A self-service vision tester

Abstract

The application discloses a self-service vision tester, and relates to the technical field of vision testing equipment, which comprises a light box, a vision chart arranged on the front face, a plurality of characters in the vision chart, an LED lamp or a telescopic unit correspondingly arranged below each character, a light box control circuit arranged in the light box, the light box control circuit comprising a light box master control unit, a first Bluetooth interface circuit and a control interface circuit, a remote controller, an internal remote controller control circuit, the remote controller control circuit comprising a remote controller master control unit, a gyroscope interface circuit and a second Bluetooth interface circuit, real-time posture data collected by the gyroscope and sent to the light box master control unit, and the light box master control unit determining a vision test result. After the vision tester is used, a person to be tested can determine the direction of the characters on the light box by operating the remote controller, without the assistance of additional personnel, so that self-service vision testing in a true sense is realized.

Description

Technical Field

[0001] This application relates to the field of vision testing equipment technology, and in particular to a self-service vision testing device. Background Technology

[0002] Vision testing is a routine physical examination item. The test subject stands at a certain distance from the vision chart and judges the direction of the characters on the vision chart to achieve the vision test.

[0003] Currently, vision testing requires two people: the person being tested and a medical professional who points out the characters to be judged next to the vision chart and provides the results. This method is inconvenient and cannot be done independently. Utility Model Content

[0004] This application provides a self-service vision testing device to solve the problem that vision testing cannot be performed independently in the prior art.

[0005] This application provides a self-service vision testing device, including: The lightbox has a vision chart on the front with multiple characters. Each character has an LED light or telescopic unit below it. The lightbox has a control circuit inside, which includes a main control unit, a first Bluetooth interface circuit, and a control interface circuit. The first Bluetooth interface circuit and the control interface circuit are connected to the main control unit, the first Bluetooth interface circuit is connected to the first Bluetooth module, and the control interface circuit is connected to the LED light or telescopic unit. The remote control contains a control circuit, which includes a main control unit, a gyroscope interface circuit, and a second Bluetooth interface circuit. The gyroscope interface circuit and the second Bluetooth interface circuit are connected to the main control unit, respectively. The gyroscope interface circuit is connected to the gyroscope, and the second Bluetooth interface circuit is connected to the second Bluetooth module. The first Bluetooth module and the second Bluetooth module are wirelessly connected. The gyroscope collects real-time attitude data and sends it to the main control unit of the lightbox through the second Bluetooth module and the first Bluetooth module. The main control unit of the lightbox determines the vision test result based on the real-time attitude data and the direction of the characters indicated by the current LED light or telescopic unit.

[0006] In one possible implementation, the front of the lightbox is also provided with a printing port, and a printer is also provided inside the lightbox. The printer is located in a position corresponding to the printing port, and the printer is connected to the main control unit of the lightbox. The printer prints the vision test results on paper.

[0007] In one possible implementation, a barcode scanner is provided on the front of the lightbox, and a barcode scanner is provided inside the lightbox at the position corresponding to the barcode scanner. The barcode scanner is connected to the main control unit of the lightbox and is used to scan the QR code displayed on the mobile device used by the test subject. The main control unit of the lightbox obtains the personal information of the test subject in the QR code, and the printer prints the personal information onto paper.

[0008] In one possible implementation, the front and interior of the lightbox are respectively provided with speaker holes and speakers, with the speakers positioned corresponding to the speaker holes. The lightbox control circuit also includes a voice broadcasting circuit, which is connected to the speakers and the lightbox main control unit. The speakers broadcast the vision test results in a voice manner. The voice broadcasting circuit is also connected to a microphone, which converts the voice of the test subject judging the direction of the characters into an electrical signal. The lightbox main control unit determines whether the direction input by the test subject is correct.

[0009] In one possible implementation, a status indicator light is also provided on the front of the lightbox, and the lightbox control circuit also includes an indicator light circuit, which is connected to the status indicator light and the main control unit of the lightbox respectively.

[0010] In one possible implementation, the light box is also equipped with a switch mode selection key, and the light box control circuit also includes a switch mode selection circuit, which is connected to the switch mode selection key and the light box main control unit respectively.

[0011] In one possible implementation, the front of the remote control is provided with directional keys, an OK key, and a print key. The remote control control circuit also includes a button circuit, which is connected to the directional keys, the OK key, the print key, and the remote control main control unit, respectively.

[0012] In one possible implementation, the remote control also has a power switch on the front, and the remote control control circuit also includes a switch circuit, which is connected to the power switch and the remote control main control unit respectively.

[0013] In one possible implementation, the remote control also has a Bluetooth indicator light on the front, and the remote control control circuit also includes a Bluetooth status indicator circuit, which is connected to the Bluetooth indicator light and the remote control main control unit respectively.

[0014] In one possible implementation, the remote control circuit also includes a power detection circuit, which is connected to the remote control main control unit.

[0015] In one possible implementation, a light source strip is installed inside the light box, with the light source strip positioned on both sides of the inside of the light box, or the light source strip is positioned on both sides of the light guide plate inside the light box.

[0016] The self-service vision testing device disclosed in this application has the following advantages: The test subject can determine the direction of characters by pointing the remote control at the vertical plane of their vision, without the need for additional personnel assistance, thus achieving a truly self-service vision test. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram illustrating the composition of the self-service vision testing device provided in the embodiments of this application.

[0019] Figure 2 The mounting structure for the internal bracket, LED light, or telescopic unit of the light box provided in the embodiments of this application.

[0020] Figure 3 This is a circuit module diagram of the inside of the light box provided in an embodiment of this application.

[0021] Figure 4 The circuit diagram of the main control unit for the light box provided in the embodiments of this application is shown.

[0022] Figure 5 A circuit diagram of an indicator light circuit provided in an embodiment of this application.

[0023] Figure 6 A circuit diagram of the switching mode selection circuit provided in the embodiments of this application.

[0024] Figure 7 A circuit diagram of the first Bluetooth interface circuit provided in an embodiment of this application.

[0025] Figure 8 A circuit diagram of the voice broadcasting circuit provided in the embodiments of this application.

[0026] Figure 9 A circuit diagram of the control interface circuit provided in an embodiment of this application.

[0027] Figure 10 This is a circuit module diagram of the internal circuit of the remote controller provided in an embodiment of this application.

[0028] Figure 11 The circuit diagram of the remote control master control unit provided in the embodiments of this application.

[0029] Figure 12The circuit diagram is provided for the power detection circuit in the embodiment of this application.

[0030] Figure 13 A circuit diagram of the gyroscope interface circuit provided in the embodiments of this application.

[0031] Figure 14 A circuit diagram of the second Bluetooth interface circuit provided in an embodiment of this application.

[0032] Figure 15 A circuit diagram of a Bluetooth status indication circuit provided in an embodiment of this application.

[0033] Figure 16 The circuit diagram of the button circuit provided in the embodiment of this application.

[0034] Figure 17 A circuit diagram of a switching circuit provided in an embodiment of this application.

[0035] The following are the symbol labels: 1. Lightbox; 2. Eye chart; 3. LED light; 4. Scanning port; 5. Printing port; 6. Speaker hole; 7. Status indicator light; 8. Switch mode selection button; 9. Remote control; 10. Directional keys; 11. Confirm button; 12. Print button; 13. Power button; 14. Bluetooth indicator light; 15. Stand; 16. Telescopic unit; 17. Light source strip; 18. Light guide plate. Detailed Implementation

[0036] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Figure 1 This is a schematic diagram illustrating the composition of a self-service vision testing device provided in an embodiment of this application. This application provides a self-service vision testing device, including: The lightbox 1 has a vision chart 2 and a printing port 5 on its front. The vision chart 2 has multiple characters, and each character is equipped with an LED light 3 or a telescopic unit 16 below it. The lightbox 1 has a lightbox control circuit and a printer inside. The lightbox control circuit includes a lightbox main control unit, a first Bluetooth interface circuit and a control interface circuit. The printer, the first Bluetooth interface circuit and the control interface circuit are respectively connected to the lightbox main control unit. The first Bluetooth interface circuit is connected to the first Bluetooth module. The control interface circuit is connected to the LED light 3 or the telescopic unit 16. The printer is located at the position corresponding to the printing port 5. Remote controller 9 has an internal remote control circuit, which includes a main control unit, a gyroscope interface circuit, and a second Bluetooth interface circuit. The gyroscope interface circuit and the second Bluetooth interface circuit are connected to the main control unit, respectively. The gyroscope interface circuit is connected to the gyroscope, and the second Bluetooth interface circuit is connected to the second Bluetooth module. The first Bluetooth module and the second Bluetooth module are wirelessly connected. The gyroscope collects real-time attitude data and sends it to the main control unit of the lightbox through the second Bluetooth module and the first Bluetooth module. The main control unit of the lightbox determines the vision test result based on the real-time attitude data and the direction of the character indicated by the current LED light 3 or the telescopic unit. The printer prints the vision test result on paper.

[0038] For example, the lightbox 1 includes upper and lower parts. The upper part is used to install the eye chart 2. Specifically, the eye chart 2 is formed by printing characters on a soft film. The printed characters decrease in size from top to bottom, and the corresponding vision test results increase accordingly. Inside the lightbox 1, a light source strip 17 is provided at the position corresponding to the eye chart 2. When the light source strip 17 is turned on, it can illuminate the eye chart 2 so that the test subject can clearly see the characters on the eye chart 2.

[0039] Inside the light box 1, an LED light 3 or a telescopic unit 16 is set below each character. These LED lights 3 or telescopic units 16 can be closely attached to the inner surface of the eye chart 2. When a certain LED light 3 or telescopic unit 16 is activated, the test subject can identify the character whose direction needs to be judged by the light emitted by the LED light 3 or the shadow caused by the telescopic unit blocking the light, and then judge the characters line by line in the set order.

[0040] Specifically, such as Figure 2 As shown, a bracket 15 parallel to and close to the eye chart 2 can be installed inside the light box. The LED light 3 or the telescopic unit 16 is installed on this bracket 15. After the installation of the LED light 3 or the telescopic unit 16 is completed, the end of the LED light 3 or the telescopic unit 16 is in contact with or only a very small distance (e.g., 1 mm) from the inner surface of the eye chart 2, to ensure that the light emitted by the LED light 3 or the shadow cast by the telescopic unit 16 can be clearly applied to the eye chart 2. Furthermore, the telescopic unit 16 can adopt an electromagnetic telescopic structure. When energized, its end can extend to fit tightly against the inner surface of the eye chart 2, and when de-energized, its end will retract. After it stops contacting the eye chart 2, the light inside the light box 1 will illuminate the position that was originally blocked by the telescopic unit 16, thereby ending the indication of the characters.

[0041] The remote control 9 is preferably shaped for easy gripping by the test subject, such as a rod or column. The lightbox 1 and remote control 9 are powered on synchronously. After powering on, the lightbox main control unit sequentially controls the LED 3 corresponding to the topmost character to light up or the telescopic unit 16 to extend. The test subject observes the direction of the character and adjusts the orientation of the remote control 9, specifically the top orientation: the character opening and the top of the remote control 9 should point in the same direction; adjusting the remote control 9 to the left indicates the character opening is to the left, adjusting it upwards indicates the character opening is upwards, adjusting it to the right indicates the character opening is to the right, and adjusting it downwards indicates the character opening is downwards. The gyroscope in the remote control 9 detects real-time attitude data, which is then judged by the lightbox main control unit. The main control unit retrieves direction data from the storage unit based on the character indicated by the current LED 3 or telescopic unit 16. If the real-time attitude data and direction data match, the test subject's judgment is correct. The system then jumps to the next line. If a line has multiple characters, they are tested sequentially from left to right. Once all characters in a line have been correctly judged, the system jumps to the next line. If the direction of a character is incorrectly determined—that is, the real-time attitude data collected by the gyroscope and the direction data obtained by the lightbox's main control unit are inconsistent—the LED 3 below that character will flash, or the telescopic unit 16 will repeatedly extend and retract to remind the test subject of the incorrect judgment. At this point, the character will be re-evaluated. If the next judgment is correct, the process moves to the next character. If it is still incorrect, another judgment is made. If all three judgments are incorrect, the direction of that character is considered to have been incorrectly determined.

[0042] If the direction of a character in a line is incorrectly determined, the vision test result will be the vision value of the line above that line, and the vision test will end. After the printer prints out the vision test results, the printed paper will extend from printout 5, and the test taker can tear it off.

[0043] like Figures 3-9 As shown, in this embodiment, the main control unit U3 of the light box is an STM32F103RCT6. The main control unit U3 controls the on / off state of eight LEDs 3 (Q0-Q7) through an output latch shift register U29 (model 74HC595D). These eight LEDs 3 are connected to the output latch shift register U29 via interfaces U8-U9, U11, U15, U21, and U26-U28, respectively. By using multiple output latch shift registers U29, control of multiple LEDs 3 can be achieved with minimal resources from the main control unit U3.

[0044] like Figures 10-17As shown, the remote control main control unit U1 is an STM32L431RCT6, and the gyroscope MPU is a JY901L. It should be understood that the above circuit diagram is merely an example of connecting LED 3, and those skilled in the art will understand that LED 3 can be replaced with the telescopic unit 16.

[0045] Furthermore, the first Bluetooth interface circuit in this embodiment has two interfaces for connecting the first Bluetooth module, namely BT1 and BT2. Each interface can connect to one first Bluetooth module, or only one interface can connect to the first Bluetooth module. When both interfaces are connected to the first Bluetooth module, the two first Bluetooth modules will form redundancy, ensuring normal connection between the light box 1 and the remote control 9. In the remote control 9, the second Bluetooth module is connected to interface BT to achieve connection with the remote control's main control unit.

[0046] In one possible embodiment, a barcode scanner 4 is provided on the front of the lightbox 1, and a barcode scanner is provided inside the lightbox 1 at a position corresponding to the barcode scanner 4. The barcode scanner is connected to the main control unit of the lightbox and is used to scan the QR code displayed on the mobile device used by the test subject. The main control unit of the lightbox obtains the personal information of the test subject in the QR code, and the printer prints the personal information on paper.

[0047] For example, the personal information of the test subject includes name, age, gender, doctor and hospital. After obtaining this personal information, the lightbox main control unit will also combine the personal information with the vision test results to form print information containing personal information, left eye vision, right eye vision and time. The printer can then print this information on paper.

[0048] It should be understood that obtaining personal information by scanning QR codes is existing technology, at least as described in CN114358959A, therefore this application will not describe it in detail.

[0049] In one possible embodiment, the front and interior of the light box 1 are respectively provided with a speaker hole 6 and a speaker. The speaker is located at a position corresponding to the speaker hole 6. The light box control circuit also includes a voice broadcasting circuit, which is connected to the speaker and the light box main control unit respectively. The speaker broadcasts the vision test results in a voice manner.

[0050] For example, after the main control unit U3 of the lightbox sends the vision test results to the voice recognition module U4 (model SU-03T), the voice recognition module U4 converts the text-based vision test results into speech, which is then played by the speaker. Simultaneously, the voice recognition module U4 in this embodiment is also connected to a microphone MIC1 (model GMI6027P-2C64DB). The speech emitted by the test subject is converted into an electrical signal by the microphone MIC1, then converted into text by the voice recognition module, and finally the main control unit of the lightbox executes the action corresponding to the speech. Specifically, in addition to inputting the direction of the characters via the remote control 9, the test subject can also input via voice. After recognizing the speech emitted by the test subject, the voice recognition module obtains the corresponding direction information, and the main control unit of the lightbox judges this direction information to determine whether the direction is correct.

[0051] In one possible embodiment, a status indicator light 7 is also provided on the front of the light box 1, and the light box control circuit also includes an indicator light circuit, which is connected to the status indicator light 7 and the light box main control unit respectively.

[0052] For example, the status indicator 7 includes two indicator lights, LED1 and LED2. Indicator LED1 is connected to the power supply circuit and will light up when the light box 1 is connected to the power supply and turned on. Indicator LED2 is connected to the main control unit of the light box and will light up when the first Bluetooth module and the second Bluetooth module are successfully connected.

[0053] In one possible embodiment, the front of the light box 1 is also provided with a switch mode selection key 8, and the light box control circuit also includes a switch mode selection circuit, which is connected to the switch mode selection key 8 and the light box main control unit respectively.

[0054] For example, the switch mode selection key 8 includes two buttons, namely left eye and right eye, which are connected to the lightbox main control unit through interfaces H7 and H4 respectively. When the lightbox 1 is turned on, the speaker will play a voice prompt to prompt the test subject to select the left eye or the right eye. After an eye is selected, the vision test will begin in the order of the characters and the vision test result will be recorded in the vision test result of that eye after the test is completed.

[0055] Furthermore, the remote control 9 also has a power switch 13 on its front side. The remote control control circuit also includes a switch circuit, which is connected to the power switch 13 and the remote control main control unit. After the test subject has finished testing the eye selected by the switch mode selection key 8 on the light box 1, since there is a certain distance between the test subject and the light box 1, the power switch 13 on the remote control 9 can be pressed. At this time, the vision test will be switched to the other eye. After the test of the other eye is completed, the vision test result will also be recorded in the corresponding position in the vision test results.

[0056] In the embodiments of this application, the switch 13 is connected to the remote control main control unit via interface H8.

[0057] In one possible embodiment, the front of the remote controller 9 is provided with a directional key 10, an OK key 11, and a print key 12. The remote controller control circuit also includes a button circuit, which is connected to the directional key 10, the OK key 11, the print key 12, and the remote controller main control unit, respectively.

[0058] For example, the directional keys 10 include four directional keys: up, down, left, and right, which are KEY_UP, KEY_DOWN, KEY_LEFT, and KEY_RIGHT, respectively. After the vision test begins, since the default order is to judge from the topmost character, if the test subject finds the topmost character and the following lines clearly visible, they can use the directional keys 10 to select the line containing the character. Once a suitable line is selected, pressing the confirmation key 11 (KEY_SURE) will start the vision test from the selected line. If, after testing one or several lines of characters, the test subject finds the characters in the following lines unclear, they can press the print key 12 (KEY_PRINT) to output the current vision test result. By setting the directional keys 10, confirmation key 11, and print key 12, the efficiency of the vision test can be improved, eliminating the need to start each vision test from the first line and end it on the last line that the test subject can correctly judge.

[0059] In one possible embodiment, the front of the remote controller 9 is also provided with a Bluetooth indicator light 14, and the remote controller control circuit also includes a Bluetooth status indicator circuit, which is connected to the Bluetooth indicator light 14 and the remote controller main control unit respectively.

[0060] For example, the Bluetooth indicator light 14 has two colors, namely red and blue. When the first Bluetooth module and the second Bluetooth module are successfully connected, the blue Bluetooth indicator light 14 lights up, while if the Bluetooth connection is abnormal, the red Bluetooth indicator light 14 lights up.

[0061] In one possible embodiment, the remote control circuit further includes a power detection circuit, which is connected to the remote control main control unit.

[0062] For example, the remote control 9 is battery powered. The power detection circuit is connected to both the remote control main control unit and the battery to detect the remaining battery power. The detected remaining power is sent to the lightbox main control unit via the second Bluetooth module and the first Bluetooth module. The lightbox main control unit determines whether the remaining power is too low. If the remaining power is too low, it controls the speaker to emit a reminder voice.

[0063] In one possible embodiment, a light source strip 17 is provided inside the light box 1, and the light source strip 17 is provided on both sides inside the light box 1, or the light source strip 17 is provided on both sides of the light guide plate 18 in the light box 1.

[0064] For example, if a light guide plate 18 is used, the light guide plate 18 will be set in a direction parallel to the eye chart 2. The light emitted by the light source strips 17 on both sides will enter the light guide plate 18 from two directions. Through the refraction of the light guide plate 18, the interior of the light box 1 can be evenly illuminated.

[0065] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0066] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A self-service vision testing device, characterized in that, include: A lightbox (1) is provided with a vision chart (2) on the front of the lightbox (1). The vision chart (2) has multiple characters. Each character is provided with an LED light (3) or a telescopic unit (16) below it. The lightbox (1) is provided with a lightbox control circuit inside. The lightbox control circuit includes a lightbox main control unit, a first Bluetooth interface circuit and a control interface circuit. The first Bluetooth interface circuit and the control interface circuit are respectively connected to the lightbox main control unit. The first Bluetooth interface circuit is connected to the first Bluetooth module. The control interface circuit is connected to the LED light (3) or the telescopic unit (16). The remote control (9) is equipped with a remote control control circuit, which includes a remote control main control unit, a gyroscope interface circuit, and a second Bluetooth interface circuit. The gyroscope interface circuit and the second Bluetooth interface circuit are respectively connected to the remote control main control unit. The gyroscope interface circuit is connected to the gyroscope. The second Bluetooth interface circuit is connected to the second Bluetooth module. The first Bluetooth module and the second Bluetooth module are wirelessly connected. The remote control (9) is a rod or column shape that is easy for the test subject to hold. After the test subject observes the direction of the character indicated by the LED light (3) or the telescopic unit (16), he / she adjusts the orientation of the remote control (9) so that the top of the remote control (9) points in the same direction as the opening of the character. The gyroscope collects real-time posture data and sends it to the light box main control unit through the second Bluetooth module and the first Bluetooth module. The light box main control unit determines the vision test result based on the real-time posture data and the direction of the character indicated by the LED light (3) or the telescopic unit (16).

2. The self-service vision testing device according to claim 1, characterized in that, The front of the light box (1) is also provided with a printing port (5), and a printer is also provided inside the light box (1). The printer is located at a position corresponding to the printing port (5). The printer is connected to the main control unit of the light box and prints the vision test results on paper.

3. The self-service vision testing device according to claim 2, characterized in that, The front of the light box (1) is also provided with a barcode scanner (4). Inside the light box (1), a barcode scanner is provided at a position corresponding to the barcode scanner (4). The barcode scanner is connected to the main control unit of the light box. The barcode scanner is used to scan the QR code displayed on the mobile device used by the test subject. The main control unit of the light box obtains the personal information of the test subject in the QR code, and the printer prints the personal information on paper.

4. The self-service vision testing device according to claim 1, characterized in that, The front and interior of the lightbox (1) are respectively provided with speaker holes (6) and speakers. The speakers are located at positions corresponding to the speaker holes (6). The lightbox control circuit also includes a voice broadcasting circuit. The voice broadcasting circuit is connected to the speakers and the lightbox main control unit respectively. The speakers broadcast the vision test results in a voice manner. The voice broadcasting circuit is also connected to a microphone. The microphone converts the voice of the test subject judging the direction of the character into an electrical signal. The lightbox main control unit judges whether the direction input by the test subject is correct.

5. A self-service vision testing device according to claim 1, characterized in that, The front of the light box (1) is also provided with a status indicator light (7). The light box control circuit also includes an indicator light circuit, which is connected to the status indicator light (7) and the main control unit of the light box respectively.

6. A self-service vision testing device according to claim 1, characterized in that, The light box (1) is also provided with a switch mode selection key (8). The light box control circuit also includes a switch mode selection circuit. The switch mode selection circuit is connected to the switch mode selection key (8) and the light box main control unit respectively.

7. A self-service vision testing device according to claim 1, characterized in that, The remote control (9) has a directional key (10), an confirmation key (11), and a print key (12) on its front side. The remote control control circuit also includes a button circuit, which is connected to the directional key (10), the confirmation key (11), the print key (12), and the remote control main control unit, respectively.

8. A self-service vision testing device according to claim 1, characterized in that, The remote control (9) also has a power switch (13) on the front. The remote control control circuit also includes a switch circuit, which is connected to the power switch (13) and the remote control main control unit respectively.

9. A self-service vision testing device according to claim 1, characterized in that, The front of the remote controller (9) is also provided with a Bluetooth indicator light (14). The remote controller control circuit also includes a Bluetooth status indicator circuit, which is connected to the Bluetooth indicator light (14) and the remote controller main control unit respectively.

10. A self-service vision testing device according to claim 1, characterized in that, The light box (1) is provided with a light source strip (17) inside. The light source strip (17) is located on both sides inside the light box (1), or the light source strip (17) is located on both sides of the light guide plate (18) in the light box (1).

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