TWM615046U - Intelligent multifocal lens - Google Patents

Abstract

A multifocal lens includes an optical center region. The optical center region includes a near vision region, a transition vision region, and a far vision region. An added power of the near vision region has a negative correlation with the radius of the near vision region. The transition vision region surrounds the near vision region. The reducing level of the power of the transition region is in a range of 0.1 D to 0.6D. The far vision region surrounds the near vision region and the transition region.

Description

Smart multifocal lens

The present disclosure relates to a multifocal lens, especially a multifocal lens with intelligent adjustment effect.

Most of the existing smart multifocal lenses need to be fitted by optometrists for a long time. In addition, due to the large difference in power between the near vision zone and the long-distance vision zone, it is easy for the wearer to have maladaptation and blurry vision in the middle-distance vision zone. In addition, the pupils of people tend to shrink with age, so a single near vision zone size design cannot meet the wearing comfort and vision correction needs of different age groups.

In view of this, how to provide a smart multifocal lens that can design the near vision zone according to the pupil size and intelligently adjust the power difference between the near vision zone and the far vision zone is still one of the goals that the industry urgently needs to study. .

An implementation aspect of the present disclosure is a smart multifocal lens.

In an embodiment of the present disclosure, the smart multifocal lens includes an optical core area. The optical center zone includes the near vision zone, the conversion vision zone, and the long-distance vision zone. The additional diopter of the near vision zone is negatively related to the radius of the near vision zone. The conversion vision zone surrounds the near vision zone, and the diopter drop of the conversion vision zone falls within the range of 0.1D to 0.6D. The distance vision zone surrounds the near vision zone and the conversion vision zone.

In an embodiment of the present disclosure, the radius of the optical core region falls in the range of about 4 microns to 4.5 microns.

In an embodiment of the present disclosure, the distance between the inner diameter and the outer diameter of the conversion zone falls in the range of about 0.2 micrometers to 0.7 micrometers.

In an embodiment of the present disclosure, a radius of the near-distance zone falls in the range of about 1.3 micrometers to 2.1 micrometers.

In an embodiment of the present disclosure, the additional diopter of the near vision zone falls within the range of about 0.25D to 3.50D.

In an embodiment of the present disclosure, the near vision zone includes a first area and a second area surrounding the first area.

In an embodiment of the present disclosure, the diopter of the second area decreases as the distance from the center of the smart multifocal lens increases.

In an embodiment of the present disclosure, the first area is substantially a flat light area, and the first area is connected to the second area.

In an embodiment of the present disclosure, the radius of the first region falls within a range of 0.00 micrometers to 1.00 micrometers.

In an embodiment of the present disclosure, the additional diopter of the long-distance zone falls within the range of about 0.5D to 1.50D.

In the above embodiment, the smart multifocal lens designs the additional refractive power of the near vision zone according to the pupil radius to meet the vision correction requirements of all age groups. With the smooth diopter reduction design of the converted visual area, intelligent adjustment can be achieved, the effect of reducing the maladaptive condition of vision conversion and the conversion time can be achieved. With the design of slow diopter drop in the long-distance vision zone, the effect of reducing spherical aberration can be achieved.

Hereinafter, multiple implementations of the present invention will be disclosed in schematic form. For the sake of clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the invention. That is to say, in some embodiments of the present invention, these practical details are unnecessary. In addition, in order to simplify the drawings, some conventionally used structures and elements are shown in the drawings in a simple and schematic manner. And for the sake of clarity, the thickness of layers and regions in the drawings may be exaggerated, and the same element symbols in the description of the drawings represent the same elements.

FIG. 1 is a top view of a smart multifocal lens 100 according to an embodiment of the present disclosure. The smart multifocal lens 100 includes an optical center zone OZ, and the optical center zone OZ includes a near vision zone 110, a conversion vision zone 120, and a long-distance vision zone 130. The optical center zone OZ has a radius R1, and the radius R1 falls in the range of about 4 microns to 4.5 microns. The near vision zone 110 has a radius R2, and the radius R2 falls in the range of about 1.3 microns to 2.1 microns. The switching vision zone 120 surrounds the near vision zone 110. The distance D between the inner diameter r1 and the outer diameter r2 of the conversion vision zone 120 falls in the range of about 0.2 micrometers to 0.7 micrometers. The distance vision zone 130 surrounds the conversion vision zone 120 and the near vision zone 110. Specifically, the diameter of the optical center zone OZ can cover the size of the wearer's pupil. In this embodiment, the diameter of the optical core zone OZ is about 8 to 9 microns, but the disclosure is not limited to this.

The near vision zone 110 includes a first area 112 and a second area 114 surrounding the first area 112. The first area 112 is substantially a flat area, that is, the diopter of the first area 112 is a constant value. The radius R3 of the first region 112 falls within the range of 0.00 μm to 1.00 μm, and the first region 112 connects the second region 114. The refractive power of the second region 114 decreases as the distance from a center C of the smart multifocal lens 100 increases. In other words, the degree of the second region 114 increases in the radial direction.

Figure 2 is a diagram showing the relationship between diopter and radius of the smart multifocal lens according to an embodiment of the present disclosure. Figure 2 exemplarily lists the diopter and radius relationship of four smart multifocal lenses. The additional diopter ADD of the second area 114 of the near vision zone 110 of the present disclosure falls within the range of about 0.25D to 3.50D. In other words, the degree difference between the second area 114 and the first area 112 falls within the range of 25 degrees to 300 degrees. It can be seen from the data in Figure 2 that, in this embodiment, the second region 114 in which the additional refractive power ADD falls within the range of about 0.75D to 2.25D is taken as an example. In this embodiment, the first region 112 with a radius of about 0.50 microns is taken as an example. The distribution and radius of the additional refractive power ADD of the second area 114 of the near vision zone 110 will be designed according to age, which will be described in detail later.

The diopter drop of the converted vision zone 120 falls within the range of 0.1D to 0.6D. In other words, the degree difference between the converted vision zone 120 and the near vision zone 110 falls within a range of approximately 10 degrees to 60 degrees. For example, in one embodiment, the distance D between the inner diameter r1 and the outer diameter r2 of the conversion vision zone 120 is about 0.5 micrometers. The diopter reduction of the converted vision zone 120 will be designed according to the additional diopter ADD of the second zone 114 of the near vision zone 110, so as to achieve the effect of intelligently adjusting the diopter difference between the short distance and the long distance, and avoid maladaptation or blurred vision. .

The additional diopter of the distance vision zone 130 falls in the range of about 0.5D to 1.50D. In other words, the difference in degrees between the distance vision zone 130 and the conversion vision zone 120 falls within a range of about 50 degrees to 150 degrees. By controlling the power difference of the distance vision zone 130 within this range, the occurrence of spherical aberration can be reduced.

Figure 3 shows the diopter range data of different age groups based on Figure 2. Refer to Figure 2 and Figure 3 at the same time. The refractive power and radius data corresponding to the curves S1, S2, S3, and S4 in the second figure correspond to the age and refractive power data of the ethnic groups 1, 2, 3, and 4 in the third figure, respectively. In this embodiment, the wearers are divided into four groups according to the age range of the wearers, each of which is 40-50 years old in ethnic group 1, 50-60 years old in ethnic group 2, 60-70 years old in ethnic group 3, and 70-80 years old in ethnic group 4. age. In other words, ethnic groups 1 to 4 correspond to the younger to older age range respectively. It should be understood that the above-mentioned age grouping is only an example, and those in the field can adjust the number of groups and the size of the age range according to development needs. For example, in other embodiments, 5 years old may be used as the age range and divided into eight age groups to define the diopter and radius of the near vision zone 110.

It can be seen from the figure that the near vision zone 110 of group 1 has a radius R21, and the radius R21 is 2.0 microns. In other embodiments, the radius R21 may fall in the range of about 1.9 microns to 2.1 microns. The additional diopter ADD range of the second area 114 of the near vision zone 110 of the group 2 falls in the range of about 0.50D to 1.00D, that is, the difference in power between the second area 114 of the group 2 and the first area 112 falls within the range of about 0.50D to 1.00D. In the range of about 100 degrees to 150 degrees. It can be seen from the curve S1 in Figure 3 that the diopter of the curve S1 is approximately reduced from -2.25D to -3.00D, that is, the difference in the power of the curve S1 is about 75 degrees.

The near vision zone 110 of group 2 has a radius R22, and the radius R22 is 1.8 micrometers. In other embodiments, the radius R22 may fall in the range of about 1.7 microns to 1.9 microns. The additional diopter ADD range of the second area 114 of the near vision zone 110 of the group 2 falls in the range of about 1.00D to 1.50D, that is, the difference in power between the second area 114 and the first area 112 of the group 2 lies in In the range of about 100 degrees to 150 degrees. It can be seen from the curve S2 in Figure 3 that the diopter of the curve S2 drops from -1.75D to -3.00D, that is, the difference in power of the curve S2 is about 125 degrees.

The near vision zone 110 of group 3 has a radius R23, and the radius R23 is 1.6 micrometers. In other embodiments, the radius R23 may fall in the range of about 1.5 microns to 1.7 microns. The additional diopter ADD range of the second area 114 of the near vision zone 110 of the group 3 falls in the range of about 1.50D to 2.00D, that is, the difference in power between the second area 114 and the first area 112 of the group 3 falls within about 1.50D to 2.00D. In the range of 150 degrees to 200 degrees. It can be seen from the curve S3 in Figure 2 that the diopter of the curve S3 decreases from -1.25D to -3.00D, that is, the difference in power of the curve S3 is about 175 degrees.

The radius R24 of the near vision zone 110 of the group 4 is 1.4 micrometers. In other embodiments, the radius R24 may fall in the range of about 1.3 microns to 1.5 microns. The additional diopter ADD range of the second area 114 of the near vision zone 110 of the group 4 falls in the range of about 2.00D to 2.50D, that is, the difference in power between the second area 114 and the first area 112 of the group 4 is about 2.00D to 2.50D. In the range of 200 degrees to 250 degrees. It can be seen from the curve S4 in Fig. 2 that the diopter of the curve S4 decreases from -0.75D to -3.00D, that is, the difference in power of the curve S4 is about 225 degrees.

It can be seen from the curve S1 to the curve S4 that the additional diopter ADD of the near vision zone 110 is negatively correlated with the radius R2. Generally speaking, pupil size tends to decrease with age. Therefore, by grouping the additional refractive power ADD of the near vision zone 110 into groups according to age, it can be closer to the needs of each age group to correct vision in the near vision zone 110. In addition, since the radius R2 of the near vision zone 110 is designed according to the size of the pupil, such a design can also reduce the discomfort of wearing. The above design can be applied to soft contact lenses, hard contact lenses, frame glasses, etc., and to correct presbyopia, astigmatism, etc. In other words, according to this design, the effect of correcting presbyopia of all age groups can also be met.

It can be seen from the curve S1 to the curve S4 that the diopter of the converted vision zone 120 will continue the additional diopter ADD of the near vision zone 110 and gradually decrease. By controlling the diopter drop of the converted vision zone 120 in the range of 0.1D to 0.6D, the visual acuity can be smoothed when the vision is converted between the near vision zone 110 and the long-distance vision zone 130, reducing the loss of vision conversion. Adaptation to poor conditions and conversion time. The radius of the second area 114 of the present disclosure will vary according to the design of different ethnic groups. In Figure 3, only the size of the second area 114 of the curve S1 and the conversion visual area 120 are marked.

It can be seen from the curve S1 to the curve S4 that the diopter drop amplitude of the distance vision zone 130 is controlled in the range of about 0.5D to 1.50D. Generally speaking, the radius of the distance vision zone 130 varies according to the size of the optical center zone OZ, the near vision zone 110 and the converted vision zone 120. For example, a smart multifocal lens with a radius R1 of 4 microns in the optical center zone OZ may have a near vision zone 110 with a radius R2 of 1.4 microns, a converted vision zone 120 with a distance D of 0.5 microns, and a distance vision of 2.1 microns.区130. Therefore, as long as the power difference in the distance vision zone 130 is controlled within the range of 50 degrees to 150 degrees, the occurrence of spherical aberration can be effectively reduced.

Based on the above, the smart multifocal lens of the present disclosure designs the additional refractive power of the near vision zone according to the pupil radius to meet the vision correction requirements of all age groups. With the smooth diopter reduction design of the converted visual area, intelligent adjustment can be achieved, the effect of reducing the maladaptive condition of vision conversion and the conversion time can be achieved. With the design of slow diopter drop in the long-distance vision zone, the effect of reducing spherical aberration can be achieved.

Although this disclosure has been disclosed in the above implementation manner, it is not intended to limit the disclosure. Anyone who is familiar with this technique can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, this disclosure is protected The scope shall be subject to the definition of the attached patent application scope.

100: Smart multifocal lens

OZ: Optical Heart Zone

110: Near vision zone

112: The first area

114: second area

120: Converting the visual area

130: Long-distance vision zone

R1, R2, R21, R22, R23, R24, R3: radius

r1: inner diameter

r2: outer diameter

C: Center

D: distance

S1, S2, S3, S4: curve

Figure 1 is a top view of a smart multifocal lens according to an embodiment of the disclosure. Figure 2 is a diagram showing the relationship between diopter and radius of the smart multifocal lens according to an embodiment of the present disclosure. Figure 3 shows the diopter range data of different age groups based on Figure 2.

100: Smart multifocal lens

110: Near vision zone

112: The first area

114: second area

120: Converting the visual area

130: Long-distance vision zone

R1, R2, R3: radius

r1: inner diameter

r2: outer diameter

C: Center

D: distance

OZ: Optical Heart Zone

Claims (10)

A smart multifocal lens, including: A light heart zone, including: A near vision zone, an additional diopter of the near vision zone is negatively related to the radius of the near vision zone; A conversion vision zone surrounding the near vision zone, wherein a diopter drop of the conversion vision zone falls within the range of 0.1D to 0.6D; and A long-distance vision zone surrounds the near-distance vision zone and the conversion vision zone. The smart multifocal lens according to claim 1, wherein a radius of the optical center area falls within a range of about 4 microns to 4.5 microns. The smart multifocal lens according to claim 1, wherein the distance between an inner diameter and an outer diameter of the conversion zone falls within a range of about 0.2 micrometers to 0.7 micrometers. The smart multifocal lens according to claim 1, wherein a radius of the near vision zone falls within a range of about 1.3 micrometers to 2.1 micrometers. The smart multifocal lens according to claim 1, wherein the additional refractive power of the near vision zone falls within a range of about 0.25D to 3.50D. The smart multifocal lens according to claim 1, wherein the near vision zone includes a first area and a second area surrounding the first area. The smart multifocal lens according to claim 6, wherein the refractive power of the second area decreases as the distance from a center of the multifocal lens increases. The smart multifocal lens according to claim 6, wherein the first area is substantially a flat light area, and the first area is connected to the second area. The smart multifocal lens according to claim 6, wherein a radius of the first area falls within a range of 0.00 micrometers to 1.00 micrometers. The smart multifocal lens according to claim 1, wherein an additional diopter of the distance vision zone falls in the range of about 0.5D to 1.50D.

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