CN202995164U - Blind area-optimized progressive eye lens and mould thereof - Google Patents
Blind area-optimized progressive eye lens and mould thereof Download PDFInfo
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- CN202995164U CN202995164U CN 201220364539 CN201220364539U CN202995164U CN 202995164 U CN202995164 U CN 202995164U CN 201220364539 CN201220364539 CN 201220364539 CN 201220364539 U CN201220364539 U CN 201220364539U CN 202995164 U CN202995164 U CN 202995164U
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Abstract
The utility model provides a blind area-optimized progressive eye lens and a mould thereof. The lens comprises a lens surface with a certain radian, wherein the lens surface comprises a far vision area, a near vision area, a passage and blind areas on the left and the right side, the cylindrical degree of maximal astigmatism in the blind area is lower than a light adding degree of the lens, the maximum value of cylindrical degree is controlled below 96% of the value of the light adding degree, and a distance of maximal astigmatism in a horizontal direction is bigger than 22mm. The cylindrical degree of astigmatism in the blind area is lower than the light adding degree, the maximum value of the cylindrical degree is far away from the lens center. Therefore, middle distance deformation feeling is decreased for a user to use not only in a static state, but also in a dynamic state. The progressive lens of the utility model is used in an external progressive eye lens by a mould, and also in an internal progressive eye lens by a free curve vehicle and house. The utility model further relates to a glass mould or a metal mould for the internal surface progressive eye lens or the external surface progressive eye lens manufactured by a hot melt molding method or a free curve grinding method.
Description
Technical field
The utility model relates to the multifocal ophthalmic lens technical field.Particularly, the utility model relates to position, a kind of blind area away from joining the mirror center, progressive additional lens and mould thereof that middle distance distortion sense descends.
Background technology
Ophthalmic progressive additional lens is used for correction of refractive errors.When glasses wearer's sight line sees through eyeglass top observation thing far away, correct human eye and be in the ability far away of looking of loosening under the state of looking squarely.Sight line sees through the eyeglass bottom and can be used for closely correcting the ability of looking nearly under viewed status.
Ophthalmic progressive additional lens provides on same eyeglass to be looked distance vision acuity and looks near optical power, and lens surface face shape is connected naturally simultaneously, and not only the surface is without visible boundary, and the focal power that draws near changes continuously, middle distance is looked the thing non-cracking, and is both beautiful and practical, is subject to user's favor.
Yet an intrinsic shortcoming is to have the blind area in ophthalmic progressive additional lens, namely has harmful astigmatism.Usually the blind area is positioned at the both sides of eyeglass near reading range, reaches maximum at a certain position.Be referred to as available field of visual depending on far field, near reading range and the passage that connects two zones.Depending on the approximate location of far field I, near reading range II and blind area III referring to accompanying drawing 1.
The focal power of ophthalmic progressive additional lens refers to the refractive power of eyeglass, and focal power is also referred to as the average sphere degree, and the focal power of progressive multi-focus lens is the function of lens position, and the coordinate that eyeglass projects on the plane represents with (x, y), focal power:
Wherein, R
min, R
maxThat lens surface (x, y) is selected minimum, the maximum curvature radius take rice as unit.N is the refractive index of lens materials.
The blind area astigmatism of ophthalmic progressive additional lens is measured with the cylinder degree, and same cylinder degree C is also the function of lens position:
The unit of focal power and cylinder degree all is called diopter, usually represents 1D=1/m with D.
Main gradual change meridian is the sight line when watching to the different distance dead ahead and the intersection point track of lens surface for the glasses wearer.Look a reference point in the far field for looking far point Dp to what watch at a distance, a reference point in the near reading range of closely watching is for looking near point Rp, is called depending near point and the difference of looking the focal power between far point and adds luminosity.Main gradual change meridian tilts to nasal side from looking far point, stops to looking near point.The cylinder degree of having a few on main gradual change meridian is zero, is a center line of available field of visual, overlaps with channel centerline in passage area.Meridian M extends outwardly into the straight line of lens edge by main gradual change meridian and two ends.The mirror center P of joining of eyeglass is being looked on meridian between far point and geometric center, and it is corresponding to the horizontal line of sight direction when wearer's head is honest.Referring to accompanying drawing 1.
Existing ophthalmic progressive additional lens, the cylinder of some blind areas astigmatism is spent greatly, and the main gradual change meridian of some blind areas astigmatism distance is excessively near.This will cause the interference of dynamic vision and reduce middle width apart from vision area and low coverage vision area, cause middle distance visual deformation and the closely difficult adaptation of vision.So the deviser of ophthalmic progressive additional lens makes every effort to reduce harmful astigmatism, enlarges available field of visual.More existing utility model patents disclose their technology for this reason.
U.S. Zhuan Chen company discloses a kind of gradual change type lens at the patent CN1156726C of China's application, employing combines additive graded surface with regression surface mode reduces harmful astigmatism, harmful astigmatism of these lens of patent description is little than conventional lenses, but does not point out that astigmatism is positioned at the position and the degree that reduces astigmatism of both sides.
Chinese patent CN102043258A discloses a kind of optimization method of ophthalmic progressive additional lens astigmatism, Optimization Steps by this utility model is processed, can effectively reduce the maximum astigmatism on initial designs ophthalmic progressive additional lens surface, but only show that in instructions maximum astigmatism reduces 11.2%, position and the size of blind area astigmatism after explanation is not optimized.
The France patent CN1262452A of Essilor International discloses a kind of gradual multi-focusing glasses lens, propose especially carefully to control therefrom apart from vision area central authorities and change to the cylinder degree in the meridian two side areas at low coverage vision area top, the absolute value of controlling the interior peaked difference of cylinder degree of meridian both sides 20mm distance is less than or equal to 0.30 diopter; And the difference of meridianal each lateral column face degree maximal value and minimum value all is less than or equal to 0.1 additional optical focal power.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of progressive eye lens and mould thereof, and this eyeglass has wider low coverage and middle apart from vision area, improves glasses wearer's level of comfort and easy adaptive.The cylinder degree of its blind area astigmatism is lower than adding luminosity, and cylinder degree peaked position is away from joining the mirror center, guarantee that the glasses wearer not only looks when seeing in static state, and when dynamic vision was seen, middle distance distortion sense descends.The disclosed progressive lenses of the utility model can be applicable to the free form surface garage and makes interior progressive eye lens and outer progressive eye lens, also can be applicable to process the mould of interior progressive and outer progressive eye lens.
For solving the problems of the technologies described above, the utility model provides following technical scheme: the progressive eye lens that a kind of blind area is optimized, comprise the lens surface with certain radian, lens surface is looked far field, near reading range, passage and blind area, the left and right sides, wherein: the cylinder degree of the maximum astigmatism in blind area is lower than the luminosity that adds of eyeglass, cylinder degree Maximum constraint is adding below 96% of shading value, and the left and right sides maximum astigmatism distance in the horizontal direction is greater than 22 millimeters.
A kind of preferred version of progressive eye lens as blind area described in the utility model optimization, wherein: described eyeglass comprises main gradual change meridian, main gradual change meridian passes looks far field reference point, near reading range reference point, tilt to nasal side, overlap with channel centerline at channel region, the maximum astigmatism in blind area, both sides arrives the distance of channel centerline in the horizontal direction respectively greater than 11 millimeters.
A kind of preferred version of progressive eye lens as blind area described in the utility model optimization, wherein: described eyeglass comprises joins the mirror center, join mirror and be centered close on the eyeglass geometric center 3 millimeters, join the mirror center to two lines of the maximum astigmatism in blind area, both sides with the meridianal angle of main gradual change in the scopes that 42 degree-48 are spent.
As a kind of preferred version of progressive eye lens that blind area described in the utility model is optimized, wherein: the difference of blind area, the left and right sides maximum astigmatism cylinder degree is controlled at and adds below 5% of luminosity.
As a kind of preferred version of progressive eye lens that blind area described in the utility model is optimized, wherein: described eyeglass comprises nasal side and temporo side, and the maximum astigmatism cylinder of nasal side degree Maximum constraint is adding below 96% of shading value; The maximum astigmatism cylinder of temporo side degree Maximum constraint is adding below 94% of shading value; Join the mirror center to two lines of the maximum astigmatism in blind area, both sides with the meridianal angle of main gradual change in the scopes that 42.7 degree-47.9 are spent; Maximum astigmatism arrives the distance of channel centerline in the horizontal direction greater than 12 millimeters.
A kind of preferred version of progressive eye lens as blind area described in the utility model optimization, wherein: comprise the progressive eye lens of inside surface or the progressive eye lens of outside surface that use the free form surface lapping machine to process, comprise the progressive eye lens or the progressive eye lens of outside surface that use die casting or injection moulding mode to produce.
A kind of mould be used to processing the progressive eye lens of optimizing blind area described in the utility model, wherein, comprise the progressive eye lens of inside surface of use hot melt molding or free form surface Ginding process manufacturing or glass mold or the metal die of the progressive eye lens of outside surface.
The utlity model has following technique effect, join mirror and be centered close on geometric center 3 millimeters, the bridge of the nose that can be used for the occidentals is high, and eye socket is dark, and eyeglass is from the situation of the distance of eyeball.Also can be used for Asian's bridge of the nose lower, eye socket is more shallow, and eyeglass is from the situation of the close together of eyeball.Make the fit of glasses have suitable dirigibility.The cylinder degree value of the maximum astigmatism in blind area can guarantee that less than adding 96% of shading value progressive lenses does not have excessive astigmatism and causes more serious distortion, and the glasses wearer is not easy to produce dizzy phenomenon.The position, blind area is away from the characteristics of joining the mirror center, and when restriction departs from meridian, the variable gradient of cylinder degree is not too large, improves glasses wearer's comfort level, and the degree of deformation that middle distance is looked thing descends.
The maximum astigmatism in blind area is in the approximately position of 45 degree, below, the left and right sides, can guarantee to greatest extent far away, in, nearly three visuals field, district are in synchronously equilibrium state clearly, prevent the narrow phenomenon in wide a certain district, a certain district, thereby satisfy maximum ratio crowd's comprehensive comfortable wearing degree.The balance asymmetric design of restriction blind area, both sides maximum astigmatism cylinder degree difference being melted the picture effect in the time of improving glasses wearer's eyes and look thing in the brain vision.
Description of drawings
Fig. 1 is that (I is looked the far field for the subregion schematic diagram of ophthalmic progressive additional lens; The II near reading range; The III blind area).
Fig. 2 shows the schematic diagram of the maximum astigmatism in blind area position in the disclosed progressive lenses feature of the utility model.
The ophthalmic progressive additional lens that Fig. 3 provides according to the utility model embodiment one etc. the focal power line drawing.
Fig. 4 according to the utility model embodiment one provide the three-dimensional astigmatism stereographic map of ophthalmic progressive additional lens, 60 °, position angle-105 °, the angle of depression.
Fig. 5 according to the utility model embodiment one provide the cylinder degree line drawings such as astigmatism of ophthalmic progressive additional lens.
Fig. 6 according to the utility model embodiment one provide the three-dimensional astigmatism stereographic map of ophthalmic progressive additional lens, 80 °, position angle, 55 °, the angle of depression.
The ophthalmic progressive additional lens that Fig. 7 provides according to the utility model embodiment two etc. the focal power line drawing.
Fig. 8 according to the utility model embodiment two provide the three-dimensional astigmatism stereographic map of ophthalmic progressive additional lens, 60 °, position angle-105 °, the angle of depression.
Fig. 9 according to the utility model embodiment two provide the cylinder degree line drawings such as astigmatism of ophthalmic progressive additional lens.
Figure 10 according to the utility model embodiment two provide the three-dimensional astigmatism stereographic map of ophthalmic progressive additional lens, 80 °, position angle, 55 °, the angle of depression.
Embodiment
Below by way of example the utility model is further described.Embodiment adopts rectangular coordinate system, and its x axle is corresponding to the transverse axis of eyeglass, and the y axle is corresponding to the Z-axis of eyeglass, take millimeter as unit.
Embodiment one:
Consider an eyeglass, it is surperficial that this eyeglass has free form surface surface and sphere or the cylinder towards eyeglass wearer towards object space, i.e. outer progressive eye lens.Consider an eyeglass that is applicable to right eye herein, the eyeglass that is applicable to left eye can be got simply with the symmetrical eyeglass of the mirror image of right eye eyeglass and obtain.Machined surface is the outside surface of eyeglass, and it is that one protruding, every some place has the free form surface of a focal power and a cylinder degree surperficial thereon, optic diameter 72mm.
Fig. 3 show this face etc. the focal power line drawing, say exactly the optical power profile projection in the plane of eyeglass outside surface free form surface.The focal power stable region that is referred to as to look the far field that a broadness is arranged on the top of Fig. 3, as a reference point, depending on far point Dp in looking the far field.Power value depending on far point is 2.65D.A focal power stable region of departing from is slightly to the left arranged at the bottom of Fig. 3, is referred to as near reading range.When the glasses wearer reads, sight line is downward, and people's eyeball rotates to nasal side, and the near reading range of this eyeglass departs to the left, is suitable as right eyeglass.Reference point is looked near point Rp near reading range, is 4.64D depending on the power value of near point.Be 1.99D from looking far point to the luminosity that adds of looking the near point eyeglass.
Fig. 4 is the 3 dimensional drawing of eyeglass astigmatism distribution, and the viewpoint position angle of display graphics is 60 ° for-105 °, the angle of depression.As seen from the figure at eyeglass y〉0 the first half, have the comparatively open cylinder degree of a slice be zero look the far field I.The Lower Half of eyeglass has the mountain peak of two cylinder degree values, and this sheet mountain region is just the blind area II of eyeglass.Two peaks are in the both sides of eyeglass center line, and are not exclusively symmetrical.Accompanying a valley between two peaks is the meridianal position of main gradual change, also is called as previously mentioned passage.The end of passage can be seen a recessed valley floor, is the near reading range III.
The cylinder degree line drawings such as eyeglass astigmatism corresponding with Fig. 4 that is to say the cylinder degree distribution projection in the plane of eyeglass outside surface free form surface as shown in Figure 5.Demonstrating meridian M in figure and tilt to the left from top to bottom, is nasal side as right mirror its left side, and the right side is the temporo side.The astigmatism of main gradual change meridian both sides is not exclusively symmetrical, and the area that the cylinder degree lines such as astigmatism 1.75D are enclosed in nasal side is slightly larger than the area that is enclosed in the temporo side.The maximum astigmatism cylinder degree of nasal side is 1.90D, for adding 95% of luminosity, is positioned at x=-13mm, the y=-10mm place.The maximum astigmatism cylinder degree of temporo side is 1.87D, for adding 93.5% of luminosity, is positioned at x=11mm, the y=-10mm place.The cylinder degree of the maximum astigmatism in both sides is poor is 0.03D, only for adding 1.5% of luminosity.Main gradual change meridian has tilted 1 millimeter at the y=-10mm place to nasal side, namely at the x=-1mm place.What demonstrate geometric center above 3 millimeters places in Fig. 5 joins mirror center P and the line that dots that connects blind area, both sides maximum astigmatism point from P point.At nasal side, 12 millimeters, maximum astigmatism position deviation master gradual change meridian, with the angle of main transition line be 42.7 °.In the temporo side, maximum astigmatism position deviation master gradual change meridian is also 12 millimeters, is also 42.7 ° with the angle of main transition line.For with the left eyeglass of its mirror image symmetry, main gradual change meridian will tilting to the right 1 millimeter at the y=-10mm place, be to tilt 1 millimeter to nasal side too.With regard to the concept of nasal side, temporo side, left eyeglass and right eyeglass are duplicate in position and the cylinder degree size of the departing from of near reading range, blind area, both sides astigmatism.Simultaneously, on eyeglass, the cylinder degree of the maximum astigmatism in main gradual change meridian both sides has difference, is all that the maximum astigmatism cylinder degree of nasal side is slightly larger than the maximum astigmatism cylinder of temporo side degree, and in this example, both differences are only 0.03D.This is a kind of asymmetrical design, but with respect to meridian substantial symmetry again, the utility model has limited the difference degree of both sides astigmatisms, is the balance asymmetric design.Like this, make in the time of to improve glasses wearer's eyes and look thing in the brain vision
MaincenterMelt the picture effect, improve the wearer in low coverage vision area top and middle binocular vision comfort level apart from vision area bottom.
In order to illustrate further the characteristics of blind area astigmatism, Fig. 6 shows that eyeglass viewpoint position angle is that 80 °, the angle of depression are the astigmatism distribution 3 dimensional drawing of 55 °.This figure watches astigmatism distribution from the upper left side of eyeglass, be presented at the place ahead of figure depending on the far field, position and the extreme value on two astigmatism peaks mark on figure: x=11, y=-10, z=1.857 and x=-13, y=-10, z=1.898, near reading range can see obviously that at the rear of figure connecting the cylinder degree of looking far field and near reading range is zero passage.
Embodiment two:
Be with the maximum differential of embodiment one, in this example eyeglass have one towards the sphere of object space or cylinder surface and one towards the free form surface surface of eyeglass wearer, i.e. interior progressive eye lens.Machined surface is the inside surface of eyeglass, and it is that one recessed, every some place has the free form surface of a focal power and a cylinder degree surperficial thereon.The focal power of an eyeglass is combined by the focal power on inside and outside two sides.Specifically, the focal power of the eyeglass focal power that approximates outside surface deducts the focal power of inside surface.One has the progressive lenses that adds luminosity, if with the inside surface of its Random Curved Surface Designing at eyeglass, it adds luminosity is negative value.The focal power that is the free form surface surface in this example has the feature of dim light from top to bottom.
This example is considered an eyeglass that is applicable to left eye, optic diameter 70mm.As previously mentioned, the eyeglass that is applicable to right eye can be got simply with the symmetrical eyeglass of the mirror image of left eyeglass lens and obtain.
Fig. 7 show this example etc. the focal power line drawing, say exactly the optical power profile projection in the plane of eyeglass inside surface free form surface.A broad focal power stable region is arranged on the top of Fig. 7, namely looks the far field, depending on far point Dp in looking the far field.Power value depending on far point is 3.00D.Because the focal power of focal power stable region is slightly less than 3.00D, be 2.9994D, in figure etc. focal power line interval 0.2D, therefore only demonstrate the 2.8D line, do not demonstrate the 3.0D line.A focal power stable region near reading range that departs from is slightly to the right arranged at the bottom of Fig. 7.When the glasses wearer reads, sight line is downward, and people's eyeball rotates to nasal side, and the near reading range of this eyeglass departs to the right, is suitable as left eyeglass.Reference point is looked near point Rp near reading range, is 0.52D depending on the power value of near point.Demonstrating from looking far point is 2.48D to the dim light degree of looking the near point eyeglass.On the inside surface of the eyeglass that it is sphere that this free form surface is produced on an outside surface, eyeglass add luminosity 2.48D.
Fig. 8 is the 3 dimensional drawing of eyeglass astigmatism distribution, and the viewpoint position angle of display graphics is 70 ° for-105 °, the angle of depression.As seen from the figure at eyeglass y〉0 the first half, have the comparatively open cylinder degree of a slice be zero look the far field I.The Lower Half of eyeglass has the mountain peak of two cylinder degree values, and this sheet mountain region is just the blind area II of eyeglass.Two peaks are in the both sides of eyeglass center line, and are not exclusively symmetrical.Accompanying a valley between two peaks is the meridianal position of main gradual change, also is called as previously mentioned passage.The end of passage can be seen a recessed valley floor, is the near reading range III.
The cylinder degree line drawings such as eyeglass astigmatism corresponding with Fig. 8 says the cylinder degree distribution projection in the plane of eyeglass outside surface free form surface as shown in Figure 9 exactly.Demonstrating meridian M in figure and tilt to the right from top to bottom, is nasal side as left mirror its right side, and the left side is the temporo side.The astigmatism of main gradual change meridian both sides is not exclusively symmetrical, and the maximum astigmatism cylinder degree of nasal side is 2.30D, for 92.7% of dim light degree, is in x=12mm, the y=-7mm place.The maximum astigmatism cylinder degree of temporo side is 2.20D, for adding 88.7% of luminosity, is in x=-10mm, the y=-9mm place.What demonstrate geometric center above 3 millimeters places in Fig. 9 joins mirror center P and the line that dots that connects blind area, both sides maximum astigmatism point from P point.At nasal side, main gradual change meridian has tilted 0.9 millimeter at the y=-7mm place to nasal side, 11.1 millimeters, maximum astigmatism position deviation master gradual change meridian, with the angle of main transition line be 47.9 °.In the temporo side, the main gradual change meridian in y=-9mm place tilts 1 millimeter to nasal side, and the maximum astigmatism position deviation of temporo side master gradual change meridian is 11 millimeters, with the angle of main transition line be 42.5 °.On eyeglass, the cylinder degree of the maximum astigmatism in main gradual change meridian both sides has difference, and the maximum astigmatism cylinder degree of nasal side is greater than the maximum astigmatism cylinder of temporo side degree, and difference is 0.10D, is to add 4.0% of luminosity.In this example, example one is large for the difference of the maximum astigmatism cylinder in blind area, both sides degree, but still within being in the difference degree of both sides astigmatism of the utility model restriction.Detect the astigmatism cylinder degree with near reading range reference point same vertical position y=-15mm place, at nasal side, at x=9mm, the y=-15mm place, astigmatism cylinder degree is 1.26D; In the temporo side, x=-6mm, the y=-15mm place, astigmatism cylinder degree is also 1.26D.Both are apart from 15mm.That is to say, take astigmatism cylinder degree less than add luminosity 1/2nd as standard, reach 15mm at the width of near reading range.Simultaneously, main gradual change meridian is that nasal side departs from 2mm to the right at the y=-15mm place, and the cylinder degree is that the astigmatism point of 1.26D is respectively 7mm and 8mm with the meridianal distance of main gradual change, and both sides are in a basic balance.Show not only asymmetric but also feature that bilateral is in a basic balance.
In order to illustrate further the characteristics of blind area astigmatism, Figure 10 shows that eyeglass viewpoint position angle is that 80 °, the angle of depression are the astigmatism 3 dimensional drawing of 55 °.This figure watches astigmatism distribution from the upper left side of eyeglass, be presented at the place ahead of figure depending on the far field, position and the extreme value on two astigmatism peaks mark on figure: x=12, y=-7, z=2.302 and x=-10, y=-9, z=2.196, near reading range can see obviously that at the rear of figure connecting the cylinder degree of looking far field and near reading range is zero passage.
The blind area astigmatism parameter that provides of two embodiment:
Above-described embodiment can adopt the method for prior art CN101661167B, selects the design of suitable meridian and outline line to obtain.Also can take the method for other prior aries.
It should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. the progressive eye lens optimized of a blind area, comprise the lens surface with certain radian, lens surface is looked far field, near reading range, passage and blind area, the left and right sides, it is characterized in that: the cylinder degree of the maximum astigmatism in blind area is lower than the luminosity that adds of eyeglass, cylinder degree Maximum constraint is adding below 96% of shading value, and the left and right sides maximum astigmatism distance in the horizontal direction is greater than 22 millimeters.
2. the progressive eye lens optimized of blind area according to claim 1, it is characterized in that: described eyeglass comprises main gradual change meridian, main gradual change meridian passes looks far field reference point, near reading range reference point, tilt to nasal side, overlap with channel centerline at channel region, the maximum astigmatism in blind area, both sides arrives the distance of channel centerline in the horizontal direction respectively greater than 11 millimeters.
3. the progressive eye lens optimized of blind area according to claim 1, it is characterized in that: described eyeglass comprises joins the mirror center, join mirror and be centered close on the eyeglass geometric center 3 millimeters, join the mirror center to two lines of the maximum astigmatism in blind area, both sides with the meridianal angle of main gradual change in the scopes that 42 degree-48 are spent.
4. the progressive eye lens optimized of blind area according to claim 1, it is characterized in that: the difference of blind area, the left and right sides maximum astigmatism cylinder degree is controlled at and adds below 5% of luminosity.
5. the progressive eye lens optimized of blind area according to claim 1, it is characterized in that: described eyeglass comprises nasal side and temporo side, the maximum astigmatism cylinder of nasal side degree Maximum constraint is adding below 96% of shading value; The maximum astigmatism cylinder of temporo side degree Maximum constraint is adding below 94% of shading value.
6. the progressive eye lens optimized of blind area according to claim 1, it is characterized in that: comprise the progressive eye lens of inside surface or the progressive eye lens of outside surface that use the free form surface lapping machine to process, comprise the progressive eye lens or the progressive eye lens of outside surface that use die casting or injection moulding mode to produce.
7. mould that is used for processing the progressive eye lens of optimizing blind area claimed in claim 1, it is characterized in that, comprise and use hot melt molding or the progressive eye lens of inside surface of free form surface Ginding process manufacturing or glass mold or the metal die of the progressive eye lens of outside surface.
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| CN 201220364539 CN202995164U (en) | 2012-07-26 | 2012-07-26 | Blind area-optimized progressive eye lens and mould thereof |
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| CN 201220364539 CN202995164U (en) | 2012-07-26 | 2012-07-26 | Blind area-optimized progressive eye lens and mould thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065218A (en) * | 2016-02-10 | 2017-08-18 | 文森尔林技术公司 | Sense aperture eyeglass and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065218A (en) * | 2016-02-10 | 2017-08-18 | 文森尔林技术公司 | Sense aperture eyeglass and method |
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Effective date of registration: 20191217 Address after: No.8 Danfu Road, Situ Town, Danyang City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Mingshi Optical Technology Co.,Ltd. Address before: 215025 No. 506 South Street, Suzhou Industrial Park, Jiangsu, China Patentee before: SOOCHOW MASON OPTICS CO.,LTD. |
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Granted publication date: 20130612 |
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