CN115581434A - High-precision optometry device and optometry method - Google Patents
High-precision optometry device and optometry method Download PDFInfo
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- CN115581434A CN115581434A CN202211354360.2A CN202211354360A CN115581434A CN 115581434 A CN115581434 A CN 115581434A CN 202211354360 A CN202211354360 A CN 202211354360A CN 115581434 A CN115581434 A CN 115581434A
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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, which relate to the technical field of comprehensive optometry instruments for eyes and solve the problem that the adjustment degree cannot be accurately rotated, and the optometry device comprises an adjusting arm, a rotating wheel, a sight window hole, a cylindrical lens shaft and a degree conversion turntable; the device also comprises an incomplete gear and a rotating plate; the clearance assembly stops rotating after the degree conversion turntable rotates for a certain angle; a reciprocating component which drives the degree conversion turntable to do reciprocating motion with small angle; a pivoted range and speed homoenergetic remain stable for making clearance subassembly and reciprocal subassembly complex, carry out the fine setting again after through manual coarse adjusting, starter motor, through the first gear revolve of incomplete gear engagement, drive degree transform carousel and rotate certain angle, after incomplete gear breaks away from first gear, the rotation pole drives the rotation post and is slow reciprocating rotation, the degree transform carousel reciprocating adjustment of being convenient for, the patient of being convenient for finds the most suitable eyesight degree, among this regulative mode, the control precision 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 phoropter, which was originally developed as an instrument for examining the function of the extraocular muscle, can be used not only for the ametropia examination but also for the ametropia examination of the extraocular muscle, and has the function of examining the extraocular muscle, and as a basic examination tool for ophthalmologic visual workers, it has no alternative function.
When current sunshine appearance uses, align eyes and window hole, need make a round trip the manual cylinder axle of slowly adjusting, so that adjust to the degree with patient's eyesight looks adaptation, and when cylinder axle adjustment to the eyesight degree that is close the patient, need make a round trip reciprocal rotatory cylinder axle, rotate cylinder axle many times on the basis of this degree promptly, look over the condition when exceeding or being less than this degree, so that verify whether this degree is suitable, and current manual the operation of passing through, the control that manual rotatory dynamics can not be accurate, the range and the speed of at every turn rotating differ, the control precision is not high, be not convenient for verify whether this degree is suitable.
Therefore, a high-precision optometry device and an optometry method are provided.
Disclosure of Invention
The present invention is directed to provide a high-precision optometry apparatus and an optometry method, which solve the problems of the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-precision optometry device comprises an adjusting arm, wherein a rotating wheel with a plurality of adjusting wheels is movably connected onto the adjusting arm, a window hole and a cylindrical lens shaft are arranged on the rotating wheel, and a degree conversion turntable which is in rotating 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 reciprocating motion with a small angle in the gap where the gap assembly stops; a mating assembly for mating the clearance assembly and the reciprocation assembly.
Preferably, the clearance subassembly is fixed in including connecting the motor in the rotation wheel, motor output shaft with incomplete gear axis is connected fixedly, the meshing has first gear on the incomplete gear, a plurality of fixed plates in first gear axis, the fixed plate tip is the arc structure, incomplete gear axis fixedly connected with fixed plate normal running fit's contact plate, the breach has been seted up on the contact plate, the breach position with the latch position of incomplete gear corresponds, first gear axis fixedly connected with dwang, the dwang tip is equipped with the drive degree transform carousel pivoted coupling assembling.
Preferably, the connecting assembly comprises a telescopic rod fixedly connected with a middle shaft of the degree conversion turntable, the degree conversion turntable rotates in the rotating wheel, a rotating column is fixedly connected to the end of the telescopic rod, a movable groove in a shape of a circular truncated cone is formed in the end face of the rotating column, and the rotating rod penetrates through the movable groove to be in abutting-pressing fit with the rotating column.
Preferably, reciprocal subassembly include in the rotation takes turns interior rotation from the bull stick, be connected fixedly from bull stick top fixedly connected with and be fan-shaped shape's rotor plate, the post that rotates outer fixed surface be connected with rotor plate normal running fit's annular slab, two limiting plates of fixedly connected with on the bull stick are located two between the limiting plate the sliding tray has been seted up on the bull stick, be equipped with the drive in the sliding tray rotation subassembly that the bull stick reciprocated and rotated.
Preferably, the rotating assembly comprises a sleeve rotating in the rotating wheel, the end part of the sleeve is fixedly connected with a rotating rod which is distributed obliquely, the end part of the rotating rod extends 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 arranged on the first sliding groove in a sliding fit manner, and the end part of the sleeve rod is fixedly connected with a squeezing plate which is in press fit with the contact plate.
Preferably, the cooperation subassembly include in the commentaries on classics board of rotation in the rotation wheel, the second spout has been seted up on the commentaries on classics board, sliding fit has the slide bar in the second spout, the slide bar tip rotates and is connected with the head rod that is the slope and distributes, running fit has on the loop bar with head rod articulated first lantern ring, the commentaries on classics board other end rotates and is connected with the second connecting rod, the rotation post tip running fit have with the second lantern ring of second connecting rod articulated.
Preferably, the matching component further comprises a movable rod which rotates in the rotating wheel, the end of the movable rod is hung with an elastic pull rope connected with the rotating wheel, the fixed plate is fixedly connected with a fixed column which is in abutting-press fit with the movable rod, the side face of the movable rod is fixedly connected with a pressure rod which is obliquely distributed, and the pressure rod is rotatably connected with the slide rod.
An optometry method of an optometry device with high precision comprises the following steps;
s1, positioning, namely adjusting the adjusting arm and the rotating wheel to enable the eyes of a patient to correspond to the window holes;
s2, coarse adjustment is carried out, the cylindrical lens shaft is manually rotated, and the degree to which the degree conversion turntable rotates is enabled to be approximately close to the vision degree of the eyes of a patient;
s3, fine setting, through the start the motor, through incomplete gear engagement first gear revolve, and the dwang with under the support of rotation post is fixed, drive degree transform carousel rotates certain angle, works as incomplete gear breaks away from behind the first gear, from the reciprocal rotation of bull stick, the dwang with the rotation post breaks away from the contact, from the bull stick drive the slow reciprocal rotation is done to the rotation post, thereby is convenient for degree transform carousel reciprocal regulation, the patient of being convenient for is looked for the most suitable eyesight degree.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention carries out fine adjustment after manual coarse adjustment, starts the motor, drives the degree conversion turntable to rotate by a certain angle through the engagement of the incomplete gear and the first gear, and drives the degree conversion turntable to rotate under the abutting fixation of the rotating rod and the rotating column.
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 stably pressed conveniently, and the sleeve rod and the rotating column are ensured to operate stably.
Drawings
FIG. 1 is a schematic view 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 side view of the partial structure of FIG. 2;
FIG. 4 is a schematic exploded view of the motor of FIG. 3 with the motor removed;
FIG. 5 is a schematic side view of the partial structure of FIG. 4;
FIG. 6 is a schematic diagram of FIG. 5 with the structure broken away;
FIG. 7 is a schematic diagram of FIG. 6 with a partial structure broken away;
FIG. 8 is a schematic diagram of FIG. 7 with a partial structure broken away;
fig. 9 is a schematic diagram of fig. 8 with a partially disassembled structure.
In the figure: 1-an adjusting arm; 2-a running wheel; 3-a window aperture; 4-a cylindrical lens axis; 5-degree conversion turntable; 6-incomplete gear; 7-a rotating plate; 8-a gap assembly; 9-a motor; 10-a first gear; 11-a fixed plate; 12-a contact plate; 13-a notch; 14-rotating rods; 15-a connecting assembly; 16-a telescopic rod; 17-rotating the column; 18-a movable slot; 19-a reciprocating assembly; 20-a self-rotating rod; 22-an annular plate; 23-a limiting plate; 24-a sliding groove; 25-a rotating assembly; 26-a sleeve; 27-a rotating rod; 28-a loop bar; 29-a first runner; 30-a slide plate; 31-a stripper plate; 32-a mating component; 33-rotating the 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 rope; 42-fixed column; 43-compression bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-3, the high-precision optometry apparatus shown in the figure comprises an adjusting arm 1, wherein the adjusting arm 1 is movably connected with a rotating wheel with a plurality of adjusting wheels, a viewing window hole 3 and a cylindrical lens shaft 4 are arranged on the rotating wheel 2, and a degree conversion turntable 5 which is in rotating fit with the cylindrical lens shaft 4 is arranged on the rotating wheel 2; the device also comprises an incomplete gear 6 and a rotating plate 7; the clearance assembly 8, 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 turntable 5 to do reciprocating motion in a small angle in the 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.
Referring to fig. 3-4, a gap assembly 8 shown in the figure includes a motor 9 connected and fixed in a rotating wheel 2, an output shaft of the motor 9 is connected and fixed with a central shaft of an incomplete gear 6, a first gear 10 is engaged with the incomplete gear 6, the central shaft of the first gear 10 is fixedly connected with a plurality of fixing plates 11, the end portions of the fixing plates 11 are arc-shaped structures, the central shaft of the incomplete gear 6 is fixedly connected with a contact plate 12 in rotating fit with the fixing plates 11, a notch 13 is formed in the contact plate 12, the position of the notch 13 corresponds to the position of a latch of the incomplete gear 6, the central shaft of the first gear 10 is fixedly connected with a rotating rod 14, and the end portion of the rotating rod 14 is provided with a connecting assembly 15 for driving a degree conversion rotating disk 5 to rotate.
Referring to fig. 4-6, the connecting assembly 15 shown in the drawings includes a telescopic rod 16 connected and fixed to 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 an end of the telescopic rod 16, a movable groove 18 in the shape of a circular truncated cone is formed in an end face of the rotating column 17, and the rotating rod 14 penetrates through the movable groove 18 and is in press fit with the rotating column 17.
Referring to fig. 6-7, the illustrated reciprocating assembly 19 includes a rotation rod 20 rotating in the rotation wheel 2, a rotation plate 7 in a sector shape is fixedly connected to the top of the rotation rod 20, an annular plate 22 rotatably engaged with the rotation plate 7 is fixedly connected to the outer surface of the rotation column 17, two limiting plates 23 are fixedly connected to the rotation rod 20, a sliding groove 24 is formed in the rotation rod 20 between the two limiting plates 23, and a rotating assembly 25 driving the rotation rod 20 to rotate reciprocally is disposed in the sliding groove 24.
Referring to fig. 8-9, the rotating assembly 25 shown in the figure includes a sleeve 26 rotating in the rotating wheel 2, the end of the sleeve 26 is fixedly connected with rotating rods 27 distributed obliquely, the end of the rotating rod 27 extends into the sliding groove 24, the end 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 connected and fixed with the inner wall of the sleeve 26 is slidably fitted on the first sliding groove 29, and a pressing plate 31 in press fit with the contact plate 12 is fixedly connected to the end of the sleeve rod 28.
An optometry method of an optometry device with high precision comprises the following steps;
s1, positioning, namely adjusting an adjusting arm 1 and a rotating wheel 2 to enable the eyes of a patient to correspond to an eye window 3;
s2, coarse adjustment is carried out, the cylindrical lens shaft 4 is manually rotated, and the degree to which the degree conversion turntable 5 rotates is enabled to be approximately close to the vision degree of the eyes of a patient;
s3, fine adjustment is carried out, the motor 9 is started, the incomplete gear 6 is meshed with the first gear 10 to rotate, the rotating rod 14 and the rotating column 17 are abutted and fixed to drive the degree conversion rotating disc 5 to rotate for a certain angle, after the incomplete gear 6 is separated from the first gear 10, the rotating rod 20 rotates in a reciprocating mode, the rotating rod 14 is separated from the rotating column 17 and the rotating rod 20 drives the rotating column 17 to rotate slowly in a reciprocating mode, therefore, the degree conversion rotating disc 5 can be adjusted in a reciprocating mode conveniently, and a patient can find the most appropriate vision degree conveniently.
In this embodiment, the motor 9 rotates to drive the incomplete gear 6 to continuously rotate, the incomplete gear 6 is meshed 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 (with the cross section being an 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 rotating disc 5 rotates, and after the degree conversion rotating disc 5 rotates by a certain angle, the incomplete gear 6 is disengaged from the first gear 10;
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 assembly 32, the telescopic rod 16 contracts, the annular plate 22 is in press contact with the rotating plate 7, meanwhile, the extrusion plate 31 moves and presses against the contact plate 12 (the sliding plate 30 slides in the first sliding chute 29), the contact plate 12 is driven to rotate by the incomplete gear 6 which continuously rotates, so that the contact plate 12 drives the extrusion plate 31 to rotate, the self-rotating sleeve rod 28 enables the sleeve 26 to rotate under the action of the sliding plate 30 and the first sliding chute 29, the rotating rod 27 rotates in a circular manner, the self-rotating rod 20 and the rotating plate 7 rotate in a reciprocating manner under the action of the sliding chute 24 and the limiting plate 23, and the rotating plate 7 rotates through the annular plate 22 which is in contact with the self-rotating column 17, so that the rotating column 17 rotates in a reciprocating manner, so that the degree conversion turntable 5 rotates slowly, and the vision of a patient can be conveniently aligned in a reciprocating manner to the most suitable degree;
wherein, dwang 14 supports the pressure contact with the rotation post 17, under the effect of frictional force, makes dwang 14 drive rotation post 17 and rotates, and annular plate 22 supports the pressure contact with rotor plate 7, and under the effect of frictional force, the second toothed plate drives rotation post 17 rotation, and stripper plate 31 and contact plate 12 support the pressure contact, and under the effect of frictional force, contact plate 12 drives loop bar 28 and rotates, and the cavity in the rotating wheel 2 is convenient for other structures to move.
Example two
In the second embodiment, referring to fig. 7-9, the engaging assembly 32 shown in the figure includes a rotating plate 33 rotating in the rotating wheel 2, the rotating plate 33 is provided with a second sliding slot 34, the second sliding slot 34 is slidably engaged with a sliding rod 35, the end of the sliding rod 35 is rotatably connected with a first connecting rod 36 in an inclined distribution, the sleeve rod 28 is rotatably engaged with a first collar 37 hinged to the first connecting rod 36, the other end of the rotating plate 33 is rotatably connected with a second connecting rod 38, and the end of the rotating column 17 is rotatably engaged with a second collar 39 hinged to the second connecting rod 38.
In this embodiment, after the incomplete gear 6 and the first gear 10 are disengaged, the rotating plate 33 rotates, the sliding rod 35 moves downward, the sleeve 28 moves along the sleeve 26 under the action of the inclined first connecting rod 36, so that the pressing plate 31 presses against the contact plate 12, the contact plate 12 rotates to drive the pressing plate 31 to rotate, and the second connecting rod 38 moves the rotating column 17 away from the rotating rod 14 while the rotating plate 33 rotates, so that the annular plate 22 presses against the rotating plate 7, and the rotating plate 7 drives the rotating column 17 to rotate back and forth.
EXAMPLE III
In the third embodiment, referring to fig. 7-8, the engaging assembly 32 further includes a movable rod 40 rotating in the rotating wheel 2, an elastic pull rope 41 connected to the rotating wheel 2 is hung at an 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 is fixedly connected to a side surface of the movable rod 40, and the pressing rod 43 is rotatably connected to the sliding rod 35.
In this embodiment, after the incomplete gear 6 and the first gear 10 are disengaged, the fixed plate 11 presses against the contact plate 12, and the fixed post 42 is located at the lowest position, so as to press the movable rod 40, and the pressing rod 43 moves downward, so as to drive the sliding rod 35 to move downward, and under the action of the second sliding slot 34, the rotating plate 33 rotates.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A high accuracy optometric instrument comprising:
the device comprises an adjusting arm (1), wherein a rotating wheel (2) with a plurality of adjusting wheels is movably connected to the adjusting arm (1), a window hole (3) and a cylindrical lens shaft (4) are arranged on the rotating wheel (2), and a degree conversion turntable (5) which is in rotating fit with the cylindrical lens shaft (4) is arranged on the rotating wheel (2);
it is characterized by also 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 turntable (5) to do reciprocating motion with a small angle in the gap where the gap assembly (8) stops;
a mating assembly (32), the mating assembly (32) for mating the clearance assembly (8) and the reciprocation assembly (19).
2. A high accuracy optometric instrument according to claim 1, wherein: clearance subassembly (8) are fixed in including connecting motor (9) in the rotation wheel (2), motor (9) output shaft with incomplete gear (6) axis connection is fixed, meshing has first gear (10) on incomplete gear (6), a plurality of fixed plates (11) of first gear (10) axis fixedly connected with, fixed plate (11) tip is the arc structure, incomplete gear (6) axis fixedly connected with fixed plate (11) normal running fit's contact plate (12), breach (13) have been seted up on contact plate (12), breach (13) position with the latch position of incomplete gear (6) corresponds, first gear (10) axis fixedly connected with dwang (14), dwang (14) tip is equipped with the drive degree transform carousel (5) pivoted coupling assembling (15).
3. A high accuracy optometric instrument according to claim 2, wherein: coupling assembling (15) include with degree transform carousel (5) axis connection fixed telescopic link (16), degree transform carousel (5) in rotation in rotating wheel (2), telescopic link (16) tip fixedly connected with rotates post (17), it offers movable groove (18) that is the round platform shape to rotate post (17) terminal surface, dwang (14) penetrate movable groove (18) with rotate post (17) and support the press fit.
4. A high accuracy optometric instrument according to claim 3, wherein: reciprocal subassembly (19) include in the rotation is from bull stick (20) of rotation in the rotation wheel (2), it is fixed to be connected from bull stick (20) top and rotor plate (7) that are fan-shaped shape, rotate post (17) outer fixed surface be connected with rotor plate (7) normal running fit's annular slab (22), from two limiting plate (23) of fixedly connected with on bull stick (20), be located two between limiting plate (23) sliding tray (24) have been seted up on bull stick (20), be equipped with the drive in sliding tray (24) from bull stick (20) reciprocal pivoted runner subassembly (25).
5. A high accuracy optometric instrument according to claim 4, wherein: the rotating assembly (25) comprises a rotating sleeve (26) rotating in the rotating wheel (2), the end part of the rotating sleeve (26) is fixedly connected with a rotating rod (27) which is obliquely distributed, the end part of the rotating rod (27) extends into the sliding groove (24), the end part of the rotating rod (27) is positioned on a central axis of the rotating 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) which is fixedly connected with the inner wall of the sleeve (26) is slidably matched on the first sliding groove (29), and the end part of the sleeve rod (28) is fixedly connected with a pressing plate (31) which is pressed and matched with the contact plate (12).
6. A high accuracy optometric instrument according to claim 5, wherein: cooperation subassembly (32) include in the commentaries on classics board (33) of rotation in the rotation wheel (2), second spout (34) have been seted up on commentaries on classics board (33), sliding fit has slide bar (35) in second spout (34), slide bar (35) tip is rotated and is connected with head rod (36) that are the slope and distributes, rotating fit has on loop bar (28) with head rod (36) articulated first lantern ring (37), commentaries on classics board (33) other end is rotated and is connected with second connecting rod (38), rotate post (17) tip rotating fit have with second connecting rod (38) articulated second lantern ring (39).
7. A high accuracy optometric instrument according to claim 6, wherein: the matching component (32) further comprises 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 (21), a pressing rod (43) which is obliquely distributed is fixedly connected to the side face of the movable rod (40), and the pressing rod (43) is rotatably connected with the sliding rod (35).
8. A method of optometric measurement of a high accuracy optometric instrument according to any one of claims 1 to 7, comprising the steps of;
s1, positioning, namely adjusting the adjusting arm (1) and the rotating wheel (2) to enable the eyes of a patient to correspond to the window holes (3);
s2, coarse adjustment is carried out, the cylindrical lens shaft (4) is manually rotated, and the degree to which the degree conversion turntable (5) rotates is approximately close to the vision degree of the eyes of a patient;
s3, fine setting, through the start motor (9), through incomplete gear (6) meshing first gear (10) rotate, and dwang (14) with the support of rotating post (17) is pressed under fixed, drives degree transform carousel (5) rotates certain angle, works as incomplete gear (6) break away from behind first gear (10), from bull stick (20) reciprocal rotation, dwang (14) with rotating post (17) break away from the contact, from bull stick (20) drive slow reciprocal rotation is done to rotating post (17), thereby is convenient for degree transform carousel (5) reciprocating motion is convenient for the patient finds the most suitable eyesight degree.
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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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118210127A (en) * | 2024-04-22 | 2024-06-18 | 新启航半导体有限公司 | Optical automatic focusing device |
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