CN106598260A - Eyeball-tracking device, VR (Virtual Reality) equipment and AR (Augmented Reality) equipment by use of eyeball-tracking device - Google Patents
Eyeball-tracking device, VR (Virtual Reality) equipment and AR (Augmented Reality) equipment by use of eyeball-tracking device Download PDFInfo
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- CN106598260A CN106598260A CN201710065547.3A CN201710065547A CN106598260A CN 106598260 A CN106598260 A CN 106598260A CN 201710065547 A CN201710065547 A CN 201710065547A CN 106598260 A CN106598260 A CN 106598260A
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- 230000003190 augmentative effect Effects 0.000 title claims abstract description 13
- 210000001508 eye Anatomy 0.000 claims abstract description 37
- 210000004087 cornea Anatomy 0.000 claims abstract description 10
- 210000005252 bulbus oculi Anatomy 0.000 claims description 105
- 238000012545 processing Methods 0.000 claims description 14
- 241000219739 Lens Species 0.000 description 20
- 210000000695 crystalline len Anatomy 0.000 description 20
- 230000004438 eyesight Effects 0.000 description 5
- 210000000887 face Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 235000009566 rice Nutrition 0.000 description 1
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
- G06F3/013—Eye tracking input arrangements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/012—Walk-in-place systems for allowing a user to walk in a virtual environment while constraining him to a given position in the physical environment
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention discloses an eyeball-tracking device, comprising two eyeball-tracking modules used for tracking the sight of a user; each of the two eyeball-tracking modules is disposed to correspond with one eye; each of the two eyeball-tracking modules comprises a light source component and at least one image sensor component; the light source components face to the direction of eyes of the user and can form at least one corneal reflective spot on eye corneas of the user; the at least one image sensor component is used for continuously capturing images of the eyes of the user; and the image sensor component in each of the eyeball-tracking modules can only receive light emitted by the light source component in the corresponding eyeball-tracking module. The invention also discloses head-mounted virtual reality equipment and head-mounted augmented reality equipment by use of the eyeball-tracking device. According to the eyeball-tracking device, the head-mounted virtual reality equipment and the head-mounted augmented reality equipment by use of the eyeball-tracking device, the problem that the light source components interfere with each other when calibration or in use can be effectively avoided.
Description
Technical field
The present invention relates to eyeball tracking technical field, and in particular to a kind of eyeball tracking device and using eyeball tracking dress
The wear-type virtual reality device put and wear-type augmented reality equipment.
Background technology
Wear-type virtual reality device (also known as VR glasses, or the VR helmets) and wear-type augmented reality equipment are (also known as AR
Glasses, or the AR helmets) it is virtual reality that is currently fast-developing and popularizing and augmented reality product.
The mainstream technology of eyeball tracking is the eye tracking and sight-line detection technology based on image procossing, and the technology is counted in real time
Calculate and record the position that eyes are seen.In prior art, wear-type virtual reality or augmented reality equipment are based primarily upon dark pupil skill
Art, and human eye sight is tracked with the corneal reflection pupil-corneal reflection vector that calculates as a reference point, exist following
Problem：Because right and left eyes correspond to respectively an eyeball tracking module, and identical is adopted in two eyeball tracking modules
Light source, causes when demarcating or using, and the light that the light source in two eyeball tracking modules sends can be interfered, and make calculating
As a result error increase.
The content of the invention
It is an object of the invention to provide a kind of eyeball tracking device, being set using the VR equipment and AR of the eyeball tracking device
It is standby, can be prevented effectively from when demarcating or using, the problem that the light source assembly in two eyeball tracking modules can be interfered.
In order to achieve the above object, the present invention is achieved through the following technical solutions：A kind of eyeball tracking device, its feature
It is to be applied in wear-type virtual reality device or wear-type augmented reality equipment, the eyeball tracking device is included：
For following the trail of two eyeball tracking modules of user sight line, each described eyeball tracking module and an eyes
It is correspondingly arranged；
Each described eyeball tracking module is included；
Can form towards user's eyes direction and on user cornea the light source of at least one corneal reflection
Component；And
For at least one image sensor module of continuous capture user's eyes image；Wherein
Image sensor module in each described eyeball tracking module is only capable of receiving in corresponding eyeball tracking module
The light that sends of light source assembly.
It is preferred that also include a bandpass filter in each described eyeball tracking module, described corneal reflection
Bandpass filter described in reflected light path Jing is incident to described image sensor module, so that described imageing sensor group
Part captures described user's eyes image.
It is preferred that including one or more infrared light supplies in described light source assembly.
It is preferred that the light source assembly in one of eyeball tracking module sends the light of first wave length, another eye
Light source assembly in ball tracing module sends the light of second wave length, also, described first wave length is different from second wave length.
It is preferred that described first wave length is 850 nanometers, described second wave length is 940 nanometers.
It is preferred that described eyeball tracking module also includes a reflecting part, the reflected light path of described corneal reflection
Reflecting part described in Jing is incident to described image sensor module, so that described image sensor module captures institute
The user's eyes image stated.
It is preferred that described eyeball tracking module includes a mirror cup, described mirror cup includes lens carrier and lens, described
Lens carrier includes bracket base and rack side wall.
It is preferred that described eyeball tracking device also includes a central processing unit, described central processing unit is respectively with two
Light source assembly and image sensor module connection in individual eyeball tracking module.
A kind of wear-type virtual reality device, is characterized in, comprising above-mentioned eyeball tracking device.
A kind of wear-type augmented reality equipment, is characterized in, comprising above-mentioned eyeball tracking device.
A kind of eyeball tracking device of the present invention, using VR equipment and AR equipment and the prior art phase of the eyeball tracking device
Than with advantages below：By providing the image sensor module and light source assembly being correspondingly arranged in eyeball tracking module, keep away
Exempt from the problem that the eyeball tracking module of right and left eyes can be interfered, improve precision when demarcating or using.
Description of the drawings
Fig. 1 is the top view after eyeball tracking device assembling of the present invention；
Fig. 2 is the light path schematic diagram of eyeball tracking device；
Eye image when Fig. 3 is using apparatus of the present invention, when user faces；
Eye image when Fig. 4 is using prior-art devices, when user faces；
Eye image when Fig. 5 is using apparatus of the present invention, after eyes of user rotation；
Eye image when Fig. 6 is using prior-art devices, after eyes of user rotation.
Specific embodiment
Embody feature of present invention will in detail to describe in the explanation of back segment with the embodiment of advantage.It should be understood that of the invention
Can have various changes in different examples, it is neither departed from the scope of the present invention, and it is therein explanation and be shown in
Substantially regard purposes of discussion, and be not used to limit the present invention.
The present invention provides a kind of eyeball tracking device, and can be integrated in wear-type virtual reality device or wear-type strengthens existing
In real equipment, for following the trail of the sight line of user, strengthen so as to wear wear-type virtual reality device or wear-type in user
After real world devices, when viewing is located at the display terminal of drawing axis, display terminal can be grasped based on eyeball tracking technology
Make, and realize that man-machine interaction and point of fixation such as render at the function.
Eyeball tracking device in the present invention includes two eyeball tracking modules, each eyeball tracking module and an eyes
It is correspondingly arranged, i.e.,：It is respectively provided with left eye ball tracing module and right eye ball tracing module.Left eye ball tracing module is included：Direction makes
User's eyes direction and the left eye ball light source assembly of at least one corneal reflection can be formed on user cornea, and be used
In at least one left eye ball image sensor module of continuous capture user's eyes image, left eye ball image sensor module is only
The light that left eye ball light source assembly sends can be received；Right eye ball tracing module is included：Towards user's eyes direction and can make
The right eye ball light source assembly of at least one corneal reflection is formed on user's cornea, and for continuous capture user's eyes figure
At least one right eye ball image sensor module of picture, right eye ball image sensor module is only capable of receiving right eye ball light source assembly
The light for going out.
In the present invention, the image sensor module in eyeball tracking module is only capable of receiving in corresponding eyeball tracking module
The light that sends of light source assembly.In order to realize this purpose, in one embodiment of the invention, left eye ball light source assembly sends
Light with first wave length, right eye ball light source assembly sends the light with second wave length, also, first wave length is with second wave length not
Together；Meanwhile, reception corresponding wavelength is equiped with respectively on left eye ball image sensor module and right eye ball image sensor module
Optical filter.
In the present invention, one or more light sources are included in light source assembly, it is preferred that light source is LED infrared light supplies, at this
In the preferred embodiment of invention, 8 LED infrared light supplies are included in light source assembly, left eye ball light source assembly sends wavelength and receives for 850
The infrared light of rice, right eye ball light source assembly sends the infrared light that wavelength is 940 nanometers, the filtering of left eye ball image sensor module
Piece can adopt the filter plate of 850 nanometers ± 15 nanometers of bandpass filter, right eye ball image sensor module to adopt 940 nanometers
± 15 nanometers of bandpass filter；Left eye ball image sensor module in so i.e. achievable correspondence left eye ball tracing module is only
The light that left eye ball light source assembly sends can be received, right eye ball image sensor module is only capable of receiving what right eye ball light source assembly sent
Light.
In the present invention, eyeball tracking device also include central processing unit, central processing unit respectively with two eyeball trackings
Light source assembly and image sensor module connection in module.
It should be noted that the central processing unit of the present invention can be an independent components and parts, and respectively with two eyeballs
Light source assembly and image sensor module connection in tracing module；Can also be discrete two components and parts, i.e. components and parts with
Eyeball tracking module is corresponded.Central processing unit is mainly used in controlling the keying of light source assembly and reception image sensor module
The view data of transmission, and view data is carried out to process acquisition human eye sight.However, in view data described in the invention
Processing function can be performed at central processing unit and/or the ppu communicated with central processing unit.Central processing unit can
To include the element for performing calculating task, such as printed circuit board (PCB) (PCB) and other electronic devices；Can also pass through wired
The terminals such as connected mode or radio connection and mobile phone, computer, the panel computer of outside be connecteds, by mobile phone, computer, put down
The processor of plate computer etc. is processed view data.
In the present invention, eyeball tracking module also includes a mirror cup, due to left eye ball tracing module and right eyeball tracking mould
Block realizes that principle is essentially identical, for convenience of explanation, is introduced by taking an eyeball tracking module as an example below, but this is not
For limiting the scope of the present invention.
As depicted in figs. 1 and 2, mirror cup includes lens carrier and lens 105, and the lens carrier includes bracket base 104
With rack side wall 103, lens carrier is designed or asymmetrical design with the axis of lens 105 as axial symmetry, fully to expose
The working portion of mirror 105 is defined, i.e., bracket base 104 takes hollow design, and such as annulus or square hole is designed, in fastening lens 105
While, expose the working portion of lens 105, and rack side wall 103 is using such as buckle, screw thread, binding agent and/or other are normal
Rule clamp device is connected with the housing of wear-type virtual reality device or wear-type augmented reality equipment；And lens 105 are by all
As buckle, screw thread, binding agent and/or other conventional fastening devices are arranged on the inner side of bracket base 104, i.e. bracket base 104
Compared with lens, eyes 400 of the bracket base 104 closer to user.In the present embodiment, light source assembly 101 is arranged on and props up
On the circumference of frame base 104, still by comprising as a example by 8 LED infrared light supplies, the fixed bit of 8 LED infrared light supplies be equipped with it is various,
Image taking sensor component 102 can capture at least one corneal reflection and be defined.Implement for convenience, in the preferable of the present invention
In embodiment, using the equally distributed arrangement of 8 LED infrared light supplies, with reference to Fig. 1, LED infrared light supplies are embedded in support
On base 104, and towards the eyes of user.
It should be noted that the type of said lens 105 can have various, such as lens 105 can be planoconvex lenss, it is also possible to
It is biconvex lens symmetrically or non-symmetrically, it is also possible to meniscuss, the present invention is not limited to the type of lens 105.
In the present invention, image sensor module 102 is arranged on the position for not affecting user sight line, the one of the present invention
In individual embodiment, as shown in figure 1, image sensor module 102 is embedded on rack side wall 103, now should also contain one it is reflective
Part 107, reflecting part 107 is generally disposed between lens 105 and display terminal 200, image sensor module 102 it is photosensitive
The direction of reflecting part 107 is partially toward, image sensor module 102 is located substantially between lens 105 and reflecting part 107,
Bandpass filter 106 is also coupled with image sensor module 102.As shown in Fig. 2 when user watches position by lens 105
When the display terminal 200 at rear, 8 LED infrared light supplies to the eyes of user launch infrared light, incide on cornea, angle
Film is reflected infrared light, forms corneal reflection, and now, image sensor module 102 shoots user's eyes image, and
The view data is transmitted to central processing unit 300, central processing unit 300 is processed view data, through algorithm process
Human eye fixation point position is obtained, display terminal 200 is operated based on position is watched attentively, realize that man-machine interaction and point of fixation are rendered
Etc. function.
It should be noted that display terminal 200 can allow user to watch by wear-type virtual reality device or wear-type
Vision data or other vision datas that augmented reality equipment is provided, such as game picture etc..It is merely exemplary, it is such
Display terminal can include lcd screen, LED screen, OLED screen curtain, projector and/or other Display Technique (for example, Mobile phone screens
Curtain, panel computer screen etc.).
Eyeball tracking device of the prior art also includes two eyeball tracking modules, but, two eyeball tracking modules
In light source assembly send the infrared light of phase co-wavelength, for example, be 940 nano wave lengths, so, the meeting when Eye-controlling focus are carried out
Generation is interfered.
With reference to Fig. 1, still by taking an eyeball tracking module as an example, 8 light sources are uniform around eye center when user is faced
Distribution or approaches uniformity distribution, with reference to Fig. 3, can produce 8 corneal reflections on cornea.But for eye of the prior art
For ball follow-up mechanism, because the light source in two eyeball tracking modules is using the LED infrared light supplies of phase co-wavelength, therefore,
When user faces (during demarcation), the corneal reflection more than 8 may be produced on cornea, with reference to shown in Fig. 4, now, be made
User can produce 9 corneal reflections when facing on cornea, wherein 10 is noise spot, if now eyeball tracking device is with 9
Individual corneal reflection carries out Eye-controlling focus, then can cause deviation.
When the Rotation of eyeball of user (when normally using), now, the number meeting of corneal reflection is produced on cornea
Less than 8, such as there are 3 corneal reflections in Fig. 5, now eyeball tracking device carries out Eye-controlling focus with 3 corneal reflections,
Obtain human eye sight scope；And device in the prior art, light source assembly is not made a distinction, when image sensor module and
When the position of light source assembly is respectively provided with identical, as shown in figure 5, the eye image more than 3 corneal reflections can be produced, as schemed institute
4 corneal reflections are shown with, wherein 20 is noise spot, now eyeball tracking device carries out Eye-controlling focus with 4 corneal reflections,
Deviation can then be caused.From the point of view of contrast, the eyeball tracking device of the present invention can eliminate influencing each other between two light source assemblies,
Improve the degree of accuracy of Eye-controlling focus.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Various modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of eyeball tracking device, it is characterised in that be applied to wear-type virtual reality device or wear-type augmented reality sets
In standby, the eyeball tracking device is included：
For following the trail of two eyeball tracking modules of user sight line, each described eyeball tracking module is corresponding with an eyes
Arrange；
Each described eyeball tracking module is included；
Can form towards user's eyes direction and on user cornea the light source assembly of at least one corneal reflection；
And
For at least one image sensor module of continuous capture user's eyes image；Wherein
Image sensor module in each described eyeball tracking module is only capable of receiving the light in corresponding eyeball tracking module
The light that source component sends.
2. eyeball tracking device as claimed in claim 1, it is characterised in that also include in each described eyeball tracking module
One bandpass filter, the reflected light path of described corneal reflection is incident to imageing sensor group through described bandpass filter
Part, so that described image sensor module captures described user's eyes image.
3. eyeball tracking device as claimed in claim 1, it is characterised in that include one or more in described light source assembly
Infrared light supply.
4. the eyeball tracking device as described in claim 1 or 3, it is characterised in that the light in one of eyeball tracking module
Source component sends the light of first wave length, and the light source assembly in another eyeball tracking module sends the light of second wave length,
Also, described first wave length is different from described second wave length.
5. eyeball tracking device as claimed in claim 4, it is characterised in that described first wave length is 850 nanometers, described
Second wave length is 940 nanometers.
6. eyeball tracking device as claimed in claim 1 or 2, it is characterised in that described eyeball tracking module also includes
Reflecting part, the reflecting part described in the reflected light path Jing of described corneal reflection is incident to described imageing sensor group
Part, so that described image sensor module captures described user's eyes image.
7. the eyeball tracking device as described in claim 1 or 6, it is characterised in that described eyeball tracking module includes a mirror
Cup, described mirror cup includes lens carrier and lens, and the lens carrier includes bracket base and rack side wall.
8. eyeball tracking device as claimed in claim 1, it is characterised in that described further comprising a central processing unit
Central processing unit is connected respectively with light source assembly and image sensor module in two eyeball tracking modules.
9. a kind of wear-type virtual reality device, it is characterised in that comprising such as claim 1～8 any one claim institute
The eyeball tracking device stated.
10. a kind of wear-type augmented reality equipment, it is characterised in that comprising such as claim 1～8 any one claim institute
The eyeball tracking device stated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065547.3A CN106598260A (en) | 2017-02-06 | 2017-02-06 | Eyeball-tracking device, VR (Virtual Reality) equipment and AR (Augmented Reality) equipment by use of eyeball-tracking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710065547.3A CN106598260A (en) | 2017-02-06 | 2017-02-06 | Eyeball-tracking device, VR (Virtual Reality) equipment and AR (Augmented Reality) equipment by use of eyeball-tracking device |
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| CN106598260A true CN106598260A (en) | 2017-04-26 |
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Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132923A (en) * | 2017-07-11 | 2017-09-05 | 黄荣兵 | Wearable device and telecontrol equipment |
| CN107145086A (en) * | 2017-05-17 | 2017-09-08 | 上海青研科技有限公司 | A kind of Eye-controlling focus device and method for exempting from calibration |
| CN108205374A (en) * | 2018-01-02 | 2018-06-26 | 京东方科技集团股份有限公司 | Eyeball tracking module and its method, the video glass of a kind of video glass |
| CN108354584A (en) * | 2018-03-06 | 2018-08-03 | 京东方科技集团股份有限公司 | Eyeball tracking module and its method for tracing, virtual reality device |
| CN108646413A (en) * | 2018-05-13 | 2018-10-12 | 深圳纬目信息技术有限公司 | A kind of headset equipment of the eyeball tracking device of the optical waveguide of free form surface containing multilayer |
| CN108681400A (en) * | 2018-05-13 | 2018-10-19 | 深圳纬目信息技术有限公司 | A kind of eyeball tracking device based on multilayer free form surface optical waveguide |
| CN109498259A (en) * | 2018-11-09 | 2019-03-22 | 联想(北京)有限公司 | A kind of processing equipment |
| CN109740540A (en) * | 2019-01-04 | 2019-05-10 | 北京七鑫易维信息技术有限公司 | Light-guiding type eyeball tracking equipment, eyeball tracking method and headset equipment |
| CN109839742A (en) * | 2017-11-29 | 2019-06-04 | 深圳市掌网科技股份有限公司 | A kind of augmented reality device based on Eye-controlling focus |
| CN109932821A (en) * | 2017-12-18 | 2019-06-25 | 深圳纬目信息技术有限公司 | A kind of AR helmet |
| CN110193189A (en) * | 2018-02-27 | 2019-09-03 | 宏达国际电子股份有限公司 | Traceable Optical devices |
| CN110208947A (en) * | 2019-06-03 | 2019-09-06 | 歌尔股份有限公司 | Display equipment and display methods based on human eye tracking |
| CN110426845A (en) * | 2019-08-09 | 2019-11-08 | 业成科技（成都）有限公司 | Eyeball tracking framework |
| CN110516662A (en) * | 2018-05-22 | 2019-11-29 | 宏达国际电子股份有限公司 | Eyeball tracking device and its light source control method |
| CN111781723A (en) * | 2020-07-01 | 2020-10-16 | 业成科技（成都）有限公司 | Eyeball tracking structure, electronic device and intelligent glasses |
| CN111783660A (en) * | 2020-07-01 | 2020-10-16 | 业成科技（成都）有限公司 | Eye movement tracking device and electronic device using same |
| CN112578557A (en) * | 2019-09-30 | 2021-03-30 | 三星显示有限公司 | Electronic device |
| CN112926521A (en) * | 2021-03-30 | 2021-06-08 | 青岛小鸟看看科技有限公司 | Eyeball tracking method and system based on light source on-off |
| CN113138664A (en) * | 2021-03-30 | 2021-07-20 | 青岛小鸟看看科技有限公司 | Eyeball tracking system and method based on light field perception |
| CN113589940A (en) * | 2021-08-17 | 2021-11-02 | 业成科技（成都）有限公司 | Human eye tracking system and virtual reality display device |
| CN114556267A (en) * | 2019-08-06 | 2022-05-27 | 眼科技术数字系统公司 | Tablet computer enhanced with an internally integrated eye-tracking camera assembly |
| CN114646457A (en) * | 2022-05-20 | 2022-06-21 | 南昌虚拟现实研究院股份有限公司 | Eye tracking accuracy testing method and system |
| WO2022205789A1 (en) * | 2021-03-30 | 2022-10-06 | 青岛小鸟看看科技有限公司 | Eyeball tracking method and system based on virtual reality |
| WO2023093648A1 (en) * | 2021-11-26 | 2023-06-01 | 北京七鑫易维信息技术有限公司 | Eye tracking module and manufacturing method therefor, head-mounted display device |
| WO2023116541A1 (en) * | 2021-12-22 | 2023-06-29 | 华为技术有限公司 | Eye tracking apparatus, display device, and storage medium |
| WO2023198003A1 (en) * | 2022-04-13 | 2023-10-19 | 北京七鑫易维信息技术有限公司 | Eyeball tracking apparatus and head-mounted display device |
| WO2023246814A1 (en) * | 2022-06-21 | 2023-12-28 | 北京七鑫易维信息技术有限公司 | Eyeball tracking optical system and head-mounted device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145086A (en) * | 2017-05-17 | 2017-09-08 | 上海青研科技有限公司 | A kind of Eye-controlling focus device and method for exempting from calibration |
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