CN116009257A - A diopter adjustment system suitable for head-mounted display equipment - Google Patents

Abstract

The application discloses a diopter adjustment system suitable for a head-mounted display device, including a vision module, a mounting bracket, and an adjustment drive mechanism. The adjustment drive mechanism is used to drive the display module to move relative to the lens assembly to adjust the object distance. The embodiment of the application Among them, the above-mentioned diopter adjustment system suitable for head-mounted display equipment is adopted, and the driving mechanism is adjusted to realize the approach and distance of the display module to the lens assembly in a reciprocating manner, thereby adjusting the diopter of the visual module by changing the object distance. It is suitable for users with different vision conditions, and there is no need to set the starting and ending position monitoring and reset system in the stroke of the display module, which simplifies the diopter adjustment process and realizes the stepless adjustment of diopter. In addition, through the interaction between the sealed adjustment component and the dust-proof mechanism The cooperation ensures the air pressure balance in the vision module and improves its dustproof sealing performance, which is beneficial to improve the stability of the vision module's refraction adjustment process and the overall service life.

Description

A diopter adjustment system suitable for head-mounted display equipment

technical field

The invention relates to the technical field of extended reality, in particular to a diopter adjustment system suitable for a head-mounted display device.

Background technique

Extended reality, referred to as XR, refers to a human-computer interactive environment that is a combination of real and virtual, generated through computer technology and wearable devices. Extended reality includes augmented reality (AR), virtual reality (VR), mixed reality (MR) and other forms. In other words, XR is a general term, including AR, VR, and MR. There are several levels of XR, from virtual worlds with limited sensor input to fully immersive virtual worlds.

The current development of near-eye display technologies such as AR and VR has spawned a large number of wearable head-mounted display devices, which need to be worn in front of the eyes. Because many people are short-sighted and need to wear glasses, it is very inconvenient to wear a headset. Therefore, people hope that the head-mounted display device can have the function of adjusting the diopter, so that the head-mounted display device can also be used when not wearing glasses.

Many current head-mounted display devices such as VR do not have a diopter adjustment mechanism, or the adjustment mechanism is placed at the lens and requires manual adjustment. For head-mounted display devices without a diopter adjustment mechanism, myopia needs to put glasses inside the head-mounted device when using it, which not only increases the size of the display device, but also causes blurring, dizziness, etc. Discomfort; although the headset with manual diopter adjustment mechanism can be viewed without glasses, the adjustment device is often set at the lens and cannot be adjusted after wearing. It can only be pre-adjusted according to your own diopter, and it is difficult to achieve accurate fit. In order to ensure that the stroke of the adjustment mechanism is not affected by the air pressure, the overall sealing of the vision module is reduced, and there is a problem of dust ingress.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides a diopter adjustment system suitable for head-mounted display devices, which solves the problem that the existing VR, AR and other head-mounted display devices do not have the diopter adjustment function or the adjustment mechanism requires manual adjustment and poor sealing. , The problem of poor adaptation accuracy.

In order to achieve the above purpose, the present invention is achieved through the following technical solutions.

The present application provides a diopter adjustment system suitable for a head-mounted display device, including a visual module, a mounting bracket, and an adjustment drive mechanism. The adjustment drive mechanism is used to drive the display module to move relative to the lens assembly to adjust the object distance.

The vision module includes:

The lens assembly is arranged on the mounting bracket and is used for installing a refractive lens;

A seal adjustment assembly, including a fixed unit installed on the lens assembly and a driven unit that can be movably arranged in the lens assembly, and a telescopic seal is arranged between the fixed unit and the driven unit;

The display module is arranged on the driven unit and is used to display images;

The dust-proof mechanism is arranged on the driven unit, and is used to balance the air pressure inside the lens assembly and isolate external dust.

It is further defined that, in the above-mentioned diopter adjustment system suitable for head-mounted display devices, two of the vision modules are arranged symmetrically on the mounting bracket, and the adjustment drive mechanism is set with respect to the corresponding positions of the two vision modules. There are two.

Further defined, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the fixing unit includes:

a fixed bracket, fixedly arranged on the lens assembly;

The outer ring is adjusted and fixedly arranged on the fixed bracket.

Further defined, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the driven unit includes:

an adjusting inner ring having a profile smaller than said adjusting outer ring for relative movement with said adjusting outer ring;

The display bracket is fixedly arranged on the adjusting inner ring.

It is further defined that, in the above-mentioned diopter adjustment system applicable to a head-mounted display device, the telescopic seal is fixedly arranged between the inner wall of the adjustment outer ring and the outer end surface of the adjustment inner ring.

Further defined, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the dust-proof mechanism includes:

Air vents are arranged through the display bracket;

The waterproof and air-permeable membrane covers and is fixedly arranged on the waterproof and air-permeable holes.

It is further defined that the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein, the end surface of the display bracket close to the installation bracket is fixed with a pressing member, and the display module is arranged between the display bracket and the display bracket. The pressing parts are fastened between and by both.

It is further defined that the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein, the end surface of the display bracket close to the installation bracket is fixed with a pressing member, and the display module is arranged between the display bracket and the display bracket. The pressing parts are fastened between and by both.

Further defined, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the adjustment drive mechanism includes:

The protective cover is fixedly arranged on the end face of the mounting bracket away from the vision module;

A telescopic component is arranged in the protective cover and the telescopic end can drive the pressing part to move;

The power assembly is used to provide power input to the telescopic assembly.

To further define, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the telescopic assembly includes:

a sliding part arranged in the protective cover and spline-coupled with the protective cover;

A connecting piece is arranged in the protective cover and is rotatably connected with the protective cover;

a spring disposed between the slider and the mounting bracket;

The conflicting member is arranged through the installation bracket, and one end is fixedly connected to the sliding member, and the other end can resist the pressing member;

Wherein, the sliding member and the connecting member are in contact with each other through an annular slope, and when the connecting member rotates, the sliding member can be driven to reciprocate axially through the friction of the annular slope.

Further defined, the above-mentioned diopter adjustment system suitable for head-mounted display devices, wherein the power assembly includes:

The motor is arranged in the protective cover and fixedly connected with the mounting bracket;

The worm shaft is power-connected with the motor and engaged with the outer circular end surface of the connecting piece to form a worm gear combination.

The present invention has the following beneficial effects:

The distance between the display module and the lens assembly is adjusted by adjusting the driving mechanism, thereby adjusting the diopter of the visual module by changing the object distance, which is suitable for users with different vision conditions, and the display module is realized by adjusting the driving mechanism in a reciprocating manner. Approaching and moving away from the lens assembly, there is no need to set the starting and ending position monitoring and reset system in the stroke of the display module, which simplifies the diopter adjustment process and realizes the stepless adjustment of the diopter. In addition, through the interaction between the sealed adjustment assembly and the dust-proof mechanism The cooperation ensures the air pressure balance in the vision module and improves its dustproof sealing performance, which is conducive to maintaining the normal operation of each component in the vision module, improving the stability of the refraction adjustment process of the vision module and the overall service life.

Description of drawings

FIG. 1 is a schematic diagram of the specific structure of a diopter adjustment system applicable to a head-mounted display device according to an embodiment of the present application;

FIG. 2 is a structural exploded schematic diagram of a diopter adjustment system applicable to a head-mounted display device according to an embodiment of the present application;

FIG. 3 is a structural exploded schematic diagram of the "vision module 100";

Fig. 4 is a structural exploded schematic diagram of the "adjustment drive mechanism 300";

Fig. 5 is an exploded schematic diagram of the connecting structure of the "sliding part 303" and the "connecting part 304";

FIG. 6 is a schematic structural diagram of the "slider 303".

reference sign

Vision module-100, lens assembly-101, fixing bracket-102, telescopic seal-103, display bracket-104, display module-105, pressing piece-106, adjusting outer ring-107, adjusting inner ring-108, ventilation Hole-109, waterproof breathable membrane-110, mounting bracket-200, adjustment drive mechanism-300, conflicting part-301, spring-302, sliding part-303, connecting part-304, worm shaft-305, motor-306, protection cover-307.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The server provided by the embodiment of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Example 1:

As shown in Figures 1 to 6, the embodiment of the present application provides a diopter adjustment system suitable for head-mounted display devices, including a mounting bracket 200, and two visual modules 100 are symmetrically arranged on one side of the mounting bracket 200, The vision module 100 includes a lens assembly 101 arranged on the mounting bracket 200 and used for installing dioptric lenses. The lens assembly 101 is provided with a sealing adjustment assembly. The fixed bracket 102 on the lens assembly 101 is fixed with an adjustment outer ring 107 on the fixed bracket 102 .

The seal adjustment assembly also includes an adjustment inner ring 108 with a profile smaller than the adjustment outer ring 107, the adjustment inner ring 108 can pass through the adjustment outer ring 107 and generate relative movement with the adjustment outer ring 107, and the inner wall of the adjustment outer ring 107 is in contact with the adjustment outer ring 107. A telescoping seal 103 is fixed between the outer end surfaces of the adjusting inner ring 108, and a display bracket 104 is fixed on the adjusting inner ring 108, and the end surface of the display bracket 104 close to the mounting bracket 200 is fixed by a screw. 106 , a display module 105 is arranged between the display bracket 104 and the pressing member 106 , and the display module 105 is clamped and fixed by the pressing member 106 and the display bracket 104 .

The other side of the mounting bracket 200 is provided with two adjustment driving mechanisms 300 at the corresponding positions of the two vision modules 100. The adjustment driving mechanisms 300 are used to drive the display module 105 to reciprocate relative to the lens assembly 101 to adjust the object distance, and then adjust The diopter of the vision module 100 .

In the embodiment of the present application, the above-mentioned diopter adjustment system suitable for head-mounted display equipment is adopted, and the distance between the display module 105 and the lens assembly 101 is adjusted by adjusting the driving mechanism 300, so as to adjust the vision by changing the object distance. The diopter of the module 100 is suitable for users with different vision conditions, and the setting of the telescopic seal 103 prevents the diopter lens from being polluted by dust from inside the vision module 100, and can maintain the visual clarity of the vision module 100 for a long time. Improve user experience.

Example 2:

In this embodiment, in addition to the structural features of the previous embodiments, the display bracket 104 is provided with a dust-proof mechanism, and the dust-proof mechanism includes a ventilation hole 109 that is provided through the display bracket 104. The ventilation hole 109 is covered and fixedly provided with a waterproof breathable membrane 110 .

In this embodiment, due to the adoption of the above structure, when the display bracket 104 drives the display module 105 to move and adjust the diopter, the vent hole 109 ensures the air pressure balance on the side of the display bracket 104 away from the mounting bracket 200, while the The waterproof breathable film 110 can filter the air passing through the air hole 109 during the air pressure balance process, so as to prevent dust from contaminating the refractive lenses installed in the lens assembly 101 .

Example 3:

In this embodiment, in addition to the structural features of the previous embodiments, the adjustment drive mechanism 300 includes a protective cover 307 fixedly arranged on the end face of the mounting bracket 200 away from the vision module 100 at the corresponding position of the vision module 100. The protective cover 307 is provided with a telescopic assembly and a power assembly.

The telescoping assembly includes a sliding piece 303 splined to the protective cover 307, and the side of the sliding piece 303 away from the mounting bracket 200 is provided with an engaging piece 304 that is rotatably connected to the protective cover 307. The sliding piece 303 is connected to the mounting bracket 200 A spring 302 is arranged between them, and a resisting member 301 is provided through the installation bracket 200 , one end of the resisting member 301 is fixedly connected with the sliding member 303 , and the other end can resist the pressing member 106 .

The sliding member 303 and the connecting member 304 interfere with each other through the annular slope, and when the connecting member 304 rotates, the sliding member 303 can be driven to reciprocate axially through the friction of the annular slope.

The power assembly includes a motor 306 fixedly connected to the mounting bracket 200 , the motor 306 is power-connected with a worm shaft 305 , and the worm shaft 305 engages with the outer circular end surface of the adapter 304 to form a worm gear combination.

In this embodiment, due to the adoption of the above-mentioned structure, when the power assembly provides power input for the telescopic assembly, the connecting member 304 rotates through the annular inclined surface and drives the sliding member 303 to reciprocate axially, thereby realizing the display module 105 in a reciprocating manner. Approaching and moving away from the lens assembly 101, without setting the starting and ending position monitoring reset system in the stroke of the display module 105, simplifying the diopter adjustment process and realizing stepless diopter adjustment.

It should be noted that, in this document, the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims (10)

1. A diopter adjustment system suitable for head-mounted display equipment, characterized in that it includes a visual module, a mounting bracket, and an adjustment drive mechanism, and the adjustment drive mechanism is used to drive the display module to reciprocate relative to the lens assembly to adjust the object distance, The vision module includes: The lens assembly is arranged on the mounting bracket and is used for installing a refractive lens; A seal adjustment assembly, including a fixed unit installed on the lens assembly and a driven unit that can be movably arranged in the lens assembly, and a telescopic seal is arranged between the fixed unit and the driven unit; The display module is arranged on the driven unit and is used to display images; The dust-proof mechanism is arranged on the driven unit, and is used to balance the air pressure inside the lens assembly and isolate external dust. 2. A diopter adjustment system suitable for head-mounted display devices according to claim 1, wherein two of the vision modules are arranged symmetrically on the mounting bracket, and the adjustment driving mechanism is about two There are two corresponding positions of the vision modules. 3. A diopter adjustment system suitable for head-mounted display devices according to claim 1, wherein the fixing unit comprises: a fixed bracket, fixedly arranged on the lens assembly; The outer ring is adjusted and fixedly arranged on the fixed bracket. 4. A diopter adjustment system suitable for head-mounted display devices according to claim 3, wherein the driven unit comprises: an adjusting inner ring having a profile smaller than said adjusting outer ring for relative movement with said adjusting outer ring; The display bracket is fixedly arranged on the adjusting inner ring. 5. A diopter adjustment system suitable for head-mounted display devices according to claim 3 or 4, wherein the telescopic seal is fixedly arranged between the inner wall of the adjustment outer ring and the outer end surface of the adjustment inner ring between. 6. A diopter adjustment system suitable for head-mounted display devices according to claim 4, wherein the dust-proof mechanism comprises: Air vents are arranged through the display bracket; The waterproof and air-permeable membrane covers and is fixedly arranged on the waterproof and air-permeable holes. 7. A diopter adjustment system suitable for head-mounted display devices according to claim 4, wherein a pressing member is fixed on the end surface of the display bracket close to the side of the installation bracket, and the display module is set Between and fastened by the display bracket and the pressing member. 8. A diopter adjustment system suitable for head-mounted display devices according to claim 7, wherein the adjustment drive mechanism comprises: The protective cover is fixedly arranged on the end face of the mounting bracket away from the vision module; A telescopic component is arranged in the protective cover and the telescopic end can drive the pressing part to move; The power assembly is used to provide power input to the telescopic assembly. 9. A diopter adjustment system suitable for head-mounted display devices according to claim 8, wherein the telescopic assembly comprises: a sliding part arranged in the protective cover and spline-coupled with the protective cover; A connecting piece is arranged in the protective cover and is rotatably connected with the protective cover; a spring disposed between the slider and the mounting bracket; The conflicting member is arranged through the installation bracket, and one end is fixedly connected to the sliding member, and the other end can resist the pressing member; Wherein, the sliding member and the connecting member are in contact with each other through an annular slope, and when the connecting member rotates, the sliding member can be driven to reciprocate axially through the friction of the annular slope. 10. A diopter adjustment system suitable for head-mounted display devices according to claim 9, wherein the power assembly comprises: The motor is arranged in the protective cover and fixedly connected with the mounting bracket; The worm shaft is power-connected with the motor and engaged with the outer circular end surface of the connecting piece to form a worm gear combination.

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