Visual direct-reading pupil height measuring instrument and calibration method thereof

Abstract

The invention discloses a visual direct-reading pupil height measuring instrument and a calibration method thereof. According to the invention, the first electric slide block and the second electric slide block internally comprise potentiometer type displacement sensors, the sensors can drive the electric brushes to slide on the film resistor substrate when the slide blocks move, so that the resistance is changed, and according to the Ohm's law, the change of the resistance can cause the change of the voltage; the displacement of the sliding blocks can be calculated by measuring voltage changes, the pupil center position is converted into a quantifiable pupil height value, a complete two-dimensional coordinate system is constructed through the vertical rod, the vertical axis of the second electric sliding block, the horizontal axis of the cross beam and the horizontal axis of the first electric sliding block, and then automatic calculation of the scale marks is achieved. Through combination of the components, manual sliding can be replaced, manual operation errors are reduced, rapid and accurate positioning in the horizontal direction is achieved, and the measurement efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lens matching equipment, and particularly relates to a visual direct-reading pupil height measuring instrument and a calibration method thereof. BACKGROUND

[0002] Lens matching equipment is a general term of professional instruments and tools used in the whole process of eye refraction examination, lens processing and manufacturing, and glasses assembly and adjustment. The lens matching equipment is various in types and can be roughly classified into refraction equipment, processing equipment, auxiliary equipment and adjustment and assembly equipment according to functions. The visual direct-reading pupil height measuring instrument is a professional optical measuring equipment used for accurately measuring the vertical distance between the pupil center and a specific reference point of a frame. However, the existing device depends on the marking with a marking pen and the secondary measurement with a ruler in the process of pupil height measurement. Due to the marking deviation and frame movement in the manual measurement process, errors exist in the measurement, and the pupil height cannot be measured by automatic means. SUMMARY

[0003] The application aims to solve the above problems and provide a visual direct-reading pupil height measuring instrument and a calibration method thereof.

[0004] The technical scheme adopted by the application is as follows: a fixing assembly, an adjusting assembly and a measuring instrument assembly are included. The adjusting assembly is attached to the inside of the fixing assembly. The other end of the adjusting assembly is connected to the measuring instrument assembly. The measuring instrument assembly includes a measuring instrument shell. A plurality of crossbeams are fixedly installed in the measuring instrument shell. First electric sliding blocks are attached to the outer surfaces of the crossbeams. Vertical rods are fixedly installed between the same inner sides of the first electric sliding blocks. Second electric sliding blocks are attached to the outer surfaces of the vertical rods. A fixed frame is fixedly installed on the inner side of the measuring instrument shell. A hybrid light source is fixedly installed at the lower end of the fixed frame. A wide-angle camera is fixedly installed at the upper end of the fixed frame.

[0005] In a preferred embodiment, a battery compartment is fixedly installed on the lower surface of the measuring instrument shell. A charging interface is fixedly installed on the lower outer surface of the battery compartment.

[0006] In a preferred embodiment, a single-chip microcomputer is fixedly installed on the front outer surface of the battery compartment.

[0007] In a preferred embodiment, a communication box is fixedly installed on the rear outer surface of the battery compartment.

[0008] In a preferred embodiment, a touch panel is fixedly installed on the outer surface of the single-chip microcomputer. A plurality of buttons are fixedly installed on the lower surface of the touch panel.

[0009] In a preferred implementation form, the inside of the fixing assembly comprises a connecting frame, a telescopic supporting column is fixedly arranged in the middle of the inside of the connecting frame, a handle is fixedly arranged on the lower end of the telescopic supporting column, and a base is fixedly arranged on the lower surface of the telescopic supporting column.

[0010] In a preferred implementation form, the inside of the adjusting assembly comprises a sliding groove, and a damping sliding block is arranged in the sliding groove.

[0011] In a preferred implementation form, a plurality of cross screws are screwedly arranged on the upper end of the damping sliding block, and rubber pads are arranged on the lower surface of the cross screws.

[0012] In a preferred implementation form, a connecting rotating shaft is fixedly arranged on the outer surface of the damping sliding block.

[0013] In conclusion, due to the adoption of the above technical scheme, the present application has the following beneficial effects: 1、In the present application, the measuring instrument assembly can integrate the core functional components into one, form an independent measuring execution unit, ensure the collaborative work of the components, and fix all the electronic elements in the inside of the measuring instrument shell as the main frame of the device, and reserve space in the inside of the measuring instrument shell to provide positions for the installation of other components. The cross beam serves as the installation track of the first electric sliding block, provides the sliding reference in the horizontal direction, ensures the straightness and stability of the movement track of the first electric sliding block, and drives the vertical rod and the second electric sliding block to realize the horizontal position adjustment to adapt to the measurement requirements of different pupil distances or frame widths. The vertical rod serves as the sliding reference of the second electric sliding block, provides the movement track in the vertical direction, and ensures the stable movement of the second electric sliding block in the vertical direction. The front outer surfaces of the cross beam and the vertical rod are provided with scale marks, which are convenient for the staff to know the position of the displacement of the sliding block. The second electric sliding block slides up and down along the vertical rod to realize the vertical position adjustment and accurately align the pupil height. The inside of the first electric sliding block and the second electric sliding block comprises a potentiometer type displacement sensor. When the sliding block moves, the sensor drives the brush to slide on the film resistance substrate, so that the resistance changes, the pupil center position is converted into a quantifiable pupil height value, according to Ohm's law, the change of the resistance will cause the change of the voltage, and the displacement of the sliding block can be calculated by measuring the voltage change. The vertical rod and the second electric sliding block vertical shaft and the cross beam and the first electric sliding block horizontal shaft construct a complete two-dimensional coordinate system, and then the automatic calculation of the scale mark is realized. The combination of the above components can replace manual sliding, reduce human operation errors, realize rapid and accurate positioning in the horizontal direction, and improve the measurement efficiency.

[0014] In the application, the fixed frame accurately positions the relative positions of the mixed light source and the wide-angle camera, ensures that the light source illumination range and the camera view range are completely matched, avoids optical deviation, the mixed light source contains LED lighting and laser emitter inside, the LED light emits uniform and soft visible light to illuminate the user's eye, improves the contrast of the pupil and iris in a relatively dark environment, facilitates the recognition of the wide-angle camera, the laser can emit a clear and visible laser beam with a wavelength that meets the safety standard, which is directly projected onto the lens surface or pupil area of the user, as a positioning mark, directly marks the reference point, the wide-angle camera captures the image of the user's eyes and the frame area in real time, captures the pupil position and the key features of the lower edge of the frame, and provides original image data for pupil height calculation, by converting the traditional subjective mark into objective instrument measurement in the device, the mark shift and frame movement in the manual measurement process are avoided as much as possible, and errors in measurement are prevented, and the pupil height can be measured by automatic means.

[0015] In the application, the inside of the battery compartment contains a rechargeable battery, which provides stable direct current power supply for all parts of the device, the charging interface adopts a Type-C interface, which can also be used as a data transmission channel, connects a computer to export measurement data, and charges the battery in the battery compartment through an external power supply, supports repeated use of the device, the single-chip microcomputer receives signals from each part, processes data through a preset program and sends control instructions, the single-chip microcomputer replaces manual judgment and calculation, and the logical control of each part is coordinated through the slider positioning-camera shooting-data output, which reduces human intervention errors, the communication box is built-in Bluetooth, Wi-Fi and NFC modules, which realize wireless data synchronization between the device and the external terminal, transmit measurement results or receive control instructions, the touch panel and the buttons are electrically connected with the single-chip microcomputer, measurement parameters and device status are displayed through a graphical interface, users can set parameters through touch operation, and measurement step prompts and error prompts are displayed in real time to assist users to operate in a standard manner, the buttons are triggered by high-frequency function one-key, which reduces touch menu level jumping, saves time in busy lens fitting scenarios, and when the touch panel fails, the physical button can be used as a backup operation mode to ensure that the basic functions of the device are available. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front side structure schematic diagram in the application; Figure 2 It is a back side structure schematic diagram in the application; Figure 3 It is a structure schematic diagram of the adjusting assembly in the application; Figure 4 It is a structure schematic diagram of the inside of the measuring instrument assembly in the application; Figure 5 It is a structure schematic diagram of the outside of the measuring instrument assembly in the application; Figure 6 Fig. 1 is a schematic diagram of the internal structure of the measuring instrument assembly in the application.

[0017] Marked in the figure: 1 - fixed assembly, 2 - adjustment assembly, 3 - measuring instrument assembly, 11 - connecting frame, 12 - telescopic support column, 13 - handle, 14 - base, 21 - sliding groove, 22 - damping sliding block, 23 - cross screw, 24 - rubber pad, 25 - connecting rotating shaft, 31 - measuring instrument shell, 32 - cross beam, 33 - first electric sliding block, 34 - vertical rod, 35 - second electric sliding block, 36 - fixed frame, 37 - mixed light source, 38 - wide-angle camera, 39 - battery compartment, 310 - charging interface, 311 - single-chip microcomputer, 312 - communication box, 313 - touch panel, 314 - button. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0019] REFERENCE Figures 1-5, including a fixing assembly 1, an adjusting assembly 2 and a measuring instrument assembly 3; the fixing assembly 1 is internally attached to the adjusting assembly 2; the other end of the adjusting assembly 2 is connected to the measuring instrument assembly 3; the measuring instrument assembly 3 internally comprises a measuring instrument shell 31; a plurality of cross beams 32 are fixedly installed in the measuring instrument shell 31; first electric sliding blocks 33 are attached to the outer surfaces of the cross beams 32; vertical rods 34 are fixedly installed between the same inner sides of the first electric sliding blocks 33; second electric sliding blocks 35 are attached to the outer surfaces of the vertical rods 34; a fixed frame 36 is fixedly installed on the inner side of the measuring instrument shell 31; a mixed light source 37 is fixedly installed at the lower end of the fixed frame 36; a wide-angle camera 38 is fixedly installed at the upper end of the fixed frame 36; the fixing assembly 1 is used to ensure that the device is placed on an external table top and does not displace during the measurement process, thereby maintaining the relative position stability of the table top and the measurement reference; the adjusting assembly 2 can provide space for adjusting the positions of the lenses on the left and right sides of the same frame, so that the left and right lenses in the same frame can be measured without the need to reinstall the equipment; the measuring instrument assembly 3 can integrate the core functional components into one, thereby forming an independent measurement execution unit and ensuring the collaborative work of the components; the measuring instrument shell 31 serves as the main frame of the equipment, fixes all the electronic elements in the interior and reserves space in the interior to provide positions for the installation of other components; the cross beams 32 serve as the installation tracks of the first electric sliding blocks 33, provide horizontal sliding references and ensure the straightness and stability of the movement tracks of the first electric sliding blocks 33; the first electric sliding blocks 33 are driven to slide horizontally along the cross beams 32 by the motors contained in the first electric sliding blocks 33, thereby driving the vertical rods 34 and the second electric sliding blocks 35 to realize horizontal position adjustment and adapt to the measurement requirements of different pupil distances or frame widths; the vertical rods 34 serve as the sliding references of the second electric sliding blocks 35, provide vertical movement tracks and ensure the stable movement of the second electric sliding blocks 35 in the vertical direction; the second electric sliding blocks 35 slide up and down along the vertical rods 34, thereby realizing vertical position adjustment and accurately aligning the pupil height; the first electric sliding blocks 33 and the second electric sliding blocks 35 internally contain potentiometer type displacement sensors; when the sliding blocks move, the sensors drive the brushes to slide on the film resistance substrates, thereby causing the resistance to change, converting the pupil center position into quantifiable pupil height values; according to Ohm's law, the change of the resistance will cause the change of the voltage; the displacement of the sliding blocks can be calculated by measuring the voltage change; the vertical shafts of the vertical rods 34 and the second electric sliding blocks 35 and the horizontal shafts of the cross beams 32 and the first electric sliding blocks 33 construct a complete two-dimensional coordinate system, thereby realizing the automatic calculation of the scale markings; the combination of the above components can replace manual sliding, reduce human operation errors, realize rapid and accurate positioning in the horizontal direction, improve the measurement efficiency; the fixed frame 36 accurately positions the relative positions of the mixed light source 37 and the wide-angle camera 38, ensures that the light source illumination range and the camera view range are completely matched, avoids optical deviation, and the mixed light source 37 internally contains LED illuminating lamps and laser emitters,The LED light emits uniform and soft visible light to illuminate the user's eyes. By improving the contrast between the pupil and the iris in a dimly lit environment, the wide-angle camera 38 can easily identify the target. The laser can emit a clear and visible laser beam with a wavelength that meets safety standards, which is directly projected onto the user's lens surface or pupil area as a positioning marker. The wide-angle camera 38 captures the image of the user's eyes and frame area in real time, and captures the pupil position and key features of the lower edge of the frame to provide raw image data for pupil height calculation. By converting traditional subjective markers into objective instrument measurements, the device can minimize marker shifts and frame movements that occur during manual measurement, prevent measurement errors, and enable automatic measurement of pupil height.

[0020] Referring to Figure 5 With Figure 6 , the lower surface of the measuring instrument housing 31 is fixedly installed with a battery compartment 39, and the lower outer surface of the battery compartment 39 is fixedly installed with a charging interface 310. The inside of the battery compartment 39 contains a rechargeable battery, which provides stable direct current power for all components of the device. The charging interface 310 uses a Type-C interface, which can also serve as a data transmission channel. It can connect to a computer to export measurement data and charge the battery in the battery compartment 39 through an external power supply, supporting repeated use of the device.

[0021] Referring to Figure 6 , the front outer surface of the battery compartment 39 is fixedly installed with a single-chip microcomputer 311, which receives signals from various components, processes data through pre-set programs, and issues control instructions. The single-chip microcomputer 311 replaces manual judgment and calculation, and controls the cooperation of various components through the logic of slider positioning-camera shooting-data output, reducing human intervention errors.

[0022] Referring to Figure 5 With Figure 6 , the rear outer surface of the battery compartment 39 is fixedly installed with a communication box 312, which is built-in with Bluetooth, Wi-Fi and NFC modules to realize wireless data synchronization between the device and external terminals, and to transmit measurement results or receive control instructions.

[0023] Referring to Figure 1 , Figure 5 With Figure 6The outer surface of the single-chip microcomputer 311 is fixedly installed with a touch panel 313, and the lower surface of the touch panel 313 is fixedly installed with a plurality of buttons 314. The touch panel 313 and the buttons 314 are electrically connected with the single-chip microcomputer 311. The measurement parameters and the equipment state are displayed through a graphical interface. The user can set parameters through touch operation. The measurement steps and error prompts are displayed in real time. The user can operate normally. The button 314 triggers the high-frequency function one key to reduce the touch menu level jump, saves time in the busy spectacle fitting scene, and the physical button can be used as a backup operation mode when the touch panel 313 fails, ensuring that the basic functions of the equipment are available.

[0024] With reference to Figure 1 With reference to Figure 2 The inner part of the fixing assembly 1 comprises a connecting frame 11. The inner part of the connecting frame 11 is fixedly installed with a telescopic support column 12. The lower end of the outer surface of the telescopic support column 12 is fixedly installed with a handle 13. The lower surface of the telescopic support column 12 is fixedly installed with a base 14. The connecting frame 11 serves as the core support structure of the fixing assembly 1, connects and carries related components, and provides a stable frame for the entire fixing assembly 1, ensuring the structural strength when the frame is fixed. The telescopic support column 12 is a damping telescopic support column composed of multiple sleeves. The sleeves are connected through damping friction structures to realize telescopic positioning without the need for additional locking devices. After stretching or compression to the target height, the telescopic support column 12 can be fixed by relying on the friction force, thereby flexibly adjusting the overall height of the device according to the user's sitting posture, head height, or table height, reducing measurement errors caused by height mismatch. The handle 13 increases the friction between the hand and the support column to prevent direct contact between the hand and the metal surface of the support column when moving the device, reducing hand fatigue. The base 14 serves as the basic component that contacts the device with the placement surface, expands the support area of the device, disperses pressure, and enhances overall stability.

[0025] With reference to Figure 1 With reference to Figure 3 The inner part of the adjusting assembly 2 comprises a sliding groove 21. The inner part of the sliding groove 21 is fixedly installed with a damping sliding block 22. The sliding groove 21 provides a sliding track for the damping sliding block 22 to limit the horizontal movement direction of the damping sliding block 22, ensuring smooth movement of the sliding block along the preset path. The upper surface of the sliding groove 21 is provided with a fixed groove to provide conditions for fixing the damping sliding block 22. The damping sliding block 22 slides along the sliding groove 21 to drive the connected components to adjust the position. At the same time, the damping characteristic is used to realize resistance control during the sliding process. The damping characteristic makes the sliding block not suddenly slide due to external force when moving, and can be stably stopped at any position, facilitating the user to accurately adjust the horizontal position of the device on the outer surface of the frame.

[0026] With reference to Figure 3The upper end of the damping sliding block 22 is threadedly installed with multiple cross screws 23, the lower surface of the cross screw 23 is installed with a rubber pad 24, the combination of the cross screw 23 and the rubber pad 24 is adopted, the cross screw 23 is screwed into the damping sliding block 22, the cross screw 23 can be adjusted by rotating, the rubber pad 24 below the cross screw 23 can be extruded, the rubber pad 24 can be closely attached between the sliding groove 21 and the cross screw 23, the friction between the sliding groove 21 and the damping sliding block 22 is enhanced, the locking of the device position is realized, when the cross screw 23 is screwed, the rubber pad 24 is extruded and closely contacts with the positioning groove of the sliding groove 21, the friction is increased through the elastic deformation of the rubber, and the sliding block locking is assisted.

[0027] With reference to Figure 3 The outer surface of the damping sliding block 22 is fixedly installed with a connecting shaft 25, the connecting shaft 25 connects the damping sliding block 22 and the measuring instrument assembly 3, the connecting component is allowed to rotate by a certain angle around the axis of the connecting shaft 25, and it is convenient for the staff to observe the eye of the user without taking down the equipment.

[0028] Working principle: The fixed assembly 1 is used to ensure that the device is placed on the external desktop, and the relative position between the desktop and the measurement reference is stable during the measurement process. The adjustment assembly 2 can provide space for adjusting the left and right lens positions of the same frame, so that the left and right lenses in the same frame can be measured without reinstalling the equipment. The measuring instrument assembly 3 integrates the core functional components into one, forming an independent measurement execution unit, ensuring the cooperation of each component. The measuring instrument shell 31 is the main frame of the device, fixing all electronic components inside, and reserving space for the installation of other components. The crossbeam 32 is the installation track of the first electric slide 33, providing a horizontal sliding reference to ensure the straightness and stability of the first electric slide 33 movement track. The first electric slide 33 is driven by the motor inside to slide horizontally along the crossbeam 32, driving the vertical rod 34 and the second electric slide 35 to realize horizontal position adjustment, adapting to different pupil distances or frame widths. The vertical rod 34 provides a vertical movement track for the second electric slide 35, ensuring stable movement in the vertical direction. The front surface of the crossbeam 32 and the vertical rod 34 is provided with a scale ruler, which is convenient for the staff to understand the position of the slide displacement. The second electric slide 35 slides up and down along the vertical rod 34 to realize vertical position adjustment and accurately align the pupil height. The first electric slide 33 and the second electric slide 35 contain a potentiometer displacement sensor. When the slide moves, the brush on the film resistor substrate will slide, causing the resistance to change, converting the pupil center position into a quantifiable pupil height value. According to Ohm's law, the change of resistance will cause the change of voltage. By measuring the voltage change, the displacement of the slide can be calculated. The vertical axis of the vertical rod 34 and the second electric slide 35, and the horizontal axis of the crossbeam 32 and the first electric slide 33 form a complete two-dimensional coordinate system, and the scale is automatically calculated. The above components can replace manual sliding, reduce human error, realize rapid and accurate positioning in the horizontal direction, and improve measurement efficiency. The fixed frame 36 accurately positions the relative position of the mixed light source 37 and the wide-angle camera 38, ensuring that the light source illumination range and the camera view range are completely matched, avoiding optical deviation. The mixed light source 37 contains LED lighting and laser emitter. The LED light emits uniform and soft visible light to illuminate the user's eye. It improves the contrast of the pupil and iris in a dark environment, making it easier for the wide-angle camera 38 to identify. The laser emits a clear and visible laser beam with a wavelength that meets safety standards, directly projecting onto the user's lens surface or pupil area as a positioning marker. The wide-angle camera 38 captures the image of the user's eyes and frame area in real time, captures the pupil position and frame lower edge key features, and provides original image data for pupil height calculation. By converting traditional subjective marking into objective instrument measurement in this device,In order to avoid the mark deviation and the frame movement in the manual measurement process, the error in the measurement can be prevented, and the pupil height can be measured through the automatic means.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0030] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by the equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A visual direct-reading pupil height measuring instrument, comprising a fixed assembly (1), an adjustment assembly (2), and a measuring instrument assembly (3), characterized in that: An adjustment assembly (2) is fitted inside the fixed assembly (1). A measuring instrument assembly (3) is connected to the other end of the adjustment assembly (2). The measuring instrument assembly (3) contains a measuring instrument housing (31). Multiple crossbeams (32) are fixedly installed inside the measuring instrument housing (31). A first electric slider (33) is fitted to the outer surface of the crossbeams (32). A vertical rod (34) is fixedly installed between the same inner sides of the first electric slider (33). A second electric slider (35) is fitted to the outer surface of the vertical rod (34). A fixed frame (36) is fixedly installed inside the measuring instrument housing (31). A hybrid light source (37) is fixedly installed inside the lower end of the fixed frame (36). A wide-angle camera (38) is fixedly installed inside the upper end of the fixed frame (36).

2. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: A battery compartment (39) is fixedly installed on the lower surface of the measuring instrument housing (31), and a charging interface (310) is fixedly installed on the lower outer surface of the battery compartment (39).

3. The visual direct-reading pupil height measuring instrument as described in claim 2, characterized in that: A microcontroller (311) is fixedly installed on the front outer surface of the battery compartment (39).

4. The visual direct-reading pupil height measuring instrument as described in claim 2, characterized in that: A communication box (312) is fixedly installed on the rear outer surface of the battery compartment (39).

5. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: A touch panel (313) is fixedly mounted on the outer surface of the microcontroller (311), and a plurality of buttons (314) are fixedly mounted on the lower surface of the touch panel (313).

6. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: The fixed assembly (1) contains a connecting frame (11), and a telescopic support column (12) is fixedly installed in the middle of the connecting frame (11). A handle (13) is fixedly installed on the lower outer surface of the telescopic support column (12), and a base (14) is fixedly installed on the lower surface of the telescopic support column (12).

7. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: The adjustment assembly (2) contains a groove (21) inside, and a damping slider (22) is fitted inside the groove (21).

8. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: The upper end of the damping slider (22) is threaded with multiple cross screws (23), and the lower surface of the cross screws (23) is fitted with a rubber pad (24).

9. The visual direct-reading pupil height measuring instrument as described in claim 1, characterized in that: A connecting shaft (25) is fixedly installed on the outer surface of the damping slider (22).

10. The visual direct-reading pupil height measuring instrument and its calibration method as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: The fixing assembly (1) is used to ensure that the device does not shift during the measurement process when placed on an external table, maintaining the relative position stability between the table and the measurement reference. The adjusting assembly (2) provides space for adjusting the position of the left and right lenses on the same frame, allowing the device to measure the left and right lenses in the same frame without reinstalling the equipment. The measuring instrument assembly (3) integrates the core functional components into one unit, forming an independent measurement execution unit, ensuring that all components work together. The measuring instrument housing (31) serves as the main frame of the equipment, fixing the internal components. All electronic components are housed within the frame, with internal space reserved for the installation of other components. The crossbeam (32) serves as the mounting track for the first electric slider (33), providing a horizontal sliding reference to ensure the straightness and stability of the first electric slider (33)'s trajectory. The first electric slider (33) is driven by an internally contained motor to slide horizontally along the crossbeam (32), thereby driving the vertical rod (34) and the second electric slider (35) to achieve horizontal position adjustment, adapting to the measurement needs of different pupillary distances or frame widths. The vertical rod (34) serves as the mounting track for the second electric slider (35). The sliding reference of 35 provides a vertical motion track to ensure that the second electric slider (35) moves stably in the vertical direction. The front outer surface of the crossbeam (32) and the vertical rod (34) are both equipped with scales to facilitate the staff to understand the position of the slider displacement. The second electric slider (35) slides up and down along the vertical rod (34) to realize vertical position adjustment and accurately align the pupil height. The first electric slider (33) and the second electric slider (35) contain potentiometer-type displacement sensors. When the slider moves, the sensor will drive the brush on the film resistor substrate. Slide the slider upwards to change the resistance, converting the pupil center position into a quantifiable pupil height value. According to Ohm's law, the change in resistance will lead to a change in voltage. By measuring the voltage change, the displacement of the slider can be calculated. A complete two-dimensional coordinate system is constructed with the vertical axis of the vertical rod (34) and the second electric slider (35), the horizontal axis of the beam (32) and the first electric slider (33), and then the automatic calculation of the scale is realized. The combination of the above components can replace manual sliding, reduce human operation error, realize fast and accurate positioning in the horizontal direction, and improve measurement efficiency. Step 2: Fix the frame (36) to accurately position the relative positions of the hybrid light source (37) and the wide-angle camera (38), ensuring that the illumination range of the light source is completely matched with the field of view of the camera, avoiding optical deviation. The hybrid light source (37) contains LED lighting and laser emitter. The LED light emits uniform and soft visible light to illuminate the user's eyes. By improving the contrast between the pupil and iris in a dark environment, it is easier for the wide-angle camera (38) to recognize. The laser emits a clear, visible laser beam with a wavelength that meets safety standards, which is directly projected onto the user's lens surface or pupil area as a positioning mark to intuitively mark the measurement reference point. The wide-angle camera (38) captures images of the user's eyes and the frame area in real time, capturing the pupil position and key features of the lower edge of the frame, providing raw image data for pupil height calculation. By converting the traditional subjective marking into an objective instrument measurement method in this device, the marking offset and frame movement that occur during manual measurement are avoided as much as possible, preventing errors in measurement. The pupil height can be measured by automated means. Step 3: The battery compartment (39) houses a rechargeable battery, providing a stable DC power supply for all components of the device. The charging interface (310) uses a Type-C interface, which can also serve as a data transmission channel to connect to a computer to export measurement data and charge the battery in the battery compartment (39) via an external power source, supporting repeated use of the device. The microcontroller (311) receives signals from each component, processes the data through a preset program, and issues control commands. The microcontroller (311) replaces manual judgment and calculation, controlling the collaborative work of each component through the logic of slider positioning - camera shooting - data output, reducing human intervention errors. The communication box (312) has built-in Bluetooth, Wi-Fi, and NFC. The module enables wireless data synchronization between the device and external terminals, transmits measurement results or receives control commands. The touch panel (313) and buttons (314) are electrically connected to the microcontroller (311). The measurement parameters and device status are displayed through a graphical interface. Users can set parameters through touch operation and display measurement step prompts and error prompts in real time to assist users in standardized operation. The buttons (314) are triggered by a high-frequency function, reducing the number of touch menu levels and saving time in busy eyeglass fitting scenarios. In addition, when the touch panel (313) fails, the physical button (314) can be used as a backup operation mode to ensure that the basic functions of the device are available. Step 4: The slide groove (21) provides a sliding track for the damping slider (22), limiting the horizontal movement direction of the damping slider (22) and ensuring that the slider moves smoothly along the preset path. The upper surface of the slide groove (21) has a fixing groove to provide conditions for fixing the damping slider (22). The damping slider (22) slides along the slide groove (21), driving the connected components to adjust their position. Simultaneously, the damping characteristics are used to control the resistance during the sliding process. The damping characteristics prevent the slider from suddenly sliding due to external force, allowing it to remain stably at any position, facilitating precise adjustment of the device's horizontal position on the outer surface of the frame. A rubber pad (24) is fitted onto the lower surface of the cross screw (23). A combination of the cross screw (23) and the rubber pad (24) is used. The cross screw (23) is threaded into the damping slider (22). In 22), by rotating the cross screw (23), the rubber pad (24) under the cross screw (23) can be squeezed, so that the rubber pad (24) can fit tightly between the slide groove (21) and the cross screw (23), thereby increasing the friction between the slide groove (21) and the damping slider (22) and locking the position of the device. When the cross screw (23) is turned, the rubber pad (24) is squeezed and comes into close contact with the positioning groove of the slide groove (21). The friction is increased by the elastic deformation of the rubber, which helps to lock the slider. The connecting shaft (25) connects the damping slider (22) and the measuring instrument assembly (3), allowing the connecting parts to rotate around the axis of the connecting shaft (25) at a certain angle, so that the staff can observe the user's eyes without removing the equipment.

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