CN219614330U - Vision correction structure and head-mounted display device - Google Patents

Abstract

The utility model relates to a vision correction structure and a head-mounted display device; the vision correction structure comprises a display unit, a first diopter adjusting module and a second diopter adjusting module, wherein the first diopter adjusting module is arranged in the head-mounted display device and can carry out diopter adjustment on imaging light rays of the display unit, the second diopter adjusting module can be detachably connected with the display unit, and a projection area of the second diopter adjusting module can cover an exit pupil area of the display unit along the direction of the imaging light rays of the display unit; meanwhile, the vision defect correction device has the advantages that the vision defect correction device is provided with the first diopter adjusting module and the second diopter adjusting module, can be suitable for a larger range of vision defect people, can be used for correcting and adjusting diopters, can be used for adapting to other vision defects, and is better in use experience.

Description

Vision correction structure and head-mounted display device

Technical Field

The present utility model relates to a vision correction structure and a head-mounted display device.

Background

More and more head-mounted display devices are used by people, such as Virtual Reality (VR) glasses, augmented Reality (AR) glasses and the like, and some of the head-mounted display devices currently adopt a diopter adjustment function in order to adapt to more user groups and to facilitate the direct use of myopic users;

however, the diopter adjustment function in the currently marketed head-mounted display device has the following problems:

because diopter adjustment of the head-mounted display device at present depends on mechanical movement of a display screen and/or an optical lens, the distance of movement of the display screen and/or the optical lens is limited in consideration of the reasons of volume, weight, picture distortion and the like, the adjustable range of diopter function is smaller, and the current range is within 0-500 ℃, so that higher myopia people cannot be covered;

the vision defect users such as hyperopia, presbyopia and the like can not be normally used only by diopter correction for myopia people;

the diopter can be adjusted only, astigmatism and the like cannot be adjusted, and the experience of the user is poor.

Disclosure of Invention

The present utility model is directed to a vision correction structure, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a vision correction structure, includes display element, first diopter adjustment module and second diopter adjustment module, and first diopter adjustment module sets up and can carry out diopter adjustment to the imaging light of display element in wear display device, and second diopter adjustment module can be connected with the display element is removable, along the direction of display element imaging light, and the projection area of second diopter adjustment module can cover the exit pupil region of display element.

Further, the first diopter adjusting module only adjusts the display imaging light path, and the second diopter adjusting module can adjust the display imaging light path and the external real light path.

Further, the second diopter adjustment module includes at least one optical lens group capable of correcting a portion of the vision defect, such as astigmatism and/or diopter.

Further, in order to meet the requirement that a plurality of different user groups can quickly and conveniently use the vision second diopter adjustment module, the diopter values of the plurality of optical lens groups are in an arithmetic progression, the maximum diopter value which can be adjusted by the first diopter adjustment module is b, the minimum diopter value which can be adjusted by the first diopter adjustment module is a, the absolute value of the diopter value difference value of two adjacent optical lens groups is c, and in the vision second diopter adjustment module, the diopter absolute value of the optical lens group with the smallest diopter absolute value is d, b-a is larger than or equal to c and b is larger than or equal to d.

More preferably, for ease of use, the diopter value of the first diopter adjustment module can be adjusted starting from 0, i.e. a is 0.

Further, in order to facilitate the quick connection of the second diopter adjusting module and the reality unit, the vision correcting structure of the head-mounted display device further comprises a nose pad, the second diopter adjusting module is detachably connected with the display unit through the nose pad, the optical lens group comprises an optical lens and an optical lens frame, the optical lens setting value is on the optical lens frame, a nose pad buckle is further arranged on the lens frame, a nose pad jack is arranged on the display unit, and the nose pad can penetrate through the nose pad buckle and then be clamped in the nose pad jack.

Further, in order to facilitate the use of the dual-purpose head-mounted display device and facilitate the rapid wearing and the production and the manufacture, the number of the first diopter adjusting modules is two, and the first diopter adjusting modules are respectively arranged for two eyes; two second diopter adjusting modules are respectively arranged for the two first diopter adjusting modules, and the two optical lens groups for two eyes share one optical lens frame;

further, in order to facilitate mass production on a large scale, to facilitate faster assembly and use by more people, the diopter values of the optical lenses in the two optical lens groups are the same.

More further, the nose holds in the palm and adopts elasticity buckle structure with the jack, specifically does: an elastic claw is arranged on the nose pad, a nose pad clamping groove is formed in the inner wall of the nose pad insertion hole, and after the nose pad is inserted into the nose pad insertion hole, the elastic claw can extend into the nose pad clamping groove.

Further, in order to reduce the movement of the nose pad after being inserted into the nose pad insertion hole and ensure the use stability, the bottom of the nose pad insertion hole is provided with a first positioning surface, a second positioning surface is arranged on the nose pad corresponding to the first positioning surface, after the nose pad is inserted into the nose pad insertion hole, the first positioning surface can be attached to the second positioning surface and is attached to the second positioning surface, an elastic claw is arranged in a nose pad clamping groove, a protruding part is arranged on the nose pad, and a glasses frame can be clamped above the protruding part; the nose pad can be conveniently pulled out from the nose pad insertion hole by a user through the protruding portion on the nose pad, and the nose pad is convenient to detach and replace.

In order to shake the optical lens group after being assembled with the nose pad, the optical lens group is limited to move downwards, the nose pad buckle is in a C-shaped structure and is provided with an opening, positioning openings are respectively formed in two sides of the opening, and the positioning openings can be clamped on the protruding portions to be in contact with the protruding portions.

A head mounted display device comprising the vision correction structure of any one of the above.

The utility model aims to provide a vision correction structure which is provided with a first diopter adjusting module and a second diopter adjusting module, so that a larger range of vision defect people can be adapted, diopter correction adjustment can be performed, other vision defects can be adapted, and the use experience is better.

The present utility model will be further described in detail below with reference to specific embodiments and associated drawings for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

Drawings

Fig. 1 is a schematic diagram of a vision correction structure and a head-mounted device according to an embodiment of the present utility model;

fig. 2 is a schematic perspective view of a vision correction structure and a headset according to an embodiment of the present utility model;

FIG. 3 is an exploded perspective view of a vision correction structure and a headset according to an embodiment of the present utility model;

fig. 4 is a schematic view of a three-dimensional connection structure of a second diopter adjustment module and a nose pad according to an embodiment of the present utility model;

fig. 5 is a schematic perspective view of a second diopter adjustment module of a vision correction structure according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a nose pad of a vision correction architecture according to an embodiment of the present utility model;

FIG. 7 is an enlarged schematic view of a partial structure section of a vision correction structure according to an embodiment of the present utility model;

fig. 8 is an enlarged schematic view of a part of a vision correction structure according to an embodiment of the present utility model.

Description of the reference numerals: the device comprises a 1-display unit, a 2-first diopter adjusting module, a 3-second diopter adjusting module, a 4-optical lens group, a 5-nose pad, a 6-optical lens, a 7-optical lens frame, an 8-nose pad buckle, a 9-nose pad jack, a 10-elastic claw, a 11-nose pad clamping groove, a 12-first positioning surface, a 13-second positioning surface, a 14-protruding part, a 15-opening and a 16-positioning notch.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions related to the present utility model are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

It should be noted that the terms "first," "second," and the like in this disclosure are merely used to distinguish between different devices, modules, or units and are not used to define an order or interdependence of functions performed by the devices, modules, or units.

It should be noted that references to "one", "a plurality" and "a plurality" in this disclosure are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be understood as "one or more" unless the context clearly indicates otherwise.

More and more head-mounted display devices, such as AR glasses and VR glasses, are designed with diopter adjusting functions, and currently, the function is realized by rotating a knob to drive a screw to rotate and displace, so as to move a display screen and/or an optical lens, for example, the disclosure is as follows: as described in the chinese patents CN215813558U and CN109564348a, the adjusting range of diopter of such a solution depends on the distance moved by mechanical means, and in view of the requirements of volume, weight and the like, it is difficult to adapt to the higher diopter range, and only adapt to near-sighted users, and there is no adaptation to hyperopia, presbyopia and the like, in addition, in the diopter adjusting process, problems such as distortion of pictures, shrinkage of FOV and the like can be caused, and the larger the distance moved generally, the more obvious these effects are, so that it is difficult to ensure excellent imaging effect even if there is this function, and furthermore, such a solution can only adapt to myopia, in fact, the diopter is not only myopia, but also includes vision defects such as hyperopia, presbyopia and astigmatism, so on, so that this group cannot bring good experience effect through such a solution;

the first diopter adjusting module 2 is not provided on the market, the optical lens 6 is directly installed for correction and adaptation, but people with different eyesight need to be matched with the lens separately, the use is very inconvenient, the applicability is poor, and in view of the fact, the patent provides a comprehensive scheme; the method comprises the following steps:

1-3, specifically a vision correction structure, which comprises a display unit 1, a first diopter adjustment module 2 and a second diopter adjustment module 3, wherein the first diopter adjustment module 2 is arranged in a head-mounted display device and can carry out diopter adjustment on imaging light rays of the display unit 1, the second diopter adjustment module 3 can be detachably connected with the display unit 1, in order to ensure that displayed picture contents can be corrected by the second diopter adjustment module 3, and along the direction of the imaging light rays of the display unit 1, a projection area of the second diopter adjustment module 3 can cover an exit pupil area of the display unit 1; the first diopter adjusting module 2 in this technical scheme may adopt a publication number: the proposal in the Chinese patent of CN215813558U and CN109564348A adjusts diopter by rotating a knob and the like to adjust the position of a display screen and/or a lens, and is suitable for wearing by myopic people; more preferably, as shown in fig. 1, in an Augmented Reality (AR) head-mounted display device, the scheme in chinese patent publication No. CN217932289U may be adopted to reduce the effect of FOV reduction during adjustment of the first diopter adjustment module 2;

diopter represents the device dioptric power such as lens, and the unit is D, and in actual life, everybody is when detecting eyesight, adaptation glasses, and the dioptric power of lens is measured to the custom number of degrees, and conversion relation between them is: 1.00 d=100 degrees, the power being expressed in degrees below for convenience of description;

in the embodiment of the scheme, the first diopter adjusting module 2 can only adjust myopia, and the second diopter adjusting module 3 can adjust myopia, hyperopia, presbyopia, astigmatism and the like;

for diopter adaptation, a larger range can be achieved by combining the diopter adaptation and the diopter adaptation;

for users who have not only myopia accommodation requirements, other accommodation requirements such as hyperopia, presbyopia, astigmatism, etc. may be met by the second diopter adjustment module 3, as exemplified below:

the vision degree of the wearer is 350 degrees, the first diopter adjusting module 2 can be adjusted to 350 degrees or 50 degrees, if the first diopter adjusting module 2 is adjusted to 50 degrees, the second diopter adjusting module 3 with 300 degrees is added, the vision of the wearer can be compensated for by 350 degrees, and because the value of the vision degree adjusted by the first diopter adjusting module 2 is smaller, the picture distortion and the FOV reduction are smaller, and excellent watching effect is ensured;

if the vision degree of the other wearer is 380 degrees, the first diopter adjusting module 2 can be adjusted to 380 degrees or 80 degrees, if the vision degree is adjusted to 80 degrees, the vision of the wearer can be compensated by adding the second diopter adjusting module 3 with 300 degrees, and the required second diopter adjusting module 3 is 300 degrees as the last wearer, so that two people can use the same correcting lens, the use is more convenient, and the adaptability is better;

if the vision of the other wearer has the degree and astigmatism to be adjusted, the degree to be adjusted is 330 degrees, the first diopter adjusting module 2 can be adjusted to 30 degrees or 330 degrees, then the degree of the second diopter adjusting module 3 is set to 300 degrees or 0 degree, and the astigmatism of the wearer can be compensated; the wearing requirement of the wearer can be met, if the diopter value of the second diopter adjusting module 3 is 300 degrees, the first diopter adjusting module 2 only needs to be adjusted to 30 degrees, the image distortion and the FOV reduction are smaller, and the imaging quality is excellent.

In the Birdbath schemes in the VR glasses and the AR glasses at present, as shown in fig. 1, namely, the Birdbath scheme in the AR glasses, the first diopter adjusting module 2 can only perform refractive adjustment of myopic degree on the outgoing imaging light of the display unit 1, and can not perform refractive adjustment on the light entering the human eye from the outside, and the second diopter adjusting module 3 is arranged between the imaging unit and the human eye at this time, so that the imaging light and the external light outgoing from the display unit 1 are ensured to enter the human eye after passing through the second diopter adjusting module 3;

in the augmented reality AR glasses, if the second diopter adjustment module 3 is not provided, a wearer with vision defects can see the imaging picture clearly through the first diopter adjustment module 2, but cannot see the outside real scene clearly, and a split feeling of the virtual picture and the real scene picture can be caused; if the imaging picture and the external picture need to be clearly watched at the same time, the eyes are required to be frequently adapted to adjust two different diopters, and the lens is required to be frequently deformed, even if the vision defect of the eyes of a user is serious, the degree of the eyes is relatively high, and the lens can not meet the watching requirement even if the deformation of the lens is insufficient, the external picture is still invisible at the moment, the physiological discomfort and the eyestrain are increased, and the whole or part of the requirement for correcting the vision of a wearer can be solved through the second diopter adjusting module 3, and the first diopter adjusting module 2 is only required to be matched with the requirement for adjusting the degree of the vision of a small part, so that the use is more convenient, the application range is wider, and the use is more comfortable;

the following are illustrated: if the second diopter adjusting module 3 is not provided, even if the first diopter adjusting module 2 is adjusted to 350 degrees, the imaging picture seen by the wearer still needs astigmatism compensation, furthermore, the first diopter adjusting module 2 cannot adjust the diopter of the external light, so that the wearer still cannot see the external picture clearly, if the wearer needs to see the external matters while watching the imaging picture, the wearer is in a stretching and relaxing state when watching the imaging picture, and when needing to see the external matters, the lens needs to be deformed greatly to compensate diopter, if the first diopter adjusting module 2 is frequently switched to watch the first diopter adjusting module, the lens is frequently deformed, eye fatigue is caused, and wearing is uncomfortable.

In actual use, if the optical lens is used by a person or a crowd with small range and close vision, the second diopter adjusting module 3 only needs one optical lens group 4, the tiny difference between the optical lens group 4 and the actual diopter of eyes can be realized through the first diopter adjusting module 2, the required adjusting range of the first diopter adjusting module 2 is smaller, smaller picture distortion and reduced FOV can be ensured, and the wearing imaging effect is ensured;

for example, three wearers need to use the glasses together, the vision degree of the wearers is 330 degrees, 350 degrees and 380 degrees respectively, the three can share one optical lens group 4 with the degree of 300 degrees, the first diopter adjusting module 2 is additionally adjusted to 30 degrees, 50 degrees and 80 degrees respectively, the three wearers share the same optical lens group 4, the use is more convenient, the adaptability is better, and the definition of an imaging picture watched by the user is close to that of an external picture due to the smaller value of the first diopter adjusting module 2, the imaging picture and the external picture can be watched simultaneously better, the wearing comfort degree is improved, the picture distortion and the FOV reduction caused by the first diopter adjusting module 2 are smaller, and the watching experience of the three is more consistent.

An embodiment is suitable for the public field that multiple persons use the same equipment, or the vision parameters of multiple persons are greatly different; at this time, the vision second diopter adjusting module 3 includes a plurality of optical lens groups 4, the diopter values of the plurality of optical lens groups 4 are in an arithmetic progression, the maximum diopter value adjustable by the first diopter adjusting module 2 is b, the minimum diopter value adjustable by the first diopter adjusting module 2 is a, the absolute value of the diopter value difference value of two adjacent optical lens groups 4 is c, and in the second diopter adjusting module 3, the diopter absolute value of the optical lens group 4 with the minimum diopter absolute value is d, b-a is greater than or equal to c and b is greater than or equal to d;

specifically, the difference value of the diopter values of the optical lens group 4 may be 50 degrees, 100 degrees, 150 degrees, 200 degrees, etc., and the diopter adjustment range of the first diopter adjustment module 2 may be 0-500/600 degrees, etc.;

the following describes three optical lens groups with diopter values of 100 degrees, 200 degrees and 300 degrees as the second diopter adjustment module 3, and the diopter adjustment range of the first diopter adjustment module 2 is exemplified by 0-600 degrees:

if the eye degree of the wearer is 750 degrees and exceeds 600 degrees, the second diopter adjusting module 3 with 200 or 300 degrees can be arranged, and then the first diopter adjusting module 2 is adjusted to 450 degrees or 550 degrees, so that the wearing requirement of the wearer can be met, and the fit range of diopter is enlarged through the combination mode of the first diopter adjusting module 2 and the second diopter adjusting module 3; if the eye degrees of a plurality of wearers are all 300-400, the wearers can uniformly use the optical lens group 4 with 100 degrees, 200 degrees or 300 degrees, and each wearer with the rest degrees can adjust the optical lens group by self through the first diopter adjusting module 2, so that one lens can be suitable for a plurality of people, the use is more convenient, the special preparation of the optical lens 6 matched with the eyesight of each person is not needed, and the use is more convenient;

in this case, it is more preferable that the wearer selects one optical lens group 4 closest to the diopter of his eye from the optical lens groups 4 with diopter value smaller than that of his eye in the existing second diopter adjustment module 3, so that the diopter adjustment of the first diopter adjustment module 2 on the imaging picture is minimum, the difference between the outside reality seen by the wearer and the definition of the imaging picture is minimum, and the picture distortion and fov reduction caused by the diopter adjustment of the first diopter adjustment module 2 are minimum, so that the wearing experience is better.

For example, the eye power of the wearer is 350 degrees, the diopter adjustment range of the first diopter adjustment module 2 is 0-500 degrees, the second diopter adjustment module 3 comprises three optical lens groups 4, diopter values are 100 degrees, 200 degrees and 300 degrees respectively, the optimal choice of the wearer is to select the optical lens group 4 with 300 degrees for wearing, at the moment, the outside reality can also be corrected through the optical lens group 4, the difference value between the outside reality and the actual eye power of the wearer is the minimum, the visible outside reality is clear, at the moment, the first diopter adjustment module 2 only needs to adjust the diopter value to 50 degrees, the reduction of picture distortion and FOV is ensured to be the minimum, and the wearing experience of the user is better;

if the vision range of three groups of wearers is respectively between 100-200 degrees, 200-300 degrees and 300-400 degrees, the three groups of wearers can respectively select the second diopter adjusting module 3 with the diopter of 100 degrees, 200 degrees and 300 degrees and then automatically adjust the diopter adjusting module to be suitable for the eyes of the wearer, so that when the vision range of all the wearers is ensured to be used, the diopter adjusting module is adjusted within 0-100 degrees, the vision range of the wearer can be ensured to be clearly seen when the imaging display content is seen, and the image distortion and the FOV reduction caused by the first diopter adjusting module 2 are smaller, the imaging experience is better and more consistent;

taking the second diopter adjustment module 3 as an example, the diopter values of the three optical lens groups 4 are respectively 100 degrees, 200 degrees and 300 degrees, if the maximum diopter value which can be adjusted by the first diopter adjustment module 2 is 80 degrees, the minimum diopter value is 0 degree, the difference value of the two diopter values is 80 degrees, and the diopter values are smaller than the diopter difference value of the two adjacent optical lens groups 4, namely b=80, a=0, c=100, d=100, namely b-a < c, b < d, and the diopter ranges between 80-100 degrees, 180-200 degrees and 280-300 degrees cannot meet the adjustment requirement;

taking the second diopter adjustment module 3 including three optical lens groups 4 with diopter values of 200 degrees, 300 degrees and 400 degrees as an example, if the maximum diopter value that can be adjusted by the first diopter adjustment module 2 is 180 degrees and the minimum diopter value is 0 degrees, namely b=180, a=0, c=100, d=200, namely b-a > c, and b < d, the diopter between b and d, namely 180-200 degrees cannot meet the adjustment requirement;

taking the second diopter adjustment module 3 including three optical lens groups 4 with diopter values of 100 degrees, 300 degrees and 500 degrees as examples, if the maximum diopter value that can be adjusted by the first diopter adjustment module 2 is 180 degrees and the minimum diopter value is 0 degrees, namely b=180, a=0, c=200, d=200, namely b-a < c, b > d, the diopter between b and d, namely 280-300 degrees cannot meet the adjustment requirement;

setting the maximum diopter value of the optical lens group 4 in the second diopter adjusting module 3 as e, wherein the adjusting range of the combination scheme can only comprise any value from a to e+b when b-a is more than or equal to c and b is more than or equal to d;

in public demands of multiple people, the optical parameters of the multiple optical lens groups can only comprise myopia and hyperopia parameters, because people suffering from the vision defects occupy a larger area, compared with myopia and hyperopia, astigmatism has smaller influence on the definition of a watched picture, so that the public demands can be quickly covered and adapted to more people, the use is more convenient, and the use effect is ensured; if the optical lens group is used by a person, the optical lens group can be only one, the parameters are completely matched with the vision correction requirements of the wearer, the various correction requirements of the wearer on myopia, hyperopia, presbyopia, astigmatism and the like can be met, and the first diopter adjusting module is adjusted to 0 degree when the optical lens group is worn, so that the watching effect of the wearer is best.

More preferably, for convenience of design, testing, etc., a diopter value of the most suitable crowd with the highest imaging quality, the least distortion of the picture is required as the boundary of the diopter adjustment range of the first diopter adjustment module 2, preferably a is 0, at this time, the stability of the mechanical structure is also the best, and generally, the moving member moves to the boundary of the distance range at this time.

In order to facilitate the connection between the second diopter adjusting module 3 and the display unit 1 and enhance the stability during wearing, as shown in fig. 2-8, the vision correction structure further comprises a nose pad 5, the second diopter adjusting module 3 is detachably connected with the display unit 1 through the nose pad 5, the optical lens group 4 comprises an optical lens 6 and an optical lens frame 7, the optical lens 6 is arranged on the optical lens frame 7, a nose pad buckle 8 is further arranged on the lens frame, a nose pad jack 9 is arranged on the display unit 1, and the nose pad 5 can be clamped in the nose pad jack 9 after passing through the nose pad buckle 8;

the optical lens 6 can be made of high light transmittance materials such as resin, glass and the like, and the appearance can be coated with a required functional film layer such as scratch resistance, blue light resistance, fog resistance and the like, which can correct myopia of a wearer, and can also correct hyperopia, presbyopia and astigmatism according to other vision defects of the wearer; the display unit 1 is a main body structure of the head-mounted display device, and if the head-mounted display device is AR glasses, the nose pad 5 is still required to be used as a part of a support when the plurality of types of AR glasses are worn at present; the nose holds in the palm 5 when supporting the whole weight of glasses, still is responsible for installing second diopter adjustment module 3 to the glasses, and it is more convenient to use, and the nose holds in the palm 5 itself and participates in the supporting work of glasses, holds in the palm 5 with second diopter adjustment module 3 direct mount on the nose, can reduce rocking, and the installation is more stable, wears the comfort level higher.

Preferably, as shown in fig. 2-5, most of the head-mounted display devices are binocular devices, corresponding display contents are arranged for each eye, and two first diopter adjusting modules 2 are respectively arranged for the eyes; two second diopter adjusting modules 3 are respectively arranged for the two first diopter adjusting modules 2, and one optical lens frame 7 is shared for the two optical lens groups 4 of two eyes;

the diopter parameters of the optical lenses of the two optical lens groups can be set according to the vision correction requirements of the wearer, and if used by an individual, are preferably perfectly matched with the vision correction requirements of the wearer.

More preferably, the diopter values of the optical lenses 6 in the two optical lens groups 4 are the same;

in actual life, the degrees of the eyes of a person with vision defects are relatively close, so that the diopter values of the optical lenses 6 in the two optical lens groups 4 are the same, and the diopter of the corresponding first diopter adjusting module 2 is specifically adjusted according to the diopter difference of each eye;

if the difference of the powers of the two eyes is large, the value of the power of the eyes with the lower power can be used as a reference, and the required diopter value of the optical lens 6 can be selected according to the lens power selection logic;

when the optical glasses are applied to the public field, more wearers are in cost consideration, and two optical lenses with consistent diopters are arranged on the same optical glasses frame, so that the optical glasses are more convenient to produce, combine and manage, and are more convenient to identify and select when worn by users.

More preferably, as shown in fig. 4, 6 and 7, in order to facilitate the installation and the disassembly of the nose pad 5, an elastic claw 10 is arranged on the nose pad 5, a nose pad clamping groove 11 is arranged on the inner wall of the nose pad insertion hole 9, and after the nose pad 5 is inserted into the nose pad insertion hole 9, the elastic claw 10 can extend into the nose pad clamping groove 11;

in practical use, the elastic claw 10 and the nose pad clamping groove 11 should be designed to facilitate the insertion and extraction of the nose pad 5 at the same time.

6-8, on the basis of the above embodiment, a first positioning surface 12 is arranged at the bottom of a nose pad insertion hole 9, a second positioning surface 13 is arranged on a nose pad 5 corresponding to the first positioning surface 12, after the nose pad 5 is inserted into the nose pad insertion hole 9, when the first positioning surface 12 can be attached to the second positioning surface 13 and the first positioning surface and the second positioning surface are attached to the first positioning surface, an elastic claw 10 is arranged in a nose pad clamping groove 11, a protruding part 14 is arranged on the nose pad 5, and a glasses frame can be clamped above the protruding part 14;

the protrusion 14 can be used for conveniently clamping the nose pad 5, so that force can be conveniently applied when the nose pad 5 is inserted or pulled out, and the optical lens frame 7 can be prevented from falling off from the nose pad 5 by the protrusion below;

the setting of first locating surface 12 and second locating surface 13 can make nose pad 5 insert the back in place, and the position is more stable, and nose pad 5 sets up to insert display element 1 from the below generally, and when wearing, display element 1 originally can press to establish on nose pad 5, can further ensure the cooperation effect of first locating surface 12 and second locating surface 13, ensures the stability of nose pad 5, reduces the rocking etc. when wearing.

More preferably, as shown in fig. 4-5, in order to facilitate processing and forming during manufacturing, the nose pad buckle 8 is shaped like a C, an opening 15 is provided, in order to ensure the accuracy and stability of assembling the nose pad 5 and the optical lens frame 7, positioning notches 16 are respectively provided at two sides of the opening 15, the positioning notches 16 can be clamped on the protruding portions 14 to contact with the protruding portions 14, the nose pad buckle 8 is generally sleeved on the nose pad 5 and above the protruding portions 14, the positioning notches 16 are generally opened below and clamped on the protruding portions 14, and in order to ensure that the optical lens frame 7 does not fall from the bottom of the nose pad 5, the opening 15 should be ensured to be smaller than the protruding portions 14.

1-3, a head-mounted display device is provided, wherein any one of the vision correction structures is used, and the vision correction structure is combined by adopting an optical lens 6 and a first diopter adjusting module 2, so that the head-mounted display device can be adapted to wearers with different vision defects to the greatest extent, is more convenient to use, has better virtual-real combination effect, has smaller imaging picture distortion and FOV reduction, and is more comfortable to wear;

this scheme is more suitable for being applied to in the augmented reality AR glasses, and AR glasses is higher to the demand that virtual reality combines, and the whole glasses weight of support is held in the palm with nose to glasses leg and nose in addition when wearing.

The utility model aims to provide a vision correction structure and a head-wearing display device, which adopt a mode of combining an optical correction lens and a diopter adjusting module, not only increase the adaptive range of diopter, but also correct vision defects such as astigmatism which can not be compensated by the diopter adjusting module, and the like, and the optical correction lens and a glasses main body are connected together through a nose pad 5, so that the use is more convenient and quick, the picture viewing is better, and the wearing is more comfortable.

While the foregoing is directed to the preferred embodiment, other and further embodiments of the utility model will be apparent to those skilled in the art from the following description, wherein the utility model is described in detail, such that it is illustrative of the principles and aspects of the utility model.

Claims (12)

1. A vision correction structure, applied in a head-mounted display device, characterized in that: including display element (1), first diopter adjustment module (2) and second diopter adjustment module (3), first diopter adjustment module (2) set up in wear display device can carry out diopter adjustment to the imaging light of display element (1), second diopter adjustment module (3) can be connected with display element (1) is detachable, along the direction of display element (1) imaging light, the projection area of second diopter adjustment module (3) can cover the exit pupil area of display element (1).

2. A vision correcting structure as claimed in claim 1, wherein: the first diopter adjusting module (2) only adjusts the display imaging light path, and the second diopter adjusting module can adjust the display imaging light path and the external real light path.

3. A vision correcting structure as claimed in claim 2, wherein: the second diopter adjustment module (3) comprises at least one optical lens group (4).

4. A vision correcting structure as claimed in claim 3, wherein: the vision second diopter adjusting module (3) comprises a plurality of optical lens groups (4), diopter values of the plurality of optical lens groups (4) are in an arithmetic progression, a maximum diopter value which can be adjusted by the first diopter adjusting module is b, a minimum diopter value which can be adjusted by the first diopter adjusting module is a, an absolute value of diopter value difference values of two adjacent optical lens groups (4) is c, and in the vision second diopter adjusting module, diopter absolute values of the optical lens groups with the minimum diopter absolute values are d, and b-a is larger than or equal to c and b is larger than or equal to d.

5. A vision correcting structure as defined in claim 4, wherein: and a is 0.

6. A vision correcting structure as claimed in claim 3, wherein: still include nose pad (5), second diopter adjustment module (3) are through nose pad (5) and display element (1) detachable connection, optical lens group (4) are including optical lens (6) and optical mirror frame (7), optical lens (6) set up on optical mirror frame (7), be provided with nose pad on the mirror frame still and detain (8), be provided with nose pad jack (9) on display element (1), nose pad (5) can pass behind nose pad knot (8) the card and establish in nose pad jack (9).

7. A vision correcting structure as defined in claim 6, wherein: the two first diopter adjusting modules (2) are respectively arranged for two eyes; the two second diopter adjusting modules (3) are respectively arranged for the two first diopter adjusting modules (2); for two optical lens groups (4) for both eyes, one optical lens frame (7) is shared.

8. A vision correcting structure as defined in claim 7, wherein: the diopter values of the optical lenses (6) in the two optical lens groups (4) are the same.

9. A vision correcting structure as defined in claim 8, wherein: an elastic claw (10) is arranged on the nose pad (5), a nose pad clamping groove (11) is formed in the inner wall of the nose pad insertion hole (9), and after the nose pad (5) is inserted into the nose pad insertion hole (9), the elastic claw (10) can extend into the nose pad clamping groove (11).

10. A vision correcting structure as claimed in claim 9, wherein: the nose holds in palm jack (9) bottom and is provided with first locating surface (12), it is provided with second locating surface (13) to correspond first locating surface (12) on nose holds in the palm (5), nose holds in the palm after jack (9) are held in the palm in the nose to insert, first locating surface (12) can laminate with second locating surface (13) and both laminating time, and in nose holds in the palm draw-in groove (11) were arranged in to elasticity jack catch (10), be provided with bellying (14) on nose held in the palm (5), the mirror holder can be blocked and establish in bellying (14) top.

11. A vision correcting structure as defined in claim 6, wherein: the nose pad buckle (8) is similar to a C, an opening (15) is formed, positioning openings (16) are formed in two sides of the opening (15) respectively, and the positioning openings (16) can be clamped on the protruding portion (14) to be in contact with the protruding portion (14).

12. A head mounted display device, characterized by: a vision correcting structure comprising any one of claims 1-11.