CN205450481U - Lens advances gradually in thermoplasticity - Google Patents
Lens advances gradually in thermoplasticity Download PDFInfo
- Publication number
- CN205450481U CN205450481U CN201620176591.2U CN201620176591U CN205450481U CN 205450481 U CN205450481 U CN 205450481U CN 201620176591 U CN201620176591 U CN 201620176591U CN 205450481 U CN205450481 U CN 205450481U
- Authority
- CN
- China
- Prior art keywords
- arc
- face
- gradual change
- sphere
- degrees
- 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.)
- Expired - Fee Related
Links
- 230000000750 progressive effect Effects 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000004438 eyesight Effects 0.000 abstract description 3
- 230000005043 peripheral vision Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000007 visual effect Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 210000005252 bulbus oculi Anatomy 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000001508 eye Anatomy 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 201000010041 presbyopia Diseases 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010020675 Hypermetropia Diseases 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 208000012886 Vertigo Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000004305 hyperopia Effects 0.000 description 1
- 201000006318 hyperopia Diseases 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Eyeglasses (AREA)
Abstract
The utility model relates to a lens, especially a lens advances gradually in thermoplasticity. The lateral surface of lens is the sphere, and the medial surface is compound sphere, compound sphere including the face looked squarely, look nearly face, gradual change corridor, look squarely the face and look nearly between the face through the gradual change corridor being connected formation complex sphere. The change of the actual luminosity of above -mentioned structure is little, greatly increased the field of vision of lens, the deflection diminishes equally greatly to it still arouses certain discomfort or tired sense to have reduced to wear for a long time, simultaneously improve the not good problem of peripheral vision effect that far and near usefulness exists step by step by a wide margin, need not to test and join in marriage, need not the adaptation, had the depth of field and field range during the indoor activity concurrently, had the action of frequent excision to take place never again, reduced sensitive crowd's adaptation time.
Description
Technical field
This utility model relates to a kind of eyeglass, progressive lenses in especially a kind of thermoplasticity.
Background technology
People is to after 40, the problem that eyes arise that presbyopia, and presbyopia is normal physiological phenomenon, can aggravate along with the increase at age, cause reading to be write all and can produce difficulty, the distance of reading is drawn more remote and more remote, if some sight lines of dark lighting of reading just thicken, for the problems referred to above, presbyopic glasses are occurred in that on market, and the in-plant visual field is apparent from 30 centimeters of presbyopic glasses, if wanting to take a fancy to (such as TV) at a distance to take off one's glasses or simply bow one's head, the most pretty troublesome, glasses also easy fatigue has increased the weight of the injury to eyes, for the problems referred to above, occur in that three kinds of presbyopic lenses are in the majority in the market:
1, tradition presbyopic glasses.Maximum problem is just a lack of the sensation of the depth of field, even if novel aspheric surface presbyopic glasses, although having widened peripheral visual field, but still can disturb wearer depending on the remote problem lacking the depth of field, even if the dynamic moving in indoor little scope, such as: stair activity, the object looked up outside 1 meter, all can produce fuzzy or spinning sensation and have to frequently depend on the action extracing glasses.
2, Bifocal lenses.This eyeglass is that eyeglass is divided into two, and the above is far with eyeglass, is presented herein below and closely uses eyeglass.Although remote near all seeing, can middle place is the fuzzyyest.And just look at the disconnected gear of thing, spatial impression is held and is difficult to, inconvenience of walking.Lens surface has obvious line, and it is aging for allowing people know at a glance, has gone up the age, there is potential safety hazard.
3, the most progressive.This eyeglass solves problem out of stock, remote in closely all see clear.Although can solve the problem that and seeing the problem far seeing nearly two mirror unifications, the problem solving the depth of field, but, owing to this type of eyeglass is all the resin mirror with heat curing-type, on the one hand manufacturing cost is high, and can not reclaim, it is positioned over the outer surface of eyeglass additionally, due to most of progressive design, causes adjustable range excessive, visual field restricted width, and owing to the production technology (glass mold and elastic clamping collar etc.) of resin lens limits, it is impossible to well and control its diopter and position easily.Simultaneously because its marketing method surely joined, existence and progressive passage to blind area, both sides are paid close attention to few, closely visual field relative narrowness in causing.Another problem of ordinary hot curable type progressive lenses be optometry assembling process complex and for part sensitive group adaptive time longer, Qie Peijing center is not in geometric center, therefore is difficult to determine Pei Jing center, causes follow-up assembling process more complicated.
Utility model content
The purpose of this utility model is, it is provided that one is cheap for manufacturing cost and material is recyclable, and the visual field is wider, progressive lenses and processing method thereof in the more preferable thermoplasticity of stability.
This utility model solves its technical problem and be the technical scheme is that progressive lenses processing method in a kind of thermoplasticity, and its method is as follows: the first step, determines the geometric center of rapidoprint, and pinpoints on mould；Second step, design obtains looking squarely the number of degrees in district, and on mould, fixed point looks squarely the optical center in district；3rd step, design obtains the number of degrees of near reading range, pinpoints the optical center of near reading range on mould；4th step, poor according to the number of degrees of near reading range and the number of degrees of near reading range, it is calculated the radian of gradual change corridor, and on mould, designs corresponding radian, form a composite die face；5th step, is carried out in mould
PC or AC material injection molding, the medial surface at eyeglass forms composite sphere, obtains the finished product of eyeglass.
Of the present utility model it is further arranged to: the difference of the number of degrees of near reading range and the number of degrees looking squarely district adds the light number of degrees under constituting, and adds light number of degrees constant interval between 0.60Diopter to 3.00Diopter.
Of the present utility model it is further arranged to: on the premise of astigmatism (post mirror degree) is less than 0.25D in gradual change corridor length that described gradual change corridor determines in design and corridor district, complete required ADD light varience requirement.
In being made by said method, progressive lenses uses the lens materials (PC or AC material) of thermoplastics type to be molded；Eyeglass inner surface is progressive adds light design；Three Ceng Guang districts (looking squarely district, gradual change corridor, near reading range) are set, make eyeglass transition more releive, and under to add the light number of degrees the least, then field range is the biggest, efficiently solves the high-efficiency environment friendly of injection mo(u)lding, the problem in the interior progressive comfortable wide visual field；Consider regard myopia and look squarely the eyeball moving track in district, gradual change corridor reasonable in design, be more easy to position, geometric center is Pei Jing center, making optometry assembling process the simplest, and directly utilize injection principle and be processed, raw material can repeat to recycle, decrease the multiple working procedure of conventional lenses processing simultaneously, not only save production cost, also substantially reduce process time, and accurate positioning, the eyeglass error produced is little, and batch degree of unification is the highest.
Being further arranged to of this utility model solution technical problem: progressive lenses in a kind of thermoplasticity, including eyeglass, the lateral surface that it is characterized in that eyeglass is sphere, medial surface is composite sphere, composite sphere include face of looking squarely, regarding nearly face, gradual change corridor, face of looking squarely, with depending on being connected by gradual change corridor between nearly face, forms composite sphere.
Of the present utility model it is further arranged to: described gradual change corridor is eccentric double arc arc-shaped curved surfaces, it is respectively upper arc and lower arc, upper arc is with to look squarely face corresponding, lower arc is corresponding with regarding nearly face, gradual change corridor with look squarely face, regard the connecting portion in nearly face as continuous print arc, upper arc arc top and lower arc arc top lateral bend in gradual change corridor, lower arc offsets to bridge of the nose direction, forms eccentric double arc arc-shaped curved surface.
Of the present utility model being further arranged to: the height of described gradual change corridor is 13-15mm, lower arc offsets 1.5-2.5mm to bridge of the nose direction.
Of the present utility model it is further arranged to: the difference of the number of degrees of near reading range and the number of degrees looking squarely district adds the light number of degrees under constituting, and adds light number of degrees constant interval between 0.60Diopter to 3.00Diopter.
The actual light varience of said structure is little, considerably increases the visual field of eyeglass, and deflection diminishes the most significantly, thus decreases to wear for a long time and still cause certain discomfort or feeling of fatigue；Significantly improve the far and near peripheral vision poor effect problem of progressive existence simultaneously, it is not necessary to test join, without adaptation, have the depth of field and field range during indoor activity concurrently, have frequent excision action to occur never again, reduce the adaptive time of sensitive group.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment.
Detailed description of the invention
Progressive lenses processing method in this utility model one thermoplasticity, its method is as follows: the first step, determines the geometric center of rapidoprint, and pinpoints on mould；Second step, design obtains looking squarely the number of degrees in district, and on mould, fixed point looks squarely the optical center in district；3rd step, design obtains the number of degrees of near reading range, pinpoints the optical center of near reading range on mould；4th step, poor according to the number of degrees of near reading range and the number of degrees of near reading range, it is calculated the radian of gradual change corridor, and on mould, designs corresponding radian, form a composite die face；5th step, PC or AC material injection molding is carried out in mould, medial surface at eyeglass forms composite sphere, obtain the finished product of eyeglass, in this utility model, material is mainly polycarbonate (POLYCABNATE, hereinafter referred to as PC) or polymethyl methacrylate (ACYLIC, hereinafter referred to as AC) or polyamide polymer (NYLON, hereinafter referred to as NL), the number of degrees of near reading range add the light number of degrees under the difference composition of the number of degrees looking squarely district, add light number of degrees constant interval between 0.60Diopter to 3.00Diopter, described gradual change corridor in the gradual change corridor length that determines of design and corridor district astigmatism (post mirror degree) less than on the premise of 0.25D, complete required ADD light varience requirement.
This utility model have employed the mode of mold injection and carries out the processing of eyeglass, so in the case of determining wearer's number of degrees, have only to design the curved surface of correspondence on the mould surface of mould, directly injection just can obtain the eyeglass of correspondence, this processing method, process time is short, low cost, and material can directly recycle, and has the biggest environment protection significance, and composite sphere is arranged on inner surface, therefore the adjustable range for eyeball is near, and amplitude is little, can significantly alleviate the eyeball degree of fatigue of wearer, the change in the visual field is bigger, has therefore widened the visual field.
nullUnderstand with reference to Fig. 1，Progressive lenses in this utility model one thermoplasticity，Including eyeglass 4，The lateral surface of eyeglass 4 is sphere，Medial surface is composite sphere C，Composite sphere C includes face of looking squarely 1、Depending on nearly face 3、Gradual change corridor 2，Look squarely face 1 with depending on being connected by gradual change corridor 2 between nearly face 3，Form composite sphere C，Described gradual change corridor 2 is eccentric double arc arc-shaped curved surface，It is respectively upper arc and lower arc，Upper arc is with to look squarely face corresponding，Lower arc is corresponding with regarding nearly face，Gradual change corridor 2 with look squarely face 1、Regard the connecting portion in nearly face 3 as continuous print arc，Upper arc arc top and lower arc arc top lateral bend in gradual change corridor 2，Lower arc offsets to bridge of the nose direction，Form eccentric double arc arc-shaped curved surface，The height of described gradual change corridor 2 is 13-15mm，Lower arc offsets 1.5-2.5mm to bridge of the nose direction，The number of degrees of near reading range 3 add the light number of degrees under the difference composition of the number of degrees looking squarely district 1，Add light number of degrees constant interval between 0.60Diopter to 3.00Diopter.
A kind of special composite sphere is arranged on the inner surface of eyeglass by said structure, so reduce the eyeglass amplitude of accommodation to eyeball, slow down eyeball tired, the visual zone of regulation is greatly increased, the gradual change corridor utilizing arc connects looks squarely face and regarding nearly face, mild transition, it is an arc change owing to its visual reception of movement locus of eyeball changes, after main vision enters face of looking squarely or regards nearly face, the other light vision of side enter back into correspondence regarding face, just can reach seamless optical transition effect, therefore compound the least and mild in the regulation of correspondence eyeball across changing regarding face when, therefore the fatigue strength of eyeball can be reduced.
The technical solution of the utility model specific requirement is as shown in the table:
Below with hypermetropia+1.00～+3.00 as design example, the design of other number of degrees or other designs of+1.00～+3.00 can be adjusted on the basis of this example
Obviously, above-described embodiment is only used to done citing is clearly described, and not restriction to embodiment.To those of ordinary skill in the art, can also make other changes in different forms on the basis of the above description.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or variation are still in protection domain of the present utility model.
Claims (4)
1. a progressive lenses in thermoplasticity, including eyeglass, it is characterised in that: the lateral surface of eyeglass is sphere, medial surface is composite sphere, composite sphere include face of looking squarely, regarding nearly face, gradual change corridor, look squarely face with depending on being connected by gradual change corridor between nearly face, formed composite sphere.
2. according to progressive lenses in the thermoplasticity described in claim 1, it is characterized in that: described gradual change corridor is eccentric double arc arc-shaped curved surfaces, it is respectively upper arc and lower arc, upper arc is with to look squarely face corresponding, lower arc is corresponding with regarding nearly face, gradual change corridor with look squarely face, regard the connecting portion in nearly face as continuous print arc, upper arc arc top and lower arc arc top lateral bend in gradual change corridor, lower arc offsets to bridge of the nose direction, forms eccentric double arc arc-shaped curved surface.
3. according to progressive lenses in the thermoplasticity described in claim 2, it is characterised in that: the height of described gradual change corridor is 13-15mm, and lower arc offsets 1.5-2.5mm to bridge of the nose direction.
4. according to progressive lenses in the thermoplasticity described in claim 3, it is characterised in that: the number of degrees of near reading range add the light number of degrees under the difference composition of the number of degrees looking squarely district, add light number of degrees constant interval between 0.60Diopter to 3.00Diopter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620176591.2U CN205450481U (en) | 2016-03-08 | 2016-03-08 | Lens advances gradually in thermoplasticity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620176591.2U CN205450481U (en) | 2016-03-08 | 2016-03-08 | Lens advances gradually in thermoplasticity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205450481U true CN205450481U (en) | 2016-08-10 |
Family
ID=56605627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620176591.2U Expired - Fee Related CN205450481U (en) | 2016-03-08 | 2016-03-08 | Lens advances gradually in thermoplasticity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205450481U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589215A (en) * | 2016-03-08 | 2016-05-18 | 李国荣 | Thermoplasticity inner progressive lens and machining method thereof |
| CN113334649A (en) * | 2021-05-31 | 2021-09-03 | 重庆远中近光学科技有限公司 | Machine manufacturing method of full-view arc progressive lens |
-
2016
- 2016-03-08 CN CN201620176591.2U patent/CN205450481U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589215A (en) * | 2016-03-08 | 2016-05-18 | 李国荣 | Thermoplasticity inner progressive lens and machining method thereof |
| CN105589215B (en) * | 2016-03-08 | 2018-09-14 | 李国荣 | Progressive lenses and its processing method in thermoplasticity |
| CN113334649A (en) * | 2021-05-31 | 2021-09-03 | 重庆远中近光学科技有限公司 | Machine manufacturing method of full-view arc progressive lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4606622A (en) | Multi-focal spectacle lens with a dioptric power varying progressively between different zones of vision | |
| JP2655735B2 (en) | Progressive eccentric multifocal contact lens | |
| CN104718488B (en) | For determining the method on the surface including carrier and Fresnel film and the lenses on this surface of inclusion of lenses | |
| US20060170863A1 (en) | Multi-focal ophthalmic lens with base in prism | |
| CA2679977A1 (en) | Multifocal lens having a progressive optical power region and a discontinuity | |
| CA2250616C (en) | Ophthalmic lens | |
| CN205450481U (en) | Lens advances gradually in thermoplasticity | |
| CN102830505A (en) | Preparation method for personalized progressive multi-focus eye lens | |
| CN212112032U (en) | Presbyopic reading spectacle lens with depth of field and preparation mold thereof | |
| CN103246084A (en) | Progressive addition lens with fixed channel length | |
| AU4692300A (en) | Progressive addition lenses with modified channel power profiles | |
| CN105137611B (en) | A kind of Super-torus astigmatic glasses lens and preparation method thereof | |
| CN203786418U (en) | Peripheral defocus eyeglasses with wide field for myopia | |
| CN105589215B (en) | Progressive lenses and its processing method in thermoplasticity | |
| CN208255563U (en) | A kind of composite prisms piece | |
| CN202339452U (en) | Presbyopic glasses capable of seeing long distance and short distance | |
| JPS5988718A (en) | Progressive focusing spectacle lens considering vergence of eye | |
| CN103487948A (en) | Production method of progressive additional high-grade resin lens | |
| CN210427985U (en) | Progressive multi-focus lens and preparation mold thereof, glasses and goggles prepared from progressive multi-focus lens | |
| CA2332237A1 (en) | Method of manufacturing spectacle lenses | |
| CN209992764U (en) | Invisible trifocal spectacle lens | |
| CN207198495U (en) | A kind of antifatigue inner progressive multiple-focus eyeglass | |
| CN101387762A (en) | Partial thin layer multi-focus glasses | |
| CN205809453U (en) | Periphery out of focus three smooth school district lens | |
| CN203101748U (en) | Universal progressive multi-focal lens and mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 325000 Hongqiao City, Wenzhou Province, Jin Huichang Road, six homes, building 401, room 32 Patentee after: Li Guorong Address before: 325000 Hongqiao, Wenzhou, Wenzhou, Jin Huichang Road, six homes, building, room 3, No. 103 Patentee before: Li Guorong |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |