CN115644792B - An automatic eye-tracking system for a computerized refractometer - Google Patents
An automatic eye-tracking system for a computerized refractometerInfo
- Publication number
- CN115644792B CN115644792B CN202211293992.2A CN202211293992A CN115644792B CN 115644792 B CN115644792 B CN 115644792B CN 202211293992 A CN202211293992 A CN 202211293992A CN 115644792 B CN115644792 B CN 115644792B
- Authority
- CN
- China
- Prior art keywords
- gear
- rotating shaft
- sleeve
- arc
- control console
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The application belongs to the technical field of computer optometry, in particular to an automatic human eye tracking system of a computer optometry; an automatic human eye tracking system of a computer optometry instrument comprises a control console, wherein an arc-shaped track, a base, a mobile station, a main body, a support frame and a rotary tracking unit are arranged on the control console; the application sets the rotation tracking unit, when the head of the detected person rotates left and right, the rotation tracking unit is used for controlling the main body to automatically track the head movement, so that the detection device is opposite to the pupil position, and then the detection device is matched with the adjustment of the staff, the adjustment workload of the staff is reduced, and the accuracy of the detection result is improved.
Description
Technical Field
The invention belongs to the technical field of computer optometry instruments, and particularly relates to an automatic human eye tracking system of a computer optometry instrument.
Background
The computer optometry is an objective optometry, its principle is basically identical to that of retina optometry, and adopts infrared light source and automatic fog vision device to attain the goal of relaxing eyeball regulation, and adopts photoelectric technology and automatic control technology to check diopter, and both subjective optometry and objective optometry can accurately measure refractive power and axial direction of astigmatism of patient. The two methods need abundant optometry experience, and have long time in the technology of mastering the optometry, and the computer optometry technology is easier to learn and master. The computer optometry instrument can be used for performing diagnostic optometry on the soft cornea contact lens, and the dioptric degree can be rapidly measured without mydriasis. The refraction results of the computer optometry instrument are all automatically printed, a patient can be measured in a few seconds to a few minutes without conversion, the degree of ametropia can be rapidly measured, and more accurate refraction degree and interpupillary distance are provided for lens correction;
In the use process of the computer optometry instrument, the chin of a tested person needs to be placed on a chin rest and a cursor in the front optometry instrument is guided, however, in the detection process, the accuracy of the computer optometry instrument is affected by a plurality of factors, such as the left and right rotation of the head of the tested person, the movement and the insufficient relaxation and adjustment, the accuracy of diopter inspection results is inevitably affected, even the degree difference of repeated inspection is large, especially for children patients, the child control capability is not strong or attention is not concentrated, the head cannot be well controlled in the optometry process, and the left and right rotation of the head in a small range is enabled to be askew, so that the error of the computer optometry instrument in the test is larger and the measurement accuracy is affected.
In view of the above, the present invention solves the above-mentioned problems by providing an automatic eye tracking system for a computer optometry device.
Disclosure of Invention
In order to overcome the defects of the prior art, solve the problems that the child has poor control capability or is not concentrated in attention, the head cannot be well controlled to be motionless in the optometry process, and the small-range left and right rotation of the head is inclined, so that the error of the test of the computer optometry instrument is larger, the invention provides the automatic human eye tracking system of the computer optometry instrument.
The technical scheme adopted by the invention for solving the technical problems is that the automatic human eye tracking system of the computer optometry instrument comprises:
the control console is provided with an arc-shaped track;
The base is movably arranged in the arc-shaped track;
The mobile station is arranged on the base and can finish the movement of the mobile station back and forth and left and right on the base;
the device comprises a main body, a display device, a detection device, a control panel, a locking device, a control panel and a control panel, wherein the main body is arranged above a mobile station, a lifting device is arranged between the main body and the mobile station, and the lifting device can adjust the height of the main body;
the support frame is fixedly arranged at the top of the control console, and a lower jaw support is arranged at a cavity of the support frame;
and the rotation tracking unit controls the motion of the base in the arc-shaped track so as to control the main body to automatically track the head.
Preferably, the rotation tracking unit includes:
The first rotating shaft is fixedly connected below the chin rest and extends into the console;
the angle sensor is fixedly connected to one end of the first rotating shaft, which is positioned in the console;
The first sleeve shaft is provided with a through hole at one end close to the first rotating shaft, a first gear is fixedly arranged at the outer side of the first sleeve shaft corresponding to the through hole, and the first rotating shaft penetrates through the through hole; the control console is internally provided with a cavity with a fan-shaped horizontal section, and the fan-shaped cavity is communicated with the arc-shaped track;
the controller is fixedly arranged in the control console;
the stepping motor is fixedly connected inside the control console;
the second gear is fixedly connected to the output end of the stepping motor, and is meshed with the first gear.
Preferably, the first gear has the same reference circle diameter and the same number of teeth as the second gear.
Preferably, one end of the first sleeve shaft far away from the first rotating shaft is sleeved with a rotating sleeve.
Preferably, the outer ring of the rotating sleeve is fixedly provided with a latch, and the contact position between the rotating sleeve and the edge of the arc-shaped track is fixedly provided with an arc-shaped rack.
Preferably, a torsion spring is fixedly connected between the first rotating shaft and the angle sensor.
Preferably, a bolt is slidably arranged in the top wall of the control console, and a slot is formed in a position of the first rotating shaft corresponding to the top wall of the control console.
Preferably, the top of the chin rest is slidably connected with two clamping blocks, and a number one spring is fixedly connected between one surface of the two clamping blocks, which is far away from each other, and the side wall of the chin rest.
Preferably, a plurality of elastic rollers are rotatably connected to opposite surfaces of the two clamping blocks.
Preferably, a detection button is fixedly arranged at the top of the chin rest and positioned between the two clamping blocks.
The beneficial effects of the invention are as follows:
1. When the chin of a tested person is placed on the chin rest, after the position of the main body is adjusted, if the head of the tested person rotates left and right around the chin as a fulcrum, the first rotating shaft is driven to rotate, and the angle sensor is fixedly connected to one end of the first rotating shaft, which is positioned in the console, and can convert a rotating angle signal into an electric signal and then transmit the electric signal to the controller, the controller receives the signal, processes the electric signal and converts the electric signal into an electric pulse signal to transmit the electric pulse signal to the stepping motor, and the controller controls the stepping motor to rotate by the same angle in the opposite direction and is matched with the meshing of the first gear and the second gear, so that the first sleeve rotates by the same angle in the rotating direction of the axial head.
2. According to the automatic human eye tracking system of the computer optometry instrument, the first gear is identical with the second gear in reference circle diameter and tooth number, when the first gear and the second gear are meshed and rotated, the first gear and the second gear are identical in rotation angle when the first gear and the second gear are rotated, and therefore control accuracy is improved, and the device is more reliable.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a top cross-sectional view of the console;
FIG. 5 is an enlarged view of a portion at A of FIG. 4;
FIG. 6 is a partial cross-sectional view of a console;
FIG. 7 is a cross-sectional view of a clamp block;
In the figure, a console 1, an arc-shaped rail 11, an arc-shaped rack 12, a plug 13, a base 2, a moving table 3, a main body 4, a lifting device 41, a display device 42, a detection device 43, a control lever 44, a locking device 45, a support frame 5, a chin rest 51, a clamping block 52, a first spring 53, an elastic roller 54, a detection button 55, a rotation tracking unit 6, a first rotating shaft 61, a slot 611, an angle sensor 62, a first sleeve shaft 63, a through hole 631, a first gear 632, a rotating sleeve 633, a controller 64, a stepping motor 65, a second gear 66, and a torsion spring 67.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 to 7, the automatic eye tracking system of a computerized optometry instrument according to the present invention comprises:
the control console 1 is provided with an arc-shaped track 11;
The base 2 is movably arranged in the arc-shaped track 11;
A mobile station 3, wherein the mobile station 3 is arranged on the base 2, and the mobile station 3 can complete the movement of the base 2 back and forth and left and right;
a main body 4, wherein the main body 4 is arranged above the mobile station 3, a lifting device 41 is arranged between the main body 4 and the mobile station 3, and the lifting device 41 can adjust the height of the main body 4, a display device 42 and a detection device 43 are respectively and fixedly arranged at two sides of the main body 4, and a control lever 44 and a locking device 45 are arranged at the top of the control console 1;
The support frame 5 is fixedly arranged at the top of the console 1, a lower jaw support 51 is arranged at the cavity of the support frame 5,
The rotation tracking unit 6 controls the motion of the base 2 in the arc-shaped track 11, so as to control the main body 4 to automatically track the head motion.
When the computer optometry device works, in the using process, the chin of a tested person needs to be placed on the chin rest 51, and a cursor in the front optometry device of the tested person is guided; however, in the process of detection, the accuracy of the computer optometry instrument is affected by a plurality of factors, such as that the head of a tested person rotates and leans left and right, the movement is started and stopped, and the adjustment is not enough, any head position and the inclination of the eye position inevitably affect the accuracy of diopter detection results, even the difference of the degrees of repetition detection is large, especially for children patients, the child control capability is not strong or the attention is not concentrated, the head cannot be well controlled in the process of optometry, the small-range left and right rotation of the head can lead to larger errors of the computer optometry instrument test and affect the measurement accuracy, when the computer optometry instrument is used, the application guides the tested person to put the chin on the chin rest 51, operates the operating lever 44, so that the mobile platform 3 drives the main body 4 to move back and forth and left on the base 2, and the lifting device 41 lifts the main body 4, the main body 4 moves back and forth to adjust the focal length, the left and right movement is used for adjusting the position of the left and right eyes, the up and down movement is used for assisting the detection device 43 to be opposite to the head, the main body 4 is used for locking the main body 4, the small-range left and right rotation of the head can lead to large errors of the computer optometry instrument test, the measurement accuracy is affected, when the computer optometry instrument is used, the main body 4 is used for locking the main body 4, the pupil 4 is automatically moving in a mode of the application, the human eye 4 is automatically and the automatic mode is automatically changed from the mode of the main body 4, the human eye 4 is automatically, and the human eye is automatically controlled to be automatically when the human eye is automatically in the mode and the human eye is automatically, and the human eye is automatically in the human eye mode and the human eye is automatically, and the human eye is in the human eye mode and the human eye's mode and the human eye' is automatically. The human eye data is collected, if the head of the tested person rotates left and right in a small range at this time, especially if the head rotates left and right in a small range due to the fact that the children move more, the control capability is not strong and the attention is not concentrated, the detection device 43 does not face the pupil position any more, and the measurement result is inaccurate, so that the rotation tracking unit 6 is arranged, when the head of the tested person rotates left and right, the rotation tracking unit 6 is used for controlling the main body 4 to automatically track the head so that the detection device 43 faces the pupil position, and the accuracy of the detection result is improved by matching with the adjustment of staff.
Because the relaxation adjustment of the tested person is insufficient, the measurement result is inaccurate, the application does not fix the head of the tested person, thereby reducing the tension emotion of the tested person, especially for small children, if the head is fixed, the tension emotion of the children is increased, even crying is caused, and the detection process cannot be carried out.
As a specific embodiment of the present invention, the rotation tracking unit 6 includes:
a first rotating shaft 61, wherein the first rotating shaft 61 is fixedly connected below the chin rest 51 and extends into the console 1;
the angle sensor 62, the said angle sensor 62 links fixedly to one end that the spindle 61 locates in the control console 1;
The first sleeve shaft 63 is provided with a through hole 631 at one end of the first sleeve shaft 63 close to the first rotating shaft 61, a first gear 632 is fixedly arranged at the outer side of the first sleeve shaft 63 corresponding to the through hole 631, the first rotating shaft 61 penetrates through the through hole 631, a cavity with a fan-shaped horizontal section is arranged in the console 1, the fan-shaped cavity is communicated with the arc-shaped track 11, one end of the first sleeve shaft 63 far away from the first rotating shaft 61 penetrates through the cavity in the console 1 and the arc-shaped track 11, and the part of the first sleeve shaft 63 positioned in the arc-shaped track 11 is fixedly connected with the base 2;
a controller 64, wherein the controller 64 is fixedly arranged inside the console 1;
the stepping motor 65, the said stepping motor 65 links to the inside of the control console 1;
the second gear 66, the second gear 66 is fixedly connected to the output end of the stepper motor 65, and the second gear 66 is meshed with the first gear 632.
When the device is in operation, when the chin of a person to be measured is placed on the chin rest 51, after the position of the main body 4 is adjusted, if the head of the person to be measured rotates left and right around the chin as a fulcrum, the first rotating shaft 61 is driven to rotate (the first rotating shaft 61 rotates in a through hole 631 in the first sleeve shaft 63), as the angle sensor 62 is fixedly connected to one end of the first rotating shaft 61 in the console 1, the angle sensor 62 can be a DWQT non-contact angle sensor 62, the measured angle range is any angle of 0-360 degrees (+ -180 degrees) and the measured resolution is 0.087 degrees, so that the angle sensor 62 can convert a rotating angle signal into an electric signal, then the electric signal is transmitted to the controller 64, the controller 64 receives the signal, and transmits the electric signal into the stepping motor 65 through processing, and the controller 64 controls the stepping motor 65 to rotate by the same angle in the opposite direction, and further enables the first sleeve shaft 63 to rotate by the same angle in the same direction in cooperation with the meshing of the second gear 66, and the first sleeve shaft 632 rotates in the same angle in the rotating direction, and the first sleeve shaft 63 rotates in the same angle, and the angle is in the same angle as the rotating direction, and the first sleeve shaft is in the arc-shaped shaft 11 is in the arc-shaped position, and the right direction, and the rotating position of the first sleeve shaft 63 rotates in the arc-shaped body 11 is fixed in the rotating position, and the rotating position of the first sleeve shaft 11 is opposite the pupil 11 is opposite to the pupil 11, and the pupil 11 can rotate in the human body, and the human body rotates in the human body, and rotates the human body.
As one embodiment of the present invention, the first gear 632 is identical to the second gear 66 in terms of pitch diameter and number of teeth.
In operation, the first gear 632 is consistent with the second gear 66 in terms of the diameter of the reference circle and the number of teeth, and when the first gear 632 and the second gear 66 are meshed and rotated, the first gear 632 and the second gear 66 are consistent in terms of the diameter of the reference circle and the number of teeth, so that the control precision is improved.
As a specific embodiment of the present invention, a rotating sleeve 633 is rotatably connected to an end of the first sleeve shaft 63 remote from the first rotating shaft 61.
As a specific embodiment of the present invention, the outer ring of the rotating sleeve 633 is fixedly provided with a latch, and the contact position between the rotating sleeve 633 and the edge of the arc track 11 is fixedly provided with an arc rack 12.
During operation, when the first sleeve shaft 63 rotates, one end of the first sleeve shaft 63 far away from the first rotating shaft 61 is contacted with the edge of the arc track 11 far away from the first rotating shaft 61, so that the edge of the arc track 11 far away from the first rotating shaft 61 supports the first sleeve shaft 63, the stability of the first sleeve shaft 63 is improved, the rotating sleeve 633 is rotationally connected to the edge contact part of the first sleeve shaft 63 far away from the first rotating shaft 61 through the arrangement of the first sleeve shaft 63 and the arc track 11, the clamping teeth are fixedly arranged on the outer ring of the rotating sleeve 633, the arc rack 12 is fixedly arranged at the edge contact position of the rotating sleeve 633 and the arc track 11, (the base 2 and the rotating sleeve 633 are both positioned at one end of the first sleeve shaft 63 far away from the first rotating shaft 61, and the base 2 is positioned in the arc track 11) compared with the base 2, in the rotating process of the first sleeve shaft 63, the clamping teeth on the rotating sleeve 633 are matched with the arc rack 12, on one hand, the edge of the arc track 11 far away from the first rotating shaft 61 supports the first sleeve shaft 63, the first sleeve shaft 63 is increased, and the friction and friction wear are reduced, and the friction wear are reduced.
As a specific embodiment of the present invention, a torsion spring 67 is fixedly connected between the first rotating shaft 61 and the angle sensor 62.
During operation, the torsion spring 67 is fixedly connected between the first rotating shaft 61 and the angle sensor 62, when the first rotating shaft 61 does not rotate, the torsion spring 67 is in an original state, and when the first rotating shaft 61 rotates, the torsion spring 67 is in a force storage state, and after the first rotating shaft 61 rotates, when a chin leaves the chin rest 51, the first rotating shaft 61 can reset, so that a person to be tested can conveniently place the chin on the chin rest 51 when in next use.
As a specific embodiment of the present invention, a pin 13 is slidably disposed in the top wall of the console 1, and a slot 611 is formed at a position of the first rotating shaft 61 corresponding to the top wall of the console 1.
When the intelligent control console is in operation, the inserted pin 13 is slidably arranged in the top wall of the control console 1, the slot 611 is formed in the position of the first rotating shaft 61 corresponding to the top wall of the control console 1, the inserted pin 13 can be inserted into the slot 611 when the first rotating shaft 61 does not rotate, and when a tested person is an adult, the inserted pin 13 can be inserted into the slot 611 when the control capability is good, so that the first rotating shaft 61 cannot rotate, and the stability is improved.
As a specific embodiment of the present invention, two clamping blocks 52 are slidably connected to the top of the chin rest 51, and a number one spring 53 is fixedly connected between a side of the two clamping blocks 52 away from each other and a side wall of the chin rest 51.
When the chin rest is in operation, the top of the chin rest 51 is slidably connected with two clamping blocks 52, a tested person places a chin between the two clamping blocks 52, a first spring 53 is fixedly connected between one surface, away from each other, of the two clamping blocks 52 and the side wall of the chin rest 51, the first spring 53 contracts to enable the two clamping blocks 52 to clamp the chin, and the chin rest is suitable for the chin of different people according to different expansion and contraction amounts of the first spring 53, when the head of the tested person rotates left and right around a chin fulcrum through the arrangement, the two clamping blocks 52 are stressed, the first rotating shaft 61 is driven to rotate more easily, and the function of the device can be stably exerted.
As a specific embodiment of the present invention, a plurality of elastic rollers 54 are rotatably connected to opposite surfaces of the two clamping blocks 52.
In operation, the opposite surfaces of the two clamping blocks 52 are rotatably connected with a plurality of elastic rollers 54, and when a chin is put in and taken out between the two clamping blocks 52, the elastic rollers 54 rotate, so that the chin can be put in and taken out from between the two clamping blocks 52 more smoothly.
As a specific embodiment of the present invention, a detection button 55 is fixedly disposed on the top of the chin rest 51 and between the two clamping blocks 52.
In operation, the detection button 55 is fixedly arranged at the top of the chin rest 51 and between the two clamping blocks 52, when the detection button 55 is pressed down through circuit connection, the display device 42 can display, so that the chin is put between the two clamping blocks 52 to press down the detection button 55, when the chin does not contact the detection button 55, the chin is taken out from between the two clamping blocks 52, and the rotating head part can not cause the rotation of the first rotating shaft 61 at this time, so that the setting can remind a worker, and the chin is prevented from being found when leaving the chin rest 51 and then cannot cause the rotation of the first rotating shaft 61, so that the device is disabled.
The specific working procedure is as follows:
When the chin of the person to be tested is placed on the chin rest 51, after the position of the main body 4 is adjusted, if the head of the person to be tested rotates left and right around the chin as a fulcrum, the first rotating shaft 61 is driven to rotate (the first rotating shaft 61 rotates in the through hole 631 in the first sleeve shaft 63), and as the angle sensor 62 is fixedly connected to one end of the first rotating shaft 61 positioned in the console 1, the angle sensor 62 can be a DWQT contactless angle sensor 62, the angle range measured by the angle sensor is any angle of 0-360 degrees (+ -180 degrees), and the measurement resolution is 0.087 degrees; the angle sensor 62 can convert the rotating angle signal into an electric signal, then the electric signal is transmitted to the controller 64, the controller 64 receives the signal, the electric signal is converted into an electric pulse signal and transmitted to the stepping motor 65, the controller 64 controls the stepping motor 65 to rotate in the opposite direction by the same angle, the first gear 632 is meshed with the second gear 66, the first sleeve shaft 63 rotates in the same angle towards the rotating direction of the head, the base 2 is fixedly connected to the part of the first sleeve shaft 63 in the arc track 11, the main body 4 can move in the arc track 11, the moving angle is consistent with the rotating angle of the head, the detection device 43 can still face the pupil when the head rotates around the chin as a fulcrum, the adjustment of a worker is matched, the work load is reduced, the accuracy of the detection result is improved, in addition, the diameters and the numbers of the reference circles of the first gear 632 and the second gear 66 are consistent, the diameters of the reference circles and the numbers of the teeth of the first gear 632 and the second gear 66 are consistent, when the gears 66 are meshed and rotated, the diameters of the first gear 632 and the second gear 66 are consistent with the rotating angle of the reference circle, thereby improving the control precision.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A human eye automatic tracking system of a computer optometry instrument is characterized by comprising a control console (1), wherein an arc-shaped track (11) is arranged on the control console (1), a base (2), a moving table (3), a supporting frame (5), a main body (4), a lifting device (41) and a rotating unit (6) are arranged between the main body (4) and the moving table (3), the base (2) is movably arranged in the arc-shaped track (11), the moving table (3) is arranged on the base (2), the moving table (3) can move back and forth and left and right on the base (2), the main body (4) is arranged above the moving table (3), the lifting device (41) can adjust the height of the main body (4), a display device (42) and a detection device (43) are fixedly arranged on two sides of the main body (4) respectively, a control lever (44) and a locking device (45) are arranged on the top of the control console (1), the supporting frame (5) is fixedly arranged on the top of the control console (1), the supporting frame (5) is arranged on the top of the control console (5), a cavity (6) is arranged in the rotating unit (6), and the rotating unit (6) is arranged in the arc-shaped track (11), further controlling the main body (4) to automatically track the head movement;
The rotation tracking unit (6) comprises a first rotating shaft (61), an angle sensor (62), a first sleeve shaft (63), a first gear (632) and a second gear (64), wherein the first rotating shaft (61) is fixedly connected to the lower part of a chin rest (51) and extends to the inside of a control console (1), the angle sensor (62) is fixedly connected to one end of the first rotating shaft (61) which is positioned in the control console (1), one end of the first sleeve shaft (63) which is close to the first rotating shaft (61) is provided with a through hole (631), the position, corresponding to the through hole (631), of the outer side of the first sleeve shaft (63) is fixedly provided with the first gear (632), the first rotating shaft (61) penetrates through the through hole (631), a cavity with a fan-shaped horizontal section is arranged in the control console (1) and is communicated with an arc-shaped track (11), one end of the first sleeve shaft (63) which is far away from the first rotating shaft (61) penetrates through the cavity and the arc-shaped track (11), one end of the first sleeve shaft (63) is positioned in the control console (1), the first sleeve shaft (63) is positioned in the inner portion of the arc-shaped track (11) and is fixedly connected with the second gear (631) and the stepping motor (64) which is fixedly connected to the stepping motor (65) and the stepping motor (65) in the control console (1), the second gear (66) is fixedly connected to the output end of the stepping motor (65), and the second gear (66) is meshed with the first gear (632);
The angle sensor (62) can convert the measured angle signal of the first rotating shaft (61) into an electric signal, then the electric signal is transmitted to the controller (64), the controller (64) receives the signal, the electric signal is converted into an electric pulse signal after being processed and is transmitted to the stepping motor (65), and the controller (64) controls the stepping motor (65) to rotate in the opposite direction by the same angle.
2. The system of claim 1, wherein the first gear (632) has a diameter and a number of teeth equal to the number of reference circles of the second gear (66).
3. The system of claim 1, wherein the first sleeve (63) is rotatably connected to a rotating sleeve (633) at an end of the first sleeve remote from the first rotating shaft (61).
4. The automatic eye tracking system of a computer optometry instrument of claim 3, wherein the outer ring of the rotating sleeve (633) is fixedly provided with a latch, and an arc-shaped rack (12) is fixedly arranged at the contact position of the rotating sleeve (633) and the edge of the arc-shaped track (11).
5. The automatic eye tracking system of a computer optometry instrument of claim 1, wherein a torsion spring (67) is fixedly connected between the first rotating shaft (61) and the angle sensor (62).
6. The automatic eye tracking system of a computer optometry instrument of claim 1, wherein the top wall of the console (1) is provided with a bolt (13) in a sliding manner, and a slot (611) is formed in a position of the first rotating shaft (61) corresponding to the top wall of the console (1).
7. The automatic eye tracking system of a computer optometry instrument of claim 1, wherein two clamping blocks (52) are connected to the top of the chin rest (51) in a sliding manner, and a first spring (53) is fixedly connected between one surface of the two clamping blocks (52) away from each other and the side wall of the chin rest (51).
8. A computerized optometry eye tracking system according to claim 7, wherein a plurality of elastic rollers (54) are rotatably connected to opposite faces of the clamping blocks (52).
9. The automatic eye tracking system of a computer optometry instrument of claim 8, wherein a detection button (55) is fixedly arranged on the top of the chin rest (51) and between the two clamping blocks (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211293992.2A CN115644792B (en) | 2022-10-21 | 2022-10-21 | An automatic eye-tracking system for a computerized refractometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211293992.2A CN115644792B (en) | 2022-10-21 | 2022-10-21 | An automatic eye-tracking system for a computerized refractometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115644792A CN115644792A (en) | 2023-01-31 |
| CN115644792B true CN115644792B (en) | 2026-03-20 |
Family
ID=84990073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211293992.2A Active CN115644792B (en) | 2022-10-21 | 2022-10-21 | An automatic eye-tracking system for a computerized refractometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115644792B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118787305A (en) * | 2024-08-06 | 2024-10-18 | 中国人民解放军陆军军医大学第一附属医院 | A high-precision optometry instrument for children |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244457A (en) * | 2006-03-14 | 2007-09-27 | Nidek Co Ltd | Opthalmological device |
| CN115137294A (en) * | 2022-06-20 | 2022-10-04 | 安徽医科大学 | Eye movement track recognition instrument for autism |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3610152B2 (en) * | 1996-02-09 | 2005-01-12 | キヤノン株式会社 | Ophthalmic equipment |
| WO2007097738A2 (en) * | 2005-01-26 | 2007-08-30 | Wollf Robin Q | Eye tracker/head tracker/camera tracker controlled camera/weapon positioner control system |
| WO2009088947A2 (en) * | 2008-01-02 | 2009-07-16 | Arcscan, Inc. | Components for an ultrasonic arc scanning apparatus |
| JP5887191B2 (en) * | 2012-04-19 | 2016-03-16 | 株式会社トーメーコーポレーション | Corneal imaging apparatus and cornea imaging method |
| KR102022281B1 (en) * | 2017-11-22 | 2019-09-18 | 주식회사 포텍 | Optometer having auto detecting function of eye in patient |
| CN111227783A (en) * | 2020-03-03 | 2020-06-05 | 安徽巨目光学科技发展有限公司 | Optical system of computer optometry instrument and optometry method |
| CN112493985B (en) * | 2020-11-29 | 2022-05-17 | 宁波杰士隆光学仪器有限公司 | A fully automatic computer refractometer that can automatically track human eyes |
-
2022
- 2022-10-21 CN CN202211293992.2A patent/CN115644792B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007244457A (en) * | 2006-03-14 | 2007-09-27 | Nidek Co Ltd | Opthalmological device |
| CN115137294A (en) * | 2022-06-20 | 2022-10-04 | 安徽医科大学 | Eye movement track recognition instrument for autism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115644792A (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10492676B2 (en) | Phoropter, and method for measuring refraction using a phoroptor of said type | |
| CN111281334A (en) | A computerized optometry human eye automatic tracking system | |
| CN115644792B (en) | An automatic eye-tracking system for a computerized refractometer | |
| CN114305322B (en) | Tonometer and method for measuring intraocular pressure | |
| CN119279492A (en) | Lens accommodation power measurement optometry | |
| CN209377545U (en) | A kind of intelligence optometry unit | |
| CN103230253B (en) | Eye adjustment force training devices | |
| CN209332024U (en) | A kind of eyes automatic optometry unit | |
| CN119214848B (en) | Six-dimensional cervical vertebra bone setting traction system based on facial gesture recognition technology | |
| CN112493985B (en) | A fully automatic computer refractometer that can automatically track human eyes | |
| WO2011133626A1 (en) | Device and method for calibrating retinoscopes | |
| CN202096193U (en) | Moveable eye movement adjusting measuring apparatus | |
| CN218870264U (en) | Auxiliary device of ocular biometer for measuring peripheral ocular axis by adjusting deflection angle | |
| CN112914496A (en) | Eye position self-photographing device and using method | |
| CN116807379A (en) | Automatic adjust biological measuring apparatu | |
| CN213525085U (en) | Eyesight screening instrument convenient for different people to use | |
| CN112690755B (en) | Head-mounted ophthalmic OCTA device | |
| CN222383156U (en) | Head bracket of optometry instrument | |
| US20110261323A1 (en) | Device and method for calibrating retinoscopes | |
| CN221769944U (en) | An ophthalmic device for measuring binocular convergence function | |
| CN220192992U (en) | Adjustable optometry instrument | |
| CN217118409U (en) | Head stabilizing device of optometry instrument | |
| CN2071054U (en) | Subjective feeling type computer optometry instrument | |
| CN222398290U (en) | Vision testing device for optometry | |
| CN217744358U (en) | Pupil diameter measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No. 2508, Tongjing East Road, Tongguan District, Tongling City, Anhui Province, 244000 (9th and 10th Factory Buildings) Applicant after: Anhui Jumu Optical Technology Co.,Ltd. Address before: No. 2508, Tongjing East Road, Tongling City, Anhui Province, 244000, Factory Buildings 9 and 10 Applicant before: Anhui Jumu Optical Technology Development Co.,Ltd. Country or region before: China |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |