Vision screening device for ophthalmology department
By using an infrared transmitter and receiver connected to a controller in the vision screening device, visual acuity readings are automatically sent to electronic devices, solving the problem of tedious manual recording and achieving efficient vision screening operations.
Patent Information
- Application Number
- CN202520163978.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing vision screening devices require manual recording and input of visual acuity values after operation, a process that is cumbersome, time-consuming, and labor-intensive.
An infrared transmitter and receiver are connected to the controller to automatically acquire visual acuity readings and transmit them to electronic devices via a wireless transmission module, simplifying the recording process.
It enables the automatic transmission of test results to electronic devices after vision screening, saving time and effort, reducing equipment costs, and making it suitable for widespread application.
Smart Images
Figure CN223860835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vision screening devices, and in particular to an ophthalmic vision screening device. Background Technology
[0002] In recent years, the incidence of myopia has shown a continuous upward trend. This is not only related to the increasing exposure to electronic devices in daily life, but also to the eye habits of those undergoing vision screening. Regular and continuous vision checks using vision screening devices can more effectively and promptly detect the development of vision problems in advance, allowing for the identification of the root causes and the implementation of intervention measures to prevent myopia and other related issues.
[0003] During vision screening, the test subject typically stands five meters in front of the eye chart, covering one eye. Medical staff use an indicator stick to point to the letter "E" on the test chart. The diopter corresponding to the smallest "E" on the eye chart that the test subject can clearly see with one eye is the final test diopter of the uncovered eye.
[0004] However, currently, after the vision screening is completed, the testers need to manually record the diopter of both eyes on a paper form and then manually input the diopter of both eyes into an electronic device to facilitate the testers' subsequent review and prescription of glasses. The manual operation process is cumbersome, time-consuming and laborious. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide an ophthalmic vision screening device.
[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0007] An ophthalmic vision screening device, comprising:
[0008] A visual acuity chart lightbox includes: a box with an opening at the top, a backlight panel, and a visual acuity chart. The visual acuity chart is clipped onto the open end face of the box and has multiple rows of test marks on it. The backlight panel is fixed inside the box and is located on the back of the visual acuity chart.
[0009] An infrared transmitter is located on the left side of the eye chart, and an infrared receiver is located on the right side. Both the infrared transmitter and the infrared receiver are connected to a controller, which is connected to a wireless transmission module.
[0010] The controller is used to obtain the test degree corresponding to the blocking position when it is determined that the infrared light is blocked, and send it to the wireless transmission module. The wireless transmission module is used to send the test degree to the electronic device when it receives a confirmation command.
[0011] In one embodiment of this utility model, the infrared emitting device includes multiple groups of infrared emitting tubes spaced apart from top to bottom, and the infrared receiving device includes multiple groups of infrared receiving tubes spaced apart from top to bottom; and the infrared emitting tube groups and the infrared receiving tube groups correspond one-to-one.
[0012] In one embodiment of this utility model, for any infrared emitting tube group, the height of the infrared rays emitted by the infrared emitting tube group is consistent with the distance between the two adjacent rows of test targets.
[0013] As one embodiment of this utility model, it also includes a plurality of indicator lights, each connected to the controller. The plurality of indicator lights are set according to the test marks on the visual acuity chart, and each indicator light is located to the left of the corresponding row of test marks.
[0014] The controller is also used to control the indicator light corresponding to the row where the infrared light is blocked to light up when it is determined that the infrared light is blocked.
[0015] In one embodiment of this utility model, a background light source is provided on the backlight panel, the backlight light source is connected to a microcontroller, and the microcontroller is used to adjust the brightness of the backlight light source.
[0016] As one embodiment of this utility model, it also includes: an indicator stick, the inside of which is provided a control module and the wireless transmission module, and the housing is provided with a left eye transmission button and a right eye transmission button;
[0017] The left eye sending button, the right eye sending button, and the wireless transmission module are all connected to the control module.
[0018] In one embodiment of this utility model, the housing is also provided with an indicator light, which is connected to the control module.
[0019] The beneficial effects of adopting the above technical solution are as follows:
[0020] The ophthalmic vision screening device provided by this utility model can trigger a confirmation command after the vision screening operation is completed, and send the measured test result to the electronic device to facilitate the tester's subsequent review and prescription of glasses. It eliminates the need for manual recording and input into the electronic device, saving time and effort.
[0021] In addition, screening devices that are remotely controlled or touch-screened are generally LCD screens, which are relatively expensive. This invention only requires setting an infrared transmitter and an infrared receiver on the left and right sides of the vision chart, and then connecting the infrared transmitter and the infrared receiver to the controller. It is simple to make and has low manufacturing cost, making it suitable for widespread promotion. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of an ophthalmic vision screening device provided in an embodiment of this utility model.
[0023] Figure 2 yes Figure 1 An explosion diagram.
[0024] Figure 3 This is a partial front view of a vision chart provided in an embodiment of the present invention.
[0025] Figure 4 This is a circuit connection diagram provided by an embodiment of the present invention.
[0026] The components include: 100 indicator sticks, 200 left eye send buttons, 300 right eye send buttons, 400 control modules, and 500 indicator lights.
[0027] 1. Vision chart light box, 101. Box body, 102. Backlight panel, 103. Vision chart, 103-1. Test target, 2. Infrared transmitter, 201. Infrared emitting tube group, 3. Infrared receiver, 301. Infrared receiving tube group, 4. Controller, 5. Wireless transmission module, 6. Indicator light. Detailed Implementation
[0028] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.
[0029] This utility model embodiment provides an ophthalmic vision screening device, which is used in conjunction with an indicator stick 100, such as... Figures 1-4 As shown, it includes:
[0030] The vision chart light box 1 includes: a housing 101, a backlight panel 102, and a vision chart 103. The vision chart 103 is mounted on the open end face of the housing 101 and has multiple rows of test marks 103-1. An infrared emitting device 2 and an infrared receiving device 3 are respectively provided on the left and right sides of the vision chart 103. The backlight panel 102 is fixed inside the housing 101 and is located on the back of the vision chart 103. A backlight source is provided on the backlight panel 102. The backlight source is connected to a microcontroller. The microcontroller is used to adjust the brightness of the backlight source. The brightness of the backlight source can be adjusted manually by operating the power brightness plus and minus buttons located on the housing.
[0031] In this invention, the placement of the infrared emitting device 2 and the infrared receiving device 3 is not specifically limited. For example, such as... Figure 1 and Figure 3 As shown, the infrared transmitter 2 is located on the left side of the visual acuity chart 103, and the infrared receiver 3 is located on the right side of the visual acuity chart 103.
[0032] The controller 4 is located inside the housing 101 and is connected to the infrared transmitter 2 and the infrared receiver 3, respectively.
[0033] The wireless transmission module 5 is disposed on the outside of the housing 101;
[0034] The controller 4 is used to obtain the test degree corresponding to the blocking position when it is determined that the infrared light is blocked, and send it to the wireless transmission module 5. The wireless transmission module 5 is used to send the test degree to the electronic device when it receives a trigger command.
[0035] When using the ophthalmic vision screening device provided in this embodiment, the test subject generally stands five meters in front of the vision chart 103, covering one eye. The medical staff points to the "E" on any row of the test chart 103-1 using the indicator stick 100. When the "E" is randomly pointed to, the controller 4 determines that the infrared light is blocked at the "E". At this time, the test diopter corresponding to the blocked position is obtained (the diopter corresponding to each row is fixed, so the test diopter can be obtained according to the row and column where the blocked position is located) and sent to the wireless transmission module 5.
[0036] If the tester determines that the subject in a particular row does not meet the standard, a confirmation command can be triggered, and the wireless transmission module 5 can then send the test result to the electronic device. Of course, if the subject in a particular row meets the standard, the tester can also point to any of the test marks "E" in other rows, and the controller 4 can still obtain a new test result and send it to the wireless transmission module 5 until the final test result is obtained. Then, a confirmation command is triggered, and the wireless transmission module 5 can then send the test result to the electronic device.
[0037] The ophthalmic vision screening device provided in this embodiment can trigger a confirmation command after the vision screening operation is completed, and send the measured refractive error to the electronic device to facilitate the tester's subsequent review and prescription of glasses. It eliminates the need for manual recording and input into the electronic device, saving time and effort.
[0038] In addition, screening equipment that uses remote control or touch measurement is generally an LCD screen, which is relatively expensive. However, this utility model only requires setting an infrared transmitter 2 and an infrared receiver 3 on the left and right sides of the vision chart 103, and then connecting the infrared transmitter 2 and the infrared receiver 3 to the controller 4. Its manufacturing method is simple and the manufacturing cost is low, making it suitable for widespread promotion.
[0039] The wireless transmission module 5 can be a wireless remote control; or, as... Figure 2As shown, to facilitate operation by testers, the wireless transmission module 5 is located inside the indicator stick 100. Furthermore, screening typically distinguishes between the left and right eyes, such as... Figure 2 The indicator stick 100 housing is provided with a left eye sending key 200 and a right eye sending key 300. The indicator stick 100 is also provided with a control module 400. The left eye sending key 200, the right eye sending key 300 and the wireless transmission module 5 are all connected to the control module 400, so as to distinguish the test values of the two eyes.
[0040] For example, when the tester determines that the test subject's left eye prescription is 500, they click the left eye confirmation button. The control module 400 then controls the wireless transmission module 5 to send 500 to the left eye prescription information in the electronic device. Subsequently, the right eye can be screened. When the right eye prescription is determined to be 400, the tester clicks the right eye confirmation button. The control module 400 then controls the wireless transmission module 5 to send 400 to the right eye prescription information in the electronic device.
[0041] In one possible implementation, to achieve the function of the aforementioned controller 4, such as Figure 1 and Figure 3 As shown, the infrared emitting device 2 includes multiple infrared emitting tube groups 201 arranged at intervals from top to bottom, and the infrared receiving device 3 includes multiple infrared receiving tube groups 301 arranged at intervals from top to bottom; the infrared emitting tube groups 201 and infrared receiving tube groups 301 correspond one-to-one, and are also set according to the test target 103-1 on the visual acuity chart 103, specifically, as... Figure 3 As shown, for any infrared emitting tube group 201, the height of the infrared rays emitted by the infrared emitting tube group 201 is consistent with the distance between the two adjacent rows of test marks 103-1 (i.e., the infrared emitting tube group 201).
[0042] Of course, during the screening process, an indicator light 500 is also installed on the screening device to help testers understand the progress.
[0043] In one possible implementation, it further includes a plurality of indicator lights 6, each connected to the controller 4, wherein the plurality of indicator lights 6 are configured according to the test target 103-1 on the vision chart 103, wherein, for example Figure 3 As shown, each of the indicator lights 6 is located on the left side of the corresponding row test label 103-1;
[0044] The controller 4 is also used to control the indicator light 6 corresponding to the row where the blocking position is located to light up when it is determined that the infrared light is blocked.
[0045] Of course, the housing of the indicator stick 100 is also equipped with an indicator light 500, which is connected to the control module 400. After the control module 400 successfully controls the wireless transmission module 5 to send the signal, it can also control the indicator light 500 to light up.
[0046] This utility model does not specifically limit the light emission mode of the indicator light 6 and the indicator light 500. They can be any color that meets the requirements or any frequency that meets the requirements. For example, the indicator light 6 is a red light. As long as the controller 4 determines that the infrared light is blocked, it controls the indicator light 6 corresponding to the row where the blocking position is located to light up until the infrared light in that row is no longer blocked. The indicator light 500 is a green light that lasts for a preset duration. The preset duration can be 3 seconds or 5 seconds. After it is determined that the wireless transmission module 5 has successfully transmitted the signal, the green light of the preset duration is displayed, which can facilitate the test personnel to perform subsequent steps.
[0047] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An ophthalmic vision screening device, characterized in that, It is used in conjunction with an indicator stick (100), which includes: The visual acuity chart light box (1) includes: a box body (101), a backlight panel (102), and a visual acuity chart (103). The visual acuity chart (103) is mounted on the open end face of the box body (101) and has multiple rows of test marks (103-1). An infrared emitting device (2) and an infrared receiving device (3) are respectively provided on the left and right sides of the visual acuity chart (103). The backlight panel (102) is fixed inside the box body (101) and is located on the back of the visual acuity chart (103). The controller (4) is located inside the housing (101) and is connected to the infrared transmitter (2) and the infrared receiver (3) respectively; A wireless transmission module (5) is disposed on the outside of the housing (101); The controller (4) is used to obtain the test degree corresponding to the blocking position when it is determined that the infrared light is blocked, and send it to the wireless transmission module (5). The wireless transmission module (5) is used to send the test degree to the electronic device when it receives the confirmation command.
2. The ophthalmic vision screening device according to claim 1, characterized in that, The infrared emitting device (2) includes multiple infrared emitting tube groups (201) arranged at intervals from top to bottom, and the infrared receiving device (3) includes multiple infrared receiving tube groups (301) arranged at intervals from top to bottom; and the infrared emitting tube groups (201) and the infrared receiving tube groups (301) correspond one-to-one.
3. The ophthalmic vision screening device according to claim 2, characterized in that, For any infrared emitting tube group (201), the height of the infrared rays emitted by the infrared emitting tube group (201) is consistent with the distance between the two adjacent rows of test marks (103-1).
4. The ophthalmic vision screening device according to claim 2, characterized in that, It also includes multiple indicator lights (6) that are all connected to the controller (4), and the multiple indicator lights (6) are set according to the test chart (103-1) on the vision chart (103); The controller (4) is also used to control the indicator light (6) corresponding to the row where the blocking position is located to light up when it is determined that the infrared light is blocked.
5. The ophthalmic vision screening device according to claim 3, characterized in that, The backlight panel (102) is provided with a backlight source, which is connected to a microcontroller. The microcontroller is used to adjust the brightness of the backlight source.
6. The ophthalmic vision screening device according to claim 1, characterized in that, The wireless transmission module (5) is a wireless remote control.
7. The ophthalmic vision screening device according to claim 1, characterized in that, The wireless transmission module (5) is located inside the indicator stick (100), and the indicator stick (100) is also provided with a control module (400). The housing is provided with a left eye sending key (200) and a right eye sending key (300). The left eye sending key (200), the right eye sending key (300), and the wireless transmission module (5) are all connected to the control module (400).
8. The ophthalmic vision screening device according to claim 7, characterized in that, The housing is also provided with an indicator light (500), which is connected to the control module (400).