CN1794040A - Small visual field lens - Google Patents
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- CN1794040A CN1794040A CN 200510137619 CN200510137619A CN1794040A CN 1794040 A CN1794040 A CN 1794040A CN 200510137619 CN200510137619 CN 200510137619 CN 200510137619 A CN200510137619 A CN 200510137619A CN 1794040 A CN1794040 A CN 1794040A
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- 230000000007 visual effect Effects 0.000 title abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 43
- 230000007704 transition Effects 0.000 claims abstract description 40
- 238000003384 imaging method Methods 0.000 claims description 18
- 239000012535 impurity Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 10
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 206010041250 Social phobia Diseases 0.000 description 11
- 210000001508 eye Anatomy 0.000 description 11
- 238000002834 transmittance Methods 0.000 description 8
- 230000003292 diminished effect Effects 0.000 description 7
- 208000019901 Anxiety disease Diseases 0.000 description 4
- 230000036506 anxiety Effects 0.000 description 4
- 230000004438 eyesight Effects 0.000 description 4
- 210000001525 retina Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 238000001671 psychotherapy Methods 0.000 description 2
- 206010016275 Fear Diseases 0.000 description 1
- 206010047513 Vision blurred Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000005252 bulbus oculi Anatomy 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002651 drug therapy Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 208000020016 psychiatric disease Diseases 0.000 description 1
- 238000009356 triple cropping Methods 0.000 description 1
- 238000013316 zoning Methods 0.000 description 1
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Abstract
A small visual field lens is prepared as setting central clear region at center of small field lens, setting around fuzzy region at periphery of small field lens and setting diopter transition region at region between central clear region and peripheral fuzzy region.
Description
Technical field
The present invention relates to a kind of lens technology, relate to a kind of eyeglass that utilizes dioptric variation or utilization interpolation impurity to come the zoning specifically.
Background technology
Social anxiety disorder has been a kind of very common mental disease, treats social anxiety disorder at present and can be divided into psychotherapy and two kinds of ways of drug therapy.But psychotherapy only is guiding, and its effect can't know; The medicinal treatment effect also can only be kept a period of time, and the appropriate litigation fees height.A lot of patients can't break away from puzzlement for a long time, and doings are severely limited.
Existing progressive multi-focal lenses is divided into up and down two parts with lens, is respectively applied for to see far away and see closely, and this design is not to be used for the state of an illness of alleviate social anxiety patient.
Summary of the invention
Technical matters solved by the invention provides a kind of small-vision lens, make the people who suffers from social anxiety disorder under situation about not affecting one's power of vision, effectively the keeping tensions down mood can be cured as early as possible in conjunction with other means, also can help it to overcome for common people and fear the psychology of talking in the presence of all.Technical scheme of the present invention is as follows:
A kind of small-vision lens, described small-vision lens is divided into central circle of good definition and peripheral region, and described central circle of good definition is arranged on central authorities, and described peripheral region is arranged on the periphery of described central circle of good definition, and the diopter of described central circle of good definition adopts the normal number of degrees.
Described peripheral region comprises diopter zone of transition and confusion region on every side, described diopter zone of transition be arranged on described central circle of good definition and described around between the confusion region, the diopter of described diopter zone of transition is at the diopter of described central circle of good definition with on every side between the diopter of confusion region.The diopter of described peripheral region changes according to sine wave or triangular wave rule.The non-monotone variation of the diopter of described peripheral region, the dioptric amplitude of variation of described peripheral region is at least 1.00D.The blur level of the imaging of described peripheral region realizes by amplitude or the frequency that diopter changes.The variation that described diopter changes by the radius-of-curvature of the inside surface of described small-vision lens and outside surface realizes or realizes by the colourless film of pasting the diopter variation on common eyeglass, perhaps realizes by described small-vision lens material change of refractive.Described peripheral region adopts the material that has added impurity.The absolute value of the difference of diopter mxm. and minimum is at least 3.00D.The diopter of described peripheral region increasing or decreasing constantly changes.For the noncontact mirror, the region contour of described central circle of good definition is an ellipse; For contact lense, the region contour of described central circle of good definition is round.
Beneficial effect of the present invention is as follows:
The peripheral region adopts diopter to depart from, diopter changes fast, add way such as impurity, that reduces the wearer looks the thing sharpness, so if guarantee central circle of good definition all, whole or a part of effective field of view that all in human eye apparent field, just can dwindle human eye of peripheral region.Need to prove for the noncontact mirror, whole eyeglass generally all in human eye apparent field, for contact lense, only in the part of lesser ring of Merkel just in human eye apparent field.When the peripheral region adopted diopter to depart from way, the continuous variation of eyeglass surfaces externally and internally radius-of-curvature or lens materials refractive index had realized dioptric natural transition.Because the middle body number of degrees are consistent with wearer's optometry number of degrees or differ less, can normally look thing, can guarantee normally carrying out of most of doings; Though the peripheral region can not be seen clearly, can differentiate large-sized object and moving object, guarantee certain visual sensitivity.In addition, the peripheral region also can reduce its transmittance or transparency by adding impurity, can be implemented in equally under the situation that guarantees certain visual sensitivity and dwindles effective field of view.
Can help the user to finish current doings giocoso, need not the psychology struggle, also need not take medicine.Long-term use does not only have psychological burden, and can help it to set up good thinking order, in the face of life, finally breaks away from puzzlement in proud array.
Description of drawings
Fig. 1 is an eyeglass block plan of the present invention;
Fig. 2 is a longitudinal sectional drawing of the present invention;
One of Fig. 3 preferred embodiment of the present invention and two diopter functional arrangement;
Three diopter functional arrangements of Fig. 4 preferred embodiment of the present invention;
Fig. 5 sharpness functional arrangement;
Fig. 6 eyes imaging schematic diagram;
Five diopter functional arrangements of Fig. 7 preferred embodiment of the present invention.
Embodiment
Because the social anxiety disorder patient fears the crowd that faces, so the most direct way is dwindled its effective field of view exactly, keeping tensions down psychology.A direct way of dwindling wearer's effective field of view is exactly that what make that it watches by the peripheral region is a fuzzy image, and this can realize by number of ways.
In order to achieve the above object, can realize by the optical texture and the material that change the peripheral region.Adopt non-smooth surface as the peripheral region, the peripheral region diopter departs from more greatly, and the peripheral region diopter changes fast, and the peripheral region adds impurity or the like way, and each way all will be considered blur effect and outward appearance two aspect factors.
According to the glasses image-forming principle, when the eyeglass number of degrees and the human eye optometry number of degrees differ bigger, human eye clear look outside the thing focus adjustment scope and fixture apart from the time, human eye can't be seen the scenery of front clearly, it is big more that the number of degrees differ, the scenery of seeing is fuzzy more.If so eyeglass central authorities adopt the normal number of degrees, and adopt the number of degrees that deviation is bigger on every side, just can dwindle the effective field of view of human eye.These number of degrees that adopt should be read the additional number of degrees greater than the progressive multi-focus lens that is fit to the wearer.In central authorities and the transition portion on every side can be by eyeglass surfaces externally and internally radius-of-curvature or lens materials the continuous variation of refractive index realize the nature transition.Need to prove that transition portion on the one hand because the number of degrees depart from, also can cause the dimness of vision owing to the continuous variation of focus on the other hand.That is to say and utilize dioptric departing from more greatly can both cause blurred vision with two kinds of ways of dioptric continuous variation.Though the confusion region can not be seen clearly on every side, can differentiate large-sized object and moving object, guarantee certain visual sensitivity.When the patient visual field reduced to one than the zonule after, can eliminate its nervous psychology effectively.Simultaneously, thing can be normally looked, normally carrying out of most of doings can be guaranteed because the middle body number of degrees are consistent with wearer's optometry number of degrees or differ less.
On the whole, the dioptric variation in peripheral region can be divided into three kinds: there is not confusion region on every side this moment in diopter continuous increasing or successively decrease; The diopter increasing or decreasing no longer changes after certain is worth, and the confusion region exists around this moment, and the difference of confusion region and central circle of good definition diopter is bigger around still requiring; The non-back and forth monotone variation of diopter.
The variation of the refractive index of material and lens surface radius-of-curvature can both change the eyeglass diopter, therefore can carry out subregion to the different parts of lens by the refractive index of change lens material and the radius-of-curvature of lens surface.The profile of eyeglass can be selected different shapes for use with each subregion, but will guarantee to divide different zones according to means such as the transmittance of dioptric variation, eyeglass or transparency change on eyeglass.The subregion of eyeglass also not necessarily from inside outwards divides, in theory as long as exist circle of good definition and confusion region just passable simultaneously.
Lens is divided into contact lense and noncontact mirror, and contact lense refers generally to the glasses that contact with cornea, promptly usually said contact lenses; The noncontact mirror refers generally to frame eyeglasses, and the present invention can be used for contact lense and noncontact mirror.Principle in the embodiment of the invention can be applicable to contact lense and noncontact mirror simultaneously.Consider the difference of contact lense and noncontact mirror, the central circle of good definition of noncontact mirror is oval relatively good, can keep a flat visual field; And the central circle of good definition of contact lense is circular relatively good, can keep a stable visual field that does not have directivity.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As depicted in figs. 1 and 2, the preferred embodiments of the present invention adopt circular eyeglass, and this eyeglass is divided into three zones, radius r by three concentric circless
0The Regional Representative central authorities circle of good definition 1 of expression, radius r
1Regional Representative's diopter zone of transition 2, radius r
2The Regional Representative around confusion region 3.
One of the preferred embodiments of the present invention
In the preferred embodiments of the present invention, central authorities select flat mirror for use in circle of good definition 1, confusion region 3 is selected convex lens for use on every side, so the diopter that central circle of good definition 1 is selected for use is 0, the diopter of confusion region 3 adds the bigger number of degrees on the dioptric basis of central circle of good definition 1 on every side, central circle of good definition 1 and on every side the absolute value of the dioptric difference of confusion region 3 more than 3D, be advisable.The diopter of diopter zone of transition 2 is between central circle of good definition 1 with on every side between the diopter of confusion region 3, and changes continuously, realizes the nature transition.
Below in conjunction with one of Fig. 3 preferred embodiment of the present invention and two diopter functional arrangement, Fig. 5 sharpness functional arrangement, one of the preferred embodiment is done detailed description.
Among Fig. 3, horizontal ordinate is represented with the eyeglass radius r, represents the radius of this preferred embodiment; The longitudinal axis is represented diopter with function f (r) expression.Function curve above the transverse axis is represented diopter more than or equal to zero situation, and central circle of good definition 1, radius are r
0, select flat mirror for use, promptly diopter is zero; Confusion region 3 radiuses are r on every side
2, select convex lens for use, diopter is certain value greater than zero; The radius of diopter zone of transition 2 is r
1, diopter is between central circle of good definition 1 with on every side between the diopter of confusion region 3, and changes continuously, realizes the nature transition.
Shown in Fig. 5 sharpness functional arrangement, horizontal ordinate is represented with radius r, represents the radius of this preferred embodiment, and ordinate is represented sharpness with v (r) expression.When r can access maximum sharpness during in central circle of good definition 1; In the sharpness that diopter zone of transition 2 obtains changing, sharpness changes to a less value from maximum; When r is around in the confusion region 3, obtain a less sharpness.Certainly can not want confusion region 3 yet around, and promptly the peripheral region diopter increases always continuously.
Wear patient of the present invention and can clearly see target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
Two of the preferred embodiment of the present invention
In the preferred embodiments of the present invention, central circle of good definition 1 is selected flat mirror for use, and confusion region 3 is selected concavees lens for use on every side.
The diopter that central circle of good definition 1 of the present invention is selected for use is 0, the diopter of confusion region 3 is selected for use on the dioptric basis of central circle of good definition 1 and is subtracted the bigger number of degrees on every side, central circle of good definition 1 and on every side the absolute value of the dioptric difference of confusion region 3 more than 3.00D, be advisable.The diopter of diopter zone of transition 2 is between central circle of good definition 1 with on every side between the diopter of confusion region 3, and changes continuously, realizes the nature transition.
Down in conjunction with one of Fig. 3 preferred embodiment of the present invention and two diopter functional arrangements, Fig. 5 sharpness functional arrangement, two of the preferred embodiment is done detailed description.
In the two diopter functional arrangements of Fig. 3 preferred embodiment of the present invention, horizontal ordinate is represented with r, represents the radius of this preferred embodiment; The longitudinal axis is represented diopter with function f (r) expression.Function curve below the transverse axis is represented diopter smaller or equal to zero situation, and the radius of central circle of good definition 1 is r
0, select flat mirror for use, promptly diopter is zero; 3 zones, confusion region are greater than r on every side
1Less than r
2Between, select concavees lens for use, diopter is minus certain value; R is got in the zone of diopter zone of transition 2
1-r
0Between value, diopter is between central circle of good definition 1 with on every side between the diopter of confusion region 3, and changes continuously, realizes the nature transition.Can not want confusion region 3 yet on every side, and promptly the peripheral region diopter reduces always continuously.
Shown in Fig. 5 sharpness functional arrangement, horizontal ordinate is represented with r, represents the radius of this preferred embodiment, and ordinate is represented sharpness with v (r) expression.When r is in central circle of good definition 1, obtain maximum sharpness; When r at r
1-r
0Between regional the time, the sharpness that in this zone, obtains changing, sharpness changes to a less value from maximum; When r gets r
2-r
1Between value the time, promptly confusion region 3 around obtains a less sharpness in this zone.
Wear patient of the present invention and can clearly see target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
Annotate: preferred embodiment one, two supposes that all wearer's optometry number of degrees are 0D, promptly need not to correct.
Three of the preferred embodiment of the present invention
Following three diopter functional arrangements in conjunction with Fig. 5 sharpness functional arrangement, Fig. 4 preferred embodiment of the present invention are to the detailed description of the triple-cropping of the preferred embodiment.
Also carry out subregion in the preferred embodiments of the present invention by Fig. 1, confusion region 3 is selected convex lens for use on every side, central authorities select concavees lens for use in circle of good definition 1, and the interior outer curvature radius of diopter zone of transition 2 changes continuously, realize that diopter is at central circle of good definition 1 and continuous transition between the confusion region 3 on every side.Like this, when wearer's eyesight number of degrees and the central fovea lens number of degrees met, the concavees lens of central circle of good definition 1 can be corrected defects of vision.Diopter zone of transition 2 and on every side confusion region 3 be confusion region, the visual field, thereby can dwindle effective field of view, the psychological pressure of alleviate social anxiety patient.Can not want confusion region 3 yet on every side, and promptly the peripheral region diopter increases always continuously.
The image formation by rays that enters by central circle of good definition 1 is on retina, and peripheral part of scenery is not imaged on the retina.
Wear patient of the present invention and can clearly see target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
Shown in three diopter functional arrangements of Fig. 4 preferred embodiment of the present invention, horizontal ordinate is represented radius of the present invention, and ordinate is represented diopter.When r less than r
0The time, diopter represents that less than zero central circle of good definition 1 adopts concavees lens; When r at r
2-r
1Between regional the time, diopter is greater than zero, convex lens are adopted in confusion region 3 around the expression; When r at r
2-r
1Between regional the time, the diopter of expression diopter zone of transition 2 is between central circle of good definition 1 with on every side between the confusion region 3.
Shown in Fig. 5 sharpness functional arrangement, horizontal ordinate is represented with r, represents the radius of this preferred embodiment, and ordinate is represented sharpness with v (r) expression.R obtains maximum sharpness in central circle of good definition 1; When the sharpness that r obtains changing in diopter zone of transition 2, sharpness changes to a less value from maximum; When r obtains a less sharpness in the confusion region 3 around.
Wear patient of the present invention and can clearly see target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
Four of the preferred embodiment of the present invention
The foregoing description with reference to one of Fig. 3 preferred embodiment of the present invention and two diopter functional arrangement, three diopter functional arrangements of Fig. 4 preferred embodiment of the present invention, Fig. 5 sharpness functional arrangement be described, below in conjunction with Fig. 6 eyes imaging schematic diagram this preferred embodiment is described in detail.
In this preferred embodiment, central circle of good definition 1 is selected concavees lens for use, and confusion region 3 is selected convex lens for use on every side.Can not want confusion region 3 yet on every side, and promptly the peripheral region diopter increases always continuously.Central authorities choose patient's the best optometry number of degrees in circle of good definition 1, and the number of degrees chosen of confusion region 3 are advisable more than the diopter 3.00D of the diopter of confusion region 3 greater than central circle of good definition 1 on every side greater than the best optometry number of degrees on every side.
Shown in Fig. 6 eyes imaging schematic diagram, if the diopter of central area is got patient's best diopter, diopter zone of transition 2, confusion region 3 is greater than best diopter on every side, like this, can in people's eyeball, be divided into transition imaging area 61, blur-free imaging district 62, fuzzy 63 3 imaging areas of imaging area.The amphiblestroid subregion of representative, blur-free imaging district 62 forms image from the light of central circle of good definition 1 in this zone, makes the people see distinct image; Transition imaging area 61 representative is from the nearer zone of retina, at this regional imaging, makes people seem slightly show fuzzy at this regional image from the image of diopter zone of transition 2; Fuzzy imaging area 63 representatives are from retina zone far away, and the image of confusion region 3 makes the people seem fuzzyyer at this regional imaging at this regional image on every side, can only see the profile of object.
Wear patient of the present invention and can clearly see target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
Also can adopt combination to join the method for mirror when noncontact mirror central authorities circle of good definition not simultaneously with confusion region lens type on every side, promptly the wearer wears a secondary common contact lense and a copy simultaneously and invents described noncontact mirror.Such as central circle of good definition is concavees lens, when the confusion region is convex lens, can make the contact lense number of degrees be just (non-gradual change) on every side, and the whole noncontact mirror number of degrees are negative (gradual change).This be equivalent to described each regional number of degrees of noncontact mirror eyeglass all deduct one fixing on the occasion of, make the eyeglass number of degrees totally for negative.
Five of the preferred embodiment of the present invention
Below in conjunction with five diopter functional arrangements, Fig. 5 sharpness functional arrangement of Fig. 7 preferred embodiment of the present invention, the preferred embodiment is done detailed description.
Non-monotone variation is chosen in the dioptric variation of peripheral region, and in this preferred embodiment, diopter changes according to sinusoidal rule.With reference to five diopter functional arrangements of Fig. 7 preferred embodiment of the present invention, horizontal ordinate is represented with r, represents the radius of this preferred embodiment; The longitudinal axis is represented diopter with function f (r) expression.Function curve below the transverse axis is represented diopter smaller or equal to zero situation, and the radius of central circle of good definition 1 is r
0, select concavees lens for use; The peripheral region is greater than r
0The zone, the diopter of peripheral region changes according to being similar to sinusoidal wave rule.Certainly, the diopter of peripheral region also can change according to other rule such as triangular wave.
Shown in Fig. 5 sharpness functional arrangement, horizontal ordinate is represented with r, represents the radius of this preferred embodiment, and ordinate is represented sharpness with v (r) expression.The value of the r of central authorities circle of good definition 1 is at 0-r
0Between, in this zone, can access maximum sharpness; In the district, the value of r is r around
2-r
1,, cause into image focus and change continuously, so the sharpness of imaging is lower in this zone because diopter changes back and forth fast.For this situation, cause fuzzy key element to comprise amplitude and change frequency that diopter changes, at this moment, guarantee certain change frequency, amplitude of variation gets final product more than 1.00D, and promptly the difference of diopter absolute value is at least 1.00D in the eyeglass.
Wear patient of the present invention and can clearly see target object, and what see is a fuzzy image in the district around, so effective field of view diminished, social anxiety disorder patient's psychological stress is eased by central circle of good definition.
Six of the preferred embodiment of the present invention
Also can carry out subregion to these lens, make the transmittance or the transparency difference of the zones of different of lens, reach the purpose of lens being carried out partition by adding impurity in the eyeglass zones of different.
This preferred embodiment six in, with reference to shown in Figure 1, the diopter of central circle of good definition 1 is the normal number of degrees, this part does not add impurity; The peripheral region can reduce the transmittance of this part or reduce the transparency of this part by adding non-homogeneous impurity by adding uniform impurity.Wherein, add even foreign pigment and be equivalent to reduce the transmittance of this part, just reduce brightness, just have positive effect when dye levels is higher by the imaging of this zonal ray to eyeglass dyeing; When adding non-homogeneous impurity, can reduce the transmittance of this part on the one hand, can cause light scatter on the other hand, reduce transparency, make by this zonal ray imaging to thicken.
In this preferred embodiment, the transmittance and the transparency of central circle of good definition 1 are the highest, and therefore in this zone, the user can see target object the most clearly; Diopter zone of transition 2 and on every side the transmittance of confusion region 3 or transparency reduce with respect to central circle of good definition 1, so the sharpness of the object seen of user reduces than circle of good definition 1, reached the purpose of reduced field of view.
Employing is added even impurity when reducing the way of visible light transmissivity to the peripheral region, just changes over the brightness of picture, and deformation does not take place imaging.If select haptic lens for use, the diameter of central circle of good definition 1 is less than 3mm, and diopter zone of transition 2, the visible light transmissivity of confusion region 3 unit areas should be chosen less than 1/3 of central circle of good definition and be advisable on every side.Adopt when adding non-homogeneous impurity reduction peripheral region transparency way, can keep whole eyeglass colourless basically by selecting suitable material.
Wear patient of the present invention and can clearly be seen target object by central circle of good definition 1, and in diopter zone of transition 2, confusion region 3 sees on every side is an image that becomes more and more fuzzyyer, therefore effective field of view has diminished, and social anxiety disorder patient's psychological stress is eased.
In the various embodiments described above, the size of central circle of good definition 1 and diopter zone of transition 2, the blur level of confusion region 3 should be decided according to wearer's (patient) concrete conditions such as psychological condition on every side.In general, when the social anxiety degree of wearer was higher, it was less to join central circle of good definition 1, diopter zone of transition 2, the bigger eyeglass of confusion region 3 blur leveles on every side.And, can progressively strengthen the area of central circle of good definition 1 along with the alleviation of the social anxiety of wearer, reduce the blur level of confusion region, up to the same with common spectacles.
Also can realize for dioptric variation on the eyeglass by the colourless film of on common eyeglass, pasting the diopter variation.The easy subsides of this film are easily got, the convenient use.
Claims (10)
1, a kind of small-vision lens, it is characterized in that described small-vision lens is divided into central circle of good definition and peripheral region, described central circle of good definition is arranged on central authorities, described peripheral region is arranged on the periphery of described central circle of good definition, and the diopter of described central circle of good definition adopts the normal number of degrees.
2, small-vision lens according to claim 1, it is characterized in that, described peripheral region comprises diopter zone of transition and confusion region on every side, described diopter zone of transition be arranged on described central circle of good definition and described around between the confusion region, the diopter of described diopter zone of transition is at the diopter of described central circle of good definition with on every side between the diopter of confusion region.
3, small-vision lens according to claim 1 is characterized in that, the diopter of described peripheral region increasing or decreasing constantly changes.
4, small-vision lens according to claim 1 is characterized in that, the non-monotone variation of the diopter of described peripheral region.
5, small-vision lens according to claim 4 is characterized in that, the diopter of described peripheral region changes according to sine wave or triangular wave rule, and the dioptric amplitude of variation of described peripheral region is at least 1.00D.
6, small-vision lens according to claim 5 is characterized in that, the blur level of the imaging of described peripheral region realizes by amplitude or the frequency that diopter changes.
7, according to each described small-vision lens of claim 1 to 6, it is characterized in that, the variation that described diopter changes by the radius-of-curvature of the inside surface of described small-vision lens and outside surface realizes or realizes by the colourless film of pasting the diopter variation on common eyeglass, perhaps realizes by described small-vision lens material change of refractive.
8, small-vision lens according to claim 1 is characterized in that, described peripheral region adopts the material that has added impurity.
According to the described small-vision lens of claim 2 to 3, it is characterized in that 9, the absolute value of the difference of diopter mxm. and minimum is at least 3.00D.
10, small-vision lens according to claim 1 is characterized in that, for the noncontact mirror, the region contour of described central circle of good definition is an ellipse; For contact lense, the region contour of described central circle of good definition is round.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510137619 CN1794040A (en) | 2005-12-26 | 2005-12-26 | Small visual field lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510137619 CN1794040A (en) | 2005-12-26 | 2005-12-26 | Small visual field lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1794040A true CN1794040A (en) | 2006-06-28 |
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ID=36805583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510137619 Pending CN1794040A (en) | 2005-12-26 | 2005-12-26 | Small visual field lens |
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| CN (1) | CN1794040A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926711A (en) * | 2013-01-14 | 2014-07-16 | 九扬贸易有限公司 | Optical lens for controlling eye axis growth |
| WO2023247930A1 (en) * | 2022-06-21 | 2023-12-28 | Coopervision International Limited | Contact lenses and methods relating thereto |
-
2005
- 2005-12-26 CN CN 200510137619 patent/CN1794040A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926711A (en) * | 2013-01-14 | 2014-07-16 | 九扬贸易有限公司 | Optical lens for controlling eye axis growth |
| WO2023247930A1 (en) * | 2022-06-21 | 2023-12-28 | Coopervision International Limited | Contact lenses and methods relating thereto |
| GB2634475A (en) * | 2022-06-21 | 2025-04-09 | Coopervision Int Ltd | Contact lenses and methods relating thereto |
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