CN115581434B - High-precision optometry device and optometry method - Google Patents
High-precision optometry device and optometry method Download PDFInfo
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- CN115581434B CN115581434B CN202211354360.2A CN202211354360A CN115581434B CN 115581434 B CN115581434 B CN 115581434B CN 202211354360 A CN202211354360 A CN 202211354360A CN 115581434 B CN115581434 B CN 115581434B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/103—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0075—Apparatus for testing the eyes; Instruments for examining the eyes provided with adjusting devices, e.g. operated by control lever
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Abstract
The invention discloses a high-precision optometry device and an optometry method, relates to the technical field of comprehensive optometry instruments for eyes, and solves the problem that an adjusting degree cannot be precisely rotated, wherein the problems comprise an adjusting arm, a rotating wheel, a viewing window, a cylindrical lens shaft and a degree conversion rotary table; the device also comprises an incomplete gear and a rotating plate; a gap component for stopping rotation after the degree conversion turntable rotates for a certain angle; a reciprocating assembly for driving the degree conversion turntable to do small-angle reciprocating motion; the automatic vision degree adjusting device is used for enabling the clearance assembly and the reciprocating assembly to be matched with the assembly, fine adjustment is carried out after manual rough adjustment, the motor is started, the first gear is meshed with the incomplete gear to rotate, the degree conversion turntable is driven to rotate by a certain angle, after the incomplete gear is separated from the first gear, the rotating rod drives the rotating column to do slow reciprocating rotation, the degree conversion turntable is convenient to adjust in a reciprocating mode, a patient can find the most proper vision degree conveniently, the rotating amplitude and the rotating speed in the adjusting mode can be kept stable, and the control accuracy is high.
Description
Technical Field
The invention relates to the technical field of comprehensive optometry instruments for eyes, in particular to a high-precision optometry device and an optometry method.
Background
The comprehensive optometry instrument is originally in the form of an instrument for checking the function of the extraocular muscles, can be used for checking ametropia, has the function of checking the ametropia of the extraocular muscles, and can be used as a basic checking tool for ophthalmic vision workers, and the function of the comprehensive optometry instrument cannot be replaced.
When the existing sunshine appearance is used, the eyes are aligned with the vision holes, the cylindrical lens shaft needs to be adjusted back and forth manually to adjust the degree of the vision phase adaptation of a patient, when the cylindrical lens shaft is adjusted to be close to the vision degree of the patient, the cylindrical lens shaft needs to be rotated back and forth repeatedly, namely, the cylindrical lens shaft is rotated repeatedly on the basis of the degree to check the condition when exceeding or being lower than the degree, so that whether the degree is suitable or not is verified, the existing manual operation is performed, the manual rotation force cannot be accurately controlled, the rotation amplitude and speed of each time are different, the control accuracy is not high, and the verification of whether the degree is suitable or not is inconvenient.
Therefore, we propose a high-precision optometry device and optometry method.
Disclosure of Invention
The invention aims to provide a high-precision optometry device and an optometry method, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the high-precision optometry device comprises an adjusting arm, wherein a rotating wheel with a plurality of adjusting wheels is movably connected to the adjusting arm, a viewing window hole and a cylindrical lens shaft are arranged on the rotating wheel, and a degree conversion rotary table in rotary fit with the cylindrical lens shaft is arranged on the rotating wheel; the device also comprises an incomplete gear and a rotating plate; the clearance assembly drives the degree conversion turntable to rotate for a certain angle through the incomplete gear and then stops rotating; the reciprocating assembly is used for enabling the rotating plate to drive the degree conversion turntable to do small-angle reciprocating motion in a gap where the gap assembly stops; and the matching component is used for matching the clearance component and the reciprocating component.
Preferably, the clearance assembly comprises a motor fixedly connected in the rotating wheel, an output shaft of the motor is fixedly connected with a center shaft of the incomplete gear, a first gear is meshed with the incomplete gear, a plurality of fixing plates are arranged on the center shaft of the first gear, the end parts of the fixing plates are arc-shaped, the center shaft of the incomplete gear is fixedly connected with a contact plate in rotating fit with the fixing plates, a notch is formed in the contact plate, the position of the notch corresponds to the position of a latch of the incomplete gear, a rotating rod is fixedly connected with the center shaft of the first gear, and a connecting assembly for driving the degree conversion turntable to rotate is arranged at the end parts of the rotating rod.
Preferably, the connecting assembly comprises a telescopic rod fixedly connected with the center shaft of the degree conversion turntable, the degree conversion turntable rotates in the rotating wheel, a rotating column is fixedly connected to the end part of the telescopic rod, a movable groove in the shape of a circular truncated cone is formed in the end face of the rotating column, and the rotating rod penetrates into the movable groove to be in abutting press fit with the rotating column.
Preferably, the reciprocating assembly comprises a self-rotating rod rotating in the rotating wheel, the top of the self-rotating rod is fixedly connected with a rotating plate in a fan shape, the outer surface of the rotating column is fixedly connected with an annular plate in rotating fit with the rotating plate, the self-rotating rod is fixedly connected with two limiting plates, a sliding groove is formed in the self-rotating rod and positioned between the two limiting plates, and a rotating assembly driving the self-rotating rod to rotate in a reciprocating manner is arranged in the sliding groove.
Preferably, the rotating assembly comprises a sleeve rotating in the rotating wheel, a rotating rod which is obliquely distributed is fixedly connected to the end part of the sleeve, the end part of the rotating rod penetrates into the sliding groove, the end part of the rotating rod is located on the central axis of the sleeve, a sleeve rod is sleeved in the sleeve, a first sliding groove is formed in the sleeve rod, a sliding plate which is fixedly connected with the inner wall of the sleeve is in sliding fit with the first sliding groove, and an extrusion plate which is in abutting-press fit with the contact plate is fixedly connected to the end part of the sleeve rod.
Preferably, the matching component comprises a rotating plate rotating in the rotating wheel, a second sliding groove is formed in the rotating plate, a sliding rod is slidably matched in the second sliding groove, a first connecting rod which is obliquely distributed is rotatably connected to the end part of the sliding rod, a first lantern ring hinged to the first connecting rod is rotatably matched on the lantern rod, a second connecting rod is rotatably connected to the other end of the rotating plate, and a second lantern ring hinged to the second connecting rod is rotatably matched to the end part of the rotating column.
Preferably, the matching component further comprises a movable rod rotating in the rotating wheel, the end part of the movable rod is connected with an elastic pull rope connected with the rotating wheel in a hanging mode, a fixed column in pressing fit with the movable rod is fixedly connected to the fixed plate, a pressing rod in inclined distribution is fixedly connected to the side face of the movable rod, and the pressing rod is connected with the sliding rod in a rotating mode.
A high-precision optometry method of an optometry device comprises the following steps;
s1, positioning, namely adjusting the adjusting arm and the rotating wheel to enable eyes of a patient to correspond to the window hole;
s2, coarse adjustment, manual rotation of the cylindrical lens shaft, and enabling the degree rotated by the degree conversion turntable to be approximately close to the vision degree of eyes of a patient;
s3, fine adjustment is performed, the motor is started to be meshed with the first gear to rotate, the rotating rod is fixedly pressed against the rotating column to drive the degree conversion turntable to rotate by a certain angle, when the incomplete gear is separated from the first gear, the rotating rod is in reciprocating rotation, the rotating rod is separated from the rotating column to be in contact with the rotating column, the rotating rod drives the rotating column to perform slow reciprocating rotation, and accordingly the degree conversion turntable can be conveniently adjusted in a reciprocating mode, and a patient can conveniently find the most proper vision degree.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, manual rough adjustment is performed, then fine adjustment is performed, the motor is started, the first gear is meshed with the incomplete gear to rotate, the degree conversion turntable is driven to rotate for a certain angle under the pressing fixation of the rotating rod and the rotating column, after the incomplete gear is separated from the first gear, the rotating rod is in reciprocating rotation, the rotating rod is separated from the rotating column to contact, and the rotating rod drives the rotating column to perform slow reciprocating rotation, so that the degree conversion turntable can be conveniently and reciprocally adjusted, a patient can conveniently find the most proper vision degree, the rotating amplitude and the rotating speed in the adjustment mode can be kept stable, and the control accuracy is high.
2. When the incomplete gear is separated from the first gear, the fixed plate is matched with the contact plate and the notch, so that the first gear keeps unchanged in position, the movable rod is conveniently and stably pressed, and the running stability of the loop rod and the rotating column is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic side view of the partial structure of FIG. 2;
FIG. 4 is a schematic view of the motor of FIG. 3 with a motor removed;
FIG. 5 is a schematic side view of the partial structure of FIG. 4;
FIG. 6 is a schematic diagram of the structure of FIG. 5 in a disassembled state;
FIG. 7 is a schematic view of the partial structure of FIG. 6;
FIG. 8 is a schematic view of the partial structure of FIG. 7;
fig. 9 is a partially disassembled schematic view of the structure of fig. 8.
In the figure: 1-an adjusting arm; 2-rotating wheels; 3-viewing aperture; 4-a cylindrical lens shaft; 5-degree conversion turntables; 6-incomplete gear; 7-rotating the plate; an 8-gap assembly; 9-a motor; 10-a first gear; 11-a fixing plate; 12-contact plate; 13-notch; 14-rotating a rod; 15-a connection assembly; 16-a telescopic rod; 17-rotating the column; 18-a movable groove; 19-a reciprocating assembly; 20-self-rotating rod; 22-an annular plate; 23-limiting plates; 24-sliding grooves; 25-a rotating assembly; 26-sleeve; 27-rotating rod; 28-loop bar; 29-a first chute; 30-sliding plates; 31-squeeze plate; 32-a mating assembly; 33-rotating plate; 34-a second chute; 35-a slide bar; 36-a first connecting rod; 37-a first collar; 38-a second connecting rod; 39-a second collar; 40-a movable rod; 41-elastic pull ropes; 42-fixing the column; 43-compression bar.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-3, a high-precision optometry device in the drawings comprises an adjusting arm 1, wherein a rotating wheel with a plurality of adjusting wheels is movably connected to the adjusting arm 1, a viewing hole 3 and a cylindrical lens shaft 4 are arranged on the rotating wheel 2, and a degree conversion rotary disc 5 in running fit with the cylindrical lens shaft 4 is arranged on the rotating wheel 2; further comprising an incomplete gear 6 and a rotation plate 7; the clearance assembly 8 drives the degree conversion turntable 5 to rotate by a certain angle through the incomplete gear 6, and then the rotation of the clearance assembly 8 is stopped; the reciprocating assembly 19, the reciprocating assembly 19 is used for making the rotating plate 7 drive the degree conversion turntable 5 to do small-angle reciprocating motion in the gap where the gap assembly 8 stops; a mating assembly 32, the mating assembly 32 being configured to mate the clearance assembly 8 and the shuttle assembly 19.
Referring to fig. 3-4, the gap assembly 8 in the drawing includes a motor 9 connected and fixed in the rotating wheel 2, an output shaft of the motor 9 is fixedly connected with a central shaft of the incomplete gear 6, a first gear 10 is meshed on the incomplete gear 6, a plurality of fixing plates 11 are fixedly connected with the central shaft of the first gear 10, an end part of each fixing plate 11 is in an arc structure, a contact plate 12 in rotation fit with the fixing plate 11 is fixedly connected with the central shaft of the incomplete gear 6, a gap 13 is formed in each contact plate 12, the position of each gap 13 corresponds to the position of a clamping tooth of the incomplete gear 6, a rotating rod 14 is fixedly connected with the central shaft of the first gear 10, and a connecting assembly 15 for driving the degree conversion turntable 5 to rotate is arranged at the end part of each rotating rod 14.
Referring to fig. 4-6, the connecting assembly 15 in the drawings includes a telescopic rod 16 fixedly connected with a central shaft of the degree conversion turntable 5, the degree conversion turntable 5 rotates in the rotary wheel 2, a rotary column 17 is fixedly connected to an end of the telescopic rod 16, a movable groove 18 in a shape of a truncated cone is formed in an end face of the rotary column 17, and the rotary rod 14 penetrates into the movable groove 18 to be in press fit with the rotary column 17.
Referring to fig. 6-7, the reciprocating assembly 19 in the drawings includes a rotation rod 20 rotating in the rotation wheel 2, a fan-shaped rotation plate 7 fixedly connected to the top of the rotation rod 20, an annular plate 22 rotatably matched with the rotation plate 7 fixedly connected to the outer surface of the rotation column 17, two limiting plates 23 fixedly connected to the rotation rod 20, a sliding groove 24 provided on the rotation rod 20 between the two limiting plates 23, and a rotation assembly 25 driving the self-rotation rod 20 to rotate reciprocally in the sliding groove 24.
Referring to fig. 8-9, the rotating assembly 25 in the drawings includes a sleeve 26 rotating in the rotating wheel 2, a rotating rod 27 obliquely distributed is fixedly connected to an end of the sleeve 26, the end of the rotating rod 27 extends into the sliding groove 24, the end of the rotating rod 27 is located on a central axis of the sleeve 26, a sleeve rod 28 is sleeved in the sleeve 26, a first sliding groove 29 is formed in the sleeve rod 28, a sliding plate 30 fixedly connected with an inner wall of the sleeve 26 is slidably matched with the first sliding groove 29, and an extrusion plate 31 in press fit with the contact plate 12 is fixedly connected to an end of the sleeve rod 28.
A high-precision optometry method of an optometry device comprises the following steps;
s1, positioning, adjusting the adjusting arm 1 and the rotating wheel 2 to enable eyes of a patient to correspond to the vision hole 3;
s2, coarse adjustment, namely manually rotating the cylindrical lens shaft 4 to enable the degree rotated by the degree conversion rotary table 5 to be approximately close to the vision degree of eyes of a patient;
s3, fine adjustment is performed, the first gear 10 is meshed through the incomplete gear 6 to rotate through the starting motor 9, the degree conversion turntable 5 is driven to rotate for a certain angle under the pressing fixation of the rotating rod 14 and the rotating column 17, when the incomplete gear 6 is separated from the first gear 10, the rotating rod 20 is rotated in a reciprocating mode, the rotating rod 14 is separated from the rotating column 17, the rotating rod 20 drives the rotating column 17 to rotate in a slowly reciprocating mode, and therefore the degree conversion turntable 5 is convenient to adjust in a reciprocating mode, and a patient can find the most proper vision degree conveniently.
In this embodiment, the motor 9 rotates to drive the incomplete gear 6 to continuously rotate, the incomplete gear 6 engages with the first gear 10, the notch 13 is located above and is not matched with the fixed plate 11, the first gear 10 drives the rotating rod 14 to rotate, under the action of the matching component 32, the inner wall of the movable groove 18 (the section is inclined angle) of the rotating column 17 is pressed and fixed with the rotating rod 14, the rotating rod drives the rotating column 17 to rotate, under the action of the telescopic rod 16, the degree conversion turntable 5 rotates, and after the degree conversion turntable 5 rotates for a certain angle, the incomplete gear 6 and the first gear 10 are disengaged;
after the incomplete gear 6 and the first gear 10 are disengaged, the fixed plate 11 is in press fit with the contact plate 12, because the fixed plate 11 is in an arc structure matched with the contact plate 12, the fixed plate 11, the first gear 10 and the rotating rod 14 do not rotate, the original position is kept, the rotating column 17 is far away from the rotating shaft under the action of the matching component 32, the telescopic rod 16 is contracted, the annular plate 22 is in press contact with the rotating plate 7, meanwhile, the pressing plate 31 moves and presses against the contact plate 12 (the sliding plate 30 slides in the first sliding groove 29), the continuously rotating incomplete gear 6 drives the contact plate 12 to rotate, the contact plate 12 drives the pressing plate 31 to rotate, the rotating sleeve rod 28 rotates under the action of the sliding plate 30 and the first sliding groove 29, the rotating rod 27 rotates circumferentially, the rotating rod 20 and the rotating plate 7 reciprocate under the action of the sliding groove 24 and the limiting plate 23, and the rotating plate 7 rotates reciprocally through the annular plate 22 contacted with the rotating rod 17, so that the degree conversion turntable 5 rotates reciprocally slowly, and the most proper vision of a patient can be found conveniently;
the rotating rod 14 is in pressing contact with the rotating column 17, under the action of friction force, the rotating rod 14 drives the rotating column 17 to rotate, the annular plate 22 is in pressing contact with the rotating plate 7, under the action of friction force, the second toothed plate drives the rotating column 17 to rotate, the extruding plate 31 is in pressing contact with the contact plate 12, under the action of friction force, the contact plate 12 drives the sleeve rod 28 to rotate, and the cavity in the rotating wheel 2 is convenient for other structures to operate.
Example two
For further explanation and supplementation of the first embodiment, referring to fig. 7-9, the matching component 32 in the drawing includes a rotating plate 33 rotating in the rotating wheel 2, a second sliding groove 34 is provided on the rotating plate 33, a sliding rod 35 is slidably matched in the second sliding groove 34, a first connecting rod 36 is rotatably connected to an end of the sliding rod 35 in an inclined manner, a first collar 37 hinged to the first connecting rod 36 is rotatably matched to the collar 28, a second connecting rod 38 is rotatably connected to the other end of the rotating plate 33, and a second collar 39 hinged to the second connecting rod 38 is rotatably matched to an end of the rotating post 17.
In this embodiment, after the incomplete gear 6 and the first gear 10 are disengaged, the rotating plate 33 rotates, the slide rod 35 moves downward, under the action of the inclined first connecting rod 36, the sleeve rod 28 moves along the sleeve 26, so that the pressing plate 31 abuts against the contact plate 12, the contact plate 12 rotates to drive the pressing plate 31 to rotate, and the second connecting rod 38 simultaneously rotates the rotating plate 33, so that the rotating column 17 is far away from the rotating rod 14, so that the annular plate 22 abuts against the rotating plate 7, and the rotating plate 7 drives the rotating column 17 to rotate reciprocally.
Example III
In the third embodiment, referring to fig. 7-8, the matching component 32 in the illustrated embodiment further includes a movable rod 40 rotating in the rotating wheel 2, an elastic pull rope 41 connected with the rotating wheel 2 is hung at the end of the movable rod 40, a fixed column 42 in press fit with the movable rod 40 is fixedly connected to the fixed plate 11, a pressing rod 43 in inclined distribution is fixedly connected to the side surface of the movable rod 40, and the pressing rod 43 is rotatably connected with the sliding rod 35.
In this embodiment, after the incomplete gear 6 and the first gear 10 are disengaged, the fixed plate 11 is pressed against the contact plate 12, and the fixed post 42 is located at the lowest position, so as to press the movable rod 40, so that the pressing rod 43 moves downward, and the sliding rod 35 is driven to move downward, and the rotating plate 33 rotates under the action of the second sliding groove 34.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A high-precision optometry device comprising:
the adjusting arm (1), the adjusting arm (1) is movably connected with a rotating wheel (2) with a plurality of adjusting wheels, the rotating wheel (2) is provided with a viewing window hole (3) and a cylindrical lens shaft (4), and the rotating wheel (2) is provided with a degree conversion rotary table (5) which is in running fit with the cylindrical lens shaft (4);
characterized by further comprising:
an incomplete gear (6) and a rotating plate (7);
the clearance assembly (8) drives the degree conversion turntable (5) to rotate for a certain angle through the incomplete gear (6) and then stops rotating;
the reciprocating assembly (19) is used for enabling the rotating plate (7) to drive the degree conversion rotary table (5) to do small-angle reciprocating motion in a gap where the gap assembly (8) stops;
-a mating assembly (32), the mating assembly (32) for mating the clearance assembly (8) and the shuttle assembly (19);
the clearance assembly (8) is fixed in including connecting motor (9) in rotor (2), motor (9) output shaft with incomplete gear (6) axis connection is fixed, the meshing has first gear (10) on incomplete gear (6), a plurality of fixed plates (11) of axis fixedly connected with in first gear (10), fixed plate (11) tip is arc structure, incomplete gear (6) axis fixedly connected with fixed plate (11) normal running fit's contact plate (12), notch (13) have been seted up on contact plate (12), notch (13) position with the latch position of incomplete gear (6) corresponds, axis fixedly connected with dwang (14) in first gear (10), dwang (14) tip is equipped with drives digital conversion carousel (5) pivoted coupling assembling (15).
2. A high-precision optometry apparatus according to claim 1, wherein: the connecting assembly (15) comprises a telescopic rod (16) fixedly connected with the center shaft of the degree conversion turntable (5), the degree conversion turntable (5) rotates in the rotating wheel (2), a rotating column (17) is fixedly connected to the end part of the telescopic rod (16), a movable groove (18) in the shape of a circular truncated cone is formed in the end face of the rotating column (17), and the rotating rod (14) penetrates into the movable groove (18) to be in abutting fit with the rotating column (17).
3. A high-precision optometry apparatus according to claim 2, wherein: the reciprocating assembly (19) comprises a self-rotating rod (20) which rotates in the rotating wheel (2), the top of the self-rotating rod (20) is fixedly connected with a rotating plate (7) which is in a fan shape, an annular plate (22) which is in rotating fit with the rotating plate (7) is fixedly connected to the outer surface of the rotating column (17), two limiting plates (23) are fixedly connected to the self-rotating rod (20), sliding grooves (24) are formed in the self-rotating rod (20) and are positioned between the two limiting plates (23), and rotating assemblies (25) which drive the self-rotating rod (20) to rotate in a reciprocating mode are arranged in the sliding grooves (24).
4. A high-precision optometry apparatus according to claim 3, wherein: the rotating assembly (25) comprises a sleeve (26) rotating in the rotating wheel (2), a rotating rod (27) which is obliquely distributed is fixedly connected to the end part of the sleeve (26), the end part of the rotating rod (27) penetrates deep into the sliding groove (24), the end part of the rotating rod (27) is located on the central axis of the sleeve (26), a sleeve rod (28) is sleeved in the sleeve (26), a first sliding groove (29) is formed in the sleeve rod (28), a sliding plate (30) fixedly connected with the inner wall of the sleeve (26) is slidably matched with the first sliding groove (29), and a squeezing plate (31) in abutting fit with the contact plate (12) is fixedly connected to the end part of the sleeve rod (28).
5. The high-precision optometry apparatus of claim 4, wherein: the cooperation subassembly (32) include in rotating board (33) of rotation in rotating wheel (2), second spout (34) have been seted up on rotating board (33), sliding fit has slide bar (35) in second spout (34), slide bar (35) tip pivoted is connected with head rod (36) that are slope distribution, pivoted fit on loop bar (28) have with head rod (36) articulated first lantern ring (37), rotating board (33) other end pivoted is connected with second connecting rod (38), pivoted fit of steering column (17) tip have with second connecting rod (38) articulated second lantern ring (39).
6. The high-precision optometry apparatus of claim 5, wherein: the cooperation subassembly (32) still include in rotating movable rod (40) of wheel (2) internal rotation, movable rod (40) tip articulates have with elastic stay cord (41) that wheel (2) are connected are rotated, fixedly connected with on fixed plate (11) with movable rod (40) support press fit's fixed column (42), movable rod (40) side fixedly connected with is depression bar (43) that slope distributes, depression bar (43) with slide bar (35) swivelling joint.
7. The method of refraction for a high-accuracy refraction device according to claim 6, comprising the steps of;
s1, positioning, namely adjusting the adjusting arm (1) and the rotating wheel (2) to enable eyes of a patient to correspond to the window hole (3);
s2, coarse adjustment, manual rotation of the cylindrical lens shaft (4) is carried out, so that the degree rotated by the degree conversion rotary disc (5) is approximately close to the vision degree of eyes of a patient;
s3, fine adjustment is achieved by starting the motor (9), meshing the first gear (10) through the incomplete gear (6) to rotate, and under the condition that the rotating rod (14) and the rotating column (17) are pressed and fixed, the degree conversion turntable (5) is driven to rotate for a certain angle, when the incomplete gear (6) is separated from the first gear (10), the rotating rod (20) rotates reciprocally, the rotating rod (14) is separated from the rotating column (17) to be in contact, and the rotating rod (20) drives the rotating column (17) to rotate reciprocally slowly, so that the degree conversion turntable (5) is convenient to adjust reciprocally, and a patient can find the most proper vision degree conveniently.
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| CN202211354360.2A CN115581434B (en) | 2022-11-01 | 2022-11-01 | High-precision optometry device and optometry method |
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| CN202211354360.2A CN115581434B (en) | 2022-11-01 | 2022-11-01 | High-precision optometry device and optometry method |
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| CN115581434B true CN115581434B (en) | 2023-10-20 |
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