TW202332405A - Portable intelligent multi-function phoropter - Google Patents

Abstract

A portable intelligent multi-function phoropter is disclosed. The phoropter comprises a casing, a plurality of control elements, two adjustable eyepiece modules, a plurality of micro motors, a liquid crystal display module, a control module and a power supply module. The casing of the present invention is small so that the overall volume is small, and it is convenient to carry and use. The present invention has many test patterns, so different vision tests can be performed. With the combination of convex lens and concave lens and the application of existing electronic components, the overall price is reduced. The invention satisfies the market demand for the phoropter.

Description

Portable intelligent multifunctional optometre

The present invention relates to an optometre, in particular to a handheld, portable, intelligent and multifunctional optometre with complete functions.

As we all know, traditional optometrists are table-top or desktop devices that are large in size and weight, and are inconvenient to move once installed. Therefore, when people need to use a refractometer, they must go to a specific place, such as an eye clinic or an optical shop, to know the condition of their eyes. For institutions that have vision testing needs, such as school health centers, they need to spend a lot of money and prepare installation space to meet the requirements. For parents who are generally concerned about their children's eye health, even if they have to go to the eye clinic frequently, they will not prepare a phoropter at home as a backup. If the size and price of the optometre are reduced, it will be a boon to the aforementioned institutions or individuals. Preferably, the phoropter is multi-functional, for example, it can perform visual acuity, color blindness, astigmatism and red-green tests at the same time.

This text extracts and compiles certain features of the invention. Other features will be revealed in subsequent paragraphs. It is intended to cover various modifications and similar arrangements within the spirit and scope of the appended claims.

In order to meet the aforementioned needs, the present invention discloses a portable intelligent multi-functional optometre, which includes: a housing; a plurality of control components installed on the housing and exposed from the outside; two adjustable eyepiece modules, movably installed on the A first side of the housing; a plurality of micro motors, each micro motor interacts with one of the two adjustable eyepiece modules and is driven to adjust the corresponding adjustable eyepiece module, thereby changing the direction of light from inside the housing. The focus position when externally emitted and the distance between the two adjustable eyepiece modules; a liquid crystal display module is installed inside a second side facing the first side of the housing, projecting images in the direction of the two adjustable eyepiece modules ; A control module is installed inside the housing and is connected with the plurality of control components, the plurality of micro motors and the liquid crystal display module to perform the following operations: causing the liquid crystal display module to present an operating interface; in cooperation The operation interface content executes a default program, receives control signals from the plurality of control components to determine an execution command; according to a first execution command, the liquid crystal display module displays a specified test pattern; according to a second execution command to drive the plurality of micro motors; to determine the test result according to a third execution command; and to record the test result and output the test result according to a fourth execution command; and a power supply module installed in the housing, It is electrically connected to the plurality of micro motors, the liquid crystal display module and the control module to provide power required for the operation of the electrical connection components.

According to the present invention, the plurality of control components may further include at least one function button and a direction button for inputting signals to the control module.

According to the present invention, a first adjustable eyepiece module may include: a first convex lens fixed on a first movable plate; and a first concave lens fixed on a second movable plate. The second movable plate A second gear rack is installed and movably placed on the first movable plate. The second gear rack rotates the gear mounted on one of the micromotors to move the second movable plate along a direction parallel to the first movable plate. The concave lens moves upward in the direction of its optical axis. A first gear rack is installed on the first movable plate. The first gear rack rotates the gear mounted on one of the micromotors to move the first movable plate vertically parallel to the moving direction of the second movable plate. direction movement.

According to the present invention, a second adjustable eyepiece module may include: a second convex lens fixed inside a side of the housing; and a second concave lens fixed on a third movable plate. A third gear rack is installed on the plate and is movably placed on the inside of the side. The third gear rack rotates the gear mounted on one of the micromotors to move the third movable plate along the parallel direction of the second gear rack. The concave lens moves upward in the direction of its optical axis.

According to the present invention, the power supply module may further include: a USB connector for receiving external power and transmitting information; a secondary battery; and a charge and discharge control chip electrically connected to the USB connector and the secondary battery to connect the USB The external power received by the connector is stored in the secondary battery, and the power in the secondary battery is output; and a power management chip changes the voltage of the power output by the charge and discharge control chip to a plurality of voltage values, respectively providing it to its battery. Connected components.

According to the present invention, the control module may further include: a flash memory module to store the test results, program code and program code related data; a synchronous dynamic random access memory module; a graphics processor, and The LCD module is connected with signals to control the display image of the LCD module; a wireless communication module; and a controller, and the control components, the USB connector, the synchronous dynamic random access memory module, The flash memory module, the graphics processor, the wireless communication module and the micro motors are signal-connected and electrically connected to the power management chip to execute a default program to perform the aforementioned operations, transfer part of the program code and call The program code related data is temporarily stored in the synchronous dynamic random access memory module, and the stored test results are transmitted to a wirelessly connected receiving device through the wireless communication module.

Preferably, the wireless communication module is a Bluetooth module or a Wi-Fi module.

Preferably, the test pattern is an international standard visual acuity chart (Tumbling E Chart), Landolt C Chart, Color Blindness Test graphic, Astigmatism Test graphic or Duochrome Test ) all or part of the graphic.

Preferably, the steps for determining the test result of the third execution command are: recording the control elements pressed by the user and their operating states according to all or part of the displayed chart or graph; Compare the pressed control element and its operating state with a database that stores all or each part of all charts or graphics, the corresponding control element, the corresponding operating state of the control element, and the corresponding eye state description; and select The description of the eye state corresponding to the identical comparison result is regarded as the test result.

According to the present invention, the adjustable eyepiece module can change the focal position of light when it is emitted from the inside of the housing to the outside, thereby simulating the actual distance of 20 to 50 feet required for eye refraction examination to a distance of about 10 cm.

According to the present invention, the test pattern simulates the image of a specific object seen through a lens with a specific power. Simultaneously displaying images with different simulations of seeing the specific object through lenses with specific powers can simulate the image of the specific object being seen when the lenses with specific powers overlap.

As can be seen from the foregoing description, the casing of the present invention is small and the overall volume is small, making it easy to carry and use; the present invention has many test patterns, so different vision tests can be performed; by combining convex lenses and concave lenses and applying existing electronic components, the overall The price has been reduced, thus meeting the market demand for optometrists.

The present invention will be described in more detail with reference to the following embodiments.

Please refer to FIGS. 1 and 2 . FIG. 1 is a schematic diagram of the appearance of a portable intelligent multi-functional refractometer 1 according to an embodiment of the present invention. FIG. 2 is an exploded schematic diagram of the portable intelligent multi-functional refractometer 1 . The portable intelligent multifunctional refractometer 1 includes a housing 10 and a plurality of control components (this embodiment includes a first function button 20, a second function button 21, a third function button 22 and a direction button 23 , but the implementation is not limited to this), a first adjustable eyepiece module 30, a second adjustable eyepiece module 31, and a plurality of micro motors (according to the spirit of the present invention, there must be at least three micro motors, In this embodiment, a first micromotor 40 , a second micromotor 41 and a third micromotor 42 are used as examples for illustration (see Figures 3 to 5 for details), a liquid crystal display module 50 and a control module 60 and a power supply module 70 . The types and functions of the aforementioned technical components, as well as the operation method and effectiveness of the portable intelligent multi-functional optometre 1 will be explained below with relevant illustrations.

The casing 10 is a component that protects the internal electronics and mechanical materials of the portable intelligent multifunctional optometre 1 and is convenient for the tester to hold. Viewed from the outside, the housing 10 has several openings to allow the first function button 20, the second function button 21, the third function button 22, the direction button 23, the first adjustable eyepiece module 30, and the The second adjustable eyepiece module 31 and USB socket are exposed for the tester to operate. The tester can hold both sides of the housing 10 with both hands, operate each function button and direction button 23 with his fingers, and put the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31 close to the eyes respectively to perform the test. test. The schematic diagram of FIG. 2 is a schematic illustration of the internal design of the housing 10 after it is exploded along its six sides. It should be noted that although the housing 10 in this embodiment is a rectangular parallelepiped, the invention does not limit its shape as long as it has necessary plate surfaces.

As mentioned above, the first function button 20 , the second function button 21 , the third function button 22 and the direction button 23 are respectively installed in the housing 10 through the openings and exposed to the outside. Each function button can be set through the program to give it a specific function. The function buttons are used to input signals to the control module 60, and can usually control the hardware. For example, short press (press and then release) the first function button 20 to turn on the portable intelligent multi-functional optometre 1, long press (press Press and hold for a period of time) the second function button 21 turns on the liquid crystal display module 50 and so on. However, the function buttons can also be given the function of operating software. For example, if the third function button 22 is repeatedly pressed, the built-in international standard visual acuity chart (Tumbling E Chart), Landolt C Chart and other test interfaces will appear on the liquid crystal display module 50 in turn. When the third function button 22 is stopped being pressed, the current test interface can be started to be used. The direction keys 23 include an up key 231, a down key 232, a left key 233, a right key 234 and an execution key 235 (ok key), which can be used as a tool for executing software design content. For example, when the tester chooses to use the international standard vision chart for vision testing, a random "E" (including the size and opening direction) in the international standard vision chart will be displayed on the liquid crystal display module 50. At this time, the tester needs to use Key 231, down key 232, left key 233 and right key 234 are used to answer the opening direction of "E", so that the control module 60 can determine the tester's vision. When the liquid crystal display module 50 displays "test end", pressing the execution key 235 can jump out of the international standard eye chart test and return to the main menu. It needs to be emphasized again that the types, functions and quantities of the above control components are not used to limit the application of the present invention. Physical input hardware that can be programmed based on actual hardware and software operations is within the scope of the present invention. within the range.

For convenience of explanation, the side of the housing 10 on which the two adjustable eyepiece modules are installed is called the first side 11 , and the side opposite the first side 11 is the second side 12 . To further explain, the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31 are movably installed on the first side 11 of the housing 10 . Here, "movable" means that the distance between the two adjustable eyepiece modules can be adjusted, and the structure of each adjustable eyepiece module itself can also be adjusted, that is, it can be changed relative to the opening on the housing 10 . To achieve the above purpose, the structures of the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31 will be slightly different. Since the two mechanisms are partially obscured by the first side 11 in Figure 2, in order to understand the complete structure, please refer to Figures 3 and 4. FIG. 3 shows a comparison of the structural differences between the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31 in the direction perpendicular to the first side 11 . FIG. 4 shows the first adjustable eyepiece module 30 and the second adjustable eyepiece module 30 . Adjust the overall structure of the eyepiece module 31 in a direction parallel to the first side 11 .

Shown at the top of Figure 3 is the first adjustable eyepiece module 30, which mainly includes a first convex lens 301 and a first concave lens 302. The first convex lens 301 and the first concave lens 302 have a common optical axis. The light emitted by the liquid crystal display module 50 is directed to the two lenses. By adjusting the distance between the two lenses, the distance F between the focus point of the light rays and the first convex lens 301 can be adjusted. In order to achieve the above purpose, the first convex lens 301 is fixed on a first movable plate 303, and the first concave lens 302 is fixed on a second movable plate 304. A second gear rack 305 is installed on the second movable plate 304 and is movably placed on the first movable plate 303. The second gear rack 305 rotates the second movable plate through the rotation of the gear installed on the second micromotor 41. 304 moves in the direction parallel to the optical axis of the first concave lens 302 (along the direction of the double arrows above), so that the first concave lens 302 also moves in the direction of its optical axis to adjust the distance from the first convex lens 301 . Therefore, the distance F will also be adjusted. It should be noted that the positions of the first convex lens 301 and the first concave lens 302 can be interchanged, that is, the first convex lens 301 can move relative to the first concave lens 302 due to the movement of the second movable plate 304. In addition, it can be seen from Figure 4 that a first gear rack 306 is installed on the first movable plate 303. Through the rotation of the gear mounted on the first micromotor 40, the first gear rack 306 moves the first movable plate 303 in a vertical direction parallel to the moving direction of the second movable plate 304 (in the direction of the double arrows above, that is, parallel to the direction of the second movable plate 304). direction of one side 11), so that the distance between the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31, that is, the pupillary distance PD, can be adjusted. Therefore, the portable intelligent multifunctional refractometer 1 can be used by testers with different interpupillary distances, and the interpupillary distance PD of each tester can also be recorded by the portable intelligent multifunctional refractometer 1 .

Shown at the bottom of FIG. 3 is the second adjustable eyepiece module 31, which mainly includes a second convex lens 311 and a second concave lens 312. The second convex lens 311 is also co-optical with the second concave lens 312 . The light emitted by the liquid crystal display module 50 is directed to the two lenses. By adjusting the distance between the two lenses, the distance F' between the focus point of the light rays and the second convex lens 311 can be adjusted. In order to achieve the above purpose, the second convex lens 311 is fixed inside a side surface (bottom surface 13 ) of a housing 10 . The second concave lens 312 is fixed on a third movable plate 313 . A third gear rack 314 is mounted on the third movable plate 313 and is movably placed inside the bottom surface 13 . Through the rotation of the gear mounted on the third micromotor 42, the third gear rack 314 moves the third movable plate 313 upward in a direction parallel to the optical axis of the second concave lens 312 (along the direction of the double arrows below), so that the second concave lens 312 will also move in the direction of its optical axis to adjust the distance from the second convex lens 311. Therefore, the distance F’ will also be adjusted. Similarly, the positions of the second convex lens 311 and the second concave lens 312 can be interchanged, that is, the second convex lens 311 can move relative to the second concave lens 312 due to the movement of the third movable plate 313 .

In this embodiment, the first adjustable eyepiece module 30 is used for the left eye, and the second adjustable eyepiece module 31 is used for the right eye. In practice, the two can be interchanged. During the test, since the test image emitted by the liquid crystal display module 50 will be seen by the left eye and the right eye respectively through the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31, the tester can Apply one eye and let the other eye do the testing. In addition, the distance F shown in Figure 3 is different from the distance F', that is, a test image can be seen by different eyes to different extents (depending on the distance between the focus and the human retina), which can be completely controlled by adjusting the second micro The motor 41 and the third micromotor 42 are used to achieve this. Therefore, with the help of the adjustable font size design on the liquid crystal display module 50 and fine-tuning the distance between the convex lens and the concave lens, the first adjustable eyepiece module 30 and the second adjustable eyepiece module 31 can change the light passing through the interior of the housing 10 The focus position when emitted to the outside simulates the actual distance of 20 feet to 50 feet required for eye refraction examination to a distance of about 10cm, just like the environment of a general vision test. To sum up, each of the first micromotor 40, the second micromotor 41 and the third micromotor 42 can interact with one of the two adjustable eyepiece modules and drive to adjust the corresponding adjustable eyepiece module. Thereby changing the focus position of the light emitted from the inside of the housing 10 to the outside and the distance between the two adjustable eyepiece modules. The actions of these micro motors can be controlled through the control module 60 . Preferably, these micromotors are stepper motors that can precisely control the amount of rotation.

The liquid crystal display module 50 is installed inside the second side 12 of the housing 10 to project images in the direction of the two adjustable eyepiece modules.

The control module 60 is installed inside the housing 10 and is connected with signals to the control components, the micro motors and the liquid crystal display module 50 . In order to illustrate the connections and interaction of these components, please see Figure 5, which shows the liquid crystal display module 50, the control module 60 (shown as a dotted frame), the power supply module 70 (shown as a dotted frame) and the micro motor. Component block diagram. As can be seen from FIG. 5 , the control module 60 includes a flash memory module 61 , a synchronous dynamic random access memory module 62 , a graphics processor 63 , a wireless communication module 64 and a controller 65 . The flash memory module 61 is used for long-term storage of the test results mentioned below, the program code running in the controller 65 and the program code related data, the latter such as the test pattern used for optometry. The synchronous dynamic random access memory module 62 can be used to temporarily store some programs and data that will be used by the controller 65. Once the power is off, all the data stored therein will be lost. The graphics processor 63 is connected with the LCD module 50 via signals to control the display image of the LCD module 50 . The wireless communication module 64 is used to connect with a wireless signal to a receiving device (not shown) outside the portable intelligent multi-functional optometre 1 to transmit the test results to the receiving device, display them on the receiving device, and perform subsequent processing. Analysis assignment. The wireless communication module 50 can be a Bluetooth module or a Wi-Fi module, or both at the same time.

The controller 65 is the core component for the operation of the portable intelligent multi-functional optometre 1, and is connected with these control components, a USB connector 71 of the power supply module 70, the synchronous dynamic random access memory module 62, and the flash memory module. 61. The graphics processor 63, the wireless communication module 64 and the micro-motor signals are connected (the connections between the components are shown by solid lines in Figure 5), and are electrically connected to a power management chip 74 of the power supply module 70, which can be executed The default program is to perform specified operations, temporarily store part of the program code and the data related to the called program code in the synchronous dynamic random access memory module 62, and transmit the stored test results to the wireless communication module 50 through the wireless communication module 50. connected receiving device. The controller 65 may be a programmable logic device chip that can execute an application program (based on program code) in conjunction with a specific operating program or directly execute a specific application program. Therefore, the control module 60 can be regarded as an embedded computer in the portable intelligent multi-functional optometre 1 . The control module 60 also includes other active components, passive components, control chips, etc., which are installed on a circuit board. This technique is well known to those skilled in the art and will not be described in detail.

As mentioned above, the controller 65 (control module 60) can perform specified operations according to the application program it executes. These operations include a) causing the liquid crystal display module 50 to present an operation interface; b) matching the content of the operation interface. , receiving control signals from a plurality of control elements to determine the execution command; c) according to a first execution command to cause the liquid crystal display module 50 to present a specified test pattern; d) according to a second execution command to drive the plurality of a micro motor; e) determine the test result according to a third execution command; and f) record the test result and output the test result according to a fourth execution command. These operations are described below.

In operation a), the operation interface is a series of text, graphics and tables that guide the tester to conduct the vision test and change the content accordingly. The process is provided in accordance with the design of the application and is operated with control elements. In operation b), the execution command is a control signal of a specific control element (such as a long press, a short press), combined with the data displayed on the operating interface, and feedback to the application to execute the next step. For convenience of explanation, each execution command proposed below, such as the first execution command, the second execution command, etc., are only the more important ones among many execution commands, which are the focus of the present invention.

In operation c), the first execution command requires the liquid crystal display module 50 to present the specified test pattern, which refers to the international standard visual acuity chart, the Lang's annular visual acuity chart, the color blindness test (Color Blindness Test) pattern, and the astigmatism test (Astigmatism Test). All or part of a graphic or Duochrome Test graphic. To have a better understanding of this, please see Figures 6 to 9. Figure 6 shows the international standard visual acuity chart and a part of it presented on the liquid crystal display module 50. Figure 7 shows a color blindness test pattern and a part of it presented on the liquid crystal display module 50. Figure 8 shows the astigmatism test pattern. The complete appearance and the pattern presented on the liquid crystal display module 50 are shown in FIG. 9 . The two-color test pattern appears on the liquid crystal display module 50 . In FIG. 6 , a complete international standard visual acuity chart is displayed on the left. The application can randomly select an “E” pattern to be displayed on the liquid crystal display module 50 , and the operation instructions are displayed on the right. The tester can follow the instructions and use the direction buttons 23 to adjust the box to select the "answer", and the application will use the answer to determine the test result, such as whether it is yes or no through the pattern, what the vision test value is, etc. The operation method of Lang's annular visual acuity chart is the same and will not be described here. In FIG. 7 , all color blindness test patterns are displayed on the left, and the application program can randomly select one of the patterns to be displayed on the liquid crystal display module 50 , and instructions for the operation are displayed on the right. The tester can follow the instructions and use the directional buttons 23 to adjust the box to select a number in the graph, and the application will use the selection to determine the test result, such as "Deuteranopia", "Protanopia" or "Tritanopia". In Figure 8, the left side shows the complete appearance of the astigmatism test pattern. The application allows the astigmatism test pattern to be displayed on the liquid crystal display module 50. Through the adjustment of the adjustable eyepiece module, the astigmatism test pattern is useful to the tester. Different senses of line variation allow testers to choose the one with thicker lines as shown on the right. Applications can use this selection to determine test results, such as astigmatism. Line thickness can also be adjusted via controls. In Figure 9, the application separately presents a two-color test pattern with a red and green background and different text combinations to determine the human eye's reception of the pattern, which is also the test result of the application. Operationally, if the letters in the red block look clearer, press up key 231 to simulate -0.25 DS until both sides are balanced; or press key 232 to simulate +0.25 DS until both sides are balanced. It should be noted that the aforementioned display methods are only part of the many aspects of the present invention and do not limit the present invention.

In addition, a technical feature of the present invention is that the test pattern can also simulate the image of a specific object seen through a lens with a specific power. The invention has built-in hundreds of image-processed patterns to simulate and represent the images seen through lenses of different powers. When one of the patterns is displayed on the liquid crystal display module 50 and projected onto the tester's eyes through the adjustable eyepiece module, the tester sees it as if he were wearing lenses of corresponding power. For example, if the pattern simulates 100-degree myopia, the tester will see it as if he is wearing 100-degree myopia lenses, and hyperopia will easily occur. Furthermore, different simulations of seeing the specific object's image through the specific power lenses are displayed simultaneously, which can simulate seeing the specific object's image when the specific power lenses overlap. For example, if the image of an apple viewed through a 100-degree lens and the image of an apple viewed through a 50-degree lens are simultaneously displayed, the tester will see the image of an apple viewed through a 150-degree lens, which seems to be a superposition of lenses of different degrees.

Operation d) is to adjust the adjustable eyepiece module of the portable intelligent multifunctional optometre 1 according to the instructions of the application to change the focus position of the light when it is emitted from the inside of the housing 10 to the outside, allowing the tester to enter different testing environments. Of course, in order to allow different testers to see the information of the operating interface clearly, testers can also manually adjust the adjustable eyepiece module to escape the limitations of the application.

Job e) is the follow-up work of executing job c) and determines the aforementioned test results. Subdivision job e) can have the following sub-steps. First, record the control elements pressed by the user and their operation status according to all or part of the displayed chart or graph. What this sub-step needs to do is to record the decision made by the tester when the liquid crystal display module 50 displays information. Second, combine all or part of the foregoing, the pressed control elements and their operating modes with all or every part of all charts or graphics, the corresponding control elements, the corresponding operating modes of the control elements, and the corresponding eyes. A database of status descriptions is compared. The database is built in the flash memory module 61. For example, the database records the opening direction of each E figure in the international standard vision chart, the control components that need to be operated, and the correct and incorrect operating states of the control components corresponding to the opening direction (for example, for the figure "E" "For example, the up key 231 represents error, the down key 232 represents error, the left key 233 represents error, and the right key 234 represents correct). The eye status is described as whether it meets the visual acuity requirements of the figure, such as a visual acuity of 0.8. Third, select the eye state description corresponding to the identical comparison result as the test result. Due to the correspondence with the database, the tester's test results can be quickly measured.

Assignment f) records the test results determined by assignment e). The fourth execution command can output the test result in many ways. In addition to transmitting it to the receiving device through the wireless communication module 64, it can also transmit it to a device connected by a communication line through the USB connector 71. The output test results are also diverse, such as the test result form shown in Figure 10. The test results form can include the setup date, time, name, Wi-Fi, Bluetooth, and email address from the setup form, allowing the test results form to be emailed.

The power supply module 70 is installed in the casing 10 and is electrically connected to a plurality of micro motors, the liquid crystal display module 50 and the control module 60 (the connections between components are represented by dotted lines in Figure 5) to provide operation conditions for the electrical connection components. required power. The power supply module 70 may further include a USB connector 71, a secondary battery 72, a charge and discharge control chip 73, and a power management chip 74. The USB connector 71 can receive external power and transmit it inside the housing 10; in addition, due to the characteristics of its specifications, the USB connector 71 can transmit information from the outside to the controller 65, such as updating application code and new test patterns. etc., or transmit the test result form from the controller 65 to an external device. The secondary battery 72 , such as a lithium battery, is used as a power storage device of the portable intelligent multifunctional optometre 1 and is controlled by the charge and discharge control chip 73 . The charge and discharge control chip 73 is electrically connected to the USB connector 72 and the secondary battery 72 , and can store the external power received by the USB connector 71 into the secondary battery 72 and output the power in the secondary battery 72 to the power management chip 74 . The power management chip 74 can change the voltage of the power output by the charge and discharge control chip 73 to a plurality of voltage values, such as 3.3V or 5V, and provide them to the components electrically connected thereto respectively.

In terms of application, in addition to being used independently, the portable intelligent multi-functional refractometer 1 can also be installed on a platform 2 as shown in Figure 11, and the platform 2 is connected to an external headset 3. It is convenient for testers to wear on their heads and use.

In summary, the present invention has the following advantages. The invention reduces the traditional large-volume fixed eye examination instrument into a handheld and portable type, but still retains complete functions. The invention makes full use of the powerful computing power of the computer chip to instantly calculate the complex mathematical and optical parameters required for operation, as well as the required graphics results. The large-capacity storage memory can store various graphics and text required for existing eye optometry examinations. The invention uses a graphics processor with high-performance graphics display capabilities and a high-resolution liquid crystal display module, which can display various graphics, text and real-time operation instructions. The present invention uses a combination of concave and convex lenses, combined with adjustable size display fonts and computer software calculations, to simulate the actual distance of 20 feet to 50 feet required for physical eye optometry examination into a distance of about 10cm to match the device. Use in small volumes. In addition, the present invention uses computer graphics processing and special software algorithms to simulate the graphics and text seen by the tester, so the graphics seen by the user are as if they are seen through lenses of different powers and astigmatism lenses at different angles. The effect is the same. Hundreds of charts or graphics are pre-stored in the flash memory module, which can be regarded as virtual lenses and can be recalled for use during testing. Multiple virtual lenses can be used superimposed. Different powers and astigmatism lenses used in traditional optometry will be converted into different pictures by the application software and the intelligent algorithm it uses. After detection, accurate vision results can be obtained through immediate calculation by the controller and comparison with old database data. Through the adjustable eyepiece module and the focus calculation of the screen grid lines, the interpupillary distance of the two eyes can be measured.

Different from existing optometrists, the present invention can be widely used in the following: 1. personal and family use; 2. basic vision examination in school medical rooms; 3. remote areas or villages without sufficient resources or equipment for vision examination; and 4. , as auxiliary or auxiliary equipment in clinics or hospitals.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some modifications and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the appended patent application scope.

1: Portable intelligent multi-functional optometre 2:Platform 3: Headgear 10: Shell 11: First side 12:Second side 13: Bottom surface 20: First function button 21: Second function button 22:Third function button 23: Direction buttons 231:Up key 232:Down button 233:Left button 234: Right click 235:Execute key 30: The first adjustable eyepiece module 301: First convex lens 302: First concave lens 303: First movable board 304: Second movable board 305: Second gear rack 306:The first gear rack 31: Second adjustable eyepiece module 311: Second convex lens 312: Second concave lens 313: The third movable board 314:Third gear rack 40:The first micro motor 41:Second micro motor 42: The third micro motor 50:LCD display module 60:Control module 61:Flash memory module 62:Synchronized dynamic random access memory module 63: Graphics processor 64:Wireless communication module 65:Controller 70:Power supply module 71:USB connector 72: Secondary battery 73: Charge and discharge control chip 74:Power management chip F: distance F’: distance PD: pupillary distance

FIG. 1 is a schematic diagram of the appearance of a portable intelligent multi-functional optometre according to an embodiment of the present invention.

Figure 2 is an exploded diagram of the portable intelligent multifunctional optometre.

FIG. 3 illustrates a comparison of the structural differences between a first adjustable eyepiece module and a second adjustable eyepiece module in a direction perpendicular to a first side surface.

FIG. 4 shows the overall structure of the first adjustable eyepiece module and the second adjustable eyepiece module in a direction parallel to the first side surface.

Figure 5 is a component block diagram of the liquid crystal display module, control module, power supply module and micro motor.

Figure 6 shows the international standard visual acuity chart and its part displayed on the LCD module.

Figure 7 shows the color blindness test pattern and part of it displayed on the LCD module.

Figure 8 shows the complete appearance of the astigmatism test pattern and the pattern presented on the liquid crystal display module.

Figure 9 shows how the two-color test pattern appears on the LCD module.

Figure 10 shows a test results form.

Figure 11 shows a portable intelligent multi-functional optometre installed on a platform, with an external headband connected to the platform.

1: Portable intelligent multi-functional optometre

10: Shell

11: First side

12:Second side

13: Bottom surface

20: First function button

21: Second function button

22:Third function button

23: Direction keys

30: The first adjustable eyepiece module

31: Second adjustable eyepiece module

50:LCD display module

60:Control module

70:Power supply module

Claims (12)

A portable intelligent multifunctional optometre, including: a shell; A plurality of control components are installed on the housing and exposed outside; two adjustable eyepiece modules, movably installed on a first side of the housing; A plurality of micro motors, each micro motor interacts with one of the two adjustable eyepiece modules and is driven to adjust the corresponding adjustable eyepiece module, thereby changing the focus position of the light emitted from the inside of the housing to the outside and the two adjustable eyepiece modules. Adjust the spacing of the eyepiece modules; A liquid crystal display module is installed inside a second side facing the first side of the housing, and projects images in the direction of the two adjustable eyepiece modules; A control module is installed inside the housing and is connected with the plurality of control components, the plurality of micro motors and the liquid crystal display module to perform the following operations: causing the liquid crystal display module to present an operation interface; Execute the default program in accordance with the content of the operating interface, and receive control signals from the plurality of control components to determine the execution command; According to a first execution command, the liquid crystal display module displays a specified test pattern; driving the plurality of micromotors according to a second execution command; Pursuant to a third execution order to determine test results; and Record the test results and output the test results according to a fourth execution command; and A power supply module is installed in the housing and is electrically connected to the plurality of micro motors, the liquid crystal display module and the control module to provide power required for the operation of the electrical connection components. The portable intelligent multi-function refractometer as described in claim 1, wherein the plurality of control components further includes at least one function button and a direction button for inputting signals to the control module. The portable intelligent multifunctional optometre as described in claim 1, wherein a first adjustable eyepiece module includes: a first convex lens fixed on a first movable plate; and A first concave lens is fixed on a second movable plate. A second gear rack is installed on the second movable plate and is movably placed on the first movable plate. The second gear rack is mounted on the micro- The rotation of the gear on one of the motors moves the second movable plate in a direction parallel to the optical axis of the first concave lens, Among them, a first gear rack is installed on the first movable plate. The first gear rack rotates the gear installed on one of the micromotors to move the first movable plate in a direction parallel to the second movable plate. move in the vertical direction. The portable intelligent multifunctional optometre as described in claim 1, wherein a second adjustable eyepiece module includes: a second convex lens fixed inside a side of the housing; and A second concave lens is fixed on a third movable plate. A third gear rack is installed on the third movable plate and can be movably placed on the inside of the side. The third gear rack is installed on the micro motors. The rotation of the gear on the third movable plate moves the third movable plate in a direction parallel to the optical axis of the second concave lens. The portable intelligent multifunctional optometre as described in claim 1, wherein the power supply module further includes: A USB connector to receive external power and transmit information; primary and secondary batteries; A charge and discharge control chip is electrically connected to the USB connector and the secondary battery, stores the external power received by the USB connector into the secondary battery, and outputs the power in the secondary battery; and A power management chip changes the voltage of the power output by the charge and discharge control chip to a plurality of voltage values, which are respectively provided to components electrically connected thereto. The portable intelligent multifunctional optometre as described in claim 5, wherein the control module further includes: A flash memory module to store the test results, program code and program code related data; a synchronous dynamic random access memory module; A graphics processor, signal-connected to the liquid crystal display module to control the display image of the liquid crystal display module; a wireless communication module; and A controller connected to the control components, the USB connector, the synchronous dynamic random access memory module, the flash memory module, the graphics processor, the wireless communication module and the micro motor signals , and is electrically connected to the power management chip, executes the default program to perform the aforementioned operations, temporarily stores part of the program code and the data related to the called program code in the synchronous dynamic random access memory module, and stores the stored The test results are sent to a wirelessly connected receiving device through the wireless communication module. The portable intelligent multifunctional optometre as described in claim 6, wherein the wireless communication module is a Bluetooth module or a Wi-Fi module. The portable intelligent multifunctional refractometer as described in request item 1, wherein the test pattern is an international standard visual acuity chart (Tumbling E Chart), a Landolt C chart (Landolt C Chart), a color blindness test (Color Blindness Test) graphic, astigmatism All or part of the Astigmatism Test pattern or the Duochrome Test pattern. The portable intelligent multi-function refractometer as described in claim 8, wherein the steps of the third execution command to determine the test result are: Record the control elements pressed by the user and their operating status according to all or part of the displayed chart or graph; Describe all or part of the foregoing, the pressed control elements and their operating modes, and all or each part of all charts or graphics stored therein, the corresponding control elements, the corresponding operating modes of the control elements, and the corresponding eye states. A database for comparison; and Select the eye state description corresponding to the identical comparison result as the test result. The portable intelligent multifunctional optometre as described in claim 1, wherein the adjustable eyepiece module changes the focus position when the light is emitted from the inside of the housing to the outside, thereby reducing the 20 to 50 feet required for eye refraction examination. The actual distance is simulated to be about 10cm. The portable intelligent multifunctional refractometer as described in claim 1, wherein the test pattern simulates the image of a specific object seen through a lens with a specific power. The portable intelligent multi-function refractometer as described in claim 11, wherein different images simulating seeing the specific object through specific power lenses are displayed simultaneously, and can simulate the image of the specific object being seen when the specific power lenses overlap.