AR display device

Abstract

The invention relates to the technical field of AR, and aims to provide AR display equipment. According to the AR display device, the optical machine and the mirror frame are decoupled, so that the area and the thickness of the mirror frame are small, and the whole device is light and thin. The AR display equipment comprises a glasses frame, optical waveguide lenses, glasses legs and an optical machine module, grooves are formed in two ends of the glasses frame; the two optical waveguide lenses are arranged on the glasses frame at an interval; the two glasses legs are respectively hinged with two ends of the glasses frame and have an open state when being vertical to the glasses frame; an optical machine module is arranged at one end, close to the hinged point of the glasses leg and the glasses frame, of each glasses leg, and when the glasses legs are in an open state, the optical machine modules are located in the grooves. According to the AR display equipment, the problems that the area and the thickness of the mirror frame are increased, the whole AR display equipment is thicker and heavier and the wearing experience of a user is influenced due to the fact that the light machines are fixedly arranged at the two ends of the mirror frame in the AR display equipment in the prior art are solved.

Description

Technical Field

[0001] The present invention relates to the field of AR technology, and in particular to an AR display device. Background Art

[0002] AR (Augmented Reality) display devices, also called AR glasses, are smart devices that can superimpose virtual information on real scenes, allowing users to see not only the real world but also "virtual images". The real and virtual environments are superimposed and presented to the user.

[0003] Existing AR display devices are generally composed of a frame, temples, optical waveguide lenses and an optical engine. The optical waveguide lenses are set on the frame, and the optical engines are fixedly set at both ends of the frame, and the temples are hingedly connected at both ends of the frame. Since the optical engine is fixed at both ends of the frame and needs to occupy a certain installation space, it will increase the area and thickness of the frame, and then the entire AR display device will appear relatively heavy, affecting the user's wearing experience. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the AR display device in the prior art fixes the optical machine at both ends of the frame, which causes the area and thickness of the frame to increase, and the entire AR display device appears to be relatively thick, affecting the user's wearing experience, thereby providing an AR display device that decouples the optical machine and the frame, has a smaller area and thickness of the frame, and is relatively light and thin as a whole.

[0005] In order to solve the above problems, the present invention provides an AR display device, comprising:

[0006] A mirror frame, wherein both ends of the mirror frame are provided with grooves;

[0007] Optical waveguide lenses, two of which are spaced apart and arranged on the lens frame;

[0008] Temples, two temples are respectively hinged to two ends of the frame, and the temples are in an open state when they are perpendicular to the frame;

[0009] An optical-mechanical module is provided at one end of each temple close to a hinge point between the temple and the frame, and when the temple is in the open state, the optical-mechanical module is located in the groove.

[0010] Optionally, the temples and the frame are hinged via a shaft assembly.

[0011] Optionally, the shaft assembly includes: a shaft body and a shell, the shaft body is connected to the frame, the shell is sleeved on the shaft body, and the shell can rotate around the shaft body, and the temples are fixedly connected to the shell.

[0012] Optionally, the rotating shaft assembly also includes: an upper fixing member and a lower fixing member, both of which are sleeved on the shaft body, the upper fixing member is located above the shell, and the top end of the shaft body is clamped with the upper fixing member, and the lower fixing member is located below the shell, and the bottom end of the shaft body is clamped with the lower fixing member.

[0013] Optionally, the top end of the shaft body has a clamping portion protruding from the main body, and the upper fixing member is provided with a clamping groove, and the clamping portion is clamped with the clamping groove.

[0014] Optionally, an annular groove is provided at the bottom end of the shaft body, a retaining spring is provided on the annular groove, and the retaining spring is connected to the lower fixing member.

[0015] Optionally, an upper limit piece and a lower limit piece are provided at both ends of the mirror frame, the top surface of the shaft body contacts the bottom surface of the upper limit piece, and the bottom surface of the shaft body contacts the top surface of the lower limit piece.

[0016] Optionally, the rotating shaft assembly also includes a reset mechanism arranged in the shell, and the reset mechanism includes: an elastic member, a rotating member and a limiting portion formed at the top of the lower fixed member, the elastic member is sleeved on the shaft body, and one end abuts against the shell, and the other end abuts against the top surface of the rotating member, the rotating member is sleeved on the shaft body, and two limiting grooves are provided at its bottom end, and the limiting portion can be engaged with any of the limiting grooves.

[0017] Optionally, the limiting groove is an arc-shaped groove, and the two arc-shaped grooves are perpendicular to each other, and the upper surface of the limiting portion is an arc surface, and the arc surface can be engaged with any of the arc-shaped grooves.

[0018] Optionally, a first magnetic component is provided at one end of the temple near the hinge point between the temple and the frame, and a second magnetic component is provided at both ends of the frame. When the temple is in the open state, the first magnetic component and the second magnetic component are magnetically connected.

[0019] The present invention has the following advantages:

[0020] 1. The AR display device provided by the present invention comprises: a frame, an optical waveguide lens, a temple and an optical machine module. A groove is provided at both ends of the frame, and two optical waveguide lenses are provided on the frame. The two temples are hinged to the two ends of the frame respectively, that is, the temples can rotate. The temples have an open state when they are perpendicular to the frame, and can be worn on the user's head when the temples are in the open state. An optical machine module is provided at one end of each temple near the hinge point between it and the frame, and when the temple is in the open state, the optical machine module is located in the groove. When in use, the temple is opened, the optical machine module is located in the groove, and the light path can be irradiated on the part of the optical waveguide lens located in the groove, and the user can see the image information of the optical waveguide lens. After the optical machine module is set on the temple, the optical machine module can rotate with the temple, realizing the decoupling of the optical machine module and the frame, reducing the area and thickness of the frame, and the device is relatively light and thin as a whole, which is convenient for folding and storage.

[0021] 2. The AR display device provided by the present invention, the hinge assembly includes a reset mechanism arranged in the shell, and the reset mechanism includes: an elastic member, a rotating member and a limiting portion formed on the top of the lower fixing member, the elastic member is sleeved on the shaft body, and one end abuts against the shell, and the other end abuts against the top surface of the rotating member, the rotating member is sleeved on the shaft body, and two limiting grooves are arranged at its bottom end, and the limiting portion can be engaged with any limiting groove. Preferably, the limiting groove is an arc groove, the two arc grooves are perpendicular to each other, and the upper surface of the limiting portion is an arc surface, and the arc surface can be engaged with any arc groove. When the temples are in an open state (the temples are perpendicular to the frame) and a folded state (the temples are parallel to the frame), the limiting portion is respectively engaged with the two limiting grooves. When the angle between the temple and the frame is less than 45°, the limit part fails to match the limit groove. At this time, the elastic member has a tendency to drive the rotating member to rotate so that the limit groove on it is engaged with the limit part, that is, there is a tendency to drive the temple to be in a folded state; correspondingly, when the angle between the temple and the frame is 45°-90°, the elastic member also has a tendency to drive the rotating member to rotate so that the limit groove on it is engaged with the limit part, that is, there is a tendency to drive the temple to be in an open state. By setting a reset mechanism, the device is always in an open state or a folded state, which is convenient for users to wear or store.

[0022] 3. In the AR display device provided by the present invention, a first magnetic member is provided at one end of the temple near the hinge point between the temple and the frame, and a second magnetic member is provided at both ends of the frame. When the temple is in the open state, the first magnetic member and the second magnetic member are magnetically connected. The magnetic adsorption of the first magnetic member and the second magnetic member ensures that the temple remains stable when the device is in the working state, thereby ensuring that the optical machine module can output stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the AR display device in Example 1 of the present invention, in which the temples are in an open state;

[0025] Figure 2 This is a schematic diagram of the AR display device in Example 1 of the present invention, in which the temples are in a folded state;

[0026] Figure 3 This is a schematic diagram of the AR display device embodiment 1 of the present invention after the frame and temples are hidden;

[0027] Figure 4 This is an exploded schematic diagram of the rotating shaft assembly in Embodiment 1 of the AR display device of the present invention;

[0028] Figure 5 It is a cross-sectional view of the rotating shaft assembly in Embodiment 1 of the AR display device of the present invention;

[0029] Figure 6 A cross-sectional view of the rotating shaft assembly in Embodiment 1 of the AR display device of the present invention;

[0030] Figure 7 This is a schematic diagram of the temples in Example 2 of the AR display device of the present invention.

[0031] Description of reference numerals:

[0032] 1. Mirror frame, 101, upper limit piece;

[0033] 2. Optical waveguide lens;

[0034] 3. Temples;

[0035] 4. Optical machine module;

[0036] 5. Rotating shaft assembly, 501. Shaft body, 5011. Clamping portion, 5012. Annular groove, 502. Housing, 503. Upper fixing member, 504. Lower fixing member, 505. Circlip, 506. Elastic member, 507. Rotating member, 508. Limiting portion;

[0037] 6. A first magnetic member;

[0038] 7. A second magnetic member. DETAILED DESCRIPTION

[0039] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0043] Example 1

[0044] like Figure 1 , Figure 2 As shown, it is a preferred embodiment of the AR display device of the present invention. This AR display device can decouple the optical machine and the frame, so that the area and thickness of the frame are smaller, and the device as a whole is relatively light and thin.

[0045] The above-mentioned AR display device includes: a frame 1, an optical waveguide lens 2, a temple 3 and an optical machine module 4. Grooves are provided at both ends of the frame 1. Two optical waveguide lenses 2 are arranged on the frame 1 at intervals. Specifically, two identical optical waveguide lenses 2 are symmetrically arranged along the midline of the frame 1, and the two optical waveguide lenses 2 can be stuck on the bridge of the user's nose. The two temples 3 are hinged to the two ends of the frame 1 respectively. According to the different rotation angles of the temples 3, the temples 3 have an open state and a folded state. When the temples 3 are perpendicular to the frame 1, they are in an open state, and when the temples 3 are parallel to the frame 1, they are in a folded state. That is to say, the angle between the temples 3 and the frame 1 is in the range of 0° to 90°. Each temple 3 is provided with an optical module 4 at one end near the hinge point between the temple 3 and the frame 1, and when the temple 3 is in the open state, the optical module 4 is located in the groove, at which time the optical module 4 can emit a light path to the portion of the optical waveguide lens 2 located in the groove, and the corresponding optical function is realized through the optical waveguide lens 2, so that the user can finally see the image information. Fixing the optical module 4 on the temple 3 allows the optical module 4 to rotate with the temple 3, reducing the area and thickness of the frame 1, making the device as a whole thinner and lighter, and providing a better wearing experience for the user.

[0046] The temples 3 and the frame 1 are hingedly connected via a shaft assembly 5. Figures 3 to 6 As shown, the shaft assembly 5 includes: an axis body 501 and a shell 502, the axis body 501 is connected to the frame 1, the shell 502 is sleeved on the axis body 501, and the shell 502 can rotate around the axis body 501. Specifically, the shell 502 includes a main body in an approximately rectangular parallelepiped shape and a top plate arranged on the top surface of the main body, the four side surfaces of the main body are all planes, the intersection of two adjacent side surfaces is chamfered, and the main body has a cavity. The shape of the top plate is similar to the shape of the main body, but the outer edge size of the top plate is larger than the outer edge size of the main body, and the top plate is provided with a hole for the axis body 501 to pass through. The temple 3 is fixedly connected to the shell 502, and then the temple 3 can drive the shell 502 to rotate around the axis body 501 when driven by an external force.

[0047] Furthermore, the rotating shaft assembly 5 further includes: an upper fixing member 503 and a lower fixing member 504, both of which are sleeved on the shaft body 501, the upper fixing member 503 is located above the housing 502, and the top end of the shaft body 501 is engaged with the upper fixing member 503, and the lower fixing member 504 is located below the housing 502, and the bottom end of the shaft body 501 is engaged with the lower fixing member 504. Specifically, the upper fixing member 503 and the lower fixing member 504 have the same shape as the main body of the housing 502, and a card slot is provided at the corresponding position of the lens frame 1, and the upper fixing member 503 and the lower fixing member 504 are arranged in the card slot to achieve position fixing. The top of the shaft body 501 has a clamping portion 5011 protruding from the main body. Correspondingly, a clamping groove is provided on the upper fixing piece 503, and the clamping portion 5011 is clamped with the clamping groove. The bottom end of the shaft body 501 is provided with an annular groove 5012, and a retaining spring 505 is provided on the annular groove 5012, and the retaining spring 505 is clamped with the lower fixing piece 504.

[0048] In addition, an upper limit member 101 and a lower limit member are provided at both ends of the frame 1, the top surface of the shaft body 501 contacts the bottom surface of the upper limit member 101, and the bottom surface of the shaft body 501 contacts the top surface of the lower limit member. In this embodiment, the upper limit member 101 and the lower limit member are both semicircular plates. In other embodiments, the upper limit member 101 and the lower limit member can also be plates of other shapes such as triangles, but it must be ensured that they do not affect the rotation of the temples 3.

[0049] Further, the rotating shaft assembly 5 also includes a reset mechanism arranged in the housing 502, and the reset mechanism includes: an elastic member 506, a rotating member 507 and a limiting portion 508 formed at the top of the lower fixing member 504. The elastic member 506 is preferably a spring, which is sleeved on the shaft body 501, and one end abuts against the housing 502, and the other end abuts against the top surface of the rotating member 507. The rotating member 507 is sleeved on the shaft body 501, and two limiting grooves are arranged at its bottom end. The limiting portion 508 can be engaged with any limiting groove. Specifically, in this embodiment, the limiting groove is preferably an arc groove, and the two arc grooves are perpendicular to each other. The upper surface of the limiting portion is an arc surface, and the arc surface can be engaged with any arc groove. When the arc surface is engaged in two different arc grooves, the temple 3 is in an open state and a folded state, respectively. When the angle between the temple 3 and the frame 1 is between 0° and 45°, the arc surface fails to completely match the limiting groove. Under the action of the elastic member 506, there is a tendency for the rotating member 507 to rotate until the arc surface completely matches the limiting groove, that is, there is a tendency for the temple 3 to be in a folded state; and when the angle between the temple 3 and the frame 1 is between 45° and 90°, at this time, the arc surface also fails to completely match the limiting groove. Under the action of the elastic member 506, there is a tendency for the rotating member 507 to rotate until the arc surface completely matches the limiting groove, that is, there is a tendency for the temple 3 to be in an open state.

[0050] In other embodiments, the limiting portion 508 may also be in other shapes such as a triangle, and the shape of the limiting groove on the corresponding rotating member 507 should be adapted thereto.

[0051] In other embodiments, the included angle of the limit groove may be 60°, 120° or other angles. When the temple 3 is in the open state, the limit portion may not completely match the limit groove, as long as there is a tendency for the temple 3 to rotate outward.

[0052] The working process of the AR display device provided in this embodiment is described as follows:

[0053] Open the two temples 3 to make them perpendicular to the frame 1, and then wear them on the user's head. At this time, the optical module 4 is located in the groove of the frame 1, facing the optical waveguide lens 2. The light path of the optical module 4 is transmitted through the optical waveguide lens 2, and finally presents an image in front of the user.

[0054] Example 2

[0055] like Figure 7 As shown, the difference between this embodiment and embodiment 1 is that the shaft assembly 5 does not include a reset mechanism, but a first magnetic member 6 is provided on the temple 3, a second magnetic member 7 is provided on the frame 1, and the shaft body 501 is preferably a damping shaft, that is, the temple 3 can be rotated to any angle and maintained. The remaining structure is the same as the structure of the AR display device described in embodiment 1, so it is not repeated.

[0056] Specifically, a first magnetic component 6 is provided at one end of the temple 3 near the hinge point between the temple 3 and the frame 1, and a second magnetic component 7 is provided at both ends of the frame 1. When the temple 3 is in an open state, the first magnetic component 6 and the second magnetic component 7 are magnetically connected. The first magnetic component 6 and the second magnetic component 7 can stably maintain the temple 3 in the open state, thereby ensuring that the optical machine module 4 can work stably.

[0057] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An AR display device, characterized in that: include: A mirror frame (1), wherein both ends of the mirror frame (1) are provided with grooves; An optical waveguide lens (2), wherein two optical waveguide lenses (2) are arranged on the lens frame (1) at intervals; Temples (3), the two temples (3) being hinged to the two ends of the mirror frame (1) respectively, and the temples (3) being in an open state when they are perpendicular to the mirror frame (1); An optical-mechanical module (4) is provided at one end of each of the temples (3) close to a hinge point between the temple and the frame (1), and when the temples (3) are in the open state, the optical-mechanical module (4) is located in the groove.

2. The AR display device according to claim 1, characterized in that: The temples (3) and the frame (1) are hingedly connected via a rotating shaft assembly (5).

3. The AR display device according to claim 2, characterized in that: The rotating shaft assembly (5) comprises: an axis body (501) and a shell (502); the axis body (501) is connected to the mirror frame (1); the shell (502) is sleeved on the axis body (501) and the shell (502) can rotate around the axis body (501); and the temple (3) is fixedly connected to the shell (502).

4. The AR display device according to claim 3, characterized in that: The rotating shaft assembly (5) further comprises: an upper fixing member (503) and a lower fixing member (504), wherein the upper fixing member (503) and the lower fixing member (504) are both sleeved on the shaft body (501), the upper fixing member (503) is located above the shell (502), and the top end of the shaft body (501) is snap-fitted to the upper fixing member (503), and the lower fixing member (504) is located below the shell (502), and the bottom end of the shaft body (501) is snap-fitted to the lower fixing member (504).

5. The AR display device according to claim 4, characterized in that: The top end of the shaft body (501) has a clamping portion (5011) protruding from the main body, and a clamping slot is provided on the upper fixing member (503), and the clamping portion (5011) is clamped with the clamping slot.

6. The AR display device according to claim 4, characterized in that: The bottom end of the shaft body (501) is provided with an annular groove (5012), and a retaining spring (505) is provided on the annular groove (5012), and the retaining spring (505) is connected to the lower fixing member (504).

7. The AR display device according to claim 4, characterized in that: An upper limit piece (101) and a lower limit piece are provided at both ends of the mirror frame (1); the top surface of the shaft body (501) contacts the bottom surface of the upper limit piece (101), and the bottom surface of the shaft body (501) contacts the top surface of the lower limit piece.

8. The AR display device according to any one of claims 4 to 7, characterized in that: The rotating shaft assembly (5) also includes a reset mechanism arranged in the shell (502), and the reset mechanism includes: an elastic member (506), a rotating member (507) and a limiting portion (508) formed on the top of the lower fixing member (504); the elastic member (506) is sleeved on the shaft body (501), and one end of the elastic member abuts against the shell (502), and the other end abuts against the top surface of the rotating member (507); the rotating member (507) is sleeved on the shaft body (501), and two limiting grooves are arranged at the bottom end thereof, and the limiting portion (508) can be engaged with any of the limiting grooves.

9. The AR display device according to claim 8, characterized in that: The limiting groove is an arc-shaped groove, and the two arc-shaped grooves are perpendicular to each other. The upper surface of the limiting portion (508) is an arc surface, and the arc surface can be engaged with any of the arc-shaped grooves.

10. The AR display device according to claim 1, characterized in that: A first magnetic component (6) is provided at one end of the temple (3) close to the hinge point between the temple and the frame (1), and second magnetic components (7) are provided at both ends of the frame (1); when the temple (3) is in the open state, the first magnetic component (6) and the second magnetic component (7) are connected by magnetic attraction.

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