CN210330543U

CN210330543U - VR visual function inspection device

Info

Publication number: CN210330543U
Application number: CN201920196738.8U
Authority: CN
Inventors: 葛文超; 张晓利; 戴淑真
Original assignee: Zhengzhou Chengyoucheng Electronic Technology Co ltd
Current assignee: Zhengzhou Chengyoucheng Electronic Technology Co ltd
Priority date: 2019-02-14
Filing date: 2019-02-14
Publication date: 2020-04-17
Anticipated expiration: 2029-02-14

Abstract

The utility model provides a VR visual function inspection device, including VR glasses and mobile terminal, the VR glasses include VR glasses body and the portion of wearing, VR glasses body includes the left and right display in the place ahead, left and right lens to and be located the left and right eyepiece that the rear is close to the person's eye of being examined, be close to the position of people's eye side above the eyepiece and install left and right surveillance camera, still include controller, driver etc. in the shell of VR glasses body. The mobile terminal selects the inspection items and sends the images to the VR glasses for display, and the examinee can obtain the self-inspection result by adjusting the VR glasses and carrying out final calculation by the mobile terminal. The utility model provides a handy visual function inspection device, the volume is less, and convenient to use need not artificial change drawing of professional, covers examinee's eyes, can be convenient detect examinee's eye function through the simple operation of examinee.

Description

VR visual function inspection device

Technical Field

The utility model relates to an ophthalmology inspection field, in particular to utilize VR technique to carry out device of visual function inspection.

Background

The eye is the most important organ in human sense, about 80% of knowledge and memory in the brain is acquired through the eye, which is the most important way for spatial orientation, emotional communication and learning, and thus, timely examination of the eye function is essential.

The visual functions known to people mainly include strabismus, amblyopia, stereoscopy, fusion functions, and the like. Among them, the normal life of people is greatly influenced by the vision problems such as strabismus and amblyopia. Traditional visual function tests can be performed by means of co-viewer testing, triple prism plus masking testing, corneal reflection methods, and the like. However, the existing visual function inspection devices have different kinds of defects: 1, each instrument has a complex operation and use method, and professionals are required to evaluate the eye performance of a patient, and if the professionals are lacked, the patient cannot use the instrument to measure the eye performance by himself; 2, the instrument is bigger, it is inconvenient to carry, 3, some have higher requirements for measuring distance, some inspection methods are influenced by ambient light intensity greatly, etc.

Along with the development of virtual reality VR technique, the VR technique has obtained extensive application in medical field, and VR glasses convenient to carry, simple to use, the display device function of VR glasses is more powerful, requires lowly to ambient light, and the VR device is expected to become new visual function check out test set.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome current vision function check-out set and carry inconvenience, the operation is complicated, the higher defect of condition requirement, through emerging virtual reality technique, provide a VR vision function inspection device.

The utility model discloses a following technical scheme realizes:

an embodiment of the utility model provides a VR visual function inspection device, which comprises VR glasses 1 and a mobile terminal 2, wherein the VR glasses comprise a VR glasses body 3 and a wearing part 4, and the wearing part is fixedly connected with the glasses body and used for fixing the VR visual function inspection device on the head of a person to be inspected; the VR glasses body comprises a left display 5 and a right display 5 at the front, a left lens 6 and a right lens 6 at the middle, and a left ocular lens 7 and a right ocular lens 7 at the rear and close to the eyes of a person to be detected, a left monitoring camera 8 and a right monitoring camera 8 are arranged above the ocular lens and close to the eyes of a person and are used for shooting eyeball motion images of the person to be examined, a controller 9 and a driver 10 are further arranged in the shell of the VR glasses body, a focal length adjusting knob 11 is arranged outside the shell of the VR glasses and is electrically connected with the driver, the distance between the lens and the display is adjusted, the VR glasses are in communication connection with the mobile terminal, the mobile terminal comprises a memory 12, a processor 13, a sending port 14 and a receiving port 15, a display screen 17 is arranged on the surface of the mobile terminal, and a visual function check item selection icon 16 is included on the display screen interface and used for selecting different visual function check items from the memory.

Different visual function checking items are stored in a memory of the mobile terminal, and the visual function checking items can be selected by clicking a visual function item selection icon. For each inspection item, the memory stores the left and right eye images corresponding to the item, and the image information can be a conventional picture image for visual inspection; such as a corresponding picture of a fusion view, a simultaneous view, a stereoscopic view, etc.

The sending port is used for sending image information corresponding to the visual function checking item to a controller of the VR glasses;

the controller of the VR glasses transmits the image information to the left display and the right display in a mode of separating two eyes respectively, and the image information is presented to each corresponding eye, and the controller can alternately display screens of the left display and the right display;

the driver of VR glasses is connected with the adjust knob of VR glasses, can adjust the position of left and right lens through focus adjust knob control driver, until adjusting to the suitable focus of user. And the VR glasses send the displacement information of the lenses in the visual axis direction to the mobile terminal. The eyes of the examinees usually have different focal lengths, when normal people watch objects, light rays emitted into the eyes of the examinees from the objects form inverted real images on the retinas, however, when people with visual disorders watch the objects, the light rays emitted into the eyes of the examinees cannot form images on the retinas due to the focal lengths, and therefore, the focal lengths of the users can be changed by adjusting the positions of the lenses on the VR visual function inspection device, and clear imaging is achieved.

The display of VR glasses is used for showing the image information of inspection item, and the content that shows on the display is observed through the eyepiece to the person of examining, when the person of examining vision has the obstacle, can also slide the screen of display with the hand, moves the image position, makes it satisfy certain requirement. For example, when the VR visual function testing apparatus is used to test the simultaneous perception function of a subject, the images displayed on the displays are the lion and the cage on the conventional simultaneous perception picture, if the images on the two displays do not coincide with each other, the subject can slide the image information of the displays by hand until the lion enters the cage to complete fusion, and the processor records the displacement of the image in the plane perpendicular to the visual axis relative to the initial image.

The monitoring camera is used for shooting eyeball motion images of a detected person when screens of the left display and the right display are alternately displayed, the motion images are sent to the mobile terminal, a receiving port of the mobile terminal receives the image information and transmits the image information to the memory for storage, the memory in the mobile terminal sends the images to the processor for analysis, and the processor can judge whether the detected person has oblique vision. The method comprises the steps that one eye of a detected person is fixed to watch a target, the display corresponding to the other eye does not display an image, the eyeball movement of the detected person is observed, if the eyeball of the detected person is inclined, and when the display of the eye displays the image again, the eyeball rotates to watch the target, and the detected person has inclination.

And the processor of the mobile terminal is used for acquiring the eyeball moving images shot by the monitoring camera and the image information of the display from the memory, calculating the displacement information of the lens in the visual axis direction and the horizontal and vertical displacement information of the display images of the left and right displays on a plane vertical to the visual axis, and calculating the squint degree of the detected person according to the displacement information in the three directions.

The display screen of the mobile terminal is used for displaying the inspection result of the visual function item;

furthermore, the mobile terminal can also send the calculation result to the VR glasses through the sending port, and the controller of the VR glasses receives the calculation result of the processor and displays the result on the display. The examinee can know the own visual function examination result by browsing the display. The utility model discloses a VR glasses still contain the speaker, acquires the calculated result of treater at the controller after, control speaker broadcast treatment result, even there is visual disturbance by the person examined, also can know the inspection result of oneself through the speaker.

Another embodiment of the present invention provides a connection structure diagram of a VR visual function inspection device, wherein a focus adjustment knob is connected to a driver, the position of a lens in a VR device is adjusted in a visual axis direction, the driver transmits a displacement of the lens to a memory of a mobile terminal for storage, the driver selects one item from a plurality of items stored in the memory for inspection, a monitoring camera stores an eyeball moving image of a photographed examinee to the memory, a controller displays image information corresponding to the item stored in the memory on a display, the examinee can adjust a display image by sliding a screen of the display with a hand until the adjusted image meets a requirement, the memory records the displacement of the image position relative to an initial position, a processor is connected to the memory, and acquires the displacement of the image, the displacement of the lens, and the eyeball moving image from the memory, according to the information, whether the detected person has the problems of strabismus, amblyopia and the like can be calculated, and the controller controls the display of the VR glasses and the display screen of the mobile terminal to display the information of the detection result.

The utility model adopts the above technical scheme following beneficial effect has:

the utility model provides a handy visual function inspection device, for instruments such as the synoptophore among the prior art, the volume is less, and is simple to use, need not artificial change drawing of professional, cover examinee's eyes, shows different pictures through the display in turn to displacement information that just can obtain lens and display image through examinee's simple operation, calculate the examination result that can be convenient obtains the examinee through the treater.

Drawings

FIG. 1 is the utility model discloses VR vision function inspection device

FIG. 2 is the utility model discloses VR vision function inspection device's connection structure chart

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Fig. 1 shows the VR visual function inspection device of the present invention, which comprises VR glasses 1 and a mobile terminal 2, wherein the VR glasses comprise VR glasses bodies 3 and wearing parts 4, and the wearing parts are fixedly connected to the glasses bodies for fixing the VR visual function inspection device on the head of a subject; the VR glasses body comprises a left display 5 and a right display 5 at the front, a left lens 6 and a right lens 6 at the middle, and a left ocular lens 7 and a right ocular lens 7 at the rear and close to the eyes of a person to be detected, a left monitoring camera 8 and a right monitoring camera 8 are arranged above the ocular lens and close to the eyes of a person and are used for shooting eyeball motion images of the person to be examined, a controller 9 and a driver 10 are further arranged in the shell of the VR glasses body, a focal length adjusting knob 11 is arranged outside the shell of the VR glasses and is electrically connected with the driver, the distance between the lens and the display is adjusted, the VR glasses are in communication connection with the mobile terminal, the mobile terminal comprises a memory 12, a processor 13, a sending port 14 and a receiving port 15, a display screen 17 is arranged on the surface of the mobile terminal, and a visual function check item selection icon 16 is included on the display screen interface and used for selecting different visual function check items from the memory.

The sending port is used for sending image information corresponding to the visual function checking item to a controller of the VR glasses; the mobile terminal and the VR glasses can be in wired connection or wireless connection;

The display of VR glasses is used for showing the image information of inspection item, and the content that shows on the display is observed through the eyepiece to the person of examining, when the person of examining vision has the obstacle, can also slide the screen of display with the hand, moves the image position, makes it satisfy certain requirement. For example, when the VR visual function test apparatus is used to test the simultaneous perception function of a subject, the images displayed on the displays are a lion and a cage on a conventional simultaneous perception picture, and if the images on the two displays do not coincide with each other, the subject can slide the image information of the displays by hand until the lion enters the cage to complete fusion, and the memory records the displacement of the image in the plane perpendicular to the visual axis relative to the initial image.

FIG. 2 shows a connection structure diagram of the VR vision function inspection device of the present invention, wherein one item is selected from a plurality of items stored in a memory for inspection, a controller displays image information corresponding to the item stored in the memory on a display, a focus adjustment knob is connected to a driver for adjusting the position of a lens in the VR device in the visual axis direction, the driver sends the displacement of the lens movement to the memory of a mobile terminal for storage, a subject can adjust a display screen by sliding the screen of the display with a hand until the adjusted screen meets the requirement, the memory records the displacement of the image position relative to the initial position, a monitoring camera stores the eyeball movement image of the subject to be photographed in the memory, a processor is connected to the memory, and the displacement of the image, the displacement of the lens and the eyeball movement image are obtained from the memory, according to the information, whether the detected person has the problems of strabismus, amblyopia and the like can be calculated, and the controller controls the display of the VR glasses and the display screen of the mobile terminal to display the information of the detection result.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A VR visual function checking device is characterized by comprising VR glasses (1) and a mobile terminal (2), wherein the VR glasses comprise a VR glasses body (3) and a wearing part (4), and the wearing part is fixedly connected with the glasses body and used for fixing the VR visual function checking device on the head of a person to be checked; the VR glasses body comprises a left display (5) and a right display (5) in front, a left lens (6) in the middle, a left eyepiece (7) and a right eyepiece (7) which are positioned at the back and close to the eyes of a person to be detected, a left monitoring camera and a right monitoring camera (8) are arranged at the positions above the eyepieces and close to the eyes of the person to be detected and are used for shooting eyeball moving images of the person to be detected, a controller (9) and a driver (10) are further arranged in a shell of the VR glasses body, a focal length adjusting knob (11) is arranged on the outer side of the shell of the VR glasses, the adjusting knob is electrically connected with the driver and is used for adjusting the distance between the lenses and the display, the VR glasses are in communication connection with the mobile terminal, the mobile terminal comprises a memory (12), a processor (13), a sending port (14) and a receiving port (15), a display screen (17) is arranged on, for selecting different visual function inspection items from the memory.

2. The VR vision function inspection apparatus of claim 1, wherein different vision function inspection items are stored in a memory of the mobile terminal, and the selection of the vision function inspection item is performed by clicking a vision function item selection icon, and for each inspection item, images of left and right eyes corresponding to the item are stored in the memory, and the image information may be a conventional picture image for vision inspection.

3. The VR vision function inspection apparatus of claim 1, wherein the transmission port is configured to transmit image information corresponding to a vision function inspection item to a controller of VR glasses.

4. The VR vision function checking apparatus of claim 1, wherein the controller of the VR glasses transmits image information to the left and right displays in a binocular separated manner, respectively, to be presented to each corresponding eye, and the controller alternately displays screens of the left and right displays.

5. The VR vision function inspection device of claim 1, wherein the drivers of the VR glasses are connected to adjusting knobs of the VR glasses, the drivers are controlled by the focus adjusting knobs to adjust the positions of the left and right lenses until the proper focus of the user is achieved, and the VR glasses transmit the displacement information of the lenses in the visual axis direction to the mobile terminal.

6. The VR vision function inspection apparatus of claim 1, wherein the subject observes the contents displayed on the display through the eyepiece, and when there is an obstacle to the subject's vision, the subject can slide the screen of the display by hand to move the image position to meet a certain requirement.

7. The VR vision function inspection apparatus of claim 1, wherein the monitoring camera is configured to capture an eye movement image of the subject when screens of the left and right displays are alternately displayed.

8. The VR visual function inspection apparatus of claim 1, wherein the processor of the mobile terminal is configured to obtain from the memory eyeball moving images captured by the monitoring camera and image displacement information on the display of the VR glasses, determine whether or not there is a tilt of the subject, calculate displacement information of the lens in the visual axis direction and horizontal and vertical displacement information of the display images of the left and right displays on a plane perpendicular to the visual axis, and calculate the degree of tilt of the subject based on the displacement information in the three directions.

9. The VR vision function inspection apparatus of claim 1, wherein the display of the mobile terminal is configured to display the inspection result of the vision function item, and further to send the inspection result to the VR glasses through the sending port, and the controller of the VR glasses receives the inspection result from the processor, and displays the inspection result on the display and plays the inspection result with voice through the speaker.