Head-mounted foldable audiovisual information AR device

Abstract

The utility model belongs to the technical field of augmented reality, and particularly relates to a head-mounted foldable audio-visual information AR device. Comprising an inner frame, two ends of the semicircular inner frame are provided with rotating shafts, a middle frame and an outer frame, earphones and microphones are installed on the rotating shafts at the two ends of the inner frame, the middle frame is provided with a large-capacity battery, and the outer frame is provided with electronic and optical systems such as information storage and processing and near-to-eye display. When the inner frame, the middle frame and the outer frame rotate to the same direction, the device is in a storage state with the minimum size; the inner frame, the middle frame and the outer frame rotate to limiting positions in different directions, the device is in a frame structure state suitable for being worn on the head, the middle frame is located behind the brain, and the outer frame is located in front of the eyes. The beneficial effects of the utility model are that the whole structure can accommodate a battery and an electronic module with a large volume, thereby realizing longer working time and more functions; contact with parts such as ears and noses is avoided, and long-time wearing is facilitated; the distance between the waveguide lens and eyes is increased, and fogging and frosting of the lens when the lens is worn in a low-temperature environment are reduced.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of AR (Augmented Reality) technology, and particularly relates to a head-mounted foldable audio-visual information AR device. BACKGROUND

[0002] Augmented Reality (AR) technology is a technology that fuses virtual information with the real world. Real-time perception, big data management, high-speed computing, microstructure processing and other technical means are used to fuse computer-generated text, images, sound and other virtual information into human natural perception information, so that the two kinds of information complement each other, thereby realizing faster, more accurate and more in-depth cognition of the real world by people.

[0003] The current mainstream AR product is AR glasses, which has a structure similar to ordinary glasses and is worn in the same way as ordinary glasses. Because the core function of the AR product is to display virtual images in the normal field of view of a person, the core component for achieving this function is a near-eye display system. Designing the near-eye display system into the structure of glasses is a reasonable solution to the fusion of virtual images and visual real scenes.

[0004] In addition to the basic components of ordinary glasses, AR glasses at least include an optical system, an electronic system, a power supply system, etc., and their volume and weight will certainly significantly exceed those of ordinary glasses. Wearing ordinary glasses mainly relies on the ears and nose of a person for support, and the contact area of the support position is generally small, so long-term wearing is not very comfortable. The volume and weight of the AR device are certainly not suitable for being supported and worn by the ears and nose. On the contrary, in order to be suitable for being supported and worn by the ears and nose, the volume and weight of the AR glasses must be strictly limited, which restricts the weight and volume of the battery and electronic components. Therefore, for an AR system with more complex components and higher functional performance requirements, a structure that does not rely on ear and nose support for wearing must be adopted. SUMMARY

[0005] The present application proposes a head-mounted foldable audio-visual information AR device that is comfortable to wear, easy to carry and has a longer continuous working time, in view of the actual needs of AR system applications.

[0006] The application is realized by the following technical measures: it comprises an inner frame, the inner frame is provided with trunnions at both ends, and is a support mechanism of middle frame and outer frame and other components; the middle frame is installed outside the inner frame, the shaft hole at both ends of the middle frame is matched with the trunnions at both ends of the inner frame, and the middle frame is provided with a battery assembly at the middle position; the outer frame is installed outside the middle frame, the shaft hole at both ends of the outer frame is matched with the trunnions at both ends of the inner frame, and the outer frame is approximately provided with a spectacle frame, and the outer frame is provided with an information storage and processing assembly, a wireless communication assembly, a positioning assembly, an imaging assembly, a near-eye display assembly, a button, a switch and the like; a headset assembly and a microphone assembly are respectively installed outside the outer frame, and the shaft hole of the headset assembly and the microphone assembly is matched with the trunnions at both ends of the inner frame. The middle frame, the outer frame, the headset assembly and the microphone assembly can be rotated to a parallel position with the inner frame, so that the whole device is folded to the minimum volume. The middle frame, the outer frame, the headset assembly and the microphone assembly can be rotated within a certain range, and a limiting component is arranged on the shaft hole of the inner frame, the middle frame, the outer frame, the headset assembly and the microphone assembly. When the middle frame is rotated backward to the limiting position and the outer frame is rotated forward to the limiting position, the inner frame, the middle frame and the outer frame form a frame structure suitable for head wearing. There is a cable connection between the middle frame, the outer frame, the headset assembly and the microphone assembly, and the cable connection is not affected by rotation. The battery assembly provides electric energy for the information storage and processing assembly, the imaging assembly, the near-eye display assembly, the headset assembly and the microphone assembly. The information storage and processing assembly collects and processes the input information of the imaging assembly, the microphone assembly, the wireless communication assembly and the positioning assembly, and outputs audio-visual information to the near-eye display assembly and the headset assembly. The near-eye display assembly displays a virtual image in front of the eyes by using a waveguide lens, and the human eye can see the real scene and the virtual image at the same time through the waveguide lens.

[0007] Preferably, the outer frame has a suitable front-back length, and maintains a distance of not less than 20 mm with the face when worn.

[0008] Preferably, the sheet structure section of the inner frame, the middle frame and the outer frame adopts an elastic material which is easy to bend.

[0009] Preferably, the sheet structure of the inner frame, the middle frame and the outer frame adopts a telescopic structure.

[0010] Preferably, the camera of the imaging assembly is arranged at the middle position of the waveguide lens of the outer frame.

[0011] Preferably, the imaging assembly is provided with an illumination light source, which assists in illumination when the ambient illumination is low, improves the imaging quality and improves the observation effect of the human eye on the real scene.

[0012] Preferably, the information processing assembly is arranged on both sides of the outer frame.

[0013] Preferably, the waveguide lens is installed and removed from the front side of the frame by a simple mounting method for easy replacement.

[0014] Preferably, the information storage and processing assembly is provided with switches and keys on the upper side.

[0015] Preferably, the inner frame, the middle frame and the head contact are provided with large-area elastic soft pads.

[0016] Preferably, the inner frame is provided with end caps at the two ends of the trunnion, and the end caps make the rotating shaft parts and cable connection parts of the middle frame, the outer frame, the earphone assembly and the microphone assembly in a relatively closed environment.

[0017] Preferably, the battery assembly uses a larger capacity battery.

[0018] Preferably, the weight of the middle frame matches the weight of the outer frame, so that the middle frame and the outer frame are in a state of gravity balance when they are rotated to the limit.

[0019] Preferably, the microphone assembly and the earphone assembly have a flexible structure and can be bent locally to fit the human body.

[0020] Compared with the prior art, the application has the following advantages: the overall structure can accommodate a larger volume of batteries and electronic modules, achieving longer continuous working time and more functions; the head-mounted state only contacts the top of the head, the two sides of the head and the back of the head, and the contact area is large, without contacting sensitive parts such as ears and nose, reducing the feeling of oppression caused by long-term wearing; the distance between the waveguide lens and the eyes is increased, reducing the contact with the nose and mouth of the person, avoiding the fogging and frosting of the lens caused by the person's breathing in a low temperature environment, and being beneficial to the application in cold areas; the folded state has a small volume and a regular shape, which is beneficial to carrying and storing. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is an appearance effect diagram of the application in a wearing state;

[0022] Fig. 2 is a structural schematic diagram of the application in an unfolded state (right side);

[0023] Fig. 3 is a structural schematic diagram of the application in an unfolded state (left side);

[0024] Fig. 4 is a structural schematic diagram of the application in a folded state;

[0025] Fig. 5 is a structural schematic diagram of the inner frame of the application;

[0026] Fig. 6 is a structural schematic diagram of the middle frame of the application;

[0027] Fig. 7 is a structural schematic diagram of the outer frame of the application.

[0028] In the figure: 1, inner frame, 2, middle frame, 3, outer frame, 4, microphone assembly, 5, earphone assembly, 6, end cover, 11, inner frame trunnion, 12, soft pad, 21, middle frame shaft hole, 22, battery assembly, 31, outer frame shaft hole, 32, waveguide lens, 33, camera and illumination light source combination, 34, electronic module, 35, key switch. DETAILED DESCRIPTION

[0029] In order to explain the technical content, the purpose and the effect of the present application in detail, the present application is described below through a specific embodiment and combined with the drawings.

[0030] Referring to FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7, the application provides a head-mounted foldable audio-visual information AR system, comprising an inner frame 1, the inner frame 1 is provided with trunnions 11 at both ends; a middle frame 2 is installed outside the inner frame 1, the shaft holes 21 at both ends of the middle frame 2 are matched with the trunnions 11 at both ends of the inner frame 1, and a battery assembly 22 is arranged at the middle position of the middle frame 2; an outer frame 3 is installed outside the middle frame 2, the shaft holes 31 at both ends of the outer frame 3 are matched with the shaft holes 21 at both ends of the middle frame 2, and the outer frame 3 is installed with information storage and processing assembly, wireless communication assembly, positioning assembly, imaging assembly, near-eye display assembly, key switch, etc. Most of the assemblies on the outer frame 3 are in the built-in state, the two waveguide lenses 32 of the near-eye display assembly are installed on the front of the outer frame 3, the camera and illumination light source combination 33 of the imaging assembly are installed at the middle position of the front of the outer frame 3, and the electronic module 34 containing the built-in information storage and processing, wireless communication, positioning, etc. Electronic components are installed on both sides of the outer frame 3, and the key switch 35 is arranged on the electronic module 34; the microphone assembly 4 and the earphone assembly 5 are respectively installed outside the outer frame 3, and the shaft holes of the microphone assembly 4 and the earphone assembly 5 are matched with the shaft holes 31 at both ends of the outer frame. The middle frame 2, the outer frame 3, the microphone assembly 4 and the earphone assembly 5 can all be rotated to be consistent with the direction of the inner frame 1, so that the entire device is folded to the smallest volume. Limiting parts are arranged on the rotating shafts of the inner frame 1, the middle frame 2, the outer frame 3, the microphone assembly 4 and the earphone assembly 5, the middle frame 2 is rotated backward to the limiting position, the outer frame 3 is rotated forward to the limiting position, and the inner frame 1, the middle frame 2 and the outer frame 3 form a semi-annular frame structure suitable for head-wearing. When wearing, the inner frame 1 is placed on the top of the head, the middle frame 2 is located behind the brain, and the outer frame 3 is located in front of the eyes. The inside and rotating shafts of the middle frame 2, the outer frame 3, the microphone assembly 4 and the earphone assembly 5 are provided with cable holes, and the inside has cables passing through. There is a cable connection between the middle frame 2, the outer frame 3, the microphone assembly 4 and the earphone assembly 5, the cable connection is not affected by rotation, and the rotating shaft and the cable connection are in the closed environment formed by the end cap 6. The battery assembly 22 provides power for the information storage and processing assembly, the imaging assembly, the near-eye display assembly, etc. The information storage and processing assembly collects and processes various information input by the imaging assembly, the microphone assembly, the wireless communication assembly, the positioning assembly, etc., and outputs audio-visual information to the near-eye display assembly and the earphone assembly. The near-eye display assembly displays virtual images in front of the eyes by using waveguide lenses 32, and the human eye can see the real scene and virtual images at the same time through the waveguide lenses 32.

[0031] The technical features not described in the present application can be implemented by the prior art, which will not be described here. Of course, the above description is not a limitation of the present application, and the present application is also not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present application should also be within the scope of the present application.

Claims

1. A head-mounted foldable audio-visual information AR device, characterized by: The inner frame, the middle frame, the outer frame, the earphone assembly and the microphone assembly are installed on the inner frame; the middle frame has a battery assembly at the middle position; the outer frame has an information storage and processing assembly, a wireless communication assembly, a positioning assembly, an imaging assembly and a near-eye display assembly; the middle frame, the outer frame, the earphone assembly and the microphone assembly can be rotated to be consistent with the direction of the inner frame to form a minimum volume state; the middle frame is rotated to a limiting position backward, and the outer frame is rotated to a limiting position forward to form a head-mounted state.

2. The foldable head-mounted audiovisual information AR device of claim 1, wherein: In the head-mounted state, the middle frame does not contact the face, and the front side is at a distance of not less than 20mm from the eyes.

3. The foldable head-mounted audiovisual information AR device of claim 1, wherein: The battery assembly is separated from the electronic component structure, and the position and volume of the battery assembly are not limited by the electronic component structure.

4. The foldable head-mounted audiovisual information AR device of claim 1, wherein: The inner frame has longer trunnions at both ends, and the middle frame, the outer frame, the earphone assembly and the microphone assembly are installed on the trunnions layer by layer.

5. The foldable head-mounted audiovisual information AR device of claim 1, wherein: The inner frame, the middle frame, the outer frame, the earphone assembly and the microphone assembly have limiting components at the rotating shaft positions to limit the rotating range.

6. The foldable head-mounted audiovisual information AR device of claim 1, wherein: The inner frame is a support mechanism for the overall weight, and the middle frame and the outer frame are in a basic gravity balance state relative to the rotating shaft after being unfolded.

7. The foldable head-mounted audiovisual information AR device of claim 1, wherein: The inner frame and the middle frame are provided with soft pads at the positions contacting the head.

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