CN109700428A - A kind of cornea contact electrode and working method of built-in eye gaze tracking system - Google Patents
A kind of cornea contact electrode and working method of built-in eye gaze tracking system Download PDFInfo
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- CN109700428A CN109700428A CN201910150034.1A CN201910150034A CN109700428A CN 109700428 A CN109700428 A CN 109700428A CN 201910150034 A CN201910150034 A CN 201910150034A CN 109700428 A CN109700428 A CN 109700428A
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- gaze tracking
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Abstract
The present invention provides the cornea contact electrodes and working method of a kind of built-in eye gaze tracking system, including contact lens；The contact lens and Corneal Contact are provided with recording electrode on one side；The recording electrode is visual electrophysiology cornea contact electrode；The contact lens is not provided with eye gaze tracking system with Corneal Contact on one side, captures eye image by transparent contact lens, perceives the movement of eyeball；While measuring cornea electric-physiology parameter, the movement of eyeball is perceived by eye gaze tracking system.Compared with prior art, the present invention can be while measuring cornea electric-physiology parameter, while perceiving eye movement.
Description
Technical field
The present invention relates to medical electronic field, in particular to a kind of cornea contact electrode of built-in eye gaze tracking system
And working method.
Background technique
The position that hard corneal contact lens electrode can more steadily fix electrode prevents from shifting, and can effectively prevent tear
Evaporation can be effectively protected cornea in prolonged electrophysiologic study to prevent cornea from drying occurs, reduce cornea
The generation of ulcer, thus improve the stability of detection, repeatability and and reduce detection bring wound, improve the precision of detection.
Visual evoked potential (VEP) is the bioelectricity that visual stimulus is generated in cerebral cortex, reacts visual information from view
Transmittance process of the film to cerebral cortex visual centre signal.VEP is a kind of objective visual function evaluation, thus can be used for it is clinical with
And the visual function identification of legal medical expert etc., but the objective functional premise checked referred herein is that have good fit feelings in subject
It is carried out under condition, can often encounter the bad subject of some cooperations in clinical practice, as subject's fixation is bad or not
Watching attentively, being absent minded etc. can all cause VEP abnormal, will cause the error result of malingering blindness, should correct immediately.It is examined to this kind of
The VEP of person is checked and judgement is comparatively more difficult.Especially seem especially heavy when being related to judicial expertise and malingering blindness is identified
It wants.And it anaesthetizes not deep animal and carries out the movement that can also generate eyeball when VEP inspection, therefore also influence whether experiment objective results
Interpretation.
Summary of the invention
The present invention provides a kind of cornea contact electrode of built-in eye gaze tracking system, have convenient in measurement cornea
While electric-physiology parameter, while the characteristics of perceive eye movement.
The present invention also provides a kind of cornea contact electrode working methods of built-in eye gaze tracking system, and having can
While measuring cornea electric-physiology parameter, while the characteristics of perceive eye movement.
A kind of cornea contact electrode of the built-in eye gaze tracking system provided according to the present invention, which is characterized in that packet
Include contact lens；The contact lens and Corneal Contact are provided with recording electrode on one side；The recording electrode is vision
Electro physiology cornea contact electrode；The contact lens is not provided with eye gaze tracking system with Corneal Contact on one side, leads to
It crosses transparent contact lens and captures eye image, perceive the movement of eyeball.
The recording electrode uses conductive fiber material；The conductive fiber material is carbon material, the silver-plated material of gilding
Material or other conductive and flexible materials nonirritant to ocular tissue.
The recording electrode uses ring electrode.
It is provided with through-hole on the contact lens, conducting wire, the end of conducting wire and ring shaped conductive fiber are provided in through-hole
Material, which connects, constitutes active electrode；Reference electrode and/or grounding electrode are stainless steel acicular texture.
The recording electrode is spun gold electrode.
The recording electrode and contact lens are binded using light curable glue.
The eye gaze tracking system includes the photodetector and multi-axial accelerometer for capturing eye image.
The eye gaze tracking system is arranged in ring electrode inner ring.
It is provided with antenna in the eye gaze tracking system, using wireless mode correspondence with foreign country.
The cornea contact electrode working method of a kind of built-in eye gaze tracking system provided according to the present invention, above-mentioned
It realizes on the basis of cornea contact electrode, while measuring cornea electric-physiology parameter, is perceived by eye gaze tracking system
The movement of eyeball.
The method also includes once perceiving eye movement, then alarming.
Compared with prior art, the present invention can be while measuring cornea electric-physiology parameter, while perceiving eye movement.
Detailed description of the invention
Fig. 1 is the contact electrode of a wherein embodiment of the invention and the schematic diagram of Corneal Contact cooperation.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Any feature disclosed in this specification (including abstract and attached drawing) unless specifically stated can be equivalent by other
Or the alternative features with similar purpose are replaced.That is, unless specifically stated, each feature is a series of equivalent or class
Like an example in feature.
As shown in Figure 1, a kind of cornea contact electrode that can measure pupil size simultaneously provided according to the present invention, including angle
Film contact lense；The contact lens and Corneal Contact are provided with recording electrode on one side；The recording electrode is raw for vision electricity
Manage cornea contact electrode；The contact lens is not provided with eye gaze tracking system with Corneal Contact on one side, by saturating
Bright contact lens captures eye image, perceives the movement of eyeball.
As a kind of embodiment of the invention, contact lens has two sides, and the one side with Corneal Contact is medial surface, on the contrary
Face is lateral surface.Medial surface is provided with recording electrode, the vision physiological parameter for subsidiary cornea.Lateral surface is provided with eye
Eyeball watches tracking system attentively, captures eye image by transparent contact lens, convenient in the same of measurement cornea electric-physiology parameter
When, while perceiving eye movement.
As one embodiment of the present invention, the recording electrode uses conductive fiber material；The conductive fiber material
Material is carbon material, gilding silver coating material or other conductive and flexible materials nonirritant to ocular tissue.
As one embodiment of the present invention, as shown in Figure 1, the recording electrode uses ring electrode.
As one embodiment of the present invention, as shown in Figure 1, through-hole is provided on the contact lens, in through-hole
It is provided with conducting wire, the end of conducting wire connects with ring shaped conductive fibrous material constitutes active electrode；Reference electrode and/or grounding electrode
For stainless steel acicular texture.
As one embodiment of the present invention, the recording electrode is spun gold electrode, as shown in Figure 1, for cyclic annular spun gold,
Diameter makes referring to previous Corneal electrode diameter (7-8mm).
As one embodiment of the present invention, the recording electrode and contact lens are binded using light curable glue.
When production, recording electrode and contact lens is binded using light curable glue, and irradiate 60min under ultraviolet light, accelerated solid
Change process, recording electrode bind stronger with cornea.
As one embodiment of the present invention, the eye gaze tracking system includes capturing the photoelectricity spy of eye image
Survey device and multi-axial accelerometer.Working principle are as follows: built-in photodetector and multi-axial accelerometer are obtained and sensed on two eyeballs
The space angle that the axial movement record and eyes of device are axially formed, the movement of perception eyeball is realized by algorithm.
As an embodiment of the present invention, eye gaze tracking system includes: that 1. triaxial accelerometers and a photoelectricity are visited
Survey device: the movement of detection pupil or eyes and/or position and capture eye image are (when can perceive the movement or unit of eyeball
Interior picture position variation is also used as variation of the rear camera for detection image, mode or contrast to track
Eye movement) or comparison tracking eye movement；2. a signal processor: being configured to receive the signal from sensor, hold
Row Digital Signal Processing, and one or more signals are exported to external system controller.Eye gaze tracking system is set with outside
Standby wireless interface, external actuator receive the standby signal that signal processor issues in eye gaze tracking system；3.
One storage card: for storing oculomotor record in a period of time；4. a power supply: being supplied for supplying working sensor
Electricity.
As one embodiment of the present invention, as shown in Figure 1, the eye gaze tracking system is arranged in ring electrode
Inner ring.
As one embodiment of the present invention, it is provided with antenna in the eye gaze tracking system, using wireless parties
Formula correspondence with foreign country.
The cornea contact electrode working method of a kind of built-in eye gaze tracking system provided according to the present invention, above-mentioned
It realizes on the basis of cornea contact electrode, while measuring cornea electric-physiology parameter, is perceived by eye gaze tracking system
The movement of eyeball.
The method also includes once perceiving eye movement, then alarming.As an embodiment of the present invention,
When there is eye movement, fixation makes a sound alarm when bad (eye movement occur causes result impacted).
Therefore, technical solution of the present invention can perceive oculomotor eye gaze tracking system contact lens electricity simultaneously
Pole, by analysis, display equipment is presented to the user the data of sensor or doctor.Simultaneously occur eyeball fixes it is bad when can
Audible alarm is carried out, the state of the doctor timely correction examiner of inspection is reminded.Clinically Whole-Process Company During Labor inspection always can be liberated
The operator looked into, while unreliable inspection result and alarm are corrected, reduce the trouble of quadratic search.
Claims (10)
1. a kind of cornea contact electrode of built-in eye gaze tracking system, which is characterized in that including contact lens；The angle
Film contact lense and Corneal Contact are provided with recording electrode on one side；The recording electrode is visual electrophysiology cornea contact electrode；
The contact lens is not provided with eye gaze tracking system with Corneal Contact on one side, is caught by transparent contact lens
Eye image is caught, the movement of eyeball is perceived.
2. cornea contact electrode according to claim 1, which is characterized in that the recording electrode uses conductive fiber material
Material；The conductive fiber material is carbon material, gilding silver coating material or other are conductive and to nonirritant soft of ocular tissue
Soft material.
3. cornea contact electrode according to claim 1, which is characterized in that the recording electrode uses ring electrode.
4. cornea contact electrode according to claim 1, which is characterized in that it is provided with through-hole on the contact lens,
Conducting wire is provided in through-hole, the end of conducting wire connects with ring shaped conductive fibrous material constitutes active electrode；It reference electrode and/or connects
Ground electrode is stainless steel acicular texture.
5. cornea contact electrode according to claim 1, which is characterized in that the recording electrode is spun gold electrode.
6. cornea contact electrode according to claim 1, which is characterized in that the recording electrode and contact lens use
Light curable glue bonding.
7. cornea contact electrode according to claim 1, which is characterized in that the eye gaze tracking system includes capturing
The photodetector and multi-axial accelerometer of eye image.
8. cornea contact electrode according to claim 3, which is characterized in that the eye gaze tracking system is arranged in ring
Shape electrode inner ring.
9. a kind of cornea contact electrode working method of built-in eye gaze tracking system, described in one of claims 1 to 8
It realizes on the basis of cornea contact electrode, while measuring cornea electric-physiology parameter, is perceived by eye gaze tracking system
The movement of eyeball.
10. cornea contact electrode working method according to claim 9, the method also includes, once perceive eyeball
Movement, then alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910150034.1A CN109700428A (en) | 2019-02-28 | 2019-02-28 | A kind of cornea contact electrode and working method of built-in eye gaze tracking system |
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|---|---|---|---|
| CN201910150034.1A CN109700428A (en) | 2019-02-28 | 2019-02-28 | A kind of cornea contact electrode and working method of built-in eye gaze tracking system |
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