection line is provided on the PET film, and the connection line is electrically connected to the FPC.

2. The head-mounted device according to claim 1, characterized in that, The FPC includes two waveguide contouring regions and a connecting portion connecting the two waveguide contouring regions, wherein... An FPC contact is provided at both ends of each optical waveguide contouring region, and the FPC is electrically connected to the connection line through the FPC contact.

3. The head-mounted device according to claim 2, characterized in that, The FPC contacts are attached to the inner wall of the frame, pass through the frame, and are exposed on the end face of the frame.

4. The head-mounted device according to claim 2, characterized in that, PET contacts are provided at both ends of the PET film, the PET contacts are exposed on the end face of the PET film, and the PET contacts are connected through the connecting line.

5. The head-mounted device according to claim 4, characterized in that, The connection line includes a linear area and a grid area disposed at both ends of the linear area, and each part of the grid area is electrically connected to a corresponding PET contact.

6. The head-mounted device according to claim 1, characterized in that, The connecting lines are formed on the PET film by chemical deposition.

7. The head-mounted device according to claim 1, characterized in that, The connection line is a copper wire line.

8. The head-mounted device according to claim 4, characterized in that, The PET film is adhered to the optical waveguide, and the PET contacts are disposed on the sidewall of the optical waveguide.

9. The head-mounted device according to claim 8, characterized in that, The PET contacts are provided corresponding to the FPC contacts, and the PET contacts are electrically connected to the corresponding FPC contacts.

10. The head-mounted device according to claim 9, characterized in that, The FPC achieves electrical connection with the connection line through the FPC contacts and the corresponding PET contacts.

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