CN114415394A - Spectacle lens with defocusing function and preparation method - Google Patents
Spectacle lens with defocusing function and preparation method Download PDFInfo
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- CN114415394A CN114415394A CN202111322334.7A CN202111322334A CN114415394A CN 114415394 A CN114415394 A CN 114415394A CN 202111322334 A CN202111322334 A CN 202111322334A CN 114415394 A CN114415394 A CN 114415394A
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- 238000002360 preparation method Methods 0.000 title abstract description 11
- 230000003287 optical effect Effects 0.000 claims abstract description 137
- 238000012937 correction Methods 0.000 claims abstract description 30
- 239000010410 layer Substances 0.000 claims description 42
- 239000002346 layers by function Substances 0.000 claims description 41
- 238000002347 injection Methods 0.000 claims description 20
- 239000007924 injection Substances 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 20
- 229920005989 resin Polymers 0.000 claims description 20
- 239000003292 glue Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000011265 semifinished product Substances 0.000 claims description 7
- 238000005498 polishing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 208000001491 myopia Diseases 0.000 abstract description 19
- 230000004379 myopia Effects 0.000 abstract description 15
- 230000002265 prevention Effects 0.000 abstract description 3
- 210000001525 retina Anatomy 0.000 description 27
- 230000002093 peripheral effect Effects 0.000 description 12
- 210000005252 bulbus oculi Anatomy 0.000 description 8
- 230000004438 eyesight Effects 0.000 description 7
- 230000000007 visual effect Effects 0.000 description 7
- 210000001508 eye Anatomy 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 206010020675 Hypermetropia Diseases 0.000 description 2
- 230000004305 hyperopia Effects 0.000 description 2
- 201000006318 hyperopia Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000014733 refractive error Diseases 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 208000029091 Refraction disease Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004430 ametropia Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 230000008288 physiological mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00278—Lenticular sheets
-
- 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
- G02C7/022—Ophthalmic lenses having special refractive features achieved by special materials or material structures
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Eyeglasses (AREA)
Abstract
The utility model discloses a spectacle lens with a defocusing function, which relates to the technical field of myopia prevention and control and comprises a split type defocusing spectacle lens, wherein a central optical area is arranged on the defocusing spectacle lens, a far optical area, a near optical area, an inner optical area and an outer optical area are arranged on the defocusing spectacle lens, the far optical area and the near optical area are respectively positioned above and below the central optical area, the inner optical area and the outer optical area are respectively positioned at two sides of the central optical area, the angle range of the far optical area is a fan-shaped area which is 30-150 degrees along the horizontal radial line of the central optical area in the anticlockwise direction, the angle range of the near optical area is a fan-shaped area which is 45-135 degrees along the horizontal radial line of the central optical area in the clockwise direction, two fan-shaped areas are formed between the far optical area and the near optical area, and the two fan-shaped areas are respectively the inner optical area and the outer optical area; can be more comprehensive carry out myopia correction, adopt split type structure to make out of focus lens simultaneously, make out of focus lens's preparation simpler.
Description
Technical Field
The utility model relates to the technical field of myopia prevention and control, in particular to a spectacle lens with a defocusing function and a preparation method thereof.
Background
Medical science today admits: the growth of the eyeballs of the human visual eyes depends on the regulation and control of the peripheral retina focus, the peripheral retina hyperopic defocus promotes the growth of the eyeballs, the peripheral retina hyperopic defocus is corrected, and the growth of the myopic eyeballs can be controlled. The inner side or the outer side area of the traditional myopia spectacle lens is the concave lens with the same degree as the central area, the concave lens in the central area of the lens can correct the myopia defocusing in the center of the retina, and the concave lens in the inner side and the outer side peripheral area of the lens can increase the hyperopia defocusing in the inner side and the outer side of the lens, so that the growth of eyeballs can be promoted, the myopia degree can be increased, and the defocusing spectacle lens for performing myopia correction on the inner retina and the outer retina can appear on the market under the condition, for example: patent numbers: the utility model discloses a CN 201420413649.1's utility model patent discloses a peripheral out of focus frame lens in inboard outside district belongs to myopia prevention and cure glasses. Myopic eyes have a peripheral refractive asymmetry state of the retina, and the existing peripheral defocused spectacle lenses cannot eliminate the asymmetry state and also aggravate or generate refractive error. The utility model prepares the unequal correction degrees for the inner functional area and the outer functional area, and the correction degree of the inner functional area is greater than that of the outer functional area, thereby eliminating or reducing the peripheral asymmetric refractive state of the retina. The peripheral out-of-focus frame spectacle lens is used for correcting hyperopic out-of-focus at the periphery of the outer retina and the inner retina and controlling the growth of myopia eyeballs, has wide visual field and good wearing adaptability, eliminates the asymmetric refraction state at the periphery of the retina, recovers the normal physiological optical state of human eyes and effectively prevents and controls the myopia of children and teenagers;
the inner functional area and the outer functional area are divided into the spectacle lenses in the patent, however, according to the unique physiological mechanism of the eyeballs, the refraction of the eyes is asymmetric in the upper, lower, left and right directions, so that the patent does not divide a far vision functional area and a near vision functional area, and does not have far vision and near vision correction functions, so that the out-of-focus spectacle lenses cannot better and more comprehensively correct the near vision; present out of focus lens is monolithic structure simultaneously, its preparation method does, out of focus lens adopts the same kind of material to make overall structure, this kind of mode is because the material is the same, the diopter of its material itself is the same, consequently it is difficult to wholly process out the light zone of different diopters, the curvature radius of each light zone is adjusted to the in-process that needs follow-up polishing, in order to reach required diopter, nevertheless to polish the requirement higher, and the diopter differs between the great light zone and is difficult to smooth transition, lead to out of focus lens's surface drop great, influence its normal use.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides the spectacle lens with the out-of-focus function, can more comprehensively correct myopia, and simultaneously adopts a split structure to manufacture the out-of-focus spectacle lens, so that the out-of-focus spectacle lens is simpler to manufacture.
The purpose of the utility model is realized by the following technical scheme: a spectacle lens with a defocusing function comprises a split type defocusing spectacle lens, wherein a central optical area is arranged on the defocusing spectacle lens, a far optical area, a near optical area, an inner optical area and an outer optical area are arranged on the defocusing spectacle lens, the far optical area and the near optical area are respectively positioned above and below the central optical area, and the inner optical area and the outer optical area are respectively positioned at two sides of the central optical area;
the angle range of the far light area is a sector area with an anticlockwise angle of 30-150 degrees along a horizontal radial line of the central optical area, the angle range of the near light area is a sector area with a clockwise angle of 45-135 degrees along the horizontal radial line of the central optical area, two sector areas are formed between the far light area and the near light area, and the two sector areas are an inner light area and an outer light area respectively.
Further, the out-of-focus spectacle lens comprises a spectacle lens body, wherein a far sector groove is formed in the spectacle lens body, a far lens is adapted in the far sector groove, the far lens forms the far light area, a near sector groove is formed in the spectacle lens body, a near lens is adapted in the near sector groove, the near lens forms the near light area, an inner sector groove is formed in the spectacle lens body, an inner lens is adapted in the inner sector groove, the inner lens forms the inner light area, an outer sector groove is formed in the spectacle lens body, an outer lens is adapted in the outer sector groove, and the outer lens forms the outer light area.
Furthermore, far away with sector groove, near with sector groove, inboard sector groove and outside sector groove communicate in proper order and form the confined ring, and be provided with the spacer in the confined ring, the spacer is used for fixing a position of any one lens in far away with lens, near with lens, inboard lens and the outside lens on the out of focus lens.
Furthermore, the side wall of the out-of-focus spectacle lens is provided with a glue injection hole which is communicated with the closed ring.
Further, arc-shaped bulges are arranged on two sides of the far lens and the near lens, and the arc-shaped bulges are matched with the arc surface of the central optical area.
Furthermore, the out-of-focus spectacle lens comprises a refraction compensation layer, a functional layer and a refraction correction layer, wherein the functional layer is located between the refraction compensation layer and the refraction correction layer, one surface, away from the functional layer, of the refraction compensation layer is a convex surface, one surface, away from the functional layer, of the refraction correction layer is a concave surface, a plurality of convex surfaces and a plurality of concave surfaces are arranged on the functional layer, the plurality of convex surfaces form a continuous annular structure, the plurality of concave surfaces form a continuous annular structure, and the convex surfaces and the concave surfaces are arranged in a staggered mode along the radial direction to form a continuous wave-shaped structure.
Further, the functional layer is made of resin materials.
A method for preparing an eyeglass with a defocus function, comprising the steps of:
s1, obtaining a main body of the spectacle lens by adopting a mould;
s2, manufacturing a far lens blank, a near lens blank, an inner side lens blank and an outer side lens blank with corresponding diopter degrees by adopting a mould processing mode;
s3, polishing and trimming the distance lens blank, the near lens blank, the inner side lens blank and the outer side lens blank;
s4, assembling a far lens, a near lens, an inner lens and an outer lens on the out-of-focus lens;
s5, injecting resin glue into the out-of-focus spectacle lens through the glue injection hole, and adhering the far lens, the near lens, the inner side lens and the outer side lens to the out-of-focus spectacle lens to form a complete spectacle lens;
and S6, performing fine grinding on the surface of the spectacle lens.
A method for preparing an eyeglass with a defocus function, comprising the steps of:
s1, manufacturing a refraction compensation layer and a refraction correction layer; a mould space is formed in the mould, a function forming part is arranged in the middle of the mould, a plurality of convex parts and a plurality of concave parts are arranged on two end faces of the function forming part, the plurality of convex parts form a continuous annular structure, the plurality of concave parts form a continuous annular structure, the convex parts and the concave parts are arranged in a staggered mode along the radial direction to form a continuous wave-shaped structure, a defocusing spectacle lens forming raw material is injected into the mould space through an injection hole in the mould, so that a defocusing spectacle lens semi-finished product is formed, and an installation space with a functional layer is formed in the defocusing spectacle lens semi-finished product;
s2, taking the semi-finished product of the afocal spectacle lens as a functional layer manufacturing mold for forming the functional layer in the installation space; placing the semi-finished defocused spectacle lens in a shaping die, wherein the shape of the inner space of the shaping die is matched with the outer part of the semi-finished defocused spectacle lens, a die injection hole in the shaping die is communicated with the installation space, resin is injected into the installation space through the die injection hole in the shaping die, and a functional layer is formed in the installation space of the semi-finished defocused spectacle lens after curing to prepare a blank of the defocused spectacle lens;
and S3, finely grinding the blank of the out-of-focus spectacle lens in the step S2 to form the out-of-focus spectacle lens.
The utility model has the beneficial effects that:
1. because far with the light zone, near with the light zone, the diopter of each light zone in inboard light zone and outside light zone respectively does not communicate with each other, consequently out of focus lens adopts split type design to form far with the light zone, near with the light zone, inboard light zone and outside light zone, each light zone mutual independence, avoid astigmatism to produce, simultaneously carry out rational division to each light zone of out of focus lens, in order to accord with people's eyes physiology optical visual field needs, can more comprehensively carry out myopia correction, adopt split type structure to make out of focus lens simultaneously, make the preparation of out of focus lens simpler.
2. When the far lens, the near lens, the inner lens and the outer lens are installed, the position of one lens is quickly positioned through the positioning sheet, and then the other lenses are correspondingly installed, so that the corresponding lens is accurately installed in the corresponding light area.
3. Resin glue is injected into the circular ring of the out-of-focus spectacle lens through the glue injection hole so as to fix each lens on the out-of-focus spectacle lens and realize the installation of the split spectacle lens.
Drawings
FIG. 1 is a front view of an ophthalmic lens having an out-of-focus function according to the present invention;
FIG. 2 is a side view of a first embodiment of an ophthalmic lens having an out-of-focus function according to the present invention;
FIG. 3 is a schematic view of the structure of an ophthalmic lens body in an ophthalmic lens having a defocus function according to the present invention;
FIG. 4 is a side view of embodiment two of an ophthalmic lens with defocus capability of the present invention;
FIG. 5 is a schematic view of the internal structure of a mold according to a second embodiment of the present invention;
in the figure, 1-out-of-focus spectacle lens, 2-central optical zone, 3-far optical zone, 4-near optical zone, 5-inner optical zone, 6-outer optical zone, 7-far lens, 8-near lens, 9-inner lens, 10-outer lens, 11-spacer, 12-spectacle lens body, 13-arc protrusion, 14-mold space, 15-refraction compensation layer, 16-functional layer, 17-refraction correction layer, 18-convex surface, 19-concave surface, 20-convex portion, 21-concave portion.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Human eyeball is divided into far vision area, near vision area, inner side vision area and outer side vision area, different vision areas have different diopter to light, and defocusing glasses are generated for correcting myopia degree of different vision areas; in view of the whole out-of-focus lens of prior art has the problem of preparation difficulty, this application establishes out-of-focus lens into split type structure, and the processing preparation that reduces out-of-focus lens is difficult, and this application provides two kinds of embodiments to the split type structure of out-of-focus lens, and this structure according to corresponding embodiment out-of-focus lens provides corresponding processing preparation method, specifically as follows:
embodiment one, as shown in fig. 1 and 3, an eyeglass lens with a defocus function includes a defocus eyeglass lens 1, a central optical zone 2 is disposed on the defocus eyeglass lens 1, a far optical zone 3, a near optical zone 4, an inner optical zone 5 and an outer optical zone 6 are disposed on the defocus eyeglass lens 1, the far optical zone 3 and the near optical zone 4 are respectively located above and below the central optical zone 2, and the inner optical zone 5 and the outer optical zone 6 are respectively located at two sides of the central optical zone 2; as shown in fig. 1, the angle range of the far optical zone 3 is a sector area of 30 ° to 150 ° counterclockwise along the horizontal radial line HM of the central optical zone 2, the angle range of the near optical zone 4 is a sector area of 45 ° to 135 ° clockwise along the horizontal radial line HM of the central optical zone 2, two sector areas are formed between the far optical zone 3 and the near optical zone 4, and the two sector areas are an inner optical zone 5 and an outer optical zone 6, respectively; the method comprises the following steps that reasonable light area division is carried out on the out-of-focus spectacle lens 1 according to the visual field of human eyeballs, so that a far light area 3, a near light area 4, an inner light area 5 and an outer light area 6 are formed on the out-of-focus spectacle lens 1, the out-of-focus spectacle lens 1 is more consistent with the actual use visual field of the spectacles, and the myopia correction can be carried out more comprehensively; the four-division method is adopted for the division of the regions of the far light region 3, the near light region 4, the inner light region 5, and the outer light region 6: the division line of symmetry axis is an imaginary line, the symmetry axis of the analog imaginary is based on 315-135 degree axis and 225-45 degree axis, the two axes are crossed with each other at the center of the retina area and the optical center of the mirror visual field, and the two symmetry axes divide the retina into four symmetrical sector areas of Central Retina (CR) and peripheral retina in the central circular area. The four sector areas are respectively: the upper retina (SR), the lower retina (IR), the inner retina (NR) and the outer retina (TR), the lens visual field of the out-of-focus spectacle lens 1 is also divided into a circular central optical zone (CV)2 at the optical center and four far optical zones (SV)3, near optical zones (IV)4, inner optical zones (NV)5 and outer optical zones (TV)6 which are distributed in quadrants at the peripheral part, according to the principle that the lens refraction retinas the lenses correspond to each other, the circular central optical zone (CV)2 of the lens surface corresponds to the Central Retina (CR), the far optical zone (SV)3 at the peripheral part of the lens surface corresponds to the lower retina (IR), the inner optical zone (NV)5 of the lens surface corresponds to the outer retina (TR), the near optical zone (IV)4 of the lens surface corresponds to the upper retina (SR), and the outer optical zone (TV)6 of the lens surface corresponds to the inner retina (NR), in the design, in order to set the inner optical central optical zones 2 of different sizes or the inner and outer optical zones 5 and 6 of different sizes, the circumferential azimuth angles of all the zones can be designed in a variable way, for example, the angular range of the far light zone 3 is enlarged, the angular range of the near light zone 4 is reduced, and the angular range of the inner light zone 5 is equal to the angular range of the outer light zone 6, so that the myopia correction can be performed on the periphery of the central optical zone 2, and in the specific implementation, the angular range of each light zone can be adjusted according to the actual diopter number of glasses of a wearer;
further, as shown in fig. 1 and 3, the out-of-focus spectacle lens 1 includes a spectacle lens body 12, a far sector groove is formed on the spectacle lens body 12, a far lens 7 is adapted to be used at far, a far optical area 3 is formed on the far lens 7, a near sector groove is formed on the spectacle lens body 12, a near lens 8 is adapted to be used at near, a near optical area 4 is formed on the near lens 8, an inner sector groove is formed on the spectacle lens body 12, an inner lens 9 is adapted to be used at inner side, an inner optical area 5 is formed on the inner side, an outer sector groove is formed on the spectacle lens body 12, an outer lens 10 is adapted to be used at outer side, an outer optical area 6 is formed on the outer side lens 10, a central optical area 2 is arranged in the middle of the spectacle lens body 12, the far lens 7, the near lens 8, the inner side lens 9 and the outer side lens 10 on the out-of-focus spectacle lens 1 are all of split structure, the lens is fixed on the lens main body 12 by splicing and bonding, thereby forming a defocusing lens 1, a far sector groove, a near sector groove, an inner sector groove and an outer sector groove are communicated in sequence to form a closed ring, and a positioning plate 11 is arranged in the closed circular ring, the positioning plate 11 is used for positioning the position of any one of the far lens 7, the near lens 8, the inner lens 9 and the outer lens 10 on the defocusing spectacle lens 1, in the specific implementation, the positioning plate 11 can be arranged on the critical line of the far light area 3 and the inner light area 5, or on the critical line between the far light region 3 and the outer light region 6, or on the critical line between the inner light region 5 and the near light region 4, or on the critical line between the outer light area 6 and the near light area 4, the position of one lens is quickly positioned by the positioning sheet 11, and then installing the other lenses correspondingly, so that the corresponding lenses are accurately installed in the corresponding light areas.
Furthermore, the sidewall of the out-of-focus spectacle lens 1 is provided with a glue injection hole, the glue injection hole is communicated with the closed circular ring, resin glue is injected into the closed circular ring through the glue injection hole, the resin glue flows into each lens under the action of pressure, so that each lens is bonded on the spectacle lens main body 12 through the resin glue, the two sides of the far spectacle lens 7 and the near spectacle lens 8 are both provided with arc-shaped bulges 13, the arc-shaped bulges 13 are matched with the arc surface of the central optical area 2, bonding gaps are generated between the far spectacle lens 7 and the inner spectacle lens 9, bonding gaps are generated between the inner spectacle lens 9 and the near spectacle lens 8, bonding gaps are generated between the near spectacle lens 8 and the outer spectacle lens 10, and bonding gaps are generated between the outer spectacle lens 10 and the far spectacle lens 7 through the arc-shaped bulges 13, so that the resin glue flows into the bonding gaps, thereby improving the bonding effect; corresponding fan-shaped grooves are formed in the spectacle lens main body 12 according to the curvature radius of each lens, so that after each lens is assembled on the spectacle lens main body 12, the surface of each lens is smoothly transited by the structural resin glue, and the fall between the lenses is reduced.
In combination with the split structure of the out-of-focus spectacle lens in the first embodiment, a method for preparing the spectacle lens with the out-of-focus function is provided, which comprises the following steps:
s1, obtaining the out-of-focus spectacle lens 1 by adopting a mold;
s2, manufacturing a far lens 7 blank, a near lens 8 blank, an inner side lens 9 blank and an outer side lens 10 blank with corresponding diopter by adopting a mould processing mode; because different dioptric materials are adopted among the far lens 7, the near lens 8, the inner lens 9 and the outer lens 10, the whole processing of a mold is difficult to adopt, otherwise, the melted materials are mixed in the mold in a circulating way, so that the required defocusing spectacle lens 1 cannot be manufactured, and after the far lens 7, the near lens 8, the inner lens 9 and the outer lens 10 are arranged in a split way, the corresponding dioptric lenses can be obtained through respective processing, so that the defocusing spectacle lens is simpler and quicker to manufacture;
s3, polishing and trimming the blank of the far lens 7, the blank of the near lens 8, the blank of the inner lens 9 and the blank of the outer lens 10;
s4, assembling the distance lens 7, the near lens 8, the inner lens 9 and the outer lens 10 to the out-of-focus spectacle lens 1;
s5, injecting resin glue into the out-of-focus spectacle lens 1 through the glue injection hole, and adhering the far lens 7, the near lens 8, the inner lens 9 and the outer lens 10 to the out-of-focus spectacle lens 1 to form a complete spectacle lens;
and S6, performing fine grinding on the surface of the spectacle lens.
Embodiment two, as shown in fig. 1, 4 and 5, an eyeglass lens with out-of-focus function comprises an out-of-focus eyeglass lens 1, wherein a central optical zone 2 is arranged on the out-of-focus eyeglass lens 1, a far light zone 3, a near light zone 4, an inner light zone 5 and an outer light zone 6 are arranged on the out-of-focus eyeglass lens 1, the far light zone 3 and the near light zone 4 are respectively located above and below the central optical zone 2, and the inner light zone 5 and the outer light zone 6 are respectively located at two sides of the central optical zone 2; the angle range of the far optical area 3 is a sector area of 30 degrees to 150 degrees along the counterclockwise direction of the horizontal radial line HM of the central optical area 2, the angle range of the near optical area 4 is a sector area of 45 degrees to 135 degrees along the clockwise direction of the horizontal radial line HM of the central optical area 2, two sector areas are formed between the far optical area 3 and the near optical area 4, and the two sector areas are an inner optical area 5 and an outer optical area 6 respectively; as shown in fig. 4, the out-of-focus spectacle lens 1 comprises a refractive compensation layer 15, a functional layer 16 and a refractive correction layer 17, wherein the functional layer 16 is positioned between the refractive compensation layer 15 and the refractive correction layer 17, one surface of the refractive compensation layer 15 far away from the functional layer 16 is a convex surface, one surface of the refractive correction layer 17 far away from the functional layer 16 is a concave surface, the middle part of the functional layer 16 is provided with a central optical area 2, the functional layer 16 is provided with a plurality of convex surfaces 18 and a plurality of concave surfaces 19, the plurality of convex surfaces 18 form a continuous annular structure, the plurality of concave surfaces 19 form a continuous annular structure, and the convex surfaces 18 and the concave surfaces 19 are arranged in a staggered mode along the radial direction to form a continuous wave-shaped structure; in specific implementation, the powers of the convex surface 18 and the concave surface 19 in the far optical zone 3 are equal to the power of the far optical zone 3, the powers of the convex surface 18 and the concave surface 19 in the near optical zone 4 are equal to the power of the near optical zone 4, the powers of the convex surface 18 and the concave surface 19 in the inner optical zone 5 are equal to the power of the inner optical zone 5, and the powers of the convex surface 18 and the concave surface 19 in the outer optical zone 6 are equal to the power of the outer optical zone 6, for example, the positive addition value of the power of the far optical zone 3 to the power of the central optical zone 2 is + 0.50D-3.00D; the sum of the dioptric power of the near optical zone 4 to the dioptric power of the central optical zone 2 is +0.10D to 3.50D; the power of the inner optical zone 5 is +0.50D to 3.50D relative to the positive value of the power of the central optical zone 2; the refractive power of the outer optical zone 6 is +0.2D to 2.50D with respect to the positive addition value of the refractive power of the central optical zone 2, the refractive powers of the convex surface 18 and the concave surface 19 of the functional layer 16 in the distance optical zone 3 are +0.50D to 3.00D with respect to the positive addition value of the refractive power of the central optical zone 2, the refractive powers of the convex surface 18 and the concave surface 19 of the functional layer 16 in the near optical zone 4 are +0.10D to 3.50D with respect to the positive addition value of the refractive power of the central optical zone 2, the refractive powers of the convex surface 18 and the concave surface 19 of the functional layer 16 in the inner optical zone 5 are +0.50D to 3.50D with respect to the positive addition value of the refractive power of the central optical zone 2, the refractive powers of the convex surface 18 and the concave surface 19 of the functional layer 16 in the outer optical zone 6 are +0.20D to 2.50D with respect to the positive addition value of the refractive power of the central optical zone 2, and the spectacle lenses are separately provided along the thickness direction of the central optical zone 1, the refractive power of each light area meets the design requirement through the functional layer 16, specifically, the diameters of the concave surface 19 and the convex surface 18 are kept consistent, the refractive power of the concave surface 19 and the convex surface 18 is changed by changing the convex arc length of the concave surface 19 and the convex surface 18, the refractive power of the corresponding light area is further adjusted, the refractive power of the functional layer is changed by changing the curvature radius of the concave surface 19 and the convex surface 18, the refractive power of the corresponding light area can be adjusted, parallel light rays are scattered through the concave surface 18 and are subjected to combined refraction through the inner surface of the refraction correction layer 17 to finally form an image on the retina, the image is a correction area, the parallel light rays are refracted through the convex surface 18 and are subjected to combined refraction through the inner surface of the refraction correction layer 17 to finally form an image in front of the retina, the image is a defocusing area, and through the arrangement, the parallel curves respectively realize the change of the light refraction position and the focus position according to the set zigzag requirements of the convex surface 18 and the concave surface 19, effectively realizes the correction of hypermetropia defocus and ametropia.
Further, the functional layer 16 is made of resin, the melting point of the resin is low, so that the curing and forming are facilitated, meanwhile, the materials of the refractive compensation layer 15 and the refractive correction layer 17 are the same, the melting point temperature of the materials is higher than that of the resin, the subsequent processing and forming are facilitated, and the specific processing mode is as follows:
aiming at the second embodiment, the preparation method of the spectacle lens with the out-of-focus function is provided, and comprises the following steps:
s1, manufacturing the refraction compensation layer 15 and the refraction correction layer 17; as shown in FIG. 5, a mold space 14 is formed inside the mold, one inner wall of the mold space 14 is provided with a cambered surface adapted to the convex surface of the refraction compensation layer 15, the other symmetrical inner wall is provided with a cambered surface adapted to the concave surface of the refraction compensation layer 17, the middle of the mold is provided with a functional molding part, the middle of the functional molding part is provided with an optical surface, thereby forming a central optical zone 2 in the center of the functional layer, wherein both end surfaces of the functional forming part are provided with a plurality of convex parts 20 and a plurality of concave parts 21, the plurality of convex parts 20 form a continuous annular structure, the plurality of concave parts 21 form a continuous annular structure, each convex part 20 and each concave part 21 are staggered along the radial direction to form a continuous wave-shaped structure, a molding raw material for the out-of-focus spectacle lens is injected into the mold space 14 through the injection hole of the mold, thereby forming a semi-finished out-of-focus spectacle lens having an installation space for the functional layer 16 therein;
s2, taking the semi-finished product of the afocal spectacle lens as a functional layer manufacturing mold for forming the functional layer 16 in the installation space; placing the semi-finished defocused spectacle lens into a shaping die, wherein the shaping die is divided into an upper die and a lower die, the shape of the inner space of the shaping die is matched with the outer part of the semi-finished defocused spectacle lens, a die injection hole in the shaping die is communicated with the mounting space, resin is injected into the mounting space through the die injection hole in the shaping die, and a functional layer is formed in the mounting space of the semi-finished defocused spectacle lens after curing to prepare a blank of the defocused spectacle lens; in specific implementation, the refractive compensation layer 15 and the refractive correction layer 17 are made of the same material, so that the refractive compensation layer 15 and the refractive correction layer 17 can be formed by molding at the same time in step S1, and meanwhile, the melting point of the material of the refractive compensation layer 15 is greater than that of the resin, so that the melted resin does not melt the refractive compensation layer 15 when the functional layer 16 is formed, and because the shape of the inner space of the shaping mold is matched with the outer part of the defocused spectacle lens blank, even if the refractive compensation layer 15 and the refractive correction layer 17 are softened by the injection of the resin, the outer shapes of the refractive compensation layer 15 and the refractive correction layer 17 are not affected, and the processing quality of the defocused spectacle lens is ensured;
and S3, finely grinding the defocusing spectacle lens blank in the step S2 to form a defocusing spectacle lens 1.
In conclusion, the utility model provides two structural embodiments of the split type out-of-focus spectacle lens 1, the embodiment has low requirements on the mold, the mold is simple to manufacture, but has high requirements on assembly, and assembly errors and processing errors of various lenses exist; in the second embodiment, the functional forming part required by the mold is arranged in the mold, and the plurality of convex parts 20 and the plurality of concave parts 21 are arranged on the functional forming part and used for manufacturing the functional layer, so that the manufacturing of the mold is difficult, but the integral out-of-focus spectacle lens can be indirectly formed, the assembling steps of the out-of-focus spectacle lens are reduced, the assembling error and the processing error of each lens are eliminated, and the precision of the out-of-focus spectacle lens 1 is higher; therefore, a user can select out-of-focus spectacle lenses with different split structures according to specific conditions, and the out-of-focus spectacle lens 1 is manufactured according to a corresponding preparation method.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. The spectacle lens with the out-of-focus function is characterized by comprising a split type out-of-focus spectacle lens (1), wherein a central optical area (2) is arranged on the out-of-focus spectacle lens (1), a far optical area (3), a near optical area (4), an inner optical area (5) and an outer optical area (6) are arranged on the out-of-focus spectacle lens (1), the far optical area (3) and the near optical area (4) are respectively positioned above and below the central optical area (2), and the inner optical area (5) and the outer optical area (6) are respectively positioned at two sides of the central optical area (2);
the angle range of the far light area (3) is a fan-shaped area of 30-150 degrees along the counterclockwise direction of a horizontal radial line (HM) of the central optical area (2), the angle range of the near light area (4) is a fan-shaped area of 45-135 degrees along the clockwise direction of the horizontal radial line (HM) of the central optical area (2), two fan-shaped areas are formed between the far light area (3) and the near light area (4), and the two fan-shaped areas are an inner light area (5) and an outer light area (6) respectively.
2. The spectacle lens with out-of-focus function as claimed in claim 1, wherein the out-of-focus spectacle lens (1) comprises a spectacle lens body (12), wherein a far sector groove is formed on the spectacle lens body (12), wherein a far lens (7) is fitted in the far sector groove, wherein the far lens (7) forms the far optical area (3), wherein a near sector groove is formed on the spectacle lens body (12), wherein a near lens (8) is fitted in the near sector groove, wherein the near lens (8) forms the near optical area (4), wherein an inner sector groove is formed on the spectacle lens body (12), wherein an inner lens (9) is fitted in the inner sector groove, wherein the inner lens (9) forms the inner optical area (5), wherein an outer sector groove is formed on the spectacle lens body (12), wherein an outer lens (10) is fitted in the outer sector groove, the outer lens (10) forms the outer light zone (6).
3. The spectacle lens with out-of-focus function according to claim 2, characterized in that the distance segment, the near segment, the inner segment and the outer segment are sequentially communicated to form a closed ring, and a positioning plate (11) is arranged in the closed ring, wherein the positioning plate (11) is used for positioning the position of any one of the distance lens (7), the near lens (8), the inner lens (9) and the outer lens (10) on the out-of-focus spectacle lens (1).
4. The spectacle lens with out-of-focus function as claimed in claim 3, wherein the side wall of the out-of-focus spectacle lens (1) is provided with a glue injection hole, and the glue injection hole is communicated with the closed ring.
5. The ophthalmic lens with defocus function as claimed in claim 4, wherein the far lens (7) and the near lens (8) are provided with an arc-shaped protrusion (13) on both sides, the arc-shaped protrusion (13) fitting the arc of the central optical zone (2).
6. The spectacle lens with out-of-focus function as claimed in claim 1, the out-of-focus spectacle lens (1) comprises a refraction compensation layer (15), a functional layer (16) and a refraction correction layer (17), the functional layer (16) is located between the refractive compensation layer (15) and the refractive correction layer (17), the surface of the refraction compensation layer (15) far away from the functional layer (16) is a convex surface, the surface of the refraction correction layer (17) far away from the functional layer (16) is a concave surface, the functional layer (16) is provided with a plurality of convex surfaces (18) and a plurality of concave surfaces (19), the convex surfaces (18) form a continuous annular structure, the concave surfaces (19) form a continuous annular structure, and the convex surfaces (18) and the concave surfaces (19) are arranged in a staggered mode in the radial direction to form a continuous wave-shaped structure.
7. The spectacle lens with out-of-focus function as recited in claim 6, wherein the functional layer (16) is made of a resin material.
8. The method for preparing an eyeglass with defocus function as claimed in any one of claims 1 to 5, comprising the steps of:
s1, obtaining a spectacle lens main body (12) by adopting a mould;
s2, manufacturing a distance lens (7) blank, a near lens (8) blank, an inner side lens (9) blank and an outer side lens (10) blank with corresponding diopter by adopting a mould processing mode;
s3, polishing and trimming the blank of the far lens (7), the blank of the near lens (8), the blank of the inner lens (9) and the blank of the outer lens (10);
s4, assembling the far lens (7), the near lens (8), the inner lens (9) and the outer lens (10) on the out-of-focus spectacle lens (1);
s5, injecting resin glue into the out-of-focus spectacle lens (1) through the glue injection hole, and adhering the far lens (7), the near lens (8), the inner lens (9) and the outer lens (10) to the out-of-focus spectacle lens (1) to form a complete spectacle lens;
and S6, performing fine grinding on the surface of the spectacle lens.
9. The method for preparing an eyeglass with defocus function as claimed in any one of claims 6 to 7, comprising the steps of:
s1, manufacturing a refraction compensation layer (15) and a refraction correction layer (17); a mould space (14) is formed in the mould, a functional forming part is arranged in the middle of the mould, a plurality of convex parts (20) and a plurality of concave parts (21) are arranged on two end faces of the functional forming part, the plurality of convex parts (20) form a continuous annular structure, the plurality of concave parts (21) form a continuous annular structure, the convex parts (20) and the concave parts (21) are arranged in a staggered mode along the radial direction to form a continuous wave-shaped structure, a defocusing spectacle lens forming raw material is injected into the mould space (14) through an injection hole in the mould, so that a defocusing spectacle lens semi-finished product is formed, and an installation space of a functional layer (16) is formed in the defocusing spectacle lens semi-finished product;
s2, taking the semi-finished product of the afocal spectacle lens as a functional layer manufacturing mold for forming a functional layer (16) in the installation space; placing the semi-finished defocused spectacle lens in a shaping die, wherein the shape of the inner space of the shaping die is matched with the outer part of the semi-finished defocused spectacle lens, a die injection hole in the shaping die is communicated with the installation space, resin is injected into the installation space through the die injection hole in the shaping die, and a functional layer is formed in the installation space of the semi-finished defocused spectacle lens after curing to prepare a blank of the defocused spectacle lens;
s3, finely grinding the out-of-focus spectacle lens blank in the step S2 to form an out-of-focus spectacle lens (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322334.7A CN114415394A (en) | 2021-11-09 | 2021-11-09 | Spectacle lens with defocusing function and preparation method |
| PCT/CN2022/129270 WO2023083073A1 (en) | 2021-11-09 | 2022-11-02 | Spectacle lens having defocusing function and preparation method therefor |
| TW111142423A TWI821007B (en) | 2021-11-09 | 2022-11-07 | Spectacle lens with defocusing function and process for preparing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111322334.7A CN114415394A (en) | 2021-11-09 | 2021-11-09 | Spectacle lens with defocusing function and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114415394A true CN114415394A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111322334.7A Pending CN114415394A (en) | 2021-11-09 | 2021-11-09 | Spectacle lens with defocusing function and preparation method |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN114415394A (en) |
| TW (1) | TWI821007B (en) |
| WO (1) | WO2023083073A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023083073A1 (en) * | 2021-11-09 | 2023-05-19 | 阿尔玻科技有限公司 | Spectacle lens having defocusing function and preparation method therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116699871B (en) * | 2023-05-29 | 2023-11-10 | 江苏全真光学科技股份有限公司 | Multi-point defocused color-changing spectacle lens and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001021846A (en) * | 1999-07-08 | 2001-01-26 | Sota Suzuki | Progressive focus lens for spectacles and its production as well as spectacles using this progressive focus lens for spectacles |
| US20030142265A1 (en) * | 2002-01-31 | 2003-07-31 | Opticlear Inc. | Progressive lens with reduced distortion |
| CN105785589A (en) * | 2016-05-10 | 2016-07-20 | 段亚东 | Four-quadrant-region peripheral out-of-focus frame glasses lens |
| CN111610643A (en) * | 2019-02-26 | 2020-09-01 | 丹阳佰易视光学眼镜有限公司 | Multi-region composite out-of-focus lens for preventing and controlling myopia development |
| CN112649971A (en) * | 2021-01-28 | 2021-04-13 | 段亚东 | Diffraction slope ring type peripheral out-of-focus spectacle lens |
| CN113341593A (en) * | 2021-07-01 | 2021-09-03 | 阿尔玻科技有限公司 | Spectacle lens with out-of-focus function |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6533416B1 (en) * | 2001-07-20 | 2003-03-18 | Ocular Sciences, Inc. | Contact or intraocular lens and method for its preparation |
| FR2936880B1 (en) * | 2008-10-07 | 2011-03-11 | Essilor Int | MULTIFOCAL OPHTHALMIC GLASS. |
| CN103777368B (en) * | 2014-01-16 | 2018-09-14 | 段亚东 | A kind of wide visual field myopic peripheral defocus spectacle lens |
| KR101870142B1 (en) * | 2016-08-12 | 2018-06-25 | 이성준 | Contact lenses for presbyopia |
| CN107861262B (en) * | 2017-12-10 | 2024-04-09 | 段亚东 | Fan-shaped concentric circle peripheral defocus spectacle lens |
| CN110082932A (en) * | 2019-04-15 | 2019-08-02 | 深圳市明瞳视光科技有限公司 | Trifocal |
| CN114415394A (en) * | 2021-11-09 | 2022-04-29 | 阿尔玻科技有限公司 | Spectacle lens with defocusing function and preparation method |
-
2021
- 2021-11-09 CN CN202111322334.7A patent/CN114415394A/en active Pending
-
2022
- 2022-11-02 WO PCT/CN2022/129270 patent/WO2023083073A1/en unknown
- 2022-11-07 TW TW111142423A patent/TWI821007B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001021846A (en) * | 1999-07-08 | 2001-01-26 | Sota Suzuki | Progressive focus lens for spectacles and its production as well as spectacles using this progressive focus lens for spectacles |
| US20030142265A1 (en) * | 2002-01-31 | 2003-07-31 | Opticlear Inc. | Progressive lens with reduced distortion |
| CN105785589A (en) * | 2016-05-10 | 2016-07-20 | 段亚东 | Four-quadrant-region peripheral out-of-focus frame glasses lens |
| CN111610643A (en) * | 2019-02-26 | 2020-09-01 | 丹阳佰易视光学眼镜有限公司 | Multi-region composite out-of-focus lens for preventing and controlling myopia development |
| CN112649971A (en) * | 2021-01-28 | 2021-04-13 | 段亚东 | Diffraction slope ring type peripheral out-of-focus spectacle lens |
| CN113341593A (en) * | 2021-07-01 | 2021-09-03 | 阿尔玻科技有限公司 | Spectacle lens with out-of-focus function |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023083073A1 (en) * | 2021-11-09 | 2023-05-19 | 阿尔玻科技有限公司 | Spectacle lens having defocusing function and preparation method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023083073A1 (en) | 2023-05-19 |
| TW202328770A (en) | 2023-07-16 |
| TWI821007B (en) | 2023-11-01 |
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