Head-mounted display device

Abstract

The embodiment of the utility model provides head-mounted display equipment. The head-mounted display equipment comprises a main body part, an imaging element and a diopter adjusting lens, wherein the imaging element is arranged on the main body part; the diopter adjusting lens is arranged on the main body part in a magnetic attraction mode and covers one side of the imaging element, and the diopter adjusting lens is configured to be used for being matched with the diopter of a user. According to the embodiment of the invention, a new way is provided for assembling the diopter adjusting lens on the head-mounted display device.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of optical imaging technology, and more specifically, to a head-mounted display device. Background Art

[0002] AR or VR head-mounted display devices need to take into account consumers with prescription lenses, that is, myopia or hyperopia. At present, the usual solution is to install the prescription lenses in a frame module, and then assemble the frame module with the main body of the head-mounted display device. In this assembly method, the prescription lenses need to be assembled to the frame module first, and then assembled to the target position of the head-mounted display device through the frame module. This multiple assembly will cause the assembly accuracy of the prescription lenses to deteriorate, such as position offset, tilt and other undesirable phenomena, which will affect the user experience. Summary of the invention

[0003] The purpose of this application is to provide a new technical solution for a head-mounted display device.

[0004] In a first aspect, the present application provides a head-mounted display device, the head-mounted display device comprising:

[0005] Main body;

[0006] An imaging element, disposed in the main body; and

[0007] The diopter adjustment lens is arranged on the main body by magnetic attraction and covers one side of the imaging element. The diopter adjustment lens is configured to match the user's diopter.

[0008] Optionally, the diopter adjustment lens includes an optically effective area and a magnetic connection area located at the periphery of the optically effective area;

[0009] A first magnetic attraction member is arranged on the main body around the periphery of the imaging element;

[0010] The diopter adjustment lens is magnetically connected to the first magnetic component via the magnetic connection area.

[0011] Optionally, a second magnetic component that is magnetically attracted to the first magnetic component is disposed on the magnetic connection area, and the first magnetic component and the second magnetic component have opposite magnetic poles.

[0012] Optionally, one of the first magnetic attraction component and the second magnetic attraction component is a magnet, and the other of the first magnetic attraction component and the second magnetic attraction component is a magnetic metal component.

[0013] Optionally, the first magnetic member and the second magnetic member are both annular structures, and the shape and size of the first magnetic member match those of the second magnetic member.

[0014] Optionally, the first magnetic attraction member includes a plurality of first magnetic units, and the plurality of first magnetic units are arranged in an arc or ring shape at intervals;

[0015] The second magnetic attraction member includes a plurality of second magnetic units, the plurality of second magnetic units are arranged at intervals in an arc shape or a ring shape, and the second magnetic units are arranged in a one-to-one correspondence with the first magnetic units.

[0016] Optionally, a first positioning member is provided on the main body around the periphery of the imaging element;

[0017] The magnetic connection area on the diopter adjustment lens is provided with a second positioning member matching the first positioning structure;

[0018] Among them, one of the first positioning member and the second positioning member is provided with a protrusion, and the other is provided with a groove, and the protrusion extends into the groove to form a positioning fit with the groove.

[0019] Optionally, at least two of the first positioning members and the second positioning members are provided, and the first positioning members and the second positioning members are provided in a one-to-one correspondence, and at least two of the second positioning members are distributed at intervals along the circumference of the magnetic connection area.

[0020] Optionally, the protrusion is columnar and the cross-section of the free end is circular, and the groove is circular or track-shaped.

[0021] Optionally, the second magnetic component is embedded in the magnetic connection area (32) of the diopter adjustment lens during the molding process of the diopter adjustment lens by insert injection molding.

[0022] Optionally, the diopter adjustment lens is a plano-convex lens or a plano-concave lens.

[0023] Optionally, the imaging element is provided in two parts, namely a left-eye imaging element and a right-eye imaging element, so as to form a binocular optical system;

[0024] Wherein, a first magnetic attraction component is arranged on the periphery of any of the imaging elements.

[0025] One beneficial effect of this application is:

[0026] According to the head-mounted display device provided by the embodiment of the present application, a diopter adjustment lens is added to the imaging element to meet the viewing needs of users with different diopter. When the diopter adjustment lens is assembled on the head-mounted display device, the diopter adjustment lens can be directly magnetically attracted to the main body of the head-mounted display device by placing the magnetic attraction structure directly on the diopter adjustment lens, thereby reducing the influence of the frame assembly accuracy on the overall accuracy. The technical solution of the embodiment of the present application provides a new assembly method for setting the diopter adjustment lens on the head-mounted display device.

[0027] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0029] Figure 1 A schematic diagram of the structure of a head mounted display device provided in an embodiment of the present application;

[0030] Figure 2 A schematic diagram of the structure of a set of diopter adjustment lenses provided in an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a first positioning member and a second positioning member provided in an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a layout method after the first positioning member and the second positioning member provided in an embodiment of the present application cooperate with each other;

[0033] Figure 5 Two structural schematic diagrams of the groove structure provided in the embodiments of the present application.

[0034] Description of reference numerals:

[0035] 1. Main body; 2. Imaging element; 3. Vision adjustment lens; 31. Optically effective area; 32. Magnetic connection area; 4. First magnetic unit; 5. Second magnetic unit; 6. Groove; 7. Raised part. DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0038] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] The head mounted display device provided in the embodiment of the present application is described in detail below with reference to the accompanying drawings.

[0042] According to one aspect of an embodiment of the present application, a head-mounted display device is provided. The head-mounted display device may be an AR head-mounted display device or a VR head-mounted display device, and the specific form may be smart glasses or a smart helmet. The embodiment of the present application does not limit the specific type and form of the head-mounted display device.

[0043] The head mounted display device proposed in the embodiment of the present application, see Figure 1 and Figure 2 As shown, the head-mounted display device includes a main body 1, an imaging element 2 and a diopter adjustment lens 3; the imaging element 2 is arranged on the main body 1, the diopter adjustment lens 3 is arranged on the main body 1 by magnetic attraction and covers one side of the imaging element 2, and the diopter adjustment lens 3 is configured to match the user's diopter.

[0044] According to the head-mounted display device provided in the embodiment of the present application, a diopter adjustment lens 3 is provided on its main body 1, which can be used to match the diopter of different users, that is, to adjust the user's refractive power, so that myopic or hyperopic users can clearly see the imaging picture without wearing glasses.

[0045] In the head mounted display device provided in the embodiment of the present application, the diopter adjustment lens 3 is designed to be directly arranged on the main body 1 of the head mounted display device by magnetic attraction. In this way, it is not necessary to first assemble the diopter adjustment lens 3 in a special frame and then assemble the frame to the main body 1, thereby reducing the influence of the frame assembly accuracy on the overall assembly lens, and improving the assembly accuracy of the diopter adjustment lens 3 on the main body 1.

[0046] In the traditional assembly process, the above-mentioned diopter adjustment lens 3 is, for example, formed by liquid injection molding combined with a polishing process, which belongs to the field of lens processing, and the frame added thereto is an additional component that needs to be processed separately, thus forming two industries. At present, both industries are combined to prepare diopter adjustment lenses with frames, but fusion technology has not been considered in the field of lens processing. In view of this, the assembly scheme provided in the embodiment of the present application directly omits the frame, and designs the magnetic attraction structure to be directly injection molded onto the diopter adjustment lens 3, so that the formed diopter adjustment lens 3 can be directly magnetically attracted to the main body 1. In this way, there is no need to consider introducing frame processing in production.

[0047] In the head mounted display device provided in the embodiment of the present application, the vision adjustment lens 3 corresponds to the imaging element 2, so as to achieve the effect of adjusting the vision. The imaging element can be an optical system including a lens and an optical film, or an optical waveguide element, etc.

[0048] According to the head-mounted display device provided in the embodiment of the present application, by equipping the imaging element 2 with a diopter adjustment lens 3, the viewing needs of users with different diopter can be met. In addition, when assembling the diopter adjustment lens 3 on the head-mounted display device, by placing the magnetic attraction structure directly on the diopter adjustment lens 3, the diopter adjustment lens 3 can be directly magnetically attracted to the main body 1 of the head-mounted display device, thereby reducing the influence of the frame assembly accuracy on the overall accuracy. The technical solution of the embodiment of the present application provides a new assembly method for setting a diopter adjustment lens on a head-mounted display device.

[0049] It should be noted that the diopter adjustment lens 3 includes but is not limited to being arranged on the main body 1 only by magnetic attraction, and the magnetic attraction method can be replaced by structural assembly such as snap-on assembly. The assembly structure is formed during the lens injection molding process and directly assembled with the head mounted display device.

[0050] In some examples of this application, see Figure 2 The diopter adjustment lens 3 includes an optically effective area 31 and a magnetic connection area 32 located at the periphery of the optically effective area 31. A first magnetic member is disposed on the main body 1 around the periphery of the imaging element 2. The diopter adjustment lens is magnetically connected to the first magnetic member through the magnetic connection area 32.

[0051] The vision adjustment lens 3 can be made by liquid injection molding combined with polishing process. In order to reserve a magnetic connection area 32 on the vision adjustment lens 3, the diameter of the lens can be made larger during injection molding to reserve a magnetic position in the edge area.

[0052] On the main body 1 of the head-mounted display device, the first magnetic component is arranged around the periphery of the imaging element 2, so that the diopter adjustment lens 3 can be directly magnetically connected to the first magnetic component through the magnetic connection area 32, so as to magnetically adsorb the diopter adjustment lens 3 on the main body 1 and cover the imaging element 2.

[0053] The size of the magnetic connection area 32 should not affect the viewing of human eyes.

[0054] In some examples of the present application, a second magnetic component that is magnetically attracted to the first magnetic component is disposed on the magnetic connection area 32, and the first magnetic component and the second magnetic component have opposite magnetic poles.

[0055] By using the principle of opposite attraction between the first magnetic member and the second magnetic member, the diopter adjustment lens 3 can be fixed on the main body 1. In addition, the magnetic attraction method is relatively simple to assemble and disassemble, which is convenient for subsequent maintenance and replacement of the diopter adjustment lens 3.

[0056] In some examples of the present application, one of the first magnetic attraction component and the second magnetic attraction component is a magnet, and the other of the first magnetic attraction component and the second magnetic attraction component is a magnetic metal component.

[0057] The metal piece is, for example, iron, which is easy to obtain, does not increase the cost, and has good durability and long service life.

[0058] In some examples of the present application, the first magnetic member and the second magnetic member are both annular structures, and the shape and size of the first magnetic member match those of the second magnetic member.

[0059] The first magnetic attraction member and the second magnetic attraction member are both designed as an annular structure, so that the contact area between the two is large during magnetic attraction, the magnetic attraction effect is more stable, and the diopter adjustment lens 3 can be prevented from falling off.

[0060] Moreover, it is relatively simple to design the first magnetic attraction member and the second magnetic attraction member as an annular structure, which is easy to manufacture.

[0061] In some examples of this application, see Figure 1 , the first magnetic attraction member includes a plurality of first magnetic units 4, and the plurality of first magnetic units 4 are arranged in an arc or ring shape at intervals, see Figure 2 The second magnetic attraction member includes a plurality of second magnetic units 5, and the plurality of second magnetic units 5 are arranged at intervals in an arc shape or a ring shape, and the second magnetic units 5 and the first magnetic units 4 are arranged in a one-to-one correspondence.

[0062] That is to say, the first magnetic member and the second magnetic member can also be of intermittent design, through point-to-point magnetic attraction or line-to-line attraction. Compared with the ring structure design, this method is more flexible in the location of the magnetic member, can avoid some structures, and can also form a stable magnetic attraction, and can also save magnetic materials.

[0063] It should be noted that Figure 1 and Figure 2 illustratively shows one first magnetic unit 4 and one second magnetic unit 5. In practical applications, a plurality of the first magnetic unit 4 and the second magnetic unit 5 can be provided, and the specific number can be flexibly adjusted as needed.

[0064] In some examples of the present application, a first positioning member may be provided on the main body 1 around the periphery of the imaging element 2; a second positioning member matching the first positioning structure may be provided in the magnetic connection area 32 on the diopter adjustment lens 3; see Figure 3 One of the first positioning member and the second positioning member is provided with a protrusion 7, and the other is provided with a groove 6, and the protrusion 7 extends into the groove 6 to form a positioning fit with the groove 6.

[0065] In order to prevent the diopter adjustment lens 3 from being offset or skewed during assembly, it is possible to design an assembly position by alignment, so that the assembly accuracy can be guaranteed, thereby enabling the user to obtain a good visual experience.

[0066] In some examples of the present application, the number of each of the first positioning member and the second positioning member is at least two, and the first positioning member and the second positioning member are arranged in a one-to-one correspondence, and at least two of the second positioning members are distributed at intervals along the circumference of the magnetic connection area 32 .

[0067] See also Figure 3 The second positioning member is, for example, a groove 6, and the second positioning member can be set to two or three. In this case, the first positioning member is a protrusion 7, and the number of the protrusions matches that of the second positioning member. Figure 3 FIG. 5 shows that the protrusion 7 is inserted into the groove 6 to form a positioning fit.

[0068] Of course, the first positioning member may also be a groove 6 , and in this case, the second positioning member is a protrusion 7 .

[0069] In the solution provided in the embodiment of the present application, two or three of the first positioning members and the second positioning members may be provided. Figure 3 The dashed circle shown in Figure 3When three of the first positioning members and three of the second positioning members are provided, as shown in FIG. Figure 3 A layout of two solid circles and one dashed circle is shown.

[0070] Of course, the number of the first positioning members is not limited to two or three, and can be flexibly increased or decreased according to demand. The number of the second positioning members is the same as the number of the first positioning members.

[0071] In some examples of this application, see Figure 4 The protrusion 7 is columnar and the cross section of the free end is circular, and the groove 6 is circular or track-shaped.

[0072] See also Figure 4 In (a), the groove 6 can match the shape of the free end of the protrusion 7, and the groove 6 is a circular groove for easy positioning.

[0073] See also Figure 4 In (b), the groove 6 can also be designed to be in a runway shape. Such a design can provide a certain margin for the free end of the protrusion 7 to extend into the groove 6, so that the protrusion 7 extends into the groove 6, which is easier to assemble.

[0074] In some examples of the present application, the second magnetic component is embedded in the magnetic connection area 32 of the diopter adjustment lens 3 during the molding process of the diopter adjustment lens 3 by insert injection molding.

[0075] Specifically, when manufacturing the diopter adjustment lens 3, a magnetic component can be directly embedded therein, so that the diopter adjustment lens 3 has magnetic properties. In this way, the diopter adjustment lens 3 can be directly magnetically attached to the main body 1. This design can also eliminate the need for frame manufacturing and save costs.

[0076] In some examples of the present application, the diopter adjustment lens 3 is a plano-convex lens or a plano-concave lens.

[0077] The diopter adjustment lens 3 can be a myopia lens or a hyperopia lens.

[0078] In some examples of the present application, the imaging element 2 is provided in two, namely a left-eye imaging element and a right-eye imaging element, to form a binocular optical system; wherein a first magnetic attraction member is provided on the periphery of any of the imaging elements 2 .

[0079] It should be noted that the diopter adjustment lens 3 can be flexibly assembled according to needs, and for eyes with normal vision, it is not necessary to assemble the diopter adjustment lens 3.

[0080] See also Figure 1 , Figure 1Two diopter adjustment lenses 3 are shown, which can correspond to the left eye imaging element and the right eye imaging element respectively.

[0081] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0082] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A head mounted display device, characterized in that: include: A main body (1); An imaging element (2) is arranged on the main body (1); and a diopter adjustment lens (3), which is arranged on the main body (1) by means of magnetic attraction and covers one side of the imaging element (2), and the diopter adjustment lens (3) is configured to match the diopter of a user; The vision adjustment lens (3) comprises an optically effective area (31) and a magnetic connection area (32) located at the periphery of the optically effective area (31); A first magnetic attraction component is arranged on the main body (1) around the outer periphery of the imaging element (2); The diopter adjustment lens (3) is magnetically connected to the first magnetic attraction member via the magnetic attraction connection area (32).

2. The head mounted display device according to claim 1, characterized in that: The magnetic connection area (32) is provided with a second magnetic attraction component that is magnetically attracted to the first magnetic attraction component, and the first magnetic attraction component and the second magnetic attraction component have opposite magnetic poles.

3. The head mounted display device according to claim 2, characterized in that: One of the first magnetic attraction component and the second magnetic attraction component is a magnet, and the other of the first magnetic attraction component and the second magnetic attraction component is a magnetic metal component.

4. The head mounted display device according to claim 2, characterized in that: The first magnetic attraction member and the second magnetic attraction member are both annular structures, and the shape and size of the first magnetic attraction member match those of the second magnetic attraction member.

5. The head mounted display device according to claim 2, characterized in that: The first magnetic attraction member comprises a plurality of first magnetic units (4), and the plurality of first magnetic units (4) are arranged at intervals in an arc shape or a ring shape; The second magnetic attraction member comprises a plurality of second magnetic units (5), the plurality of second magnetic units (5) are arranged at intervals in an arc shape or a ring shape, and the second magnetic units (5) and the first magnetic units (4) are arranged in a one-to-one correspondence.

6. The head mounted display device according to any one of claims 2 to 5, characterized in that: A first positioning member is arranged on the main body (1) around the periphery of the imaging element (2); The magnetic connection area (32) on the vision adjustment lens (3) is provided with a second positioning piece matching the first positioning piece; One of the first positioning member and the second positioning member is provided with a protrusion (7), and the other is provided with a groove (6), and the protrusion (7) extends into the groove (6) to form a positioning fit with the groove (6).

7. The head mounted display device according to claim 6, characterized in that: The number of the first positioning member and the number of the second positioning member are both at least two, and the first positioning member and the second positioning member are arranged in a one-to-one correspondence, and at least two of the second positioning members are distributed at intervals along the circumference of the magnetic connection area (32).

8. The head mounted display device according to claim 6, characterized in that: The protrusion (7) is columnar and the cross section of the free end is circular, and the groove (6) is circular or track-shaped.

9. The head mounted display device according to claim 2, characterized in that: The second magnetic attraction component is embedded in the magnetic attraction connection area (32) of the diopter adjustment lens (3) during the molding process of the diopter adjustment lens (3) by means of insert injection molding.

10. The head mounted display device according to claim 1, characterized in that: The diopter adjustment lens is a plano-convex lens or a plano-concave lens.

11. The head mounted display device according to claim 1, characterized in that: The imaging element (2) is provided in two parts, namely a left-eye imaging element and a right-eye imaging element, so as to form a binocular optical system; Wherein, a first magnetic attraction component is arranged on the periphery of any of the imaging elements (2).

Images