View measuring device

Abstract

The utility model provides an observation device, the observation device includes: shell, optical lens, object module, circuit board subassembly, guide rail, be equipped with said optical lens on said shell, said optical lens with object module parallel arrangement, object module with circuit board subassembly electric connection, said guide rail is equipped with said guide rail, said guide rail is equipped with said guide rail, said guide rail is equipped with said guide rail. The real object module is movably arranged on the guide rail, and the optical axis of the optical lens is parallel to the direction of the guide rail; in the using process, a user observes the real object module through the optical lens, carries out vision testing, moves the real object module on the guide rail till the sight line is clear and determines the moving distance of the real object module when the sight line is clear, and the circuit board assembly outputs vision data of the user according to the moving distance. According to the utility model, the problems of large size, long testing time and inconvenience in carrying of the existing testing device can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a vision measuring device. Background Art

[0002] With the development of society, people pay more and more attention to the protection of eyes, so there are more and more related testing instruments for eyesight. For the traditional eyesight examination, a vision tester is usually used for preliminary examination, and the vision tester integrates various advantages such as precision, convenience, and versatility. At present, the eyesight test methods are all based on the adjustment of the diopter of the device, and the device has a large volume, a long test time, and is not convenient to carry around. Content of the Utility Model

[0003] The utility model provides a vision measuring device, specifically a vision measuring device with a small volume, a light weight, and a simple test method.

[0004] In a first aspect, the utility model provides a vision measuring device, which includes: a housing, an optical lens, a physical module, a circuit board assembly, and a guide rail. The optical lens is installed on the housing, the optical lens is arranged in parallel with the physical module, the physical module is electrically connected to the circuit board assembly, the physical module is movably arranged on the guide rail, and the optical axis of the optical lens is parallel to the direction of the guide rail. Wherein, during use, the user observes the physical module through the optical lens to perform an eyesight test, moves the physical module on the guide rail until the line of sight is clear, determines the moving distance of the physical module when the line of sight is clear, and the circuit board assembly outputs eyesight data of the user according to the moving distance.

[0005] Optionally, the housing includes a first housing, a second housing, and at least one positioning post, and the first housing and the second housing are oppositely arranged through the positioning post.

[0006] Optionally, at least one key hole position, an optical lens hole, a speaker hole, and a display screen display area are arranged on the first housing. The test device further includes a speaker, and the speaker is installed on the speaker hole, and the optical lens is installed in the optical lens hole.

[0007] Optionally, a battery compartment, a motor compartment, a light source, and a lead screw are arranged on the second housing. The test device further includes a motor, and the motor is installed in the motor compartment. The motor is drivingly connected to the physical module through the lead screw, the physical module is movably arranged on the lead screw, and the lead screw is arranged in parallel with the movable direction of the guide rail.

[0008] Optionally, the optical lens includes a first optical lens and a second optical lens, the optical lens holes include a first optical lens hole and a second optical lens hole, the first optical lens is installed in the first optical lens hole, and the second optical lens is installed in the second optical lens hole.

[0009] Optionally, the circuit board assembly includes at least one key switch, a backlight board, a display screen, and an MCU. The key switch is electrically connected to the MCU, the MCU is electrically connected to the display screen, the backlight board is installed at one end of the display screen, and the MCU is installed on the side blocked by the display screen; the key switch is installed on the key hole position, and the display screen is installed on the display area of the display screen.

[0010] Optionally, the key switch includes a power-on key, a switching key, a sound key, a backward key, a forward key, and a confirmation key; the power-on key is used to turn on and off the device, the switching key is used to visually switch between the first optical lens and the second optical lens, the sound key is used to control the sound, the backward key is used to control the backward movement of the physical module, the forward key is used to control the forward movement of the physical module, and the confirmation key is used to execute the instructions after the operations of the switching key, the sound key, the backward key, and the forward key.

[0011] In a second aspect, the present invention provides a vision testing method, which is applied to the vision testing device according to any one of the embodiments of the present invention. The method includes:

[0012] During use, the user observes the image of the physical module through the optical lens to perform vision testing;

[0013] In the vision test, move the physical module on the guide rail until the image of the physical module is clear in sight to obtain a clear image of the physical module;

[0014] According to the clear image of the physical module, determine the moving distance of the physical module when the line of sight is clear;

[0015] Based on the moving distance, the circuit board assembly outputs the vision data of the user.

[0016] Optionally, the method further includes:

[0017] Before the testing device leaves the factory, select vision testers with different visions;

[0018] Visual acuity tests are performed on the test device according to different visual acuities, the moving distances of the physical modules in different visual acuities are determined, and the moving distances of the physical modules in different visual acuities are used as the reference points for different visual acuities in the visual acuity test device, and the reference points for different visual acuities are stored in the database.

[0019] Optionally, based on the moving distance, the circuit board assembly outputs the visual acuity data of the user, including:

[0020] According to the moving distance of the physical module when the line of sight is clear, the circuit board assembly determines the reference point corresponding to the moving distance of the physical module in the database;

[0021] Based on the corresponding reference point, the visual acuity data of the user is output.

[0022] In the present utility model, the visual acuity test device includes: a housing, an optical lens, a physical module, a circuit board assembly, and a guide rail. The optical lens is installed on the housing, the optical lens is arranged in parallel with the physical module, the physical module is electrically connected to the circuit board assembly, the physical module is movably arranged on the guide rail, and the optical axis of the optical lens is parallel to the direction of the guide rail; wherein, during use, the user observes the physical module through the optical lens to perform a visual acuity test, moves the physical module on the guide rail until the line of sight is clear, determines the moving distance of the physical module when the line of sight is clear, and the circuit board assembly outputs the visual acuity data of the user according to the moving distance, which can solve the problems of the existing visual acuity test device being large in volume, long in test time, and not convenient to carry around. Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0024] Figure 1 is the overall structure diagram of a visual acuity test device provided by the present utility model;

[0025] Figure 2 is the structural schematic diagram of a first housing provided by the present utility model;

[0026] Figure 3 is another structural schematic diagram of a first housing provided by the present utility model;

[0027] Figure 4 is another structural schematic diagram of a first housing provided by the present utility model;

[0028] Figure 5 is a schematic structural diagram of a second housing provided by the present utility model;

[0029] Figure 6 is another schematic structural diagram of a second housing provided by the present utility model;

[0030] Figure 7 is a schematic structural diagram of a circuit board assembly provided by the present utility model;

[0031] Figure 8 is another schematic structural diagram of a circuit board assembly provided by the present utility model;

[0032] Figure 9 is another schematic structural diagram of a circuit board assembly provided by the present utility model;

[0033] Figure 10 is a schematic structural diagram of another circuit board assembly provided by the present utility model;

[0034] Figure 11 is a structural diagram of a key switch provided by the present utility model;

[0035] Figure 12 is a schematic flow diagram of a vision test method provided by the present utility model;

[0036] Figure 13 is a schematic diagram of determining a reference point provided by the present utility model;

[0037] Figure 14 is a schematic diagram of another vision test method provided by the present utility model;

[0038] Figure 15 is a display screen display picture provided by the present utility model;

[0039] Figure 16 is a physical module diagram provided by the present utility model;

[0040] Figure 17 is another display screen display picture provided by the present utility model;

[0041] Figure 18 is a right eye vision test chart provided by the present utility model;

[0042] Figure 19 is another display screen display picture provided by the present utility model;

[0043] Figure 20 is a left eye vision test chart provided by the present utility model;

[0044] Figure 21It is the normal vision display diagram provided by the present utility model;

[0045] Figure 22 It is the low battery prompt diagram of the vision measuring device provided by the present utility model.

[0046] Among them, 10 is the housing; 110 is the first housing; 111 is the keyhole position; 112 is the optical lens hole; 113 is the speaker hole, 114 is the display screen display area; 120 is the second housing; 121 is the battery compartment; 122 is the motor compartment; 123 is the light source; 124 is the lead screw; 125 is the power connector; 126 is the fixing column; 130 is the positioning column; 20 is the optical lens; 210 is the first optical lens; 220 is the second optical lens; 30 is the physical module; 40 is the circuit board assembly; 410 is the key switch; 411 is the power-on key; 412 is the switching key; 413 is the sound key; 414 is the backward key; 415 is the forward key; 416 is the confirmation key; 420 is the backlight board; 430 is the display screen; 440 is the MCU; 450 is the connector; 50 is the guide rail; 60 is the speaker; 70 is the motor. Detailed implementation manners

[0047] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0048] As Figure 1 shown, Figure 1 It is the overall structure diagram of a vision measuring device provided by the utility model. The vision measuring device includes: a housing 10, an optical lens 20, a physical module 30, a circuit board assembly 40, and a guide rail 50. The optical lens 20 is installed on the housing 10. The optical lens 20 is arranged in parallel with the physical module 30. The physical module 30 is electrically connected to the circuit board assembly 40. The physical module 30 is movably arranged on the guide rail 50. The optical axis of the optical lens 20 is parallel to the direction of the guide rail 50. Among them, during use, the user observes the physical module 30 through the optical lens 20 to perform a vision test. The physical module 30 is moved on the guide rail 50 until the line of sight is clear, and the moving distance of the physical module 30 when the line of sight is clear is determined. The circuit board assembly 300 outputs the vision data of the user according to the moving distance.

[0049] In the present utility model, the above-mentioned housing 10 is the outer shell for supporting and protecting other components.

[0050] The above-mentioned optical lens is installed on the housing 10 for converging light so that the user can see the physical module 30.

[0051] The above physical module 30 can be understood as the target object for vision testing, which can be a picture, specifically an animal picture, a landscape picture, a digital picture, etc.

[0052] The above circuit board assembly 40 is used to control the movement of the physical module 30 on the guide rail 50 and can output the vision data of the user according to the moving distance of the physical module 30.

[0053] The above vision data refers to the diopter of the user's eyes.

[0054] The above guide rail 50 is used to support the physical module 30, so that the physical module 30 can move in the optical axis direction of the optical lens 20. The physical module 30 is installed on the guide rail 50 and can slide along the guide rail 50 for the user to adjust the line of sight.

[0055] The parallelism between the optical axis of the optical lens and the direction of the guide rail 50 can ensure that the optical lens is always focused on the physical module 30.

[0056] In the present utility model, through the housing, the optical lens, the physical module, the circuit board assembly, and the guide rail, the optical lens is installed on the housing, the optical lens is arranged in parallel with the physical module, the physical module is electrically connected to the circuit board assembly, the physical module is movably arranged on the guide rail, and the optical axis of the optical lens is parallel to the direction of the guide rail; wherein, during use, the user observes the physical module through the optical lens for vision testing, moves the physical module on the guide rail until the line of sight is clear, determines the moving distance of the physical module when the line of sight is clear, and the circuit board assembly outputs the vision data of the user according to the moving distance, which can solve the problems that the existing vision testing device has a large volume, a long testing time, and is not convenient to carry around.

[0057] Optionally, the housing 10 includes: a first housing 110, a second housing 120, and at least one positioning post 130. The first housing 110 and the second housing 120 are oppositely arranged through the positioning post 130.

[0058] In the present utility model, the above first housing 110 can be understood as the upper outer housing of the testing device, and the second housing 120 can be understood as the lower outer housing of the testing device.

[0059] The above positioning post 130 is used to fixedly connect the first housing 110 and the second housing 120 together.

[0060] The above at least one positioning post 130 can be understood as one or more positioning posts 130 for fixing the first housing 110 and the second housing 120. Specifically, the above positioning post 130 can be four positioning posts 130.

[0061] Optionally, at least one key hole 111, an optical lens hole 112, a speaker hole 113, and a display screen display area 114 are provided on the first housing 110. The testing device further includes a speaker 60, the speaker 60 is installed on the speaker hole 113, and the optical lens 20 is installed in the optical lens hole 112.

[0062] In the present utility model, the above-mentioned at least one key hole 111 can be understood as one or more holes for placing keys. The above-mentioned speaker 60 is used for playing sound.

[0063] As Figures 2 - 4 shown, Figure 2 is a schematic structural diagram of a first housing provided by the present utility model, Figure 3 is another schematic structural diagram of a first housing provided by the present utility model, Figure 4 is another schematic structural diagram of a first housing provided by the present utility model. Specifically, key holes 111, an optical lens hole 112, a display screen display area 113, and a speaker hole 114 are provided on the first housing 110. The testing device further includes a speaker 60, the speaker 60 is installed on the speaker hole 113, and the optical lens 20 is installed in the optical lens hole 112.

[0064] Optionally, a battery compartment 121, a motor compartment 122, a light source 123, and a lead screw 124 are provided on the second housing 120. The testing device further includes a motor 70, the motor 70 is installed in the motor compartment 122, the motor 70 is drivingly connected to the physical module 30 through the lead screw 124, the physical module 30 is movably arranged on the lead screw 124, and the lead screw 124 is arranged parallel to the movable direction of the guide rail 50.

[0065] In the present utility model, the above-mentioned battery compartment 121 is used for storing a battery, and the battery is used to provide power for the device to use.

[0066] As Figures 5 - 6 shown, Figure 5 is a schematic structural diagram of a second housing provided by the present utility model, Figure 6 is another schematic structural diagram of a second housing provided by the present utility model. Specifically, a battery compartment 121, a motor compartment 122, a light source 123, and a lead screw 124 are provided on the second housing 120. The testing device further includes a motor 70, the motor 70 is installed in the motor compartment 122, the motor 70 is drivingly connected to the physical module 30 through the lead screw 124, the physical module 30 is movably arranged on the lead screw 124, and the lead screw 124 is arranged parallel to the movable direction of the guide rail 50. A power connector 125 is further provided on the second housing 120.

[0067] Optionally, the optical lens 20 includes a first optical lens 210 and a second optical lens 220. The optical lens holes 112 include a first optical lens hole 1121 and a second optical lens hole 1122. The first optical lens 210 is installed in the first optical lens hole 1121, and the second optical lens 220 is installed in the second optical lens hole 1122.

[0068] In the present utility model, the first optical lens 210 may be a left-eye optical lens, the second optical lens 220 may be a right-eye optical lens, the first optical lens hole 1121 is a left-eye optical lens hole, and the second optical lens hole 1122 is a right-eye optical lens hole.

[0069] The two optical lenses are respectively installed in their respective optical lens holes for convenient subsequent use.

[0070] Optionally, the circuit board assembly 40 includes at least one key switch 410, a backlight board 420, a display screen 430, and an MCU 440. The key switch is electrically connected to the MCU 440, the MCU 440 is electrically connected to the display screen 430. The backlight board 420 is installed at one end of the display screen 430, and the MCU 440 is installed on the side blocked by the display screen 430; the key switch 410 is installed on the key hole position 111, and the display screen 430 is installed on the display screen display area 114.

[0071] In the present utility model, the above key switch 410 is used to input control signals, for example, operations such as power on, power off, and device adjustment.

[0072] The above backlight board 420 is installed at one end of the display screen 430 to provide a light source so that the display screen can also display images in a dim light environment.

[0073] The above display screen 430 is used to display various information, such as left-eye vision data, right-eye vision data, and other information.

[0074] The above MCU (microcontroller) is a special microcomputer system that integrates components such as a central processing unit, a memory, and an input / output interface on a single chip, realizing the integration of information processing and control. The MCU is small, low-power, and has a high degree of integration, making it particularly suitable for applications in embedded systems and Internet of Things devices.

[0075] The MCU 440 is the central processing unit of the vision measurement device, responsible for receiving and processing input information from the key switch, controlling the display content of the display screen, and controlling the motor to drive the guide rail 50 so that the physical module 30 moves back and forth on the guide rail 50.

[0076] As Figures 7 - 10 shown, Figure 7 is a schematic structural diagram of a circuit board assembly provided by the present utility model. Figure 8It is a schematic structural diagram of another circuit board assembly provided by the present utility model. Figure 9 It is a schematic structural diagram of another circuit board assembly provided by the present utility model. Figure 10 It is a schematic structural diagram of another circuit board assembly provided by the present utility model. Specifically, the circuit board assembly 40 includes at least one key switch 410, a backlight board 420, a display screen 430, and an MCU 440. The key switch 410 is electrically connected to the MCU 440, the MCU 440 is electrically connected to the display screen 430, the backlight board 420 is installed at one end of the display screen 430, and the MCU 440 is installed on the side blocked by the display screen 430; the key switch 410 is installed on the key hole position 111, and the display screen 430 is installed on the display area 114 of the display screen. The above-mentioned circuit board assembly 40 is further provided with a connector 450, and the connector 450 is used to connect two active devices to facilitate the transmission of current or signals. The key switch 410 is connected to the MCU 440 through the connector 450, the MCU 440 is connected to the power supply through the connector 450, the MCU 440 is connected to the speaker 600 through the connector 450, the MCU 440 is connected to the motor 70 through the connector 450, and the MCU 440 is connected to the display screen 430 through the connector 450.

[0077] It should be noted that the second housing 120 is further provided with fixing posts 126, and the second housing 120 and the circuit board assembly 40 are fixedly connected through the fixing posts 126.

[0078] Optionally, the key switch 410 includes a power-on key 411, a switching key 412, a sound key 413, a backward key 414, a forward key 415, and a confirmation key 416; the power-on key 411 is used to power on and off, the switching key 412 is used for visual switching between the first optical lens 210 and the second optical lens 220, the sound key 413 is used for sound control, the backward key 414 is used for controlling the backward movement of the physical module 30, the forward key 415 is used for controlling the forward movement of the physical module 30, and the confirmation key 416 is used to execute the instructions after the operations of the switching key 412, the sound key 413, the backward key 414, and the forward key 415.

[0079] As Figure 11 shown, Figure 11It is a structural diagram of the key switch provided by the present utility model. Specifically, the key switch 410 includes a power-on key 411, a switching key 412, a sound key 413, a backward movement key 414, a forward movement key 415, and a confirmation key 416; the power-on key 411 is used for power-on and power-off, the switching key 412 is used for visually switching between the first optical lens 210 and the second optical lens 220, the sound key 413 is used for sound control, the backward movement key 414 is used for controlling the backward movement of the physical module 30, the forward movement key 415 is used for controlling the forward movement of the physical module 30, and the confirmation key 416 is used to execute the instructions after the operations of the switching key 412, the sound key 413, the backward movement key 414, and the forward movement key 415.

[0080] As Figure 12 shown, Figure 12 It is a schematic flowchart of a vision test method provided by the present utility model. The vision test method is applied to the vision test device as described in any one of the present utility model, and the vision test method includes the following steps:

[0081] 1201. During use, the user observes the physical module image through the optical lens for vision testing.

[0082] 1202. During the vision test, move the physical module on the guide rail until the line of sight of the physical module image is clear to obtain a clear physical module image.

[0083] 1203. Based on the clear physical module image, determine the moving distance of the physical module when the line of sight is clear.

[0084] 1204. Based on the moving distance, the circuit board assembly outputs the user's vision data.

[0085] In the embodiment of the present utility model, the above vision data can be understood as the vision degree.

[0086] In the embodiment of the present utility model, during the vision test, the tester's eyes observe the physical module image through the optical lens, move the physical module on the guide rail until the line of sight of the physical module image is clear, determine the moving distance of the physical module when the line of sight is clear, the circuit board assembly receives the moving distance of the physical module, and outputs the vision degree corresponding to the moving distance according to the moving distance of the physical module.

[0087] Optionally, the method further includes: before the vision test device leaves the factory, select vision testers with different visions; conduct vision tests on the vision test device according to the vision testers with different visions, determine the moving distances of the physical module in different visions, use the moving distances of the physical module in different visions as the reference points for different visions in the vision test device, and store the reference points for different visions in the database.

[0088] In the embodiments of the present utility model, the above-mentioned viewers with different visual acuities refer to testers with different myopia degrees. They can be people with myopia degrees of 50, 100, 125, 150, etc. They can also be people with hyperopia degrees of 50, 100, 125, 150, etc.

[0089] The above database is used to store the moving distances of the physical modules in different visual acuities and the corresponding reference points.

[0090] Before leaving the factory, it is necessary to select viewers with different visual acuities from the crowd as test subjects. The visual acuity levels of the test subjects include different situations such as normal vision, myopia, and hyperopia. Testers with different visual acuities respectively use the vision testing device to conduct vision tests. During the vision testing process, the tester observes the image in the physical module through the optical lens, moves the physical module on the guide rail until the image in the physical module is clear, and determines the reference point of the tester's vision according to the moving distance of the physical module when the image is clear.

[0091] For example, the visual acuity of the tester is 5.0 and the myopia degree is 0. During the vision testing process, the tester observes the image in the physical module from point A through the optical lens, moves the physical module on the guide rail until the image in the physical module is clear, and determines the moving distance L of the physical module when the image is clear as the reference point for a visual acuity of 5.0 and a myopia degree of 0. The visual acuity of the tester is 4.0 and the myopia degree is 600. During the testing process, the tester observes the image in the physical module from point A through the optical lens, moves the physical module on the guide rail until the image in the physical module is clear, and determines the moving distance E of the physical module when the image is clear as the reference point for a visual acuity of 4.0 and a myopia degree of 600. And so on, conduct vision tests on testers with different visual acuities, and determine the reference points of each visual acuity in the testing device.

[0092] It should be noted that for testers with different myopia degrees, the more severe the myopia degree, the closer the physical module observed is to the optical lens.

[0093] Figure 13It is the reference point diagram provided by the present utility model. Specifically, point A is a fixed position, which is the viewing position of the viewer's eyes; point B is the fixed position of the optical lens, and point L is the position where the physical module can move back and forth, serving as a reference base number. A viewer with a visual acuity of 5.0 and 0 degrees of myopia can be found, and the position where the viewer can see the physical object very clearly is marked as the reference point; then a viewer with a visual acuity of 4.0 and 600 degrees of myopia is found, and the physical object pattern is moved to make this person see most clearly, and the clearest position is used as the second reference point. And so on, viewers with different myopia degrees such as 500 degrees, 400 degrees, 300 degrees, 200 degrees, and 100 degrees are respectively found to determine the reference points for each myopia degree. Through the above method, the reference points for each myopia degree can be obtained, which are converted into corresponding visual acuity data and eye myopia degrees by software, and these data are stored in the database.

[0094] Optionally, in the step of the circuit board assembly outputting the user's visual acuity data based on the moving distance, the circuit board assembly can determine the reference point corresponding to the moving distance of the physical module in the database according to the moving distance of the physical module when the line of sight is clear; based on the corresponding reference point, the user's visual acuity data is output.

[0095] In the embodiment of the present utility model, the above database stores the reference points for each myopia degree and the corresponding eye myopia degrees for each reference point.

[0096] The reference point corresponding to the moving distance of the physical module when the viewer's line of sight is clear can be found in the database, and the viewer's eye visual acuity data can be determined according to the corresponding reference point.

[0097] Such as Figure 14 shown, Figure 14 It is a schematic diagram of another visual acuity test method provided by the present utility model. Specifically, during the viewing process, the eyes observe the image in the physical module through the optical lens. When the image in the physical module cannot be focused through the optical lens and the eyes, the image in the physical module is blurred. When the physical module is moved and just focused through the optical lens and the eyes, the image in the physical module is clear. According to the moving distance of the physical module when the image is clear, the eye myopia degree is determined in the database. The present utility model can quickly find the focus of the physical module by moving the physical module and quickly calculate the myopia degree.

[0098] In one embodiment, the function keys of the vision measuring device of the present utility model include: a power-on key, a left-right switching key, an OK key, a sound key, a backward key, and a forward key; the power-on key is used to turn on and turn off the device, the left-right switching key is used to visually switch between the left and right optical lenses, the sound key is used to control the sound, the backward key is used to control the backward movement of the physical module, the forward key is used to control the forward movement of the physical module, and the OK key is used to execute the instructions after the operations of the switching key, the sound key, the backward key, and the forward key.

[0099] During the operation of the vision measuring device of the present utility model, press the power-on key once, and the device will be turned on; press the power-on key again, and the device will be turned off. When the device is turned on, the display screen shows a picture, as Figure 15 shown. Figure 15 Figure is a picture of the display screen provided by the present utility model.

[0100] Figure 16 Figure is a physical module diagram provided by the present utility model. During the vision test, the user holds the vision measuring device horizontally with both hands, places the fingers on the corresponding key positions, and observes the physical module image through the optical lenses with both eyes. At this time, if the physical module image is in a blurred state ( Figure 16 as shown in Figures b, c, d, e, f in the figure, Figures b, c, d, e, f are in a relatively blurred state of the image), then the user adjusts the focus of the physical module by pressing the backward key and the forward key. When the image is the clearest ( Figure 16 as shown in Figure a in the figure, Figure a is the clearest state), press the OK key, and the display screen shows the vision test result.

[0101] It should be noted that during the test, the present utility model defaults to testing the right eye first, as Figure 17 shown. Figure 17 Figure is another picture of the display screen provided by the present utility model. Specifically, during the vision test, the user holds the vision measuring device horizontally with both hands, observes the physical module image through the optical lens with the right eye. If the physical module image is in a blurred state, the user adjusts the focus of the physical module by pressing the backward key and the forward key. When the image is the clearest, press the OK key, and the device will give a voice prompt: "Testing, please wait a moment." After the voice prompt, the display screen shows the vision test result, as Figure 18 shown. Figure 18 Figure is a right eye vision test diagram provided by the present utility model. Specifically, the right eye vision is 4.5 and the myopia is 325 degrees. If it is necessary to retest the right eye, quickly press the forward key twice, and the right eye can be retested.

[0102] Furthermore, after the right eye vision test is completed, if it is necessary to test the left eye, press the left-right switching key, and the left eye vision test can be performed. As Figure 19 shown.Figure 19 This is another display screen display picture provided by the present utility model. Specifically, during the vision test, the user holds the vision testing device firmly with both hands horizontally. The left eye looks through the optical lens at the real object module image. If the real object module image is blurred, the user can adjust the focus of the real object module by pressing the backward movement button and the forward movement button with fingers. When the image is clearest, press the confirmation button. The vision testing device will give a voice prompt: "Testing, please wait a moment." After the voice prompt, the display screen shows the vision test result, such as Figure 20 shown Figure 20 This is the left eye vision test chart provided by the present utility model. Specifically, the left eye vision is 4.3 and the myopia is 405 degrees. If it is necessary to retest the left eye, quickly press the forward movement key twice, and the left eye can be retested. After the left eye vision test is completed, if it is necessary to test the right eye, press the left-right switching key, and the right eye vision test can be carried out.

[0103] Such as Figure 21 shown Figure 21 This is the normal vision display chart provided by the present utility model. Specifically, during the vision test, the user holds the vision testing device firmly with both hands horizontally, places the fingers on the positions of the corresponding buttons, and the left eye looks through the optical lens at the real object module image. At this time, the real object module image is in a clear state, so there is no need to perform forward or backward movement operations on the real object module. The left eye vision is 5.0 and the myopia is 0 degree, indicating normal vision. If it is necessary to retest the left eye, quickly press the forward movement key twice, and the left eye can be retested. After the left eye vision test is completed, if it is necessary to test the right eye, press the left-right switching key, and the right eye vision test can be carried out.

[0104] Such as Figure 22 shown Figure 22 This is the low battery prompt chart of the vision testing device provided by the present utility model. Specifically, when the battery power of the present utility model is low, a battery icon flashes on the display screen and a voice prompt is given: "Low battery, please charge in time."

[0105] In the present utility model, the standby time of the display screen of the present utility model is defaulted to 40 seconds; if it is used for 5 minutes, the present utility model will automatically shut down; the present utility model is defaulted to Chinese voice, and the voice is defaulted to be turned on when starting up. Press the sound key once to turn off the voice, and press it again to turn on the voice; after each vision test of a set of data, the motor of the present utility model will automatically return to its original position. During the vision test of the present utility model, if it is necessary to retest, quickly press the forward movement key twice. Before the test of the present utility model, it is necessary to ensure that the optical lens is clean, free of grease and water mist. During normal maintenance, please clean the lens with alcohol to keep the optical lens clean, free of grease and water mist.

[0106] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A viewing device, characterized in that, The vision testing device includes: a housing (10), an optical lens (20), a physical object module (30), a circuit board assembly (40), and a guide rail (50). The optical lens (20) is mounted on the housing (10). The optical lens (20) is arranged in parallel with the physical object module (30). The physical object module (30) is electrically connected to the circuit board assembly (40). The physical object module (30) is movably arranged on the guide rail (50). The optical axis of the optical lens (20) is parallel to the direction of the guide rail (50). Among them, during use, the user observes the physical object module (30) through the optical lens (20) to perform vision testing. The physical object module (30) is moved on the guide rail (50) until the line of sight is clear, and the moving distance of the physical object module (30) when the line of sight is clear is determined. The circuit board assembly (40) outputs vision data of the user according to the moving distance.

2. The viewing device according to claim 1, characterized in that, The housing (10) includes a first housing (110), a second housing (120), and at least one positioning post (130). The first housing (110) and the second housing (120) are arranged opposite to each other through the positioning post (130).

3. The viewing device according to claim 2, characterized in that, At least one key hole position (111), an optical lens hole (112), a speaker hole (113), and a display screen display area (114) are provided on the first housing (110). The testing device further includes a speaker (60). The speaker (60) is mounted on the speaker hole (113). The optical lens (20) is mounted in the optical lens hole (112).

4. The visual inspection device according to claim 3, characterized in that, A battery compartment (121), a motor compartment (122), a light source (123), and a lead screw (124) are provided on the second housing (120). The testing device further includes a motor (70). The motor (70) is mounted in the motor compartment (122). The motor (70) is drivingly connected to the physical object module (30) through the lead screw (124). The physical object module (30) is movably arranged on the lead screw (124). The lead screw (124) is arranged in parallel with the movable direction of the guide rail (50).

5. The visual inspection device according to claim 3 or 4, characterized in that, The optical lens (20) includes a first optical lens (210) and a second optical lens (220). The optical lens hole (112) includes a first optical lens hole (1121) and a second optical lens hole (1122). The first optical lens (210) is mounted in the first optical lens hole (1121). The second optical lens (220) is mounted in the second optical lens hole (1122).

6. The visual inspection device according to claim 5, characterized in that The circuit board assembly (40) includes at least one key switch (410), a backlight board (420), a display screen (430), and an MCU (440). The key switch (410) is electrically connected to the MCU (440), the MCU (440) is electrically connected to the display screen (430), the backlight board (420) is installed at one end of the display screen (430), and the MCU (440) is installed on the side blocked by the display screen (430); the key switch (410) is installed on the key hole position (111), and the display screen (430) is installed on the display area (114) of the display screen.

7. The vision measuring device according to claim 6, characterized in that, The key switch (410) includes a power-on key (411), a switching key (412), a sound key (413), a backward movement key (414), a forward movement key (415), and a confirmation key (416); the power-on key (411) is used for power-on and power-off, the switching key (412) is used for visually switching between the first optical lens (210) and the second optical lens (220), the sound key (413) is used for sound control, the backward movement key (414) is used for controlling the backward movement of the physical module (30), the forward movement key (415) is used for controlling the forward movement of the physical module (30), and the confirmation key (416) is used to execute the instructions after the operations of the switching key (412), the sound key (413), the backward movement key (414), and the forward movement key (415).

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