CN206594689U - A kind of Eye-controlling focus device and head-mounted display apparatus - Google Patents
A kind of Eye-controlling focus device and head-mounted display apparatus Download PDFInfo
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- CN206594689U CN206594689U CN201720338755.1U CN201720338755U CN206594689U CN 206594689 U CN206594689 U CN 206594689U CN 201720338755 U CN201720338755 U CN 201720338755U CN 206594689 U CN206594689 U CN 206594689U
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- infrared lamp
- eye
- controlling focus
- infrared
- focus device
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Abstract
The utility model provides a kind of Eye-controlling focus device and head-mounted display apparatus, wherein, the Eye-controlling focus device includes：Including thermal camera, infrared lamp group and control circuit, the control circuit is electrically connected with the infrared lamp group, and the infrared lamp group includes at least two infrared lamps for being arranged at diverse location；The thermal camera, the eyeball image for gathering the user when the infrared lamp is lighted；The control circuit, for controlling the infrared lamp number for reaching effective operating brightness in the infrared lamp group respectively when the Eye-controlling focus device works in iris recognition and Eye-controlling focus, effective operating brightness refers to the brightness not less than threshold luminance.The utility model enables Eye-controlling focus device comparatively fast to obtain user identity when working in iris recognition, when working in Eye-controlling focus, more accurate to obtain user's direction of visual lines.
Description
Technical field
The utility model is related to technical field of electronic equipment, in particular to a kind of Eye-controlling focus device and wear-type
Display device.
Background technology
Existing Eye-controlling focus device can be provided simultaneously with Eye-controlling focus function and iris identifying function, on the one hand to regard
Line follow-up mechanism can obtain the direction of visual lines of user, while user identity can be accurately identified.
It was discovered by researchers that being all in the prior art while using when realizing Eye-controlling focus function and iris identifying function
Video camera carries out shooting crawl eyes image in the case of infrared light compensating lamp light filling to ocular, then relies on different figures
As recognizer judges blinkpunkt position and the subscriber identity information of eyes, during the two, reach and effectively work bright
The infrared lamp number of degree will not change, i.e. infrared lamp reaches the infrared of effective operating brightness in iris recognition and Eye-controlling focus
The number of lamp is consistent.Thus when the infrared lamp number for reaching effective operating brightness is more, Eye-controlling focus device work is caused
, can partial occlusion rainbow due to including more infrared light spot on the eyeball image of infrared camera scan when making in iris recognition
Film image, causes that whole eye features can not be obtained.Or when infrared lamp number is less, cause Eye-controlling focus device work
When making in Eye-controlling focus, because the infrared light spot on the eyeball image of infrared camera scan is less, easily on iris region
Infrared light spot is not collected, causes direction of visual lines to calculate inaccurate or can not calculate.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of Eye-controlling focus device and head-mounted display apparatus, with
Reduced when the Eye-controlling focus device works in iris recognition in infrared lamp group and reach that the infrared lamp number of effective operating brightness is kept away
Exempt from the interference problem that excessive infrared lamp is gathered to eye feature value, and when the Eye-controlling focus device works in Eye-controlling focus,
The number of the infrared lamp of effective operating brightness is increased up to so that Eye-controlling focus is more accurate.
In a first aspect, the utility model embodiment provides a kind of Eye-controlling focus device, including thermal camera, infrared lamp
Group and control circuit, the control circuit are electrically connected with the infrared lamp group, and the infrared lamp group is arranged at including at least two
The infrared lamp of diverse location；
The thermal camera, the eyeball image for gathering the user when the infrared lamp is lighted；
The control circuit, for being controlled respectively when the Eye-controlling focus device works in iris recognition and Eye-controlling focus
The infrared lamp number for reaching effective operating brightness in the infrared lamp group, effective operating brightness refers to the brightness not less than threshold
It is worth brightness.
With reference in a first aspect, the utility model embodiment provides the first possible embodiment of first aspect, institute
State infrared lamp group and the infrared lamp group that is arranged at the second place that infrared lamp group includes being arranged at first position, be arranged at this first
The eyeball of the infrared light that sends not direct irradiation user, is arranged at the infrared lamp of the second place during infrared lamp group work of position
The eyeball of the infrared light direct irradiation user sent during group work；
The control circuit, first position is placed in for working in iris recognition time control in the Eye-controlling focus device and setting up
Infrared lamp group reach effective operating brightness, work in Eye-controlling focus time control in the Eye-controlling focus device and set up and be placed in second
The infrared lamp group put reaches effective operating brightness.
With reference in a first aspect, the utility model embodiment provides second of possible embodiment of first aspect, institute
Thermal camera is stated to electrically connect with the control circuit；
The thermal camera, is additionally operable to shape on thermal camera described in the eyeball image and the Infrared irradiation
Into iris image be transferred to the control circuit；
The control circuit, is additionally operable to adjust the brightness for the infrared lamp for reaching effective operating brightness so that the eyeball
The gray value of image reaches default gray value.
With reference in a first aspect, the utility model embodiment provides the third possible embodiment of first aspect, institute
Stating infrared lamp group includes the first infrared lamp and the second infrared lamp, and the quantity of first infrared lamp is less than second infrared lamp
Quantity；
The control circuit, for when the Eye-controlling focus device works in iris recognition, control described first to be infrared
Lamp reaches effective operating brightness, controls the brightness of second infrared lamp to be less than the threshold luminance；And, for being regarded described
When line follow-up mechanism works in Eye-controlling focus, the brightness of first infrared lamp is controlled to be less than the threshold luminance, control is described
Second infrared lamp reaches effective operating brightness.
With reference in a first aspect, the utility model embodiment provides the 4th kind of possible embodiment of first aspect, institute
Control circuit is stated to be electrically connected with infrared lamp each described；
The control circuit, for when the Eye-controlling focus device works in iris recognition, control first to set quantity
The infrared lamp reach effective operating brightness；And, for when the Eye-controlling focus device works in Eye-controlling focus, controlling
The infrared lamp of second setting quantity reaches effective operating brightness；The first setting quantity is less than the described second setting number
Amount.
With reference to the first possible embodiment of first aspect, the utility model embodiment provides the of first aspect
Five kinds of possible embodiments, the infrared lamp group of the first position includes at least two infrared lamps, the second place it is red
Outer lamp group includes at least three infrared lamp；
The emission wavelength of each infrared lamp in the infrared lamp group of the first position is less than the infrared of the second place
The emission wavelength of infrared lamp in lamp group.
With reference to the 5th kind of possible embodiment of first aspect, the utility model embodiment provides the of first aspect
The emission wavelength of at least two infrared lamps is different in six kinds of possible embodiments, the infrared lamp group of the first position.
With reference to the 6th kind of possible embodiment of first aspect, the utility model embodiment provides the of first aspect
Seven kinds of possible embodiments, the thermal camera includes the first thermal camera and the second thermal camera, the control
Circuit is additionally operable to when Eye-controlling focus device works in iris recognition, control the first thermal camera work；When Eye-controlling focus dress
Put when working in Eye-controlling focus, control the second thermal camera work.
With reference in a first aspect, the utility model embodiment provides the 8th kind of possible embodiment of first aspect, institute
State control circuit to be additionally operable to when the infrared lamp reaches effective operating brightness, control the thermal camera to start working.
Second aspect, the utility model embodiment provides a kind of head-mounted display apparatus, including first aspect to first
Any of 8th kind of possible embodiment of aspect Eye-controlling focus device.
A kind of Eye-controlling focus device and head-mounted display apparatus that the utility model embodiment is provided, it is and of the prior art
Eye-controlling focus device is compared, and its infrared lamp group includes at least two infrared lamps for being arranged at diverse location, and control circuit is in sight
Follow-up mechanism can control reaching in the infrared lamp group effectively to work bright respectively when working in iris recognition and Eye-controlling focus
The infrared lamp number of degree so that Eye-controlling focus device reaches the infrared lamp of effective operating brightness under both working conditions
Number is different, so that Eye-controlling focus device can respectively be controlled infrared when working in iris recognition and Eye-controlling focus
The number of the infrared lamp of effective operating brightness is reached in lamp group so that Eye-controlling focus device effectively works when working in iris recognition
The number of the infrared lamp of brightness is few so that do not have more infrared light spot on the user eyeball image that thermal camera is obtained, from
And user identity can be recognized by obtaining whole eye features.And cause Eye-controlling focus device to work in Eye-controlling focus
The number of the infrared lamp of Shi Youxiao operating brightness is more so that the infrared light spot on user eyeball image that thermal camera is obtained
It is more, so that the more accurate direction of visual lines for obtaining user.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 shows a kind of structural representation for Eye-controlling focus device that the utility model embodiment is provided；
Fig. 2 shows the schematic diagram in kind for the annular infrared light board that the utility model embodiment is provided；
Fig. 3 shows the circuit diagram for the control circuit that the utility model embodiment is provided；
Fig. 4 shows the wear-type virtual reality glasses schematic diagram in kind that the utility model embodiment is provided.
Icon：101- thermal cameras；102- infrared lamp groups；103- controls circuit；1021- infrared lamps；400- annulars
Infrared light board；401- frames；402- camera lenses.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment be only a part of embodiment of the utility model, rather than whole embodiment.Generally here described in accompanying drawing
It can arrange and design with a variety of configurations with the component of the utility model embodiment shown.Therefore, below to
The detailed description of the embodiment of the present utility model provided in accompanying drawing is not intended to limit claimed model of the present utility model
Enclose, but be merely representative of selected embodiment of the present utility model.Based on embodiment of the present utility model, those skilled in the art exist
The every other embodiment obtained on the premise of not making creative work, belongs to the scope of the utility model protection.
Embodiment 1
The utility model embodiment 1 provides a kind of Eye-controlling focus device, as shown in figure 1, including thermal camera 101,
Also include infrared lamp group 102 and control circuit 103, wherein control circuit 103 and infrared lamp group 102 are electrically connected, wherein, infrared lamp
Group 102 includes at least two infrared lamps 1021 for being arranged at diverse location, and wherein thermal camera 101 can be with control circuit
103 electrical connections.
Thermal camera 101, the eyeball image for gathering the user when above-mentioned infrared lamp 1021 is lighted.
When above-mentioned Eye-controlling focus device works, and local environment is more dark, then thermal camera 101 is needed infrared
The eyeball image of user is gathered when lamp 1021 is lighted.
Circuit 103 is controlled, it is infrared for being controlled respectively when Eye-controlling focus device works in iris recognition and Eye-controlling focus
The number of the infrared lamp 1021 for reaching effective operating brightness in lamp group 102, effective operating brightness refers to the brightness not less than threshold
It is worth brightness.
Wherein reach that the infrared lamp 1021 of effective operating brightness refers to that the infrared lamp of the brightness shines directly into user eyeball
When, when thermal camera 101 collects the user eyeball image, the infrared light spot collected in iris region can block local
Iris image so that whole eye features can not be extracted.If the brightness of infrared lamp 1021 is very dark, it is irradiated to user eyeball
When, the iris image in the eyeball image that thermal camera is extracted, not by partial occlusion, does not influence to extract whole eyes
Characteristic value, then be referred to as the very dark infrared lamp 1021 of this part luma and do not reach effective operating brightness.For the ease of once chatting
State conveniently, by by reach the infrared lamp 1021 of effective operating brightness irradiate formation infrared light spot be referred to as include infrared light spot,
The infrared light spot formed when the infrared lamp 1021 for being not reaching to effective operating brightness is irradiated into eyeball image does not form referred to as red
Outer hot spot, because infrared light spot now does not form interference when gathering eye feature value, in Eye-controlling focus, to calculating sight
Direction is not also played a role.
Threshold intensity value can be drawn by test of many times, less than threshold luminance infrared light irradiation user eyeball when, it is red
On iris image in the eyeball image that outer video camera is obtained, the brightness of formed infrared light spot is especially low, or infrared light spot
It is especially small, do not influence to extract the eye feature value of user.
A kind of preferably embodiment, in the technical scheme that the utility model embodiment 1 is proposed, infrared lamp group includes setting
The infrared lamp group for being placed in first position and the infrared lamp group for being arranged at the second place, are arranged at the first position infrared lamp group work
When send infrared light work when the infrared light that sends not direct irradiation user eyeball, be arranged at the infrared lamp of the second place
The eyeball of the infrared light direct irradiation user sent during the infrared light work sent during group work.
Circuit is controlled, the infrared lamp of first position is placed in for working in iris recognition time control in Eye-controlling focus device and setting up
Group reaches effective operating brightness, works in Eye-controlling focus time control in Eye-controlling focus device and sets up and is placed in the infrared lamp group of the second place
Reach effective operating brightness.
Wherein, direct irradiation user eyeball does not refer to the infrared of the position when being arranged at the infrared lamp work of first position
Lamp does not have direct irradiation human eye when reaching effective operating brightness, but irradiates elsewhere, such as the eyelid of user passes through
Human eye is irradiated in diffusing reflection, is then imaged on thermal camera, and thermal camera obtains the eyeball image of user, and the eyeball
Iris region on image is without infrared light spot.And direct irradiation eyes of user when being arranged at the infrared lamp work of the second place, warp
The mirror-reflection of eyeball is crossed, is imaged on thermal camera, thermal camera obtains the eyeball image of user, and the eyeball figure
As upper iris region has infrared light spot.
Two annular lamp plates can be such as set, and a diameter is slightly larger than another, by the big annular lamp plate of diameter
It is sheathed on the less annular lamp plate of diameter, the annular lamp plate being relatively large in diameter is set and arrives distant apart from user eyeball
Place, and the infrared light not direct irradiation user eyeball of its transmitting, but the region of irradiation peribulbar, by the region
Diffusing reflection, a part, which diffuses, is irradiated to user eyeball, then is imaged on thermal camera, so that thermal camera is obtained
There is no infrared light spot on the eyeball image taken.
In the above case said, being arranged at the infrared lamp group of first position includes at least two infrared lamps, is arranged at second
The infrared lamp group put at least includes 3 infrared lamps, and the emission wavelength of each infrared lamp in the infrared lamp group of first position is small
In the emission wavelength of the infrared lamp of the infrared lamp group of the second place.
In iris recognition, in order to improve the iris recognition rate to user eyeball image, it is easy to extract iris feature value, one
As using wavelength between 760nm~850nm infrared light, and in Eye-controlling focus, in order to improve the infrared light in eyeball image
The definition of spot, and for the protection to user eyeball, the general infrared light for using wavelength between 850nm~940nm.
Particularly, in iris recognition, due to iris recognition rate except the wavelength by infrared light is influenceed, also by user
The influence of the color of iris region in eyes.Therefore, a kind of preferably embodiment, is proposed in the utility model embodiment 1
Technical scheme in, the emission wavelength for being arranged at least two infrared lamps in the infrared lamp group of first position is different, such as
Including 3 infrared lamps, it is 770nm, 810nm and 840nm respectively that the wavelength for the infrared light that they send, which is,.When some user makes
With the Eye-controlling focus device, and when carrying out iris recognition, allow the lamp of these three wavelength effectively to work respectively, check infrared take the photograph
Three images that camera is obtained respectively, take that most clearly image, i.e. gray value are maximum one, then the infrared lamp for corresponding to work is
The infrared lamp that the user is best suitable for.
A kind of preferably embodiment, is proposed in the utility model embodiment 1, and thermal camera includes first and infrared taken the photograph
Camera and the second thermal camera, control circuit are additionally operable to when Eye-controlling focus device works in iris recognition, and control first is red
Outer camera operation；When Eye-controlling focus device works in Eye-controlling focus, control the second thermal camera work.First infrared takes the photograph
The wavelength for the infrared light that camera is received is less than the wavelength for the infrared light that the second thermal camera is received.
When Eye-controlling focus device works in iris recognition respectively and during Eye-controlling focus, reached in control infrared lamp group 102
The number of infrared lamp 1021 of effective operating brightness is different so that when Eye-controlling focus device works in iris recognition, thermal camera
101 collect on the eyeball image of user not comprising infrared light spot or comprising seldom infrared light spot, thus are avoided that infrared take the photograph
There is excessive infrared light spot on the eyeball image that camera 101 is obtained, so that the All Eigenvalues of eyeball can not be extracted, and can not
Complete film identification.Simultaneously so that when Eye-controlling focus device works in Eye-controlling focus, have and more reach the infrared of effective operating brightness
Lamp 1021 irradiates the pupil region of user eyeball, so that in the eyeball image that thermal camera 101 is obtained, in the pupil of eyeball
Hole immediate vicinity is dispersed with more infrared light spot, can be more by calculating the distance of pupil center and each infrared light spot
The accurate direction of visual lines for determining user.
The Eye-controlling focus device can be used for virtual reality device, can be used for augmented reality equipment or its wear-type
Eye control equipment, the equipment can have the iris identifying function to user and the direction of visual lines of determination user concurrently, specifically using ring
Border is not specifically limited herein.
The control circuit 103 includes processor, and processor can adjust infrared lamp by output pulse width modulated signal
The number of the infrared lamp 1021 for reaching effective operating brightness in group 102.
Such as, can be by the test of early stage, when obtaining infrared lamp 1021 and reaching effective operating brightness, the minimum electricity passed through
Flow valuve, then can adjust electric current so that the electric current is more than or equal to above-mentioned minimum current by output pulse width modulated signal
Value.
In practical operation, when the brightness of infrared lamp 1021 reaches effective operating brightness, the eyeball that thermal camera is obtained
The infrared light spot in iris image or iris image in image, is not more visible situation, then can adjust infrared lamp
1021 brightness so that above-mentioned iris image and infrared light spot are clear.
A kind of preferably embodiment, is proposed in the utility model embodiment 1, sees Fig. 1, thermal camera 101 and control
Circuit 103 processed is electrically connected；
Wherein, thermal camera 101, are additionally operable to the eyeball image transmitting of the user of acquisition to control circuit 103.
Circuit 103 is controlled, is additionally operable to adjust the brightness for the infrared lamp 1021 for reaching effective operating brightness so that eyeball image
Gray value reach default gray value.
Such case includes：When Eye-controlling focus device works in iris recognition, the control regulation user eyeball figure of circuit 103
The gray value of texture image as in so that texture becomes apparent from, and increases the resolution of the texture, is easy to be quickly completed iris knowledge
Not.When Eye-controlling focus device works in Eye-controlling focus, control circuit 103 regulation obtain user eyeball image in pupil and
The gray value of infrared light spot, is easy to obtain more clearly pupil and the image of infrared light spot.
Such as, the gray value of the texture prestored in the processor in controlling circuit 103 in eyeball image is 108, is preset
The gray value of light spot image is 100, or the intensity value ranges that prestore.When Eye-controlling focus device works in iris recognition,
Processor in control circuit 103 may determine that whether the gray value of the texture image received reaches default gray value 108,
Or default intensity value ranges whether are reached, if reaching, the brightness of infrared lamp 1021 now is not adjusted, if not up to,
The brightness of infrared lamp 1021 can be adjusted by output pulse width modulated signal.
When Eye-controlling focus device works in Eye-controlling focus, the processor in control circuit 103 may determine that what is received
Whether the gray value of the image of the infrared light spot in eyeball image reaches default gray value 100, or whether reaches one prestored
Individual intensity value ranges, if reaching, the brightness of infrared lamp 1021 now is not adjusted, if not up to, can be by exporting arteries and veins
Rush the brightness that bandwidth modulation signals adjust infrared lamp 1021.
Wherein, pulse width modulation is a kind of analog control mode, and it is according to the change of respective loads come modulation transistor
The biasing of base stage or metal-oxide-semiconductor grid, to realize the change of transistor or metal-oxide-semiconductor ON time, so as to realize switching power supply
The change of output.This mode can make the output voltage of power supply keep constant in operation conditions change, be to utilize microprocessor
A kind of very effective technology for being controlled to analog circuit of data signal.
Here, can by adjusting the dutycycle of pulse width modulating signal, to adjust the size of output current, certainly,
The brightness that infrared lamp 1021 is adjusted by output pulse width modulated signal is only a kind of embodiment, it is not limited to such a
Mode.
A kind of preferably embodiment, proposes, it is infrared that infrared lamp group 102 includes first in the utility model embodiment 1
Lamp and the second infrared lamp, and quantity of the quantity less than the second infrared lamp of the first infrared lamp；
Circuit 103 is controlled, for when Eye-controlling focus device works in iris recognition, the first infrared lamp of control to reach effectively
Operating brightness, control second is infrared to be less than threshold luminance；And, for when Eye-controlling focus device works in Eye-controlling focus, controlling
The first infrared lamp is made less than threshold luminance, the second infrared lamp of control reaches effective operating brightness.
The brightness of wherein control infrared lamp is less than threshold luminance, including the infrared lamp is directly closed.
Such as, the number of the first infrared lamp is 1, and the number of the second infrared lamp is 8, when Eye-controlling focus device is worked in
During iris recognition, by controlling circuit 103 to control the infrared lamp of the first infrared lamp, i.e., 1 to reach effective operating brightness；When sight is chased after
When track device works in Eye-controlling focus, by controlling circuit 103 to control the infrared lamp of the second infrared lamp, i.e., 8 to reach effective work
Brightness.
A kind of preferably embodiment, proposes in the utility model embodiment 1, can cause the first infrared lamp and second
It is arranged in parallel, is arranged in series between each infrared lamp in the second infrared lamp between infrared lamp.
Another preferably embodiment, is proposed in the utility model embodiment 1, control circuit 103 and infrared lamp group
Each infrared lamp 1021 in 102 is electrically connected；
Now, circuit 103 is controlled, for when Eye-controlling focus device works in iris recognition, control first to set quantity
Infrared lamp 1021 reach effective operating brightness；And for when Eye-controlling focus device works in Eye-controlling focus, controlling second
The infrared lamp 1021 of setting quantity reaches effective operating brightness；Wherein, the first setting quantity is less than the second setting quantity.
Such as, first quantity is set as 1, second sets quantity as 8, when Eye-controlling focus device works in iris recognition
When, control circuit 103 controls 1 infrared lamp 1021 in infrared lamp group 102 to reach effective operating brightness；When Eye-controlling focus device
When working in Eye-controlling focus, 8 infrared lamps in the control control infrared lamp of circuit 103 group 102 reach effective operating brightness, and this
8 infrared lamps 1021 can include that 1 infrared lamp 1021 lighted in above-mentioned iris recognition.
A kind of preferably embodiment, is proposed in the utility model embodiment 1, each in above-mentioned infrared lamp group 102
Infrared lamp 1021 is connected in parallel.
A kind of preferably embodiment, is proposed in the utility model embodiment 1, and above-mentioned Eye-controlling focus device also includes red
Outer lamp plate, the infrared light board is used to carry infrared lamp 1021, can also be arranged on control circuit 103 and thermal camera 101
On the infrared light board.
A kind of preferably embodiment, in the technical scheme that the utility model embodiment 1 is proposed, the infrared light board is circle
Annular infrared light board 400, each infrared lamp 1021 is evenly distributed on the annular infrared light board 400.As shown in Fig. 2 red
Outer lamp group 102 1 has 8 infrared lamps 1021.8 infrared lamps 1021 are evenly distributed in the annular infrared light board 400
On, a circle is surrounded, the interval of adjacent infrared lamp is equal.Control circuit 103 now is as shown in Figure 3.
Eye-controlling focus device also includes power supply module, and the power supply module is used to power to control circuit and thermal camera.
A kind of preferably embodiment, in the technical scheme that the utility model embodiment 1 is proposed, control circuit is additionally operable to
When infrared lamp reaches effective operating brightness, control thermal camera is started working.
In order to save the power consumption to power supply module, control circuit 103 can also control the exposure of thermal camera 101
Time lights and the fall time with infrared lamp 1021.
A kind of preferably embodiment, in the technical scheme that embodiment 1 is proposed, Eye-controlling focus device works in sight and chased after
During track pattern, the thermal camera time for exposure is set to fixed maximum values, and control circuit is adjusted by adjusting the pulse width of output
When the infrared lamp that signal processed will be operate in Eye-controlling focus is adjusted to appropriate brightness, control thermal camera output shoots synchronous letter
Number, control works in the infrared lamp extinguishing of Eye-controlling focus after the completion of shooting.So that working in the flicker of the infrared lamp of Eye-controlling focus
Frequency is identical with thermal camera filming frequency.
When Eye-controlling focus device works in iris recognition, control circuit is believed again by the pulse width modulation of regulation output
When the infrared lamp that number will be operate in iris recognition is adjusted to appropriate brightness, control thermal camera output shoots synchronizing signal, claps
Control works in the infrared lamp extinguishing of iris recognition after the completion of taking the photograph.So that work in the flicker frequency of the infrared lamp of iris recognition with
Thermal camera filming frequency is identical.
In addition, in different application environments, its mode of operation, such as, Jin Jinkai can be selected in Eye-controlling focus device
Iris recognition pattern is opened, only Eye-controlling focus pattern is opened or two kinds of mode of operations is opened.
Such as, Eye-controlling focus device is applied to a kind of environment higher to security requirement, can cause iris recognition mould
Formula is switched on once in separated in time.And Eye-controlling focus device is when carrying out Eye-controlling focus, the unlatching iris of spaced rows
Identification function.
In a kind of preferably embodiment, the technical scheme proposed in the utility model embodiment 1, control circuit control
Eye-controlling focus and iris recognition alternate cycles, it is bright that control circuit control thermal camera replaces electricity in the infrared lamp with associative mode
Shi Jinhang is shot, and it is the eyeball image under eye control pattern that can so realize the 1st two field picture, and the 2nd frame is under iris recognition pattern
Eyeball image, the 3rd frame is the eyeball image ... ... under eye control pattern, while realize eye control and iris recognition mould
Formula, such as frequency acquisition are 60fps, then the eyeball image under odd-numbered frame is a kind of acquisition of mode of operation, the eyeball under even frame
Image is what another mode of operation was obtained.Such a situation, because the switch speed of two kinds of mode of operations is exceedingly fast, so human eye
Fundamental sensation is less than the switching for working in the infrared lamp under two kinds of mode of operations.
In addition, the Eye-controlling focus device may be mounted in a virtual reality glasses, as shown in figure 4, the virtual reality
Glasses include frame 401, and the frame includes camera lens 402 corresponding with eyes of user, annular infrared light board 400
Internal diameter is more than the diameter of camera lens 402, and annular infrared light board 400 is set on camera lens 402.
Embodiment 2
The utility model embodiment 2 provides a kind of any of head-mounted display apparatus, including embodiment 1 sight and chased after
Track device, in addition to head-mounted display apparatus body, the body include including lens group on bogey, the bogey and aobvious
Display screen, lens group includes left eye camera lens or right eye camera lens.
Lens group can be that convex lens can also be concavees lens, or protective spectacles, the need for adapting to different user, show
Display screen is used for display image.
Eye-controlling focus device in embodiment 1, for recognizing the identity of user and determining the direction of visual lines of user, the sight
Thermal camera, infrared lamp group and control circuit in follow-up mechanism may be mounted on an annular infrared light board, in order to
The design space of above-mentioned head-mounted display apparatus is saved, the annular infrared light board can be designed as internal diameter slightly larger than above-mentioned camera lens
The diameter of left eye camera lens or right eye camera lens in group.
A kind of preferably embodiment, has two annular infrared light boards, is respectively sleeved at above-mentioned left eye camera lens and right eye
On camera lens, 8 infrared lamps and a thermal camera each have been uniformly arranged on annular infrared light board, and by same
Control circuit is controlled.
It is described in detail with reference to one embodiment：
In a kind of virtual reality glasses, the Eye-controlling focus device provided in embodiment 1 is mounted with, and the Eye-controlling focus is filled
Put including 8 infrared lamps, and be connected with control circuit, this 8 infrared lamps are arranged on annular infrared light board, control circuit
It is also disposed on annular infrared light board, annular infrared light board is set on a circular eyepiece of virtual reality glasses,
An annular infrared light board equipped with 8 infrared lamps is arranged on another circular eyepiece, 8 infrared lamps are also by above-mentioned control
Circuit processed is controlled.
User wears the virtual reality glasses, and the switch of the virtual reality glasses can be opened first, then Eye-controlling focus is filled
Put and start to carry out identity validation to the user, in the process, each infrared lamp reaches effective operating brightness in two eyepieces,
Infrared camera scan is sent the image in the processor in control circuit to user eyeball image, pre- in processor
If image intensity value during iris recognition, when processor receives eyeball image, obtain the gray value of eyeball image, and with it is pre-
If above-mentioned image intensity value be compared, according to comparison result adjust infrared lamp brightness.When brightness is suitable, taken the photograph infrared
The eyeball image that camera is obtained is handled, and the eye feature value of the user is obtained, with the user characteristics of the legal identity prestored
Value is compared.
If judging the user for legitimate user, remaining 7 lamp is controlled all to light, while adjusting the brightness of 8 lamps
To OK range, by thermal camera user in real eyeball image, pass through above-mentioned infrared light of 8 lamps through corneal reflection
The position of spot and the pupil center location of user determine the direction of visual lines of user.
Above-mentioned is only a kind of application environment of Eye-controlling focus device, and its application environment is not limited to a kind of virtual reality
Glasses, can also be applied to augmented reality equipment and other headset equipments, such as user withdrawn the money in autonomous cash dispenser or
During other business of person, it can be manipulated by a kind of headset equipment comprising Eye-controlling focus device.
Use above environment is only section Example, and the Eye-controlling focus device mentioned in every Application Example 1 is set
It is standby, within this protection domain.
Understood based on above-mentioned analysis, compared with Eye-controlling focus device of the prior art, its infrared lamp group includes at least two
The individual infrared lamp for being arranged at diverse location, control circuit can when Eye-controlling focus device works in iris recognition and Eye-controlling focus
Control the infrared lamp number for reaching effective operating brightness in the red infrared lamp group respectively so that Eye-controlling focus device this two
Under kind of working condition, reach that the number of the infrared lamp of effective operating brightness is different, so that Eye-controlling focus device can be
When working in iris recognition and Eye-controlling focus, control to reach the number of the infrared lamp of effective operating brightness in infrared lamp group respectively,
So that the number that Eye-controlling focus device works in the infrared lamp of effective operating brightness during iris recognition is few so that thermal camera is obtained
There is no more infrared light spot on the user eyeball image obtained, so as to recognize user by obtaining whole eye features
Identity.And cause Eye-controlling focus device work in the infrared lamp of effective operating brightness during Eye-controlling focus number it is more so that
The infrared light spot on user eyeball image that thermal camera is obtained is more, so that the more accurate sight side for obtaining user
To.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or
It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter
Change description, rather than indicate or imply signified device or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for area
Divide description, and it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or be integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected to, can is the connection of two element internals.For the ordinary skill in the art, it can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Finally it should be noted that：Embodiment described above, embodiment only of the present utility model, to illustrate this
The technical scheme of utility model, rather than its limitations, protection domain of the present utility model are not limited thereto, although with reference to foregoing
The utility model is described in detail embodiment, it will be understood by those within the art that：It is any to be familiar with this skill
The technical staff in art field is in the technical scope that the utility model is disclosed, and it still can be to the skill described in previous embodiment
Art scheme is modified or can readily occurred in change, or carries out equivalent substitution to which part technical characteristic；And these modifications,
Change is replaced, and the essence of appropriate technical solution is departed from the spirit and model of the utility model embodiment technical scheme
Enclose.It should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model described should be wanted with right
The protection domain asked is defined.
Claims (10)
1. a kind of Eye-controlling focus device, it is characterised in that including thermal camera, infrared lamp group and control circuit, the control
Circuit is electrically connected with the infrared lamp group, and the infrared lamp group includes at least two infrared lamps for being arranged at diverse location；
The thermal camera, the eyeball image for gathering the user when the infrared lamp is lighted；
The control circuit, it is described for being controlled respectively when the Eye-controlling focus device works in iris recognition and Eye-controlling focus
The infrared lamp number of effective operating brightness is reached in infrared lamp group, it is bright not less than threshold value that effective operating brightness refers to the brightness
Degree.
2. Eye-controlling focus device according to claim 1, it is characterised in that the infrared lamp group includes being arranged at first
The infrared lamp group put and the infrared lamp group for being arranged at the second place, send during the infrared lamp group work for being arranged at the first position
The eyeball of infrared light not direct irradiation user, the infrared light sent during the infrared lamp group work for being arranged at the second place directly shines
Penetrate the eyeball of user；
The control circuit, the red of first position is placed in for working in iris recognition time control in the Eye-controlling focus device and setting up
Outer lamp group reaches effective operating brightness, works in Eye-controlling focus time control in the Eye-controlling focus device and sets up and is placed in the second place
Infrared lamp group reaches effective operating brightness.
3. Eye-controlling focus device according to claim 1, it is characterised in that the thermal camera and the control circuit
Electrical connection；
The thermal camera, is additionally operable to be formed on thermal camera described in the eyeball image and the Infrared irradiation
Iris image is transferred to the control circuit；
The control circuit, is additionally operable to adjust the brightness for the infrared lamp for reaching effective operating brightness so that the eyeball image
Gray value reach default gray value.
4. Eye-controlling focus device according to claim 1, it is characterised in that the infrared lamp group include the first infrared lamp and
Second infrared lamp, the quantity of first infrared lamp is less than the quantity of second infrared lamp；
The control circuit, for when the Eye-controlling focus device works in iris recognition, controlling first infrared lamp to reach
To effective operating brightness, the brightness of second infrared lamp is controlled to be less than the threshold luminance；And, for being chased after in the sight
When track device works in Eye-controlling focus, the brightness of first infrared lamp is controlled to be less than the threshold luminance, control described second
Infrared lamp reaches effective operating brightness.
5. Eye-controlling focus device according to claim 1, it is characterised in that the control circuit and each described infrared lamp
It is electrically connected；
The control circuit, for when the Eye-controlling focus device works in iris recognition, control first to set the institute of quantity
State infrared lamp and reach effective operating brightness；And, for when the Eye-controlling focus device works in Eye-controlling focus, controlling second
The infrared lamp of setting quantity reaches effective operating brightness；The first setting quantity is less than the described second setting quantity.
6. Eye-controlling focus device according to claim 2, it is characterised in that the infrared lamp group of the first position is included extremely
Few two infrared lamps, the infrared lamp group of the second place includes at least three infrared lamp；
The emission wavelength of each infrared lamp in the infrared lamp group of the first position is less than the infrared lamp group of the second place
In infrared lamp emission wavelength.
7. Eye-controlling focus device according to claim 6, it is characterised in that in the infrared lamp group of the first position at least
The emission wavelength of two infrared lamps is different.
8. Eye-controlling focus device according to claim 7, it is characterised in that the thermal camera includes the first infrared photography
Machine and the second thermal camera, the control circuit are additionally operable to when Eye-controlling focus device works in iris recognition, control first
Thermal camera works；When Eye-controlling focus device works in Eye-controlling focus, control the second thermal camera work.
9. the Eye-controlling focus device according to its claim 1, it is characterised in that the control circuit is additionally operable to described red
When outer lamp reaches effective operating brightness, the thermal camera is controlled to start working.
10. a kind of head-mounted display apparatus, it is characterised in that including any described Eye-controlling focus device of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338755.1U CN206594689U (en) | 2017-03-31 | 2017-03-31 | A kind of Eye-controlling focus device and head-mounted display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720338755.1U CN206594689U (en) | 2017-03-31 | 2017-03-31 | A kind of Eye-controlling focus device and head-mounted display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206594689U true CN206594689U (en) | 2017-10-27 |
Family
ID=60123102
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|---|---|---|---|
| CN201720338755.1U Withdrawn - After Issue CN206594689U (en) | 2017-03-31 | 2017-03-31 | A kind of Eye-controlling focus device and head-mounted display apparatus |
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| CN (1) | CN206594689U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106874895A (en) * | 2017-03-31 | 2017-06-20 | 北京七鑫易维信息技术有限公司 | A kind of Eye-controlling focus device and head-mounted display apparatus |
| CN108811249A (en) * | 2018-06-29 | 2018-11-13 | 深圳微步信息股份有限公司 | A kind of iris illumination control circuit and mobile terminal |
| CN110062168A (en) * | 2019-05-05 | 2019-07-26 | 北京七鑫易维信息技术有限公司 | Shooting parameter adjustment method, device, equipment and the medium of eye movement tracing equipment |
| JP2023065150A (en) * | 2021-10-27 | 2023-05-12 | 富士通クライアントコンピューティング株式会社 | Information processing device and information processing program |
-
2017
- 2017-03-31 CN CN201720338755.1U patent/CN206594689U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106874895A (en) * | 2017-03-31 | 2017-06-20 | 北京七鑫易维信息技术有限公司 | A kind of Eye-controlling focus device and head-mounted display apparatus |
| WO2018177311A1 (en) * | 2017-03-31 | 2018-10-04 | 北京七鑫易维信息技术有限公司 | Line-of-sight tracking device and head-mounted display device |
| US11143869B2 (en) | 2017-03-31 | 2021-10-12 | Beijing 7Invensun Technology Co., Ltd. | Eye tracking device and head-mounted display device |
| CN108811249A (en) * | 2018-06-29 | 2018-11-13 | 深圳微步信息股份有限公司 | A kind of iris illumination control circuit and mobile terminal |
| CN108811249B (en) * | 2018-06-29 | 2024-04-23 | 深圳微步信息股份有限公司 | Iris illumination control circuit and mobile terminal |
| CN110062168A (en) * | 2019-05-05 | 2019-07-26 | 北京七鑫易维信息技术有限公司 | Shooting parameter adjustment method, device, equipment and the medium of eye movement tracing equipment |
| JP2023065150A (en) * | 2021-10-27 | 2023-05-12 | 富士通クライアントコンピューティング株式会社 | Information processing device and information processing program |
| JP7319561B2 (en) | 2021-10-27 | 2023-08-02 | 富士通クライアントコンピューティング株式会社 | Information processing device and information processing program |
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| GR01 | Patent grant | ||
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Granted publication date: 20171027 Effective date of abandoning: 20190205 |