CN103487948A - Production method of progressive additional high-grade resin lens - Google Patents
Production method of progressive additional high-grade resin lens Download PDFInfo
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- CN103487948A CN103487948A CN201310466340.9A CN201310466340A CN103487948A CN 103487948 A CN103487948 A CN 103487948A CN 201310466340 A CN201310466340 A CN 201310466340A CN 103487948 A CN103487948 A CN 103487948A
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Abstract
The invention relates to a production method of a progressive additional high-grade resin lens. The method is characterized by comprising the steps of: 1) progressive design of MDA; 2) design of a numerical control processing cutting scheme; and 3) temperature deformation self-leveling. The digital grinding process involved in the invention ensures that a lens die can realize a theoretical design precision, the self-leveling process greatly enhances the die surface strength, the service life of the die can be 5 times that of an original ordinary lens die, and the use cost of the die is lowered by 50%. The qualified rate of the output formed by the die is greatly improved.
Description
Technical field
The present invention relates to a kind of production method of progressive additional high-grade resin eyeglass.
Background technology
Progressive multi-focus lens (Progressive Additional Lens), also claim the gradual change focus lens, and desirable progressive at least will meet 3 basic demands: an effective visible sensation zone (depending on far field, near reading range, transition region) of trying one's best large; Two high as far as possible near reading ranges (being that transition region is as far as possible short); Three hold malleable aberration (aberration changes soft).Its superior properties of product of progressive multi-focus lens more and more receive much attention in order, especially high-performance, top grade, high-precision product for China consumer.According to investigations, China has 400,000,000 people's wearing spectacles now, in adolescent student, there are 80% university student, 65.5% middle school student and 17.5% pupil to suffer from myopia, student's the most obvious characteristics of wearing glasses are from the blackboard to books, from looking as far as looking closely frequently, carry out, wear progressive multi-focus lens and can regulate fatigue in the situation that continuous change gaze distance effectively alleviate vision physiological, suppress the continuous intensification of near-sighted generation and myopia degree.
Because China progressive multi-focus lens technical research lags behind, the product design scarce capacity, the precision of mold machining technology can not guarantee again, the technical indicator of Theoretical Design can not be embodied in product.
Summary of the invention
For above problem, the object of the present invention is to provide a kind of production method of progressive additional high-grade resin eyeglass, is to adopt MDA design refractive indices, NC Machining of Free-form Surfaces program and the device fabrication of temperature deformation Self-leveling to go out progressive additional high-grade resin eyeglass.
Technical scheme of the present invention is achieved in the following ways: the production method of progressive additional high-grade resin eyeglass is characterized in that: comprise the following steps:
1), the progressive design of MDAization: according in the eyeglass that adds luminosity, passage length, application under the refractive index of product, ADD or outside surface require sampling;
2), design digital control processing cutting scheme: the digital control processing cutting and grinding allows to look far field and there is certain power variation near reading range, make the gradation zone broadening of eyeglass, power progression speed is slow, mildly distribute gently far and near dynamic vision to change, at utmost suppress the aberration at zone of transition edge;
3), temperature deformation Self-leveling: the eye movement parameter according to eyes will turn in progressive district, two eyeglass corresponding point two side mirror degree, astigmatic aberration, vertical prism similarity are carried out to appropriate balance, the center-aisle prism effect everywhere that connects distance vision zone and near vision zone is all reached unanimity, increase the rationality of width and the passage length of progressive passage, guaranteed the rationality of diopter correction in whole horizon ranges from far near;
In described eyeglass or outside surface be sampled as: the spatial decomposition wave front aberration of central authorities and neighboring area from as far as closely reaching ± 20 zone; Distance 27 mm between rear summit and eyes rotation center, ken degree of tilt is 12 degree; 2.0 mm; Progressive regional starting position 2.0 mm in MRP top; Progressive regional end position 12.0 mm in MRP below.
The present invention, the digitizing grinding process has guaranteed lens mold realization theory design accuracy, Self-leveling technique, the intensity of die surface is greatly improved, die life is 5 times of former common lens mold, the mould use cost descends 50%, and the output qualification rate formed through mould is greatly improved.
Embodiment
The production method of progressive additional high-grade resin eyeglass is characterized in that: comprise the following steps:
1, the progressive design of MDAization: according in the eyeglass that adds luminosity, passage length, application under the refractive index of product, ADD or outside surface require sampling: in eyeglass or outside surface be sampled as: the spatial decomposition wave front aberration of central authorities and neighboring area from as far as closely reaching ± 20 zone; Distance 27 mm between rear summit and eyes rotation center, ken degree of tilt is 12 degree; 2.0 mm; Progressive regional starting position 2.0 mm in MRP top; Progressive regional end position 12.0 mm in MRP below.
2, design digital control processing cutting scheme: the digital control processing cutting and grinding allows to look far field and there is certain power variation near reading range, make the gradation zone broadening of eyeglass, power progression speed is slow, mildly distribute gently far and near dynamic vision to change, at utmost suppress the aberration at zone of transition edge;
3, temperature deformation Self-leveling: the eye movement parameter according to eyes will turn in progressive district, two eyeglass corresponding point two side mirror degree, astigmatic aberration, vertical prism similarity are carried out to appropriate balance, the center-aisle prism effect everywhere that connects distance vision zone and near vision zone is all reached unanimity, increase the rationality of width and the passage length of progressive passage, guaranteed the rationality of diopter correction in whole horizon ranges from far near.
Claims (2)
1. the production method of progressive additional high-grade resin eyeglass is characterized in that: comprise the following steps:
1), the progressive design of MDAization: according in the eyeglass that adds luminosity, passage length, application under the refractive index of product, ADD or outside surface require sampling;
2), design digital control processing cutting scheme: the digital control processing cutting and grinding allows to look far field and there is certain power variation near reading range, make the gradation zone broadening of eyeglass, power progression speed is slow, mildly distribute gently far and near dynamic vision to change, at utmost suppress the aberration at zone of transition edge;
3), temperature deformation Self-leveling: the eye movement parameter according to eyes will turn in progressive district, two eyeglass corresponding point two side mirror degree, astigmatic aberration, vertical prism similarity are carried out to appropriate balance, the center-aisle prism effect everywhere that connects distance vision zone and near vision zone is all reached unanimity, increase the rationality of width and the passage length of progressive passage, guaranteed the rationality of diopter correction in whole horizon ranges from far near.
2. the production method of progressive additional high-grade resin eyeglass according to claim 1 is characterized in that: in the eyeglass in described step 1) or outside surface be sampled as: the spatial decomposition wave front aberration of central authorities and neighboring area from as far as closely reaching ± 20 zone; Distance 27 mm between rear summit and eyes rotation center, ken degree of tilt is 12 degree; 2.0 mm; Progressive regional starting position 2.0 mm in MRP top; Progressive regional end position 12.0 mm in MRP below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466340.9A CN103487948A (en) | 2013-10-09 | 2013-10-09 | Production method of progressive additional high-grade resin lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466340.9A CN103487948A (en) | 2013-10-09 | 2013-10-09 | Production method of progressive additional high-grade resin lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103487948A true CN103487948A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310466340.9A Pending CN103487948A (en) | 2013-10-09 | 2013-10-09 | Production method of progressive additional high-grade resin lens |
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| CN (1) | CN103487948A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204181A (en) * | 2015-10-19 | 2015-12-30 | 苏州大学 | Progressive addition lens based on hyperbolic tangent function and logarithmic function and design method of progressive addition lens |
| CN106738506A (en) * | 2016-12-12 | 2017-05-31 | 上海康耐特光学股份有限公司 | The making of progressive lenses mould and modification method and its obtained lens mold |
| CN112721257A (en) * | 2019-10-28 | 2021-04-30 | 蒙城县盈宝光学眼镜有限公司 | Machining process of 12-degree one-hop garage lens |
-
2013
- 2013-10-09 CN CN201310466340.9A patent/CN103487948A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105204181A (en) * | 2015-10-19 | 2015-12-30 | 苏州大学 | Progressive addition lens based on hyperbolic tangent function and logarithmic function and design method of progressive addition lens |
| CN105204181B (en) * | 2015-10-19 | 2018-07-31 | 苏州大学 | Progressive multi-focus lens |
| CN106738506A (en) * | 2016-12-12 | 2017-05-31 | 上海康耐特光学股份有限公司 | The making of progressive lenses mould and modification method and its obtained lens mold |
| CN112721257A (en) * | 2019-10-28 | 2021-04-30 | 蒙城县盈宝光学眼镜有限公司 | Machining process of 12-degree one-hop garage lens |
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| C06 | Publication | ||
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Application publication date: 20140101 |