CN101196618A - Glasses lens for correcting eyesight - Google Patents
Glasses lens for correcting eyesight Download PDFInfo
- Publication number
- CN101196618A CN101196618A CNA2007101438460A CN200710143846A CN101196618A CN 101196618 A CN101196618 A CN 101196618A CN A2007101438460 A CNA2007101438460 A CN A2007101438460A CN 200710143846 A CN200710143846 A CN 200710143846A CN 101196618 A CN101196618 A CN 101196618A
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- CN
- China
- Prior art keywords
- change section
- lens
- user
- recess
- eyesight
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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
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- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
A glasses lens for correcting eyesight is disclosed, which comprises a concave part which has a concave surface at its center portion; and a varying part which is outwardly extended from an edge of the curved surface with a certain curve, with the varying part being formed in a plane shape, with the thickness of the varying part being nonuniform in a circumferential direction, with the use area of the same being varied depending on a user's eyesight, wherein the concave part and varying part are made depending on a user's measured eyesight so that a user's astigmatism can be corrected and are cut in certain shapes and sizes corresponding to the size of a glasses frame and are used as a concave lens.
Description
Technical field
The present invention relates to a kind of eyeglass lens that is used to correct defects of vision, wherein at the eyeglass lens that is used for astigmatism or myopia, border between the edge plane of center concave surface and variation is formed by level and smooth substantially curved surface, and be specifically related to a kind of eyeglass lens that is used to correct defects of vision, wherein the concavees lens that will polish in advance according to the number of degrees of the eyeglass lens that is used for astigmatism or myopia cut and are assembled to frame, and the thickness of concavees lens can significantly reduce, reduce the weight of glasses thus, and the user can or like the required size of freely selecting eyeglass lens according to its style.
Background technology
Usually, vision disorder is divided into astigmatism, myopia and long sight.
In astigmatism, the refracting power of passing the light of cornea on all directions is uneven.The directional light out-focus is in a bit, its reason be since refracting power along with the eyes meridian difference, thereby refractive surface is not in correct sphere.That is, form two or more focuses.Astigmatism is divided into even astigmatism and inhomogeneous astigmatism.Here, evenly astigmatism can be corrected by cylindrical lens.Inhomogeneous astigmatism can't be corrected by glasses, but can correct by contact lens or by corneal graft.
In myopia, under non-adjustment state, directional light focuses on the retina front portion.Cross strong or compare axis oculi with refracting power when long when compare adjustment capability with axiallength, this situation takes place.In this case, focusedimage is unintelligible, and axis oculi is long.In order to overcome the problems referred to above, need utilize concavees lens that focus is postponed.
In long sight, under non-adjustment state, parallel beam focuses on the retina rear portion.When comparing axiallength with adjustment capability when too short or when the refracting power of eyeball front side is too small, usually this situation can appear.Need convex lens to correct the problems referred to above.
The eyeglass lens that is used to correct user's eyesight can be divided into glass lens, plastic lens, polycarbonate lens etc.In addition, glass lens can be further divided into medium refractor, high refractor and superrefraction lens according to their refracting power.Glass lens can be further divided into aspheric surface lens, bifocal, progressive lenses (gradualaccumulation lens), coating lens, spreadlight lens, blocking lens, colour blindness lens and anomalous trichromatism lens and cataract lens.Here, the thickness of eyeglass lens and weight for the user wear the sensation and outward appearance be key factor.
As shown in Figure 5 and Figure 6, be used for astigmatism or myopia the conventional plastic eyeglass lens be to have 80～72mm diameter and certain thickness round billet (circular blank).This round billet at first polishes based on known job operation according to user's measurement eyesight.
In the first polishing lens, the central recess 1 that is formed by the concave surface with certain curvature radius is carried out the second accurately polishing according to user's measurement eyesight.The shape and size of lens are determined according to frame.
Using after brightener and polishing pad (polishing pad) carry out the gloss polishing, make the second polishing lens have gloss, so that the second polishing lens have the optical transmission coefficient of the accurate number of degrees and raising.To deliver to spectacles shop through the final finished lens of checkout procedure, then lens combination be dressed up user's eyeglass lens.
In traditional eyeglass lens, along with the number of degrees rising of the eyeglass lens that is used for astigmatism or myopia, the thickness of lens and weight increase.Therefore, when wearing spectacles, feel heavy and unstable.When the user wants to wear the glasses that have than thin lens, need make the minimized in size of eyeglass lens.In conventional art, can not freely select the size of eyeglass lens based on user's style and hobby.
Since have certain diameter (for example, 80～72mm) and certain thickness some blank should make by multiple tracks technology according to user's eyeglass lens power, so processibility reduces, and unit cost increases.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of eyeglass lens that is used to correct defects of vision, this eyeglass lens can reduce the thickness that glasses weight reduces eyeglass lens simultaneously, improves thus and wears sensation and stability.
Another object of the present invention provides a kind of eyeglass lens that is used to correct defects of vision, and wherein the user can come the style of basis oneself and the size that hobby is freely selected eyeglass lens by the minimize weight that makes eyeglass lens.
Another purpose of the present invention provides a kind of eyeglass lens that is used to correct defects of vision, it can provide excellent outward appearance and product reliability, this is because at the eyeglass lens that is used for astigmatism or myopia, the border between the edge plane of center concave surface and variation is formed by level and smooth substantially curved surface.
To achieve these goals, a kind of eyeglass lens that is used to correct defects of vision is provided, it comprises recess and change section, the described recess heart therein partly has concave surface, and described change section stretches out from the curved edges with specific curvature, described change section forms flat shape, the thickness of described change section upwards is uneven in week, the usable floor area of described change section changes with user's eyesight, wherein said recess and change section are made according to user's measurement eyesight, make the astigmatism to correct the user, and described recess and change section are cut into given shape and corresponding to the size of frame size and be used as concavees lens.
To achieve these goals, a kind of eyeglass lens that is used to correct defects of vision is provided, it comprises recess and change section, the described recess heart therein partly has concave surface, and described change section stretches out from the curved edges with specific curvature, described change section forms flat shape, the thickness of described change section upwards is uniform in week, the usable floor area of described change section changes with user's eyesight, wherein said recess and change section are made according to user's measurement eyesight, make the myopia to correct the user, and described recess and change section are cut into given shape and corresponding to the size of frame size and be used as concavees lens.
Eyeglass lens is by a kind of the making in glass material, plastic material and the makrolon material.
Description of drawings
To understand the present invention better with reference to accompanying drawing, these accompanying drawings only explanation mode by way of example provide, and therefore do not limit the present invention, wherein;
Fig. 1 illustrates the skeleton view that is used to the eyeglass lens of correcting defects of vision according to embodiments of the present invention;
Fig. 2 A is the sectional view of explanation along the eyeglass lens of the line A-A intercepting of Fig. 1;
Fig. 2 B is the sectional view of explanation along the eyeglass lens of the line B-B intercepting of Fig. 1;
Fig. 3 is the skeleton view that the eyeglass lens that is used to correct defects of vision according to another embodiment of the invention is described;
Fig. 4 A is the sectional view of explanation along the eyeglass lens of the line C-C intercepting of Fig. 3;
Fig. 4 B is the sectional view of explanation along the eyeglass lens of the line D-D intercepting of Fig. 3;
Fig. 5 is the skeleton view of the traditional eyeglass lens of explanation; And
Fig. 6 is the sectional view of the eyeglass lens of key diagram 5.
Embodiment
Below describe the preferred embodiments of the invention with reference to the accompanying drawings.
Shown in Fig. 1,2A and 2B, the eyeglass lens that is used to correct defects of vision according to an embodiment of the invention (referring to be used for the eyeglass lens of astigmatism) comprises recess 11 and change section 12, recess 11 make by makrolon material, plastic material or glass material and therein the heart partly have concave surface 10; , change section 12 radially stretches out with the plane of bending shape from the marginal portion of concave surface 10.The thickness of change section 12 upwards is uneven in week.Change section 12 has the usable floor area (sizes of lens) that changes with the eyesight (number of degrees) of suffering from astigmatic user and has the circular outer perimeter surface.Here, recess 11 and change section 12 as required the user of astigmatism eyesight and form, and be cut into given shape and be used as concavees lens.
The radius of curvature R 1 relative radius of curvature R 2 of concave surface 10 greater than the border between recess 11 and the change section 12.The thickness of change section 12a is thinner than the thickness of change section 12b relatively.That is the thickness of thickness＞change section 12a of change section 12b.
Below describe the operation that is used to the eyeglass lens of correcting defects of vision according to embodiments of the present invention with reference to the accompanying drawings.
As shown in Figure 2, measure the user's who suffers from astigmatism eyesight.The user selects the eyeglass lens (concavees lens) corresponding to the eyesight number of degrees of measuring.The selected eyeglass lens that is used for astigmatism cuts according to the shape and size of user's frame.Here, lens comprise recess 11 and change section 12, and recess 11 heart therein partly has concave surface 10, and change section 12 stretches out for the plane and from the edge of concave surface 10 with specific curvature.
Shown in Fig. 2 A and 2B, because the thickness of change section 12 can change according to user's eyesight so comprise the usable floor area (sizes of lens) of the lens that can correct user's eyesight of recess 11 and change section 12 along being uneven circumferentially.
For example, because the thickness of the change section 12 of concavees lens is big, so when wearing these lens, the weak-eyed user may feel under the weather.The thickness of change section 12 can reduce by the diameter that reduces recess 11, thereby can reduce the overall weight of glasses.
In the present invention, owing to do not need to come the concavees lens of round billet are implemented first and second process operations (processing work), therefore can improve processibility according to the eyesight of the user with astigmatism.Because the overall weight of glasses can reduce by the thickness that minimizes lens, therefore the user who is used for the concavees lens of astigmatism can feel better to wear condition and stability, and therefore the eyeglasses-wearing convenience and the reliability of enhancing can be provided for the user.
Because the border between the change section 12 that is formed on the concave surface 10 at concavees lens center and extends along the outward direction of concave surface 10 forms level and smooth curved shape, and the thickness attenuation of change section 12, therefore the user can freely determine the size of eyeglass lens, can reduce the weight of glasses, and the outward appearance of glasses looks good.
Shown in Fig. 3,4A and 4B, the eyeglass lens that is used to correct defects of vision according to another embodiment of the invention (referring to be used for the eyeglass lens of myopia correction) comprises recess 11 and change section 12, recess 11 make by makrolon material, plastic material or glass material and therein the heart partly have concave surface 10, change section 12 extends radially outward to be had with respect to the specific curvature of marginal portion part and forms flat shape.The thickness of change section 12 upwards is uniformly in week, and the thickness of change section 12c is identical with the thickness of change section 12d.Usable floor area (sizes of lens) changes with the user's who suffers from myopia eyesight (number of degrees).Its external peripheral surface is circular.
Recess 11 and change section 12 bases want the user's of myopia correction measurement eyesight to make, and cut based on the given shape and the size of frame, and as concavees lens.
Here, compare with the radius of curvature R 2 on border between recess 11 and the change section 12, the radius of curvature R 1 of concave surface 1 is bigger relatively.
The operation of the eyeglass lens that is used to correct defects of vision is according to another embodiment of the invention described below with reference to accompanying drawings.
As shown in Figure 4, measure the user's who suffers from myopia eyesight.The user selects corresponding to the eyeglass lens (concavees lens) of measuring the eyesight number of degrees.The selected eyeglass lens that is used for myopia correction according to the shape and size cutting of user's frame.Here, lens comprise recess 11 and change section 12, and recess 11 heart therein partly has concave surface 10, and change section 12 stretches out for the plane and from the edge of concave surface 10 with specific curvature.
Shown in Fig. 4 A and 4B,, can change according to user's eyesight so comprise the usable floor area (sizes of lens) of the lens that can correct user's eyesight of recess 11 and change section 12 because the thickness of change section 12 upwards is uniformly in week.
As mentioned above, the eyeglass lens that is used to correct defects of vision according to the preferred embodiment of the invention has the following advantages.
In the present invention, because the thickness of the weight of the glasses eyeglass lens by reducing to be used for astigmatism or myopia reduces, that therefore can improve glasses wears sensation and stability.
The user can be by the weight that minimizes eyeglass lens freely determines the size of eyeglass lens based on the style of oneself and hobby, improves the adaptability of product thus.
Because the core of the lens that formed by concave surface and the border that forms between the change section (marginal portion) of flat shape are formed by smooth surface, so when the user wore glasses of the present invention, outward appearance looked well, and improved reliability.
Because under the situation that does not deviate from spirit of the present invention or essential characteristic, the present invention can adopt various ways to come imbody, should also be appreciated that, unless otherwise, the foregoing description is not limited by the details of any aforementioned description, and should in by the spirit and scope of the present invention that claims limited, carry out extensive interpretation, therefore drop in the set of claim and the border or interior all changes and the change of equivalent scope in these set and the border is considered as being comprised by claims.
Claims (3)
1. eyeglass lens that is used to correct defects of vision comprises:
Recess, described the recess heart therein partly have concave surface; With
Change section, described change section stretches out from the curved edges with specific curvature, and described change section forms flat shape, and the thickness of described change section is along being uneven circumferentially, and the usable floor area of described change section changes with user's eyesight,
Wherein said recess and change section are made according to user's measurement eyesight, thus the astigmatism that can correct the user, and described recess and change section cut into given shape and corresponding to the size of frame size, and as concavees lens.
2. eyeglass lens that is used to correct defects of vision comprises:
Recess, described the recess heart therein partly have concave surface; With
Change section, described change section stretches out from the curved edges with specific curvature, and described change section forms flat shape, and the thickness of described change section is along circumferentially being uniform, and the usable floor area of described change section changes with user's eyesight,
Wherein said recess and change section are made according to user's measurement eyesight, thus the myopia that can correct the user, and described recess and change section cut into given shape and corresponding to the size of frame size, and as concavees lens.
3. according to the lens of claim 1 or 2, wherein said eyeglass lens is by a kind of the making in glass material, plastic material and the makrolon material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060124964 | 2006-12-08 | ||
| KR1020060124964A KR20080053041A (en) | 2006-12-08 | 2006-12-08 | Glasses lens for make correction visual |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101196618A true CN101196618A (en) | 2008-06-11 |
Family
ID=39492240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101438460A Pending CN101196618A (en) | 2006-12-08 | 2007-08-03 | Glasses lens for correcting eyesight |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR20080053041A (en) |
| CN (1) | CN101196618A (en) |
| WO (1) | WO2008069393A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137611A (en) * | 2015-07-13 | 2015-12-09 | 苏州苏大明世光学股份有限公司 | Toroidal astigmatic glasses lens and preparation method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE899955A (en) * | 1984-06-19 | 1984-10-15 | Optimed Nv | METHOD FOR PRODUCING A GLASS FOR MYOPES. |
| JPS6450012A (en) * | 1987-08-21 | 1989-02-27 | Asahi Glass Co Ltd | Spectacle lens with small aberration |
| JPH09318915A (en) * | 1996-05-24 | 1997-12-12 | Murai:Kk | Spectacles |
| JP2000047144A (en) * | 1998-07-31 | 2000-02-18 | Nikon Corp | Spectacle lens |
-
2006
- 2006-12-08 KR KR1020060124964A patent/KR20080053041A/en not_active Application Discontinuation
-
2007
- 2007-07-19 WO PCT/KR2007/003498 patent/WO2008069393A1/en active Application Filing
- 2007-08-03 CN CNA2007101438460A patent/CN101196618A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137611A (en) * | 2015-07-13 | 2015-12-09 | 苏州苏大明世光学股份有限公司 | Toroidal astigmatic glasses lens and preparation method thereof |
| CN105137611B (en) * | 2015-07-13 | 2018-03-23 | 苏州苏大明世光学股份有限公司 | A kind of Super-torus astigmatic glasses lens and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008069393A1 (en) | 2008-06-12 |
| KR20080053041A (en) | 2008-06-12 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |