CN220001723U

CN220001723U - Visual function measuring instrument

Info

Publication number: CN220001723U
Application number: CN202321307784.3U
Authority: CN
Inventors: 肖圣盈
Original assignee: Jilin Yianshi Technology Co ltd
Current assignee: Jilin Yianshi Technology Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-11-14
Anticipated expiration: 2033-05-26

Abstract

The utility model belongs to the technical field of vision function measurement, and relates to a vision function measuring instrument, which comprises: the box, locate the support in the box and locate the visual function measuring device on the support, visual function measuring device includes: the device comprises a first display screen, an ocular, a lens switching device and a linear driving mechanism, wherein the first display screen is used for displaying a target image, the ocular is used for accommodating eyes of a user so that the user can observe the target image on the first display screen, the lens switching device is used for switching lens types on the ocular, and the linear driving mechanism is used for driving the first display screen to slide close to or far away from the ocular so as to adjust the position of the target image relative to the ocular.

Description

Visual function measuring instrument

Technical Field

The utility model belongs to the technical field of vision function measurement, and relates to a vision function measuring instrument.

Background

The eye is a very complex and delicate organ of our human. Due to the change of learning and working modes in the modern society, myopia crowds are increasingly huge, and especially the incidence rate of teenagers myopia is increased year by year and is high. The cause of myopia has varied, and the visual function of the eye represents the ability of the individual functional parts of our eye to work together, because of the tolerance of the eye, it is not perceived as visually as it is. The visual functions are mainly accommodation and vergence, one representing the focusing ability of the eye to see far and near, and one representing the ability of the eye to rotate inside and outside. Under the condition of normal functions, the two are matched and coordinated, so that eyes can easily look at any distance, and the generation of visual fatigue can be prevented. When the visual function is abnormal, the problems of visual fatigue, far-near blur, double vision, lack of concentration, incapability of lasting object watching, even deepening degree and the like are easily generated, so that various visual function problems of eyes can be estimated through measuring the visual function of the eyes.

Currently, visual function screening devices on the market are widely used in clinical and teaching work, and the examination items include: fusion examination, vergence examination, horizontal declivity, gradient method for measuring AC/A, NRA, PRA, BCC, amplitude adjustment, sensitivity adjustment and collection near point. However, the existing detection tool needs manual operation when visual function detection is performed, and repeated abrasion easily causes uncertain detection results, so that the detection results are affected; meanwhile, when the vision function is performed, the problems of inconvenient operation, low working efficiency and the like exist due to high requirement on the inspection environment, and the inspection result is directly affected.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a vision function measuring instrument which can improve the convenience of a user in measuring vision functions.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a vision function measuring instrument, comprising: the box, locate support in the box and locate visual function measuring device on the support, visual function measuring device includes: the utility model provides a lens, lens auto-change over device and sharp actuating mechanism, first display screen is used for showing the target image, the eyepiece is used for holding user's eye to make the user can observe the target image that is located on the first display screen, lens auto-change over device is used for switching over the lens model that is located on the eyepiece, sharp actuating mechanism is used for driving first display screen to be close to or keep away from the eyepiece slides, in order to adjust the position of target image for the eyepiece, sharp actuating mechanism includes: horizontal plate, linear guide, slider, transmission and a drive arrangement, the horizontal plate is fixed in on the support, linear guide bottom terminal surface with the horizontal plate is fixed, slider slidable locates on the linear guide, just the slider with a display screen is fixed, transmission is fixed in on the horizontal plate, just transmission with a display screen is connected, is used for driving a display screen is in be close to on the linear guide or keep away from the eyepiece slides, a drive arrangement install in on the horizontal plate, just a drive arrangement with transmission is connected, is used for the drive transmission work.

Further, the lens switching device includes:

the vertical plate is fixed at one end of the horizontal plate, and is provided with a mounting groove for mounting the ocular;

at least two lens groups of different types, wherein the lens groups are rotatably arranged on the vertical plate and are close to the mounting groove;

the at least two first rotating parts are respectively fixed on the at least two different types of lens groups and are used for driving the lens groups to rotate so that the two different types of lens groups can be switched and positioned on the ocular lens, and the number of the first rotating parts is matched with the number of the lens groups;

the at least two second driving devices are respectively connected with the at least two first rotating parts in a transmission way and are used for driving the first rotating parts to rotate, and the number of the second driving devices is matched with that of the first rotating parts.

Further, the visual function measuring device includes: the eyepiece shielding device is arranged on the vertical plate and is close to the mounting groove and used for shielding the eyepiece.

Further, the vision function measuring device further includes: and the supporting device is arranged on the box body and is used for supporting the neck of a user.

Further, the vision function measuring instrument further includes: a guard disposed around the eyepiece for contacting the face of the user.

Further, the protection device is a flexible protection pad, the front end of the flexible protection pad is also provided with a concave area, and the concave area is positioned at the lower side of the flexible protection pad.

Further, a second display screen is further arranged on the box body, and the second display screen is in signal connection with the lens switching device and the linear driving mechanism.

Further, an access window is further formed in the top of the box body.

Further, a drag chain is further arranged on the horizontal plate.

The utility model has the beneficial effects that:

(1) Through setting up sharp actuating mechanism for the user can be automatically regulated and be located the position of target image on the first display screen when measuring the eyesight, need not manual operation, thereby promoted measuring efficiency and convenience, and owing to sharp actuating mechanism's existence, guaranteed that the distance of optotype is accurate controllable, thereby promoted the precision of eyesight when measuring.

(2) By arranging the lens switching device, a user can test the vision result under different lens combinations according to the matching of different lens combinations and the sighting marks on the first display screen when using the measuring instrument to measure the vision, so that the adaptation condition of the eyes to lenses with different degrees is measured, and the eye conditions such as myopia degree, hyperopia degree, astigmatism degree and the like are determined.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the installation structure of the vision function measuring device of the present utility model;

FIG. 3 is a schematic view of an installation structure of a vision function measuring device according to another view angle of the present utility model;

FIG. 4 is a schematic view of the installation structure of the lens switching device in the present utility model;

fig. 5 is a schematic view of an installation structure of an eyepiece shielding device in the present utility model.

The marks in the figure are as follows: 100-box body, 110-protective cover; 200-supporting; 300-visual function measuring device, 310-first display screen, 320-eyepiece, 330-lens switching device, 331-vertical plate, 3311-mounting groove, 332-lens group, 333-first rotating component, 334-second driving device, 340-linear driving mechanism, 341-horizontal plate, 342-linear guide rail, 343-slide block, 344-transmission device, 345-first driving device; 350-an eyepiece shielding device, 351-a retainer ring, 352-a second rotating component, 353-a third driving device; 360-supporting devices, 361-supporting seats, 362-lifting rods and 363-fourth driving devices; 370-guard; 380-drag chain; 400-a second display screen; 500-paper towel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-5, a vision function measuring instrument, comprising: the device comprises a box body 100, a bracket 200 arranged in the box body 100 and a visual function measuring device 300 arranged on the bracket 200, wherein the visual function measuring device 300 comprises: a first display screen 310, an eyepiece 320, a lens switching device 330, and a linear driving mechanism 340, wherein the first display screen 310 is used for displaying a target image, the eyepiece 320 is used for accommodating eyes of a user so that the user can observe the target image on the first display screen 310, the lens switching device 330 is used for switching a lens model on the eyepiece 320, the linear driving mechanism 340 is used for driving the first display screen 310 to slide close to or far from the eyepiece 320 so as to adjust the position of the target image relative to the eyepiece 320, and the linear driving mechanism 340 comprises: the device comprises a horizontal plate 341, a linear guide rail 342, a sliding block 343, a transmission device 344 and a first driving device 345, wherein the horizontal plate 341 is fixed on the support 200, the bottom end face of the linear guide rail 342 is fixed with the horizontal plate 341, the sliding block 343 is slidably arranged on the linear guide rail 342, the sliding block 343 is fixed with the first display screen 310, the transmission device 344 is fixed on the horizontal plate 341, the transmission device 344 is connected with the first display screen 310 and is used for driving the first display screen 310 to slide on the linear guide rail 342 close to or far away from the eyepiece 320, the first driving device 345 is mounted on the horizontal plate 341, and the first driving device 345 is in transmission connection with the transmission device 344 and is used for driving the transmission device 344 to work.

Through setting up sharp actuating mechanism for the user can be automatically regulated and be located the position of target image on the first display screen when measuring the eyesight, need not manual operation, thereby promoted measuring efficiency and convenience, and owing to sharp actuating mechanism's existence, guaranteed that the distance of sighting target is accurate controllable, thereby promoted the precision of eyesight when measuring.

In one embodiment, the lens switching device 330 includes: a vertical plate 331, at least two different types of lens sets 332, at least two first rotating members 333 and at least two second driving means 334; the vertical plate 331 is fixed to one end of the horizontal plate 341, and a mounting groove 3311 for mounting the eyepiece 320 is formed in the vertical plate 331; the lens group 332 is rotatably disposed on the vertical plate 331, and the lens group 332 is disposed near the mounting groove 3311; at least two first rotating parts 333 are respectively fixed on the at least two different types of lens groups 332 and are used for driving the lens groups 332 to rotate so that the two different types of lens groups 332 can be switched and positioned on the ocular 320, and the number of the first rotating parts 333 is adapted to the number of the lens groups 332; at least two second driving devices 334 are respectively connected with at least two first rotating parts 333 in a transmission way and are used for driving the first rotating parts 333 to rotate, and the number of the second driving devices 334 is matched with that of the first rotating parts 333. In the present embodiment, the lens groups 332 are arranged in two groups, and the lens groups 332 are arranged on one side of the vertical plate 331 near the first display screen 310; wherein each lens group 332 is comprised of two lenses. In this embodiment, the second driving device 334 is a micro motor.

In one embodiment, the vision function measuring device 300 includes: an eyepiece shielding device 350, wherein the eyepiece shielding device 350 is mounted on the vertical plate 331, and the eyepiece shielding device 350 is disposed near the mounting groove 3311 for shielding the eyepiece 320. In this embodiment, the eyepiece shielding device 350 includes: the pair of check rings 351, the pair of second rotating parts 352 and the pair of third driving devices 353, the two check rings 351 are rotatably installed on the vertical plate 331, one check ring 351 is close to one of the installation grooves 3311 and used for shielding one of the eyepieces 320, the other check ring 351 is close to the other installation groove 3311 and used for shielding the other eyepiece 320, the two second rotating parts 352 are respectively fixed with the two check rings 351 and used for driving the two check rings 351 to rotate, and the two third driving devices 353 are respectively connected with the two second rotating parts 352 in a transmission manner and used for driving the second rotating parts 352 to rotate so that the two check rings 351 can be used for shielding the two eyepieces 320. In this embodiment, the third driving device 353 is a micro motor.

In one embodiment, the vision function measuring device 300 further includes: and a supporting device 360, wherein the supporting device 360 is arranged on the box body 100 and is used for supporting the neck of a user. Further, the supporting device 360 includes: the lifting rod 361 is in transmission connection with the fourth driving device 363, and is used for driving the lifting rod 362 to lift, and the supporting seat 361 is arranged on the lifting rod 362, so that the lifting rod 362 can drive the supporting seat 361 to move up and down. Through setting up strutting arrangement 360 by supporting seat 361, lifter 362 and fourth drive arrangement 363 constitute for the user can be according to the height of demand adjustment supporting seat 361, thereby guarantees that the user can be more comfortable at the function measuring apparatu of using, and because the supporting seat on strutting arrangement 360 possesses high adjustability, makes the function measuring apparatu of looking can be suitable for different grade crowd. In this embodiment, the support base 361 is further provided with an arc-shaped concave region; the arrangement of the arc-shaped concave area enables the user to feel more comfortable when the neck of the user is placed on the supporting seat.

In one embodiment, to facilitate the use of the vision function measuring device 300 by the user, the user is prevented from directly contacting the support, and a towel is placed on the support.

In one embodiment, the vision function measuring instrument further includes: the protector 370, protector 370 encircles eyepiece 320 sets up for contact the user's face, further, protector 370 is flexible protection pad, the front end of flexible protection pad still is equipped with the concave region, just the concave region is located the downside of flexible protection pad. Through setting up flexible protection pad, on the one hand can increase the comfort level when user's face and protector 370 contact, on the other hand makes protector 370 can adapt to different human face shapes to promote the user experience when using visual function measuring apparatu.

In one embodiment, the case 100 is further provided with a second display screen 400, where the second display screen 400 is in signal connection with the lens switching device 330 and the linear driving mechanism 340, and further, the second display screen 400 is further electrically connected with the supporting device 360 and the first display screen 310. In this embodiment, the second display screen 400 is a touch screen. Through setting up the touch-control screen for the user can control the touch-control screen and control visual function measuring apparatu and work.

In one embodiment, the top of the case 100 is further provided with an access window, and the protection cover 110 is detachably installed at the access window. Through setting up the access window, when visual function measuring apparatu breaks down, the staff can open the apron of access window department and look over the maintenance and be located the inside trouble of visual function measuring device 300 of box 100 to it can be more convenient to guarantee to look the function measuring apparatu when the maintenance.

In one embodiment, a drag chain 380 is further disposed on the horizontal plate 341. Through setting up the tow chain 380 for the user can hide the wiring in the visual function measuring apparatu in the tow chain 380, avoids the inside of visual function measuring apparatu too disordered.

In one embodiment, the transmission 344 is a belt transmission 344, and further, the belt transmission 344 includes: the conveyer belt, action wheel, follow driving wheel, action wheel and follow driving wheel all rotatable mounting on horizontal plate 341, action wheel pass through the conveyer belt and follow driving wheel transmission is connected, action wheel and first drive arrangement 345 transmission are connected, and the bottom and the conveyer belt of first display screen 310 are fixed to make the conveyer belt during operation, can take first display screen 310 to remove on linear guide 342.

According to the technical scheme of the utility model, the horizontal plate 341 is fixed on the bracket 200, the end face of the bottom of the linear guide rail 342 is fixed with the horizontal plate 341, the sliding block 343 is slidably arranged on the linear guide rail 342, and the sliding block 343 is fixed with the first display screen 310, so that the horizontal plate 341, the linear guide rail 342 and the sliding block 343 can form a ground guide rail, and compared with a suspended guide rail, the ground guide rail can avoid abnormal measurement results caused by bending deformation of the linear guide rail 342 due to the weight of the first display device, thereby ensuring that the measurement results of a user when vision is measured by using the vision function measuring instrument can be more accurate.

The above-described embodiments are only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.

Claims

1. A vision function measuring instrument, comprising: the visual function measuring device comprises a box body (100), a bracket (200) arranged in the box body (100) and a visual function measuring device (300) arranged on the bracket (200), wherein the visual function measuring device (300) comprises: first display screen (310), eyepiece (320), lens auto-change over device (330) and sharp actuating mechanism (340), first display screen (310) are used for showing the target image, eyepiece (320) are used for holding user's eye to enable the user to observe the target image that is located on first display screen (310), lens auto-change over device (330) are used for switching the lens model that is located on eyepiece (320), sharp actuating mechanism (340) are used for driving first display screen (310) to be close to or keep away from eyepiece (320) are slided, in order to adjust the position of target image relative to eyepiece (320), sharp actuating mechanism (340) includes: horizontal plate (341), linear guide (342), slider (343), transmission (344) and first drive arrangement (345), horizontal plate (341) is fixed in on support (200), linear guide (342) bottom terminal surface with horizontal plate (341) are fixed, slider (343) slidable locate on linear guide (342), just slider (343) with first display screen (310) are fixed, transmission (344) are fixed in on horizontal plate (341), just transmission (344) with first display screen (310) are connected, are used for driving first display screen (310) are close to or keep away from on linear guide (342) eyepiece (320) are slided, first drive arrangement (345) install in on horizontal plate (341), just first drive arrangement (345) with transmission (344) transmission is connected, is used for the drive transmission (344) work.

2. A visual function measuring instrument according to claim 1, wherein the lens switching device (330) comprises:

a vertical plate (331), wherein the vertical plate (331) is fixed at one end of the horizontal plate (341), and a mounting groove (3311) for mounting the ocular lens (320) is arranged on the vertical plate (331);

at least two lens groups (332) of different types, wherein the lens groups (332) are rotatably arranged on a vertical plate (331), and the lens groups (332) are arranged close to the mounting groove (3311);

at least two first rotating parts (333), at least two first rotating parts (333) are respectively fixed on at least two different types of lens groups (332) and are used for driving the lens groups (332) to rotate so that the two different types of lens groups (332) can be switched and positioned on the ocular lens (320), and the number of the first rotating parts (333) is matched with the number of the lens groups (332);

at least two second driving devices (334), at least two second driving devices (334) are respectively connected with at least two first rotating components (333) in a transmission way and are used for driving the first rotating components (333) to rotate, and the number of the second driving devices (334) is matched with the number of the first rotating components (333).

3. A visual function measuring instrument according to claim 2, wherein the visual function measuring device (300) comprises: the eyepiece shielding device (350), the eyepiece shielding device (350) is installed on the vertical plate (331), and the eyepiece shielding device (350) is close to the installation groove (3311) and used for shielding the eyepiece (320).

4. A visual function measuring instrument according to claim 3, wherein the visual function measuring device (300) further comprises: and the supporting device (360) is arranged on the box body (100) and is used for supporting the neck of a user.

5. The vision function measuring instrument of claim 4, further comprising: a guard (370), the guard (370) being disposed around the eyepiece (320) for contacting the user's face.

6. A visual function measuring instrument according to claim 5, characterized in that the guard (370) is a flexible guard pad, the front end of which is further provided with a recessed area, and the recessed area is located at the underside of the flexible guard pad.

7. A visual function measuring instrument according to claim 6, wherein a second display screen (400) is further provided on the case (100), and the second display screen (400) is in signal connection with the lens switching device (330) and the linear driving mechanism (340).

8. Visual function measuring instrument according to claim 1, characterized in that the top of the box (100) is further provided with an access window.

9. Visual function measuring instrument according to claim 1, characterized in that a drag chain (380) is further provided on the horizontal plate (341).