CN117518529A - Composite glasses for preventing and controlling myopia - Google Patents
Composite glasses for preventing and controlling myopia Download PDFInfo
- Publication number
- CN117518529A CN117518529A CN202311603901.5A CN202311603901A CN117518529A CN 117518529 A CN117518529 A CN 117518529A CN 202311603901 A CN202311603901 A CN 202311603901A CN 117518529 A CN117518529 A CN 117518529A
- Authority
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- China
- Prior art keywords
- lens
- defocusing
- myopia
- flat
- control according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 208000001491 myopia Diseases 0.000 title claims abstract description 58
- 230000004379 myopia Effects 0.000 title claims abstract description 50
- 239000011521 glass Substances 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 21
- 238000012937 correction Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 230000002265 prevention Effects 0.000 claims description 22
- 230000000750 progressive effect Effects 0.000 claims description 7
- 230000000007 visual effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 210000001525 retina Anatomy 0.000 claims description 5
- 208000029091 Refraction disease Diseases 0.000 claims description 3
- 230000004430 ametropia Effects 0.000 claims description 3
- 208000014733 refractive error Diseases 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 210000001508 eye Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 210000004087 cornea Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 208000030533 eye disease Diseases 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 208000029257 vision disease Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C9/00—Attaching auxiliary optical parts
- G02C9/02—Attaching auxiliary optical parts by hinging
-
- 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
- G02C7/086—Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses a compound glasses for preventing and controlling myopia, comprising: the flat bottom defocusing lens is used for correcting the ocular defocusing and comprises a lens substrate and a micro lens array, wherein the micro lens array is uniformly arranged and distributed on the surface of the flat bottom lens substrate according to the trend of two mutually staggered Archimedes spiral lines; a myopic lens for refractive correction; the myopia lens and the flat-bottom defocusing lens share a pair of glasses frame, the size of the myopia lens is 90% of that of the flat-bottom defocusing lens, and the center of the myopia lens is coaxial with the center of the flat-bottom defocusing lens. The invention has the function of defocus correction on the basis of refraction correction, and can freely switch the use of the two lenses, thereby meeting different use requirements of users.
Description
Technical Field
The invention relates to the technical field of myopia prevention and control, in particular to compound glasses for myopia prevention and control.
Background
Myopia is a common human visual disorder, and 70% of teenagers in China are affected by myopia to different degrees. Myopia not only affects teenager image, but also may cause eye diseases, so it is imperative to delay the development of teenager's eye myopia. At present, products widely applied to myopia prevention and control are cornea shaping lenses, rigid air-permeable cornea contact lenses and progressive defocus lenses.
Products on the market at present are myopia glasses and myopia defocusing glasses. In these techniques, only a single situation in actual use is often considered, for example, a myopic lens can only perform refractive correction, a myopic defocus lens emphasizes defocus correction, and a myopic defocus lens often makes refraction and defocus on one lens and cannot be switched, which has no flexible selectivity for a user and affects actual use. That is, the current products do not consider the actual situation where myopia and defocus require a compound use and free switching.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the progressive defocus lens needs to be replaced for the myopic crowd because of the working requirement in the prior art, provides the compound glasses for preventing and controlling myopia, has the defocus correction function on the basis of refraction correction, and can freely switch the use of the two lenses, thereby meeting different use requirements of users.
In order to solve the technical problems, the invention provides a pair of compound glasses for preventing and controlling myopia, comprising:
the flat bottom defocusing lens is used for correcting the ocular defocusing and comprises a lens substrate and a micro lens array, wherein the micro lens array is uniformly arranged and distributed on the surface of the flat bottom lens substrate according to the trend of two mutually staggered Archimedes spiral lines;
a myopic lens for refractive correction; the myopia lens and the flat-bottom defocusing lens share a pair of glasses frame, the size of the myopia lens is 90% of that of the flat-bottom defocusing lens, and the center of the myopia lens is coaxial with the center of the flat-bottom defocusing lens.
In one embodiment of the invention, the flat bottom defocus lens comprises two distinct visual effect zones, a central zone and a defocus zone, respectively; the central area is a circle surrounded by two mutually staggered Archimedes spiral innermost curves, and the defocusing area is arranged at the outer side of the central area.
In one embodiment of the invention, the ratio of the central zone to the defocus zone size is about 1:3.
in one embodiment of the invention, the microlens array includes 108 microlenses.
In one embodiment of the present invention, the microlens is one of an aspherical lens, a spherical lens, or a free-form surface lens.
In one embodiment of the invention, the flat bottom defocus lens controls the focus position of the incident light in front of the retina by optimally setting the difference in surface curvature between the different microlenses, creating a progressive defocus effect.
In one embodiment of the invention, the size of the diopter (+ -D) of the near vision lens is adapted according to the extent of the user's ametropia.
In one embodiment of the invention, the eyeglass frame comprises an outer rim and an inner rim, the outer rim being connected by a pair of rotational shafts, the outer rim being provided with a flat bottom defocus lens and the inner rim being provided with a myopic lens.
In one embodiment of the invention, the angle between the outer and inner rims is adjustable from 0 ° to 120 °.
In one embodiment of the invention, two ends of the rotating shaft are provided with rotating shaft hinges for fixing the space position of the outer side mirror frame after the outer side mirror frame is turned over.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the compound glasses for myopia prevention and control have the functions of flat bottom defocus and refraction correction, and can freely switch the use of two lenses, so that different use requirements of users are met; when a user needs to use myopia and defocus in a combined way, the compound glasses realize the progressive defocus function of the peripheral visual field by using the flat bottom defocus lens of the compound glasses, and the refraction correction function is realized by the myopia lens of the compound glasses; when the user has high requirements on visual definition and does not need defocus control, the flat bottom defocus lens can be directly turned over by a proper angle so that only the myopia lens is used.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a block diagram of a composite eyeglass for myopia prevention and control in a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a microlens array distribution on a flat bottom defocused lens of the myopia prevention and control composite eyewear of FIG. 1;
(a) Is a structural schematic diagram of two Archimedes spiral lines;
(b) Is a schematic distribution diagram of the arrangement of the micro lens array in a mode of two Archimedes spiral lines.
Description of the specification reference numerals: 1. a flat bottom defocused lens; 11. a central region; 12. a defocus region; 2. a microlens array; 13. a first spectacle frame leg; 10. a second spectacle frame leg; 4. a myopic lens; 5. a frame cross member; 6. a spindle hinge; 7. a rotating shaft; 8. an inner side mirror frame; 9. a connecting hinge; 13. an outer mirror frame; 201. archimedes spiral.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1 and 2, the composite glasses for myopia prevention and control according to the present invention comprises: the flat bottom defocusing lens 1 is used for correcting the visual defocusing of eyes and comprises a lens substrate and a micro lens array 2, wherein the micro lens array 2 is uniformly arranged and distributed on the surface of the flat bottom lens substrate according to the trend of two mutually staggered Archimedes spiral lines 201; the lens substrate is made of PC material, so that the impact resistance is high, and the wearing safety is high; a myopic lens 4 for refractive correction; the near-sighted lens 4 and the flat-bottom defocused lens 1 share a pair of glasses frames, the size of the near-sighted lens 4 is 90% of that of the flat-bottom defocused lens 1, and the center of the near-sighted lens 4 is coaxial with the center of the flat-bottom defocused lens 1.
In one embodiment of the invention, the flat bottom defocus lens 1 comprises two distinct zones of visual effect, a central zone 11 and a defocus zone 12, respectively; the central area 11 is a circle surrounded by two mutually staggered Archimedes spiral 201 innermost curves, and the defocusing area 12 is arranged outside the central area.
In this embodiment, the ratio of the size of the central zone 11 to the size of the defocus zone 12 is about 1:3.
preferably, the microlens array 2 comprises 108 microlenses. Light is refracted into the eyeball through the microlenses, and a non-concentrated light beam band is formed in front of the retina according to the radian of the retina, so that a defocusing effect is formed, and the growth of an eye axis is controlled or delayed.
Wherein the micro lens is one of an aspheric lens, a spherical lens or a free-form surface lens. The micro lens can be provided with different surface types according to the actual demands of users, so that the wearing comfort of the users is ensured, and the micro lens is plated with an antireflection film, blue light prevention films and ultraviolet films.
In this embodiment, two mutually staggered archimedes spiral lines 201 are formed by combining the arrangement modes of 108 aspherical microlenses, wherein the equations of the two archimedes spiral lines 201 in the polar coordinate system are r=aθ+b and r= -aθ+b respectively. The equations in the polar coordinate system of the two archimedes spiral 201 are r=aθ+b and r= -aθ+b, respectively. Wherein a is Archimedes spiral coefficient, the unit is mm/°, and the increase (or decrease) amount of the polar diameter is expressed when the polar diameter rotates by 1 degree; θ is the polar angle in degrees, representing the total number of degrees the archimedes spiral turns through; the parameter b controls the distance between two adjacent curves. The value of a is set according to the diameter of the micro lens, and can be constant or can be set as a variable according to the optimization of the defocus control effect; the value of θ is 720 degrees; the value of b is 5, in mm.
Wherein, the flat bottom defocusing lens 1 controls the focusing position of the incident light in front of retina by optimally setting the difference of surface curvatures among different micro lenses, so as to form the progressive defocusing effect;
the magnitude of the diopter (+ -D) of the near vision lens 4 in this embodiment is adapted according to the degree of ametropia of the user.
Preferably, the spectacle frame comprises an outer rim 13 and an inner rim 8, both connected by a pair of shafts 7, the outer rim 13 being fitted with a flat bottom defocus lens 1 and the inner rim being fitted with a myopic lens 4. The spectacle frame further comprises a first spectacle frame leg 33, a second spectacle frame leg 10 and a spectacle frame cross beam 5, wherein the size, shape, material, color and the like of the spectacle frame cross beam 5 need to consider the installation coordination and consistency between the spectacle frame cross beam and the flat-bottom defocused lens 1, and the overall aesthetic property of the composite spectacles can also be set according to the preference of a user. The first eyeglass frame leg 3 and the second eyeglass frame leg 10 are connected with the inner side eyeglass frame 8 through the connecting hinge 9, and the same wearing mode as that of common eyeglasses can be adopted, the materials can be titanium alloy, plastic and the like, and the specific style and the color are customized and optimized according to the preference of a user.
In this embodiment, the angle between the outer frame 13 and the inner frame 8 is adjustable from 0 ° to 120 °. Suitable angular adjustment may provide the user with a manual switch use function of the lens. If the flat-bottom defocusing lens 1 and the myopia lens 4 are required to be used in a combined mode, the flat-bottom defocusing lens 1 is manually adjusted to an initial state through the hinge 6 and the rotating shaft 7, the relative angle of the two pairs of lenses is 0, and the vision of a user passes through the combined glasses and simultaneously carries out refraction and defocusing correction; if the user only needs to use the near vision lens 44 alone, the flat bottom defocusing lens 1 can be manually adjusted to have a proper angle with the near vision lens 4 through the hinge 6 and the rotating shaft 7, for example, 90 degrees, so that the flat bottom defocusing lens 1 is not in the visual field of the user.
As a further improvement of the invention, two ends of the rotating shaft 7 are provided with rotating shaft hinges 6 for fixing the space position of the outer mirror frame 13 after being turned over. The angle fixing function of the hinge 66 of the rotating shaft 7 can be realized by adopting a common mechanical design and processing mode, namely the hinge can be fixed immediately after being adjusted to a proper angle, and the fixing strength is enough to support the stable relative angle between the flat bottom defocusing lens and the myopia lens 4; the flat bottom defocusing lens 1 is arranged on the outer side mirror frame 13, a proper angle can be manually turned to ensure a normal diopter correction function when defocusing adjustment is not needed, and then the rotary shaft hinge 6 realizes the position fixation of the turned flat bottom defocusing lens 1.
The compound glasses for preventing and controlling myopia provided by the invention have the advantages of simple structure and easiness in use, can provide defocus correction function on the basis of refraction correction, and provide convenience for free switching for users. The flat-bottom progressive type flat-bottom defocusing lens 1 and the compound glasses of the myopia lens 4 are novel strategies and novel products which can be used for myopia prevention and control, are good supplements for the current myopia prevention and control industry, and are beneficial to the improvement of the omnibearing and accurate myopia prevention and control service level in the myopia prevention and control industry.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. A compound glasses for myopia prevention and control which characterized in that: comprising the following steps:
the flat bottom defocusing lens is used for correcting the ocular defocusing and comprises a lens substrate and a micro lens array, wherein the micro lens array is uniformly arranged and distributed on the surface of the flat bottom lens substrate according to the trend of two mutually staggered Archimedes spiral lines;
a myopic lens for refractive correction; the myopia lens and the flat-bottom defocusing lens share a pair of glasses frame, the size of the myopia lens is 90% of that of the flat-bottom defocusing lens, and the center of the myopia lens is coaxial with the center of the flat-bottom defocusing lens.
2. A compound spectacles for myopia prevention and control according to claim 1, wherein: the flat-bottom defocused lens comprises two different visual effect areas, namely a central area and a defocused area; the central area is a circle surrounded by two mutually staggered Archimedes spiral innermost curves, and the defocusing area is arranged at the outer side of the central area.
3. A compound spectacles for myopia prevention and control according to claim 2, wherein: the ratio of the central zone to the out-of-focus zone size is about 1:3.
4. a compound spectacles for myopia prevention and control according to claim 1, wherein: the microlens array includes 108 microlenses.
5. The compound spectacles for myopia prevention and control according to claim 4, wherein: the micro lens is one of an aspheric lens, a spherical lens or a free-form surface lens.
6. A compound spectacles for myopia prevention and control according to claim 1, wherein: the flat-bottom defocusing lens controls the focusing position of incident light rays in front of retina by optimally setting the difference of surface curvatures among different microlenses, so as to form the progressive defocusing effect.
7. A compound spectacles for myopia prevention and control according to claim 1, wherein: the size of the diopter (+ -D) of the near vision lens is adapted according to the extent of the ametropia of the user.
8. A compound spectacles for myopia prevention and control according to claim 1, wherein: the glasses frame comprises an outer glasses frame and an inner glasses frame, the outer glasses frame and the inner glasses frame are connected through a pair of rotating shafts, the outer glasses frame is provided with a flat bottom defocused lens, and the inner glasses frame is provided with a myopia lens.
9. The compound spectacles for myopia prevention and control according to claim 8, wherein: the angle between the outer side mirror frame and the inner side mirror frame is adjustable by 0-120 degrees.
10. The compound spectacles for myopia prevention and control according to claim 8, wherein: and two ends of the rotating shaft are provided with rotating shaft hinges for fixing the space position of the outer mirror frame after the outer mirror frame is overturned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311603901.5A CN117518529A (en) | 2023-11-28 | 2023-11-28 | Composite glasses for preventing and controlling myopia |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311603901.5A CN117518529A (en) | 2023-11-28 | 2023-11-28 | Composite glasses for preventing and controlling myopia |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117518529A true CN117518529A (en) | 2024-02-06 |
Family
ID=89749249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311603901.5A Pending CN117518529A (en) | 2023-11-28 | 2023-11-28 | Composite glasses for preventing and controlling myopia |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117518529A (en) |
-
2023
- 2023-11-28 CN CN202311603901.5A patent/CN117518529A/en active Pending
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