CN106526857B - Focus adjustment method and device - Google Patents
Focus adjustment method and device Download PDFInfo
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- CN106526857B CN106526857B CN201611131982.3A CN201611131982A CN106526857B CN 106526857 B CN106526857 B CN 106526857B CN 201611131982 A CN201611131982 A CN 201611131982A CN 106526857 B CN106526857 B CN 106526857B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0172—Head mounted characterised by optical features
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Abstract
A kind of focus adjustment method and device, the focus adjustment method include: the pupil area for obtaining the wearer's eyes for wearing virtual reality device；The first adjustable range corresponding with the pupil area is determined whether according to the corresponding relationship between preset pupil area and the first adjustable range；If there is the first adjustable range, then the distance between eyeglass of the virtual reality device to screen is adjusted to first adjustable range, so that the wearer's eyes are in focusing state.Focus adjustment method and device provided by the invention according to the pupil area of wearer's eyes adjust virtual reality device eyeglass to distance between screen be the first adjustable range, so that wearer's eyes are in focusing state, to be adapted to the wearer of different eyesights, wearer is no longer needed to replace eyeglass or manually adjust focal length, use is more convenient.
Description
Technical field
The present invention relates to technical field of virtual reality more particularly to a kind of focus adjustment methods applied in virtual reality device
And device.
Background technique
Virtual reality device is one of modern display technology brand new technical, in enhancing display, virtual reality and is stood
Body shows etc. to there is important application.The virtual screen that the wearer of virtual reality device is seen by virtual reality device,
With very strong three-dimensional sense.
For the crowd of different eyesights, existing virtual reality device can install the eyeglass of plurality of specifications additional, to allow difference
Can the wearer of eyesight see virtual screen.But for the wearer of different eyesights, wearer is needed to use preceding tune
Eyeglass is saved, is used particularly troublesome.
Summary of the invention
The purpose of the present invention is to provide a kind of focus adjustment method and devices, facilitate the wearer of different eyesights to use virtual existing
Real equipment.
To achieve the above object, the present invention provides a kind of focus adjustment methods based on human eyesight, comprising:
Obtain pupil plane of the wearer's eyes for wearing virtual reality device when the illuminance of bias light is lower than 0.02Lux
Product；
It is determined whether and the pupil plane according to the corresponding relationship between preset pupil area and the first adjustable range
Corresponding first adjustable range of product；
If there is the first adjustable range, then the distance between eyeglass of the virtual reality device to screen is adjusted to institute
The first adjustable range is stated, so that the wearer's eyes are in focusing state.
Further, if the first adjustable range not corresponding with the pupil area:
The myopia degree of the wearer is calculated according to the pupil area；
Obtain the first parameter and the second parameter, wherein first parameter is that wearer's eyes arrive virtual reality device
The distance between eyeglass, second parameter are the eyeglass of the virtual reality device the distance between to screen；
The second adjustable range is calculated according to first parameter, the second parameter and the myopia degree of the wearer；
The eyeglass for adjusting the virtual reality device makes the pendant to the distance between screen extremely second adjustable range
Wearer's eyes are in focusing state.
Further, include: according to the myopia degree that the pupil area calculates the wearer
If the pupil area S is 30.74~36.36mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.68；
If the pupil area S is 36.37~41.41mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.25；
If the pupil area S is 42.61~48.57mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.08.
Further, described second is calculated according to first parameter, the second parameter and the myopia degree of the wearer to adjust
Pitch is from including:
The second adjustable range Y is calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100, H
For the myopia degree of the wearer.
Further, further includes:
Obtain the interpupillary distance of the wearer, wherein the interpupillary distance is the distance between the pupil of the wearer's eyes；
The interpupillary distance of the virtual reality device is adjusted according to the interpupillary distance of the wearer.
The present invention also provides a kind of focus controls based on human eyesight, comprising:
Pupil area obtains module, for obtaining illuminance of the wearer's eyes for wearing virtual reality device in bias light
Pupil area when lower than 0.02Lux；
First adjustable range determining module, for according to the corresponding pass between preset pupil area and the first adjustable range
System determines whether the first adjustable range corresponding with the pupil area；
First Focusing module is used for if there is the first adjustable range, then by the eyeglass of the virtual reality device to screen
The distance between be adjusted to first adjustable range so that the wearer's eyes are in focusing state.
It further, further include the second adjustable range determining module, the second adjustable range determining module includes:
Myopia degree computing module, for calculating the myopia degree of the wearer according to the pupil area；
Parameter acquisition module, for obtaining the first parameter and the second parameter, wherein first parameter is wearer's eyes
To the distance between the eyeglass of virtual reality device, second parameter is the eyeglass of the virtual reality device between screen
Distance；
Second adjustable range computing module, for according to first parameter, the second parameter and the near-sighted degree of the wearer
The second adjustable range is calculated in number；
Second Focusing module is adjusted for adjusting the eyeglass of the virtual reality device to the distance between screen to described second
Pitch is in focusing state from making the wearer's eyes.
Further, the myopia degree computing module includes:
First myopia degree computational submodule, if being 30.74~36.36mm for the pupil area S2, it is determined that
The myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.68；
Second myopia degree computational submodule, if being 36.37~41.41mm for the pupil area S2, it is determined that
The myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.25；
Third myopia degree computational submodule, if being 42.61~48.57mm for the pupil area S2, it is determined that
The myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.08.
Further, the second adjustable range computing module includes:
The second adjustable range Y is calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100, H
For the myopia degree of the wearer.
Further, further includes:
Interpupillary distance obtains module, for obtaining the interpupillary distance of the wearer, wherein the interpupillary distance is the wearer's eyes
The distance between pupil；
Interpupillary distance adjusts module, and the interpupillary distance of the virtual reality device is adjusted for the interpupillary distance according to the wearer.
Focus adjustment method and device provided by the invention adjust virtual reality device according to the pupil area of wearer's eyes
Eyeglass to distance between screen be the first adjustable range so that wearer's eyes are in focusing state, to be adapted to different eyesights
Wearer, it is no longer necessary to wearer replaces and eyeglass or manually adjusts focal length, and use is more convenient.
Further, focus adjustment method and device provided by the invention calculate myopia degree according to the pupil area of wearer,
Second distance of the wearer under focusing state between eyeglass and screen is calculated in conjunction with the first parameter and the second parameter, it will be to pendant
The adjusting of the myopia degree of wearer is converted to the adjusting to eyeglass to the distance between screen, to meet different vision users
Use demand.And focus adjustment method provided by the invention and device can be real by the way that existing virtual reality device is slightly transformed
It is existing, it is also smaller to the improvement cost of the hardware configuration of virtual reality device.
Detailed description of the invention
Fig. 1 is the flow chart of the focus adjustment method of first embodiment of the invention；
Fig. 2 is the flow chart of the focus adjustment method of second embodiment of the invention；
Fig. 3 is the flow chart of the adjustment interpupillary distance in embodiment of the present invention；
Fig. 4 is the structural schematic diagram of virtual reality device of the invention；
Fig. 5 is the illustrative functional block diagram of one embodiment of focus control of the present invention；
Fig. 6 is the functional block diagram of myopia degree computing module in focus control shown in Fig. 5.
Main element symbol description
| Virtual reality device | 100 |
| Processor | 110 |
| Memory | 120 |
| Distance measuring sensor | 130 |
| Infrared camera | 140 |
| Eyeglass focal length regulating system | 150 |
| Focus control | 200 |
| Pupil area obtains module | 210 |
| First adjustable range determining module | 220 |
| First Focusing module | 230 |
| Interpupillary distance adjusts module | 240 |
| Interpupillary distance acquisition submodule | 241 |
| Interpupillary distance adjusting submodule | 242 |
| Myopia degree computing module | 250 |
| First myopia degree computational submodule | 251 |
| Second myopia degree computational submodule | 252 |
| Third myopia degree computational submodule | 253 |
| Parameter acquisition module | 260 |
| Second adjustable range computing module | 270 |
| Second Focusing module | 280 |
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention will be described in detail.It should be noted that in the absence of conflict, presently filed embodiment and reality
The feature applied in mode can be combined with each other.Many details are explained in the following description in order to fully understand this hair
Bright, described embodiment is only some embodiments of the invention, rather than whole embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Mode shall fall within the protection scope of the present invention.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
In the various embodiments of the invention, myopia refers to distant objects reflection or the light issued through eyeball refractive power
Afterwards, it focuses on before retina and clearly image cannot be formed on the retina.The pupil area refers to wearer's eyes
The pupil area that test obtains in dark surrounds (illuminance of bias light is lower than 0.02Lux).To human pupil area
Found in research with near-sighted relationship, pupil area of the normal person's eyes (i.e. emmetropia) under dark surrounds be (30.21 ±
6.29)mm2, the pupil area of the eyes of myopia population is (39.30 ± 9.24) mm2, the pupil area of emmetropia and myopia
Difference has significant statistical difference (P < 0.01), and the pupil area of myopia is big compared with the pupil area of emmetropia, and pupil
Hole area increases with the intensification of myopia degree.
Fig. 1 is the flow chart of the focus adjustment method of first embodiment of the invention, as shown in Figure 1, the focus adjustment method includes such as
Lower step:
Step S110: the pupil area for wearing the wearer's eyes of virtual reality device is obtained.
It in a specific embodiment, can be using the infrared camera being arranged in virtual reality device in a dark environment
The dynamic change image of the pupil of captured in real-time wearer's eyes obtains wearer's eyes to dynamic change image processing and analyzing
Pupil area.In the present embodiment, individually the left eye of wearer or right eye can be surveyed according to the setting of wearer
Examination, can also test wearer two pupil areas simultaneously.
Step S120: determining whether according to the corresponding relationship between preset pupil area and the first adjustable range and institute
State corresponding first adjustable range of pupil area.
In the present embodiment, the pupil area is corresponding with the first adjustable range may is that
1, pupil area and the first adjustable range correspond, and the pupil area of different area corresponds to the of different distance
One adjustable range.For example, area is 31.45mm2Corresponding first adjustable range of pupil area be 36mm, area is
35.43mm2Corresponding first adjustable range of pupil area be 37.5mm.
2, multiple pupil areas are corresponding with one first adjustable range, for example, pupil area is 31.45mm2And 32.45mm2?
Corresponding to the first adjustable range.
3, the pupil area in a section is corresponding with one first adjustable range, for example, can be numerical value 30.74~
31.22mm2Section pupil area correspond to one first adjustable range.
First adjustable range and its corresponding pupil area can store in the memory of virtual reality device, such as
Pupil area and the first adjustable range correspondence can be stored in a document data base, be retrieved according to the pupil area of acquisition
The first adjustable range corresponding with the pupil area, if it is possible to be retrieved from the document data base corresponding with the pupil area
The first adjustable range, then can determine the first adjustable range corresponding with the pupil area；Otherwise, it determines not with this
Corresponding first adjustable range of pupil area.
Step S130: if there is the first adjustable range, then by the eyeglass of the virtual reality device between screen away from
From first adjustable range is adjusted to, so that the wearer's eyes are in focusing state.
The light that above-mentioned focusing state refers to that the screen display image of virtual reality device issues is focused on through eyeglass
On the retina of wearer's eyes, so that wearer is apparent that the image shown on the screen of virtual reality device.?
In this step, the distance between adjustment eyeglass to screen to the first adjustable range, so that the light of screen image is poly- by eyeglass
On the retina of eyes, wearer is able to be clearly seen the image shown on the screen of virtual reality device coke.
The focus adjustment method that present embodiment provides adjusts virtual reality device according to the pupil area of wearer's eyes
Eyeglass to distance between screen be the first adjustable range so that wearer's eyes are in focusing state, so that fast adaptation is not
With the wearer of eyesight, it is no longer necessary to which wearer replaces eyeglass or manually adjusts focal length, and use is more convenient.
Fig. 2 is the flow chart of the focus adjustment method of second embodiment of the invention.The second embodiment is real with first
The main distinction for applying mode is that second embodiment is preferred embodiment.It should be noted that in essence of the invention
In the range of mind or essential characteristic, it is real that each concrete scheme suitable for first embodiment can also be suitable for second accordingly
It applies in mode, for the sake of saving space and avoiding repetition, details are not described herein again.
As shown in Fig. 2, the focus adjustment method includes the following steps:
Step S210: the pupil area for wearing the wearer's eyes of virtual reality device is obtained.
Step S220: judging whether there is the first adjustable range corresponding with the pupil area of the wearer, if so, then into
Enter step S230, otherwise, enters step S240.
Step S230: by the distance between eyeglass of the virtual reality device to screen be adjusted to it is described first adjust away from
From so that the wearer's eyes are in focusing state.
Step S240: the myopia degree of the wearer is calculated according to the pupil area.
Myopia degree is used to measure the not positive degree of eye refraction.It, can be by myopic degree according to the height of myopia degree
It is divided into basic, normal, high degree myopia.It is found according in the research to pupil area and myopia degree, the pupil plane of low degree short sightedness patient
Product is 30.74~36.36mm2；The pupil area of medium myopia patient is 36.37~41.41mm2, the pupil of high myopia
Area is 42.61~48.57mm2, and the pupil area of above-mentioned basic, normal, high degree myopia has significant statistics
It learns difference (P < 0.01), therefore, between the pupil area and myopia degree of human eye there is rule variation.
It is analyzed by many experiments and data, it in the present embodiment, can be using following formula according to the pupil area
Calculate the myopia degree of the wearer:
If the pupil area S is 30.74~36.36mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.68；
If the pupil area S is 36.37~41.41mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.25；
If the pupil area S is 42.61~48.57mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.08.
Step S250: the first parameter and the second parameter are obtained, wherein first parameter is that wearer's eyes show to virtual
The distance between the eyeglass of real equipment, second parameter are the eyeglass of the virtual reality device the distance between to screen.
It in the present embodiment, can be by being mounted in virtual reality device after wearer wears virtual reality device
Ultrasonic wave or infrared distance sensor measure eyes and be used as the first parameter to the distance between eyeglass.In addition, the second parameter
Wearer can be detected in focusing front lens to screen by ultrasonic wave in virtual reality device or infrared distance sensor
The distance between be used as the second parameter.
Step S260: the second tune is calculated according to first parameter, the second parameter and the myopia degree of the wearer
Pitch from.
In the present embodiment, the second adjustable range Y can be calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100,
In, H is the myopia degree that step 240 obtains.
Step S270: the eyeglass for adjusting the virtual reality device makes to the distance between screen extremely second adjustable range
It obtains the wearer's eyes and is in focusing state.
In some embodiments, above-mentioned pupil area and corresponding with the pupil area second can also be adjusted away from
From being stored in virtual reality device, after wearing the virtual reality device to the user with the pupil area in subsequent detection,
Second adjustable range can be searched according to pupil area, and the distance between eyeglass and screen are quickly adjusted to second adjusting
Distance meets the use demand of different eyesight crowds.
The focus adjustment method that this second embodiment provides is in addition to having the technology being previously mentioned in the first embodiment
It, can also be according to the first ginseng in the case where at a distance from it can not determine eyeglass between screen according to pupil area except effect
Several and the second parameter calculates second distance of the wearer under focusing state between eyeglass and screen, by the myopia to wearer
The adjusting of degree is converted to the adjusting to eyeglass to the distance between screen, meets the use demand of different vision users, and
Focus adjustment method provided in this embodiment can slightly be transformed existing virtual reality device and can be realized, to virtual reality device
Hardware configuration improvement cost it is also smaller.
Fig. 3 is the flow chart of the focus adjustment method of third embodiment of the invention.
The third embodiment is the scheme based on first embodiment and second embodiment, further for reaching
To the purpose for adapting to wearer's eyes interpupillary distance, the third embodiment can also include the steps that following adjustment interpupillary distance.
Step S310: obtain the interpupillary distance of the wearer, wherein the interpupillary distance be the wearer's eyes pupil between away from
From.In this step, the distance between the pupil of two eyes of wearer can be obtained by the camera of virtual reality device.
Step S320: the interpupillary distance of the virtual reality device is adjusted according to the interpupillary distance of the wearer.
In general, the interpupillary distance between two pupils of each wearer is different, adjusted according to the interpupillary distance of wearer's eyes
The interpupillary distance of virtual reality device is convenient for wearer so that the position of the eyeglass of virtual reality device is adapted to the eyes of wearer
Use the virtual reality device.
It is the detailed description carried out to method provided by the present invention above.According to different requirements, in shown flow chart
The execution sequence of square can change, and certain squares can be omitted.Device provided by the present invention is described below.
Fig. 4 is the structural schematic diagram of the electronic equipment provided by the invention using the respective embodiments described above.Such as Fig. 4 institute
Show, virtual reality device 100 includes memory 120.Memory 120 is stored with the focusing dress applied to virtual reality device 100
Set 200.The focus control 200 can adjust the eyeglass of virtual reality device to screen according to the pupil area of wearer's eyes
Between distance be that the first adjustable range so that wearer's eyes are in focusing state meets the use demand of different vision users.
In present embodiment, virtual reality device 100 can also include screen 160 and processor 110.Memory 120, screen
Curtain 160 can be electrically connected with processor 110 respectively.The memory 110 can be different type storage equipment, for storing
Various types of data.For example, it may be the memory of virtual reality device 100, can also be can be external in the virtual reality device 100
Storage card, such as flash memory, SM card (Smart Media Card, smart media card), SD card (Secure Digital Card, safety
Digital card) etc..Memory 120 is for storing Various types of data, for example, the types of applications installed in the virtual reality device 100
The information such as program (Applications), picture or video.
Screen 160 is installed in virtual reality device 100, for showing all kinds of images, including picture, video, webpage page
Face, each class method or interactive interface of game etc..Processor 110 is for executing the regulating device 200 and described virtual existing
All kinds of softwares installed in real equipment 100, such as operating system and games etc..Processor 110 is including but not limited to processing
Device (Central Processing Unit, CPU), micro-control unit (Micro Controller Unit, MCU) etc. are for solving
It releases computer instruction and handles the device of the data in computer software.Infrared camera 140 is electrically connected with processor 110,
It is preferred that the left eyeglass lens and right eyeglass lens on piece in virtual reality device respectively install one, for measuring wearer's left eye or right eye
Pupil area.Distance measuring sensor 130 can be infrared distance sensor or ultrasonic distance-measuring sensor, wear for detecting
Person's eyes are the distance between to the eyeglass of the distance between eyeglass and virtual reality device 100 to screen 160.Eyeglass focal length
Regulating system 150 is used for the position of the mobile eyeglass of instruction according to processor 110, the distance between adjustment eyeglass to screen 160.
The focus control 200 can be divided into one or more modules, and one or more of modules are stored
In the memory 120 of virtual reality device 100 and be configured to by one or more processors (present embodiment be one
Manage device 110) it executes, to complete the present invention.For example, as shown in fig.5, the focus control 200 can be divided into pupil plane
Product obtains module 210, the first adjustable range determining module 220, the first Focusing module 230, myopia degree computing module 250, ginseng
Number obtains module 260, the second adjustable range computing module 270, the second Focusing module 280 and interpupillary distance and adjusts module 240.The present invention
So-called module is to complete the program segment of a specific function, the execution than program more suitable for description software in the processor
Journey.
It is understood that each embodiment in corresponding above-mentioned message prompt method, focus control 200 can be divided
At part or all in each functional module shown in Fig. 5, the function of each module will introduced in detail below.It needs to illustrate
, identical noun related terms and its specific illustrate can also be applied in each embodiment of the above focus adjustment method
In the function introduction below to each module.For the sake of saving space and avoiding repetition, details are not described herein again.
Pupil area obtains module 210, for obtaining the pupil area for wearing the wearer's eyes of virtual reality device.
First adjustable range determining module 220, for according to the corresponding pass between preset pupil area and adjustable range
System determines whether the first adjustable range corresponding with the pupil area.
First Focusing module 230 is used for if there is the first adjustable range, then by the eyeglass of the virtual reality device to screen
The distance between curtain is adjusted to first adjustable range, so that the wearer's eyes are in focusing state.
Myopia degree computing module 250, for calculating the myopia degree of the wearer according to the pupil area.
As shown in fig.6, the myopia degree computing module 250 includes:
First myopia degree computational submodule 251, if being 30.74~36.36mm for the pupil area S2, then really
The myopia degree H of the fixed wearer are as follows:
H=| S-30 | * S*1.68；
Second myopia degree computational submodule 252, if being 36.37~41.41mm for the pupil area S2, then really
The myopia degree H of the fixed wearer are as follows:
H=| S-30 | * S*1.25；
Third myopia degree computational submodule 253, if being 42.61~48.57mm for the pupil area S2, then really
The myopia degree H of the fixed wearer are as follows:
H=| S-30 | * S*1.08.
Parameter acquisition module 260, for obtaining the first parameter and the second parameter, wherein first parameter is wearer
Eyes to virtual reality device the distance between eyeglass, second parameter be the virtual reality device eyeglass to screen it
Between distance.
Second adjustable range computing module 270, for the myopia according to first parameter, the second parameter and the wearer
The second adjustable range is calculated in degree.
The second adjustable range computing module 270 includes:
The adjustable range Y is calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100.
Second Focusing module 280, for adjusting the eyeglass of the virtual reality device to the distance between screen to described the
Two adjustable ranges make the wearer's eyes be in focusing state.
In addition, the focus control further includes interpupillary distance adjustment module 240, the interpupillary distance adjustment module 240 includes:
Interpupillary distance acquisition submodule 241, for obtaining the interpupillary distance of the wearer, wherein the interpupillary distance is the wearer
The distance between pupil of eyes；
Interpupillary distance adjusting submodule 242 adjusts the interpupillary distance of the virtual reality device for the interpupillary distance according to the wearer.
Focus control provided in this embodiment adjusts the eyeglass of virtual reality device according to the pupil area of wearer's eyes
It is the first adjustable range to distance between screen, so that wearer's eyes are in focusing state, to be adapted to the pendant of different eyesights
Wearer, it is no longer necessary to which wearer replaces eyeglass or manually adjusts focal length, and use is more convenient.
Further, focus control provided in an embodiment of the present invention calculates myopia degree according to the pupil area of wearer,
Second distance of the wearer under focusing state between eyeglass and screen is calculated in conjunction with the first parameter and the second parameter, it will be to pendant
The adjusting of the myopia degree of wearer is converted to the adjusting to eyeglass to the distance between screen, meets the use of different vision users
Demand, and focus adjustment method provided in this embodiment can slightly be transformed existing virtual reality device and can be realized, to void
The improvement cost of the hardware configuration of quasi- real world devices is also smaller.
In several specific embodiments provided by the present invention, it should be understood that disclosed device and method, it can be with
It realizes by another way.For example, device embodiments described above are only schematical, for example, the module
Division, only a kind of logical function partition, there may be another division manner in actual implementation.For those skilled in the art
For member, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or substantially
In the case where feature, the present invention can be realized in other specific forms.Therefore, in all respects, should all will implement
Example regards exemplary as, and is non-limiting, and the scope of the present invention is by appended claims rather than above description limits
It is fixed, it is intended that all changes that come within the meaning and range of equivalency of the claims are included in the present invention.No
It should treat any reference in the claims as limiting the claims involved.Furthermore, it is to be understood that one word of " comprising " is not arranged
Except other units or step, odd number is not excluded for plural number.The multiple units or device stated in device claim can also be by same
One unit or device are implemented through software or hardware.The first, the second equal words are used to indicate names, and are not offered as appointing
What specific sequence.
Embodiment of above is only used to illustrate the technical scheme of the present invention and not to limit it, although referring to the above preferable embodiment party
Formula describes the invention in detail, those skilled in the art should understand that, it can be to technical solution of the present invention
It modifies or equivalent replacement should not all be detached from the spirit and scope of technical solution of the present invention.
Claims (8)
1. a kind of focus adjustment method based on human eyesight characterized by comprising
Obtain pupil area of the wearer's eyes for wearing virtual reality device when the illuminance of bias light is lower than 0.02Lux；
It is determined whether and the pupil area pair according to the corresponding relationship between preset pupil area and the first adjustable range
The first adjustable range answered；
If there is the first adjustable range, then the distance between eyeglass of the virtual reality device to screen is adjusted to described
One adjustable range, so that the wearer's eyes are in focusing state；
If the first adjustable range not corresponding with the pupil area:
The myopia degree of the wearer is calculated according to the pupil area；
Obtain the first parameter and the second parameter, wherein first parameter is eyeglass of the wearer's eyes to virtual reality device
The distance between, second parameter is the eyeglass of the virtual reality device the distance between to screen；
The second adjustable range is calculated according to first parameter, the second parameter and the myopia degree of the wearer；
The eyeglass for adjusting the virtual reality device makes the wearer to the distance between screen extremely second adjustable range
Eyes are in focusing state.
2. focus adjustment method as described in claim 1, which is characterized in that calculate the myopia of the wearer according to the pupil area
Degree includes:
If the pupil area S is 30.74~36.36mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.68；
If the pupil area S is 36.37~41.41mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.25；
If the pupil area S is 42.61~48.57mm2, it is determined that the myopia degree H of the wearer are as follows:
H=| S-30 | * S*1.08.
3. focus adjustment method as described in claim 1, which is characterized in that according to first parameter, the second parameter and the wearing
The myopia degree of person calculates second adjustable range
The second adjustable range Y is calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100, H are the pendant
The myopia degree of wearer.
4. focus adjustment method as described in claim 1, which is characterized in that further include:
Obtain the interpupillary distance of the wearer, wherein the interpupillary distance is the distance between the pupil of the wearer's eyes；
The interpupillary distance of the virtual reality device is adjusted according to the interpupillary distance of the wearer.
5. a kind of focus control based on human eyesight characterized by comprising
Pupil area obtains module, and the wearer's eyes for obtaining wearing virtual reality device are lower than in the illuminance of bias light
Pupil area when 0.02Lux；
First adjustable range determining module, for true according to the corresponding relationship between preset pupil area and the first adjustable range
It is fixed whether to have the first adjustable range corresponding with the pupil area；
First Focusing module is used for if there is the first adjustable range, then by the eyeglass of the virtual reality device between screen
Distance be adjusted to first adjustable range so that the wearer's eyes are in focusing state, further includes:
Myopia degree computing module, for calculating the myopia degree of the wearer according to the pupil area；
Parameter acquisition module, for obtaining the first parameter and the second parameter, wherein first parameter is wearer's eyes to void
The distance between the eyeglass of quasi- real world devices, second parameter be the virtual reality device eyeglass between screen away from
From；
Second adjustable range computing module, based on according to first parameter, the second parameter and the myopia degree of the wearer
Calculation obtains the second adjustable range；
Second Focusing module, for adjust the eyeglass of the virtual reality device to the distance between screen to described second adjust away from
From making the wearer's eyes be in focusing state.
6. focus control as claimed in claim 5, which is characterized in that the myopia degree computing module includes:
First myopia degree computational submodule, if being 30.74~36.36mm for the pupil area S2, it is determined that the wearing
The myopia degree H of person are as follows:
H=| S-30 | * S*1.68；
Second myopia degree computational submodule, if being 36.37~41.41mm for the pupil area S2, it is determined that the wearing
The myopia degree H of person are as follows:
H=| S-30 | * S*1.25；
Third myopia degree computational submodule, if being 42.61~48.57mm for the pupil area S2, it is determined that the wearing
The myopia degree H of person are as follows:
H=| S-30 | * S*1.08.
7. focus control as claimed in claim 5, which is characterized in that the second adjustable range computing module includes:
The second adjustable range Y is calculated according to the following formula2:
Y2=K+Y1-1/φ
Wherein, K is the first parameter, Y1For the second parameter, φ is the diopter of wearer's eyes, and φ=H/100, H are the pendant
The myopia degree of wearer.
8. focus control as claimed in claim 5, which is characterized in that further include interpupillary distance adjustment module, the interpupillary distance adjusts mould
Block includes:
Interpupillary distance acquisition submodule, for obtaining the interpupillary distance of the wearer, wherein the interpupillary distance is the pupil of the wearer's eyes
The distance between hole；
Interpupillary distance adjusting submodule adjusts the interpupillary distance of the virtual reality device for the interpupillary distance according to the wearer.
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| CN110850594B (en) * | 2018-08-20 | 2022-05-17 | 余姚舜宇智能光学技术有限公司 | Head-mounted visual equipment and eyeball tracking system for same |
| CN111294585B (en) * | 2018-12-07 | 2021-12-14 | 深圳市冠旭电子股份有限公司 | VR (virtual reality) equipment and focusing method and device thereof |
| CN109709679A (en) * | 2019-03-14 | 2019-05-03 | 大连交通大学 | A kind of virtual reality enhanced smart glasses device |
| CN113721365A (en) * | 2021-07-22 | 2021-11-30 | 歌尔光学科技有限公司 | Refractive adjustment method of wearable device, wearable device and medium |
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| US8960901B2 (en) * | 2009-02-02 | 2015-02-24 | Johnson & Johnson Vision Care, Inc. | Myopia control ophthalmic lenses |
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