CN214097975U

CN214097975U - Interpupillary distance adjusting device and head-mounted display equipment

Info

Publication number: CN214097975U
Application number: CN202022866984.5U
Authority: CN
Inventors: 迟茗文; 李晓东
Original assignee: Goertek Optical Technology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-31
Anticipated expiration: 2030-12-02

Abstract

The application discloses interpupillary distance adjusting device and head-mounted display equipment, including support, control mechanism and two lens cones, control mechanism installs in the support, and control mechanism is connected with each lens cone to control each lens cone and be close to and keep away from the center of two lens cones. The application provides a interpupillary distance adjusting device can adjust the interval of two lens barrels, is applicable to the user of different interpupillary distances.

Description

Interpupillary distance adjusting device and head-mounted display equipment

Technical Field

The application relates to the technical field of virtual reality equipment, more specifically say, relate to a interpupillary distance adjusting device and head-mounted display equipment.

Background

Head-mounted display devices, including AR (Augmented Reality) devices, VR (Virtual Reality) devices, and MR (Mixed Reality) devices, are increasingly popular, with VR head-mounted devices being more outstanding. At present, VR devices each include a housing and a left and a right lens barrels, and the two lens barrels are fixedly mounted on the housing; meanwhile, the size of the VR equipment is not distinguished, and the specifications of the VR equipment of the same model are consistent.

The inventor finds in practice that the user population of the VR device is wide, and the interpupillary distances of different users are different. The VR equipment of fixed specification can't be applicable to multiple interpupillary distance, and after partial user worn the VR equipment, the interval of two lens barrels of VR equipment was great with user's actual interpupillary distance difference, and it is lower to lead to the travelling comfort after the user worn, and visual definition is relatively poor, and dizzy sense still can appear.

In summary, how to provide a head-mounted display device capable of being applied to different interpupillary distances is an urgent problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a pupil distance adjusting device and a head-mounted display apparatus, which can adjust the distance between two lens barrels and are suitable for users with different pupil distances.

In order to achieve the above purpose, the present application provides the following technical solutions:

a pupil distance adjusting device comprises a support, a control mechanism and two lens cones, wherein the control mechanism is arranged on the support and is connected with each lens cone and used for controlling each lens cone to be close to and far away from the centers of the two lens cones;

the control mechanism comprises a driving assembly, a gear and two racks, the gear is rotatably connected with the bracket through a pin shaft, the gear is positioned between the two racks, the racks are fixedly connected with the lens cones in a one-to-one correspondence manner, and each rack is in meshing transmission with the gear;

the driving assembly is connected with the gear and controls the gear to rotate, or the driving assembly is connected with the first rack and controls the first rack to move linearly.

Optionally, a guide mechanism is arranged on the support, and the guide mechanism is connected with each lens barrel and guides the lens barrel.

Optionally, the guiding mechanism includes a guiding shaft fixed to the support, each lens barrel is provided with a guiding ring, and the guiding ring of each lens barrel is sleeved on the periphery of the guiding shaft.

Optionally, the support includes a main support and a housing, the main support is disposed inside the housing, and the main support and the housing are fixed by bolts.

Optionally, drive assembly includes driving arm and slidable control assembly, the first end of driving arm with control assembly is articulated, the middle part of driving arm is equipped with middle part bar breach, the second end of driving arm is equipped with second end bar breach, and is first be equipped with on the rack and be located reference column in the middle part bar breach, the round pin axle is located in the second end bar breach.

Optionally, the control mechanism further comprises a fixing plate, the fixing plate is fixedly connected with the support, the periphery of the pin shaft is sleeved with the middle of the fixing plate, and the transmission arm is arranged between the fixing plate and the gear.

Optionally, the pupil distance adjusting device further comprises a shell top plate arranged at the top of the support, and the shell top plate is provided with a strip-shaped hole; the control assembly comprises an adjusting key, a slider and a bending edge, wherein the adjusting key is positioned above the top plate of the shell and is slidably arranged in the strip-shaped hole, the slider is fixedly connected with the adjusting key, the slider is arranged below the top plate of the shell, the bending edge is fixedly connected with the slider, and the bending edge is hinged with the first end of the transmission arm.

Optionally, the top plate of the housing is provided with scale marks for marking the positions of the adjusting keys.

The application also provides a head-mounted display device which comprises the pupil distance adjusting device.

Through above-mentioned scheme, this application provides a interpupillary distance adjusting device's beneficial effect lies in:

the application provides a interpupillary distance adjusting device includes support, control mechanism and two lens barrels, and control mechanism installs in the support, and control mechanism is connected with each lens barrel to control each lens barrel and be close to and keep away from the center of two lens barrels.

By using the pupil distance adjusting device, a user wears the support on the head, and adjusts the two lens cones to move towards the centers of the two lens cones or keep away from the centers of the two lens cones through the control mechanism, namely, the user can adjust the distance between the two lens cones according to the self requirement, so that the two lens cones are matched with the pupil distance of the eyes of the user. Therefore, the user wears the pupil distance adjusting device and then has high comfort level and high definition, and the user is not easy to feel dizzy.

In addition, it should be understood that the head-mounted display device provided by the present application includes the pupil distance adjusting apparatus, and therefore, the head-mounted display device provided by the present application also has the above-mentioned advantages.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a head-mounted display device according to an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of a part of a head-mounted display device according to an embodiment of the present disclosure;

FIG. 3 is an enlarged schematic view of a control mechanism provided in an embodiment of the present application;

fig. 4 is an exploded schematic view of a main bracket, a lens barrel and a guiding mechanism in a head-mounted display device according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram illustrating a main support and a lens barrel of a head-mounted display device according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram illustrating a structure of a bracket and a lens barrel in a head-mounted display device according to an embodiment of the present disclosure;

the reference numbers in the figures are:

the device comprises a bracket 1, a main bracket 11, a connecting column 111, a shell 12 and a connecting structure 121; the device comprises a control mechanism 2, a pin shaft 21, a gear 22, a rack 23, a driving component 24, a transmission arm 241, a middle strip-shaped notch 2411, a second end strip-shaped notch 2412, a control component 242, an adjusting key 2421, a slider 2422, a bent edge 2423, a fixing sheet 25 and a positioning column 26; lens barrel 3, guide ring 31; and a guide shaft 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The application provides a pupil distance adjusting device can use in head-mounted display equipment, and AR equipment, VR equipment, MR equipment all can use this pupil distance adjusting device. Taking VR devices as an example, please refer to fig. 1 to 6, the pupil distance adjusting device and the head-mounted display device provided by the present application include a support 1, a control mechanism 2 and a lens barrel 3.

The holder 1 functions to support the control mechanism 2 and the lens barrel 3.

The control mechanism 2 is mounted on the frame 1, and the control mechanism 2 is connected with each lens barrel 3 to control the movement of the lens barrel 3.

The two lens barrels 3 are arranged on the support 1 and are distributed in a bilateral symmetry mode, the centers of the two lens barrels are adjusting centers, and the two lens barrels 3 can be close to and far away from the adjusting centers along the connecting line of the two lens barrels. In the actual control process, in consideration of the symmetry of the human face, it is preferable that the two lens barrels 3 are synchronously close to the adjustment center or synchronously far from the adjustment center under the control of the control mechanism 2. It can be understood that the two lens barrels 3 are also moved independently, and the position can be adjusted.

The VR equipment of above-mentioned structure's beneficial effect lies in: when the pupil adjusting device is used, a user can control the two lens barrels 3 to move towards the adjusting center or keep away from the adjusting center through the control mechanism 2, so that the distance between the two lens barrels 3 is suitable for the pupil distance of the user, the wearing comfort level is improved, the definition is improved, and the vertigo feeling is reduced.

Further, in one embodiment, the support 1 includes a main support 11 and a housing 12, the main support 11 is provided inside the housing 12, and the main support 11 and the housing 12 are fixed by bolts. In practical applications, the housing 12 may specifically include a front cover and a rear cover, the front cover and the rear cover are buckled to form the complete housing 12, and a cavity is formed between the front cover and the rear cover to mount the main bracket 11 and the control mechanism 2. The main support 11 and the shell 12 are more convenient to detach through the bolt connection mode, in order to improve the fixed firmness, the connecting column 111 can be arranged on the main support 11, for example, the connecting column 111 is respectively arranged at four corners of the main support 11, correspondingly, the connecting structure 121 is correspondingly arranged on the shell 12, the connecting structure 121 and the connecting column 111 are in one-to-one correspondence, and the screw penetrates through the connecting column 111 and the connecting structure 121 to fix the main support 11 and the shell 12.

Further, in one embodiment, the control mechanism 2 includes a pin 21, a gear 22, a rack 23, a drive assembly 24, and a stator 25.

The pin 21 is inserted into the bracket 1 through a pin hole, or fixed to the bracket 1 by means of adhesion or the like.

The gear 22 is sleeved on the periphery of the pin shaft 21, and the gear 22 is rotatably connected with the bracket 1 through the pin shaft 21.

The number of the racks 23 is two, the two racks 23 correspond to the two lens barrels 3 one by one, and the corresponding racks 23 are fixedly connected with the lens barrels 3; the two racks 23 are distributed on two sides of the gear 22 in parallel, each rack 23 is in meshing transmission with the gear 22, when the gear 22 rotates, the two racks 23 synchronously move in opposite directions, and then the two lens barrels 3 are driven to synchronously approach or leave the adjusting center.

The driving assembly 24 is used for realizing synchronous and reverse movement of the two racks 23, and when in actual connection, the driving assembly 24 is connected with the gear 22 and directly controls the gear 22 to rotate, at this time, in the gear 22 and the racks 23, the gear 22 is used as an active element, and the two racks 23 are used as passive elements; or the driving assembly 24 is connected to the first rack 23 and directly pushes the first rack 23 to move linearly, at this time, the first rack 23 moves linearly to drive the gear 22 to rotate, and the gear 22 drives the second rack 23 to move linearly.

Optionally, in one embodiment, the drive assembly 24 includes an actuator arm 241 and a control assembly 242.

Wherein, the first end of transmission arm 241 is articulated with control assembly 242, and the middle part of transmission arm 241 is equipped with middle part bar breach 2411, and the second end of transmission arm 241 is equipped with second end bar breach 2412, and second end bar breach 2412 can adopt the shift fork form. Correspondingly, a positioning column 26 is disposed on the first rack 23, the positioning column 26 is located in the middle bar-shaped gap 2411 and can slide in the middle bar-shaped gap 2411, and the pin 21 is disposed in the second end bar-shaped gap 2412 and can slide in the second end bar-shaped gap 2412.

When the lens barrel is used, taking the angle shown in fig. 3 as an example, when the user manually operates to slide the control assembly 242 to the left, the upper end of the transmission arm 241 moves to the left, the pin 21 is fixed, the side wall of the middle strip-shaped gap 2411 drives the positioning column 26 to move to the left, so that the upper rack 23 and the lens barrel 3 connected with the rack 23 move to the left, and the lower rack 23 moves to the right.

With the structure of this embodiment, the moving distance of the control component 242 is greater than the moving distance of a single lens barrel 3, which is more convenient for the user to fine-tune the position of the lens barrel 3 and is easier to move the lens barrel 3 to the correct position.

Optionally, in an embodiment, the control component 242 includes an adjusting key 2421, a slider 2422 and a bending edge 2423, and correspondingly, the pupil distance adjusting device further includes a housing top plate disposed on the top of the support 1, where the housing top plate may be specifically disposed on the housing 12, or may be specifically disposed on the support 1, and the housing top plate is provided with a strip-shaped hole. The adjusting key 2421 is positioned above the top plate of the shell, and the adjusting key 2421 is slidably arranged in the strip-shaped hole; a slider 2422 is located below the housing top plate. In actual installation, the adjustment key 2421 and the slider 2422 are installed from the outer side and the inner side of the top plate of the housing respectively, the two can be fixed through screws or clamping or other methods, and when a user pushes the adjustment key 2421, the slider 2422 slides together with the adjustment key 2421. A bent edge 2423 may be formed by folding the slider 2422 downward, and the bent edge 2423 is hinged to the first end of the driving arm 241. By adopting the structure, a user can control the two lens cones 3 only by pushing the adjusting key 2421, and the operation is simpler and more convenient.

Optionally, in an embodiment, the top plate of the housing is provided with graduation marks for marking the position of the adjustment key 2421. When the lens barrel 3 is used, a user can visually know the position of the adjusting key 2421 through the scale marks, and the position adjusting process of the lens barrel 3 is further simplified.

The fixing piece 25 is fixedly connected with the bracket 1 through screws or other modes; the middle part of the fixing piece 25 is sleeved on the periphery of the pin shaft 21, and the fixing piece 25 and the pin shaft 21 can be in threaded connection or in clearance fit; meanwhile, the transmission arm 241 is arranged between the fixing plate 25 and the gear 22, the fixing plate 25 is matched with the support 1, the transmission arm 241 and the gear 22 are clamped in the middle of the fixing plate 25, the stability of the transmission arm 241 and the gear 22 after installation can be optimized through the fixing plate 25, and the transmission arm 241 and the gear 22 are prevented from being separated from the installation position. The fixing piece 25 may be omitted.

Further, in an embodiment, the support 1 is provided with a guiding mechanism, and the guiding mechanism is connected with each lens barrel 3 and provides a guiding function during the movement of the lens barrel 3, so as to improve the stability of the movement of the lens barrel 3. The guide mechanism may be omitted.

Optionally, in an embodiment, the guiding mechanism includes a guiding shaft 4, an axis of the guiding shaft 4 is parallel to a line connecting centers of the two lens barrels 3, the guiding shaft 4 may be disposed above and/or below the two lens barrels 3, and the guiding shaft 4 may be fixedly connected to the bracket 1 by a threaded connection or a snap connection or other means. Accordingly, each barrel 3 is provided with one or more than two guide rings 31, and the guide shaft 4 passes through the guide rings 31. When the lens barrel 3 moves, the guide ring 31 moves in the axial direction of the guide shaft 4, achieving a guiding effect.

Optionally, in another embodiment, the guiding mechanism includes a sliding groove, the sliding groove is formed in a side wall of the support 1, and correspondingly, the lens barrel 3 is provided with a sliding block, the sliding block is embedded into the sliding groove, and the sliding block and the sliding groove are in sliding fit to achieve a guiding effect.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The pupil distance adjusting device and the head-mounted display device provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The pupil distance adjusting device is characterized by comprising a support (1), a control mechanism (2) and two lens cones (3), wherein the control mechanism (2) is arranged on the support (1), the control mechanism (2) is connected with each lens cone (3) and controls each lens cone (3) to be close to and far away from the centers of the two lens cones (3);

the control mechanism (2) comprises a driving assembly (24), a gear (22) and two racks (23), the gear (22) is rotatably connected with the support (1) through a pin shaft (21), the gear (22) is located between the two racks (23), the racks (23) are fixedly connected with the lens cone (3) in a one-to-one correspondence manner, and each rack (23) is in meshing transmission with the gear (22);

the driving assembly (24) is connected with the gear (22) and controls the gear (22) to rotate, or the driving assembly (24) is connected with a first rack (23) and controls the first rack (23) to move linearly.

2. The interpupillary distance adjusting device of claim 1, wherein a guiding mechanism is provided on said holder (1), said guiding mechanism being connected to each of said lens barrels (3) and guiding said lens barrels (3).

3. The interpupillary distance adjusting device of claim 2, wherein the guiding mechanism comprises a guiding shaft (4) fixed on the support (1), and each lens barrel (3) is provided with a guiding ring (31) sleeved on the periphery of the guiding shaft (4).

4. The interpupillary distance adjusting device according to claim 1, wherein said support frame (1) comprises a main support frame (11) and a housing (12), said main support frame (11) being provided inside said housing (12), said main support frame (11) and said housing (12) being fixed by bolts.

5. The interpupillary distance adjusting device according to any one of claims 1 to 4, wherein the driving assembly (24) comprises a driving arm (241) and a slidable control assembly (242), a first end of the driving arm (241) is hinged to the control assembly (242), a middle bar-shaped notch (2411) is formed in the middle of the driving arm (241), a second end bar-shaped notch (2412) is formed in the second end of the driving arm (241), a positioning column (26) located in the middle bar-shaped notch (2411) is formed in the first rack (23), and the pin shaft (21) is located in the second end bar-shaped notch (2412).

6. The interpupillary distance adjusting device of claim 5, wherein the control mechanism (2) further comprises a fixing plate (25), the fixing plate (25) is fixedly connected with the support (1), the middle part of the fixing plate (25) is sleeved on the periphery of the pin shaft (21), and the transmission arm (241) is arranged between the fixing plate (25) and the gear (22).

7. The interpupillary distance adjusting device of claim 5, further comprising a top plate of a housing arranged on the top of the support (1), wherein the top plate of the housing is provided with a strip-shaped hole; the control assembly (242) comprises an adjusting key (2421), a slider (2422) and a bending edge (2423), the adjusting key (2421) is located above the top plate of the shell and is slidably arranged in the strip-shaped hole, the slider (2422) is fixedly connected with the adjusting key (2421), the slider (2422) is located below the top plate of the shell, the bending edge (2423) is fixedly connected with the slider (2422), and the bending edge (2423) is hinged to the first end of the transmission arm (241).

8. The interpupillary distance adjusting device of claim 7, wherein the top plate of the housing is provided with graduation marks for marking the position of the adjusting key (2421).

9. A head-mounted display device characterized by comprising the interpupillary distance adjustment apparatus according to any one of claims 1 to 8.