CN115644792A - Automatic tracking system for human eyes of computer optometry instrument - Google Patents
Automatic tracking system for human eyes of computer optometry instrument Download PDFInfo
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- CN115644792A CN115644792A CN202211293992.2A CN202211293992A CN115644792A CN 115644792 A CN115644792 A CN 115644792A CN 202211293992 A CN202211293992 A CN 202211293992A CN 115644792 A CN115644792 A CN 115644792A
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Abstract
The invention belongs to the technical field of computer optometry instruments, in particular to an automatic human eye tracking system of a computer optometry instrument; an automatic eye tracking system of a computer optometry instrument comprises a 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 console; according to the invention, by arranging the rotary tracking unit, when the head of the detected person rotates left and right, the rotary tracking unit is used for controlling the main body to automatically track the head movement, so that the detection device is over against the pupil position, and the adjustment of workers is matched, so that the adjustment workload of the workers is reduced, and the accuracy of the detection result is improved; the head of the tested person is not fixed, so that the tension of the tested person is reduced; especially for children with small galls, if the head of the children is fixed, the nervous mood of the children is increased, even crying and screaming are caused, and the detection process cannot be carried out.
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 instrument is an optometry instrument; computer optometry belongs to an objective optometry, the principle of the optometry is basically the same as that of a retina optometry, an infrared light source and an automatic fog device are adopted to achieve the purpose of relaxing eyeball adjustment, and a photoelectric technology and an automatic control technology are adopted to check diopter; both the subjective refraction method and the objective refraction method can accurately measure the refractive power and the axial direction of astigmatism of a patient. The two methods need abundant optometry experiences, the time is longer in the aspect of mastering the optometry technology, and the computer optometry technology is easier to learn and master. The computer optometry instrument can be used for diagnosis optometry by matching the soft corneal contact lens, and can quickly measure the dioptric power without mydriasis. The refraction results of the computer refractometer are all automatically printed without conversion, one patient can be measured generally within a few seconds to a few minutes, the degree of ametropia can be rapidly measured, and more accurate dioptric power and interpupillary distance are provided for lens correction;
when the computer optometry instrument is used, the chin of a testee needs to be placed on the lower jaw support, and the testee is guided to look at a cursor in the front optometry instrument; however, in the process of detection, the accuracy of the computer optometry unit is affected by many factors, such as the head of the person to be tested is rotated and tilted left and right, the person moves around, and the relaxation and adjustment are not enough, any inclination of the head and the eye inevitably affects the accuracy of the diopter detection result, even the diopter difference of the repeated detection is large, especially for children patients, the children have poor control ability or are not attentive, and the head cannot be well controlled to be still in the process of optometry; the head part rotates leftwards and rightwards in a small range to be inclined, so that the error of the test of the computer optometry instrument is large, and the measurement precision is influenced.
In view of this, the present invention provides an automatic eye tracking system for a computer optometry instrument to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, the problems that children have weak control ability or are not careful and the head cannot be well controlled to be immobile in the optometry process are solved; the invention provides a human eye automatic tracking system of a computer optometry instrument, which solves the problem that the small-range left-right rotation of the head is inclined, so that the error of the test of the computer optometry instrument is large.
The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic tracking system for human eyes of a computer optometry instrument, comprising:
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 move back and forth, left and right on the base;
the lifting device is arranged between the main body and the mobile station, and the lifting device can adjust the height of the main body; a display device and a detection device are fixedly arranged on two sides of the main body respectively; the top of the console is provided with an operating lever and a locking device;
the supporting frame is fixedly arranged at the top of the console, and a lower jaw support is arranged at a cavity of the supporting frame;
and the rotary tracking unit controls the main body to automatically track the head to move by controlling the movement of the base in the arc-shaped track.
Preferably, the rotation tracking unit includes:
the first rotating shaft is fixedly connected below the lower jaw support and extends into the console;
the angle sensor is fixedly connected to one end, located inside the console, of the first rotating shaft;
a through hole is formed in one end, close to the first rotating shaft, of the first sleeve shaft, a first gear is fixedly arranged on the outer side of the first sleeve shaft, corresponding to the position of the through hole, and the first rotating shaft penetrates through the through hole; a cavity with a fan-shaped horizontal section is arranged in the console, and the fan-shaped cavity is communicated with the arc-shaped track; one end of the first sleeve shaft, which is far away from the first rotating shaft, penetrates through a cavity and an arc-shaped track in the console; the part of the first sleeve shaft, which is positioned in the arc-shaped track, is fixedly connected with the base;
the controller is fixedly arranged in the console;
the stepping motor is fixedly connected inside the console;
the second gear is fixedly connected to the output end of the stepping motor and meshed with the first gear.
Preferably, the diameters of reference circles and the numbers of teeth of the first gear and the second gear are the same.
Preferably, one end of the first sleeve shaft, which is 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 of 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 arranged in the top wall of the console in a sliding mode, and a slot is formed in the position, corresponding to the top wall of the console, of the first rotating shaft.
Preferably, the top of the lower jaw support is connected with two clamping blocks in a sliding mode, and a first spring is fixedly connected between one surface, far away from each other, of each clamping block and the side wall of the lower jaw support.
Preferably, a plurality of elastic rollers are rotatably connected to opposite surfaces of the two clamping blocks.
Preferably, a detection button is fixedly arranged on the top of the lower jaw support and between the two clamping blocks.
The invention has the following beneficial effects:
1. when the chin of a tested person is placed on the lower jaw support, after the position of the main body is adjusted, if the head of the tested person rotates left and right around the chin serving as a fulcrum, the first rotating shaft is driven to rotate, 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 and converts the electric signal into an electric pulse signal to transmit the electric pulse signal to the stepping motor after processing, the controller controls the stepping motor to rotate in opposite directions by the same angle, and the first gear and the second gear are meshed with each other to enable the first sleeve to rotate in the head rotating direction by the same angle.
2. According to the automatic tracking system for the human eyes of the computer optometry instrument, the diameter and the number of teeth of the reference circle of the first gear are consistent with those of the second gear, so that when the first gear and the second gear are meshed for rotation, the diameter and the number of the reference circle are consistent, and the rotation angles of the first gear and the second gear are consistent, so that the control precision is improved, and the device is more reliable.
Drawings
The invention will be further explained with reference to the 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 a partial enlarged view at a of fig. 4;
FIG. 6 is a partial cross-sectional view of the console;
FIG. 7 is a cross-sectional view of the clamp block;
in the figure: the device comprises a control console 1, an arc-shaped track 11, an arc-shaped rack 12, a latch 13, a base 2, a mobile station 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 lower jaw support 51, a clamping block 52, a first spring 53, an elastic roller 54, a detection button 55, a rotary 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
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, the present invention provides an automatic tracking system for human eyes of a computer optometry instrument, comprising:
the control platform comprises a control platform 1, wherein an arc-shaped track 11 is arranged on the control platform 1;
the base 2 is movably arranged in the arc-shaped track 11;
the mobile station 3 is arranged on the base 2, and the mobile station 3 can move back and forth, left and right on the base 2;
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 fixedly arranged on two sides of the main body 4; the top of the control console 1 is provided with a control lever 44 and a locking device 45;
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,
and the rotary tracking unit 6 controls the main body 4 to automatically track the head movement by controlling the movement of the base 2 in the arc-shaped track 11 through the rotary tracking unit 6.
When the computer optometry instrument works, the chin of a testee needs to be placed on the lower jaw support 51 in the using process of the computer optometry instrument, and the testee is guided to look at a cursor in the front optometry instrument; however, in the detection process, the accuracy of the computer optometry instrument is influenced by many factors, such as the head of the person to be detected rotates obliquely left and right, moves about, and is not enough to relax and adjust, any inclination of the head and the eye necessarily influences the accuracy of the diopter detection result, even the diopter difference of repeated detection is large, especially for children patients, children have poor control ability or are not concentrated, and the head cannot be well controlled to be motionless in the optometry process; the head is rotated and inclined left and right in a small range, so that the error of the test of the computer optometry instrument is large, and the measurement precision is influenced; when the device is used, a testee is guided to place the chin on the lower jaw support 51, the operating rod 44 is operated, the mobile station 3 drives the main body 4 to move front, back, left and right on the base 2, the lifting device 41 lifts the main body 4, the main body 4 moves front and back to adjust the focal length, moves left and right to adjust the positions of left and right eyes, and moves up and down to assist the detection device 43 in facing the pupils of human eyes; the locking device 45 is used for locking the movement of the main body 4, so as to prevent the main body 4 from being freely moved to damage the main body 4 when the computer optometry instrument is carried, (the operating lever 44, the locking device 45, the mobile station 3 and the lifting device 41 are all consistent with the structure and principle of the computer optometry instrument in the prior art); certainly, the automatic control system is consistent with the computer optometry instrument in the prior art, a manual mode and an automatic mode exist, and the automatic mode can be switched to automatically control the main body 4 to move to complete human eye data acquisition; after the position of the main body 4 is adjusted, human eye data are collected, if the head of the tested person rotates left and right within a small range at the moment, the situation that the children do more movement, the control capability is not strong, the attention is not concentrated, and the head rotates left and right within a small range occurs, the detection device 43 does not face the pupil position any more at the moment, and the measurement result is inevitably inaccurate; therefore, a rotation tracking unit 6 is provided, when the head of the detected person rotates left and right, the rotation tracking unit 6 is used for controlling the main body 4 to automatically track the head movement, so that the detection device 43 is opposite to the pupil position; and the accuracy of the detection result is improved by matching with the adjustment of workers.
The head of the tested person is not fixed due to the fact that the tested person is not enough in relaxation adjustment, and the measuring result is inaccurate; especially for children with small galls, if the head of the children is fixed, the nervous mood of the children is increased, even crying and screaming are caused, and the detection process cannot be carried out.
As an embodiment of the present invention, the rotation tracking unit 6 includes:
the first rotating shaft 61 is fixedly connected below the lower jaw support 51 and extends into the console 1;
the angle sensor 62 is fixedly connected to one end, located inside the console 1, of the first rotating shaft 61;
a first sleeve shaft 63, wherein a through hole 631 is formed in one end, close to the first rotating shaft 61, of the first sleeve shaft 63, a first gear 632 is fixedly arranged on the outer side of the first sleeve shaft 63, corresponding to the through hole 631, and 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, and the fan-shaped cavity is communicated with the arc-shaped track 11; one end of the first sleeve shaft 63, which is far away from the first rotating shaft 61, penetrates through a cavity in the console 1 and the arc-shaped track 11; the part of the first sleeve shaft 63, which is positioned in the arc-shaped track 11, is fixedly connected with the base 2;
the controller 64, the said controller 64 is fixedly arranged in the control panel 1;
the stepping motor 65, the stepping motor 65 is fixedly connected inside the 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.
When the device works, when the chin of a measured person is placed on the lower jaw support 51, after the position of the main body 4 is adjusted, if the head of the measured person rotates around the chin for a small amplitude left and right, 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), because the angle sensor 62 is fixedly connected to one end of the first rotating shaft 61 positioned in the control 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 measurement resolution is 0.087 degrees; therefore, the angle sensor 62 can convert a rotating angle signal into an electric signal and then transmit the electric signal to the controller 64, the controller 64 receives the signal, processes the signal and converts the electric signal into an electric pulse signal and transmits the electric pulse signal to the stepping motor 65, the controller 64 controls the stepping motor 65 to rotate in the opposite direction by the same angle in cooperation with the meshing of the first gear 632 and the second gear 66, so that the first sleeve shaft 63 rotates in the head rotating direction by the same angle, and the main body 4 can move in the arc-shaped track 11 due to the fact that the part, located in the arc-shaped track 11, of the first sleeve shaft 63 is fixedly connected with the base 2, and the moving angle is consistent with the rotating angle of the head; so that the detection device 43 can still face the pupil when the head rotates left and right around the chin as a pivot; and the adjustment of workers is matched, so that the adjustment workload of the workers is reduced, and the accuracy of the detection result is improved.
In an embodiment of the present invention, the first gear 632 and the second gear 66 have the same reference circle diameter and number of teeth.
During operation, the reference circle diameter and the number of teeth of the first gear 632 and the second gear 66 are the same, and when the first gear 632 and the second gear 66 are meshed for rotation, the reference circle diameter and the number of teeth are the same, so that the rotation angle of the first gear 632 and the second gear 66 during rotation is the same, and the control precision is improved.
In an embodiment of the invention, a rotating sleeve 633 is rotatably connected to one end of the first sleeve shaft 63, which is far away from the first rotating shaft 61.
In an embodiment of the present invention, the outer ring of the rotating sleeve 633 is fixedly provided with a latch, and the position where the rotating sleeve 633 contacts with the edge of the arc-shaped track 11 is fixedly provided with an arc-shaped rack 12.
During operation, when the first sleeve shaft 63 rotates, one end of the first sleeve shaft 63, which is far away from the first rotating shaft 61, is in contact with the edge of the arc-shaped track 11, which is far away from the first rotating shaft 61, so that the edge of the arc-shaped track 11, which is far away from the first rotating shaft 61, can support the first sleeve shaft 63, and the stability of the first sleeve shaft 63 is improved; a rotating sleeve 633 is rotatably connected to the edge contact part of the first sleeve shaft 63 and the arc-shaped track 11, which is far away from the first rotating shaft 61, a clamping tooth is fixedly arranged on the outer ring of the rotating sleeve 633, and an arc-shaped rack 12 is fixedly arranged at the edge contact position of the rotating sleeve 633 and the arc-shaped track 11, (the base 2 and the rotating sleeve 633 are both positioned at one end of the first sleeve shaft 63, which is far away from the first rotating shaft 61, the rotating sleeve 633 is closer to the end part of the first sleeve shaft 63, which is far away from the first rotating shaft 61, than the base 2, and the base 2 is positioned in the arc-shaped track 11); in the rotatory in-process of a sleeve 63, rotate latch cooperation arc rack 12 on the cover 633, make to rotate the cover 633 and take place to rotate, the edge that an arc track 11 kept away from a pivot 61 plays the supporting role to a sleeve 63 on the one hand, increase the stability of a sleeve 63, on the other hand, compare with a sleeve 63 direct and arc track 11 edge contact, this sets up becomes rolling friction with sliding friction, friction has been reduced, wear has been reduced on the one hand, on the other hand has reduced the moving resistance.
In an 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, when the first rotating shaft 61 rotates, the torsion spring 67 is in a force accumulation state, the arrangement enables the first rotating shaft 61 to rotate, when a chin leaves the lower jaw support 51, the first rotating shaft 61 can reset, and a testee places the chin on the lower jaw support 51 when the lower jaw support is used conveniently.
As a specific embodiment of the present invention, a plug 13 is slidably disposed in the top wall of the console 1, and a slot 611 is disposed in a portion of the first rotating shaft 61 corresponding to the top wall of the console 1.
When the control console works, the bolt 13 is arranged in the top wall of the control console 1 in a sliding mode, the slot 611 is formed in the position, corresponding to the top wall of the control console 1, of the first rotating shaft 61, and the bolt 13 can be inserted into the slot 611 when the first rotating shaft 61 does not rotate; when the person to be tested is an adult and the control capability is good, the plug 13 can be inserted into the slot 611, so that the first rotating shaft 61 cannot rotate, and the stability is improved.
As a specific embodiment of the invention, two clamping blocks 52 are slidably connected to the top of the lower jaw support 51, and a first spring 53 is fixedly connected between the surfaces of the two clamping blocks 52, which are far away from each other, and the side wall of the lower jaw support 51.
When the jaw clamp works, the top of the lower jaw support 51 is connected with the two clamping blocks 52 in a sliding mode, a measured person puts the jaw between the two clamping blocks 52, a first spring 53 is fixedly connected between the mutually far side of the two clamping blocks 52 and the side wall of the lower jaw support 51, the first spring 53 contracts to enable the two clamping blocks 52 to clamp the jaw, and the jaw clamp adapts to the jaws of different people according to different stretching amounts of the first spring 53; through the arrangement, when the head of a tested person rotates left and right around the chin fulcrum, 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 exerted stably.
In an embodiment of the present invention, a plurality of elastic rollers 54 are rotatably connected to the opposite surfaces of the two clamping blocks 52.
During operation, a plurality of elastic rollers 54 are rotatably connected to opposite surfaces of the two clamping blocks 52, and when a chin is placed between the two clamping blocks 52 and taken out of the space, the elastic rollers 54 rotate, so that the chin can be more smoothly placed between the two clamping blocks 52 and taken out of the space.
In an embodiment of the present invention, a detection button 55 is fixedly disposed on the top of the lower jaw support 51 and between the two clamping blocks 52.
During operation, jaw support 51 top just is located the fixed detection button 55 that is provided with between two clamp splice 52, when making detection button 55 press through circuit connection, can show on the display device 42, so the chin is put into and is pressed detection button 55 between two clamp splice 52, when the chin does not contact detection button 55, explain that the chin takes out from between two clamp splice 52, the head that rotates probably can not arouse the rotation of a pivot 61 this moment, the staff can be reminded in this setting, prevent that the child chin from not discovering and then can not arouse the rotation of a pivot 61 when leaving jaw support 51, make the device lose effect.
The specific working process is as follows:
when the chin of the measured person is placed on the lower jaw support 51, after the position of the main body 4 is adjusted, if the head of the measured person 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), because 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 non-contact angle sensor 62, the measured angle range is any angle of 0-360 degrees (+ -180 degrees), and the measurement resolution is 0.087 degree; therefore, the angle sensor 62 can convert a rotating angle signal into an electric signal and then transmit the electric signal to the controller 64, the controller 64 receives the signal, processes the signal and converts the electric signal into an electric pulse signal and transmits the electric pulse signal to the stepping motor 65, the controller 64 controls the stepping motor 65 to rotate in the opposite direction by the same angle in cooperation with the meshing of the first gear 632 and the second gear 66, so that the first sleeve shaft 63 rotates in the head rotating direction by the same angle, and the main body 4 can move in the arc-shaped track 11 due to the fact that the part, located in the arc-shaped track 11, of the first sleeve shaft 63 is fixedly connected with the base 2, and the moving angle is consistent with the rotating angle of the head; when the head rotates left and right around the chin as a pivot, the detection device 43 can still face the pupil, and the adjustment of workers is matched, so that the adjustment workload of the workers is reduced, and meanwhile, the accuracy of the detection result is improved; the diameters and the numbers of teeth of the reference circles of the first gear 632 and the second gear 66 are the same, and when the first gear 632 and the second gear 66 are meshed for rotation, the diameters and the numbers of the reference circles are the same, so that the rotation angles of the first gear 632 and the second gear 66 during rotation are the same, and the control precision is improved.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. An automatic tracking system for human eyes of a computer optometry instrument is characterized by comprising:
the device comprises a console (1), wherein an arc-shaped track (11) is arranged on the console (1);
the base (2), the said base (2) is movably mounted in the arcuate orbit (11);
the mobile station (3) is arranged on the base (2), and the mobile station (3) can move back and forth, left and right on the base (2);
the lifting device comprises a main body (4), wherein the main body (4) is arranged above the mobile platform (3), a lifting device (41) is arranged between the main body (4) and the mobile platform (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 fixedly arranged on two sides of the main body (4); the top of the console (1) is provided with an operating lever (44) and a locking device (45);
the support frame (5) is fixedly arranged at the top of the console (1), and a lower jaw support (51) is arranged at a cavity of the support frame (5);
the rotary tracking unit (6) controls the main body (4) to automatically track the head movement through controlling the movement of the base (2) in the arc-shaped track (11).
2. The computerized optometry instrument human eye automatic tracking system of claim 1, wherein: the rotational tracking unit (6) comprises:
the first rotating shaft (61), the first rotating shaft (61) is fixedly connected below the lower jaw support (51) and extends into the control console (1);
the angle sensor (62), the angle sensor (62) is fixedly connected with one end of the first rotating shaft (61) which is positioned in the console (1);
a first sleeve shaft (63), wherein a through hole (631) is formed in one end, close to the first rotating shaft (61), of the first sleeve shaft (63), a first gear (632) is fixedly arranged on the outer side of the first sleeve shaft (63) corresponding to the through hole (631), and 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), and the fan-shaped cavity is communicated with the arc-shaped track (11); one end, far away from the first rotating shaft (61), of the first sleeve shaft (63) penetrates through a cavity in the console (1) and the arc-shaped track (11); the part of the first sleeve shaft (63) positioned in the arc-shaped track (11) is fixedly connected with the base (2);
the controller (64), the said controller (64) is fixed to the inside of control console (1);
the stepping motor (65), the said stepping motor (65) is connected to the inside of control cabinet (1) fixedly;
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).
3. The system of claim 2 for automatically tracking the eye of a computerized optometry instrument, comprising: the diameters and the numbers of teeth of the reference circles of the first gear (632) and the second gear (66) are consistent.
4. The computerized optometry instrument human eye automatic tracking system of claim 2, wherein: one end of the first sleeve shaft (63) far away from the first rotating shaft (61) is rotatably connected with a rotating sleeve (633).
5. The computerized optometry instrument human eye automatic tracking system of claim 4, wherein: the outer ring of the rotating sleeve (633) is fixedly provided with a latch, and the edge contact position of the rotating sleeve (633) and the arc track (11) is fixedly provided with an arc rack (12).
6. The computerized optometry instrument human eye automatic tracking system of claim 2, wherein: and a torsion spring (67) is fixedly connected between the first rotating shaft (61) and the angle sensor (62).
7. The computerized optometry instrument human eye automatic tracking system of claim 2, wherein: a bolt (13) is arranged in the top wall of the console (1) in a sliding mode, and a slot (611) is formed in the position, corresponding to the top wall of the console (1), of the first rotating shaft (61).
8. The computerized optometry instrument human eye automatic tracking system of claim 2, wherein: the top of the lower jaw support (51) is connected with two clamping blocks (52) in a sliding mode, and 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 lower jaw support (51).
9. The computerized optometry instrument human eye automatic tracking system of claim 8, wherein: the opposite surfaces of the two clamping blocks (52) are rotatably connected with a plurality of elastic rolling shafts (54).
10. The computerized optometry instrument human eye automatic tracking system of claim 9, wherein: and a detection button (55) is fixedly arranged at the top of the lower jaw support (51) and between the two clamping blocks (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211293992.2A CN115644792A (en) | 2022-10-21 | 2022-10-21 | Automatic tracking system for human eyes of computer optometry instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211293992.2A CN115644792A (en) | 2022-10-21 | 2022-10-21 | Automatic tracking system for human eyes of computer optometry instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115644792A true CN115644792A (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211293992.2A Pending CN115644792A (en) | 2022-10-21 | 2022-10-21 | Automatic tracking system for human eyes of computer optometry instrument |
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| Country | Link |
|---|---|
| CN (1) | CN115644792A (en) |
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2022
- 2022-10-21 CN CN202211293992.2A patent/CN115644792A/en active Pending
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