CN213075606U

CN213075606U - Vision detection device

Info

Publication number: CN213075606U
Application number: CN202021366642.0U
Authority: CN
Inventors: 李小刚; 任鹏; 邓浦洲; 费玲波; 时昊; 薛雨杭; 徐翔; 刘盾; 王超; 徐沛雯; 邵玲玉
Original assignee: Xuzhou Medical University
Current assignee: Xuzhou Medical University
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-30
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a vision detection device, which comprises a shell body capable of being worn on the head, wherein a detection part is arranged inside the shell body; the end part, far away from the eyes, of the shell is connected with a clamping groove used for containing an intelligent terminal, the clamping groove is arranged on the shell in an openable and closable manner, and the intelligent terminal is used for displaying a measurement pattern; the detection part comprises lens barrels corresponding to the eyes, the lens barrels comprise two groups which are respectively arranged, and the lens barrels are used for simulating the visual distance between the intelligent terminal and the eyes as the inspection standard visual distance of the visual chart; the shell is provided with an adjusting shifting sheet for adjusting the distance between the two groups of lens cones, the inside of the shell is also provided with a baffle plate capable of shielding a single eye, and the baffle plate is arranged between the lens cones and the eyes. The utility model discloses simple structure, it is convenient to use, can carry out the detection of eyesight anytime and anywhere, can effectively avoid external light to the influence that eyesight detected.

Description

Vision detection device

Technical Field

The utility model relates to an optical equipment technical field especially relates to an eyesight detection device.

Background

At present, most methods for measuring eyesight are visual charts, and the eyesight test can be carried out only in a fixed place, a large space and an environment with standard eyesight chart brightness. In the subject of vision detection, when people feel that vision is possibly problematic, detection is carried out, and passive detection brings unpleasant effects to physical health and daily life. If the passive detection is changed into the active detection, the objective necessary detection environment is changed into the self-test of the eyesight at any time and any place, and great guarantee is provided for the eyesight protection and the body health of people.

In the existing eyesight detection devices, most of the eyesight detection devices rely on an intelligent terminal, but the influence of external light on a projection image of the intelligent terminal is not fully considered when the eyesight detection devices are used, and the eyesight level of a user cannot be really restored.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a visual acuity testing device can make the user test monocular vision and binocular vision accurately anytime and anywhere, in time discovers pseudomyopia to make eyes effectively protected.

In order to realize the above purpose of the utility model, adopt the following technical scheme:

the utility model provides a vision detection device, which comprises a shell body capable of being worn on the head, wherein a detection part is arranged inside the shell body;

the end part, far away from the eyes, of the shell is connected with a clamping groove used for containing an intelligent terminal, the clamping groove is arranged on the shell in an openable and closable manner, and the intelligent terminal is used for displaying a measurement pattern;

the detection part comprises lens barrels corresponding to the eyes, the lens barrels comprise two groups which are respectively arranged, and the lens barrels are used for simulating the visual distance between the intelligent terminal and the eyes as the inspection standard visual distance of the visual chart;

the shell is provided with an adjusting shifting sheet for adjusting the distance between the two groups of lens cones, the inside of the shell is also provided with a baffle plate capable of shielding a single eye, and the baffle plate is arranged between the lens cones and the eyes.

Furthermore, the lens cone comprises a cylinder body which extends horizontally, an eyepiece lens and an objective lens are arranged in the cylinder body, and the eyepiece lens and the objective lens are arranged concentrically with the cylinder body.

Further, the eyepiece lens is arranged on the end face, close to the eyes, of the cylinder body, and the objective lens is arranged on the end face, far away from the eyes, of the cylinder body.

Further, the eyepiece lens is a convex lens, and the object lens is a concave lens.

Furthermore, the baffle can be arranged in the shell in a sliding mode, and a sliding groove matched with the baffle is formed in the shell.

Furthermore, the baffle can alternate and set up in the casing, be provided with on the casing with baffle assorted slot.

Furthermore, the clamping groove is connected with the shell through a hinge, and the hinge is located in the middle of the clamping groove and the shell.

Further, the adjusting poking sheets comprise two adjusting poking sheets, and each adjusting poking sheet corresponds to each group of lens barrels.

The vision detection device of the utility model combines the concave and convex lenses in the lens cone with the intelligent terminal, and simulates the existing inspection standard sight distance, so that the user can accurately test the eyesight of the eyes, the use is convenient, and the device can be carried about, thereby effectively enhancing the practicability;

after casing and draw-in groove close the lid, the inside lighttight camera bellows that can form of whole detection device shows the measurement pattern through the intelligent terminal of holding in the draw-in groove to and provide necessary light when detecting, thereby got rid of the puzzlement that current eyesight detection device need handheld terminal to operate, and the camera bellows can be fine isolated external light, avoided external light to change the interference to the eyesight detection accuracy, effectively improve the accuracy of eyesight detection.

The user can obtain a relatively real vision level by identifying the minimum mark on the measuring pattern and the vision grade corresponding to the minimum mark, and the user experience is effectively improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic view of the eye side of the vision testing device of the present invention;

fig. 2 is a schematic structural diagram of the intelligent terminal side of the middle vision detecting device of the present invention;

fig. 3 is a schematic structural view of the middle housing and the clamping groove after being covered;

fig. 4 is a diagram of the matching relationship between the detecting part and the blocking piece of the present invention.

Description of the drawings:

1-a shell; 11-a lens barrel; 111-a cylinder; 112-eyepiece lens; 113-objective lens;

12-adjusting the plectrum; 13-a baffle;

2-a card slot;

3-a hinge;

4-fixing the belt.

Detailed Description

In the following description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.

Examples

As shown in fig. 1-4, the vision testing device provided by the present invention comprises a shell 1 wearable on the head, wherein a testing part is arranged inside the shell 1; the end part, far away from eyes, of the shell 1 is connected with a card slot 2 used for placing an intelligent terminal, the card slot 2 is arranged on the shell 1 in an openable and closable manner, and the intelligent terminal is used for displaying a measurement pattern; the detection part comprises lens barrels 11 corresponding to the eyes, the lens barrels 11 comprise two groups which are respectively arranged, and the lens barrels 11 are used for simulating the visual distance between the intelligent terminal and the eyes into the inspection standard visual distance of the visual chart; the shell 1 is provided with an adjusting plectrum 12 for adjusting the distance between the two groups of lens cones, the inside of the shell is also provided with a baffle 13 which can shield a single eye, and the baffle is arranged between the lens cones 11 and the eyes.

Through the draw-in groove that can holding intelligent terminal, can cooperate smart mobile phone etc. with this detection device, realize the test to user's eyesight, draw-in groove and the connection form that can open and shut of casing, the operation of testing process has been made things convenient for, behind draw-in groove and casing buckle closure, eyesight detection device can constitute holistic camera bellows structure, the measurement pattern that utilizes smart mobile phone to put in provides necessary light for testing process, fine isolated to external light, the influence that external light change caused to the eyesight detection accuracy has effectively been avoided.

Specifically, the utility model provides a casing is wearable form, wears in the testing process at user's head, through connecting fixed band 4 on the casing, fixes detection device at user's eye. The detection part comprises lens barrels arranged on the left side and the right side, the lens barrels extend in the horizontal direction, the visual distance between eyes and the smart phone is in a horizontal state, images projected by the smart phone can be more fully scattered to eyeballs of a user, and the accuracy of vision detection is effectively guaranteed.

The detection part mainly detects the eyesight of the eyes in the detection process, wherein the eyesight detection is mainly completed through the lens barrel. The specific detection principle comprises:

the lens barrel 11 specifically includes two sets respectively disposed, and the two sets respectively correspond to the left eye and the right eye of the user; the lens cone is used for simulating the visual distance between the smart phone and eyes as the inspection standard visual distance of an eye chart, and comprises a cylinder body 111 extending horizontally, an eyepiece lens 112 and an objective lens 113 are arranged inside the cylinder body 111, the eyepiece lens 112 and the objective lens 113 are concentrically arranged on the lens cone, and the horizontal extension state of the lens cone is combined, so that light can be fully mapped onto the eyes of a user, and the detection accuracy is improved; the eyepiece lens 112 is arranged on the end face of the cylinder 111 close to the eyes, and the objective lens 113 is arranged on the end face of the cylinder 111 far away from the eyes, namely the objective lens 113 is close to the end of the smart phone, the eyepiece lens in the embodiment is a convex lens, the objective lens is a concave lens, and the convex lens and the concave lens are matched with each other, so that the visual distance between the smart phone and the eyes can be simulated as the standard visual distance, and the form of visual detection is fundamentally changed.

In addition to the eyepiece lens and the objective lens, a lens assembly including a concave lens and a convex lens may be further disposed in the lens barrel for simulating and detecting the standard viewing distance, and for a specific simulation principle, reference is made to the technical content disclosed in publication No. CN208988837U, which is not described herein again.

The user can obtain a relatively real vision level by identifying the minimum mark on the measuring pattern and the vision grade corresponding to the minimum mark, and the user experience is effectively improved. In the measuring process, after the user wears the detection device, the E sighting mark on the measuring pattern is identified through naked eyes, and therefore the vision level is judged. The application program matched with the detection device can be pre-installed on the smart phone, operation can be carried out through voice prompt on the application program, and the sighting target identification result fed back by the user is input into the application program through the voice identification function of the smart phone, so that the application program is analyzed to give a corresponding detection result.

In order to enable different groups to accurately detect vision, the utility model discloses in still be provided with the adjustment plectrum 12 that is used for adjusting the interval between two sets of lens barrels on the casing, adjustment plectrum 12 includes two, and is corresponding with every group lens barrel 11 respectively. The adjusting shifting piece is connected with the lens cones, and the distance between the lens cones is adjusted by sliding the shifting piece left and right. Through this kind of mode of setting up, the interpupillary distance difference that is adapted to different crowds that can be better to make the lens in the lens cone align with people's eye axis all the time, widen visual detection device's range of application.

In the shell, a baffle plate capable of shielding a single eye is further arranged between the lens cone and the eye. In this embodiment, this baffle slidable ground sets up in the casing, be provided with on the casing with baffle assorted spout, through gliding baffle, can realize not detecting sheltering from of eyes, do benefit to the monocular measurement to the visual measurement of two eyes need not take off the detector midway, and the both eyes can convenient switching.

The baffle is except above-mentioned form that sets up, still can be for inserted sheet and slot, and the baffle of inserted sheet form can switch the eyes that detect more conveniently, effectively improves detection efficiency.

The shell is connected with the clamping groove through the hinge 3, specifically, the hinge 3 is installed at the middle of the clamping groove 2 and the shell 1 and is installed at the upper side or the lower side of the connecting part, the intelligent terminal and the like can be favorably installed in the clamping groove through the hinge 3, the clamping groove and the shell are convenient to open and close, and the detection efficiency is effectively improved.

Need point out, through the combination between intelligent terminal and the visual detection device, can make the better understanding of user's own visual change, prevent true myopia to in the testing process, whole voice prompt need not manual operation, and it is convenient to use, can carry at any time, has effectively realized visual detection device's commonality and portability.

It should be noted that, a detection disc may be further disposed between the lens barrel and the eye, especially between the eyepiece lens and the baffle, the detection disc and the eyepiece lens are concentrically disposed, a rectangular gap for transmitting light is disposed at the center of the detection disc, and by combining the lens barrel, the detection disc and the rectangular gap in the middle, whether the eyeball of the user has astigmatism and the approximate degree of astigmatism may also be measured.

Astigmatism is a refractive abnormal manifestation of the eye, related to the curvature of the cornea. After parallel rays enter the eye, the eyeball cannot focus on one point (focus) due to different refractive powers of the eyeball on different meridian lines, and a clear object image cannot be formed, and the condition is called astigmatism.

The measurement principle of astigmatism in this embodiment includes:

the eyeball is a sphere with its own curvature. Normally, the curvatures at the same distance from the center point of the eyeball are substantially uniform. Therefore, each part of the eyeball can be projected on the retina after receiving light, and if the parts are focused on the same point differently, the part is astigmatic.

In the embodiment, the smart phone is placed in the clamping groove, and then the clamping groove is folded, so that the whole device becomes a darkroom, and light emitted by the smart phone can only enter eyes of a user through the rectangular gap in the middle;

due to the limitation of the middle rectangular gap on light, only one angle of eyeball receives the stimulation of the light, namely the vision condition of the eyeball at the angle can be measured;

through the rotation of the knob, eyeballs at different angles can sequentially receive the stimulation of light, and the data analysis of vision detection results at different angles is combined with the smartphone, so that the difference of diopters of the eyeballs at different angles is obtained, and whether the eyes of the user have astigmatism or not is obtained.

The outer fringe of detecting the disc in this embodiment extrudes the casing, can rotate and adjust, and the outer fringe has 10 scales, and every scale represents 36 degrees, and the user can measure the eyesight level under different rotation angles through rotatory detection disc to whether the eyes of user have astigmatism through the vision result of smart mobile phone or manual analysis detection.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The vision detection device is characterized by comprising a shell which can be worn on the head, wherein a detection part is arranged in the shell;

2. The vision testing device of claim 1, wherein said barrel includes a horizontally extending cylinder, and an eyepiece lens and an objective lens are disposed inside the cylinder, said eyepiece lens and objective lens being disposed concentrically with said cylinder.

3. A vision testing device according to claim 2, wherein said eyepiece lens is disposed on an end surface of said barrel proximal to the eye and said objective lens is disposed on an end surface of said barrel distal to the eye.

4. The vision testing device of claim 2, wherein the eyepiece lens is a convex lens and the object lens is a concave lens.

5. The vision testing device of claim 1, wherein the baffle is slidably disposed within the housing, and a sliding slot is disposed on the housing for mating with the baffle.

6. The vision testing device of claim 1, wherein the baffle is disposed interpenetratively within the housing, and a slot is disposed on the housing to mate with the baffle.

7. The vision testing device of any one of claims 1-6, wherein the card slot and the housing are connected by a hinge, and the hinge is located in the middle of the card slot and the housing.

8. The vision detecting device according to any one of claims 1 to 6, wherein the adjustment paddle includes two, each adjustment paddle corresponding to each group of lens barrels.