Vision detection device and vision detection method

Abstract

The invention relates to the technical field of medical detection, and discloses a vision detection device and a vision detection method.The vision detection device comprises a visual chart, a plane mirror and a moving device, the plane mirror and the visual chart are arranged at an interval, the imaging face of the plane mirror and the visual chart are oppositely arranged, and a person to be detected is located between the visual chart and the plane mirror; the visual chart is presented by the plane mirror; the moving device is connected with the plane mirror, or the moving device is connected with the visual chart and the plane mirror, and is used for adjusting the distance between the to-be-detected person and the visual chart presented by the plane mirror; the moving device drives the plane mirror to move or simultaneously drives the plane mirror and the visual chart to move, so that the distance between the to-be-detected person and the visual chart presented in the plane mirror can be adjusted. On the basis, the distance between the to-be-detected person and the visual chart presented by the plane mirror can be adjusted without moving the position of the to-be-detected person, so that the technical effect of improving the simplicity and convenience of vision detection is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of vision detection, and in particular to a vision detection device and a vision detection method. Background Art

[0002] In order to reduce the space occupied, existing vision testing devices usually have a plane mirror, and the imaging surface of the plane mirror is set opposite to the eye chart. The person to be tested has his vision tested through the eye chart in the plane mirror, so as to utilize the imaging principle of the plane mirror to reduce the space required for the vision testing device.

[0003] The minimum visual acuity value of the existing vision chart is 0.1. When the visual acuity of the person to be tested is less than 0.1, the person to be tested needs to move towards the plane mirror until he can see the largest image in the vision test chart, and record the distance between the person to be tested and the plane mirror at this time, so as to convert the visual acuity value of the person to be tested. However, during the test, since the person to be tested needs to move, it is inconvenient to use the vision test device. Summary of the invention

[0004] In view of this, the present invention provides a vision detection device and a vision detection method to solve the problem of inconvenience in using the existing vision chart detection.

[0005] In a first aspect, the present invention provides a vision detection device, comprising:

[0006] Eye chart;

[0007] A plane mirror is arranged at a distance from the eye chart, the imaging surface of the plane mirror is arranged opposite to the eye chart, the person to be tested is located between the eye chart and the plane mirror, and is used to perform vision testing through the eye chart presented by the plane mirror;

[0008] A mobile device is connected to the plane mirror, or the mobile device is connected to both the eye chart and the plane mirror, and is used to adjust the distance between the person to be tested and the eye chart presented by the plane mirror.

[0009] Beneficial effect: By driving the plane mirror to move or driving the plane mirror and the eye chart to move simultaneously through the moving device, the distance between the person to be tested and the eye chart presented in the plane mirror can be adjusted. Based on this, the distance between the person to be tested and the eye chart presented in the plane mirror can be adjusted without the person to be tested moving, thereby achieving the technical effect of improving the simplicity of vision testing.

[0010] In an optional embodiment, the mobile device includes:

[0011] Drive structure;

[0012] A transmission structure is connected to the driving structure, one side of the transmission structure is connected to the eye chart and the plane mirror, and is used to drive the movement of the eye chart and the plane mirror under the drive of the driving structure, or one side of the transmission structure is connected to the plane mirror, and is used to drive the movement of the plane mirror under the drive of the driving structure.

[0013] Beneficial effect: The driving structure drives the movement of the transmission structure, which further drives the movement of the plane mirror, so as to adjust the distance between the person to be tested and the vision chart presented by the plane mirror without manual adjustment, thereby achieving the technical effect of improving the convenience of moving the plane mirror position.

[0014] In an optional embodiment, the driving structure is rotationally connected to the transmission structure, and the driving structure has an output shaft;

[0015] The transmission structure comprises:

[0016] A first rotating member connected to the output shaft;

[0017] a second rotating member, spaced apart from the first rotating member;

[0018] A transmission member, one side of which is connected to both the first rotating member and the second rotating member, and the other side of which is connected to both the eye chart and the plane mirror, or the other side of which is connected to the plane mirror.

[0019] Beneficial effect: By converting rotational motion into linear motion through the first rotating member, the second rotating member and the transmission member, the space required for the vision detection device can be reduced, thereby reducing the space restrictions of the vision detection device, thereby achieving the technical effect of improving the ease of use of the vision detection device.

[0020] In an optional embodiment, the mobile device includes:

[0021] A sliding structure connected between the transmission member and the eye chart and between the transmission member and the plane mirror, the sliding structure being used to drive the eye chart and the plane mirror to slide along with the rotation of the transmission member;

[0022] Alternatively, the sliding structure is connected between the transmission member and the plane mirror, and the sliding structure is used to drive the plane mirror to slide along with the rotation of the transmission member.

[0023] Beneficial effect: The sliding structure can limit the plane mirror and the eye chart to move back and forth along the transmission member, thereby achieving the technical effect of improving the stability of the plane mirror movement.

[0024] In an optional embodiment, the sliding structure includes:

[0025] A guide member, disposed on one side of the transmission member;

[0026] A sliding member is slidably connected to the guide member, the sliding member is fixedly connected to the transmission member, the sliding member is fixedly connected to the eye chart and the plane mirror, or the sliding member is fixedly connected to the plane mirror.

[0027] Beneficial effect: The sliding part slides along the length direction of the guide part along with the transmission part, that is, along the length direction of the transmission part, so that the sliding part drives the plane mirror to move only along the length direction of the guide part, and the moving direction of the plane mirror can be limited, so as to achieve the technical effect of improving the stability of the movement of the plane mirror.

[0028] In an optional embodiment, a plurality of vision scales are provided on the transmission member, and when the moving device drives the vision chart and the plane mirror to move a preset distance, or when the moving device drives the plane mirror to move a preset distance, the distance between the person to be tested and the vision chart presented by the plane mirror corresponds one-to-one to the value of the vision scale.

[0029] Beneficial effect: Medical staff can directly read the vision scale of the person to be tested without converting the vision value of the person to be tested, thereby achieving the technical effect of improving the convenience of obtaining the vision value of the person to be tested.

[0030] In an optional embodiment, the vision scale is provided on the surface of the transmission member, and the font of the vision scale is arranged toward the direction of the person to be tested;

[0031] When the moving device drives the vision chart and the plane mirror to move a preset distance, or when the moving device drives the plane mirror to move a preset distance, the vision scale closest to the person to be tested is the vision value of the person to be tested.

[0032] Beneficial effect: The medical staff is located at the position of the vision chart to test the vision of the person to be tested. When the moving device drives the plane mirror to move to the preset distance, the plane mirror stops moving, and the person to be tested can see the opening direction of the detection mark corresponding to the vision value of 0.1. At this time, the vision scale closest to the person to be tested is the vision value of the person to be tested. Based on this, the medical staff does not need to move, and can read the vision scale through the slot in situ to know the vision value of the person to be tested, thereby achieving the technical effect of improving the convenience of detecting the vision value of the person to be tested.

[0033] In an optional implementation, the distance that the moving device drives the eye chart and the plane mirror to move each time is a preset value, or the distance that the moving device drives the plane mirror to move each time is a preset value.

[0034] And / or, the vision detection device comprises:

[0035] The lifting structure is connected to the eye chart and is used to adjust the height of the detection mark on the detection line of the eye chart to be at the same height as the line of sight of the person to be tested.

[0036] Beneficial effect: By setting the driving distance of the mobile device as a preset value, the technical effect of the convenience of setting the preset distance of the mobile device can be improved.

[0037] The medical staff drives the height of the detection mark corresponding to the vision value of 0.1 to be at the same height as the line of sight of the person to be tested through the lifting structure. When the person to be tested can clearly see the opening direction of the detection mark corresponding to 0.1, a normal vision test is performed, that is, the medical staff tests the detection marks on the detection rows at different heights on the person to be tested, and the lifting structure drives the eye chart to make the detection marks on the detection row of the eye chart and the line of sight of the person to be tested at the same height, which can improve the accuracy of the distance between the person to be tested and the eye chart presented by the plane mirror, thereby achieving the technical effect of improving the accuracy of the vision value detection of the person to be tested.

[0038] In a second aspect, the present invention further provides a method for detecting vision, using the above-mentioned vision detection device for detection;

[0039] The person to be tested is located between the plane mirror and the eye chart;

[0040] Determining whether the subject to be tested can clearly see the maximum detection mark on the vision chart;

[0041] When the person to be tested cannot clearly see the maximum detection mark on the eye chart, the moving device drives the plane mirror to move, or the moving device drives the eye chart and the plane mirror to move until the person to be tested can clearly see the maximum detection mark on the eye chart.

[0042] Beneficial effect: Because the vision detection method adopts the vision detection device for detection, it has the same effect as the vision detection device, and will not be described in detail here.

[0043] In an optional implementation, before determining whether the person to be tested can clearly see the maximum detection mark on the vision chart, the method further includes:

[0044] The lifting structure drives the eye chart to rise and fall, so that the height of the maximum detection mark on the eye chart is at the same height as the line of sight of the person to be tested;

[0045] and / or,

[0046] After determining whether the subject to be tested can clearly see the maximum detection mark on the vision chart, the method further includes:

[0047] When the person to be tested can clearly see the largest detection mark on the eye chart, the lifting structure drives the eye chart to rise and fall, so that the height of the detection mark on the detection line of the eye chart is at the same height as the line of sight of the person to be tested.

[0048] Beneficial effect: The lifting structure can make the height of the detection mark on the detection line of the eye chart and the line of sight of the person to be tested at the same height, which can improve the accuracy of the distance between the person to be tested and the eye chart presented by the plane mirror, thereby achieving the technical effect of improving the accuracy of the vision value detection of the person to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 is a front view of a vision detection device according to an embodiment of the present invention;

[0051] Figure 2 FIG. 4 is a schematic diagram of the structure of a mobile device according to an embodiment of the present invention.

[0052] Figure 3 Flow chart of a vision detection method according to an embodiment of the present invention.

[0053] Description of reference numerals:

[0054] 1. Eye chart; 2. Plane mirror;

[0055] 3. Mobile device; 301. Driving structure;

[0056] 302, transmission structure; 3021, first rotating member; 3022, second rotating member; 3023, transmission member;

[0057] 303, sliding structure; 3031, guide member; 3032, sliding member;

[0058] 304. Shell. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0060] Combine the following Figures 1 to 3 , describing an embodiment of the present invention.

[0061] According to an embodiment of the present invention, on the one hand, a vision detection device is provided, comprising:

[0062] Eye chart 1;

[0063] The plane mirror 2 is arranged at a distance from the eye chart 1, and the imaging surface of the plane mirror 2 is arranged opposite to the eye chart 1. The person to be tested is located between the eye chart 1 and the plane mirror 2, and is used to perform vision testing through the eye chart presented by the plane mirror 2;

[0064] The mobile device 3 is connected to the plane mirror 2, or the mobile device 3 is connected to both the eye chart 1 and the plane mirror 2, and is used to adjust the distance between the person to be tested and the eye chart presented by the plane mirror 2.

[0065] In the vision testing device of the present embodiment, the distance between the person to be tested and the vision chart presented by the plane mirror 2 can be adjusted by driving the plane mirror 2 to move or driving the plane mirror 2 and the vision chart 1 to move simultaneously through the moving device 3. Based on this, the distance between the person to be tested and the vision chart presented by the plane mirror 2 can be adjusted without the person to be tested moving, thereby achieving the technical effect of improving the simplicity of vision testing.

[0066] In this embodiment, the vision chart 1 is provided with multiple rows of detection marks from top to bottom. For example, the detection marks are letters "E". The openings of adjacent letters "E" are oriented in different directions. The sizes of letters in each row are the same. Figure 1 As shown, the size of each row of letters decreases as the height decreases, and each row of letters corresponds to a visual acuity value, for example, the visual acuity value corresponding to the largest letter is 0.1, and the visual acuity value corresponding to the smallest letter is 2.0.

[0067] Specifically, during the vision test, the medical staff is located near the vision chart 1 to point out the detection marks of different detection rows. When the distance between the person to be tested and the vision chart presented by the plane mirror 2 is 5.0m, the person to be tested can accurately tell the opening direction of the maximum detection mark, that is, the opening direction of the detection mark corresponding to the vision value of 0.1, which can prove that the person to be tested can perform a normal vision test. For example, during a normal vision test, the person to be tested can tell the opening direction of the detection mark corresponding to the vision value of 0.4, and further, the person to be tested can tell the letter direction corresponding to the vision value of 0.5, but the person to be tested cannot tell the letter direction corresponding to the vision value of 0.6, which can prove that the vision of the person to be tested is 0.5.

[0068] Among them, the detection mark on the detection line refers to the detection mark specifically specified by the medical staff, which can be any detection mark in the vision chart 1. The vision value detection range in the vision chart 1 is 0.1-2.0, and when the person to be tested cannot tell the opening direction of the detection mark corresponding to the vision value of 0.1, it means that the person to be tested cannot see all the detection marks on the vision chart 1. At this time, the plane mirror 2 can be controlled by the moving device 3 to move in the direction close to the person to be tested until the person to be tested can clearly see the opening direction of the detection mark corresponding to the vision value of 0.1, and the vision value of the person to be tested is calculated by the distance between the person to be tested and the vision chart presented by the plane mirror 2.

[0069] Of course, in other embodiments, the type and size of the detection mark on the vision chart 1 can be adjusted according to the different designs of the vision detection device.

[0070] In this embodiment, the moving device 3 is connected to the plane mirror 2 , and the moving device 3 drives the plane mirror 2 to move, so as to adjust the distance between the person to be tested and the vision chart presented by the plane mirror 2 .

[0071] Of course, in other embodiments, according to the different designs of the vision detection device, two mobile devices 3 can be provided, one mobile device 3 is connected to the plane mirror 2, and the other mobile device 3 is connected to the vision chart 1, so that both the plane mirror 2 and the vision chart 1 are moved, and the distance adjustment between the person to be detected and the vision chart presented by the plane mirror 2 can also be achieved. Compared with other embodiments, in this embodiment, the mobile device 3 only controls the movement of the plane mirror 2 to achieve the distance between the person to be detected and the vision chart presented by the plane mirror 2, which can reduce the difficulty of adjustment, thereby achieving the technical effect of improving the convenience of using the vision detection device. At the same time, in this embodiment, there is no need for the vision chart 1 to change its position, that is, there is no need for medical staff to follow the movement of the vision chart 1, and the detection mark on the detection line of the vision chart 1 can be pointed out, so as to further achieve the technical effect of improving the convenience of using the vision detection device.

[0072] In addition, combined Figure 2 As shown, in this embodiment, the mobile device 3 includes:

[0073] Driving structure 301;

[0074] The transmission structure 302 is connected to the driving structure 301 . One side of the transmission structure 302 is connected to the plane mirror 2 , and is used to drive the plane mirror 2 to move under the drive of the driving structure 301 .

[0075] The driving structure 301 drives the transmission structure 302 to move, which further drives the plane mirror 2 to move, so as to adjust the distance between the person to be tested and the vision chart presented by the plane mirror 2 without manual adjustment, thereby achieving the technical effect of improving the convenience of moving the position of the plane mirror 2.

[0076] Specifically, the driving structure 301 is rotationally connected to the transmission structure 302, and the driving structure 301 has an output shaft;

[0077] The transmission structure 302 includes:

[0078] A first rotating member 3021 connected to the output shaft;

[0079] The second rotating member 3022 is spaced apart from the first rotating member 3021;

[0080] The transmission member 3023 has one side connected to both the first rotating member 3021 and the second rotating member 3022 , and the other side connected to the plane mirror 2 .

[0081] The driving structure 301 is a motor, the first rotating member 3021 is a first pulley, the second rotating member 3022 is a second pulley, and the transmission member 3023 is a belt. The first pulley is connected to the second pulley through the belt. The motor drives the first pulley to rotate, and further drives the second pulley to rotate through the belt, so that the reciprocating rotation of the motor drives the reciprocating transmission of the belt, and further drives the plane mirror 2 along the Figure 2 Reciprocating movement in the X-axis direction is shown.

[0082] Specifically, in this embodiment, combined with Figure 2 As shown, the axial direction of the output shaft is arranged parallel to the Z-axis direction, so that the axial directions of the first rotating member 3021 and the second rotating member 3022 are also arranged parallel to the Z-axis direction.

[0083] In other embodiments, the axial direction of the output shaft may be arranged parallel to the Y-axis direction, so that the axial directions of the first rotating member 3021 and the second rotating member 3022 are also arranged parallel to the Y-axis direction.

[0084] As a convertible implementation, the driving structure 301 may be a motor, the first rotating member 3021 may be a first gear, the second rotating member 3022 may be a second gear, and the transmission member 3023 may be a transmission chain. The transmission chain is used to transmit the power along the first gear and the second gear, thereby enabling the plane mirror 2 to reciprocate along the X-axis direction.

[0085] In other embodiments, according to different designs of the vision detection device, the driving structure 301 is fixedly connected to the transmission structure 302. For example, the driving structure 301 is an electric telescopic rod, and the transmission structure 302 is a transmission rod. The driving structure 301 drives the transmission structure 302 to move linearly, so as to adjust the distance between the person to be detected and the vision chart presented by the plane mirror 2. The electric telescopic rod requires additional Figure 2 The dimensions in the X-axis direction are shown. Compared with other embodiments, the present embodiment converts the rotational motion into the linear motion without the need for additional Figure 2 The dimension in the X-axis direction shown reduces the space required for the vision detection device to reduce the space restrictions of the vision detection device, thereby achieving the technical effect of improving the ease of use of the vision detection device.

[0086] In addition, combined Figure 2 As shown, in this embodiment, the mobile device 3 includes:

[0087] The sliding structure 303 is connected between the transmission member 3023 and the plane mirror 2 . The sliding structure 303 is used to drive the plane mirror 2 to slide along with the rotation of the transmission member 3023 .

[0088] Based on this, driven by the sliding structure 303, the plane mirror 2 moves along the sliding structure 303, and the sliding structure 303 can limit the plane mirror 2 to move only along the sliding structure 303. Figure 2 The plane mirror 2 moves back and forth in the X-axis direction as shown, thereby achieving the technical effect of improving the stability of the movement of the plane mirror 2.

[0089] Preferably, the plane mirror 2 can be connected to both the transmission member 3023 and the sliding structure 303, which can increase the connection points between the plane mirror 2 and the transmission member 3023, avoid the failure of one connection point causing the plane mirror 2 to be unable to move, thereby improving the stability of the movement of the plane mirror 2, and further achieving the technical effect of improving the reliability of the movement of the plane mirror 2.

[0090] Specifically, the sliding structure 303 includes:

[0091] The guide member 3031 is disposed on one side of the transmission member 3023;

[0092] The sliding member 3032 is slidably connected to the guide member 3031 , the sliding member 3032 is fixedly connected to the transmission member 3023 , and the sliding member 3032 is fixedly connected to the plane mirror 2 .

[0093] Among them, the sliding member 3032 is mounted on the guide member 3031 to realize the sliding connection between the sliding member 3032 and the guide member 3031. The sliding member 3032 slides along the length direction of the guide member 3031, that is, along the X-axis direction, along the transmission member 3023, so that the sliding member 3032 drives the plane mirror 2 to move only along the X-axis direction, which can limit the moving direction of the plane mirror 2, so as to achieve the technical effect of improving the stability of the movement of the plane mirror 2.

[0094] As a convertible embodiment, the guide member 3031 may be provided with a slide groove extending along the X-axis direction, and the sliding member 3032 is provided in the slide groove and can slide along the slide groove.

[0095] As a convertible embodiment, the plane mirror 2 may be connected only to the sliding structure 303 .

[0096] Of course, in other embodiments, the sliding structure 303 may not be provided.

[0097] In other embodiments, when two transmission structures 302 are provided, two sliding structures 303 are also provided. Specifically, the other side of the transmission member 3023 in one transmission structure 302 is connected to the eye chart 1, and the other side of the transmission member 3023 in the other transmission structure 302 is connected to the plane mirror 2. The sliding member 3032 of one sliding structure 303 can be connected between the transmission member 3023 and the eye chart 1, and the sliding member 3032 of the other sliding structure 303 can be provided between the transmission member 3023 and the plane mirror 2, which can also achieve the technical effect of improving the stability of the movement of the plane mirror 2 and the eye chart 1.

[0098] In addition, in this embodiment, a plurality of vision scales are provided on the transmission member 3023, and when the moving device 3 drives the plane mirror 2 to move to a preset distance, the distance between the person to be tested and the vision chart presented by the plane mirror 2 corresponds to the value of the vision scale. That is, each stop position of the plane mirror 2 is preset, and the stop position of the plane mirror 2 corresponds to the value of the vision scale.

[0099] Of course, in other embodiments, when the moving device 3 drives the plane mirror 2 to move to a preset distance, the vision of the person to be tested can be converted by the distance between the person to be tested and the vision chart presented by the plane mirror 2. Compared with other embodiments, in this embodiment, the medical staff directly reads the vision scale of the person to be tested, and does not need to obtain the vision value of the person to be tested through conversion, thereby achieving the technical effect of improving the convenience of obtaining the vision value of the person to be tested.

[0100] In addition, in this embodiment, the mobile device 3 includes a housing 304, and the housing 304 includes a receiving cavity. The transmission structure 302 and the sliding structure 303 are both arranged in the receiving cavity, and the transmission structure 302 and the sliding structure 303 can be protected by the housing 304. Figure 1 The upper surface shown is provided with a groove connected to the outside, and the sliding member 3032 passes through the groove and is connected to the plane mirror 2, so that the plane mirror 2 can move along the length direction of the groove, and the moving direction of the plane mirror 2 can be limited.

[0101] Furthermore, in this embodiment, the vision scale is arranged on the surface of the transmission member 3023, and the font of the vision scale is arranged toward the direction of the person to be tested; when the moving device 3 drives the plane mirror 2 to move to a preset distance, the vision scale closest to the person to be tested is the vision value of the person to be tested.

[0102] The medical staff is located at the position of the vision chart 1 to test the vision of the person to be tested. Since the vision value of the person to be tested is lower than 0.1, the moving device 3 drives the plane mirror 2 to move to a preset distance, that is, the person to be tested can see the opening direction of the detection mark corresponding to the vision value of 0.1, and the plane mirror 2 stops moving. At this time, the vision scale closest to the person to be tested is the vision value of the person to be tested. Figure 2 The right side is provided with a visual acuity scale. Based on this, the medical staff can read the visual acuity scale through the slot in situ without moving the position to know the visual acuity value of the person to be tested, thereby achieving the technical effect of improving the convenience of detecting the visual acuity value of the person to be tested.

[0103] Combination Figure 2 As shown, since the transmission shape of the transmission member 3023 is annular, when the medical staff reads the vision scale, there is a possibility that both vision scales are closest to the person to be tested. Preferably, a mark can be provided on the upper surface of the guide member 3031. When the plane mirror 2 stops moving, the vision scale closest to the person to be tested and located on the same side as the mark is the vision value of the person to be tested. Based on this, there is no need to compare which vision scale among multiple vision scales is closest to the person to be tested, so as to achieve the technical effect of improving the accuracy of reading the vision scale value.

[0104] As a convertible embodiment, no marking may be provided on the surface of the guide member 3031.

[0105] Of course, in other embodiments, the position of the vision scale can also be adjusted according to the position of the transmission member 3023.

[0106] In other embodiments, a vision scale may be marked on the housing 304, and the vision scale corresponding to the position of the plane mirror 2 is the vision value of the person to be tested.

[0107] Of course, in other embodiments, when there are two moving devices 3, and the eye chart 1 and the plane mirror 2 move a preset distance, the distance between the person to be tested and the eye chart presented by the plane mirror 2 corresponds to the eye scale. Each time the moving device 3 drives the eye chart 1 and the plane mirror 2 to move, the distance is the preset value.

[0108] In addition, each time the moving device 3 drives the plane mirror 2 to move a preset distance, the technical effect of the convenience of setting the preset distance of the moving device 3 can be improved. Specifically, in this embodiment, the head of the person to be tested fits the vision chart 1, and based on the average distance between the human eye and the head, which is 0.2m, the farthest distance between the plane mirror 2 and the vision chart 1 is 2.4m, so that the distance between the person to be tested and the vision chart presented by the plane mirror 2 is adjusted to 5.0m. Furthermore, each time the moving device 3 drives the plane mirror 2 to move a distance of 0.25m, that is, the preset value is 0.25m. Based on this, the distances between the plane mirror 2 and the eye chart 1 are 2.6m, 2.35m, 2.1m, 1.85m, 1.6m, 1.35m, 1.1m, 0.85m and 0.6m respectively, and accordingly, the corresponding vision scales are 0.1, 0.09, 0.08, 0.07, 0.06, 0.05, 0.04, 0.03 and 0.02 respectively.

[0109] Of course, in other embodiments, the person to be tested may be spaced apart from the eye chart 1 , and the distance that the moving device 3 drives the plane mirror 2 to move each time may be adjusted according to the distance between the person to be tested and the eye chart 1 .

[0110] In this embodiment, the side of the mobile device 3 can be fixed on the wall. Of course, in other embodiments, the mobile device 3 can also be set on the ground. Compared with other embodiments, the mobile device 3 is fixed on the wall in this embodiment, which can improve the conspicuousness of the position of the mobile device 3 and prevent the person to be detected or other personnel from accidentally tripping over the mobile device 3. In this embodiment, by limiting the position of the mobile device 3, the technical effect of improving the safety of the vision detection device can be achieved.

[0111] In addition, in this embodiment, the vision detection device includes:

[0112] The lifting structure is connected to the eye chart 1, specifically arranged at the bottom of the eye chart 1, and is used to adjust the height of the detection mark on the detection line of the eye chart 1 to be at the same height as the line of sight of the person to be tested.

[0113] In this embodiment, the lifting structure may be an electric telescopic push rod.

[0114] Based on this, the medical staff drives the height of the detection mark corresponding to the vision value of 0.1 through the lifting structure to be at the same height as the line of sight of the person to be tested. When the person to be tested can clearly see the opening direction of the detection mark corresponding to 0.1, a normal vision test is performed, that is, the medical staff tests the person to be tested with detection marks at different heights, and the lifting structure drives the vision chart 1 to make the detection mark on the detection line of the vision chart 1 at the same height as the line of sight of the person to be tested, which can improve the accuracy of the distance between the person to be tested and the vision chart presented by the plane mirror 2, thereby achieving the technical effect of improving the accuracy of the vision value detection of the person to be tested.

[0115] As a convertible implementation, the lifting structure may also be a hydraulic cylinder.

[0116] Of course, in other embodiments, the lifting structure may not be provided.

[0117] In other embodiments, the distance that the moving device 3 drives the plane mirror 2 to move each time may be set to a preset value, or only a lifting structure may be provided.

[0118] In addition, in this embodiment, a button control device can be set on the shell 304, and the button control device includes a button unit and a control unit. The control unit is communicatively connected with the mobile device 3, and the movement of the mobile device 3 is controlled by driving the control unit through the button unit. That is, by pressing the button unit once, the mobile device 3 drives the plane mirror 2 to move to a preset distance.

[0119] The control unit and the mobile device 3 may be connected via a wired communication connection or a wireless signal communication connection, and the communication connection is a mature technology and will not be described in detail herein.

[0120] Of course, in other embodiments, a remote control structure may also be provided, such as a remote controller, and a button control device may be provided on the remote control structure, which can also realize the communication connection between the control unit and the mobile device 3. Medical staff may carry the remote control structure with them to drive the mobile device 3.

[0121] In addition, in this embodiment, an illumination structure is provided on the vision chart 1. The illumination structure can improve the brightness of the vision chart 1, and avoid the influence of insufficient light on the vision detection result, thereby achieving the technical effect of improving the accuracy of vision detection.

[0122] Furthermore, the light of the illumination structure is arranged toward the direction of the eye chart 1. For example, the illumination structure can be arranged at Figure 1 Above the eye chart 1 shown, the light of the illumination structure is emitted downward, and the emission direction of the light of the illumination structure is perpendicular to the line of sight of the person to be tested, so as to avoid the situation where the emission direction of the light of the illumination structure is parallel to the line of sight of the person to be tested, causing discomfort to the person to be tested.

[0123] As a changeable implementation, it is also possible that the light emission direction of the lighting structure can be adjusted.

[0124] According to an embodiment of the present invention, on the other hand, a vision detection method is also provided, which uses the above-mentioned vision detection device to perform vision detection;

[0125] The person to be tested is located between the plane mirror 2 and the eye chart 1. The medical staff is located close to the person to be tested, and the distance between the person to be tested and the eye chart presented by the plane mirror 2 is 5.0m, and the head of the person to be tested can be in contact with the eye chart 1;

[0126] Determine whether the person to be tested can clearly see the largest detection mark on the vision chart 1.

[0127] When the person to be tested cannot clearly see the maximum detection mark on the vision chart 1, the moving device 3 drives the plane mirror 2 to move until the person to be tested can clearly see the maximum detection mark on the vision chart 1. The maximum detection mark may be the detection mark corresponding to a vision value of 0.1.

[0128] Furthermore, before judging whether the person to be tested can clearly see the maximum detection mark on the vision chart 1, the vision detection method also includes:

[0129] The lifting structure drives the eye chart 1 to rise and fall, so that the height of the maximum detection mark on the eye chart 1 is at the same height as the sight line of the person to be tested;

[0130] After determining whether the person to be tested can clearly see the maximum detection mark on the vision chart 1, the vision testing method further includes:

[0131] When the person to be tested can clearly see the largest detection mark on the eye chart 1, the lifting structure drives the eye chart 1 to rise and fall, so that the height of the detection mark on the detection line of the eye chart 1 is at the same height as the line of sight of the person to be tested.

[0132] Based on this, the height of the detection mark on the detection row of the eye chart 1 can be at the same height as the line of sight of the person to be tested, which can improve the accuracy of the distance between the person to be tested and the eye chart presented by the plane mirror 2, thereby achieving the technical effect of improving the accuracy of the vision value detection of the person to be tested.

[0133] The moving device 3 drives the plane mirror 2 to move until the person to be tested can clearly see the maximum detection mark on the vision chart 1, which specifically includes: each time the moving device 3 drives the plane mirror 2 to move a distance that is a preset value.

[0134] Reading the vision value specifically includes: when the person to be tested can clearly see the maximum detection mark on the vision chart 1, the medical staff reads the vision scale of the transmission member 3023 closest to the person to be tested, which is the vision value of the person to be tested. Based on this, the medical staff does not need to move, and can read the vision scale in situ to know the vision value of the person to be tested, thereby achieving a technical effect of improving the convenience of detecting the vision value of the person to be tested.

[0135] Specifically, combined Figure 3 As shown, the specific process of the vision detection method is as follows:

[0136] The person to be tested is located at a position where his / her head is fitted with the eye chart 1, and the person to be tested is tested through the eye chart presented by the plane mirror 2. The medical staff adjusts the height of the eye chart 1 through the lifting structure so that the height of the maximum detection mark on the eye chart 1 is at the same height as the line of sight of the person to be tested;

[0137] When the person to be tested can clearly see the largest detection mark on the eye chart 1, the lifting structure drives the eye chart 1 to rise and fall, so that the height of the detection mark on the detection row of the eye chart 1 is at the same height as the line of sight of the person to be tested, and the vision of the person to be tested is tested, and a normal vision test is performed on the person to be tested.

[0138] When the person to be tested cannot clearly see the maximum detection mark on the eye chart 1, the height of the maximum detection mark on the eye chart 1 is kept at the same height as the line of sight of the person to be tested, and the medical staff drives the plane mirror 2 to move towards the person to be tested through the moving device 3, with each movement distance being 0.25m, until the person to be tested can clearly see the opening direction of the detection mark corresponding to the vision value of 0.1.

[0139] The medical staff reads the vision scale closest to the person to be tested among the multiple vision scales at this time. The vision scale is the vision value of the person to be tested, and the vision test is completed.

[0140] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A vision detection device, characterized in that: include: Eye chart (1); A plane mirror (2) is arranged at a distance from the eye chart (1), an imaging surface of the plane mirror (2) is arranged opposite to the eye chart (1), a person to be tested is located between the eye chart (1) and the plane mirror (2), and is used to perform vision testing using the eye chart presented by the plane mirror (2); A mobile device (3), wherein the mobile device (3) is connected to both the eye chart (1) and the plane mirror (2), or the mobile device (3) is connected to the plane mirror (2), and is used to adjust the distance between the person to be tested and the eye chart presented by the plane mirror (2).

2. The vision detection device according to claim 1, characterized in that: The mobile device (3) comprises: A driving structure (301); A transmission structure (302) is connected to the driving structure (301), one side of the transmission structure (302) is connected to the eye chart (1) and the plane mirror (2), and is used to drive the eye chart (1) and the plane mirror (2) to move under the drive of the driving structure (301), or one side of the transmission structure (302) is connected to the plane mirror (2), and is used to drive the plane mirror (2) to move under the drive of the driving structure (301).

3. The vision detection device according to claim 2, characterized in that: The driving structure (301) is rotationally connected to the transmission structure (302), and the driving structure (301) has an output shaft; The transmission structure (302) comprises: A first rotating member (3021) connected to the output shaft; A second rotating member (3022) is spaced apart from the first rotating member (3021); A transmission member (3023) has one side connected to both the first rotating member (3021) and the second rotating member (3022), and the other side connected to both the eye chart (1) and the plane mirror (2), or the other side connected to the plane mirror (2).

4. The vision detection device according to claim 3, characterized in that: The mobile device (3) comprises: a sliding structure (303) connected between the transmission member (3023) and the eye chart (1) and between the transmission member (3023) and the plane mirror (2), the sliding structure (303) being used to drive the eye chart (1) and the plane mirror (2) to slide along with the rotation of the transmission member (3023); Alternatively, the sliding structure (303) is connected between the transmission member (3023) and the plane mirror (2), and the sliding structure (303) is used to drive the plane mirror (2) to slide as the transmission member (3023) rotates.

5. The vision detection device according to claim 4, characterized in that: The sliding structure (303) comprises: A guide member (3031) is provided on one side of the transmission member (3023); A sliding member (3032) is slidably connected to the guide member (3031), the sliding member (3032) is fixedly connected to the transmission member (3023), the sliding member (3032) is fixedly connected to the eye chart (1) and the plane mirror (2), or the sliding member (3032) is fixedly connected to the plane mirror (2).

6. The vision detection device according to any one of claims 3 to 5, characterized in that: The transmission member (3023) is provided with a plurality of vision scales. When the moving device (3) drives the vision chart (1) and the plane mirror (2) to move a preset distance, or when the moving device (3) drives the plane mirror (2) to move a preset distance, the distance between the person to be tested and the vision chart presented by the plane mirror (2) corresponds one-to-one to the value of the vision scale.

7. The vision detection device according to claim 6, characterized in that: The vision scale is arranged on the surface of the transmission member (3023), and the font of the vision scale is arranged toward the direction of the person to be tested; When the moving device (3) drives the vision chart (1) and the plane mirror (2) to move a preset distance, or when the moving device (3) drives the plane mirror (2) to move a preset distance, the vision scale closest to the person to be tested is the vision value of the person to be tested.

8. The vision detection device according to any one of claims 1 to 5, characterized in that: Each time the moving device (3) drives the eye chart (1) and the plane mirror (2) to move, the distance is a preset value; or each time the moving device (3) drives the plane mirror (2) to move, the distance is a preset value; And / or, the vision detection device comprises: A lifting structure is connected to the eye chart (1) and is used to adjust the height of the detection mark on the detection line of the eye chart (1) to be at the same height as the sight line of the person to be tested.

9. A method for visual acuity detection, characterized in that: Using the vision detection device described in any one of claims 1 to 8 for detection; The person to be tested is located between the plane mirror (2) and the eye chart (1); Determining whether the person to be tested can clearly see the maximum detection mark on the vision chart (1); When the person to be tested cannot clearly see the maximum detection mark on the eye chart (1), the moving device (3) drives the plane mirror (2) to move, or the moving device (3) drives the eye chart (1) and the plane mirror (2) to move until the person to be tested can clearly see the maximum detection mark on the eye chart (1).

10. The method for visual acuity detection according to claim 9, characterized in that: Before judging whether the subject to be tested can clearly see the maximum detection mark on the vision chart (1), the method further comprises: The lifting structure drives the eye chart (1) to rise and fall, so that the height of the maximum detection mark on the eye chart (1) is at the same height as the sight line of the person to be tested; and / or, After judging whether the person to be tested can clearly see the maximum detection mark on the vision chart (1), the method further includes: When the person to be tested can clearly see the largest detection mark on the eye chart (1), the lifting structure drives the eye chart (1) to rise and fall, so that the height of the detection mark on the detection line of the eye chart (1) is at the same height as the line of sight of the person to be tested.

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