CN202995166U - Myopia peripheral defocus correcting glasses - Google Patents
Myopia peripheral defocus correcting glasses Download PDFInfo
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- CN202995166U CN202995166U CN 201220655323 CN201220655323U CN202995166U CN 202995166 U CN202995166 U CN 202995166U CN 201220655323 CN201220655323 CN 201220655323 CN 201220655323 U CN201220655323 U CN 201220655323U CN 202995166 U CN202995166 U CN 202995166U
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Abstract
The utility model provides a pair of myopia peripheral defocus correcting glasses, and belongs to health-care glasses. Existing glasses for the myopia can not correct retina peripheral hyperopia defocus, so a myopia degree is likely to increase. The myopia peripheral defocus correcting glasses is a pair of additional glasses of two-layer glasses and is still two-layer glasses; central optical areas of additional lenses are plano lenses, main lens are kept to be used for distant vision and to correct retina central myopia defocus, and a distant vision function is improved; peripheral optical areas of the additional lenses are convex lenses, the retina peripheral hyperopia defocus is corrected, and increasing of the myopia degree is effectively prevented and controlled.
Description
Technical field
The utility model relates to a kind of myopia addition peripheral defocus correction spectacles, more particularly, relates to a kind ofly on conventional myopic glasses bases, and a kind of Two-layer spectacle additional glasses or Two-layer spectacle of correcting retinal periphery long sight out of focus is provided.
Background technology
Eyeball has emmetropization active adjustment process, relies on the focusing growth at retinal periphery position, and especially children and teenager induce more remarkable to this out of focus.Focus drops on the latter of eyeball peripheral retina, is called retinal periphery long sight out of focus (hyperopic defocus), induces eyeball to grow backward, promote the myopia number of degrees to increase.Focus drops on the former of eyeball peripheral retina, is called retinal periphery Myopia out of focus (myopic defocus), stops that eyeball is grown backward, the retarding myopia eye number of degrees increase.Existing conventional myopic glasses have monochromatic light concace mirror lens, two light concace mirror lens and progressive multi-focus lens, wear these conventional myopic lenses, correction of myopia retinal centre Myopia out of focus, the distant vision that improves when far away.Eye is looked when near, control lag causes retinal periphery long sight out of focus, if wear these conventional myopic lenses, the concace mirror lens at lens periphery position promotes or increase the weight of retinal periphery long sight out of focus more, double factor induces eyeball to grow backward, promotes the myopia number of degrees to increase.Wear the conventional myopic lens when far away, the theory and the effect that correct retinal centre Myopia out of focus, improve distant vision are right as rain.Yet, wear the conventional myopic lens when near, promote or increase the weight of retinal periphery long sight out of focus, this is the serious technological deficiency of conventional myopic lens, this factor is also referred to as bathomorphic glasses sources factor.
The primary mirror of existing Two-layer spectacle is spectacles, and additional glasses is the shading sunglass lens, and this additional glasses or Two-layer spectacle are without the retinal periphery of rectification long sight out of focus function is arranged.The China Patent No. 2008801159183 (WO2009/052570) that vision CRC company limited is authorized, and Optical Co., Ltd releases international first (it is permanently happy that Zeiss becomes) myopia addition peripheral defocus correction spectacles by the Ka Er Zeiss, these glasses are not to design on conventional myopic lens basis, be a novel spectacles, needs of patients is prepared again.Single frame myopia addition peripheral defocus correction spectacles is closely all used same a pair of glasses depending on far away with looking, and because lens periphery is convex lens sheet, certainly will affects and look the broad degree in the enough visuals field of eyeglass far away.Bathomorphic morbidity is closely to cause retinal periphery long sight out of focus owing to looking, rather than due to looking far, therefore, spectacles are looked and far be need not design rectification retinal periphery long sight out of focus.Myopia rectification at present, prevention and control problem are still the great technical barrier of international medical community.
The utility model content
The utility model purpose is to overcome the serious technological deficiency that the conventional myopic lens promotes or increase the weight of retinal periphery long sight out of focus, on conventional myopic glasses bases, provide a kind of Two-layer spectacle additional glasses or Two-layer spectacle of correcting retinal periphery long sight out of focus.
The utility model purpose is to be achieved by following technical proposals:
This myopia addition peripheral defocus correction spectacles is the additional glasses of Two-layer spectacle, and additional glasses is comprised of additional picture frame, additional eyeglass.Additional eyeglass is provided with central optical zone and peripheral Optical Region, central optical zone is positioned at the eyeglass central part or is positioned at the eyeglass central part and extends to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, be prepared as plano lens, refractive diopter is+0.00DS.The periphery Optical Region is positioned at the lens periphery position, is prepared as convex lens sheet, and refractive diopter is+0.50DS～+ 8.00DS.Additional eyeglass central optical zone is positioned at the eyeglass central part, is prepared as circle, ellipse.Additional eyeglass central optical zone is positioned at the eyeglass central part and extends to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, is prepared as that feather is spherical, nail-shaped.Central optical zone is circular, oval-shaped additional eyeglass, and peripheral Optical Region is positioned at lens periphery circumference 360 °, position angle scope.The central optical zone feather is spherical, the additional eyeglass of nail-shaped, and peripheral Optical Region is positioned at 180 °～270 °, side periphery circumference position angle scope on eyeglass.The central optical zone of additional eyeglass shuttlecock shape, nail-shaped extends to 90 °～180 °, side periphery circumference position angle scope under eyeglass.Additional eyeglass central optical zone is prepared as horizontal electrical path length and vertical diameter height 15mm～45mm.Additional eyeglass central optical zone is provided with the transition region between peripheral Optical Region, and the refractive diopter incremental change is+0.50DS, till increasing to successively peripheral Optical Region refractive diopter from the 0.00DS refractive diopter.Additional eyeglass preparation is circular, oval, feather is spherical, the additional glasses of nail-shaped, the primary mirror for preparing the monochromatic light concace mirror lens with the primary mirror sheet combination that is complementary.Additional eyeglass prepares that feather is spherical, the additional glasses of nail-shaped, with the combination that is complementary of the primary mirror of the two light concace mirror lens of primary mirror sheet preparation, progressive multi-focus lens.After the combination of the primary mirror of additional glasses and monochromatic light concace mirror lens, two light concace mirror lens, progressive multi-focus lens, lens periphery position refractive diopter is+0.50DS～+ the 3.00DS convex lens sheet.
This myopia addition peripheral defocus correction spectacles is also Two-layer spectacle, is comprised of 1 primary mirror and 1 additional glasses, and primary mirror is comprised of primary frame, mirror leg, primary mirror sheet, and additional glasses is comprised of additional picture frame, additional eyeglass.Additional eyeglass is provided with central optical zone and peripheral Optical Region, central optical zone is positioned at the eyeglass central part or is positioned at the eyeglass central part and extends to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, is prepared as that circle, ellipse, feather are spherical, the nail-shaped plano lens.The periphery Optical Region is positioned at the lens periphery position, is prepared as convex lens sheet, and refractive diopter is+0.50DS～+ 8.00DS.The primary mirror sheet is prepared as monochromatic light concace mirror lens, two light concace mirror lens, progressive multi-focus lens.
The utility model beneficial effect compared with prior art is:
1, on existing conventional myopic glasses bases, provide a kind of Two-layer spectacle additional glasses or Two-layer spectacle of correcting retinal periphery long sight out of focus;
2, this myopia addition peripheral defocus correction spectacles has kept looking of conventional myopic glasses rectification retinal centre Myopia far away out of focus, has improved distant vision, the broad advantage in the eyeglass visual field; When near before its conventional myopic glasses, make up this additional glasses, additional eyeglass central optical zone is plano lens, still keep the conventional myopic glasses and look raising distant vision advantage far away, additional lens periphery Optical Region convex lens sheet when near, correct retinal periphery long sight out of focus or form retinal periphery Myopia out of focus, effectively pre-Anti-myopic eye occurs and controls the myopia number of degrees to increase.
Description of drawings
Fig. 1 is the additional glasses structural representation of myopia addition peripheral defocus correction spectacles;
Fig. 2 is the primary mirror structural representation of the Two-layer spectacle of myopia addition peripheral defocus correction spectacles;
Fig. 3 is the Two-layer spectacle structural representation of myopia addition peripheral defocus correction spectacles;
Fig. 4 is oval additional mirror chip architecture schematic diagram;
Fig. 5 is the spherical additional mirror chip architecture of feather schematic diagram;
Fig. 6 is nail-shaped additional mirror chip architecture schematic diagram;
Fig. 7 is the additional mirror chip architecture schematic diagram that central optical zone to peripheral Optical Region has the transition region;
Fig. 8 is the primary mirror chip architecture schematic diagram of two light concace mirror lens;
Fig. 9 is the primary mirror chip architecture schematic diagram of progressive multi-focus lens.
In figure: 1 additional picture frame; 2 additional eyeglasses; 3 central optical zones; 4 peripheral Optical Region; 5 plano lenses; 6 convex lens sheets; 7 circles; 8 ellipses; 9 feathers are spherical; 10 nail-shaped; 11 primary frame; 12 mirror legs; 13 primary mirror sheets; 14 monochromatic light concace mirror lens; 15 pairs of light concace mirror lens; 16 progressive multi-focus lens; 17 transition regions.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
This myopia addition peripheral defocus correction spectacles is hereinafter referred to as this glasses.Two-layer spectacle is also referred to as Combined type glasses, and its front glasses are called hangs mirror or additional glasses, and the back glasses are called end mirror or primary mirror.Select existing snap ring-type, collapsible, screw type, coupling type, clip type or magnetic adsorption double-layer spectacle frames as the mirror holder of this glasses, and be not limited to above-mentioned double-layer spectacle frames.Because frame size and the structure of conventional myopic glasses are different, the preferred coupling type of this glasses, clip type spectacle frame are as the additional glasses frame.Selection is prepared with the mirror holder of primary frame and mirror leg as main glasses holder, and the additional picture frame of selecting to be complementary with primary frame is as the additional glasses frame.Select optical glass or Plastic eyeglasses sheet material as this lens material, adopt existing lens technology of preparing to prepare this lens.Existing monochromatic light concace mirror lens, two light concace mirror lens, progressive multi-focus lens are installed in primary frame.
This myopia addition peripheral defocus correction spectacles is the additional glasses of Two-layer spectacle, and additional glasses is comprised of additional picture frame (1), additional eyeglass (2).Additional eyeglass (2) is prepared with central optical zone (3) and peripheral Optical Region (4).Central optical zone (3) is prepared at the eyeglass central part, perhaps with central optical zone (3) preparation at the eyeglass central part and extend to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, be prepared as plano lens (5), refractive diopter is 0.00DS.Central optical zone (3) is prepared from eyeglass central authorities and extends to downside, and purpose is the near reading range territory that does not affect the conventional myopic lens.With central optical zone (3) preparation plano lens (5), purpose is not affect looking of conventional myopic lens rectification refractive diopter far away.Peripheral Optical Region (4) preparation at the lens periphery position, is prepared as convex lens sheet (6), refractive diopter is+0.50DS～+ 8.00DS.Periphery Optical Region (4) prepares different refractive diopters, and purpose is to adapt to different myopia refractive diopter needs.
Additional eyeglass (2) central optical zone (3) preparation is prepared as circle (7), oval (8) (as Fig. 4) at the eyeglass central part, is particularly useful for the spectacles of traditional monochromatic light concace mirror lens (14).Additional eyeglass (2) central optical zone (3) preparation is at the eyeglass central part and extend to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, be prepared as feather spherical (9) (as Fig. 5), nail-shaped (10) (as Fig. 6), the conventional myopic glasses that are particularly useful for two light concace mirror lens (15), progressive multi-focus lens (16) are unlikely to affect the passage of looking nearly of the Xia Guang district of two light concace mirror lens (15) and progressive multi-focus lens (16).Central optical zone (3) is prepared as the additional eyeglass (2) of circle (7), oval (8), periphery Optical Region (4) preparation is corrected to larger regional extent retinal periphery long sight out of focus in 360 °, circumference position angle, lens periphery position scope.Central optical zone (3) is prepared as the additional eyeglass (2) of feather spherical (9), nail-shaped (10), peripheral Optical Region (4) preparation 180 °～270 °, side periphery circumference position angle scope on eyeglass.Peripheral Optical Region (4) rectification retinal periphery long sight defocusing effect than small area is relatively low, the peripheral Optical Region (4) of the 180 °～270 ° of scopes in position angle contains has covered upside, nasal side and the temporo side of playing main effects in retina long sight out of focus, still can effectively correct retinal periphery long sight out of focus.The central optical zone (3) of additional eyeglass (2) preparation feather spherical (9), nail-shaped (10), central optical zone (3) extend to lens periphery circumference 90 °～180 °, the position angle scope of nasal inferior quadrant, inferior temporal quadrant to downside.Central optical zone (3) extends to the lens periphery position to downside, and purpose is the near reading range territory that does not affect two light concace mirror lens (15), progressive multi-focus lens (16).To add eyeglass (2) central optical zone (3) and be prepared as horizontal electrical path length and vertical diameter height 15mm～45mm, preferably be prepared as horizontal electrical path length and vertical diameter height 20mm～40mm.Circle (7) central optical zone (3) is prepared as diameter 15mm～45mm, oval (8) central optical zone (3) is prepared as minor axis 15mm～45mm, and feather spherical (9) or nail-shaped (10) central optical zone (3) are prepared as horizontal electrical path length or vertical diameter height 15mm～45mm.Preferably circle (7) central optical zone (3) is prepared as diameter 20mm～40mm, oval (8) central optical zone (3) is prepared as minor axis 20mm～40mm, and feather spherical (9) or nail-shaped (10) central optical zone (3) are prepared as horizontal electrical path length or vertical diameter height 20mm～40mm.
Additional eyeglass (2) central optical zone (3) of this glasses is prepared with transition region (17) (as Fig. 7) between peripheral Optical Region (4), the refractive diopter incremental change is+0.50DS, till increasing to successively peripheral Optical Region (4) refractive diopter from the 0.00DS refractive diopter.Be prepared with the additional eyeglass (2) of transition region (17), purpose is eliminate between central optical zone (3) and peripheral Optical Region (4) the eyeglass jump phenomena and make eyeglass more attractive in appearance.
This glasses are to be the conventional myopic eyeglass design, the additional glasses of additional eyeglass (2) preparation circular (7), oval (8), feather spherical (9), nail-shaped (10) is with the combination that is complementary of the primary mirror of primary mirror sheet (13) preparation monochromatic light concace mirror lens (14).The additional glasses of additional eyeglass (2) preparation feather spherical (9), nail-shaped (10), with the two light concace mirror lens (15) (as Fig. 8) of primary mirror sheet (13) preparation, progressive multi-focus lens (16) (as Fig. 9), the primary mirror combination that is complementary.the additional glasses of this glasses and monochromatic light concace mirror lens (14), two light concace mirror lens (15), after the primary mirror combination of progressive multi-focus lens (16), the refractive diopter of the peripheral Optical Region of additional eyeglass (2) (4) of additional glasses, monochromatic light concace mirror lens (14) with primary mirror, two light concace mirror lens (15), progressive multi-focus lens (16) refractive diopter combination addition, lens periphery position refractive diopter is+0.50DS～+ 3.00DS, purpose is to correct retinal periphery long sight out of focus or form retinal periphery Myopia out of focus.The additional eyeglass (2) that central optical zone (3) is prepared as circle (7) is installed on additional picture frame (1), forms the additional glasses (as Fig. 1) of myopia addition peripheral defocus correction spectacles.To be prepared as monochromatic light concace mirror lens (14) primary mirror sheet (13) and be installed on primary frame (11), form the primary mirror (as Fig. 2) of the Two-layer spectacle of myopia addition peripheral defocus correction spectacles.Central optical zone (3) is prepared as the additional glasses of circle (7), be installed on primary mirror sheet (13) on the primary frame (11) of monochromatic light concace mirror lens (14), form the Two-layer spectacle (as Fig. 3) of myopia addition peripheral defocus correction spectacles.
This myopia addition peripheral defocus correction spectacles, it is also Two-layer spectacle, be comprised of 1 primary mirror and 1 additional glasses, primary mirror is comprised of primary frame (11), mirror leg (12), primary mirror sheet (13), and additional glasses is comprised of additional picture frame (1), additional eyeglass (2).Additional eyeglass (2) is prepared with central optical zone (3) and peripheral Optical Region (4), central optical zone (3) preparation is at eyeglass central part or eyeglass central part and extend to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, is prepared as circle (7), oval (8), feather spherical (9), nail-shaped (10) plano lens (5).Periphery Optical Region (4) preparation is prepared as convex lens sheet (6) at the lens periphery position, and refractive diopter is+0.50DS～+ 8.00DS.Primary mirror sheet (13) is prepared as monochromatic light concace mirror lens (14), two light concace mirror lens (15), progressive multi-focus lens (16).Two light concace mirror lens (15) refer to that glazing is the concavees lens refractive diopter of correcting the retinal centre out of focus, and lower light is three kinds of style eyeglasses of low concace mirror lens, lower degree convex lens sheet and composite prisms sheet.It is that two light concace mirror lens (15) of low concavees lens, lower light are two light concace mirror lens (15) of two light concace mirror lens (15) of lower degree convex lens, lower photoreactivation prism that the two light concace mirror lens (15) of these three kinds of styles are called lower light.Tradition primary mirror sheet is monochromatic light concace mirror lens (14), two light concace mirror lens (15), progressive multi-focus lens (16) three types; Two light concace mirror lens (15) are divided into again three kinds of styles, so the conventional myopic lens is three types, and five kinds of styles.
The eyeglass principle: the utility model is to utilize Two-layer spectacle, eyeglass subregion to correct effect, eyeglass refractive diopter combination principle, creates a kind of myopia addition peripheral defocus correction spectacles.This glasses, keep looking of conventional myopic glasses rectification retinal centre Myopia far away out of focus, improved distant vision, the broad advantage in the eyeglass visual field, before its conventional myopic glasses, make up this additional glasses, the plano lens of additional eyeglass central optical zone, guarantee that still the conventional myopic glasses look the constant advantage of refractive diopter far away, the convex lens sheet of additional lens periphery Optical Region is corrected retinal periphery long sight out of focus when near, and effectively pre-Anti-myopic eye occurs and control the myopia number of degrees that formed to increase.
The eyeglass preparation: during the utility model clinical practice, original conventional myopic glasses are corrected number of degrees appropriate ones, can not need again to prepare primary mirror, only need to prepare additional glasses.The primary mirror of original traditional monochromatic light concace mirror lens, can prepare the additional glasses of the additional eyeglass of any type of the utility model, the primary mirror of original traditional double light concace mirror lens or progressive multi-focus lens is selected the additional glasses that the preparation feather is spherical, nail-shaped is added lamel.Original conventional myopic glasses are corrected the improper person of the number of degrees, correct the number of degrees according to the myopia of optometry again, again prepare primary mirror and additional glasses, preferably prepare the primary mirror of monochromatic light concace mirror lens, circular, the oval additional glasses that adds eyeglass.
Using method: the main adaptation population of this myopia addition peripheral defocus correction spectacles is that between 6 years old～18 years old, children and juvenile shortsightedness person wear, and also adapts to the age greater than 18 years old myopia number of degrees person of developing at a too fast speed.Look far when daily outwork or life, only wear the myopia glasses of traditional monochromatic light concace mirror lens, two light concace mirror lens or progressive multi-focus lens, correct retinal centre Myopia out of focus by the primary mirror sheet, improve distant vision.Attend class or during close eye, especially children and juvenile shortsightedness person go up class hour, additional glasses is installed on the conventional myopic glasses, looks far by the plano lens of additional eyeglass central optical zone, still can correct retinal centre Myopia out of focus, improve distant vision; When near, the convex lens sheet of additional lens periphery Optical Region is corrected retinal periphery long sight out of focus, and pre-Anti-myopic eye occurs or control the myopia number of degrees to increase.
Claims (10)
1. myopia addition peripheral defocus correction spectacles, additional glasses for Two-layer spectacle, additional glasses is by additional picture frame (1), additional eyeglass (2) forms, its technical characterictic is: additional eyeglass (2) is provided with central optical zone (3) and peripheral Optical Region (4), central optical zone (3) is positioned at the eyeglass central part or is positioned at the eyeglass central part and extends to nasal inferior quadrant to downside, the lens periphery position of inferior temporal quadrant, be prepared as plano lens (5), periphery Optical Region (4) is positioned at the lens periphery position, be prepared as convex lens sheet (6), refractive diopter is+0.50DS～+ 8.00DS.
2. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: described additional eyeglass (2) central optical zone (3) is positioned at the eyeglass central part, is prepared as circle (7), oval (8).
3. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: described additional eyeglass (2) central optical zone (3) is positioned at the eyeglass central part and extends to the lens periphery position of nasal inferior quadrant, inferior temporal quadrant to downside, is prepared as feather spherical (9), nail-shaped (10).
4. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: the additional eyeglass (2) of described central optical zone (3) circular (7), oval (8), periphery Optical Region (4) is positioned at lens periphery circumference 360 °, position angle scope, the additional eyeglass (2) of central optical zone (3) feather spherical (9), nail-shaped (10), peripheral Optical Region (4) are positioned at 180 °～270 °, side periphery circumference position angle scope on eyeglass.
5. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: the central optical zone (3) of described additional eyeglass (2) feather spherical (9), nail-shaped (10) extends to 90 °～180 °, side periphery circumference position angle scope under eyeglass.
6. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: described additional eyeglass (2) central optical zone (3) is prepared as horizontal electrical path length and vertical diameter height 15mm～45mm.
7. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: described additional eyeglass (2) central optical zone (3) is provided with transition region (17) between peripheral Optical Region (4), the refractive diopter incremental change is+0.50DS, till increasing to successively peripheral Optical Region (4) refractive diopter from the 0.00DS refractive diopter.
8. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 1, its technical characterictic is: described additional eyeglass (2) preparation circular (7), oval (8), feather spherical (9), the additional glasses of nail-shaped (10), with the combination that is complementary of the primary mirror of primary mirror sheet (13) preparation monochromatic light concace mirror lens (14), described additional eyeglass (2) preparation feather spherical (9), the additional glasses of nail-shaped (10), with the two light concace mirror lens (15) of primary mirror sheet (13) preparation, the combination that is complementary of the primary mirror of progressive multi-focus lens (16).
9. by a kind of myopia addition peripheral defocus correction spectacles claimed in claim 8, its technical characterictic is: after the combination of the primary mirror of described additional glasses and monochromatic light concace mirror lens (14), two light concace mirror lens (15), progressive multi-focus lens (16), lens periphery position refractive diopter is+and 0.50DS～+ 3.00DS convex lens sheet (6).
10. myopia addition peripheral defocus correction spectacles, it is also Two-layer spectacle, formed by 1 primary mirror and 1 additional glasses, primary mirror is by primary frame (11), mirror leg (12), primary mirror sheet (13) forms, additional glasses is by additional picture frame (1), additional eyeglass (2) forms, its technical characterictic is: additional eyeglass (2) is provided with central optical zone (3) and peripheral Optical Region (4), central optical zone (3) is positioned at the eyeglass central part or is positioned at the eyeglass central part and extends to nasal inferior quadrant to downside, the lens periphery position of inferior temporal quadrant, be prepared as circle (7), oval (8), feather spherical (9), nail-shaped (10) plano lens (5), periphery Optical Region (4) is positioned at the lens periphery position, be prepared as convex lens sheet (6), refractive diopter is+0.50DS～+ 8.00DS, primary mirror sheet (13) is prepared as monochromatic light concace mirror lens (14), two light concace mirror lens (15), progressive multi-focus lens (16).
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|---|---|---|---|
| CN 201220655323 CN202995166U (en) | 2012-11-20 | 2012-11-20 | Myopia peripheral defocus correcting glasses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220655323 CN202995166U (en) | 2012-11-20 | 2012-11-20 | Myopia peripheral defocus correcting glasses |
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| CN202995166U true CN202995166U (en) | 2013-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998810A (en) * | 2012-11-20 | 2013-03-27 | 段亚东 | Surrounding out-of-focus correction spectacles for myopia |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998810A (en) * | 2012-11-20 | 2013-03-27 | 段亚东 | Surrounding out-of-focus correction spectacles for myopia |
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Granted publication date: 20130612 Termination date: 20151120 |