CN108957790B - Glasses for detecting myopia degrees and method for detecting myopia degrees - Google Patents
Glasses for detecting myopia degrees and method for detecting myopia degrees Download PDFInfo
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- CN108957790B CN108957790B CN201810911795.XA CN201810911795A CN108957790B CN 108957790 B CN108957790 B CN 108957790B CN 201810911795 A CN201810911795 A CN 201810911795A CN 108957790 B CN108957790 B CN 108957790B
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
- G02C7/081—Ophthalmic lenses with variable focal length
- G02C7/085—Fluid-filled lenses, e.g. electro-wetting lenses
Abstract
The invention discloses glasses for detecting myopia degrees and a method for detecting the myopia degrees, and belongs to the technical field of vision detection The degree detection can be completed by one person, the configuration requirement of the current myopia glasses is met, and the configuration cost is reduced.
Description
Technical Field
The invention relates to the technical field of vision detection, in particular to glasses for detecting myopia degrees and a method for detecting the myopia degrees.
Background
Nowadays, myopia crowds are more and more, and for satisfying daily life needs, the glasses with different degrees are provided, and due to overuse of eyes in people daily life, the myopia degrees still can increase, and the glasses are provided again after repeated optometry. At present, the common configuration method of the glasses is that the lenses are continuously replaced, then the visual chart is seen to obtain the lenses with the most suitable degree, then the proper glasses are prepared according to the degree, and a large amount of time is wasted in the process of lens configuration; in addition, the existing method for detecting the myopic degree needs to manufacture the detected lens in advance, so that the operation is inconvenient, time and labor are wasted, and the manufacturing of the lens consumes materials and cost.
Disclosure of Invention
In order to solve the technical problems, the invention provides glasses for detecting the degree of myopia, which mainly solves the problems of low efficiency and high cost of the existing method for detecting the degree of myopia and aims to design glasses which are convenient and quick to detect the degree of myopia and low in detection cost, and can be used for detecting the degree of myopia by one person, so that the glasses meet the configuration requirements of the existing glasses for detecting the degree of myopia and the configuration cost is reduced.
In order to achieve the purpose, the technical scheme adopted by the invention for solving the technical problems is as follows: detect glasses of near-sighted degree, the symmetry sets up, its characterized in that, including the first mirror body, the second mirror body, the transparent gasbag of elasticity and mirror holder, sliding connection forms around the first mirror body and the second mirror body and holds the cavity, it sets up in the cavity to hold the transparent gasbag of elasticity, the both sides of the transparent gasbag of elasticity bond with the first mirror body, the second mirror body respectively, be provided with in the mirror holder to pour into the liquid transmission mechanism that annotates focusing liquid and adjust and hold the cavity volume in the transparent gasbag of elasticity.
Furthermore, the first mirror body and the second mirror body are both provided with concave lenses, a guide frame body is fixed on the first mirror body, and the guide frame body is connected with the second mirror body in a sliding mode.
Furthermore, a nose bridge frame is connected between the two guide frame bodies through a double-end screw.
Furthermore, the two sides of the second mirror body are respectively connected with a bar-shaped block, and a guide groove in sliding connection with the bar-shaped block is arranged on the inner wall of the guide frame body.
Furthermore, the mirror holder is of a cavity structure, the liquid injection transmission mechanism is arranged in the cavity of the mirror holder and comprises an injector, a gear and rack transmission component and a knob, wherein the gear and rack transmission component enables focusing liquid in the injector to enter the elastic transparent air bag or enables the focusing liquid in the elastic transparent air bag to enter the injector, and the knob drives the gear and rack transmission component to act.
Further, the injector comprises an injection tube body for containing the focusing liquid and a piston push rod which is connected in the injection tube body in a sliding way; the gear rack transmission component comprises a gear fixed with the knob through a connecting shaft and a rack meshed with the gear; and the piston push rod is fixedly connected with the end part of the rack.
Furthermore, a guide rail in guide sliding fit with the rack is arranged in the mirror bracket, and a guide strip in guide sliding fit with the rack is arranged on the guide rail.
Further, the knob sets up the outside at the mirror holder, the knob evenly is provided with the angle sign along its circumferencial direction, still be provided with the positioning mechanism with knob rigidity on every angle sign, positioning mechanism includes first locating hole, second locating hole and positioning bolt, first locating hole evenly is provided with a plurality ofly and every first locating hole is located along the circumferencial direction of knob on the angle sign, the mirror holder outside be provided with the second locating hole that first locating hole is relative, set up in first locating hole and the second locating hole positioning bolt.
Furthermore, be provided with the coupling hose to interior injection focusing liquid on the transparent gasbag of elasticity, be connected with the stereoplasm connecting pipe between the outside of guide frame body and the mirror holder, coupling hose stretch out behind the stereoplasm connecting pipe with the syringe links to each other.
A method for detecting the degree of myopia, which applies the glasses for detecting the degree of myopia, is characterized in that: the method comprises the following steps:
1) rotating the knob by a corresponding angle, driving the focusing liquid in the injector to enter the elastic transparent air bag under the driving of the gear rack transmission part, increasing the volume of the elastic transparent air bag, increasing the volume of the accommodating cavity, and fixing the position of the knob through a positioning bolt;
2) measuring the integral focal length of the first lens body, the second lens body and the elastic transparent air bag at the moment, calculating the equivalent eyeglass degree, and recording the equivalent eyeglass degree corresponding to the corresponding angle of the rotary knob;
3) continuing to rotate the knob by the same angle, and repeating the step 1) and the step 2) to obtain a comparison table containing a plurality of groups of knob rotation angles and corresponding equivalent eyeglass degrees;
4) the person of examining sees the visual acuity chart after taking the glasses, the operation knob makes the focusing liquid in the syringe get into elasticity transparent gasbag or make the focusing liquid in the elasticity transparent gasbag get into the syringe in, and then adjust the distance between the first mirror body and the second mirror body, do not feel under the prerequisite of sour bloating at the person's eyes of examining, when the typeface on the visual acuity chart is the clearest, stop the operation knob, and fix the position of knob through positioning bolt, look over the rotatory angle of knob this moment, then the contrast table of contrast step 3) reachs equivalent glasses degree.
The invention has the beneficial effects that:
1. the glasses for detecting the degree of myopia takes the first lens body, the second lens body and the elastic transparent air bag filled with the focusing liquid as an equivalent concave lens, the volume of the elastic transparent air bag is increased or reduced through the movement of the liquid injection transmission mechanism, thereby changing the distance between the first lens body and the second lens body which are bonded with the elastic transparent air bag, measuring the power of the equivalent concave lens at different positions of the liquid injection transmission mechanism and recording the power, according to the recorded data, the examiner wears the glasses, and the liquid injection transmission mechanism moves to increase or reduce the volume of the elastic transparent air bag by the same principle so as to adjust the distance between the first mirror body and the second mirror body, in the process of the movement of the injection transmission mechanism, on the premise that the eyes of a detector do not feel acid swelling, when the characters on the visual chart are most clear, the position of the liquid injection transmission mechanism is observed, and the number of the required glasses can be obtained by contrasting the recorded data. The whole operation process is convenient and fast, the detection cost is low, the degree detection can be completed by one person by a detector, the configuration requirement of the existing myopia glasses is met, and the configuration cost is reduced.
2. The liquid injection transmission mechanism comprises an injector and a gear rack transmission component, wherein the gear rack transmission component is driven to act through a knob on the outer side of a rotary lens frame, a rack in the gear rack transmission component moves along a guide rail, so that a piston push rod in the injector is driven to stretch, focusing liquid in the injector enters an elastic transparent air bag or the focusing liquid in the elastic transparent air bag enters the injector, the volume of the elastic transparent air bag is changed, and the distance between a first lens body and a second lens body which are bonded with the elastic transparent air bag is changed. The adjusting mode can continuously adjust and change the degree of the glasses according to the needs, the adjustment is convenient, and the determination of the degree of the glasses is more intuitive and quicker.
3. Wherein, the outside of knob still is provided with the positioning mechanism with the rigidity of knob, this positioning mechanism includes the first locating hole that the circumferencial direction of knob evenly set up and the second locating hole that the mirror holder outside is relative with first locating hole, and first locating hole is located the angle sign of knob, after to a certain angle through the rotating knob, to the rigidity that relative first locating hole and second locating hole in-hole installation positioning bolt made the knob, thereby liquid drive mechanism's position has been annotated in the restriction, annotate liquid drive mechanism action and make the measurement inaccurate when having prevented the operation from finishing, this kind of positioning mechanism has improved the measuring accuracy of number of degrees.
In conclusion, the first lens body, the second lens body and the elastic transparent air bag filled with the focusing liquid are taken as an equivalent concave lens, the distance between the first lens body and the second lens body is adjusted by changing the capacity of the focusing liquid in the elastic transparent air bag, the number of degrees of the needed glasses is determined according to the position of the liquid injection transmission mechanism, the degree detection is accurate and continuous, the operation process is convenient and quick, the detection cost is low, a detector can complete the degree detection by one person, the configuration requirement of the current myopia glasses is met, and the configuration cost is reduced.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
the labels in the above figures are: 1. the injection syringe comprises a first mirror body, a second mirror body, a strip-shaped block 21, an elastic transparent air bag 3, an elastic transparent air bag 4, a mirror frame 41, a guide rail 411, a guide strip 5, an accommodating cavity 6, an injection transmission mechanism 61, an injector 611, an injection tube body 612, a piston push rod 62, a gear and rack transmission component 621, a gear 622, a rack bar 63, a knob 631, an angle mark 7, a guide frame body 71, a guide groove 71, a nose bridge frame 8, a positioning mechanism 9, a positioning mechanism 91, a first positioning hole 92, a second positioning hole 92, a positioning bolt 93, a connecting hose 10 and a hard connecting pipe 11.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
The specific implementation scheme of the invention is as follows: as shown in fig. 1 to 3, a pair of glasses for detecting myopia degree, which are symmetrically arranged, comprises a first lens body 1, a second lens body 2, an elastic transparent air bag 3 and a lens frame 4, which are symmetrically arranged, wherein the first lens body 1 and the second lens body 2 are connected in a front-back sliding manner to form a containing cavity 5, the elastic transparent air bag 3 is arranged in the containing cavity 5, two sides of the elastic transparent air bag 3 are respectively bonded with the first lens body 1 and the second lens body 2, the first lens body 1 and the second lens body 2 can be made of glass materials, the elastic transparent air bag 3 can be made of elastic rubber materials, the first lens body 1, the second lens body 2 and the elastic transparent air bag 3 can be bonded through neoprene adhesive or rubber resin adhesive corresponding to the elastic rubber materials, the main metal oxide in the neoprene adhesive is magnesium oxide, but zinc oxide is not contained, so that the adhesive is transparent and not layered, make first mirror body 1, form a transparent whole between second mirror body 2 and the transparent gasbag of elasticity 3, be convenient for the later stage to the focus of this glasses and the accurate measurement of the near-sighted degree of the person who detects, and when the volume increase of the transparent gasbag of elasticity 3 or when shrinking, the adjustable volume size that holds cavity 5, thereby adjust the distance between first mirror body 1 and the second mirror body 2, be provided with in the mirror holder 4 and inject the focusing liquid and adjust the notes liquid drive mechanism 6 that holds cavity 5 volume into to the transparent gasbag of elasticity 3, as shown in figure 2, all be provided with in two mirror holders 4 and annotate liquid drive mechanism 6, can adjust the degree of the mirror body of glasses both sides alone respectively, satisfy the different condition of two eyes degree, make the degree detect more and press close to actual conditions, it is more practical to make it. The glasses for detecting the myopia degree take the first lens body 1, the second lens body 2 and the elastic transparent air bag 3 filled with the focusing liquid as an equivalent concave lens, the movement of the liquid injection transmission mechanism 6 enables the volume of the elastic transparent air bag 3 to be increased or reduced, so that the distance between the first lens body 1 and the second lens body 2 which are bonded with the elastic transparent air bag 3 is changed, the degree of the equivalent concave lens at different positions of the liquid injection transmission mechanism 6 is measured and recorded, according to the recorded data, a detector wears the glasses by the same principle, the movement of the liquid injection transmission mechanism 6 enables the volume of the elastic transparent air bag 3 to be increased or reduced, so as to adjust the distance between the first lens body 1 and the second lens body 2, so that in the movement process of the liquid injection transmission mechanism 6, under the premise that the eyes of the detector do not feel acid swelling, when the font on a chart is most clear, the position of the transmission mechanism 6 at the moment is observed, the number of required glasses can be obtained by comparing the recorded data. The whole operation process is convenient and fast, the detection cost is low, the degree detection can be completed by one person by a detector, the configuration requirement of the existing myopia glasses is met, and the configuration cost is reduced.
Specifically, the first lens body 1 and the second lens body 2 are both provided with concave lenses, so that the first lens body 1, the second lens body 2 and the elastic transparent air bag 3 filled with focusing liquid can be equivalent to a concave lens, which is equivalent to a piece of myopia lens; the first mirror body 1 is fixed with a guide frame body 7, the guide frame body 7 is connected with the second mirror body 2 in a sliding manner, the specific structure is that strip-shaped blocks 21 are respectively connected to two sides of the second mirror body 2, a guide groove 71 connected with the strip-shaped blocks 21 in a sliding manner is arranged on the inner wall of the guide frame body 7, the guide frame body 7 enables a containing cavity 5 to be formed between the first mirror body 1 and the second mirror body 2, the size of the containing cavity 5 can be stably changed by the strip-shaped blocks 21 sliding along the guide groove 71, in addition, sliding grooves can also be arranged on the upper surface and the lower surface of the inner side of the guide frame body 7, clamping protrusions matched with the sliding grooves in a sliding manner are arranged on the upper edge and the lower edge of the second mirror body 2, the second mirror body 2 can stably slide along the guide frame body 7, and the whole sliding.
Specifically, be connected with nose bridge frame 8 through double-threaded screw between two guide frame bodies 7, this double-threaded screw can set into plastic products, and the both sides of nose bridge frame 8 set up respectively with double-threaded screw threaded connection's screw hole, can adjust the length of double-threaded screw according to the people of different face types, make two guide frame body 7's middle part and two eyes relative, make the person of examining person wear more comfortablely, make the detection number of degrees more accurate.
Specifically, the lens frame 4 is provided with a cavity structure, the injection transmission mechanism 6 is provided in the cavity of the lens frame 4, the injection transmission mechanism 6 comprises an injector 61 and a knob 63 which enables focusing liquid in the injector 61 to enter the elastic transparent airbag 3 or enables the focusing liquid in the elastic transparent airbag 3 to enter a gear rack transmission component 62 in the injector 61 and drives the gear rack transmission component 62 to act, the gear rack transmission component 62 drives the injector 61 to act by rotating the knob 63, so that the focusing liquid in the injector 61 enters the elastic transparent airbag 3 or enables the focusing liquid in the elastic transparent airbag 3 to enter the injector 61, and thus the distance between the first lens 1 and the second lens 2 is changed; specifically, the injector 61 includes an injection tube body 611 for containing the focusing liquid and a piston push rod 612 slidably connected to the injection tube body 611, the rack-and-pinion transmission part 62 includes a gear 621 fixed to the knob 63 via a connection shaft and a rack 622 engaged with the gear 621, the piston push rod 612 is fixedly connected to an end of the rack 622, a guide rail 41 slidably engaged with the rack 622 is provided in the lens holder 4, a guide bar 411 slidably engaged with the rack 622 is provided on the guide rail 41, a dovetail groove may be provided at a bottom end of the rack 622, and the guide bar 411 is provided with a bar-shaped block having a trapezoidal cross section engaged with the dovetail groove, so that the rack 622 stably moves along the guide rail 41 without being separated from the guide rail 41.
The working principle of the liquid injection transmission mechanism 6 is that the gear rack transmission component 62 is driven to act by rotating the knob 63 outside the lens frame 4, the rack 622 in the gear rack transmission component 62 moves along the guide rail 41, so as to drive the piston push rod 612 in the injector 61 to stretch and retract, so that the focusing liquid in the injector 61 enters the elastic transparent air bag 3 or the focusing liquid in the elastic transparent air bag 3 enters the injector 61, thereby changing the volume of the elastic transparent air bag 3, and further changing the distance between the first lens body 1 and the second lens body 2 which are bonded with the elastic transparent air bag 3. The adjusting mode can continuously adjust and change the degree of the glasses according to the needs, the adjustment is convenient, and the determination of the degree of the glasses is more intuitive and quicker.
Specifically, the knob 63 is disposed outside the mirror bracket 4 for easy adjustment, the knob 63 is uniformly provided with angle marks 631 along a circumferential direction thereof, the angle marks 631 can mark angles clockwise or counterclockwise, at an initial position, 0 ° on the angle marks 631 can be located directly above a numerical value for easy identification of a rotated angle value during rotation, each angle mark 631 is further provided with a positioning mechanism 9 for fixing the position of the knob 63, the positioning mechanism 9 includes a first positioning hole 91, a second positioning hole 92 and a positioning bolt 93, the first positioning hole 91 is uniformly provided with a plurality of first positioning holes 91 along the circumferential direction of the knob 63, each first positioning hole 91 is located on the angle mark 631, the mirror bracket 4 is provided with a second positioning hole 92 opposite to the first positioning hole 91 outside, the first positioning hole 91 and the second positioning hole 92 are provided with positioning bolts 93 therein, wherein the first positioning hole 91 and the second positioning hole 92 are both provided with threaded holes matched with the positioning bolts 93, before the knob 63 is screwed, the positioning bolt 93 is separated from the second positioning hole 92, after the knob 63 is screwed to a certain angle, the positioning bolt 93 at the corresponding position is screwed into the second positioning hole 92 through the first positioning hole 91 to fix the position of the knob 63, so that the position of the liquid injection transmission mechanism 6 is limited, the phenomenon that the measurement is inaccurate due to the action of the liquid injection transmission mechanism 6 when the operation is finished is prevented, and the accuracy of the degree measurement is improved by the positioning mechanism 9.
Specifically, be provided with the coupling hose 10 to interior injection focusing liquid on the transparent gasbag of elasticity 3, this coupling hose 10 and the transparent gasbag of elasticity 3 integrated into one piece, be connected with stereoplasm connecting pipe 11 between the outside of guide frame body 7 and the mirror holder 4, make the connection structure of whole glasses more stable, coupling hose 10 stretches out and links to each other with syringe 61 behind the stereoplasm connecting pipe 11, this syringe 61 also can set up to plastic products, coupling hose 10 and the sealed continuous of mode that connects of syringe 61 accessible sticky cup jointing.
A method for detecting the myopia degree by using the glasses for detecting the myopia degree comprises the following steps:
1) the knob 63 is rotated by a corresponding angle, the focusing liquid in the injector 61 enters the elastic transparent air bag 3 under the driving of the gear rack transmission part 62, the volume of the elastic transparent air bag 3 is increased, the volume of the accommodating cavity 5 is increased, and then the position of the knob 63 is fixed through the positioning bolt 93. The method comprises the following specific steps: in an initial state, the first mirror body 1 and the second mirror body 2 are abutted, and the zero scale of the knob 63 is vertically above, at this time, two sides of the elastic transparent airbag 3 are tightly attached to the first mirror body 1 and the second mirror body 2, then the knob 63 is rotated by a corresponding angle as required, the gear 621 is rotated, the rack 622 meshed with the gear 621 moves along the guide rail 41 in the mirror frame 4, so as to drive the piston push rod 612 in the injector 61 to extend out, so that the focusing liquid in the injector 61 enters the elastic transparent airbag 3, so as to increase the volume of the elastic transparent airbag 3, that is, the elastic transparent airbag 3 with increased volume pushes the second mirror body 2, so as to drive the second mirror body 2 to move towards the outer side of the frame body 7, and then the positioning bolt 93 is screwed into the second positioning hole 92 through the first positioning hole 91, so as to fix the position of the knob 63.
2) And measuring the integral focal length of the first lens body 1, the second lens body 2 and the elastic transparent air bag 3 at the moment, calculating the equivalent eyeglass degree, and recording the equivalent eyeglass degree corresponding to the corresponding angle of the rotation of the knob 63. The specific operation is as follows: measuring focal length according to the concave lens imaging principle, namely, vertically placing the whole body consisting of the first mirror body 1, the second mirror body 2 and the elastic transparent air bag 3, then vertically placing a white board at the right back part and the right left side (right side) of the second mirror body 2 respectively, wherein the included angle of the two white boards is 90 degrees, and irradiating two horizontal parallel light beams to the positions of the upper side and the lower side of the central point of the first mirror body 1 at equal intervals by using two same monochromatic laser pens; then two irradiation points irradiated by laser can appear on the whiteboard at the right back, two refraction points of two beams of laser can appear on the second mirror body 2, the two irradiation points and the two refraction points are vertically projected onto the whiteboard at the right left side (right side), and marking points are made; two mark points above (an irradiation point and a refraction point above the central position of the second mirror body 2) and two mark points below (an irradiation point and a refraction point below the central position of the second mirror body 2) are respectively connected and extended on the white board on the right left side (right side), two extension lines are intersected at one point, and the distance between the intersection point and the central position between the first mirror body 1 and the second mirror body 2 is the integral focal length; then according to the relation between the focal length and the degree of the glasses: the power is 100/focal length, the equivalent power of the spectacle lens in this state is calculated, and the rotation angle of the knob 63 is recorded.
3) Continuing to rotate the knob 63 by the same angle, and repeating the steps 1) and 2) to obtain a comparison table containing a plurality of groups of rotation angles of the knob 63 and equivalent eyeglass degrees corresponding to the rotation angles;
4) the inspector sees the visual acuity chart after wearing the glasses, the operation knob 63 makes the focusing liquid in the injector 61 enter the elastic transparent air bag 3 or makes the focusing liquid in the elastic transparent air bag 3 enter the injector 61, and then adjusts the distance between the first lens body 1 and the second lens body 2, under the premise that the inspector eyes do not feel the acid swelling, when the fonts on the visual acuity chart are most clear, the operation knob 63 is stopped, the position of the knob 63 is fixed through the positioning bolt 93, the rotating angle of the knob 63 is checked at the moment, and then the equivalent glasses degree is obtained by contrasting the comparison chart of the step 3).
In conclusion, the first lens body, the second lens body and the elastic transparent air bag filled with the focusing liquid are taken as an equivalent concave lens, the distance between the first lens body and the second lens body is adjusted by changing the capacity of the focusing liquid in the elastic transparent air bag, the number of degrees of the needed glasses is determined according to the position of the liquid injection transmission mechanism, the degree detection is accurate and continuous, the operation process is convenient and quick, the detection cost is low, a detector can complete the degree detection by one person, the configuration requirement of the current myopia glasses is met, and the configuration cost is reduced.
While the foregoing is directed to the principles of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (6)
1. Glasses for detecting myopia degrees are symmetrically arranged and are characterized by comprising a first glasses body (1), a second glasses body (2), an elastic transparent air bag (3) and a glasses frame (4), the first lens body (1) and the second lens body (2) are both set as concave lenses, a guide frame body (7) is fixed on the first lens body (1), the guide frame body (7) is connected with the second mirror body (2) in a sliding way, the first mirror body (1) and the second mirror body (2) are connected in a sliding way from front to back to form an accommodating cavity (5), the accommodating cavity (5) is internally provided with the elastic transparent air bag (3), two sides of the elastic transparent air bag (3) are respectively bonded with the first mirror body (1) and the second mirror body (2), a liquid injection transmission mechanism (6) which injects the focusing liquid into the elastic transparent air bag (3) and adjusts the volume of the accommodating cavity (5) is arranged in the lens bracket (4); the liquid injection driving mechanism (6) comprises an injector (61), a gear and rack transmission component (62) and a knob (63), wherein the gear and rack transmission component (62) enables focusing liquid in the injector (61) to enter the elastic transparent air bag (3) or enables the focusing liquid in the elastic transparent air bag (3) to enter the injector (61), and the knob (63) drives the gear and rack transmission component (62) to act; the injector (61) comprises an injection tube body (611) containing a focusing liquid and a piston push rod (612) connected with the injection tube body (611) in a sliding mode, the gear-rack transmission component (62) comprises a gear (621) fixed with the knob (63) through a connecting shaft and a rack (622) meshed with the gear (621), and the piston push rod (612) is fixedly connected with the end portion of the rack (622); knob (63) sets up the outside at mirror holder (4), knob (63) evenly are provided with angle sign (631) along its circumferencial direction, still are provided with on every angle sign with knob (63) fixed position's positioning mechanism (9), positioning mechanism (9) include first locating hole (91), second locating hole (92) and positioning bolt (93), first locating hole (91) evenly are provided with a plurality of and every first locating hole (91) along the circumferencial direction of knob (63) and are located on angle sign (631), the mirror holder (4) outside be provided with first locating hole (91) relative second locating hole (92), set up in first locating hole (91) and second locating hole (92) positioning bolt (93).
2. Glasses for detecting the degree of myopia according to claim 1, characterized in that: a nose bridge frame (8) is connected between the two guide frame bodies (7) through a double-end screw.
3. Glasses for detecting the degree of myopia according to claim 2, characterized in that: two sides of the second mirror body (2) are respectively connected with a bar-shaped block (21), and a guide groove (71) which is connected with the bar-shaped block (21) in a sliding manner is arranged on the inner wall of the guide frame body (7).
4. Glasses for detecting the degree of myopia according to claim 1, characterized in that: the glasses frame (4) is internally provided with a guide rail (41) which is in guide sliding fit with the rack (622), and the guide rail (41) is provided with a guide strip (411) which is in sliding fit with the rack (622).
5. Glasses for detecting the degree of myopia according to claim 1, characterized in that: be provided with connecting tube (10) to interior injection focusing liquid on elasticity transparent gasbag (3), be connected with stereoplasm connecting pipe (11) between the outside of guide frame body (7) and mirror holder (4), connecting tube (10) stretch out behind stereoplasm connecting pipe (11) with syringe (61) link to each other.
6. A method for detecting myopia degree by using the glasses for detecting myopia degree according to any one of claims 1-5, wherein: the method comprises the following steps:
1) rotating the knob (63) by a corresponding angle, driving the focusing liquid in the injector (61) to enter the elastic transparent air bag (3) by the gear and rack transmission part (62), increasing the volume of the elastic transparent air bag (3), increasing the volume of the accommodating cavity (5), and fixing the position of the knob (63) by a positioning bolt (93);
2) measuring the integral focal length of the first lens body (1), the second lens body (2) and the elastic transparent air bag (3), calculating the equivalent eyeglass degree, and recording the equivalent eyeglass degree corresponding to the corresponding angle of the rotation of the knob (63);
3) continuing to rotate the knob (63) by the same angle, and repeating the step 1) and the step 2) to obtain a comparison table containing a plurality of groups of rotation angles of the knob (63) and corresponding equivalent eyeglass degrees;
4) the tester looks at the visual acuity test chart after wearing the glasses, the operation knob (63) enables focusing liquid in the injector (61) to enter the elastic transparent air bag (3) or enables focusing liquid in the elastic transparent air bag (3) to enter the injector (61), and then the distance between the first lens body (1) and the second lens body (2) is adjusted, on the premise that the eyes of the tester do not feel acid swelling, when fonts on the visual acuity test chart are clearest, the operation knob (63) is stopped, the position of the knob (63) is fixed through the positioning bolt (93), the rotating angle of the knob (63) is checked at the moment, and then the equivalent glasses degree is obtained by contrasting the comparison chart in the step 3).
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| CN201810911795.XA CN108957790B (en) | 2018-08-10 | 2018-08-10 | Glasses for detecting myopia degrees and method for detecting myopia degrees |
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| CN109613694A (en) * | 2019-01-28 | 2019-04-12 | 长治医学院 | Use the optometry equipment of varifocal liquid lens |
| CN111110182B (en) * | 2019-12-27 | 2022-05-27 | 河北工业职业技术学院 | Lens group structure for vision detection and vision detection method |
| TWI776459B (en) * | 2021-04-08 | 2022-09-01 | 上河國際有限公司 | A device that can quickly and autonomously screen the required optical power |
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| CN206411353U (en) * | 2017-01-22 | 2017-08-15 | 温州海迪光学有限公司 | A kind of Focusable glasses and its eyeglass |
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| CN205121076U (en) * | 2015-11-05 | 2016-03-30 | 张晓凡 | Glasses |
| CN106773122A (en) * | 2017-01-22 | 2017-05-31 | 温州海迪光学有限公司 | Adjustable focus lens and preparation method thereof and the glasses using the eyeglass |
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| CN108957790A (en) | 2018-12-07 |
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