KR101785993B1 - Multi function and multi focal glasses - Google Patents

Abstract

The present invention relates to a multifunctional multifocal multifocal spectacle lens, and more particularly to a multifunctional multifocal multifocal spectacle lens which mitigates optical and / or visual coupling due to astigmatism, distortion aberration, And multifunctional multifocal multifocal glasses having an increased effective range of curvature and an increased range of definition.

Description

Multifunctional multi-focal glasses {Multi function and multi focal glasses}

The present invention relates to a multifunctional multifocal multifocal eyeglass that corrects the visual function of the eye by using the optical function of the refractive lens. The multifunctional multifocal multifocal eyeglass is a multifunctional device capable of correcting and correcting the visual acuity of a wearer Focus multifocal glasses.

In general, human beings specify objects located at various distances by changing the thickness of the lens through the contraction and relaxation of the ciliary body of the eye.

Therefore, a lens has been developed which has a close-range, a medium-range and a long-distance multiple visible range in one lens in order to ensure a clearer clear distance of near, medium and long distance through one eyeglass.

1 shows a conventional multifocal lens.

Referring to FIG. 1, the conventional multifocal lens includes a distance portion for viewing a distance, a near portion for viewing a near portion, and a progressive portion for viewing a distance between a distance portion and a near portion, When two curvatures with different magnitudes are connected at one point, the center of the curvature with a small radius is placed on a line connecting a point and the center of the curvature having a large radius of curvature, and formed by two curvatures And the aspherical surface of the progressive portion is adapted to have a similar shape so that the horizontal curvature of the progressive portion forming the boundary line with the near portion becomes the same as the horizontal curvature of the progressive portion forming the boundary between the distal portion and the distal portion.

However, such a progressive multifocal lens has a plurality of curvatures in order to configure various clear distances at a long distance, a medium distance, and a short distance in one lens, and the use range of each of the distance portion, the near portion, and the progressive portion is narrowed, At a time when middle distance and near-distance use is increasing to use various IT devices such as computer and smart phone, excessive control action accelerates eye fatigue and decrease visual acuity, causing aching headache, headache and neck injury It is a fact that can not be denied that it has various problems such as.

Therefore, it is possible to improve the eye fatigue due to astigmatism, distortion aberration, prism action, etc., which are accompanied by the narrow, wide, and medium clear areas, Multifocal multifocal glasses that overcome the disadvantages of distorting and appearing distorted images.

Korean Patent Publication No. 2004-0069093

SUMMARY OF THE INVENTION It is an object of the present invention to provide a spectacle lens which has a wide gap between curvature degrees when a curvature is applied from a short distance to a long distance in order to secure various clearances on one spectacle lens. In order to solve the disadvantages, it is possible to use near distance and medium distance in a room requiring near distance and medium distance clear distance, and to use a medium distance and a long distance clear distance in outdoor, A progressive lens which eliminates the disadvantage that the astigmatism, the distortion aberration and the amount of the prism are formed so that the clear range is narrowed and the image of the object to be displayed is warped, and a multifunctional multi-focal Thereby providing multi-focal glasses.

According to an aspect of the present invention, there is provided a multifunctional multifocal lens including a progressive lens and a bifocal (bifocal) lens. The multifunctional multifocal lens includes a pair of first lenses having an intermediate distance of clear distance on the image side, (100) comprising an eyeglass frame (110) and an eyeglass frame (120) for fixing the pair of first lenses (110); And a pair of second lenses (210) coupled with the glasses (100), the pair of first lenses (110) having a long distance and the lower side having a middle distance clear distance, (200); Wherein a rotating shaft 121 including a rotation protrusion 121-1 for engaging with the spectacles clip 200 is formed at the upper end of the spectacle frame 120 so as to protrude from the lower surface of the spectacle frame 120, 200 includes a rotation engaging part 221 coupled to the rotation protrusion 121-1 of the spectacle frame 120 so as to be rotatable up and down and having an end corresponding to the bending of the rotation shaft 121, And the rotation coupling part 221 is formed of an elastic body having different properties from each other. When the spectacle clip 200 is rotated upward, the rotation coupling part 221 So that the spectacle clip 200 and the glasses 100 can be fixed at a predetermined angle by covering the end portion of the rotation shaft 121. [

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Also, the first lens 110 is characterized in that the upper side having the medium-distance explicit distance refraction and the lower side having the near-side explicit distance refraction are progressively multi-curvature progressive.

The multifunctional multi-focal multifocal eyeglass further includes a rotation shaft 121 formed on an upper rear surface of the eyeglass frame 120 so as to bend backward, And a rotation engaging part 221 wound around the outer surface of the part 121 is formed.

In addition, the near-field clear distance is 20 cm to 50 cm, the middle-distance clear distance is 50 cm to 400 cm, and the long distance clear distance is longer than the medium distance clear distance.

The multifunctional multifocal multifocal lens according to the present invention having the above-described structure enables the use of the first lens and the second lens to change the correcting refractive index of the clear distance in accordance with the intended use of the wearer, The disadvantages of astigmatism, astigmatism, distortion aberration and prism action, which were formed in spectacles, were solved.

Therefore, the optical problem is solved, and the image of the object is warped or blurred, which has the advantage of eliminating the disadvantage of causing wearer's dizziness and fatigue.

In addition, by limiting the range of the clear distance applied to one lens, it is possible to prevent the head unbalance phenomenon of the wearer due to the face movement angle, which is narrowed, and to enhance the work performance of the workers and the concentration of the examinees, And an effect of reducing eye and body fatigue by alleviating the eye control effect of the old age layer.

1 is a conceptual view showing a conventional multifocal lens.
2 is a perspective view of a multifunctional multi-focal multifocal eyeglass.
3 is a front view showing a second lens of the multifunctional multifocal multifocal lens.
4 is a front view showing a second lens of the multifunctional multifocal multifocal lens.
5 is a side view of the multifunctional multi-focal multifocal spectacle (during rotational coupling)
6 is a perspective view showing glasses of a multifunctional multi-focal multifocal spectacle (at the time of enlarging the rotation axis)
7 is a perspective view showing a clip for a spectacles of a multifunctional multifocal multifocal spectacle.
8 is a conceptual view showing the movement of the multifunctional multifocal multifocal spectacle (when the rotational shaft and the rotational coupling part are coupled)

Hereinafter, the multifunctional multifocal multifocal spectacle according to the present invention will be described in detail with reference to the drawings.

Fig. 2 is a perspective view of the multifunctional multi-focal multifocal spectacle according to the present invention.

Referring to FIG. 2, the multifunctional multifocal multifocal eyeglasses according to the present invention includes a pair of glasses 100 including a first lens 110 whose upper side has a short-distance explicit distance refraction and whose lower side has a near- And a second lens 210 coupled with the first lens 210 to have a long distance clear distance refraction at an upper side of the lens 110 and a middle distance clear distance refraction at a lower side thereof, .

In detail, the first lens 110 may be designed so that the wearer's apparent distance from the eyeglasses 100 is 20 cm to 100 cm, in order to allow the wearer of the glasses 100 to clearly view the object without feeling relatively fatigue when viewing the object in the living room. And the second lens 210 is positioned on the front side of the first lens 110 to refract the specified distance of the first lens 110 by an algebraic sum conversion so that the apparent distance of the wearer is outdoors To be useful for the activity is to compensate more than 400cm.

In addition, the first lens 110 may be composed of a progressive multi-curvature lens having an upper side having a medium-distance clear distance and a lower side having a short-side clearance distance, or a bifocal lens having no multi- have.

In FIG. 3, the first lens 100 has a multiple curvature. 3, the first lens 110 includes a middle portion 111 having a curvature for forming a middle distance clear distance, and a lower portion having a curvature for forming a near- The progressive portion 112 is formed between the middle portion 111 and the near portion 113 to gradually change the curvature of the middle portion 111 and the near portion 113 .

At this time, the first lens 110 eliminates the progressive portion 112, and the middle portion 111 and the near portion 113, where the middle portion 111 and the near portion 113 are formed larger, The user can feel discomfort due to the formation of the boundary line at the boundary, but since the progressive portion 112 in the multiple refractive lens is removed, the astigmatism and the distortion aberration are removed together, .

More specifically, the first lens 110 formed of the near portion 113, the middle portion, and the progressive portion 112 is made of a multi-focal lens, and the intermediate region and the near-point designated region are smoothly connected The first lens 110, which has a disadvantage that it is harmful to the astigmatism of the astigmatism, the distortion aberration and the prism action, and which has the near portion 113 and the middle portion 111, In this case, there is an advantage that astigmatism and distortion aberration are not generated at the boundary between the middle-range explicit region refractivity and the near-field explicit region refractivity, but there is a disadvantage in that a boundary line is formed at the upper and lower boundary points of different refractive indexes. It is optional.

At this time, various variable refractivity may be applied to the first lens 110 depending on the characteristics of the user and the purpose of use. However, the apparent distance of the near portion 113 is set to about 20 to 50 cm, The apparent distance is set to about 50 to 400 cm so that the user can comfortably see the image of the object in the room. The joining degree of the joining portion 111 is 15% to 85% of the joining degree of the near portion 113 % To limit abrupt refractive changes.

The second lens 210, which changes the refractive index of the first lens 110 to a logarithmic sum-converted refractive index, is composed of a single curvature as shown in FIG. 4 and has a single refractive index. The clear distance of the usable portion 113 is changed to 50 to 400 cm which is the medium distance clear distance and the clear distance of the heavy use portion 111 is changed to 400 cm or more which is the long distance clear distance. That is, it is configured to adjust the logarithmic sum of refractions according to the wearer's purpose and environment.

At this time, the clear distances between the near portion 113 and the middle portion 111 described above are one example corresponding to the clear distances occurring in daily life, and are not limited because they can be variously changed according to the purpose and environment of the wearer .

In the following, the signs and names of the visual acuity correction, the refractive index and the degree of addition are denoted by "S (+): raw, S (-): nearsightedness, C-: astigmatism, A: Quot; and the configuration and action of the first lens 110 and the second lens 210, which enable sharp and stable visual correction at the same time while minimizing the optical aberration and the prism phenomenon due to the multiple refractive index curvature change amount, Will be described.

In addition, the above-mentioned near-field clear distance should be set to 20 to 50 cm, medium-range clear distance to 50 to 400 cm, and remote clear distance to be 400 cm or more.

[Example 1]

When the far-field clearance distance correction refractive index of the refractive index where the first lens 110 and the second lens 210 are algebraically changed is formed to be S + 3.00 diopter, and when the medium distance clear reading correction refractive index is formed to be S + 4.25, The lens 110 is composed of the multifocal lens or the bifocal lens having the refractive power of S + 5.50 diopter and the refractive lens 111 having the refractive power of S + 4.25 diopter, It is recommended that the refractive index of the second lens 210 for algebraic summing with the first lens 110 to change the refractive index of the first lens 110 has a refractive index of S-1.25 diopter.

At this time, the adjustment degree of the near portion 113 of the multifunctional multifocal multifocal eyeglass is adjusted to Add + 2.50D.

[Example 2]

3.00, C + 1.00, A180 middle distance clear distance correction refractive index S + 4.25, C + 1.00, and A180 degrees, respectively, of the far-end clear range correcting refractive indexes of the refractive indexes in which the first lens 110 and the second lens 210 are algebraically- The first lens 110 has a refractive power of S + 5.50, C + 1.00, and A180 degrees diopter, and the first lens 110 has a refractive power of 0.65, It is recommended that the first lens 111 has a refractive index of S + 4.25, C + 1.00 and A180 degrees, and the refractive index of the second lens 210 is S-1.25 diopters.

At this time, the adjustment correction participation degree of the multifunctional multifocal multifocal eyeglass is Add + 2.50D and the adjustment degree of the near portion 113 of the first lens 110 is Add + 1.25.

[Example 3]

C + 1.00, A180 middle distance clear distance correction refractive index S + 3.00, C + 2.00, and C + 1.00, respectively. The distance between the first lens 110 and the second lens 210, 1.00 and A180 degrees, the first lens 110 has a refractive power of S + 3.70, C + 1.00 and A180 degrees diopter, and the middle portion 111 has S + 3.00, C +1.00 and A180 degrees, and the refractivity of the second lens 210 is preferably S-0.75 diopters.

At this time, the adjustment amount of the near portion 113 of the multifunctional multifocal multifocal eyeglass is adjusted to Add + 1.50D.

[Example 4]

When the far-point clear-distance correction refractive index of the refractive index in which the first lens 110 and the second lens 210 are algebraically summed is S-3.00, the short-distance bright-spot correction refractive index is S-1.75, Wherein the near portion 113 has a refractive index of S-0.50 diopter, the middle portion 111 has a refractive index of S-1.75 and the refractive power of the second lens 210 is a diopter of S-1.25 Is recommended.

At this time, the adjustment degree of the near portion 113 of the multifunctional multifocal multifocal eyeglass is adjusted to Add + 2.50D.

[Example 5]

3.00, -1.00, and A180 of the far-point clear-viewing distance correction refractive index of the first lens 110 and the second distance of the second lens 210 are S-1.75 and C-1.00 The first lens 110 has a refractive power of S-0.50 C-1.00 and a refractive power of A180 diopter when the near portion 113 is S-1.75 and C-1.00 , A refractive index of A180 degrees, and a refractive index of the second lens 210 is preferably S-1.25 diopters.

At this time, the adjustment degree of the near portion 113 of the multifunctional multifocal multifocal eyeglass is adjusted to Add + 2.50D.

[Example 6]

3.00, -1.00, and A180 of the far-field clearance distance correction refractivity of the refractive index where the first lens 110 and the second lens 210 are algebraically summed to each other are S-2.25 and C-1.00 The first lens 110 has a refractive power of S-1.50, C-1.00 and A180 degrees and a diopter of S-2.25, C- 1.00 and A180 degrees, and the refractivity of the second lens 210 is preferably S-0.75 diopters.

At this time, the adjustment amount of the near portion 113 of the multifunctional multifocal multifocal eyeglass is adjusted to Add + 1.50D.

The multi-function multifocal multifocal eyeglasses according to the present invention is configured such that the eyeglass clip 200 is reciprocally rotated up and down in a state where the eyeglasses 100 and the eyeglass clip 200 are coupled to each other, 2 lens 210 may be configured to selectively use the refractive power of the algebraic sum changed or the refractive power of the first lens 110. [

5 to 8, a rotating shaft 121 protruding rearward is formed on the upper rear surface of the spectacle frame 120, and on the upper rear surface of the clip frame 220, 121 formed on the outer circumferential surface thereof.

6, the spectacles 100 are formed on the upper rear surface of the spectacle frame 120 so as to bend downwardly toward the rear side, and the inner side of the rear side, The rotation shaft 121 is formed with a rotation protrusion 121-1 protruding from the left and right sides of the rotation shaft 121. The eyeglass clip 200 includes a clip frame 220 The rotary coupling portion 221 is formed on an upper rear surface of the rotary shaft 121 so as to correspond to the rotary shaft 121. The rotary coupling portion 221 is formed on an upper surface of the rotary shaft 121, And a fitting portion 221-1 in which the rotation protrusion 121-1 is fitted is formed on both left and right sides of the rotation shaft 121. As shown in Figure 8, The clip 200 has a structure capable of rotating up and down about the rotation axis 121.

The first lens 110 and the second lens 120 are disposed in the front and rear directions of the first lens 110 and the second lens 120, respectively, When the spectacle clip 200 is rotated upward by the rotation of the rotation protrusion 121-1 in a state where the spectacle glasses 100 and the spectacle clip 200 are horizontally arranged, It is recommended that the eyeglass clip 200 and the eyeglasses 100 be fixed at a predetermined angle by surrounding the end of the rotation shaft 121.

The rotary coupling part 221 is formed of an elastic body having different properties from the upper side to the lower side in order to be wound along the shape of the rotation shaft 121 facing each other and to be deformed in shape, It is recommended that a tensile force be formed. However, in a state in which the user wears the multifunctional multifocal multifocal eyeglass combined with each other, when the spectacle clip 200 is rotated upward to use only the function of the first lens 110 The rotation coupling part 221 is wound along the shape of the rotation shaft 121 so that the glasses 100 and the eyeglass clip 200 are fixed at a predetermined angle so that the user can adjust the function of the first lens 110 The function of combining the first lens 110 and the second lens 210 can be selectively used conveniently.

In addition, the multifunctional multifocal spectacle lens according to the present invention can use the second lens 210 as a photosensitive lens, a color-changing lens, a polarizing lens, a colorless lens, a colored lens or the like according to the user's environment and purpose.

In detail, the second lens 210 having a single curvature and positioned on the front side that is in contact with light incident on the user's eye in the first place includes various functions, so that the multifunctional multi- And improved functionality.

The technical idea should not be construed as being limited to the above-described embodiment of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, such modifications and changes are within the scope of protection of the present invention as long as it is obvious to those skilled in the art.

100: Glasses 110: First lens
111: steamer 112:
113:
120: eyeglass frame 121: rotation shaft
121-1:
200: eyeglass clip 210: second lens
220: Clip frame 221:
221-1:

Claims (6)

(100) comprising a pair of first lenses (110) whose upper side has a medium distance clearance and whose lower side has a nearest clear distance and an eyeglass frame (120) fixing the pair of first lenses (110); And
And a pair of second lenses (210) coupled to the glasses (100), the pair of first lenses (110) having a long-distance clear distance and the lower side having a middle distance clear distance 200); ≪ / RTI >
A rotating shaft 121 including a rotation protrusion 121-1 for engaging with the spectacles clip 200 is formed at the upper end of the spectacle frame 120 so as to be bent to the lower side,
The eyeglass clip 200 is coupled to the rotation protrusion 121-1 of the eyeglass frame 120 so as to be vertically rotatable and has a rotation engaging part 221 A clip frame 220 is formed,
When the eyeglass clip 200 is rotated upward, the rotation coupling portion 221 surrounds the end portion of the rotation shaft 121, And the glasses clip (200) and the glasses (100) can be fixed with a certain angle.
delete The method according to claim 1,
The multifunctional multifocal multifocal lens according to claim 1, wherein the first lens (110) comprises a progressive curvature having an incremental multi-curvature change at an upper side having a medium distance clear distance and a lower side having a near side clearance distance.
delete The method according to claim 1,
The near-field clear distance is 20 cm to 50 cm,
The above-mentioned medium-range specified distance is 50 cm to 400 cm,
Wherein the long distance clear distance is longer than the medium distance clear distance.
[2] The apparatus according to claim 1, wherein the second lens (210)
A multifocal multifocal multifocal lens, wherein the multifocal multifocal lens is one selected from a photosensitive lens, a colorless lens, a colored lens, and a polarized lens.

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