CN108309710B - Mirror disc assembly of vision training instrument and control method - Google Patents
Mirror disc assembly of vision training instrument and control method Download PDFInfo
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- CN108309710B CN108309710B CN201810214712.1A CN201810214712A CN108309710B CN 108309710 B CN108309710 B CN 108309710B CN 201810214712 A CN201810214712 A CN 201810214712A CN 108309710 B CN108309710 B CN 108309710B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H5/00—Exercisers for the eyes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/50—Control means thereof
- A61H2201/5058—Sensors or detectors
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Abstract
The invention discloses a mirror disc assembly of a vision training instrument and a control method, and belongs to the technical field of vision training instruments. The mirror plate assembly includes: mirror plate frame, lens dish, sensor, controller and power device, be equipped with a plurality of lenses on the lens dish, the breach is located on the outer circumference of lens dish, and the interval the lens sets up, the breach includes benchmark breach and location breach, the width of benchmark breach is greater than the width of location breach, the sensor is fixed in the mirror plate frame, and the card ride in the lens dish is used for judging the position of lens, the controller is used for acquireing the serial number of lens, control the lens dish rotates, makes target lens rotate to the position that the viewport corresponds, power device is used for the drive the lens dish rotates. The invention has the beneficial effects that: when the user utilizes the vision training instrument to perform different types of vision training, the lenses of different types can be automatically switched to perform corresponding vision training.
Description
Technical Field
The invention relates to the technical field of vision training instruments, in particular to a mirror disc assembly of a vision training instrument and a control method.
Background
The vision training instrument improves the adjusting capacity, the image fusion and the convergence and dispersion capacity and the like of eyeballs through training the inner muscles and the outer muscles of the eyeballs, establishes a normal three-level visual function and achieves the purpose of recovering the vision health. For the eye adjustment training of different types, the vision training instrument is required to be adjusted, and different types of lenses are required to be switched to carry out corresponding training. In the existing lens switching process, the problem that the lenses cannot be automatically switched to the lenses of the corresponding types according to different types of eye training exists.
Disclosure of Invention
The embodiment of the invention provides a mirror disc assembly of a vision training instrument and a control method, and aims to solve the problem that lenses of the vision training instrument cannot be automatically switched to corresponding types of lenses according to different types of eye training. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to the embodiment of the invention, the mirror disc assembly of the vision training instrument and the control method are provided, so that when a user utilizes the vision training instrument to perform different types of vision training, the corresponding type of lenses can be automatically switched to perform corresponding vision training.
According to a first aspect of embodiments of the present invention, there is provided a mirror plate assembly for a vision training apparatus, comprising:
a mirror plate frame;
the two lens discs are symmetrically arranged on the two lens disc frames from left to right, the disc surfaces of the two lens discs are positioned on the same plane, and a plurality of lenses are arranged on the lens discs;
the notch is arranged on the outer circumference of the lens disc and is arranged at intervals of the lenses, the notch comprises a reference notch and a positioning notch, and the width of the reference notch is larger than that of the positioning notch;
the sensor is fixed on the lens disc frame, clamped on the lens disc and used for judging the position of the lens;
the controller is used for acquiring the serial number of the lens, controlling the lens disc to rotate and enabling the target lens to rotate to a position corresponding to the view port;
and the power device is used for driving the lens disc to rotate.
In some optional technical solutions, the mirror plate assembly further includes a transmission structure, and the transmission structure includes a gear transmission structure, and the gear transmission structure is connected with the power device to rotate the lens plate.
In some of the alternative solutions, the first and second,
the mirror plate frame comprises a first mirror plate frame and a second mirror plate frame, a left-handed nut is arranged on the first mirror plate frame, and a right-handed nut is arranged on the second mirror plate frame;
the lens disc comprises a first lens disc and a second lens disc, the first lens disc is fixed on the first lens disc frame, and the second lens disc is fixed on the second lens disc frame.
Further, the mirror plate assembly further comprises a screw rod, the screw rod comprises a positive thread section and a negative thread section, the positive thread section is connected with the right-handed nut, and the negative thread section is connected with the left-handed nut.
In some optional technical solutions, the mirror plate assembly further comprises a guide rod, and the two mirror plate frames are connected through the guide rod.
According to a second aspect of the embodiments of the present invention, there is provided a control method of a mirror plate assembly of a vision training apparatus, including:
acquiring a first lens number of a target lens corresponding to a to-be-trained item selected by a user and a second lens number of an initial lens corresponding to a viewport;
determining the rotation angle of the lens disc according to the first lens number, the second lens number and the preset arrangement relation of the lenses on the lens disc, wherein the arrangement relation is used for indicating the angle of each numbered lens relative to the reference position of the lens disc;
and controlling the lens disc to rotate the rotating angle according to a set direction so as to enable the target lens to rotate to a position corresponding to the view port.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
1. when the user utilizes the eyesight training appearance to carry out the eyesight training of different grade type, but the mirror plate subassembly automatic switch-over corresponding type's lens of eyesight training appearance carries out corresponding eyesight training, and is more intelligent.
2. The user is when utilizing the eyesight training appearance to carry out eyesight training, through the rotating screw rod, drives the lens dish that is located first lens dish frame and the lens dish that is located the second lens dish and is close to each other or keep away from to adjust the distance between the lens on the first lens dish and the second lens dish, reach the purpose of adjusting the interpupillary distance of eyesight training appearance, with the training crowd who adapts to different interpupillary distances, reach the best eyesight training effect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a block diagram illustrating a mirror plate assembly of a vision training apparatus in accordance with an exemplary embodiment;
FIG. 2 is a side view of a mirror plate assembly of a vision training apparatus shown in accordance with an exemplary embodiment;
FIG. 3 is a side view of a mirror plate assembly of yet another vision training apparatus shown in accordance with an exemplary embodiment;
FIG. 4 is a side view of a mirror plate assembly of yet another vision training apparatus shown in accordance with an exemplary embodiment;
FIG. 5 is a flow chart illustrating a method of controlling a mirror plate assembly of the vision training apparatus in accordance with an exemplary embodiment;
FIG. 6 is a schematic flow diagram illustrating a method of controlling a mirror plate assembly of yet another vision training apparatus in accordance with an exemplary embodiment;
figure 7 is a flow diagram illustrating a method of controlling a mirror plate assembly of yet another vision training apparatus in accordance with an exemplary embodiment.
Description of reference numerals: 1-a lens holder; 11-a first mirror plate frame; 12-a second mirror holder; 2-a lens disc; 21-a first lens disc; 22-a second lens disk; 23-a lens; 24-a reference notch; 25-positioning notches; 3-a sensor; 4-a transmission structure; 5-a screw; 6-a guide rod; 7-self-aligning ball bearing; 8-rotating shaft; 81-knob; 9-a coupler; 10-a support frame.
Detailed Description
The invention is further described with reference to the accompanying drawings and the description thereof. The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims.
Figures 1-4 are block diagrams illustrating a mirror plate assembly of a vision training apparatus according to an exemplary embodiment.
In this alternative embodiment, there is provided a mirror plate assembly for a vision training apparatus, comprising:
a mirror plate rack 1;
the two lens discs 2 are symmetrically arranged on the two lens disc frames 1 from left to right, the disc surfaces of the two lens discs 2 are positioned on the same plane, and a plurality of lenses 23 are arranged on the lens discs 2;
the notch is arranged on the outer circumference of the lens disc 2 and is arranged at a distance from the lens 23, the notch comprises a reference notch 24 and a positioning notch 25, and the width of the reference notch 24 is greater than that of the positioning notch 25;
further, after the vision training instrument is powered on and reset, the reference notch 24 and the positioning notch 25 have the same function and are both marks of the position of the lens 23 associated with the notch.
The sensor 3 is fixed on the lens frame 1, clamped on the lens disc 2 and used for judging the position of the lens 23;
in practical application, the sensor 3 is a photoelectric sensor, the lens disc 2 rotates by a specific angle under the driving of the power device, when the positioning notch 25 on the lens disc 2 is overlapped with the photoelectric sensor, the total time length of the notch passing through the photoelectric sensor, which is detected by the photoelectric sensor, is judged, and if the total time length is within a preset range, the stop position of the lens disc 2 is correct.
Optionally, the sensor 3 includes a proximity sensor, a metal protrusion is disposed on the lens tray 1 at an interval of the lens 23, and during the rotation of the lens tray 2, the proximity sensor can determine the position information of the lens 23 according to the generated magnetic field strength change, so as to perform a positioning function.
Optionally, the sensor 3 further includes a correlation sensor, a hall sensor, an encoder sensor, and a gravity sensor, and those skilled in the art can easily combine the enumerated sensors with the technical solution to position the lens 23, so that the details are not repeated.
The controller is used for acquiring the serial number of the lens 23, controlling the lens disc 2 to rotate, and enabling the target lens to rotate to a position corresponding to the view port;
and the power device is used for driving the lens disc 2 to rotate.
Specifically, the power device is a stepping motor. The power device can utilize the transmission structure 4 to drive the lens disc 2 to rotate so as to realize the switching among the lenses 23 of different types, and meet the requirements of different types of vision training.
In some optional embodiments, the power device is a stepping motor, and the stepping motor rotates to a fixed position according to a fixed time to drive the lens disc 2 to synchronously rotate to the fixed position, so that the accuracy is high, and the program disorder of the controller caused by inaccurate positioning can be eliminated.
Furthermore, the power device is a speed reduction stepping motor, so that the output torque of the motor can be improved, the load of the speed reduction stepping motor is further increased, and the rotation of the lens disc 2 is more stable.
Optionally, the power device is a stepping motor or a servo motor without a speed reducer, so that a gear clearance error in the speed reducer can be eliminated, the rotational positioning of the lens disc 2 is more accurate, and the switching of the lens 23 is more accurate.
This embodiment enables the user to automatically switch the corresponding type of lens 23 for performing the corresponding vision training when performing different types of vision training with the vision training apparatus.
In practical application, when the lenses 23 on the two lens discs 2 are adjusted to be the red or green sheets to perform eye motility convergence function training, the stepping motor is started to drive the gear to rotate, and the lens discs 2 rotate under the transmission action of the gear transmission structure 4. When the positioning notch 25 of the lens disc 2 coincides with the photoelectric sensor of the lens disc holder 1, the lens disc 2 stops rotating, the red film is located at a specific position where the user trains, and the user can start to train the eye motility function.
In some alternative embodiments, the types of lenses 23 include: red, green, lenticular and spherical. By switching the different types of lenses 23, vision training of different contents can be completed.
For example, the lenses 23 on the two lens discs 2 are adjusted to be the red or green sheets, and the eye muscles are controlled to finish the movement type divergence and convergence by adding or subtracting the horizontal distance of the picture in the display of the vision training instrument, so as to finish the movement convergence function training of the eyes;
the lenses 23 on the two lens discs 2 are adjusted to be cylindrical lenses, so that eye convergence function training is completed, and the side-center staring amblyopia, anisometropic amblyopia, strabismus amblyopia and the like are improved;
will two on the lens dish 2 lens 23 adjust to the ball mirror, the ball mirror includes convex lens and concave lens, promotes the switching number of times of concave, convex lens in the fixed time, realizes the nervous and relaxed fast switch-over of eye muscle, improves that the eye regulating power is low, adjust lags behind, the adjustment sensitivity descends etc..
Further, the type of the lens 23 further includes a light shielding sheet, and the lens 23 on the two lens discs 2 is adjusted to the light shielding sheet to shield a single eye and perform a strengthening training on the other eye.
Further, the type of the lens 23 further includes a flat sheet, the lenses on the two lens discs are adjusted to the flat sheet, and the saccadic function training of the eyes is completed by changing the type, the font size and the difficulty degree of the content displayed by the display of the vision training instrument.
In some optional embodiments, the mirror plate assembly further comprises a transmission structure 4, the transmission structure 4 comprises a gear transmission structure 4, and the gear transmission structure 4 is connected with the power device to rotate the lens plate 2.
Optionally, the transmission structure 4 comprises a synchronous belt, a synchronous belt driving wheel and a synchronous belt driven wheel, wherein the synchronous belt driving wheel and the synchronous belt driven wheel are connected and driven through the synchronous belt. Further, the synchronous belt driving wheel is connected with the power device, and the synchronous belt is sleeved on a rotating shaft connected with the lens disc 2 through the driven wheel sleeve. By adopting synchronous belt transmission, the power device can be arranged at the bottom of the lens frame 1, the thickness of the lens disc 2 is reduced, and the layout of parts is optimized.
In alternative embodiments, the lenses 23 are disposed along the circumference of the lens disc 2, which may optimize the distribution of the lenses 23.
Preferably, lens 23 is along the circumference of lens dish 2 evenly sets up, and two same type is gone up to lens dish 2 lens 23 is about two central line between the quotation of lens dish 2 is mirror symmetry, when lens dish 2 is rotatory, two the same type on the lens dish 2 lens 23 switches to corresponding position simultaneously, guarantees two on the lens dish 2 lens 23 switches in step.
Further, on the premise of ensuring the functions of the lenses 23, the diameter of the lens disc 2 is reduced, and the arrangement mode of the lenses 23 is optimized, so that the structure of the lens disc 2 is more compact.
In some of the alternative embodiments, the first and second,
the mirror plate frame 1 comprises a first mirror plate frame 11 and a second mirror plate frame 12, wherein a left-handed nut is arranged on the first mirror plate frame 11, and a right-handed nut is arranged on the second mirror plate frame 12. The levogyration nut with the locking ability of right-handed nut is good, and is difficult not hard up, can effectively reduce interpupillary distance adjustment mechanism shifts the interpupillary distance adjusting error that forms owing to the vibration, improves the accurate nature of interpupillary distance regulation.
The lens disc 2 includes a first lens disc 21 and a second lens disc 22, the first lens disc 21 being fixed to the first lens frame 11, the second lens disc 22 being fixed to the second lens frame 12. By moving the lens tray 1, the lens tray 2 can be driven to move, so that the pupil distance of the vision training instrument can be adjusted.
In some optional embodiments, the mirror plate assembly further comprises a screw rod 5, wherein the screw rod 5 comprises a positive thread section and a negative thread section, the positive thread section is connected with the right-handed nut, and the negative thread section is connected with the left-handed nut.
Specifically, the screw 5 is rotated counterclockwise to drive the second lens frame 12 and the first lens frame 11 to move in opposite directions, so that the distance between the lens 23 on the first lens disc 21 and the corresponding lens 23 on the second lens disc 22 is reduced, and the interpupillary distance is reduced; rotating the screw 5 clockwise drives the second lens frame 12 to move away from the first lens frame 11, the distance between the lenses 23 on the first lens disc 21 and the corresponding lenses 23 on the second lens disc 22 increases, and the interpupillary distance increases.
Optionally, a right-handed nut is arranged on the first mirror plate frame 11, a left-handed nut is arranged on the second mirror plate frame 12, the right-handed thread section is connected with the right-handed nut, and the reverse-handed thread section is connected with the left-handed nut; forward rotating the screw 5 to drive the first lens frame 11 and the second lens frame 12 to move towards each other, so that the distance between the lenses 23 on the first lens disc 21 and the corresponding lenses 23 on the second lens disc 22 is reduced, and the interpupillary distance is reduced; and reversely rotating the screw 5 to drive the first lens frame 11 and the second lens frame 12 to move away from each other, wherein the distance between the lenses 23 on the first lens disc 21 and the corresponding lenses 23 on the second lens disc 22 is increased, and the interpupillary distance is increased.
Further, shorten the length of screw rod 5, with the left-handed nut with the right-handed nut is connected, can reduce the accumulative error that 5 processing of screw rod caused and the error that the assembling process arouses, improves the precision that the visual training appearance interpupillary distance was adjusted to can further simplify the structure, optimize technology.
In some alternative embodiments, the screw 5 has a thread row number from a single row of threads to four rows of threads. This embodiment can enlarge the moving range of the scope frame 1, and then enlarge the interpupillary distance adjusting range of the vision training instrument.
In some alternative embodiments, the specific parameter ranges of the mirror plate assembly are as follows:
the adjusting range of the interpupillary distance is controlled to be 40mm to 100mm when the lens disc 2 is close to or far from;
the length of the screw 5 ranges from 40mm to 300 mm;
the diameter of the screw 5 ranges from 4mm to 16 mm;
the thread specification range of the screw 5, the left-handed nut and the right-handed nut is M4 to M16, and the thread pitch range is 0.5mm to 20 mm.
In some optional embodiments, the mirror plate assembly further comprises a self-aligning ball bearing 7 sleeved with the screw 5. This embodiment can eliminate the decentraction error of both sides levogyration and dextrorotation nut, improves the precision of interpupillary distance adjustment.
In some optional embodiments, the mirror plate assembly further comprises a rotating shaft 8, and the rotating shaft 8 is connected with the screw rod 5 through a coupling 9. This embodiment eliminates the eccentric error between the rotary shaft 8 and the screw 5.
Further, the interpupillary distance adjusting structure further comprises a knob 81, wherein the knob 81 is located at one end of the rotating shaft 8. The knob 81 drives the screw 5 to rotate, and can artificially drive the two lens discs 2 to approach or depart from each other.
Further optionally, the manual knob 81 may be replaced by a motor to drive the screw 5 to rotate, so that the precision is higher.
In the practical application of the method, the material is,
increasing the interpupillary distance of the vision training instrument: clockwise turning knob 81, swivel 8 rotates, under the drive of shaft coupling 9, screw rod 5 revolves, drives first lens disk frame 11 with second lens disk frame 12 moves in opposite directions, the distance between lens 23 on first lens disk 21 and the corresponding lens 23 on second lens disk 22 reduces, the interpupillary distance of eyesight training appearance reduces.
Reducing the interpupillary distance of the vision training instrument: the knob 81 is rotated counterclockwise, the rotating shaft 8 rotates, the screw 5 rotates under the driving of the coupler 9 to drive the first lens holder 11 and the second lens holder 12 to move away from each other, the distance between the lenses 23 on the first lens disc 21 and the corresponding lenses 23 on the second lens disc 22 is increased, and the pupil distance of the vision training instrument is increased.
In some alternative embodiments, the mirror plate assembly further comprises a guide bar 6, and the two mirror plate frames 1 are connected by the guide bar 6. Meanwhile, the guide rods 6 can enable the disc surfaces of the two lens discs 2 to be located on the same plane, and therefore the vision training can be better performed.
Furthermore, the guide rod 6 is a single guide rod, the single guide rod is simple in structure, the structure of the lens 23 switching component can be further compact, and the structure process of the vision training instrument is further simplified.
Optionally, the guide rod 6 is a double guide rod, and the double guide rod is used for connecting the two mirror plate racks 1, so that the structure is firmer, and the mirror plate racks 1 can stably move on the double guide rod.
In some optional embodiments, the mirror plate assembly further comprises a support frame 10, the mirror plate frame 1 is fixed on the support frame 10 through the guide rod 6, and the support frame 10 is fixed on the bottom plate of the vision training instrument. The fixation of the lens disc 2 is achieved.
Figure 5 is a flow diagram illustrating a method of controlling a mirror plate assembly of a vision training apparatus according to one exemplary embodiment.
In this alternative embodiment, there is provided a method of controlling a mirror plate assembly of a vision training apparatus, comprising:
s501: acquiring a first lens number of a target lens corresponding to a to-be-trained item selected by a user and a second lens number of an initial lens corresponding to a viewport;
specifically, a user selects a vision training item type, a controller of the vision training instrument acquires the target lens corresponding to the vision item type according to the vision training item type and the corresponding relationship between a preset vision item type and a lens type, and then acquires the first lens number of the target lens according to the corresponding relationship between the preset lens type and the lens number; and the vision training instrument automatically memorizes the second lens number of the initial lens corresponding to the viewport.
Further, the initial number of the lens is 0.
Further, the viewport is a position where the eyes are gazed at when the user performs vision training.
S502: determining the rotation angle of the lens disc according to the first lens number, the second lens number and the preset arrangement relation of the lenses on the lens disc, wherein the arrangement relation is used for indicating the angle of each numbered lens relative to the reference position of the lens disc;
specifically, the controller of the vision training apparatus determines the rotation angle of the lens disc according to the first lens number of the target lens, the second lens number of the initial lens, and the arrangement relationship of the preset lenses on the lens disc. For example, if the target lens is a red lens, the corresponding first lens number is 5, the initial lens is a light-shielding sheet, and the corresponding second lens number is 1, the position of the No. 5 red lens is determined to be rotated to the No. 1 light-shielding sheet, that is, the angle of rotation required by the viewport position, according to the preset arrangement relationship of the lenses on the lens tray.
Further, the arrangement relationship is used for indicating the angle of each numbered lens relative to the reference position of the lens disc.
Further, the rotation angle is a positive difference between the angle of the target lens relative to the reference position and the angle of the initial lens relative to the reference position. For example, if the angle of the No. 5 red piece with respect to the reference position is 80 °, and the angle of the No. 1 shade piece with respect to the reference position is 20 °, the rotation angle of the lens disc is 60 °.
Further, the reference position is a specific position on the lens disc, and the specific position may be a position of a reference notch of the lens disc.
This embodiment allows the lens disc to still achieve accurate switching of the lenses when the lenses are non-uniformly distributed on the lens disc.
S503: acquiring a difference value between the first lens serial number and the second lens serial number;
specifically, the difference is the first lens number — the second lens number.
Optionally, the difference is the second number-the first lens number.
S504: judging whether the difference value is a positive number;
s505: if the difference value is a positive number, controlling the lens disc to rotate clockwise by the rotation angle so as to enable the target lens to rotate to a position corresponding to the view port;
specifically, when the difference is equal to the first lens number-the second lens number, if the difference is a positive number, the lens disc is controlled to rotate clockwise by the rotation angle, so that the target lens rotates to the position corresponding to the view port. For example, if the target lens is a red lens, the corresponding first lens is numbered 5, the initial lens is a gobo lens, the corresponding second lens is numbered 1, and the difference is 5-1-4, which is a positive number, the lens disc is controlled to rotate clockwise by 60 °.
Optionally, when the difference is equal to the second number — the first lens number, if the difference is a positive number, the lens disc is controlled to rotate counterclockwise by the rotation angle, so that the target lens is rotated to a position corresponding to the view port.
S506: and if the difference is a non-positive number, controlling the lens disc to rotate counterclockwise by the rotation angle so as to rotate the target lens to a position corresponding to the view port.
Specifically, when the difference is the first lens number-the second lens number, if the difference is a non-positive number, the lens disc is controlled to rotate counterclockwise by the rotation angle, so that the target lens is rotated to the position corresponding to the view port. For example, if the target lens is a shade, the corresponding first lens is numbered 1, the initial lens is a red lens, the corresponding second lens is numbered 5, and the difference is 1-5-4, which is a non-positive number, the lens disc is controlled to rotate 60 ° counterclockwise.
Optionally, when the difference is the second number — the first lens number, if the difference is a non-positive number, the lens disc is controlled to rotate clockwise by the rotation angle, so that the target lens rotates to a position corresponding to the view port.
According to the implementation mode of the optional embodiment, after the user selects the vision training type, the mirror disc assembly of the vision training instrument can automatically switch the corresponding type of lenses to perform corresponding vision training, and the vision training instrument is more intelligent.
Figure 6 is a flow diagram illustrating a method of controlling a mirror plate assembly of yet another vision training apparatus in accordance with an exemplary embodiment.
S601: acquiring a first lens number of a target lens corresponding to a to-be-trained item selected by a user and a second lens number of an initial lens corresponding to a viewport;
s602: determining the rotation angle of the lens disc according to the first lens number, the second lens number and the preset arrangement relation of the lenses on the lens disc, wherein the arrangement relation is used for indicating the angle of each numbered lens relative to the reference position of the lens disc;
s603: controlling the lens disc to rotate by the rotation angle according to a set direction so as to enable the target lens to rotate to a position corresponding to the view port;
s604: acquiring the total time of a gap detected by a sensor passing through the sensor;
specifically, when the gap of the lens disc skips over the sensor, the sensor records the time length of the passing gap skips over the sensor and accumulates the time length to obtain the total time length of the passing gap missing over the sensor in the rotation process of the lens disc.
S605: judging whether the total duration is within a preset range or not;
specifically, the preset range value is as follows: T1-T2, wherein,
t1 | the first lens number — the second lens number | the time T1 at which a single said positioning notch passes the sensor;
t2 (| the first lens number-the second lens number | -1) | time T1+ time T2 when a single the reference notch passes the sensor;
further, t2-t1< t 1.
S606: if the total duration is within a preset range, the stop position of the target lens is correct;
s607: and if the total time length is not in the preset range, the stop position of the target lens is wrong.
In the implementation manner of this optional embodiment, after the lens switching component of the vision training apparatus completes automatic switching, it is determined whether the stop position of the target lens is correct, so as to further ensure the accuracy of lens switching.
Figure 7 is a flow diagram illustrating a method of controlling a mirror plate assembly of yet another vision training apparatus in accordance with an exemplary embodiment.
S701: acquiring the time length of a gap detected by a sensor passing through the sensor;
specifically, when the notch of the lens disc skips over the sensor, the sensor records the time length of the sensor that the notch of the lens disc skips over the sensor.
S702: judging the sizes of a first time length and a second time length, wherein the first time length is the time length of the gap passing through the sensor detected by the sensor at the previous time, and the second time length is the time length of the gap passing through the sensor detected by the sensor at the present time;
specifically, the sensor determines the first duration and the second duration, so as to determine whether the reference notch of the lens disc rotates to the position of the sensor.
S703: and if the second duration is longer than the first duration, stopping the operation of the mirror disk assembly, and resetting the mirror disk assembly to zero.
Specifically, if the second duration is longer than the first duration, it is verified that the reference notch of the lens disc rotates to the sensor position, that is, the reset positions of all movable parts of the vision training instrument are reset, and all movable parts of the vision training instrument are reset to zero.
S704: acquiring a first lens number of a target lens corresponding to a to-be-trained item selected by a user and a second lens number of an initial lens corresponding to a viewport;
s705: determining the rotation angle of the lens disc according to the first lens number, the second lens number and the preset arrangement relation of the lenses on the lens disc, wherein the arrangement relation is used for indicating the angle of each numbered lens relative to the reference position of the lens disc;
s706: and controlling the lens disc to rotate the rotating angle according to a set direction so as to enable the target lens to rotate to a position corresponding to the view port.
In the embodiment of this embodiment, when the vision training apparatus is powered on, the mirror plate assembly is reset to zero, and the lens with the initial number is located at the position corresponding to the viewport of the lens plate, so that when the vision training apparatus is in first operation, the number of the second lens of the initial lens is a default value.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (8)
1. A mirror plate assembly for a vision training apparatus, comprising:
a mirror plate frame;
the two lens discs are symmetrically arranged on the two lens disc frames from left to right, the disc surfaces of the two lens discs are positioned on the same plane, and a plurality of lenses are arranged on the lens discs;
the notch is arranged on the outer circumference of the lens disc and is arranged at intervals of the lenses, the notch comprises a reference notch and a positioning notch, and the width of the reference notch is larger than that of the positioning notch;
the sensor is fixed on the lens disc frame, clamped on the lens disc and used for judging the position of the lens;
the controller is used for acquiring the serial number of the lens, controlling the lens disc to rotate and enabling the target lens to rotate to a position corresponding to the view port;
the power device is used for driving the lens disc to rotate;
the sensor is a photoelectric sensor, the lens disc rotates for a specific angle under the driving of the power device, when the positioning notch is coincided with the photoelectric sensor, the total time length of the notch passing through the photoelectric sensor, which is detected by the photoelectric sensor, is judged, and if the total time length is within a preset range, the stop position of the lens disc is correct.
2. The mirror disk assembly of claim 1 further comprising a transmission structure including a gear transmission structure connected to the power device for rotating the lens disk.
3. The mirror disk assembly of claim 1,
the mirror plate frame comprises a first mirror plate frame and a second mirror plate frame, a left-handed nut is arranged on the first mirror plate frame, and a right-handed nut is arranged on the second mirror plate frame;
the lens disc comprises a first lens disc and a second lens disc, the first lens disc is fixed on the first lens disc frame, and the second lens disc is fixed on the second lens disc frame.
4. The mirror disk assembly of claim 3 further comprising a threaded rod comprising a forward threaded section and a reverse threaded section, the forward threaded section being connected to the right-hand nut and the reverse threaded section being connected to the left-hand nut.
5. The mirror tray assembly of claim 1, further comprising a guide bar by which the two mirror tray frames are connected.
6. A method of controlling a mirror plate assembly of a vision training apparatus as claimed in any one of claims 1 to 5, comprising:
acquiring a first lens number of a target lens corresponding to a to-be-trained item selected by a user and a second lens number of an initial lens corresponding to a viewport;
determining the rotation angle of the lens disc according to the first lens number, the second lens number and the preset arrangement relation of the lenses on the lens disc, wherein the arrangement relation is used for indicating the angle of each numbered lens relative to the reference position of the lens disc;
controlling the lens disc to rotate by the rotation angle according to a set direction so as to enable the target lens to rotate to a position corresponding to the view port;
control the lens dish rotates according to setting for the direction rotation angle specifically includes:
acquiring a difference value between the first lens serial number and the second lens serial number;
judging whether the difference value is a positive number;
if the difference value is a positive number, controlling the lens disc to rotate clockwise by the rotation angle;
if the difference value is a non-positive number, controlling the lens disc to rotate counterclockwise by the rotation angle; or the like, or, alternatively,
if the difference value is positive, controlling the lens disc to rotate counterclockwise by the rotation angle;
if the difference value is a non-positive number, controlling the lens disc to rotate clockwise by the rotation angle;
the control method further comprises judging whether the stop position of the target lens is correct:
acquiring the total time of a gap detected by a sensor passing through the sensor;
judging whether the total duration is within a preset range or not;
if the total duration is within a preset range, the stop position of the target lens is correct;
and if the total time length is not in the preset range, the stop position of the target lens is wrong.
7. The control method according to claim 6, characterized by further comprising:
when the vision training instrument is started, the mirror disc assembly resets and returns to zero.
8. The control method according to claim 7,
the resetting of mirror plate assembly to zero specifically includes:
acquiring the time length of a gap detected by a sensor passing through the sensor;
judging the sizes of a first time length and a second time length, wherein the first time length is the time length of the gap passing through the sensor detected by the sensor at the previous time, and the second time length is the time length of the gap passing through the sensor detected by the sensor at the present time;
and if the second duration is longer than the first duration, stopping the operation of the mirror disk assembly, and resetting the mirror disk assembly to zero.
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| CN109497928A (en) * | 2018-12-28 | 2019-03-22 | 杭州精飞光学仪器制造有限公司 | A kind of myopia measuring device and its application method |
| CN109497933A (en) * | 2018-12-30 | 2019-03-22 | 杭州精飞光学仪器制造有限公司 | A kind of eyesight testing eyepiece regulating device |
| CN109662874B (en) * | 2019-02-01 | 2024-02-13 | 厦门市九投十科技有限公司 | Lens movement structure for vision function training |
| CN112515931B (en) * | 2020-12-01 | 2022-08-23 | 广东英华投资控股有限公司 | Vision rehabilitation correction training mechanism |
| CN114306000B (en) * | 2021-12-31 | 2023-10-03 | 重庆能能科技有限公司 | visual training device |
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