CN104181701B - Lens device and vision control method - Google Patents
Lens device and vision control method Download PDFInfo
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- CN104181701B CN104181701B CN201310199327.1A CN201310199327A CN104181701B CN 104181701 B CN104181701 B CN 104181701B CN 201310199327 A CN201310199327 A CN 201310199327A CN 104181701 B CN104181701 B CN 104181701B
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Abstract
A kind of lens device, wears for a user, and forms picture for light near a retina or this retina by the eyeball entering this user, and it comprises a central optical zone and around the peripheral optical district of this central optical zone.This central optical zone is in order to make by the image formation by rays of this central optical zone on this retina.This peripheral optical district has the curvature section that multistage is connected, respectively this curvature section is in order to make the image formation by rays passed through near this retina, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays and this amphiblestroid apart from different, and the position of described imaging is all positioned at this amphiblestroid front adjacent, or be all positioned near this amphiblestroid rear.Whereby, increasing by the position of the image formation by rays in this peripheral optical district is close or the probability of position in the position with retina optimum distance.
Description
Technical field
The present invention relates to a kind of lens device, particularly relate to a kind of lens device for eyesight control and vision control method.
Background technology
Consult Fig. 1 and Fig. 2, existing a kind of eyeglass 1 controlled for myopia, comprise the central optical zone 11 and of a circle around the peripheral optical district 12 around central optical zone 11, central optical zone 11 and peripheral optical district 12 have single curvature separately, wherein central optical zone 11 is with the use of person's eyesight, in order to make light clearly image on retina 19,12, peripheral optical district is the Q point making image formation by rays before retina 19.Thus, image clearly can be provided in visual field central authorities, simultaneously because the number of degrees of peripheral visual field are slightly not enough, can delay or stop the situation of myopia development.
Each money eyeglass that manufacturer manufactures, different central optical zones 11 is mainly provided to select according to its number of degrees to user, the single curvature of the default number of degrees of number of degrees minimizing one adopted compared with central optical zone 11 for 12, peripheral optical district, so, when supposing that the eyeball of people is the body of rule, the distance of Q point and retina 19 will as expected estimated by.But why current research it be unclear that the distance of aforesaid Q point and retina the best, and therefore the curvature selection in peripheral optical district 12 can be a problem.In addition, the eyeball of people and retina 19 are not the body of absolute rule, and therefore aforesaid Q point and amphiblestroid distance actually might not as in advance.Therefore, how the position of the imaging in peripheral optical district 12 designed and the eyeball of most people can be applicable to, reach the object delaying or stop myopia development of expection, just becoming the theme that is worth research.
Summary of the invention
The object of the present invention is to provide a kind of lens device that the multiple image out of focus in various degree of peripheral visual field is provided.
Lens device of the present invention, wear for a user, and the eyeball passing through for light and enter this user forms picture near a retina or this retina, this lens device comprises: a central optical zone, in order to make by the image formation by rays of this central optical zone on this retina; This lens device also comprises:
One around the peripheral optical district of this central optical zone, there is the curvature section that multistage is connected, respectively this curvature section is in order to make the image formation by rays passed through near this retina, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays and this amphiblestroid apart from different, and the position of described imaging is all positioned at this amphiblestroid front adjacent, or be all positioned near this amphiblestroid rear.
Preferably, the intersection of described curvature section is discontinuous stepped or be connected continuously.
Preferably, comparatively this central optical zone is low for the degree of crook in this peripheral optical district.
Preferably, this lens device is an eyeglass or a contact lens.
Preferably, this lens device also comprises one around the marginarium in this peripheral optical district, this marginarium comprises a multiple prism section extended away from the radial direction on the outside surface of this eyeball at this lens device, described prism section is all thick by being thinned in a clockwise direction, or all with counterclockwise thick by being thinned to, make this lens device be subject to caused by the action of user's nictation with predetermined speed in time wearing and rotate, and then the described curvature section in this peripheral optical district and the position of image formation by rays are rotated with predetermined speed.
More preferably, this lens device is a contact lens.
Another object of the present invention is to provide a kind of vision control method that the multiple image out of focus in various degree of peripheral visual field is provided.
Vision control method of the present invention comprises: make a lens device be positioned at an eyeball front, utilizes the curvature of a central optical zone of this lens device to make by the image formation by rays of this central optical zone on this retina, and provides a sharp image in visual field central authorities; The method also comprises:
Utilize the curvature of a first curvature section of this lens device to make by the image formation by rays of this first curvature section in last first distance of this retina, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance.
Utilize the curvature of a torsion section of this lens device to make by the image formation by rays of this torsion section in the last second distance place of this retina, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance.
This first distance is different from this second distance and be all greater than zero.
Preferably, rotate with predetermined speed by this lens device in this eyeball front, and then first, second curvature section in this peripheral optical district and light are rotated with predetermined speed by the position of imaging after first, second curvature section aforementioned.
Another object of the present invention is to provide a kind of vision control method providing the multiple image out of focus in various degree of peripheral visual field.
Vision control method of the present invention comprises: make a lens device be positioned at an eyeball front, utilizes the curvature of a central optical zone of this lens device to make by the image formation by rays of this central optical zone on this retina, and provides a sharp image in visual field central authorities; The method also comprises:
Utilize image formation by rays one first distance after this retina that the curvature of a first curvature section of this lens device makes by this first curvature section, and provide one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance.
Utilize image formation by rays second distance place after this retina that the curvature of a torsion section of this lens device makes by this torsion section, and provide one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance.
This first distance is different from this second distance and be all greater than zero.
Preferably, rotate with predetermined speed by this lens device in this eyeball front, and then first, second curvature section in this peripheral optical district and light are rotated with predetermined speed by the position of imaging after first, second curvature section aforementioned.
Beneficial effect of the present invention is: the position being made the image formation by rays multiple different distance near this retina passed through by this peripheral optical district, the position increasing imaging near or the probability of position in the position with retina optimum distance, and the eyeball of most people can be applicable to, reach the object delaying or stop vision error heighten degree of expection.
Accompanying drawing explanation
Fig. 1 is a floor map, and prior art is described;
Fig. 2 is a light path schematic diagram, and prior art is described;
Fig. 3 is a floor map, and the first preferred embodiment of lens device of the present invention is described;
Fig. 4 is a light path schematic diagram, and this first preferred embodiment is described;
Fig. 5 is a floor map, and the second preferred embodiment of lens device of the present invention is described; And
Fig. 6 is an elevational schematic view, and the prism section of this second preferred embodiment is described.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 3 and Fig. 4, first preferred embodiment of lens device 2 of the present invention, wear for a user, and pass through and enter an eyeball 3 of this user and image near a retina 31 or this retina 31 for light, this lens device 2 comprises a central optical zone 21 and around the peripheral optical district 22 of this central optical zone 21.
The curvature of this central optical zone 21 can make by the image formation by rays of this central optical zone 21 on this retina 31, and provides image clearly in visual field central authorities.
This peripheral optical district 22 has the curvature section that multistage is connected, that there are four curvature sections in the present embodiment, be respectively first curvature section 221, torsion section 222, the 3rd curvature section 223 and the 4th curvature section 224, but not as limit, also can be two, three, five and more than, or even 360 namely often spend a curvature section.
Respectively this curvature section is in order to make the image formation by rays passed through near this retina 31, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays different from the distance of this retina 31, and provide multiple image out of focus in various degree in peripheral visual field, make the position of imaging near or the probability of position in the position with retina optimum distance increase.
A kind of vision control method of the present invention, wears above-mentioned lens device 2 for user, and can be applicable to the eyeball of most people, reaches the object delaying or stop vision error heighten degree of expection.
It should be noted that, the position of aforesaid image formation by rays is different from the distance of this retina 31, caused by the degree of crook that two adjacent curvature sections are different, because the retina 31 of user is in erratic body, in general, although this distance of the position of image formation by rays and this retina 31 can more difficult prediction, the position that still can increase imaging near or the probability that occurs in this situation with retina optimum distance of position.In Fig. 4, signal presents first curvature section 221 in the present embodiment and makes the distance d1 of the primary importance P1 of image formation by rays and retina 31 and the 3rd curvature section 223 make the distance d3 of the 3rd position P3 of image formation by rays and retina 31 different.In the present embodiment, the degree of crook of this four curvature section is all not identical, but not as limit, such as, also can be that first curvature section 221 is identical with the 3rd curvature section 223, torsion section 222 is identical with the 4th curvature section 224, and first curvature section 221 be different from torsion section 222.So, the first curvature section 221 of this lens device 2 is utilized to make one first distance of by the image formation by rays of this first curvature section 221 before this retina 31 (or rear), and providing one first image out of focus in peripheral visual field, the distance of this retina and this first distance is the first distance; The torsion section 222 of this lens device 2 is utilized to make a second distance place of by the image formation by rays of this torsion section 222 before this retina 31 (or rear), and providing one second image out of focus in peripheral visual field, the distance at this retina and this second distance place is second distance; First distance is different from second distance and be all greater than zero.
It should be noted that, lens device 2 of the present invention is feasible in manufacture, as as described in european patent number EP0872307, turning method is mainly used to add the vibrations of fixing a cutting tool, its principle is to make the vibrations of cutter accurately coordinate the rotation of the rotating shaft of lathe, therefore revolve in rotating shaft in the process turned around, the degree of depth of cutter cutting can change according to the angle rotated, and can produce nonaxisymmetrical eyeglass.
It is worth mentioning that, in the present embodiment, the position of described imaging is all positioned at the front adjacent of this retina 31, or near the rear being all positioned at this retina 31.
More specifically, the degree of crook in this peripheral optical district 22 or rectification number of degrees provided are provided comparatively this central optical zone 21 is low, that is, during for treatment myopia, user is to be corrected front image-forming range too short, and after putting on this lens device 2, after this central optical zone 21 is corrected, light can be imaged on retina 31, and light can image in the front adjacent of this retina 31 after this peripheral optical district 22 corrects.On the contrary, during for treatment long sight, user to be corrected front image-forming range long, and after putting on this lens device 2, after central optical zone 21 is corrected, light can be imaged on retina 31 equally, and light can image near this retina 31 rear after this peripheral optical district 22 corrects.
What remark additionally is, the intersection of described curvature section can in discontinuous stepped, and also can be connected continuously, progressively, two kinds of modes be all feasible, visual demand uses different designs, such as, can select according to the restriction manufactured or the restriction of optic diameter size.This lens device 2 is a contact lens in the present embodiment, but also can be an eyeglass.
Consult Fig. 5, 6, second preferred embodiment of lens device 2 of the present invention is roughly the same with the first embodiment, its difference be in this lens device 2 of the present embodiment be aim at designed by contact lens, this lens device 2 also comprises one around the marginarium 23 in this peripheral optical district 22, this marginarium 23 comprises a multiple prism section 231 extended away from the radial direction on the outside surface of this eyeball 3 at this lens device 2, described prism section 231 is all thick by being thinned in a clockwise direction in the present embodiment, but not as limit, also can be all with counterclockwise thick by being thinned to, adjust whereby thin and thick between difference in height distance, gradient, the action that this lens device 2 is blinked because of user with predetermined speed in time wearing and rotating with predetermined speed in this eyeball front, and then the multistage curvature section in this peripheral optical district 22 and light are rotated with predetermined speed by the position of imaging after the multistage curvature section in peripheral optical district 22.Thus, retina 31 (see Fig. 4) some part upper can be avoided to continue there is not good distance with the position of imaging, and the eyeball 3 of most people can be applicable to, reach the object delaying or stop vision error heighten degree of expection.
In sum, the position of the image formation by rays multiple different distance near this retina 31 passed through is made by this peripheral optical district 22, make the position of imaging near or position increase in the probability of the position with retina 31 optimum distance, and by the rotation of lens device 2, some part on retina 31 is avoided to continue there is not good distance with the position of imaging, and the eyeball 3 of most people can be applicable to, reach the object delaying or stop vision error heighten degree of expection, therefore really can reach the object of the present invention.
As described above, be only the preferred embodiment of the present invention, and when can not limit the scope of the invention process with this, the simple equivalence namely generally done according to the claims in the present invention and invention description content changes and modifies, and all still belongs to the scope that the present invention is contained.
Claims (3)
1. a lens device, wear for a user, and the eyeball passing through for light and enter this user forms picture near a retina or this retina, this lens device comprises: a central optical zone, in order to make by the image formation by rays of this central optical zone on this retina; It is characterized in that, this lens device also comprises:
One around the peripheral optical district of this central optical zone, there is the curvature section that multistage is connected, respectively this curvature section is in order to make the image formation by rays passed through near this retina, the degree of crook of two adjacent curvature sections is different, and make the position of image formation by rays and this amphiblestroid apart from different, and the position of described imaging is all positioned at this amphiblestroid front adjacent, or be all positioned near this amphiblestroid rear; And
One around the marginarium in this peripheral optical district, this marginarium comprises a multiple prism section extended away from the radial direction on the outside surface of this eyeball at this lens device, described prism section is all thick by being thinned in a clockwise direction, or all with counterclockwise thick by being thinned to, make this lens device be subject to caused by the action of user's nictation with predetermined speed in time wearing and rotate, and then the described curvature section in this peripheral optical district and the position of image formation by rays are rotated with predetermined speed;
Wherein, this lens device is a contact lens.
2. lens device according to claim 1, is characterized in that: the intersection of described curvature section is discontinuous stepped or be connected continuously.
3. lens device according to claim 1, is characterized in that: comparatively this central optical zone is low for the degree of crook in this peripheral optical district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199327.1A CN104181701B (en) | 2013-05-24 | 2013-05-24 | Lens device and vision control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310199327.1A CN104181701B (en) | 2013-05-24 | 2013-05-24 | Lens device and vision control method |
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| Publication Number | Publication Date |
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| CN104181701A CN104181701A (en) | 2014-12-03 |
| CN104181701B true CN104181701B (en) | 2016-04-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405867A (en) * | 2015-07-28 | 2017-02-15 | 亨泰光学股份有限公司 | Contact lens and processing method thereof |
| CN118550101A (en) * | 2018-03-01 | 2024-08-27 | 依视路国际公司 | Lens element |
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| CN1070743A (en) * | 1991-07-10 | 1993-04-07 | 庄臣及庄臣视力产品有限公司 | Segmented multifocal contact lens and manufacture method thereof |
| US5512220A (en) * | 1991-07-10 | 1996-04-30 | Johnson & Johnson Vision Products, Inc. | Method of making a clear axis, segmented multifocal ophthalmic lens |
| CN101467092A (en) * | 2006-06-08 | 2009-06-24 | 视力Crc有限公司 | Means for controlling the progression of myopia |
| CN102262307A (en) * | 2011-08-17 | 2011-11-30 | 陈迪生 | New soft cornea contact lens |
| CN102906631A (en) * | 2010-03-03 | 2013-01-30 | 华柏恩视觉研究中心 | Contact lenses for myopic eyes and methods of treating myopia |
| CN202748558U (en) * | 2012-09-17 | 2013-02-20 | 无锡市天视力医药信息研究有限责任公司 | Myopia-preventing soft contact lens |
| CN203299469U (en) * | 2013-05-24 | 2013-11-20 | 亨泰光学有限公司 | Lens device |
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2013
- 2013-05-24 CN CN201310199327.1A patent/CN104181701B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1070743A (en) * | 1991-07-10 | 1993-04-07 | 庄臣及庄臣视力产品有限公司 | Segmented multifocal contact lens and manufacture method thereof |
| US5512220A (en) * | 1991-07-10 | 1996-04-30 | Johnson & Johnson Vision Products, Inc. | Method of making a clear axis, segmented multifocal ophthalmic lens |
| CN101467092A (en) * | 2006-06-08 | 2009-06-24 | 视力Crc有限公司 | Means for controlling the progression of myopia |
| CN102906631A (en) * | 2010-03-03 | 2013-01-30 | 华柏恩视觉研究中心 | Contact lenses for myopic eyes and methods of treating myopia |
| CN102262307A (en) * | 2011-08-17 | 2011-11-30 | 陈迪生 | New soft cornea contact lens |
| CN202748558U (en) * | 2012-09-17 | 2013-02-20 | 无锡市天视力医药信息研究有限责任公司 | Myopia-preventing soft contact lens |
| CN203299469U (en) * | 2013-05-24 | 2013-11-20 | 亨泰光学有限公司 | Lens device |
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| CN104181701A (en) | 2014-12-03 |
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