CN111493812A

CN111493812A - One-stop electronic vision inspection instrument and inspection method

Info

Publication number: CN111493812A
Application number: CN202010332043.5A
Authority: CN
Inventors: 王孟庠
Original assignee: Hangzhou Eyescare Technology Co ltd
Current assignee: Sichuan Fengyi Engineering Project Management Consulting Co.,Ltd.
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-08-07
Anticipated expiration: 2040-04-24
Also published as: CN111493812B

Abstract

The invention relates to a one-stop electronic vision inspection instrument and an inspection method, which are used for eye vision function inspection. The inspection tester comprises a shell, a controller, a display and an ocular, wherein the ocular is a group of imaging convex lens ocular fixed on the front surface of the shell; the display is used for displaying the fixation objects transmitted by the controller for visual inspection, and the distance between the central points of the two fixation objects is unchanged; the display is movably arranged on the optical axis of the ocular and moves along the optical axis. All people with different pupil distances can be guaranteed to be suitable for the fixation on the display. The inspection method comprises the steps that the controller transmits content data of a fixation object for inspection to the display, the eyes of examinees with different pupil distances are always on the fixation object, and the display adjusts the distance between the display and an eyepiece through the translation device to simulate the distance sense; the examinee obtains the visual impression feedback of the examinee through the rocker selection, so that the visual quality test of the examinee is completed, and the visual quality tests corresponding to different observers are different.

Description

One-stop electronic vision inspection instrument and inspection method

Technical Field

The invention relates to a one-stop electronic vision inspection instrument and an inspection method, which are used for eye vision function inspection.

Background

The Chinese has 14 hundred million population, the myopia population is nearly 7 million, besides myopia, many eye vision problems such as amblyopia, astigmatism, strabismus and the like exist, because the visual medicine only appears for over one hundred years, and Chinese is introduced later, about 20 years, the vision test is often misdiagnosed, and especially the vision problem of learning disability can be misdiagnosed in the young and the young; undetected visual abnormalities often hinder reading, movement, and technical ability during the growth of a child. In addition, visual testing also plays an important role in professional education guides.

The existing vision testing instrument has strong specialty, can only realize one person for one machine for testing, and cannot realize multiple purposes of one machine, so that a plurality of testing devices are often required to be purchased to complete series of tests, the cost is greatly increased, and the operation is also inconvenient.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a one-stop electronic vision inspection instrument and an inspection method.

The technical scheme adopted by the invention is as follows:

a one-stop electronic vision inspection instrument comprises a shell which is placed on a desktop and used for configuring internal and external devices, and is characterized by also comprising a controller, a display and an ocular, wherein the ocular is a group of imaging convex lenses fixed on the front surface of the shell; the display is used for displaying the fixation objects transmitted by the controller for visual inspection, and the distance between the central points of the two fixation objects is unchanged; the center of the display is movably arranged on the optical axis of the eyepiece and moves along the optical axis. The visual inspection fixation object is displayed through the built-in display, so that the inspection space is greatly reduced, and the observation of the test content is not interfered during inspection; and because the distance between the central points of the two gazing objects is not changed, the positions of the gazing objects on the display do not need to be adjusted, the difficulty of displaying the positions of the tested gazing objects is greatly reduced, the display precision is improved, and the test accuracy is ensured.

Preferably, the degree of the ocular is constant, and the focus is positioned on one side of the ocular; the focuses of the two eyepieces face outwards, the distance between the two focuses is constant, and the optical axis of the examinee is located between the two eyepieces.

Preferably, the ocular power is +5.00D, and the distance between two focuses is 95 mm. All people with different pupillary distances are guaranteed to be able to adapt to the gaze on the display.

Preferably, the distance between the eyepiece and the display reaches the focal distance between an infinite point and a close point, wherein:

a far point: the distance between the screen and the ocular is 20 cm, the distance between the ocular is +5.00D, and the requirement on the adjusting force is zero;

and (3) near point: the distance between the fluorescent screen and the ocular lens is 13.3 centimeters, the ocular lens is +5.00D, and the requirement of the adjusting force is + 2.50D. Near-far variation in the visual distance of the displayed content can be achieved by moving the display.

Preferably, the display uses a fusion principle to generate a stereoscopic sense perception on a plane and generate a visual function gaze similar to that of an external real space.

Preferably, the display further comprises a translation device, and the display is translated between the far point and the near point by the translation device in a change of 0.25D per grade. For adjusting the sense of distance.

Preferably, the device further comprises a rocker, the rocker is connected with the controller, the rocker is provided with a confirmation button, the controller receives a rocker instruction, and the target fixation object on the display is controlled through a remote rod. The single-person operation is realized without guidance.

Preferably, the multifunctional glasses further comprise a replaceable eyepiece, and the replaceable eyepiece is arranged in front of the eyepiece. Other eyepieces can be added to adapt to various people.

A one-stop electronic visual inspection method is based on the inspection instrument, and a controller of the inspection instrument executes instructions to execute the following operations: the controller transmits the content data of the gaze object for examination to the display, the eyes of the examinees with different pupil distances are always on the gaze object through the ocular, and the display adjusts the distance from the ocular through the translation device to simulate the sense of distance; the examinee obtains the visual impression feedback of the examinee through the rocker selection, so that the visual quality test of the examinee is completed, and the visual quality tests corresponding to different observers are different.

Preferably, the visual quality test comprises one or more of a binocular space positioning ability test, a far-point vertical eye position test, a far-point horizontal eye position test, a remote visual ability test, a depth perception stereo test, a color vision test, a near-point horizontal eye position test and a near-point fusion visual test.

Compared with the prior art, the product consists of at least one imaging lens, the eyepiece of the imaging lens is not a convex lens with a normal standard focus, and the one-stop electronic vision inspection instrument is utilized to realize various visual function inspections. The user is detected by the vision inspection equipment to perform near point and far point tests, and the user can change the visual perception, image fusion capability, vertical and horizontal slant positions, stereoscopic vision, color vision, horizontal peripheral vision, etc. of the left eye and the right eye by the content on the vision equipment. The visual function of the eyes is tested and tested repeatedly to find out the visual quality of the user and to reduce the uneven force applied to the eyes of the user.

The product can be operated by a single person without the guidance of professionals, a novel balance system is integrated in the instrument, and the balance system is suitable for people with different interpupillary distances and used for eye visual function examination so as to check symptoms and defect/defect data in extensive examination.

Drawings

Fig. 1 is a schematic view of a conventional eyepiece.

Fig. 2 is an imaging schematic diagram of the display and the eyepiece of the present embodiment.

Fig. 3 is a schematic structural diagram of the present embodiment.

Fig. 4 is a front view of the present embodiment.

Fig. 5 is a left side view of fig. 4.

Fig. 6 is a top view of fig. 4.

Fig. 7 is a rear view of fig. 4.

Fig. 8 is a partial cross-sectional view of the display and eyepiece of this embodiment.

Fig. 9 is a schematic structural diagram of a controller according to the present embodiment.

Fig. 10 is an inspection interface of the binocular spatial locality testing of the present embodiment.

Fig. 11 is an inspection interface of the remote vertical eye position test of the present embodiment.

Fig. 12 is an inspection interface of the remote horizontal eye position test of the present embodiment.

Fig. 13 is an inspection interface of the distance vision ability test of the present embodiment.

Fig. 14 is a check interface of the depth perception test according to the present embodiment.

Fig. 15 is an inspection interface of the color vision test of the present embodiment.

Fig. 16 is an inspection interface of the near-point horizontal eye position test of the present embodiment.

Fig. 17 is an inspection interface of the near-point fusion vision test according to the embodiment.

Reference numbers in the figures: the device comprises a shell 1, a handle 2, a switch 3, an eyepiece 4, a loudspeaker 5, a rocker 6 (a confirmation button 61), a power supply slot 7, a controller 8 (a processor module 81, a touch control panel 82, a memory module 83, a power supply management module 84, a video decoding module 85 and a wireless communication module 86), a warning lamp 9, a display 10, a heat dissipation port 11, a fingerprint identification 12, a power supply adapter 13, a back cushion 14, a translation device 15, a replaceable eyepiece 16, a distance A between the central points of two fixation objects and a distance B between focuses.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The design concept is as follows:

the product is mainly formed by using a display, a rocker is arranged at the front end of the shell, and the front edge of the upper shell is provided with two eyepieces for checking the visual holes; the display is embedded in the proper position of the shell. Thus, the symbol printed on the display is made to be viewed by the examiner through the eye lens from the inspection hole to complete the eye inspection operation, i.e., the inspection process is free from the interference of the external light source and is not limited by the distance. People vary in complexity with respect to motor, sensory and cognitive factors, spatial relationships, forms, colors, etc. The main purpose of this product is to provide a structural design of an eye vision inspection instrument, which employs a fully automatic inspection process, and the accuracy of the inspection result of the binocular vision function is improved, and the inspector can complete the inspection by himself without the need of pointing a symbol by other people.

The first embodiment is as follows:

as shown in fig. 1-9, a one-stop electronic vision inspection apparatus comprises a housing 1 placed on a desktop and used for configuring internal and external devices, a controller 8, a display 10 and an eyepiece 4, wherein the eyepiece 4 is a group of imaging convex lens eyepieces fixed on the front surface of the housing 1; the display 10 is used for displaying the fixation objects transmitted by the controller 8 for visual inspection, and the distance A between the center points of the two fixation objects is constant; the center of the display is movably arranged on the optical axis of the ocular lens and moves along the optical axis. The built-in display 10 displays the visual inspection fixation object, thereby greatly reducing the inspection space and avoiding the interference of the observation of the test content during the inspection; and because the distance A between the central points of the two gazing objects is not changed, the positions of the gazing objects on the display 10 do not need to be adjusted, the difficulty of displaying the positions of the tested gazing objects is greatly reduced, the display precision is improved, and the accuracy of the test is ensured.

The degree of the ocular 4 of the embodiment is unchanged, and the focus is positioned at one side of the ocular; the focuses of the two eyepieces face outwards, the distance B between the two focuses is constant, the optical axis of the examinee is located between the two eyepieces, further, the degree of the eyepieces is +5.00D, and the distance between the two focuses is 95 mm. All people with different pupillary distances are guaranteed to be able to adapt to the gaze on the display.

The eyepiece of this embodiment joins in marriage and reach the focus distance of infinity and near point with the fluorescent screen distance between the display, wherein:

The display of the embodiment adopts the fusion image principle to enable the plane to generate the three-dimensional space sensory perception and generate the visual function fixation objects which are the same as the external real space.

The embodiment further includes a translation device 15, the translation device 15 in the embodiment may be displaced in the form of a pneumatic rod, a threaded rod, or a rack in the prior art, and may achieve precise displacement of the display, and the display 10 is translated between the far point and the near point by the translation device 15 in a change of 0.25D per grade. For adjusting the sense of distance.

The embodiment further comprises a rocker 6, the rocker is connected with the controller, the rocker is provided with a confirmation button 61, the controller 6 receives a rocker instruction, and the target fixation object on the display is controlled through a remote rod. The single-person operation is realized without guidance.

The present embodiment further includes a replaceable eyepiece 16, which is positioned in front of the eyepiece. Other eyepieces can be added to adapt to various people.

More specifically, the product further comprises: the front edge of the closed space formed by the shell 1 and the handle 2 is provided with an ocular 4 and a loudspeaker 5, the lower part of the front edge is provided with a rocker 6, and the side body is provided with a switch 3, a power supply slot 7 and a heat dissipation port 11; its top is equipped with controller 8, warning light 9, and this embodiment still includes its outside: 4K color display 10, fingerprint identification 12, power adapter 13, back cushion 14.

The Display 10 in this embodiment may be a 4K color Display 10 such as L CD (L actual Crystal Display, liquid Crystal Display), O L ED (Organic L light-Emitting Diode), L ED (L light-Emitting Diode, light-Emitting Diode) and the like for displaying the Display content transmitted by the controller 8, the controller 8 may be provided with a processor module 81, and a touch control panel 82, a memory module 83, a power management module 84, a video decoding module 85 and a wireless communication module 86 connected thereto, the memory module 83 on the controller 8 may be used to store audio and video resources, detection resources and other resources that can be displayed on the 4K color Display 10, when the user uses the desktop virtual visual inspection apparatus, the user does not need to connect an external device, and only needs to operate the desktop virtual visual inspection apparatus to retrieve resources from the controller 8, which is convenient for the user to use, the wireless communication module 86 is further provided, and the desktop visual inspection apparatus may extend the virtual visual space through the cloud storage module 85 to connect the virtual visual inspection apparatus to the FPC video decoding module 85.

The warning light 9 in this embodiment flashes to indicate when each detection is completed. Besides reporting, the speaker 5 can send out instructions to answer the results during the detection, and upload the results to the cloud end to integrate the data and make the working of storing disk, so as to subtract the flow of artificial Japanese operation.

Various function control software including start detection, setting detection options, uploading data, adjusting volume and the like is set on the touch control panel 82 of the embodiment. The touch control panel 82 can be operated and controlled from the outside to the 4K color display 10, and various data can be uploaded to the cloud end during detection, so that the operation is flexible, and the user experience is improved. Such control software is not in itself what the product needs to protect, but explains the specific extended functionality of the touch control panel 82.

In order to ensure the stability of the table-type virtual reality vision tester during the eye movement, when the face of the person to be tested is close to the detection eyepiece 4 of the shell, the head of the person to be tested is close to the back cushion 14, and the two hands can hold the handle 2 and the rocker 6, so that the built-in program is triggered and started, the vision detection operation can be started, and the balance and the comfort level of the user are improved.

In this embodiment, the 4K color display improves the definition of the image formation. Back cushion 14 uses flexible material, can make the comfort level improve, easy cleanness do, the design of 2 ergonomic handles can let the user relaxed use table formula virtual reality vision tester, even use rocker 6 simultaneously, also can guarantee the comfort level and the stability of table formula virtual reality vision tester. The rocker 6 is shifted forwards, backwards, leftwards and rightwards to adjust the direction, a confirmation button 61 is designed on the rocker 6, a testee selects the shifting direction of the rocker 6 according to the direction of the observed symbol, if the shifting direction of the rocker 6 is correct, a built-in program selects a visual target in a downward indefinite lattice (or in 0.5 degree rows, or in 1.0 degree rows, or in 1.5 degree rows, which are unequal), otherwise, if the shifting direction is wrong, the visual target is selected in an upward indefinite lattice, when a plurality of lattices in the same degree row indicate the correctness, the visual target indicates that the correct degree is measured, and then the vision of the other eye is detected while being changed, and the operation process is the same as before.

In the embodiment, as shown in fig. 8, in order to adjust the distance between the display and the eyepiece and simulate the distance feeling, the translation device 15 is positioned above the inside of the housing and connected with the display 10 for translating the display 10; the power supply adapter 13 is arranged in the desk type virtual reality vision tester, when the switch 3 is turned on, the power supply adapter 13 simultaneously provides power supply for the controller 8 and the 4K color display 10, and the working principle is that alternating current input is converted into direct current output; even if the voltage fluctuates, the output of the power supply is a constant value, and the output of the power supply cannot fluctuate along with the voltage, so that the stable and effective performance of the power supply is ensured. The power supply slot 7 can be divided into a wall-inserting type or a desktop type according to the connection mode. The heat dissipation port 11 is favorable for dissipating heat of the temperature generated when the table-type virtual reality vision tester runs for the whole time, so that the temperature of the equipment in a closed space is prevented from continuously rising, and the service life of the table-type virtual reality vision tester is prolonged.

The product is designed for standardized and complete confidential testing. The target is enclosed in the housing 1 unit, so the subject cannot see or study the examination content in advance. The internal target ensures consistency with the subject's optical axis and is completely independent, easily sharing desk or table space with a desktop personal computer. When the power supply is not used, the power supply is turned off, and the product is powered by a standard 100-240V alternating current power supply socket.

Example two:

in an implementation-based one-stop electronic vision inspection method, a controller executes instructions to perform the following operations: the controller 8 transmits the content data of the gaze object for examination to the display 10, the eyes of the examinees with different pupil distances are always on the gaze object through the ocular 4, and the display adjusts the distance from the ocular through the translation device to simulate the distance sense; the examinee obtains the visual impression feedback of the examinee through the rocker selection, so that the visual quality test of the examinee is completed, and the visual quality tests corresponding to different observers are different.

The visual quality test comprises one or more of a binocular space positioning ability test, a far point vertical eye position test, a far point horizontal eye position test, a remote visual ability test, a depth perception three-dimensional test, a color vision test, a near point horizontal eye position test and a near point fusion visual test.

The specific test mode comprises the following steps:

as shown in fig. 10, the user can see both the float in the left-eye position and the float in the right-eye position. This test can detect binocular spatial localization capability. While a perception one test.

Whether the user can maintain vertical balance when viewing at a distance, as shown in fig. 11, indicates that one eye is tilted up or down if the array of graphics does not pass through the ball. Any confusion in identifying various geometric shapes. This is the far point vertical eye position test.

As shown in fig. 12, whether the user's vision is impeded by inward or outward deviation of the eyes. This target check far point lateral balance: the arrow for the left eye position should point between 6.5 and 11.5. The unstable condition of the arrow often indicates that the patients have poor collective ability and is a common association of perceptual deficit. (in the near-point test, the set bias may be more pronounced). This is the remote horizontal eye position test.

As shown in fig. 13, the user needs to find the position of the mark point from the object in the picture or the movie. The test checks the spatial localization of both eyes. This is a stereo object, testing the vision of both eyes and one eye. Also known as distance vision capability testing.

As shown in fig. 14, the user must find a distinctive graphic from each line of objects. In addition, tests can be used to detect visual memory function; after the examiner determines a string of symbols, the subject cannot repeat correctly. Measuring stereoscopic perception at distant points of vision (depth perception is determined purely by the eye's ability to coordinate); also known as depth perception (stereo) tests.

As shown in fig. 15, two far point targets: one is three red/green symbols and one is three blue/violet symbols. The ability of the user to recognize each symbol is indicative of the user being color-conscious, or slightly color-blind or severely color-blind. Defective patterns, background perception and color recognition may result in poor detection scores and the results of the two tests are analyzed in comparison. Also known as color vision test.

As shown in fig. 16, the left eye of the user sees an arrow and the right eye of the user sees a number. The arrow in the normal case should point between 4.5 and 5.5. This optotype will show the distance that the eyes are shifted inward or outward at the reading distance. Also known as the near point horizontal eye position test.

As shown in fig. 17, near point fusion vision test: the two eyes of the user respectively see two different colors of the ball. Normally three balls are seen in a vertical arrangement. This optotype tests the fusion ability of both eyes at reading distance. Also known as near point fusion vision testing.

The above is a software simulation diagram, which is only a display manner, and is not limited thereto. Therefore, the product can also have a plurality of different display and inspection modes to improve the inspection accuracy.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A one-stop electronic vision inspection instrument comprises a shell which is placed on a desktop and used for configuring internal and external devices, and is characterized by also comprising a controller, a display and an ocular, wherein the ocular is a group of imaging convex lenses fixed on the front surface of the shell; the display is used for displaying the fixation objects transmitted by the controller for visual inspection, and the distance between the central points of the two fixation objects is unchanged; the center of the display is movably arranged on the optical axis of the eyepiece and moves along the optical axis.

2. The one-stop electronic vision inspection apparatus of claim 1, wherein the degree of the eyepiece is constant and the focus is located at one side of the eyepiece; the focuses of the two eyepieces face outwards, the distance between the two focuses is constant, and the optical axis of the examinee is located between the two eyepieces.

3. The one-stop electronic vision inspection apparatus of claim 2, wherein the ocular power is +5.00D and the distance between the two foci is 95 mm.

4. The one-station electronic visual inspection instrument of claim 3, wherein the screen distance between the eyepiece and the display reaches the focal distance of the infinity point and the close point, wherein:

and (3) near point: the distance between the fluorescent screen and the ocular lens is 13.3 centimeters, the ocular lens is +5.00D, and the requirement of the adjusting force is + 2.50D.

5. The one-stop electronic visual inspection apparatus of claim 1, wherein the display uses a fusion principle to generate a stereoscopic sense perception in a plane and to generate a visual function fixation object that is the same as an external real space.

6. The one-stop electronic vision inspection apparatus of claim 4, further comprising a translation device, wherein said display is translated between the far point and the near point by the translation device at each level of 0.25D change.

7. The one-stop electronic vision inspection instrument of claim 1, further comprising a rocker connected to the controller, wherein the rocker is provided with a confirmation button, the controller receives a rocker command, and the target fixation on the display is controlled by a remote lever.

8. The one-stop electronic vision inspection apparatus of claim 2, further comprising a replaceable eyepiece, wherein the replaceable eyepiece is disposed in front of the eyepiece.

9. A one-stop electronic vision inspection method based on the inspection apparatus of claims 1-9, wherein the controller executes instructions for performing the following operations: the controller transmits the content data of the gaze object for examination to the display, the eyes of the examinees with different pupil distances are always on the gaze object through the ocular, and the display adjusts the distance from the ocular through the translation device to simulate the sense of distance; the examinee obtains the visual impression feedback of the examinee through the rocker selection, so that the visual quality test of the examinee is completed, and the visual quality tests corresponding to different observers are different.

10. The one-stop electronic visual inspection method according to claim 10, wherein the visual quality test includes one or more of a binocular spatial orientation ability test, a far-point vertical eye position test, a far-point horizontal eye position test, a far-distance visual ability test, a depth perception stereo test, a color vision test, a near-point horizontal eye position test and a near-point fusion visual test.