MR equipment based on VST technology

Abstract

The utility model relates to the field of MR equipment, in particular to MR equipment based on the VST technology, which comprises a main machine, a VST module is arranged in the main machine, an elastic cover fitting the eye contour is arranged on the inner side of the main machine, the top of the main machine is connected with a traction base, the left side and the right side of the traction base are provided with traction rods bending and extending backwards, and the rear side ends of the traction rods are connected with sleeve bodies. An elastic clamping structure is arranged between the sleeve body and the traction rod, front-back relative displacement restrained by elastic pressing can be generated, an annular hoop structure arranged on the periphery of the head in a sleeving mode is formed, a wrapping body capable of being attached to the forehead is arranged on the top of the traction base, and limiting pieces matched with the rear contours of the ears are further arranged on the sleeve body. The limiting piece can be clamped on the rear side of the ear to form a transverse limiting structure. According to the utility model, the wearing stability of equipment is improved, and a reliable structural basis is provided for MR use experience.

Description

Technical Field

[0001] The utility model relates to the field of MR equipment, in particular to a MR equipment based on VST technology. Background Art

[0002] MR devices mix the real world and the virtual world to create a new visual environment that contains both physical entities and virtual information, and must be "real-time" and "dynamic". MR devices present virtual scene information in real scenes, build an interactive feedback information loop between the real world, the virtual world and the user, and improve the user experience.

[0003] VST technology is widely used in MR devices. VST technology, or video perspective, is a technology that superimposes virtual images on real-time video streams in the real world, allowing users to immersively watch augmented reality content through devices such as displays or glasses. What users ultimately see is a video that combines reality and virtuality.

[0004] Since VST technology focuses on immersive experience, MR devices based on VST technology have relatively higher requirements for wearing. The basic structure of existing MR head-mounted display devices is generally divided into an imaging component and a fixed component connected to the imaging component. The imaging component is placed in front of the eyes, and the fixed component is connected to the head to prevent the imaging component from falling. With the development of MR, software adapted to MR is becoming more and more diverse. Because MR viewing is more realistic, it is easy to bring the user into the scene and perform certain body movements. If the body movements are large, it is easy to cause the imaging component to shake or move away from the front of the eyes, affecting the MR viewing experience and the effect of the user viewing MR. In addition, the shaking will also cause the image projected on the retina to produce virtual shaking and double images, or light leakage, affecting the display effect. Utility Model Content

[0005] The utility model provides an MR device based on VST technology, which is beneficial to improving the wearing stability of the device and providing a reliable structural foundation for the MR usage experience.

[0006] The utility model is achieved in this way:

[0007] A MR device based on VST technology includes a main unit, a VST module is arranged in the main unit, an elastic cover fitting the eye contour is arranged inside the main unit, a traction base is connected to the top of the main unit, traction rods bending and extending backward are arranged on the left and right sides of the traction base, a sleeve is connected to the rear end of the traction rod, an elastic clamping structure is arranged between the sleeve and the traction rod, and front and rear relative displacement under elastic pressure constraint can occur to form an annular sleeve structure sleeved on the periphery of the head, a wrapping body fitting the forehead is arranged on the top of the traction base, and a limiting plate adapting to the contour behind the ear is also arranged on the sleeve, and the limiting plate can be clamped behind the ear to form a lateral limiting structure.

[0008] On the basis of the above technical solution, the sleeve is a horizontal "U"-shaped structure with its open end leading forward. An active cavity is provided inside the sleeve. An insertion interface is provided at the front end of the active cavity, which connects the active cavity with the external space. The rear end of the traction rod extends into the active cavity through the insertion interface.

[0009] Based on the above technical solution, an anti-drop block is provided at the rear end of the traction rod. The anti-drop block is a radial flange structure. The anti-drop block is located in the active cavity. The outer contour of the anti-drop block is larger than the inner contour of the plug-in interface, forming an anti-drop structure between the traction rod and the sleeve.

[0010] On the basis of the above technical solution, the anti-slip block is provided with a first groove of an annular structure on the side facing the plug-in interface, and the active cavity is provided with a second groove on the side wall facing the first groove. The second groove is located at the radial periphery of the plug-in interface, and the second groove is aligned with the first groove. A spring is provided between the first groove and the second groove, and the extension and contraction direction of the spring is parallel to the axial direction of the traction rod.

[0011] On the basis of the above technical solution, the outer contour of the anti-slip block is in close contact with the inner wall of the movable cavity.

[0012] On the basis of the above technical solution, the inclusion body is a sheet-like structure, the top of which is an upwardly curved arc profile, and the bottom is fixedly connected to the traction base.

[0013] On the basis of the above technical solution, the wrapping body is composed of two layers of fabric, front and back, and a shaping spring is arranged inside.

[0014] On the basis of the above technical solution, a plurality of shaping spring pieces are radially arranged upward with the center point of the bottom of the inclusion body as the origin.

[0015] On the basis of the above technical solution, a hollow through hole is provided on the shaping spring piece, and the mutual gaps between the several hollow through holes on the same shaping spring piece gradually decrease from the bottom to the top of the shaping spring piece.

[0016] On the basis of the above technical solution, adjacent shaping springs are connected by arc-shaped ribs to form a mesh skeleton structure.

[0017] Compared with the prior art, the utility model has at least the following advantages:

[0018] The utility model arranges an elastic cover that adapts to the eye contour on the inner side of the main unit, which can effectively ensure the sealing of the eye area after wearing, and has a certain elastic activity margin. In addition, a traction base is arranged on the top of the main unit, and the traction rods extending backwards on both sides of the traction base and the rear sleeve body form an annular sleeve structure. The annular sleeve structure also has elastic pressure application capability, which can ensure that the device is tightly mounted on the head. In addition, the limiting protection effect is further enhanced by using a limiting plate, and the wrapping body fits the forehead area to increase friction, thereby improving the stability of the device after wearing, which is beneficial to improving the wearing stability of the device and providing a reliable structural foundation for the MR usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic structural diagram of an MR device based on VST technology in an embodiment;

[0021] Figure 2 is a functional module relationship diagram of an MR device in an embodiment;

[0022] Figure 3 for Figure 1 A schematic diagram of the connection structure between the middle traction rod and the sleeve;

[0023] Figure 4 This is a schematic diagram of the structure of an elastic cover in one embodiment;

[0024] Figure 5 It is a schematic diagram of the structure of a shaping spring in one embodiment;

[0025] Figure 6 FIG. 4 is a schematic diagram of the structure of a shaping spring in another embodiment.

[0026] Labels in the figure: 1. Main machine; 11. Elastic cover; 2. Traction base; 21. Traction rod; 22. Anti-slip block; 23. First sink groove; 24. Envelope; 25. Shaping spring; 26. Hollow through hole; 27. Rib; 3. Sleeve; 31. Movable cavity; 32. Plug interface; 33. Second sink groove; 4. Spring; 5. Limiting piece. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0028] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to an element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0030] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1: Combination Figure 1-5 This embodiment discloses an MR device based on VST technology, which enables users to immersively watch augmented reality content through devices such as display screens or glasses by superimposing virtual images on real-time video streams in the real world.

[0032] Combination Figure 2In terms of function, the MR device in this embodiment is based on the VST module and is equipped with a camera module, a control module, a power module, a communication module, a display module and a sound module. They are all prior arts, and their specific structures and working principles are not described here in detail. Those skilled in the art can select and implement them from the prior arts according to the actual operation conditions. Among them, the camera module includes a camera for acquiring real video information; the control module uses Bluetooth gloves for actively inputting instructions, and specific reference can be made to relevant contents such as Chinese patent CN201720046683.3; the power module provides power for the electronic components of the device; the communication module is used to connect the modules and transmit data; the display module is used to display the image information combining virtual and real; and the sound module is used to output sound information.

[0033] Structurally, combined Figure 1 The MR device includes a host 1, wherein the host 1 is provided with a VST module, a camera module, a communication module, a display module, and a power module. Figure 4 An elastic cover 11 that fits the eye contour is provided on the inner side of the host 1. The elastic cover 11 is made of rubber material. Its sealing protection function can effectively ensure the sealing of the eye area after wearing, and has a certain elastic activity margin.

[0034] The top of the main unit 1 is connected to a traction base 2, and the bottom of the traction base 2 is fixedly connected to the center of the top of the main unit 1. In other embodiments, the connection may adopt a pivot structure. In this embodiment, the left and right sides of the traction base 2 are provided with traction rods 21 that are bent and extend backward, so that the traction base 2 presents a horizontal "U"-shaped profile when viewed from a top view. The rear end of the traction rod 21 is connected to a sleeve 3, and an elastic clamping structure is provided between the sleeve 3 and the traction rod 21, which can cause a front-to-back relative displacement constrained by elastic pressure, forming an annular sleeve structure sleeved on the periphery of the head. In actual use, the annular sleeve structure can be tightly sleeved on the head, and the main unit 1 is located at the bottom in a semi-suspended state and fits tightly in front of the eye. Through reasonable angle design, it can be ensured that the rear side of the main unit closely covers the eye observation area.

[0035] Further, such as Figure 3 As shown, the sleeve 3 is a horizontal "U"-shaped structure with its open end leading forward. An active cavity 31 is provided inside the sleeve 3. An insertion port 32 is provided at the front end of the active cavity 31. The insertion port 32 connects the active cavity 31 with the external space. The rear end of the traction rod 21 extends to the inside of the active cavity 31 through the insertion port 32.

[0036] The rear end of the traction rod 21 is provided with an anti-drop block 22, which is a radial flange structure. The anti-drop block 22 is located in the movable cavity 31, and the outer contour of the anti-drop block 22 is larger than the inner contour of the plug-in port 32, forming an anti-drop structure between the traction rod 21 and the sleeve 3. In fact, the sleeve 3 is formed by splicing two shells. Before splicing and assembling, the anti-drop block 22 of the traction rod 21 is placed in the movable groove and then spliced ​​and fixed.

[0037] The anti-slip block 22 is provided with a first groove 23 of an annular structure on the side facing the plug-in port 32, and the movable cavity 31 is provided with a second groove 33 on the side wall facing the first groove 23. The second groove 33 is located at the radial periphery of the plug-in port 32, and the second groove 33 is aligned with the first groove 23. A spring 4 is arranged between the first groove 23 and the second groove 33. The extension and contraction direction of the spring 4 is parallel to the axial direction of the traction rod 21. In the free state, the spring 4 can apply an axial backward thrust to the anti-slip block 22, so that the anti-slip block 22 is away from the plug-in port 32. Therefore, there is an elastic pressure-applying ability between the traction rod 21 and the sleeve body 3, which can fit the head tightly after being worn, making the wearing more stable and reliable.

[0038] It should be noted that the outer contour of the anti-slip block 22 is in close contact with the inner wall of the movable cavity 31 , which makes the sliding path of the anti-slip block 22 in the movable cavity 31 more stable and will not easily deviate and affect the misalignment of the spring 4 .

[0039] Furthermore, a wrapping body 24 that can fit the forehead is provided on the top of the traction base 2. The main function of the wrapping body 24 is to increase the contact area between the device and the human body and increase the relative friction so that the device will not fall off or shift easily after being worn.

[0040] Specifically, the wrapping body 24 is a sheet-like structure, the top of which is an arc-shaped profile that bends upward, and the bottom is fixedly connected to the traction base 2. The wrapping body 24 is composed of two layers of fabric (nylon material) in front and back, and a shaping spring 25 (aluminum sheet material) is provided inside. In this embodiment, three shaping springs 25 are radially arranged upward with the center point of the bottom of the wrapping body 24 as the origin, and the shape is similar to a claw structure. The main function of the shaping spring 25 is to maintain the stability of the sheet structure of the wrapping body 24 to prevent it from folding and failing to fit the forehead. Another function is that the shaping spring 25 can provide a more stable fitting effect, so that the fit between the wrapping body 24 and the forehead is higher.

[0041] In order to soften the structure of the shaping sheet and make its deformation more flexible, a hollow through hole 26 is provided on the shaping spring piece 25. The mutual gaps between several hollow through holes 26 on the same shaping spring piece 25 gradually decrease from the bottom to the top of the shaping spring piece 25, which makes the free end at the top thinner and more flexible, and can fit the forehead in the outer area.

[0042] In this embodiment, the sleeve 3 is also provided with a limiting plate 5 adapted to the contour behind the ear. The limiting plate 5 can be clamped on the back side of the ear to form a lateral limiting structure. Its function is to increase the force fulcrum, reduce the load burden of the traction base 2, and make the traction structure between the sleeve 3 and the traction rod 21 more stable and reliable.

[0043] Example 2: Based on Example 1, Figure 6 As shown, adjacent shaping springs 25 are connected by arc-shaped ribs 27 to form a mesh skeleton structure. This structure further improves the structural stability of the inclusion body 24 itself, so that it always has a better posture to fit the forehead.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A MR device based on VST technology, characterized in that: The invention comprises a main unit (1), wherein a VST module is arranged inside the main unit (1), an elastic cover (11) which fits the eye contour is arranged inside the main unit (1), a traction base (2) is connected to the top of the main unit (1), traction rods (21) which are bent and extend backward are arranged on the left and right sides of the traction base (2), a sleeve (3) is connected to the rear end of the traction rod (21), an elastic clamping structure is arranged between the sleeve (3) and the traction rod (21), and relative displacement forward and backward under elastic pressure constraint can occur to form an annular sleeve hoop structure sleeved on the periphery of the head, a wrapping body (24) which can fit the forehead is arranged on the top of the traction base (2), and a limiting plate (5) which adapts to the contour behind the ear is also arranged on the sleeve (3), and the limiting plate (5) can be clamped on the back side of the ear to form a lateral limiting structure.

2. The MR device based on VST technology according to claim 1, characterized in that: The sleeve (3) is a horizontally placed "U"-shaped structure with an open end leading forward. An active cavity (31) is provided inside the sleeve (3). An insertion port (32) is provided at the front end of the active cavity (31). The insertion port (32) enables the active cavity (31) to communicate with an external space. The rear end of the traction rod (21) extends into the active cavity (31) through the insertion port (32).

3. The MR device based on VST technology according to claim 2, characterized in that: The rear end of the traction rod (21) is provided with an anti-dropping block (22), which is a radial flange structure. The anti-dropping block (22) is located in the movable cavity (31), and the outer contour of the anti-dropping block (22) is larger than the inner contour of the plug interface (32), thereby forming an anti-dropping structure between the traction rod (21) and the sleeve body (3).

4. The MR device based on VST technology according to claim 3, characterized in that: The anti-drop block (22) is provided with a first sunken groove (23) of an annular structure on the side facing the plug interface (32); the movable cavity (31) is provided with a second sunken groove (33) on the side wall facing the first sunken groove (23); the second sunken groove (33) is located radially outside the plug interface (32); the second sunken groove (33) is aligned with the first sunken groove (23); a spring (4) is arranged between the first sunken groove (23) and the second sunken groove (33); the extension direction of the spring (4) is parallel to the axial direction of the traction rod (21).

5. The MR device based on VST technology according to claim 4, characterized in that: The outer contour of the anti-slip block (22) is in close contact with the inner wall of the movable cavity (31).

6. The MR device based on VST technology according to claim 1, characterized in that: The inclusion body (24) is a sheet-like structure, the top of which is an upwardly curved arc profile, and the bottom of which is fixedly connected to the traction base (2).

7. The MR device based on VST technology according to claim 6, characterized in that: The wrapping body (24) is composed of two layers of fabric, front and back, and has a shaping spring sheet (25) inside.

8. The MR device based on VST technology according to claim 7, characterized in that: A plurality of shaping spring pieces (25) are radially arranged upwards with the center point of the bottom of the enveloping body (24) as the origin.

9. The MR device based on VST technology according to claim 8, characterized in that: The shaping spring piece (25) is provided with a hollow through hole (26), and the mutual gaps between a plurality of hollow through holes (26) on the same shaping spring piece (25) gradually decrease from the bottom to the top of the shaping spring piece (25).

10. The MR device based on VST technology according to claim 9, characterized in that: Adjacent shaping spring pieces (25) are connected via arc-shaped ribs (27) to form a mesh skeleton structure.

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