Eye focusing system and diagnostic device

Abstract

The utility model discloses an eye focusing system and diagnostic equipment, comprising a detection mechanism, detection light, a photoelectric position sensor assembly, a positioning assembly and a main control board. And the detection mechanism is arranged on the positioning assembly and is used for detecting eyeballs. The positioning assembly is electrically connected to the main control board and is used for adjusting the spatial position of the detection mechanism. The detection light is electrically connected to the main control board and is used for providing light in the system. The photoelectric position sensor assembly is electrically connected to the main control board and used for converting light information in the system into space information. The technical scheme of the utility model has the advantages of saving the cost of the eye focusing system and quickly focusing.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to an eye focusing system and a diagnostic device using the eye focusing system. Background Art

[0002] Nowadays, mobile devices are developing rapidly. The number of mobile phones, tablets, smart watches and other display devices is increasing, which makes more and more users overuse their eyes, which is easy to cause eye diseases. Ophthalmic diagnostic equipment is a device specially designed for detecting eyes. The diagnostic equipment first locates the patient's eye position, and then collects the patient's eye information through scanning instruments.

[0003] In the prior art, a linear array camera or a high-speed camera is used in conjunction with an algorithm to first take one or more images of the eyeball, then the position of the eyeball in the image is recognized by the algorithm, and then the scanning device is aimed at the eyeball to achieve the focus tracking function. However, this method is costly and has low recognition efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide an eye focusing system, aiming to solve the problems of high cost and low recognition efficiency of existing ophthalmic diagnostic equipment.

[0005] To achieve the above objectives, the utility model provides an eye focusing system, comprising:

[0006] A housing, wherein the housing is provided with a mounting cavity and a detection port communicating with the mounting cavity;

[0007] A positioning assembly, the positioning assembly comprising a detection lamp and a photoelectric position sensor assembly disposed in the mounting cavity, the detection lamp being used to provide light at the detection port, and the photoelectric position sensor assembly being used to capture and identify light;

[0008] A detection mechanism, the detection mechanism is disposed on the positioning component; and

[0009] A main control board, wherein the main control board is disposed in the installation cavity, the main control board is electrically connected to the detection mechanism, the detection light and the photoelectric position sensor assembly, and the main control board is used to control the detection mechanism to detect the eyeball.

[0010] Optionally, the positioning assembly further comprises a driving device, wherein the driving device is provided with an X-axis motion mechanism, a Y-axis motion mechanism and a Z-axis motion mechanism;

[0011] The Y-axis motion mechanism is arranged in the installation cavity, the X-axis motion mechanism is arranged in the Y-axis motion mechanism, and the Z-axis motion mechanism is arranged in the X-axis motion mechanism;

[0012] The positioning component and the detection mechanism are arranged on the Z-axis motion mechanism, and drive the positioning component and the detection mechanism to move.

[0013] Optionally, the driving device includes two X-axis motion mechanisms, two Y-axis motion mechanisms and two Z-axis motion mechanisms, and each Z-axis motion mechanism is connected to a detection mechanism.

[0014] Optionally, the X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism each include a motor, a lead screw and a guide rail;

[0015] The lead screw and the guide rail are arranged and connected in the same direction, the motor is connected to the lead screw to drive the lead screw to move, and the main control board is electrically connected to the motor to control the movement parameters of the motor.

[0016] Optionally, the photoelectric position sensor assembly includes a one-dimensional photoelectric position sensor and a two-dimensional photoelectric position sensor;

[0017] The one-dimensional photoelectric position sensor is arranged on the driving device, and the one-dimensional photoelectric position sensor is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the X-axis direction;

[0018] The two-dimensional photoelectric position sensor is arranged on the driving device, and the two-dimensional photoelectric position sensor is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the Y-axis and Z-axis directions.

[0019] Optionally, the Z-axis motion mechanism is provided with a frame, the detection mechanism is provided on the frame, the one-dimensional photoelectric position sensor is provided on the frame and is located on one side of the detection mechanism, and the two-dimensional photoelectric position sensor is provided on the frame and is located on the other side of the detection mechanism, and the one-dimensional photoelectric position sensor and the two-dimensional photoelectric position sensor move simultaneously with the detection mechanism;

[0020] The two detection lights are arranged on the frame, located at both sides of the detection mechanism, or one detection light is arranged on the Z-axis motion mechanism, and the other detection light is arranged on the Y-axis motion mechanism.

[0021] Optionally, the photoelectric position sensor assembly further includes a focusing assembly, which is movably disposed in the mounting cavity. The focusing assembly is provided with a light-guiding lens, which is located between the detection lamp and the detection port and is used to guide and adjust the light emitted by the detection lamp to the detection port.

[0022] Optionally, the focusing assembly includes a bracket and a mounting seat, the bracket is arranged in the mounting cavity or the positioning assembly, the mounting seat is connected to the bracket, the mounting seat is provided with a mounting groove, and the light guide lens is arranged in the mounting groove.

[0023] Optionally, the housing is provided with an adjustment hole communicating with the mounting cavity, an end of the bracket away from the mounting seat is provided with an adjustment shaft, the adjustment shaft is passed through the adjustment hole, and the focusing assembly further comprises an adjustment hand wheel, the adjustment hand wheel is connected to the adjustment shaft to adjust the position of the adjustment shaft in the adjustment hole;

[0024] And / or, the focusing assembly also includes a rotating motor, which is arranged at one end of the bracket adjacent to the mounting seat, the output shaft of the rotating motor is connected to the mounting seat, and the mounting seat is rotatably connected to the bracket; wherein the rotating motor drives the mounting seat to drive the light guide lens to rotate relative to the bracket to adjust the incident angle of the light guide lens.

[0025] The utility model also provides a diagnostic device, which comprises:

[0026] Machine base;

[0027] Any one of the above-mentioned eye focusing systems, wherein the eye focusing system is arranged on the base;

[0028] A display screen is arranged on the base, and is used to display the imaging of the eye focusing system.

[0029] The eye focusing system of the technical solution of the utility model includes a shell, a positioning component, a detection light, a photoelectric position sensor component, a detection mechanism and a main control board. When the patient's eyeball information is to be detected, the patient's eyeball is moved to the detection port, and the eye is facing the detection mechanism. At this time, the detection light begins to turn on and off, and the brightness of the detection light is very small, which will not cause irritation to the eyeball. After the light emitted by the detection light irradiates the patient's eyeball, the reflected light reaches the photoelectric position sensor. The photoelectric position sensor converts the information of the light received in different directions into electrical signals of different sizes, and transmits the electrical signals to the main control board. The main control board processes the information transmitted by the photoelectric position sensor to obtain the position of the eyeball. Based on the position information of the eyeball, the detection mechanism is controlled to locate the eyeball, and then the eyeball is detected. Through this solution, there is no need to use a camera to shoot and artificial intelligence to identify the eyeball in the system, which reduces the time for the system to focus on the eye, thereby improving the efficiency of eyeball detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0031] Figure 1It is a structural schematic diagram of the eye focusing system of the utility model;

[0032] Figure 2 It is a schematic diagram of the structure of the diagnostic device of the utility model;

[0033] Figure 3 It is a schematic diagram of the sensor position of the eye focusing system of the utility model;

[0034] Figure 4 A schematic diagram of a single eye focusing system of the eye focusing system of the utility model;

[0035] Figure 5 A schematic diagram of a binocular focusing system of the eye focusing system of the utility model;

[0036] Figure 6 This is a schematic diagram of the structure of the driving device of the eye focusing system of the utility model;

[0037] Figure 7 This is a first working schematic diagram of the light guide lens of the eye focusing system of the utility model;

[0038] Figure 8 This is a second working schematic diagram of the light guide lens of the eye focusing system of the utility model.

[0039] Description of Figure Numbers:

[0040]

[0041] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0045] Combination Figure 1 The utility model proposes an embodiment, the eye focusing system 100 includes a shell 1, a positioning component 2, a detection mechanism 3 and a main control board. The shell 1 is provided with a mounting cavity and a detection port connected to the mounting cavity. The positioning component 2 includes a detection light 21 and a photoelectric position sensor component 22 arranged in the mounting cavity, the detection light 21 is used to provide light at the detection port, and the photoelectric position sensor component 22 is used to capture and identify light. The detection mechanism 3 is arranged in the positioning component 2. The main control board is arranged in the mounting cavity, and the main control board is electrically connected to the detection mechanism 3, the detection light 21 and the photoelectric position sensor component 22, and the main control board is used to control the detection mechanism 3 to detect the eyeball.

[0046] Specifically, the detection mechanism 3 is a detection mechanism 3 for obtaining eye health information. It can be understood that the eye detection mechanism 3 is usually equipped with a lens. The lens is aimed at the eyeball to complete the focusing. The shell 1 is provided with a mounting cavity, and a detection port is provided outside the shell 1 to connect to the mounting cavity, and the size of the detection port is larger than the size of the human eyeball. The positioning component 2 is arranged in the mounting cavity, and the detection mechanism 3 is arranged on the positioning component 2. The positioning component 2 can have at least three degrees of freedom, so that the positioning component 2 can drive the detection mechanism 3 to move in space. The photoelectric position sensor component 22 is arranged on the positioning component 2, and the photoelectric position sensor component 22 can directly receive the light refracted from the position of the eyeball. The detection light is arranged on the positioning component 2 or fixed at a certain position in the shell 1, and the detection light 21 can emit light toward the position of the eyeball to provide the light required to be received by the photoelectric position sensor.

[0047] Furthermore, the detection mechanism 3 is electrically connected to the main control board, and the main control board can control the operation of the detection mechanism 3. The positioning component 2 is electrically connected to the main control board, and the main control board provides instructions and data to accurately control the movement of the positioning component 2. The detection light is electrically connected to the main control board, and the main control board controls the switch of the detection light. The photoelectric position sensor component 22 is electrically connected to the main control board, and the main control board controls whether the photoelectric position sensor component 22 is running and working, and receives the position information sent by the photoelectric position sensor component 22.

[0048] Optionally, the number of the detection ports is 1 or 2. When there is only one detection port, the user can switch to another eye after detecting one eye. When there are two detection ports, the design and position of the two detection ports enable the patient to detect both eyes at the same time.

[0049] Through this embodiment, an eye focusing system 100 consisting of a detection mechanism 3, detection light, a photoelectric position sensor assembly 22, a positioning assembly 2 and a main control board is used. When the patient's eyeball information is to be collected, the patient's head moves to the front of the system, and the eyes face the detection mechanism 3. At this time, the detection light begins to flicker, and the brightness of the detection light is very small, which will not cause stimulation to the eyeball. After the light emitted by the detection light irradiates the patient's eyeball, the reflected light reaches the photoelectric position sensor, and the photoelectric position sensor converts the information of the light received from different directions into electrical signals of different sizes, and transmits the electrical signals to the main control board. The main control board processes the information transmitted by the photoelectric position sensor to obtain the position of the eyeball, and then transmits the coordinate information of the position of the eyeball or the distance difference information between the position of the detection mechanism 3 and the position of the eyeball to the positioning assembly 2. After the positioning assembly 2 obtains the information, it moves to calibrate the position of the detection mechanism 3, so that the detection mechanism 3 is accurately aligned with the patient's eyeball position. The main control board issues a command to let the detection mechanism 3 work and collect the patient's eyeball information.

[0050] Combination Figure 1 The utility model proposes an embodiment, the positioning assembly 2 further includes a driving device 4, the driving device 4 is provided with an X-axis motion mechanism 41, a Y-axis motion mechanism 42 and a Z-axis motion mechanism 43. The Y-axis motion mechanism 42 is provided in the installation cavity, the X-axis motion mechanism 41 is provided in the Y-axis motion mechanism 42, and the Z-axis motion mechanism 43 is provided in the X-axis motion mechanism 41. The positioning assembly 2 and the detection mechanism 3 are provided in the Z-axis motion mechanism 43, which drives the positioning assembly 2 and the detection mechanism 3 to move.

[0051] Specifically, the driving device 4 includes an X-axis motion mechanism 41 , a Y-axis motion mechanism 42 and a Z-axis motion mechanism 43 . The Y-axis motion mechanism 42 drives the X-axis motion mechanism 41 and the Z-axis motion mechanism 43 to move simultaneously, and the X-axis motion mechanism 41 drives the Z-axis motion mechanism 43 to move.

[0052] Specifically, the detection mechanism 3 , the detection light and the photoelectric position sensor assembly 22 are arranged on the Z-axis motion mechanism 43 .

[0053] Further, the detection light and photoelectric position sensor assembly 22 is arranged on the Z-axis motion mechanism 43, but the detection light and photoelectric position sensor can move in the Z-axis direction with the Z-axis motion mechanism 43, or can be designed on the static structure of the Z-axis motion mechanism 43 and not move in the Z-axis direction with the Z-axis motion mechanism 43. The detection mechanism 3 is arranged on the Z-axis motion mechanism 43 and moves in the Z-axis direction with the Z-axis motion mechanism 43.

[0054] Optionally, the detection light and photoelectric position sensor assembly 22 is set at a fixed position in the system and does not change position with the movement of the drive device 4. It can be understood that such a setting requires multiple photoelectric position sensors to locate the user's eyeballs.

[0055] Optionally, the driving device 4 is not limited to the control in the three directions of X-axis, Y-axis and Z-axis, and can be a combination of linear motion and rotational motion to achieve the purpose of moving the detection mechanism 3. At the same time, the motion unit in the same direction is not limited to one motion mechanism, but can be a multi-level motion chain composed of multiple motion mechanisms. The motion parameters of motion chains at different levels are inconsistent, so that the motion mechanism can achieve rapid movement and precise positioning.

[0056] Through this embodiment, the driving device 4 is connected to the detection mechanism 3, and the main control board controls the motion parameters of the driving device 4. The main control board receives the parameters transmitted by the photoelectric position sensor assembly 22, calculates the motion parameters of the driving device 4, and sends instructions to the driving device 4. The driving device 4 drives the detection mechanism 3 based on the instructions, so that the detection mechanism 3 can focus the eyeball.

[0057] Combination Figure 4 and Figure 5 The utility model proposes an embodiment, the driving device 4 includes two X-axis motion mechanisms 41, two Y-axis motion mechanisms 42 and two Z-axis motion mechanisms 43, and each Z-axis motion mechanism 43 is connected to a detection mechanism 3.

[0058] Specifically, the system includes an X-axis motion mechanism 41, a Z-axis motion mechanism 43, and a Y-axis motion mechanism 42. The length of the Y-axis motion mechanism 42 exceeds the distance between the eyes of a person. When the photoelectric position sensor is positioned at the position of one eyeball, the main control board drives the driving device 4 to complete the focusing of the detection mechanism 3 on the eyeball. After the detection mechanism 3 detects one eyeball, the Y-axis motion mechanism 42 drives the detection mechanism 3 to the position of the other eyeball. When the photoelectric position sensor is positioned at the position of the other eyeball, the main control board drives the driving device 4 to complete the focusing of the detection mechanism 3 on the other eyeball.

[0059] Optionally, the system includes two X-axis motion mechanisms 41, two Z-axis motion mechanisms 43 and two Y-axis motion mechanisms 42. Among them, one X-axis motion mechanism 41, one Z-axis motion mechanism 43 and one Y-axis motion mechanism 42 constitute a three-axis motion subunit. It can be understood that the two three-axis motion subunits are independent of each other and can independently complete the focus of the eyeballs. After the photoelectric position sensor can simultaneously locate the positions of the two eyeballs, the main control board drives the driving device 4 to complete the focus of the two measuring instruments on the two eyeballs, and the detection mechanism 3 detects the two eyeballs at the same time.

[0060] Through this embodiment, through different combinations of driving devices 4, it is possible to focus on a single eyeball successively or to focus on both eyeballs simultaneously. The former can save the complexity of the entire mechanism, and the latter can save the focusing time.

[0061] Combination Figure 1 and Figure 6 The utility model proposes an embodiment, wherein the X-axis motion mechanism 41, the Y-axis motion mechanism 42 and the Z-axis motion mechanism 43 all include a motor, a screw and a guide rail. The screw and the guide rail are arranged and connected in the same direction, the motor is connected to the screw to drive the screw to move, and the main control board is electrically connected to the motor to control the motion parameters of the motor.

[0062] Specifically, the motion mechanism is a lead screw and a slider, and the control unit controls the motion parameters of the lead screw and the slider, so that the slider drives the detection mechanism 3 to move.

[0063] Optionally, the motion mechanism is a gear rack, and the control unit controls the rotation angle and speed of the gear to control the operating parameters of the rack, thereby controlling the rack to drive the movement of the detection mechanism 3.

[0064] Optionally, the motion mechanism is a belt and a synchronous wheel, and the control unit controls the rotation angle and speed of the synchronous wheel to control the motion parameters of the synchronous wheel, so that the belt drives the detection mechanism 3 to move.

[0065] It can be understood that the movement accuracy of the screw slider is greater than the movement accuracy of the gear rack, which is greater than the movement accuracy of the belt synchronous wheel, and can be selected according to different movement requirements.

[0066] Furthermore, each direction of the motion mechanism of the driving device 4 is connected to a servo motor and a driver for driving the servo motor. Different servo motors can achieve different motion parameters for different motion mechanisms.

[0067] Through this embodiment, different motion parameters can be realized for motion mechanisms in different directions and in different time periods. For example, the approximate position can be quickly moved first, with the speed being the top priority rather than the accuracy, and then the positioning can be accurately performed at a slow speed, thus realizing a positioning solution that takes both speed and accuracy into consideration.

[0068] Combination Figure 1 , Figure 4 and Figure 5The utility model proposes an embodiment, the photoelectric position sensor assembly 22 includes a one-dimensional photoelectric position sensor 221 and a two-dimensional photoelectric position sensor 222. The one-dimensional photoelectric position sensor 221 is provided in the driving device 4, and the one-dimensional photoelectric position sensor 221 is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the X-axis direction. The two-dimensional photoelectric position sensor 222 is provided in the driving device 4, and the two-dimensional photoelectric position sensor 222 is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the Y-axis and Z-axis directions.

[0069] Specifically, the photoelectric position sensor includes a two-dimensional PSD photoelectric position sensor and a one-dimensional PSD photoelectric position sensor. The two PSD photoelectric position sensors are arranged on the driving device 4, follow the movement when the positioning component 2 is shifted, and do not follow the movement of the detection mechanism 3 when the positioning component 2 performs focusing movement.

[0070] Furthermore, the two-dimensional PSD photoelectric position sensor and the one-dimensional PSD photoelectric position sensor are both electrically connected to the main control board, and the operation of the two-dimensional PSD photoelectric position sensor and the operation of the one-dimensional PSD photoelectric position sensor are independent of each other.

[0071] Furthermore, the operation of a two-dimensional PSD photoelectric position sensor and a one-dimensional PSD photoelectric position sensor are mutually exclusive, and the two cannot operate at the same time. Only one can be turned on, one can be turned off, or both can be turned off.

[0072] It can be understood that the PSD photoelectric position sensor can be regarded as a square flat structure, and the photosensitive area can be regarded as a plane. In addition, the system is provided with an approximate area of ​​the patient's eye focus position. The normal direction of the photosensitive area of ​​the PSD photoelectric position sensor is toward the approximate area of ​​the eye focus position, so that the PSD photoelectric position sensor can obtain position information that is easier to process.

[0073] Through this embodiment, a one-dimensional PSD photoelectric position sensor and a two-dimensional PSD photoelectric sensor are used. The PSD photoelectric sensor has no requirements for the brightness of light when working. As long as the incident angle of the light is different, different electrical signals can be obtained through identification and processing. Therefore, during identification, the detection light is on for 30ms and off for 60ms in a cycle to ensure that the off time is twice the on time. The brightness of the light is low, so that the patient will not feel stimulation when the eyeball is irradiated. After the light hits the eye, the refracted or reflected light reaches the one-dimensional PSD photoelectric position sensor and the two-dimensional PSD photoelectric sensor. After the one-dimensional PSD photoelectric position sensor and the two-dimensional PSD photoelectric sensor capture the light, they identify and convert it into different electrical signals and transmit it to the main control board. The main control board calculates the specific position of the patient's eyeball, thereby issuing an instruction to move the positioning component 2 and accurately focus the detection mechanism 3 on the patient's eyeball.

[0074] Combination Figure 1 , Figure 4 and Figure 5 The utility model proposes an embodiment, the Z-axis motion mechanism 43 is provided with a frame, the detection mechanism 3 is provided on the frame, one of the one-dimensional photoelectric position sensors is provided on the frame, located on one side of the detection mechanism 3, one of the two-dimensional photoelectric position sensors is provided on the frame, located on the other side of the detection mechanism 3, and the one-dimensional photoelectric position sensor and the two-dimensional photoelectric position sensor move simultaneously with the detection mechanism 3. Two of the detection lamps 21 are provided on the frame, located on both sides of the detection mechanism 3 or one of the detection lamps 21 is provided on the Z-axis motion mechanism 43, and the other of the detection lamps 21 is provided on the Y-axis motion mechanism 42.

[0075] Specifically, the one-dimensional photoelectric position sensor 221 and the two-dimensional photoelectric position sensor. It can be understood that the human eyeball is approximately a sphere. Therefore, through the principle of spherical refraction, the position of the detection light 21 can be set at the corresponding position so that the light of the detection light 21 can reach the photoelectric position sensor with the shortest possible path.

[0076] Optionally, the number of detection lights can be multiple, and the multiple detection lights are arranged around the eyeball at different angles, so that the photoelectric position sensor can obtain more light incident at different angles and obtain richer electrical signals.

[0077] Furthermore, the two detection lights 21 can be one detection light 21 working in conjunction with the one-dimensional photoelectric position sensor 221, and the other detection light 21 working in conjunction with the two-dimensional photoelectric position sensor 222. The main control board is electrically connected to all the detection lights 21 and the photoelectric position sensors. When one detection light 21 and the one-dimensional photoelectric position sensor 221 are turned on, the other detection light 21 and the two-dimensional photoelectric position sensor 222 are turned off. When one detection light 21 and the one-dimensional photoelectric position sensor 221 are positioned, the detection light 21 and the one-dimensional photoelectric position sensor 221 are turned off, and the other detection light 21 and the two-dimensional photoelectric position sensor 222 are turned on. At this time, the relative position between the detection light 21 and the corresponding photoelectric position sensor is fixed, that is, the detection light 21 and the photoelectric position sensor are both arranged on the Z-axis motion mechanism 43.

[0078] Furthermore, the two detection lights 21 can also be one detection light 21 that cooperates with the one-dimensional photoelectric position sensor 221 and the two-dimensional photoelectric position sensor 222, and the other detection light 21 is used to supplement the light in the housing 1. The detection light 21 that cooperates with the photoelectric position sensor assembly 22 is arranged on the Z-axis motion mechanism 43, and moves with the movement of the Z-axis motion mechanism 43, and the relative position of the detection light 21 and the photoelectric position sensor remains unchanged. The other detection light 21 is arranged on another motion mechanism, so that the angle at which its light irradiates the detection port is staggered as much as possible with the angle at which other detection lights 21 irradiate the detection port, so that the eyeball can receive light irradiation from multiple angles as much as possible, so that the photoelectric position sensor obtains richer data. During detection, the two detection lights 21 are turned on and always on, when the one-dimensional photoelectric position sensor 221 is turned on and works, the two-dimensional photoelectric position sensor 222 is turned off, and when the two-dimensional photoelectric position sensor 222 is turned on and works, the one-dimensional photoelectric position sensor 221 is turned off. Alternately identify the three-dimensional coordinates of the eyeball.

[0079] Through this embodiment, the photoelectric position sensor can obtain more light incident at different angles and obtain richer electrical signals, and the focus on the eyeball is more accurate and rapid.

[0080] Combination Figure 1 , Figure 7 and Figure 8 The utility model proposes an embodiment, the photoelectric position sensor component 22 also includes a focusing component, the focusing component is movably arranged in the installation cavity, the focusing component is provided with a light-guiding lens, the light-guiding lens is located between the detection lamp 21 and the detection port, and is used to guide and adjust the light emitted by the detection lamp 21 to the detection port.

[0081] Specifically, the light-guiding lens is opaque and can completely reflect light, and the light-guiding lens can be a flat structure or a curved structure. There can be multiple light-guiding lenses, forming a lens group, forming a light path channel in the system.

[0082] Furthermore, the light guide lens can be arranged in the housing 1 and its relative position with the detection light remains unchanged, so that all the light emitted by the detection light can reach the positioning area of ​​the eyeball, that is, the area where the eyeball may appear in the system.

[0083] Optionally, the light guide lens can be arranged in the housing 1, and its relative position with the photoelectric position sensor remains unchanged, so as to transmit the light refracted from the eyeball to the photoelectric position sensor. It can be understood that the light guide lens changes the incident angle of the light, so when designing, the position of the light guide lens is fixed, so that the mapping relationship between the light incident on the light guide lens and the light exiting the light guide lens will not change with the movement of the positioning component 2, so that even if the photoelectric position sensor receives the light whose angle is changed by the light guide lens, it can still obtain the light parameters before the angle is changed by calculation, so as to locate the position of the eyeball.

[0084] Optionally, the light-guiding lens is light-transmissive, for example, a concave mirror can focus light. There can be multiple light-guiding lenses, forming a lens group, forming a light path channel in the system.

[0085] Furthermore, the light guide lens can be arranged in the housing 1 and its relative position with the detection light remains unchanged, so that the scattered light emitted by the detection light can be focused on the positioning area of ​​the eyeball, that is, the area where the eyeball may appear in the system.

[0086] Since the space inside the system is not sufficient and light is normally propagated in a straight line, a large space is required to prevent other structures in the system from blocking the light propagation path. Through this embodiment, the light guide lens is reasonably designed to change the light propagation path while ensuring that the information of the light is not lost, so that more different spatial layouts can be designed between the detection light, the photoelectric position sensor and the eyeball, which can not only improve the utilization rate of light, but also improve the utilization rate of space.

[0087] Combination Figure 1 , Figure 7 and Figure 8 The utility model proposes an embodiment, the focusing assembly includes a bracket and a mounting seat, the bracket is arranged in the mounting cavity or the positioning assembly 2, the mounting seat is connected to the bracket, the mounting seat is provided with a mounting groove, and the light guide lens is arranged in the mounting groove.

[0088] Specifically, a bracket is provided in the mounting cavity, and a mounting seat is provided in the mounting seat. A mounting groove for the light guide lens is provided in the mounting groove. The light guide lens is detachably connected to the mounting groove. It can be understood that the light guide lens arranged in this way will not move along with the movement of the driving device 4, and the size of the light guide lens is designed to be as large as possible.

[0089] Optionally, the bracket is arranged on the driving device 4, and the light-guiding lens moves with the movement of the mechanism. At this time, the light-guiding size can be designed to be smaller.

[0090] Combination Figure 7 and Figure 8The utility model proposes an embodiment, the shell 1 is provided with an adjustment hole connected to the mounting cavity, the end of the bracket away from the mounting seat is provided with an adjustment shaft, the adjustment shaft is passed through the adjustment hole, the focusing assembly also includes an adjustment hand wheel, the adjustment hand wheel is connected to the adjustment shaft to adjust the position of the adjustment shaft in the adjustment hole and / or the focusing assembly also includes a rotating motor, the rotating motor is arranged at one end of the bracket adjacent to the mounting seat, the output shaft of the rotating motor is connected to the mounting seat, and the mounting seat is rotatably connected to the bracket; wherein, the rotating motor drives the mounting seat to drive the light guide lens to rotate relative to the bracket to adjust the incident angle of the light guide lens.

[0091] Specifically, the rotating motor is electrically connected to the main control board, and the main control board can drive the rotation angle of the rotating motor. It can be understood that since the structural motion trajectory remains unchanged, the relative position of the detection port and the detection mechanism 3 can be predicted by the sensor or motor operating parameters. Therefore, the main control board can adjust the angle of the light guide lens based on the relative position of the detection port and the detection mechanism 3, so that when the mechanism is in different positions, it can adjust and guide the light to enter the detection port.

[0092] The utility model proposes an embodiment, wherein the detection mechanism 3 includes a lens and a camera;

[0093] At least two lenses form a lens group, one end of the lens group faces the eyeball, and the other end faces the camera. The lens group and the camera are arranged on the driving device 4.

[0094] Specifically, the structural parameters of different lenses are inconsistent, and together with a camera or related devices, they form a refraction detection mechanism 3 or a curvature detection mechanism 3.

[0095] Through this embodiment, after the eye focusing system 100 completes focusing, the detection mechanism 3 performs its function to complete the detection of the eye refraction or curvature.

[0096] The present invention proposes an embodiment. When a patient performs eye focusing, the eye focusing system 100 of the present application operates as follows:

[0097] Step 1: The first detection light turns on for 30ms and turns off for 60ms in a cycle; the second detection light turns off for 60ms and turns on for 30ms in a cycle.

[0098] Step 2: The one-dimensional photoelectric position sensor captures the light generated when the first detection light in the system is on, converts the light information into an electrical signal and transmits it to the main control board. When the first detection light is off, the one-dimensional photoelectric position sensor does not work.

[0099] Step 3: The two-dimensional photoelectric position sensor captures light when the second detection light in the system is on, converts the light information into an electrical signal and transmits it to the main control board. When the second detection light is off, the two-dimensional photoelectric position sensor does not work.

[0100] Step 4: The main control board obtains the electrical signal of the photoelectric position sensor, calculates the position of the eyeball based on the electrical signal, and sends motion parameter instructions to the positioning component.

[0101] Step 5: The positioning component focuses the detection mechanism precisely on the eyeball position based on the instructions.

[0102] Through this embodiment, by flashing the detection lights 21, the lighting time of different detection lights 21 is divided into position detection time in different directions, so that different position detections will not be interfered by other lights, thereby ensuring the accuracy of eyeball positioning by the photoelectric position sensor.

[0103] The utility model also provides a diagnostic device, such as Figure 2 As shown, the diagnostic device includes a base 200, a display screen 300 and the above-mentioned eye focusing system 100. The specific components of the eye focusing system 100 refer to the above-mentioned embodiments. Since the eye focusing system 100 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Among them, the eye focusing system 100 is arranged on a base 200, and a display screen 300 is arranged on one side of the base 200. The patient detects and presents the eye image on the display screen 300, and the detection personnel can watch, operate and control the diagnostic device through the display screen 300.

[0104] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An eye focusing system, characterized in that: The eye focusing system comprises: A housing, wherein the housing is provided with a mounting cavity and a detection port communicating with the mounting cavity; A positioning assembly, the positioning assembly comprising a detection lamp and a photoelectric position sensor assembly disposed in the mounting cavity, the detection lamp being used to provide light at the detection port, and the photoelectric position sensor assembly being used to capture and identify light; A detection mechanism, the detection mechanism is disposed on the positioning component; and A main control board, wherein the main control board is disposed in the installation cavity, the main control board is electrically connected to the detection mechanism, the detection light and the photoelectric position sensor assembly, and the main control board is used to control the detection mechanism to detect the eyeball.

2. The eye focusing system according to claim 1, characterized in that: The positioning assembly also includes a driving device, which is provided with an X-axis motion mechanism, a Y-axis motion mechanism and a Z-axis motion mechanism; The Y-axis motion mechanism is arranged in the installation cavity, the X-axis motion mechanism is arranged in the Y-axis motion mechanism, and the Z-axis motion mechanism is arranged in the X-axis motion mechanism; The positioning component and the detection mechanism are arranged on the Z-axis motion mechanism, and drive the positioning component and the detection mechanism to move.

3. The eye focusing system according to claim 2, characterized in that: The driving device comprises two X-axis motion mechanisms, two Y-axis motion mechanisms and two Z-axis motion mechanisms, and each Z-axis motion mechanism is connected to a detection mechanism.

4. The eye focusing system according to claim 3, characterized in that: The X-axis motion mechanism, the Y-axis motion mechanism and the Z-axis motion mechanism all include a motor, a lead screw and a guide rail; The lead screw and the guide rail are arranged and connected in the same direction, the motor is connected to the lead screw to drive the lead screw to move, and the main control board is electrically connected to the motor to control the movement parameters of the motor.

5. The eye focusing system according to claim 4, characterized in that: The photoelectric position sensor assembly includes a one-dimensional photoelectric position sensor and a two-dimensional photoelectric position sensor; The one-dimensional photoelectric position sensor is arranged on the driving device, and the one-dimensional photoelectric position sensor is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the X-axis direction; The two-dimensional photoelectric position sensor is arranged on the driving device, and the two-dimensional photoelectric position sensor is electrically connected to the main control board, and is used to measure the spatial position of the eyeball in the Y-axis and Z-axis directions.

6. The eye focusing system according to claim 5, characterized in that: The Z-axis motion mechanism is provided with a frame, the detection mechanism is provided on the frame, a one-dimensional photoelectric position sensor is provided on the frame and is located on one side of the detection mechanism, and a two-dimensional photoelectric position sensor is provided on the frame and is located on the other side of the detection mechanism, and the one-dimensional photoelectric position sensor and the two-dimensional photoelectric position sensor move simultaneously with the detection mechanism; The two detection lights are arranged on the frame, located at both sides of the detection mechanism, or one detection light is arranged on the Z-axis motion mechanism, and the other detection light is arranged on the Y-axis motion mechanism.

7. The eye focusing system according to any one of claims 1 to 6, characterized in that: The photoelectric position sensor assembly also includes a focusing assembly, which is movably disposed in the mounting cavity. The focusing assembly is provided with a light-guiding lens, which is located between the detection lamp and the detection port and is used to guide and adjust the light emitted by the detection lamp to the detection port.

8. The eye focusing system according to claim 7, characterized in that: The focusing assembly includes a bracket and a mounting seat, the bracket is arranged in the mounting cavity or the positioning assembly, the mounting seat is connected to the bracket, the mounting seat is provided with a mounting groove, and the light guide lens is arranged in the mounting groove.

9. The eye focusing system according to claim 8, characterized in that: The housing is provided with an adjustment hole communicating with the mounting cavity, an end of the bracket away from the mounting seat is provided with an adjustment shaft, the adjustment shaft is passed through the adjustment hole, and the focusing assembly further includes an adjustment hand wheel, the adjustment hand wheel is connected to the adjustment shaft to adjust the position of the adjustment shaft in the adjustment hole; And / or, the focusing assembly also includes a rotating motor, which is arranged at one end of the bracket adjacent to the mounting seat, the output shaft of the rotating motor is connected to the mounting seat, and the mounting seat is rotatably connected to the bracket; wherein the rotating motor drives the mounting seat to drive the light guide lens to rotate relative to the bracket to adjust the incident angle of the light guide lens.

10. A diagnostic device, characterized in that The diagnostic equipment comprises: Machine base; The eye focusing system according to any one of claims 1 to 9, wherein the eye focusing system is arranged on the base; A display screen is arranged on the base, and is used to display the imaging of the eye focusing system.

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