CN219475924U

CN219475924U - VR optical module and head-mounted display equipment

Info

Publication number: CN219475924U
Application number: CN202321008804.7U
Authority: CN
Inventors: 黄浩; 卿启杰; 王旭; 王先恺
Original assignee: Shenzhen Huynew Technology Co ltd
Current assignee: Shenzhen Huynew Technology Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-08-04
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of head-mounted display equipment, and discloses a VR optical module and head-mounted display equipment, wherein the VR optical module comprises a base, a lens module, a display module and an adjusting device; the lens module is fixedly connected with the base; the display module is arranged between the base and the lens module and is provided with an inclined hole; the adjusting device comprises a driving mechanism and a movable piece, wherein the driving mechanism is connected with the base and the movable piece, the driving mechanism is used for driving the movable piece to linearly move, the movable piece is connected with a convex column inserted in the inclined hole, and when the movable piece linearly moves, the convex column is used for pushing the display module to be close to or far away from the lens module. The utility model provides a main current optical module solves the technical problem that leads to wear-type display device interpupillary distance accommodation limited because the volume is great when realizing adjusting diopter and can effectively alleviate optical module weight.

Description

VR optical module and head-mounted display equipment

Technical Field

The utility model relates to the technical field of head-mounted display equipment, in particular to a VR optical module and head-mounted display equipment.

Background

The existing head-mounted display device comprises two optical modules, wherein the two optical modules respectively correspond to the left eye and the right eye of a user, each optical module comprises a lens module and a display module, and light rays emitted by the display module are refracted on the lens module, so that a virtual image picture which is amplified and the position of the virtual image picture falls in the visual range of the eyes of the user is formed. However, since many users have myopia and the degree of myopia varies greatly, each optical module is usually equipped with a function of adjusting diopter, that is, adjusting the distance between the lens module and the display module until the user's eyes can clearly see the virtual image.

In the prior art, a display module in an optical module is usually designed to be fixed with a base into a whole, the lens module is designed to be movable, when diopter adjustment is performed, the lens module is moved to be close to or far away from the display module by rotating the lens module, the lens module with the structure has the problem of large volume, so that the optical module has the defects of large volume and large weight, the use requirement of a user on small volume and light weight of a head-mounted display device is not met, and moreover, the diopter adjustment is performed, meanwhile, due to the large volume of the optical module with the structure, two optical modules cannot be close to a smaller distance, and the pupil distance adjustment range of the two optical modules is limited greatly.

Disclosure of Invention

The utility model aims to provide a VR optical module and a head-mounted display device, which mainly solve the technical problem that the pupil distance adjusting range of the head-mounted display device is limited due to large volume while the diopter adjustment of the existing optical module is realized.

To achieve the purpose, the utility model adopts the following technical scheme:

a VR optical module comprising:

a base;

the lens module is fixedly connected with the base;

the display module is arranged between the base and the lens module and is provided with an inclined hole;

the adjusting device comprises a driving mechanism and a movable piece, wherein the driving mechanism is connected with the base and the movable piece, the driving mechanism is used for driving the movable piece to linearly move, the movable piece is connected with a convex column inserted in the inclined hole, and when the movable piece linearly moves, the convex column is used for pushing the display module to be close to or far away from the lens module.

In one embodiment, the protruding column is integrally formed with the movable member or formed separately.

In one embodiment, the display module is provided with a mounting and dismounting channel, one end of the mounting and dismounting channel is communicated with the inclined hole, the other end of the mounting and dismounting channel penetrates through the display module towards the direction that the display module is far away from the lens module, and the mounting and dismounting channel is used for allowing the convex column to be inserted into the inclined hole or allowing the convex column to leave the inclined hole.

In one embodiment, the moving direction of the movable part moving linearly is not parallel to or perpendicular to the inclined direction of the inclined hole.

In one embodiment, the movable member is provided with a rack portion, and the driving mechanism includes at least one gear engaged with the rack portion, and the gear is rotatably connected with the base.

In one embodiment, the drive mechanism includes a first gear, a second gear, and a drive rack;

the first gear and the second gear are fixed coaxially and are both in rotational connection with the base, the first gear is meshed with the rack part on the movable piece, the driving rack is meshed with the second gear, and the driving rack is limited on the base and can only move linearly relative to the base.

In one embodiment, the direction of movement of the drive rack relative to the base and the direction of movement of the moveable member relative to the base are opposite.

In one embodiment, the VR optical module further includes a first pressing bar and a second pressing bar fixedly connected to the base, where the first pressing bar and the base clamp the movable piece together and make the movable piece move linearly only along the length direction of the first pressing bar, and the second pressing bar and the base clamp the driving rack together and make the driving rack move linearly only along the length direction of the second pressing bar.

In one embodiment, the periphery of the display module is penetrated with a guide shaft, an elastic piece is sleeved on the outer wall of the guide shaft, and the display module is contacted with the hole wall of the inclined hole by the acting force of the elastic piece.

The application also provides a head-mounted display device, which comprises two VR optical modules according to any one of the technical schemes.

Compared with the prior art, the VR optical module provided by the utility model has at least the following beneficial effects:

according to the technical scheme, the lens module is designed to be fixed on the base, and under the condition that diopter adjustment is achieved by adjusting movement of the display module, the volume of the lens module can be smaller, so that the volume of the VR optical modules is smaller, the distances between the two VR optical modules can be closer, and the pupil distance adjustment range of the two VR optical modules is enlarged. In addition, because the lens module is fixed, the position on the outer wall of the lens module, which is close to the nose bridge, can be cut, so that the distance between the two VR optical modules can be further closed, the pupil distance adjusting range of the two VR optical modules is further enlarged, and the weight of the optical modules can be further reduced.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a VR optical module according to a first embodiment of the present application;

fig. 2 is an exploded view of a VR optical module according to an embodiment of the present disclosure;

fig. 3 is an exploded view of a VR optical module at another angle according to an embodiment of the present application;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is a first exploded view of the movable member and the display module according to the first embodiment of the present application;

fig. 6 is a second exploded view of the movable member and the display module according to the first embodiment of the present application.

Wherein, each reference sign in the figure:

10. a base; 20. a lens module; 30. a display module; 301. inclined holes; 302. assembling and disassembling the channel; 40. an adjusting device; 401. a driving mechanism; 4011. a first gear; 4012. a second gear; 4013. a drive rack; 402. a movable member; 4021. a rack portion; 4022. a plug hole; 403. a convex column; 50. a first batten; 60. a second pressing bar; 70. a guide shaft; 80. an elastic member.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship based on that shown in the drawings, merely to facilitate the description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

Example 1

Referring to fig. 1 to 5, the present embodiment provides a VR optical module, which includes a base 10, a lens module 20, a display module 30 and an adjusting device 40. The lens module 20 is fixed on the base 10, the display module 30 is limited between the base 10 and the lens module 20, the display module 30 is used for displaying images, and the lens module 20 is used for refracting light rays emitted by the display module 30 to form an enlarged virtual image.

Referring to fig. 1 to 5 again, the adjusting device 40 specifically includes a driving mechanism 401 and a movable member 402, the driving mechanism 401 connects the base 10 and the movable member 402, the driving mechanism 401 is used for driving the movable member 402 to move linearly along the positive direction or the negative direction of the X-axis, the movable member 402 is connected with a protruding column 403, the protruding column 403 and the movable member 402 can be integrally formed as shown in fig. 5, the protruding column 403 and the movable member 402 can be separately formed as shown in fig. 6, the movable member 402 is provided with a plugging hole 4022, and the plugging hole 4022 is used for plugging the separated protruding column 403. In addition, the display module 30 is provided with the inclined hole 301, the inclined direction of the inclined hole 301 is not parallel to or perpendicular to the X axis, the inclined hole 301 may be a blind hole which does not penetrate through the display module 30, the inclined hole 301 may be a through hole which penetrates through the display module 30, the convex column 403 is inserted into the inclined hole 301, and when the movable member 402 is driven by the driving mechanism 401 to linearly move along the X axis, the convex column 403 can squeeze the hole wall of the inclined hole 301, so that the display module 30 approaches to or departs from the lens module 20, thereby realizing the diopter adjusting function.

In an implementation, the display module 30 may include a display screen, or a combination of a display screen and a lens. When the display module 30 includes a lens, it can be understood in particular that: the lenses of the VR optics module are divided into two parts, one part of the lenses being fixed to the lens module 20 and the other part of the lenses moving with the display screen.

Referring to fig. 2, 4 and 5, the display module 30 is further provided with a mounting/dismounting channel 302, one end of the mounting/dismounting channel 302 is connected to the inclined hole 301, the other end of the mounting/dismounting channel 302 penetrates the display module 30 in a direction of the display module 30 facing away from the lens module 20, and the aperture of the mounting/dismounting channel 302 is slightly larger than the external dimension of the protruding pillar 403.

Specifically, during installation, the movable member 402 may be limited on the base 10 in advance by using the first pressing strip 50, so that the movable member 402 can only linearly move relative to the base 10 along the length direction of the first pressing strip 50 under the common clamping of the first pressing strip 50 and the base 10, then the movable member 402 is moved to a suitable position on the base 10, so that the boss 403 on the movable member 402 can be opposite to the mounting and dismounting channel 302 on the display module 30, then the display module 30 and the base 10 are butted with each other, the boss 403 on the movable member 402 enters into the inclined hole 301 along the mounting and dismounting channel 302, finally the lens module 20 is fixed on the base 10, and the display module 30 is limited between the base 10 and the lens module 20. When the lens module 20 is detached from the base 10, the movable member 402 is moved to a proper position, so that the protruding columns 403 on the movable member 402 just face the detachment channel 302, at this time, the display module 30 and the base 10 can be easily separated from each other, and when the display module 30 and the base 10 are separated from each other, the protruding columns 403 are far away from the inclined holes 301 along the detachment channel 302. As can be seen from the above, the VR optical module has the advantage of easy assembly and disassembly by designing the assembly and disassembly channel 302.

Referring to fig. 1 to 5, the movable member 402 is provided with a rack portion 4021, and correspondingly, the driving mechanism 401 includes at least one gear engaged with the rack portion 4021, and the gear should be mounted on the base 10 and capable of freely rotating on the base 10. Specifically, the driving mechanism 401 includes a first gear 4011, a second gear 4012 and a driving rack 4013, wherein the first gear 4011 and the second gear 4012 are coaxially and fixedly connected, and the first gear 4011 and the second gear 4012 are both mounted on the base 10 and can rotate freely relative to the base 10, the first gear 4011 and the rack portion 4021 on the movable member 402 are meshed with each other, the second gear 4012 and the driving rack 4013 are meshed with each other, the driving rack 4013 is clamped by the second pressing bar 60 and the base 10 together, so that the driving rack 4013 is limited on the base 10 and can only move linearly along the length direction of the second pressing bar 60, preferably, the moving direction of the driving rack 4013 is also parallel to the X axis, and the moving direction of the driving rack 4013 relative to the base 10 and the moving direction of the movable member 402 relative to the base 10 are opposite. Specifically, when the driving rack 4013 moves along the positive direction of the X axis, the driving rack 4013 drives the second gear 4012 and the first gear 4011 to rotate synchronously, and further drives the movable element 402 to move along the negative direction of the X axis; when the driving rack 4013 moves in the opposite direction of the X-axis, the movable element 402 moves in the forward direction of the X-axis. By arranging the specific driving mechanism 401, a user can drive the movement of the movable part 402 inside by controlling the movement of the driving rack 4013 outside the VR optical module, so as to achieve the purpose of adjusting diopter.

Referring to fig. 1 to 3, the periphery of the display module 30 is perforated with the guide shafts 70, one end of the guide shafts 70 is fixed on the base 10, the other end of the guide shafts 70 is fixed on the lens module 20, the display module 30 can move along the axial direction of the guide shafts 70, the outer wall of the guide shafts 70 is sleeved with the elastic member 80, the elastic member 80 is preferably a spring, one end of the elastic member 80 abuts against the lens module 20, the other end of the elastic member 80 abuts against the display module 30, after the display module 30 receives the acting force of the elastic member 80, the walls of the convex column 403 and the inclined hole 301 abut against each other, so that the fit gap between the convex column 403 and the inclined hole 301 is eliminated, and accordingly, when the movable member 402 moves slightly and linearly along the X axis, the display module 30 can move slightly and be correspondingly close to or far away from the lens module 20, and further, and in addition, by providing the elastic member 80, the resistance of the movement of the display module 30 can also be properly increased, namely the resistance of the driving rack 4013 to move linearly, so that the diopter can be adjusted to a proper range of eyes.

To sum up, the VR optical module of this technical solution is designed to fix the lens module 20 on the base 10, and under the condition of adjusting diopter by adjusting the movement of the display module 30, the volume of the lens module 20 can be smaller, so that the volume of the VR optical module is smaller, and the distances between the two VR optical modules can be closer, i.e. the pupil distance adjusting range of the two VR optical modules is enlarged. In addition, since the lens module 20 is fixed, the outer wall of the lens module 20 near the nose bridge can be cut to make the distance between the two VR optical modules further approach, thereby further expanding the pupil distance adjustment range of the two VR optical modules and further effectively reducing the weight of the optical modules.

Example two

The embodiment also provides a head-mounted display device, which comprises a mounting frame and the VR optical modules in the first embodiment, wherein the two VR optical modules are connected to the mounting frame, and the user can see 3D virtual reality pictures in the head-mounted mode through binocular imaging of the two VR optical modules. In this embodiment, the mounting frame may be provided with a pupil distance adjusting mechanism, and the pupil distance adjusting mechanism is used to adjust the distance between the two VR optical modules, so as to meet the use requirements of users with different pupil distances, where the pupil distance adjusting mechanism is in the prior art and is not described here.

The head-mounted display device of the present embodiment adopts the VR optical module of the first embodiment, so that the head-mounted display device of the present embodiment has the advantages of small size, light weight, and large pupil distance adjustment range.

The foregoing description of the preferred embodiments of the present utility model has been provided for the purpose of illustrating the general principles of the present utility model and is not to be construed as limiting the scope of the utility model in any way. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model, and other embodiments of the present utility model as will occur to those skilled in the art without the exercise of inventive faculty, are intended to be included within the scope of the present utility model.

Claims

1. A VR optical module comprising:

a base;

the lens module is fixedly connected with the base;

2. The VR optical module as set forth in claim 1 wherein the post is integrally formed with the movable member or separately formed.

3. The VR optical module as set forth in claim 1 wherein said display module is provided with a mounting/dismounting channel, one end of said mounting/dismounting channel is connected to said inclined hole, the other end of said mounting/dismounting channel extends through said display module in a direction away from said lens module, said mounting/dismounting channel is used for inserting said post into said inclined hole or for leaving said post from said inclined hole.

4. The VR optical module as set forth in claim 1, wherein the moving direction of the movable member for linear movement is not parallel or perpendicular to the tilting direction of the inclined hole.

5. The VR optical module as set forth in claim 1 wherein said movable member is provided with a rack portion, and said drive mechanism includes at least one gear intermeshed with said rack portion, said gear being rotatably coupled to said base.

6. The VR optical module as set forth in claim 5 wherein the drive mechanism comprises a first gear, a second gear, and a drive rack;

7. The VR optical module as set forth in claim 6 wherein the drive rack is moved in a direction opposite to the base and the movable member is moved in a direction opposite to the base.

8. The VR optical module as set forth in claim 6 further comprising a first bead and a second bead fixedly connected to the base, respectively, the first bead and the base jointly clamping the movable member and enabling the movable member to move only linearly along the length of the first bead, and the second bead and the base jointly clamping the driving rack and enabling the driving rack to move only linearly along the length of the second bead.

9. The VR optical module as set forth in claim 1, wherein guide shafts are respectively disposed around the display module, elastic members are sleeved on the outer walls of the guide shafts, and the display module is forced by the elastic members to make the convex columns abut against the walls of the inclined holes.

10. A head-mounted display device comprising a mounting frame and two VR optical modules as set forth in any one of claims 1 to 9 attached to the mounting frame.