CN101352385B - Pupillary distance adjusting device of amblyopia therapeutic equipment - Google Patents
Pupillary distance adjusting device of amblyopia therapeutic equipment Download PDFInfo
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- CN101352385B CN101352385B CN2008101188597A CN200810118859A CN101352385B CN 101352385 B CN101352385 B CN 101352385B CN 2008101188597 A CN2008101188597 A CN 2008101188597A CN 200810118859 A CN200810118859 A CN 200810118859A CN 101352385 B CN101352385 B CN 101352385B
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Abstract
The invention provides a pupil adjusting mechanism of an amblyopia therapeutic instrument, consisting of two parts: a lens component and a drawtube component. the drawtube component is arranged on the case of the amblyopia therapeutic instrument by screws; the lens component is arranged on the guideway of the amblyopia therapeutic instrument; the lens component consists of an ocular frame, an ocular lens, a supporting rod, an adjusting supporter, a pad and a sliding block; the ocular drawtube consists of a pressing plate, a transverse pulling plate, an ocular slideway, a right ocular and a left ocular; the structure of the left ocular is similar to that of the right ocular and the difference thereof is that the gap of the right shielding plate of the right ocular faces to the rear part and the gap of the left shielding plate of the left ocular faces to the front part; the ocular drawtube in the pupil adjusting mechanism is divided into a left drawtube and a right drawtube with the distance to be adjustable. The ocular of the invention has large calibre; the patterns of transparent films and rotation function sheet near the focus are imaged, thus facilitating the observation and training. The glass sheet in the dual-ocular drawtube is used for separating the ocular lens from the eye of human, thus ensuring the cleanness and imaging quality of the ocular lens.
Description
(1) technical field
The invention provides a kind of pupillary distance adjusting device of amblyopia therapeutic equipment, it relates to a kind of medical device for the treatment of ophthalmic diseasess such as children's myopia using stravismus, specifically, relate to the medical device technology device of eye-observation object image-forming situation, belong to technical field of medical instruments.
(2) background technology
Amblyopia is the commonly encountered diseases in the childhood development process, it is generally acknowledged, amblyopia is grown unsound owing to macula retinae or the function inhibition causes.Amblyopia is a kind of growth irregularity ocular disease, and amblyopia is often by due to stravismus, anisometropia or the height ametropia.The hazardness of amblyopia and stravismus not only is visual disturbance, sees that object is smudgy, also be to lack perfect stereopsis, and stereoscopic vision is the social essential highest visual performance that adapts to scientific and technological high speed development.
Amblyopia can be regarded a kind of vision " atrophy " or visual cell " sleep " in essence as, and the effect of amblyopia instrument is to wake the visual cell of " sleep " up and increase indirectly and look or temper the vision of " atrophy " and directly increase and look with icon with colour code.This shows that the amblyopia instrument increases view principle can reduce two big classes: 1, icon function is tempered the vision of " atrophy "; 2, the coloured light function " is waken " visual cell up.
For many years, on psychology, neuro physiology and electrophysiology, utilize experimental animal model to discover that the visual development process has plasticity in the specific stage, thereby the foundation and the age of amblyopia and stravismus treatment and stereopsis are closely related.Age is big more, and treatment is difficulty more.There are substantial connection at amblyopia treatment effect and age, and the age is more little, and curative effect is good more.Therefore, early diagnosis (before 8 years old) is treated and is adhered to the key factor that family therapy just becomes influences the amblyopia curative effect for a long time.The amblyopia treatment method of widespread usage is a lot of at present, suppresses method and vision physiological stimulus therapy etc. as traditional covering method, non-traditional covering method, after image therapy, red flare, optics and medicine.In the process that multi-functional amblyopia instrument uses, the amblyopia patient only clearly could on purpose carry out every training under the situation looking thing, reaches the purpose of rehabilitation.Amblyopia patient's age varies, and the degree of eye development is also different, and the interpupillary distance difference is bigger.According to data, China 5～10 children's average interpupillary distance is: and the about 54.3mm of boy (44mm ~ 66mm), the about 53.3mm of girl (43mm ~ 63mm).The monocular amblyopia instrument of Xiao Shouing is completely without pupillary distance adjusting device in the market, and binocular amblyopia instrument does not also all consider to adjust the problem of interpupillary distance, and long-term training can cause new vision to grow damage under the inappropriate situation of interpupillary distance.Child and teenager are before 12 years old, and especially eye outward appearance physiological values is in the dynamic growth before 8 years old.Should regularly replace suitable interpupillary distance according to physiological change when therefore, it is rescued for the child who suffers from myopia, stravismus and amblyopia and teenager trains and treats.
Pupillary distance adjusting device is one of critical component of amblyopia treatment system.This mechanism should take into full account amblyopia patient's different situations, adjusts different interpupillary distances according to different patients, in the hope of reaching best training effect.
(3) summary of the invention
The pupillary distance adjusting device that the purpose of this invention is to provide a kind of amblyopia therapeutic equipment, it is an eyepiece camera lens and the assembly of relevant observation lens barrel, is used for the different function picture training of amblyopia therapeutic equipment training process eyes close-ups.According to the needs of children's myopia using functional training project, this assembly makes the patient can two pictures of observing simultaneously in the visual field, guarantees the integrity of stereoscopic vision, reaches training objectives, and the picture in also can the monocular vision visual field reaches training objectives.
The pupillary distance adjusting device of a kind of amblyopia therapeutic equipment of the present invention is to be made of lens subassembly, barrel assembly two big parts.Barrel assembly is installed in by screw on the cabinet of amblyopia therapeutic equipment, and lens subassembly is installed on the guide rail of amblyopia treatment instrument body.
Described lens subassembly is made of eyepiece frame, eyepiece lens, pole, adjusting bearing, pad, slide block.Eyepiece frame is a circular mount structure, is used to install eyepiece lens, and pole is connected with eyepiece frame, and pole links to each other with the adjusting bearing, regulates bearing and is fixedly mounted on the pad center, and pad connects firmly on slide block by screw.
Described barrel assembly is made up of protecgulum, horizontal backing plate, back dark slide, eyepiece lens barrel, scale.Described protecgulum is to be shell structure, is mainly used in the eyepiece lens barrel is installed, and the protecgulum middle part has elongated slot, and an installing plate is respectively arranged up and down, has installing hole on the installing plate, is used for fixing to be installed on the amblyopia therapeutic equipment cabinet; Described horizontal backing plate is a bar shaped part, and the middle part has stepped hole, uses screw that it is connected on the protecgulum, and screw sinks to stepped hole, makes horizontal backing plate upper surface keep smooth; There is screwed hole at described horizontal backing plate two ends, are used to install the eyepiece lens barrel; Described back dark slide is a plate, has two, is installed in the protecgulum two ends respectively, is used to block external light source; Described scale is the upper edge that a ruler that has a scale signal is attached to protecgulum, is used for width between eyepiece and regulates reference.
The eyepiece lens barrel is made up of pressing plate, horizontal arm-tie, eyepiece slide rail, right eyepiece, left eyepiece.Described eyepiece slide rail is a rectangular frame structure, and the side is " worker " font structure, and the two ends, bottom have a flange respectively, have through hole on each flange, and the screwed hole corresponding with horizontal backing plate two ends installed by screw and connected; Described pressing plate is the strip structure, has 4, and each has some through holes above the pressing plate, is used for screw and connects; Pressing plate is fastened on the eyepiece slide rail by screw, constitutes 4 chutes; Described horizontal arm-tie is a chamfering rectangle frame structure, and horizontal arm-tie is installed in two chutes of back, can horizontally slip; Described right eyepiece, left eyepiece are installed in two chutes of front, can horizontally slip.This left side eyepiece is installed in the left side of the preceding chute of pressing plate and eyepiece slide rail formation, this right side eyepiece is installed in the right of the preceding chute of pressing plate and eyepiece slide rail formation, and the right dark slide of right eyepiece and the left dark slide of left eyepiece are overlapped at the middle part, and the thickness of lap is consistent with the chute width, in actual use, the dark slide of overlapping can cover the light source of front all the time.
Described right eyepiece is made up of lens barrel, lens barrel pad, eyepiece sheet glass, right dark slide, lens barrel fixture, eyepiece lens barrel cover.Described right dark slide slab structure, the left side has circular hole, and circular has 4 screwed holes, is used to install lens barrel fixture, eyepiece lens barrel cover; Described right dark slide left side thickness is half of the right thickness, and the breach direction in the wings; Described lens barrel fixture is a logical structure in the tubular, and flange is arranged at the bottom, and four jiaos have through hole, corresponding with the screwed hole on the right dark slide, and lens barrel fixture inner peripheral surface has been attacked screw thread, and the bottom of thread has a small boss; Described eyepiece sheet glass is installed in the lens barrel fixture, and plane of eyepiece sheet glass and the small boss in the lens barrel fixture are fitted; Described lens barrel pad outer circumference surface has been attacked screw thread, with the threaded engagement screw-in of lens barrel fixture inner peripheral surface, fixed eyepiece sheet glass; Described lens barrel outer circumference surface has been attacked screw thread, and with the threaded engagement screw-in of lens barrel fixture inner peripheral surface, user can be regulated the screw-in amount of lens barrel as required; Flange is arranged at described eyepiece lens barrel cover bottom, and four jiaos have through hole, corresponding with the screwed hole on the right dark slide, connect by screw lens barrel fixture, eyepiece lens barrel cover are fixed on the right dark slide.
The structure of described left eyepiece and the structure of right eyepiece are similar, the right dark slide breach direction of different is right eyepiece in the wings, and the breach direction of the left dark slide of left eyepiece is forwardly.
The patient in use can be according to interpupillary distance and the spacing of regulating right eyepiece and left eyepiece with reference to scale; When spacing during greater than certain distance, under the effect of horizontal arm-tie, when drawing right eyepiece to the right, left eyepiece can move to right with one on right eyepiece, and is same, and when the eyepiece of a Zola left side, right eyepiece can move to left with making one on eyepiece.
Eyepiece among the present invention, bore is big, with the pattern imaging of near transparent film its focus and spinfunction sheet, so that observe training.Sheet glass in the binocular lens barrel is used for isolating eyepiece camera lens and human eye, guarantees the cleaning and the image quality of eyepiece camera lens.
About eyepiece lens barrel in the pupillary distance adjusting device of amblyopia therapeutic equipment of the present invention divides two, both distances can be adjusted, so that adapt to the different interpupillary distance of patient.
The pupillary distance adjusting device of a kind of amblyopia therapeutic equipment of the present invention, its advantage and the effect that reaches are: (1) two eyepiece lens barrel spacing is adjustable, can adapt to different patient demands, improves the training effect; (2) eyepiece is provided with the protection protecgulum outward, can keep eyepiece sheet glass cleaning, prolongs instrument service life.(3) manually adjust two eyepiece lens barrel spacings, slide light, safe and reliable.(4) both can carry out eyes tests, also can carry out simple eye test, adapt to disease and patient group extensive; (5) adopted the movable transverse arm-tie, can independent control eyepiece lens barrel, but when strengthening, spacing can make two eyepiece lens barrel interlocking linkages, prevent to occur the exposure phenomenon owing to the width of left and right sides dark slide is limited; (6) adopt the eye protection cover, strengthened holding together light effect, improved therapeutic efficacy; (7) pupillary distance adjusting device is all in the protecgulum inboard, and movable part does not expose, and the child is safe and reliable; (8) protecgulum has scale, and lens barrel has groove and aligns with it, is convenient to make the optical axis alignment of two lens barrels (simple eye test is a lens barrel) and whole instrument.
(4) description of drawings
Fig. 1 is an amblyopia therapeutic equipment pupillary distance adjusting device sketch map of the present invention
Fig. 2 is a lens subassembly structure exploded perspective view of the present invention.
Fig. 3 is a barrel assembly forward direction structure exploded perspective view of the present invention.
Fig. 4 is to the structure exploded perspective view behind the barrel assembly of the present invention.
Fig. 5 is an eyepiece lens barrel structure exploded perspective view of the present invention.
Fig. 6 is the right goggle structure exploded perspective view of the present invention.
Fig. 7 is the present invention left side goggle structure sketch map.
Number in the figure is described as follows:
1, barrel assembly 2, lens subassembly 3, eyepiece frame
4, eyepiece lens 5, pole 6, adjusting bearing
7, pad 8, slide block 9, protecgulum
10, horizontal backing plate 11, back dark slide 12, eyepiece lens barrel
13, pressing plate 14, horizontal arm-tie 15, eyepiece slide rail
16, right eyepiece 17, left eyepiece 18 lens barrels
19, lens barrel pad 20, eyepiece sheet glass 21 right dark slides
22, lens barrel fixture 23, eyepiece lens barrel overlap 24 scales
25, left dark slide 26, eyepiece frame pad
(5) specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the pupillary distance adjusting device of a kind of amblyopia therapeutic equipment of the present invention is made of barrel assembly 1,2 liang of big parts of lens subassembly.Barrel assembly 1 is installed in by screw on the cabinet of amblyopia therapeutic equipment, and lens subassembly 2 is installed on the guide rail of amblyopia treatment instrument body.
As shown in Figure 1 and Figure 2, described lens subassembly 2 is made of eyepiece frame 3, eyepiece lens 4, pole 5, adjusting bearing 6, pad 7, slide block 8, eyepiece frame pad 26.Eyepiece frame 3 is circular mount structures, is used to install eyepiece lens 4, eyepiece frame 3, and inwall has fine thread, and an end has flange; Eyepiece frame pad 26 is a cirque structure, and outer circumference surface has fine thread, cooperates screw-in with eyepiece frame 3, and eyepiece lens 4 is fixed on the eyepiece frame 3; Pole 5 is connected with eyepiece frame 3, and pole 5 links to each other with adjusting bearing 6, regulates bearing 6 and is fixedly mounted on pad 7 centers, and pad 7 connects firmly on slide block 8 by the screw connection.
Shown in Fig. 3,4, described barrel assembly 1 is made up of protecgulum 9, horizontal backing plate 10, back dark slide 11, eyepiece lens barrel 12, scale 24.Described protecgulum 9 is rectangle open type housing parts, is mainly used in eyepiece lens barrel 12 is installed, and protecgulum 9 middle parts have elongated slot, and an installing plate is respectively arranged up and down, have installing hole on the installing plate, are used for fixing to be installed on the amblyopia therapeutic equipment cabinet; Described horizontal backing plate 10 is cuboid bar shaped parts, and the middle part has two row totally 8 stepped holes, use soket head cap screw to be fixed and be connected on the protecgulum 9, and soket head cap screw sinks to stepped hole, makes horizontal backing plate 10 upper surfaces keep smooth; Respectively there are two screwed holes at described horizontal backing plate 10 two ends, are used to install eyepiece lens barrel 12; Described back dark slide 11 is U-shaped plates, has two, is installed in the two ends of protecgulum 9 respectively, is used to block external light source; Described scale 24 is upper edges that a ruler that has a scale signal is attached to protecgulum 9, is used for width between eyepiece and regulates reference.
As shown in Figure 5, eyepiece lens barrel 12 is made up of pressing plate 13, horizontal arm-tie 14, eyepiece slide rail 15, right eyepiece 16, left eyepiece 17.Described eyepiece slide rail 15 is a rectangular frame structure, and the side is " worker " font structure, and the two ends, bottom have a flange respectively, have two through holes on each flange, and the screwed hole corresponding with horizontal backing plate 10 two ends installed by screw and connected; Described pressing plate 13 is the strip part, has 4, and each has 5 through holes above the pressing plate 13, is used for screw and connects; Shown in Fig. 3,4,5, pressing plate 13 is fastened on the eyepiece slide rail 15 by screw, constitutes 4 chutes; Described horizontal arm-tie 14 is a chamfering rectangle frame structure, and horizontal arm-tie 14 is installed in two chutes of back, can horizontally slip; Described right eyepiece 16, left eyepiece 17 are installed in two chutes of front, can horizontally slip.The right eyepiece 16 of horizontal arm-tie 14 sockets, left eyepiece 17 can slide right eyepiece 16, left eyepiece 17 within the specific limits simultaneously.
Shown in Fig. 5,6,7, described left eyepiece 17 is installed in the left side of the preceding chute of pressing plate 13 and eyepiece slide rail 15 formations, right eyepiece 16 is installed in the right of the preceding chute of pressing plate 13 and eyepiece slide rail 15 formations, and the right dark slide 21 of right eyepiece 16 is overlapped at the middle part with the left dark slide 25 of left eyepiece 17, and the thickness of lap is consistent with the chute width, in actual use, the dark slide of overlapping can cover the light source of front all the time.
As shown in Figure 6, described right eyepiece 16 is made up of lens barrel 18, lens barrel pad 19, eyepiece sheet glass 20, right dark slide 21, lens barrel fixture 22, eyepiece lens barrel cover 23.Described right dark slide 21 is the rectangular-plate-shaped structure, and the left side has circular hole, and circular has 4 screwed holes, is used to install lens barrel fixture 22, eyepiece lens barrel cover 23; Described right dark slide 21 left side thickness are half of the right thickness, and the breach direction in the wings; Described lens barrel fixture 22 is a logical structure in the cylindrical shape, and square flange is arranged at the bottom, and four jiaos have 4 through holes, and corresponding with 4 screwed holes on the right dark slide 21, lens barrel fixture 22 inner peripheral surfaces have been attacked fine thread, and a small boss is arranged at the fine thread bottom; Described eyepiece sheet glass 20 is installed in the lens barrel fixture 22, and the small boss in plane of eyepiece sheet glass 20 and the lens barrel fixture 22 is fitted; Described lens barrel pad 19 is a cirque structure, and outer circumference surface has been attacked fine thread, cooperates screw-in, fixed eyepiece sheet glass 20 with the fine thread of lens barrel fixture 22 inner peripheral surfaces; Described lens barrel 18 is a logical structure in the tubular, and outer circumference surface has been attacked fine thread, cooperates screw-in with the fine thread of lens barrel fixture 22 inner peripheral surfaces, and user can be regulated the screw-in amount of lens barrel 18 as required; Described eyepiece lens barrel cover 23 is a logical structure in the cylindrical shape, and square flange is arranged at the bottom, and four jiaos have 4 through holes, corresponding with 4 screwed holes on the right dark slide 21, connects by screw lens barrel fixture 22, eyepiece lens barrel cover 23 are fixed on the right dark slide 21.
As shown in Figure 7, the structure of the structure of left eyepiece 17 and right eyepiece 16 is similar, the right dark slide 21 breach directions of different is right eyepiece 16 in the wings, and the breach direction of the left dark slide 25 of left eyepiece 17 is forwardly.
As Fig. 1, shown in Figure 5, the patient in use can be according to interpupillary distance and the spacing of regulating right eyepiece 16 and left eyepiece 17 with reference to scale 24; When spacing during greater than certain distance, under the effect of horizontal arm-tie 14, when drawing right eyepiece 16 to the right, left eyepiece 17 can move to right with 16 1 on right eyepiece, and is same, and when the eyepiece 17 of a Zola left side, right eyepiece 16 can move to left with making 17 1 on eyepiece.
Claims (1)
1. the pupillary distance adjusting device of an amblyopia therapeutic equipment, it is characterized in that: it is to be made of lens subassembly and barrel assembly two big parts; Barrel assembly is installed in by screw on the cabinet of amblyopia therapeutic equipment, and lens subassembly is installed on the guide rail of amblyopia treatment instrument body;
Described lens subassembly is to be made of eyepiece frame, eyepiece lens, pole, adjusting bearing, pad, slide block; Eyepiece frame is a circular mount structure, is used to install eyepiece lens, and pole is connected with eyepiece frame, and pole links to each other with the adjusting bearing, regulates the center that bearing is fixedly mounted on pad, and pad connects firmly on slide block by screw;
Described barrel assembly is made up of protecgulum, horizontal backing plate, back dark slide, eyepiece lens barrel, scale; This protecgulum is a shell structure, is used to install the eyepiece lens barrel, and the protecgulum middle part has elongated slot, and an installing plate is respectively arranged up and down, has installing hole on the installing plate, is used for fixing to be installed on the amblyopia therapeutic equipment cabinet; This horizontal backing plate is a bar shaped part, and the middle part has stepped hole, uses screw that it is connected on the protecgulum, and screw sinks to stepped hole, makes horizontal backing plate upper surface keep smooth; There is screwed hole at these horizontal backing plate two ends, are used to install the eyepiece lens barrel; This back dark slide is a plate, has two, is installed in the protecgulum two ends respectively, is used to block external light source; This scale is carved with scale, is attached to the upper edge of protecgulum, is used for width between eyepiece and regulates reference;
This eyepiece lens barrel is made up of pressing plate, horizontal arm-tie, eyepiece slide rail, right eyepiece, left eyepiece; This eyepiece slide rail is a rectangular frame structure, and the side is " worker " font structure, and the two ends, bottom have a flange respectively, have through hole on each flange, and the screwed hole corresponding with horizontal backing plate two ends installed by screw and connected; This pressing plate is the strip structure, has 4, and each has predetermined through hole above the pressing plate, is used for screw and connects; Pressing plate is fastened on the eyepiece slide rail by screw, constitutes 4 chutes; This horizontal arm-tie is a chamfering rectangle frame structure, and horizontal arm-tie is installed in two chutes of back, can horizontally slip; This right side eyepiece, left eyepiece are installed in two chutes of front, can horizontally slip; This left side eyepiece is installed in the left side of the preceding chute of pressing plate and eyepiece slide rail formation, this right side eyepiece is installed in the right of the preceding chute of pressing plate and eyepiece slide rail formation, and the right dark slide of right eyepiece and the left dark slide of left eyepiece are overlapped at the middle part, and the thickness of lap is consistent with the chute width, in actual use, the dark slide of overlapping can cover the light source of front all the time;
This right side eyepiece is made up of lens barrel, lens barrel pad, eyepiece sheet glass, right dark slide, lens barrel fixture, eyepiece lens barrel cover; This right side dark slide is a slab structure, and the left side has circular hole, and circular has 4 screwed holes, is used to install lens barrel fixture and eyepiece lens barrel cover; This dark slide left side, right side thickness is half of the right thickness, and the breach direction in the wings; This lens barrel fixture is a logical structure in the tubular, and flange is arranged at the bottom, and four jiaos have through hole, corresponding with the screwed hole on the right dark slide, and this lens barrel fixture inner peripheral surface has been attacked screw thread, and the bottom of thread has a small boss; This eyepiece sheet glass is installed in the lens barrel fixture, and plane of eyepiece sheet glass and the small boss in the lens barrel fixture fit; This lens barrel pad outer circumference surface has been attacked screw thread, with the threaded engagement screw-in of lens barrel fixture inner peripheral surface, fixes the eyepiece sheet glass; This lens barrel outer circumference surface has been attacked screw thread, and with the threaded engagement screw-in of lens barrel fixture inner peripheral surface, user can be regulated the screw-in amount of lens barrel as required; Flange is arranged at this eyepiece lens barrel cover bottom, and four jiaos have through hole, corresponding with the screwed hole on the right dark slide, connect by screw lens barrel fixture and eyepiece lens barrel cover are fixed on the right dark slide;
The structure of described left eyepiece and the structure of right eyepiece are similar, the left side of the right dark slide of right eyepiece that different is has circular hole, half that its left side thickness is the right thickness and breach direction are in the wings, and the right of the left dark slide of left eyepiece has circular hole, half that its right thickness is left side thickness and breach direction are forwardly, left dark slide with the right dark slide that reaches right eyepiece and left eyepiece is overlapped at the middle part, and the thickness of lap is consistent with the chute width;
About eyepiece lens barrel in the pupillary distance adjusting device divides two, both distances can be adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101188597A CN101352385B (en) | 2008-08-26 | 2008-08-26 | Pupillary distance adjusting device of amblyopia therapeutic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101188597A CN101352385B (en) | 2008-08-26 | 2008-08-26 | Pupillary distance adjusting device of amblyopia therapeutic equipment |
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| Publication Number | Publication Date |
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| CN101352385A CN101352385A (en) | 2009-01-28 |
| CN101352385B true CN101352385B (en) | 2010-12-29 |
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| CN2008101188597A Expired - Fee Related CN101352385B (en) | 2008-08-26 | 2008-08-26 | Pupillary distance adjusting device of amblyopia therapeutic equipment |
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| WO2020123841A1 (en) * | 2018-12-12 | 2020-06-18 | New Jersey Institute Of Technology | Systems and methods for rendering general virtual reality environments for vision therapy |
| CN109674630A (en) * | 2019-02-01 | 2019-04-26 | 河南云睛视光科技有限公司 | A kind of training equipment with enhancing visual function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853025Y (en) * | 2005-12-21 | 2007-01-03 | 刘东光 | Multifunction amblyopia therapeutic instrument |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853025Y (en) * | 2005-12-21 | 2007-01-03 | 刘东光 | Multifunction amblyopia therapeutic instrument |
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Granted publication date: 20101229 Termination date: 20110826 |