CN110720074A - Beauty Contact Lenses - Google Patents

Abstract

The invention provides a novel cosmetic contact lens which can be adapted to the eyes of a wearer to inhibit the sense of incongruity in appearance and make the eye pupil appear larger. In a peripheral portion (16) located on the outer peripheral side of an optical portion (14), a plurality of conical spokes (28) composed of a tip-tapered colored portion having a width dimension that decreases from the outer peripheral side to the inner peripheral side of a cosmetic contact lens (10) are arranged in the lens circumferential direction, and an annular cosmetic pattern region (26) is provided as a whole, the cosmetic pattern region (26) being present over the inner peripheral side and the outer peripheral side of a corneal edge portion (24) to which an eye is worn, and the inner peripheral end of the cosmetic pattern region (26) being located on the cornea and the outer peripheral end being located on the sclera, while conical spokes (28, 28) adjacent in the lens circumferential direction are separated from each other and provided with a non-colored portion (32) extending over the entire length in the radial direction therebetween, and the width dimension of the non-colored portion (32) increases from the outer peripheral side to the inner peripheral side of the.

Description

Beauty Contact Lenses

technical field

The present invention relates to cosmetic contact lenses, in particular, by providing a pattern area composed of a colored portion of a novel style, which can be adapted to the wearer's eyes, suppresses a sense of incongruity in appearance, and makes pupils appear larger, and provides Contact lenses for beauty with natural make-up (beauty) effects that have never been seen before.

Background technique

Conventionally, as one type of contact lenses to be worn on the surface of the eyes, there have been proposed several types of cosmetic contact lenses that provide cosmetic effects by colored portions. Among conventional cosmetic contact lenses, there are contact lenses that change the color of eye pupils, and contact lenses that make eye pupils appear larger.

In the former, the black part of the eye (around the pupil) where the color of the iris can be seen through the cornea is covered with a coloring part to make the part of the eye black. It appears to be a different color from the original color. On the other hand, as shown in JP 2008-511025 A (Patent Document 1), the latter has an annular colored region that covers the portion of the white of the eye at the outer periphery of the pupil with an outer diameter larger than the outer diameter of the heterochromatic edge. Makes dark eyes appear larger.

However, in the latter cosmetic contact lens for making dark eyes appear larger, not only the outer diameter of the dark eye is enlarged, but also the outer edge of the dark eye can be clearly emphasized and defined, so that the expression of the eyes and the whole face can be made cute, clear. Therefore, the outer edge of the colored area is formed with a clearly visible circular line.

However, the inventors of the present invention have found through repeated studies that if the outer edge of the colored region is formed to have a clear circular line so that the boundary between the black eye and the white of the eye is a clear line to be conspicuous, an excessively artificial image will be left to others. Impressive and easy to see like the eyes of a robot (fake eyes), especially for ordinary people who are not models, it is difficult to say that the purpose of "making the whole eye look beautiful" can be achieved.

In addition, based on the above knowledge, the present applicant disclosed in Japanese Patent Laid-Open No. 2013-65059 (Patent Document 2) and Japanese Patent Laid-Open No. 2013-130658 (Patent Document 3) by adjusting the coloring of the outer edge covering the dark eye area The density or light transmittance of the outer peripheral side of the area is a novel colored contact lens that can alleviate an artificial impression by avoiding an unnatural appearance.

Patent Document 1: Japanese Patent Publication No. 2008-511025

Patent Document 2: Japanese Patent Laid-Open No. 2013-65059

Patent Document 3: Japanese Patent Laid-Open No. 2013-130658.

SUMMARY OF THE INVENTION

The present invention has been made on the background of the above-mentioned circumstances, and has a configuration different from that of Patent Document 2 and Patent Document 3 to provide a colored contact lens that can avoid the unnatural appearance of the colored contact lens described in Patent Document 1, adapt to A new type of cosmetic contact lens that suppresses a sense of incongruity in the appearance of the wearer's eyes and makes the pupils appear larger.

The present invention is characterized by a cosmetic contact lens in which a plurality of front ends that decrease in width from the outer peripheral side toward the inner peripheral side of the lens are arranged in the peripheral portion on the outer peripheral side of the optical portion by arranging in the circumferential direction of the lens. The tapered spokes formed by the tapered colored parts are provided with an overall annular cosmetic pattern area, the outer diameter of the cosmetic pattern area is 11.0 to 14.0 mm, and the cosmetic pattern area covers the cornea that wears the eyes The inner peripheral side and the outer peripheral side of the edge portion exist and the inner peripheral end of the cosmetic pattern region is located on the cornea and the outer peripheral end is located on the sclera, and on the other hand, the adjacent tapered spokes in the circumferential direction of the lens are separated from each other and are located in each other. A non-pigmented portion extending over the entire length of the radial direction is provided between them, the minimum separation distance between the outer peripheral ends of the adjacent tapered spokes in the circumferential direction of the lens is 0.01-0.20 mm, and the width of the non-pigmented portion is from the lens. The outer peripheral side becomes larger toward the inner peripheral side.

The present invention utilizes the phenomenon of color assimilation, which is a kind of ocular illusion, in the cosmetic pattern region existing over the inner and outer peripheral sides of the corneal limbus, and has the following as its basic technical idea. The above-mentioned assimilation phenomenon is gradually changed in the radial direction, and the above-mentioned cosmetic pattern area is adapted to both the black eye of the cornea and the white of the eye of the sclera, thereby suppressing the appearance of incongruity and making the pupil appear larger.

That is, in the cosmetic contact lens following the structure of the present invention, a gap-shaped non-colored portion that is continuous over the entire radial length is provided between the tapered spokes constituting the cosmetic pattern region. Through this gap, an assimilation phenomenon of colors approaching each other occurs between the tapered spoke and the eye visually recognized by the non-colored portion. As a result, in the cosmetic pattern area, an appearance suitable for the wearer's eyes is presented.

Furthermore, in the inner peripheral portion of the cosmetic pattern region located in the dark portion of the cornea, the portion of the wearer's dark eye is adapted to exhibit a natural appearance, and in the outer peripheral portion of the cosmetic pattern region located in the white portion of the sclera The outer edge of the cornea can be enlarged with a natural look and feel by adapting to the white part of the wearer's eye.

Furthermore, as the width dimension of the non-colored portion of the cosmetic pattern region increases from the outer periphery toward the inner periphery, the assimilation phenomenon gradually changes in the radial direction, and the form of the assimilation phenomenon gradually changes between the inner and outer peripheral portions. That is, in the inner peripheral portion of the cosmetic pattern area, the assimilation effect that the color of the tapered spokes is close to the color of the wearer's cornea is advantageously exerted, and on the other hand, as it progresses toward the outer peripheral side of the cosmetic pattern area, an assimilation effect is exerted. The assimilation of the color of the wearer's cornea gradually approaching that of the conical spokes. In this way, the assimilation phenomenon is transformed in the radial direction. For example, even if the color of the cone-shaped spokes is different from the color of the wearer's cornea, the overall appearance is integrated with the natural corneal color to give a less incongruent appearance. Thereby, for example, it is possible to give a color clearer than the color of the wearer's cornea, to make the outer edge of the cornea appear larger, and to suppress the feeling of incongruity caused by the difference from the wearer's original corneal color, and to give a better overall appearance. Natural look.

In addition, in the present invention, one or more of the following aspects can be appropriately combined and applied.

In the cosmetic contact lens to which one embodiment of the present invention can be applied, the spoke width dimension which is the outer peripheral end having the largest width among the tapered spokes is 0.1 to 1.0 mm.

According to this aspect, the assimilation phenomenon of the outer peripheral portion of the cosmetic pattern region can be improved, and a more natural appearance can be expressed. When the spoke width dimension at the outer peripheral end is less than 0.1 mm, the clarity of the appearance is reduced, and it is difficult to obtain the cosmetic effect of making the outer edge of the wearer's cornea appear clear and large due to the cosmetic pattern. On the other hand, when the spoke width at the outer peripheral end exceeds 1.0 mm, the sharpness is easily conspicuous in appearance, and the appearance may be uncomfortable due to the cosmetic pattern used for the outer edge of the cornea of the wearer.

In the cosmetic contact lens to which one embodiment of the present invention can be applied, in the above-mentioned tapered spokes adjacent in the lens circumferential direction, the separation distance Da of the inner peripheral end, the separation distance Db of the outer peripheral end, and the separation distance Dc of the intermediate portion have 0< The relationship of Db<Dc<Da.

According to this aspect, as illustrated in FIGS. 7 and 11 , the width dimension of the non-colored portion provided between the adjacent tapered spokes is at any position in the middle portion between the inner peripheral end and the outer peripheral end, Greater than the dimension at the outer peripheral end and smaller than the dimension at the inner peripheral end. As a result, the gradation of the assimilation phenomenon can be improved in the inner peripheral portion and the outer peripheral portion in particular, and the assimilation of the inner peripheral portion to the cornea and the assimilation of the outer peripheral portion from the cornea to the sclera can be promoted.

A cosmetic contact lens to which one embodiment of the present invention can be applied, wherein, with respect to the separation distance Da between the inner peripheral ends of the tapered spokes and the separation distance Db between the outer peripheral ends of the tapered spokes adjacent in the lens circumferential direction, the inner circumference of the tapered spokes The width dimension of the end is smaller than the value of Da and the width dimension of the peripheral end is larger than the value of Db.

According to this aspect, in the cosmetic pattern region, the assimilation phenomenon to the cornea in the inner peripheral portion and the assimilation phenomenon to the sclera in the outer peripheral portion are respectively improved, and the appearance of discomfort can be further reduced.

A cosmetic contact lens to which one aspect of the present invention can be applied, wherein the tapered spokes are composed of a base at the outer peripheral end and two oblique sides extending from both ends of the base toward the inner peripheral side, respectively, and are the A triangular shape in which each hypotenuse is longer than the base.

According to this aspect, the assimilation phenomenon and its gradual change in the radial direction can be expressed by the relatively simple shape of the tapered spoke.

In the cosmetic contact lens to which one embodiment of the present invention can be applied, the tapered spoke is a colored portion having substantially constant brightness, hue, chromaticity, and density over the entirety.

According to this aspect, the entire cone-shaped spoke is formed in a substantially constant color, and by the assimilation phenomenon and the gradation effect in the radial direction as described above, the inner peripheral side can be adapted to the cornea and the cornea can be adjusted toward the outer peripheral side with a natural appearance. The outer edge appears larger for a cosmetic effect.

In the cosmetic contact lens to which one aspect of the present invention can be applied, the tapered spokes are solid colored portions that are substantially uniform throughout.

According to this aspect, the tapered spokes are formed to be solid colored, and a natural appearance can be expressed by an assimilation phenomenon with the color of the wearer's cornea seen by a third person through the non-colored area in the wearing state.

In the cosmetic contact lens to which one aspect of the present invention can be applied, the plurality of tapered spokes are arranged concentrically with respect to the geometric center of the optical portion or the lens.

According to this aspect, for example, in a general contact lens for correction of myopia, hyperopia, and presbyopia, the pattern area for beauty can be arranged so as to overlap with the outer peripheral portion of the cornea of the wearer.

In the cosmetic contact lens to which one aspect of the present invention can be applied, the tapered spokes having the same shape and size are arranged at equal intervals in the circumferential direction.

In this aspect, the appearance pattern of the cosmetic pattern region can easily avoid the appearance of the appearance that is shifted to a specific part in the circumferential direction, and can have a substantially balanced appearance in the circumferential direction. In addition, in the present embodiment, all the tapered spokes constituting the cosmetic pattern region can be tapered spokes having the same shape and size, and in this case, adjacent tapered spokes can have a constant shape and size sandwiched therebetween. The above-mentioned non-colored parts are arranged in the circumferential direction. However, in the present embodiment, tapered spokes having different shapes and sizes may be arranged between the circumferential directions of a plurality of tapered spokes having the same shape and size arranged at equal intervals in the circumferential direction.

A cosmetic contact lens to which one embodiment of the present invention can be applied, wherein the width dimension of the non-colored portion in the circumferential direction of the lens is continuous from the outer peripheral side of the lens toward the inner peripheral side of the lens over the entire length of the non-colored portion in the radial direction. Gradually larger way changes.

According to this aspect, the gradation effect of the assimilation phenomenon in the radial direction is exerted over the entire length of the non-colored portion in a smoother transformation form, and a more natural look and feel can be provided.

A cosmetic contact lens to which one embodiment of the present invention can be applied, wherein the non-colored portion has a value of a length dimension in the radial direction of the lens of 0.5 to 4.5 mm, and a difference between the width dimension Da of the largest inner peripheral end and the smallest outer peripheral end. The value of the difference Da-Db of the width dimension Db is 0.02 to 3.0 mm.

According to this aspect, the radial length of the assimilation phenomenon can be ensured so that the gradation effect of the assimilation phenomenon can be more effectively exhibited in the cosmetic pattern region.

According to the present invention, it is possible to provide a novel cosmetic contact lens which utilizes the assimilation phenomenon to the color of the wearer's eyes in the cosmetic pattern region composed of a specific colored portion and a non-colored portion, and further reduces the assimilation phenomenon. Gradient in the radial direction.

Description of drawings

FIG. 1 is a reference diagram for explaining the phenomenon of color assimilation.

FIG. 2 shows a front view of the cosmetic contact lens as the first embodiment of the present invention.

FIG. 3 is an explanatory diagram for explaining the assimilation phenomenon and the gradation action in the radial direction of the cosmetic contact lens shown in FIG. 2 .

FIG. 4 is a first reference example for explaining the assimilation effect of the cosmetic pattern region.

FIG. 5 is a second reference example for explaining the assimilation effect of the cosmetic pattern region.

FIG. 6 is an explanatory diagram for explaining the assimilation action of the cosmetic pattern area used.

7 is a front view showing a cosmetic contact lens as a second embodiment of the present invention.

8 is a front view showing a cosmetic contact lens as a third embodiment of the present invention.

9 is a front view showing a cosmetic contact lens as a fourth embodiment of the present invention.

10 is a front view showing a cosmetic contact lens as a fifth embodiment of the present invention.

It is explanatory drawing for demonstrating the shape of the tapered spoke which comprises the pattern area for cosmetics in this invention.

FIG. 12 is an explanatory view showing another shape of the outer peripheral end of the tapered spoke shown in FIG. 11 .

FIG. 13 is a front view illustrating a manner in which the width dimension of the non-colored portion of the cosmetic pattern region is reduced in the middle portion in the radial direction of the lens as a comparative example of the present invention.

FIG. 14 is an illustration of a mode in which the width dimension of the non-colored portion of the cosmetic pattern region is made larger in the middle portion in the lens radial direction than either of the inner peripheral end and the outer peripheral end in the lens radial direction as a comparative example of the present invention main view.

FIG. 15 is a comparison example of the present invention that makes the width dimension of the non-colored portion of the cosmetic pattern area 0 at the outer peripheral end in the lens radial direction so that the outer peripheral ends of the adjacent tapered spokes are continuously colored in the circumferential direction. Partial way to instantiate the main view.

16 is a front view showing an example of the cosmetic contact lens according to the present invention used in the experiment.

17 is a front view showing a cosmetic contact lens as a comparative example used in an experiment.

18 is a front view showing a cosmetic contact lens as another comparative example used in the experiment.

19 is a front view showing a cosmetic contact lens provided with a guide mark as an example of an expanded form of the present invention.

Detailed ways

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

First, the "color assimilation phenomenon" used in the present invention will be described. The well-known "color assimilation phenomenon" is a phenomenon in which a certain color looks similar to other colors when it is surrounded or sandwiched by other colors, which is a kind of visual error. Specifically, the color assimilation phenomenon will be described with reference to the reference diagram shown in FIG. 1 .

That is, in FIG. 1(a), a plurality of parallel gray lines arranged at constant intervals as a certain color are shown, and in (a1), the gaps between adjacent gray lines are white lines of other colors. , on the other hand, in (a2), the gaps between adjacent gray lines are black lines of other colors. When (a1) and (a2) are compared and observed, the assimilation phenomenon that (a2) appears to be darker gray than (a1) for gray lines of the same color can be felt.

1(b) shows a plurality of parallel black lines arranged at constant intervals as a certain color, and in (b1), the gaps between the adjacent black lines are white lines as other colors , on the other hand, in (b2), the gaps between the adjacent black lines are gray lines as other colors. When (b1) and (b2) are compared and observed, the assimilation phenomenon that (b2) appears to be black, which is similar to gray, is felt for black lines of the same color as compared to (b1).

In addition, in FIG. 1( c ), as in ( a ), a plurality of parallel black lines are arranged in parallel adjacent to each other with the gray lines sandwiched therebetween, but the mutual interval is larger than that in ( a ). Comparing (a) and (c), it can be seen that when the line spacing is too large, color assimilation is difficult to occur, and on the contrary, a contrast phenomenon with a clear boundary with surrounding colors occurs.

The cosmetic contact lens of the present invention utilizes such a color assimilation phenomenon, but is not limited to this. In the present invention, in addition to the color assimilation phenomenon, the assimilation phenomenon is gradually changed in the radial direction of the pupil. That is, the degree of assimilation of the color assimilation phenomenon varies depending on the size of the adjacent gap of a certain color, as can be seen from (a), (b), and (c) of FIG. 1 . By focusing on this phenomenon, the present inventors discovered that the direction and degree of color assimilation can be controlled to gradually change in the radial direction of the pupil. In addition, the colored portion of a specific shape is provided on the contact lens in a specific arrangement, and a cosmetic pattern area composed of a colored portion and a non-colored portion is formed, whereby the outer peripheral portion is adapted to the appearance of the sclera and to a certain extent It is clear that the pupil (the dark part of the eye) appears larger in appearance, and the color of the natural pupil of the human eye is made to match, so that a new type of cosmetic that can reduce appearance incongruity can be realized. Use contact lenses.

A front view of the cosmetic contact lens 10 as the first embodiment of the present invention is shown in FIG. 2 . The cosmetic contact lens 10 has a shape following a conventionally known general contact lens, and is formed to have a partial spherical shell shape having a spherical cap-shaped convex front surface and a spherical shape. The posterior surface of the crown is concavely shaped so as to fit snugly on the surface of the cornea of the eye.

In addition, the material of the cosmetic contact lens 10 is not limited. For example, in addition to hard lenses such as RGP lenses (oxygen permeable lenses) and PMMA (polymethyl methacrylate), PHEMA (polymethyl methacrylate) lenses can also be used. Any of soft contact lenses such as water-containing properties such as hydroxyethyl methacrylate), non-water-containing properties such as acrylic elastomers, or high oxygen permeability such as silicone hydrogels. In particular, compared with hard contact lenses, soft contact lenses generally have a large diameter to sufficiently cover the white part of the eye, and the amount of movement on the cornea when worn can be small, so they can be preferably used in the present invention. .

In addition, the cosmetic contact lens 10 includes an optical portion 14 that transmits light incident on the ocular optical system in a substantially circular central region around a center point that is substantially the same as or slightly deviated from the geometric center 12 of the lens. The optical portion 14 has an outer diameter dimension φA larger than the pupil of the human eye, and is positioned on the pupil so as to coincide with the cornea when worn.

Further, a peripheral portion 16 is provided on the outer periphery of the optical portion 14 , and the peripheral portion 16 surrounds the optical portion 14 in a ring shape with a predetermined width. The peripheral portion 16 is not on the projected light path to the ocular optical system in the wearing state, and is provided in consideration of positional stability on the eyeball, improvement of wearing feeling, and the like. In addition, the outer peripheral end of the peripheral portion 16 is an edge portion 18 connecting the front surface of the lens and the rear surface of the lens.

In addition, the optical portion 14 can be provided with a correcting function for vision abnormalities such as myopia, hyperopia, and presbyopia by having specific optical properties, so that the cosmetic contact lens (lens) 10 can also serve as a vision correction contact lens. However, the cosmetic contact lens 10 of the present embodiment may be a non-vision correction contact lens that does not have optical properties for vision correction. When it is provided as a contact lens for non-vision correction, for example, it can be used as a cosmetic lens (contact lens for beauty or fashion).

Furthermore, the cosmetic contact lens 10 of the present embodiment is set so that the outer diameter dimension (DIA) can completely cover the portion (cornea) of the black eye 20 of the eye and cover the portion (sclera) of the white 22 with a predetermined width. That is, the DIA of the cosmetic contact lens 10 is larger than the outer diameter dimension φB of the boundary line (heterochromatic edge) 24 between the black eye 20 and the white 22 of the eye, and the heterochromatic edge 24 is located at a position higher than that of the cosmetic contact lens 10 in the wearing state. The edge portion 18 of the outer periphery is located on the inner periphery side. In addition, the black eye 20 is an area in which the color of the iris of the eye can be visually recognized from the outside, and is an area in which the iris can be seen through the transparent cornea. Therefore, the boundary line 24 can be understood as the separation between the cornea and the white sclera located on the outer peripheral side. boundaries.

In addition, the above-mentioned cosmetic contact lens 10 is provided with a cosmetic pattern region 26 formed of a colored band portion that expands into a substantially annular shape as a whole.

Particularly in the present embodiment, the cosmetic pattern area 26 is disposed in the peripheral portion 16 concentrically around the lens geometric center axis (eg, the lens optical axis) passing through the geometric center 12 . Furthermore, when the cosmetic contact lens 10 is worn on the eye, the cosmetic pattern region 26 has a radial direction that extends only in the radial direction across both the inner peripheral side and the outer peripheral side of the heterochromatic edge (corneal limbus) 24 of the eye. The width of the cosmetic pattern area 26 is attached to the eye black 20 in the inner peripheral side of the different-color edge 24 , and the cosmetic pattern area 26 is attached to the eye white 22 at the outer peripheral side of the different-color edge 24 .

In addition, it is preferable that the inner diameter dimension φC (refer to FIG. 2 ) of the cosmetic pattern region 26 is set to such an extent that it does not substantially overlap with the pupil in many situations in the daily life of the wearer. Thereby, the influence of the pattern area 26 for cosmetics on vision is suppressed. On the other hand, the outer diameter dimension of the cosmetic pattern region 26 is such that the white of the eye 22 can be covered with a predetermined width. Thereby, the cosmetic effect of making the different-color edge 24 appear larger in appearance is exhibited.

In addition, the cosmetic pattern region 26 may be provided to reach the edge portion 18 of the outermost periphery of the cosmetic contact lens 10, but in the present embodiment, the outer diameter dimension φD (see FIG. 2 ) of the cosmetic pattern region 26 is smaller than that of the cosmetic According to the outer diameter dimension (DIA) of the contact lens 10 , a non-colored outer peripheral transparent region 30 in the shape of an annular ring extending in the circumferential direction with a predetermined width in the radial direction is provided between the cosmetic pattern region 26 and the edge portion 18 . The existence of the outer peripheral transparent region 30 can ensure the radial dimension of the peripheral portion 16 which contributes to the lens position stability during wearing, etc., and can adjust and set the outer diameter dimension of the cosmetic pattern region 26 with a large degree of freedom.

In the cosmetic pattern region 26 of the present embodiment, the tapered spokes 28 formed of colored portions with a tapered tip shape whose width in the circumferential direction decreases from the outer peripheral side toward the inner peripheral side of the lens extends along the periphery of the lens. By arranging a plurality of the tapered spokes 28 in the radial direction, the inner and outer middle portions of the tapered spokes 28 are formed to expand with a substantially constant width in the circumferential direction. That is, the cosmetic pattern region 26 has a colored portion of the tapered spokes 28 that is visually recognized as dark in appearance, and is located between the adjacent tapered spokes 28 and 28 and is visually recognized as transparent (including colorless, transparent and Colored and transparent) non-colored portion 32. Thereby, a plurality of tapered spokes 28 are arranged concentrically with respect to the optic 14 or the geometric center 12 of the lens.

In addition, the inner diameter dimension of the above-mentioned cosmetic pattern area 26 is the diameter dimension of the circle connecting the innermost points of the plurality of tapered spokes 28, and the outer diameter dimension of the cosmetic pattern area 26 is the outermost dimension of the plurality of tapered spokes 28. The diameter dimension of the circles connected by the points. In addition, when the cosmetic pattern region 26 is configured by a plurality of types of tapered spokes 28 having different radial lengths, the smallest inscribed circle and the largest one of several tapered spokes 28 are used. The inner diameter φC and the outer diameter φD of the cosmetic pattern region 26 are understood as circumscribed circles (see FIG. 7 for φC). However, the inscribed circle and the circumscribed circle of the cosmetic pattern region 26 do not need to be a perfect circle, and may be, for example, an ellipse shape having a long vertical length or a long horizontal length.

Such cosmetic pattern regions 26 are generally preferably formed with a radial width of 0.5 to 4.5 mm, and more preferably formed with a radial width of 1.0 to 3.5 mm, in order to obtain sufficient cosmetic effects and the like. . Moreover, it is preferable that the radial direction width dimension of the pattern area 26 for cosmetics is constant over the entire length of the circumferential direction. That is, the inner and outer peripheries of the cosmetic pattern region 26 can be, for example, the smallest inscribed circle (not limited to a perfect circle) and the largest circumscribed circle (not limited to a perfect circle) as described above, for example, in the case of being constituted by the tapered spokes 28 . The radial width dimension of the cosmetic pattern region 26 can be made constant over the entire circumference by defining the inscribed circle and the circumscribed circle concentrically and having a similar shape. On the other hand, for example, the center of the inscribed circle and the circumscribed circle formed by the plurality of tapered spokes 28 are deviated from each other, or the inscribed circle and the circumscribed circle have non-similar shapes, etc., whereby the cosmetic pattern region 26 can be formed. The radial width dimension varies in the circumferential direction.

In addition, the inner diameter dimension φC of the cosmetic pattern region 26 is preferably φ6 mm or more, and more preferably φ7 mm or more. In addition, considering the size of the cornea of an ordinary person, the inner diameter dimension φC of the cosmetic pattern region 26 is preferably φ13 mm or less so that the inner peripheral portion of the cosmetic pattern region 26 covers the dark eye 20 .

On the other hand, the cosmetic pattern area is preferably a cosmetic pattern area from the viewpoint that it is natural to leave the area of the eye white 22 on the outer periphery of the cosmetic pattern area 26 sufficiently when worn, and it is effective for the cosmetic effect to show the beauty of the eye white 22. The outer diameter dimension φD of 26 is φ14mm or less. Furthermore, the outer diameter dimension φD of the cosmetic pattern region 26 is preferably φ11 mm or more, more preferably φ12 mm or more, so that the whites of the eyes 22 can be covered with a predetermined width.

Here, the cosmetic pattern region 26 is composed of a plurality of tapered spokes 28 arranged at predetermined intervals in the circumferential direction, thereby not only having the cosmetic effect of making the different-colored edges 24 appear larger in appearance as described above, but also To a third party who sees the wearer, an appearance that suppresses unnaturalness and naturally fits with the wearer's eyes is given.

3(b) shows that the cosmetic contact lens 10 shown in FIG. 2 is superimposed on the gray ground color corresponding to the cornea shown in FIG. A plurality of black tapered spokes 28 constitute the cosmetic pattern region 26 in the middle. In addition, in the following drawings which demonstrate the pattern area 26 for cosmetics, illustration of the outer shape of a lens is abbreviate|omitted. In addition, in order to facilitate description and understanding of the invention, it is shown in an enlarged view.

As can be seen from FIG. 3( b ), an assimilation phenomenon that appears to be close to the gray color of the base color occurs in the black tapered spokes 28 . In addition, it can be seen that the degree to which the black tapered spokes 28 appear to be close to the gray of the ground color is different between the inner peripheral side and the outer peripheral side of the cosmetic pattern region 26 . The black tapered spokes 28 on the inner peripheral side appear closer to the gray background color than the outer peripheral side.

This means that not only the color assimilation phenomenon occurs, but also the degree of color assimilation changes along the radial direction of the cosmetic pattern region 26 . Furthermore, in the wearing state, in the inner peripheral portion of the cosmetic pattern region 26, an assimilation phenomenon in which the colored portion of the tapered spokes 28 is close to the color of the eye seen through the non-colored portion 32 is exhibited. The outer peripheral portion of the pattern region 26 exhibits an assimilation phenomenon that the color of the eye is close to the color of the tapered spokes 28 more strongly than the inner peripheral portion. As a result, from the inner peripheral side of the cosmetic pattern region 26 toward the outer peripheral side, an assimilation phenomenon in which the color of the eyes naturally transitions in appearance to the color of the colored portion is exhibited.

In addition, in the outermost peripheral portion of the cosmetic pattern region 26, each tapered spoke 28 is positioned so as to protrude from the region of the black to the white of the eye. Since the non-colored portion 32 is also provided between the adjacent tapered spokes 28 and 28 in the outermost peripheral portion of the cosmetic pattern region 26, the tapered spoke 28 with the white of the eye, which is visually seen through the non-colored portion, is provided. The assimilation phenomenon of the color closeness of the coloring part. As a result, in the outer peripheral portion of the cosmetic pattern region 26, the boundary line between the colored portion and the white of the eye is not clear in appearance.

In this way, the cosmetic pattern area 26 adapts to the color of the wearer's dark eyes in the inner peripheral portion, and transitions harmoniously to the color of the tapered spokes 28 as it goes toward the outer peripheral portion, and further, in the outermost peripheral portion of the cosmetic pattern area 26 By extending to a position closer to the outer periphery than the dark eye, a makeup effect that makes the dark eye of the wearer appear larger in appearance can be exhibited, and the boundary line with the white of the eye can be restrained from being conspicuous to present a natural appearance.

That is, in the wearing state of the cosmetic contact lens 10 of the present embodiment, the color of the iris in the inner peripheral portion is tapered from the color of the iris to the outer peripheral portion by the assimilation phenomenon of the color gradually changing in the radial direction by the cosmetic pattern region 26 . The color of the spokes 28 is smoothly transitioned, and thereafter, the color of the tapered spokes 28 is assimilated with the color of the sclera (white of the eye) at the outermost peripheral portion so that the appearance of incongruity can be reduced. The adaptation of such a color, for example, is similar to the case where the boundary (corneal limbus or heterochromatic limbus) between the cornea (black eye) and the sclera (white of the eye) cannot be clearly demarcated from an anatomical point of view, and the following forms are exhibited: That is, the boundary when the color of the iris transitions from the color of the iris to the color of the tapered spokes 28 and the color of the sclera is not clearly identified due to the assimilation of the color. Furthermore, since the boundary between the color of the eye and the color of the tapered spokes 28 is blurred and gradually transitioned, the tapered spokes 28 that are artificially colored to make the dark eyes appear larger can be made close to the natural color of the wearer's eyes appearance appears.

However, in order to obtain such an effect, the colored portion that constitutes the cosmetic pattern region 26 is tapered at the tip as illustrated, and a tapered spoke 28 is provided between the adjacent tapered spokes 28 and 28 with a radially extending diameter. The non-colored portion 32 extending continuously in the radial direction along the entire length thereof.

Unlike the configuration of the present invention, for example, instead of the tapered spokes 28, rod-shaped (rectangular) spokes extending in the radial direction with a constant width dimension are used, and the non-colored regions between the adjacent spokes in the circumferential direction are used. The width dimension will be smaller on the inner peripheral side and larger on the outer peripheral side, contrary to the present invention. As a result, it is difficult to exert the assimilation effect of the outermost peripheral portion extending to the outer periphery of the dark eye, the outermost peripheral portion becomes irregular in appearance and tends to be conspicuous, and it is easy to leave an unnatural and incongruity in appearance to a third party. impression.

In addition, as shown in FIG. 4 as Reference Example 1, even when the tapered spokes 28 having a tapered tip shape as exemplified are employed, the adjacent tapered spokes 28 are employed unless the configuration of the present invention described above is different. , 28 are continuous so as to overlap at the outermost peripheral portion, and the non-colored portion 32 does not reach the outer peripheral end of the cosmetic area 26, the assimilation of the color in the outer peripheral portion of the cosmetic pattern area 26 is also not exerted. Therefore, the outer peripheral end of the colored portion that is continuous over the entire circumference is conspicuous in appearance, and a third person is given an impression of unnaturalness and incongruity like a robot due to manual work.

In addition, in the present embodiment, the non-colored portion 32 provided between the tapered spokes 28 and 28 adjacent in the circumferential direction of the lens is provided to have a width that increases from the outer circumferential side of the lens toward the inner circumferential side. On the other hand, as shown in FIG. 5 as reference example 2, for example, if the non-colored portion provided between the tapered spokes 28 and 28 adjacent in the circumferential direction is used to extend over the entire length in the radial direction with a substantially constant width dimension. shape, it is difficult to see the assimilation of colors in the radial transition. Therefore, it is difficult to sufficiently express the appearance in which the color of the tapered spokes 28 is naturally assimilated with the color of the eyes, and it is difficult to simultaneously fully realize the cosmetic effect due to the appearance of dark eyes enlarged in the outermost peripheral portion of the cosmetic pattern region 26, and The inner peripheral portion of the cosmetic pattern region 26 exhibits a natural appearance effect due to the adaptation to the wearer's eyes.

In addition, in order to exhibit an effective assimilation phenomenon, it is necessary to appropriately set the separation distance between the adjacent tapered spokes 28 and 28 . In particular, if the separation distance is too large, as shown in FIGS. 1( c ) and 5 , the contrast phenomenon is preferentially manifested over the assimilation phenomenon, and the color of the tapered spokes 28 is conspicuous and unnatural, and the tapered spokes also appear. A case where the color of 28 and the color of the sclera (white of the eye) appear alternately concave and convex to give an impression of incongruity or disgust to a third party.

Therefore, the separation distance of the tapered spokes 28 and 28 adjacent in the circumferential direction is set in the range of 0.01 to 0.20 mm at the outer peripheral end where the separation distance is the smallest. It also depends on the environmental conditions such as lighting and distance to people that are mainly considered. However, for example, in a high-intensity general lighting environment such as non-photography, and the normal distance to people (15 ~ 45cm is closely related) distance, a personal distance of 45 to 120 cm, a social distance of 120 to 360 cm, etc.), the separation distance between the outer peripheral ends of the tapered spokes 28 and 28 is preferably set within a range of 0.01 to 0.15 mm. In the case where the close distance or personal distance is more important, it is preferable to set the separation distance between the outer peripheral ends of the tapered spokes 28 and 28 within a range of 0.01 to 0.10 mm. In addition, when it is difficult to directly measure the value of the separation distance between the tapered spokes 28 and 28 adjacent in the circumferential direction by direct visual observation, for example, a universal projector V-12B manufactured by Nikon Co., Ltd. It is calculated by measuring the image obtained by enlarging and projecting the contact lens by 20 times with transmitted light in a state where the rear surface side of the contact lens is left standing, and converting it to the actual size.

In addition, in the cosmetic pattern region 26 formed by arranging a plurality of tapered spokes 28 in the circumferential direction, the increase or decrease of the spoke width of the tapered spokes 28 and the non-coloring provided between the adjacent tapered spokes 28 and 28 The increase or decrease in the width of the portion 32 is complementary. Therefore, although the spoke width of the tapered spokes 28 has some influence on the perception, the degree of assimilation occurs in the case where the color of the tapered spokes 28 is assimilated by the color of the eye seen through the non-pigmented portion 32, and through the non-pigmented portion In any of the cases where the color of the eyes seen by 32 is assimilated by the color of the tapered spokes 28, the width dimension of the non-colored portion 32 between the adjacent tapered spokes 28 and 28 is the most important factor. This can be understood from the fact that, in the specific example of the cosmetic pattern area illustrated in FIG. 6( a ) and ( b ), although the tapered spokes 28 of the same spoke width are used for both, the narrowing is not necessary. When (a) in which the width dimension of the non-colored part is enlarged is compared with (b) in which the non-colored part is enlarged, it can be seen that the degree of assimilation is very different.

However, there is a preferable range for the spoke width of the tapered spokes 28 from the viewpoint of the balance between the performance of the assimilation phenomenon and the aesthetic appearance. More preferably, it is set in the range of 0.2-0.6 mm. In addition, the length dimension of the tapered spokes 28 in the radial direction of the lens is not particularly limited, but is located on the cornea 20 on the inner peripheral side so as not to cover the pupil of the wearer's eye, and extends from the wearer's cornea 20 The length to the sclera 22 is arbitrarily set on the outer peripheral side. Within the above range, generally, the length of the tapered spokes 28 is set within a range of 0.5 to 4.5 mm, and more preferably within a range of 1.0 to 3.5 mm. Accordingly, the inner peripheral end of the cosmetic pattern region 26 is positioned on the cornea 20 and the outer peripheral end is positioned on the sclera 22 . In addition, the tapered spokes 28 may be formed by a base (W) located at the outer peripheral end, and two oblique sides extending from both ends of the base toward the inner peripheral side, and each oblique side may be longer than the base. shape.

In addition, the specific shape of the plurality of tapered spokes 28 constituting the cosmetic pattern region 26 is not limited to having the same size and shape as in the first embodiment as long as the expression of the assimilation phenomenon is not hindered. of isosceles triangles.

For example, as shown in FIG. 7 , like five types of tapered spokes 28a , 28b , 28c , 28d , and 28e , the cosmetic pattern region 26 can be constituted by a plurality of types of tapered spokes having different shapes and sizes. In addition, the tapered spokes 28 can also be formed in such a manner that, as exemplified in FIG. 8 , the apex portion of the inner peripheral end is a straight line extending in the circumferential direction, so that the tapered spokes 28 have a substantially trapezoidal shape as a whole, as illustrated in FIG. 9 . In this way, the apex portion of the inner peripheral end is rounded into the arcuate tapered spoke 28 .

In addition, in the cosmetic pattern area 26 shown in FIG. 7, a total of 5 types of tapered shapes 28b, 28c, 28d, and 28e are repeatedly arranged in the circumferential direction at a constant cycle, starting from the longest tapered spoke 28a and turning rightward. spokes. Accordingly, in any one of the tapered spokes 28a, 28b, 28c, 28d, and 28e, when focusing on one type, the tapered spokes of the one type have the same shape and size and are arranged at equal intervals in the circumferential direction. Specifically, focusing on the shortest tapered spokes 28d, a plurality of tapered spokes 28d having the same shape and size are arranged at equal intervals from each other in the circumferential direction, and are arranged between the tapered spokes 28d, 28d, respectively, in the circumferential direction There are 4 tapered spokes 28e, 28a, 28b, 28c of different sizes. In addition, in FIG. 7, the two tapered spokes 28b, 28e arranged on both sides in the circumferential direction of the longest tapered spoke 28a have substantially the same shape and size. Recognized as other types, any of the tapered spokes 28a, 28b, 28c, 28d, and 28e constituting the cosmetic pattern region 26 of the present embodiment can also be understood as being arranged at equal intervals in the circumferential direction with the same shape and size. constitute. In other words, in the cosmetic pattern area 26 of FIG. 7 , a plurality of types of tapered spokes 28a, 28b, 28c, 28d, and 28e arranged in a line in the circumferential direction are used as one pattern, and the pattern is arranged in the circumferential direction. arranged periodically.

In addition, the tapered spokes 28 only need to have a shape that tapers from the outer peripheral side toward the inner peripheral side, and does not need to be an isosceles triangle in which all three sides are straight as shown in the first embodiment. For example, the inclination angles of the side portions extending from the outer peripheral end of the tapered spokes 28 toward the inner periphery may be changed in the longitudinal direction. Specifically, as shown in FIG. 10 , the entirety of the spokes 28 may be curved and extend toward the inner periphery. , and the tapered spokes 28 of the shape in which the front end of the inner peripheral side does not face the center of the cosmetic pattern region 26 . In addition, two sides (hypotenuses) facing each other in the circumferential direction of the tapered spokes 28 and 28 are straight lines, and the width dimension of the non-colored portion continuously changes at a constant ratio in the radial direction, so that the assimilation phenomenon can be made radially. The transition is smoother, but it is not limited to this, and curves, polylines, etc. can also be used.

Furthermore, for the non-colored portion 32 located between adjacent tapered spokes 28, 28, its circumferential width dimension is largest at the inner peripheral end and smallest at the outer peripheral end of the adjacent tapered spokes 28, 28 . In addition, in the intermediate part located between the said inner peripheral end and the outer peripheral end, the width dimension of the inner peripheral side does not become smaller than the outer peripheral side, but becomes larger as it goes from the outer peripheral side toward the inner peripheral side. Furthermore, it is not necessary to continuously change the width dimension of the non-colored portion 32 throughout the entirety of the intermediate portion. For example, there may be a region in which the width dimension of the intermediate portion does not change locally in the radial direction, or the change ratio of the width dimension of the intermediate portion in the radial direction may be different continuously or in stages.

That is, as exemplarily shown in FIG. 11( a ), regarding the circumferential separation distance (equivalent to the width dimension of the non-colored portion 32 ) of the tapered spokes 28 , 28 adjacent in the circumferential direction, if the inner The following formula holds when the separation distance between A-A' at the peripheral end is Da, the separation distance between B-B' at the outer peripheral end is Db, and the separation distance between C-C' at any point in the middle part is Dc.

0<Db<Dc<Da

In addition, when the radial length dimensions of adjacent tapered spokes 28 and 28 in the circumferential direction are different from each other, as shown in FIG. The separation distance is Da of the above formula.

In addition, in one embodiment of the present invention, in the non-colored portion 32, for example, the value of the length dimension in the lens radial direction can be 0.5 to 4.5 mm, and the width dimension Da of the largest inner peripheral end and the width dimension of the smallest outer peripheral end can be adopted. The difference between Db and the value of Da-Db is 0.02 to 3.0 mm. In addition, in one embodiment of the present invention, the width of the inner peripheral end of the tapered spokes 28 can be adjusted by adopting the separation distance Da and the separation distance Db between the inner peripheral ends of the tapered spokes 28 and 28 adjacent in the lens circumferential direction. A configuration in which the dimension is smaller than the value of Da and the width dimension (W) of the outer peripheral end is larger than the value of Db.

In addition, the side (W) on the outer peripheral side of the tapered spoke 28 (corresponding to the base of an isosceles triangle) does not need to be a straight line of the bowstring shape of the outer peripheral circle of the cosmetic pattern region 26 . For example, a curved line such as an arc shape as shown in FIG. 12( a ) may be used. In addition, as shown in FIG. 12( b ), the intersections of the sides on the outer peripheral side of the tapered spokes 28 at both ends and the other two sides (hypotenuses) may be smoothly connected as circular arcs, or As shown in FIG. 12( c ), the C-chamfered shape is connected in a shape obtained by cutting corners. By adopting the corner shapes as described in (b) and (c) above, and by slightly widening the separation distance between the tapered spokes 28 and 28 at the outermost peripheral edge, it is possible to utilize the phenomenon of assimilation into the sclera, and thus the cosmetic pattern area can be The peripheral edge of 26 is tinted, and can also make the appearance more natural.

On the other hand, when Dc<Db is set contrary to the condition of the above formula, as exemplified in FIGS. 13( a ) to ( c ), the darker colored region is located in the radial direction of the cosmetic pattern region 26 The middle portion is easy to be visually recognized, and the assimilation phenomenon of the colors at the inner peripheral end and the outer peripheral end is less likely to be fully exhibited than in the radially middle portion, and as a result, a sense of incongruity is likely to be caused in appearance.

In addition, when Da<(Db, Dc) is set contrary to the condition of the above formula, as exemplified in (a) and (b) of FIG. The inner peripheral portion and the outer peripheral portion in the radial direction are easily visually recognized, and the assimilation phenomenon of the color in the radially intermediate portion is difficult to fully exert, and as a result, the appearance is likely to be uncomfortable.

In addition, when Db≦0 is set contrary to the condition of the above formula, as illustrated in FIG. 15 , a clear colored edge is visually recognized at the outer peripheral edge of the cosmetic pattern region 26 , and the assimilation phenomenon is not exhibited. The conspicuous outer edge caused by the contrast phenomenon results in an artificial appearance like a robot.

In order to confirm the effect of the present invention as described above, the results of the tests carried out by the present inventors are described below. In this test, the cosmetic pattern regions 26 composed of the coloring patterns of Examples 1 to 3 following the structure of the present invention shown in FIG. 16 and Comparative Examples 1 to 6 shown in FIGS. 17 to 18 were subjected to Sensory evaluation of visual confirmation (according to JIS Z9080:2004). In addition, the purpose of this test is not to investigate the preference, but to verify the visual confirmation of the details of the coloring patterns. Therefore, in order to easily observe the coloring patterns and compare each pattern, the following method is used. The coloring pattern is used in an overhead projection. A full-size image printed on a slide for OHP, and the OHP slide was superimposed on paper with a full-size photo of the eye printed in place of eyewear.

In addition, the test was carried out under a lighting environment suitable for the environment in which the computer monitor is operated, and it was noted that the lighting of the lighting device of the test environment was not reflected in the coloring pattern as the observation object. The distance between the test subject and the coloring pattern to be observed was approximately 50 cm. The test performers were 7 persons with sufficient knowledge and experience in cosmetic contact lenses.

[Experiment 1]

Test objects: Examples 1 to 3, Comparative Examples 1 to 3

Test method: With respect to the coloring pattern of each test object, the outermost peripheral portion was evaluated for whether or not unevenness of unevenness was seen in appearance. The evaluation results indicate the answers in the four items of "looks uneven (uneven)", "looks slightly uneven", "does not look uneven", and "does not look uneven".

Test results: shown in the following [Table 1].

[Table 1]

Example number look bumpy It looks a little bumpy Doesn't look too bumpy Doesn't look bumpy Example 1 7 Example 2 4 3 Example 3 3 3 1 Comparative Example 1 7 Comparative Example 2 7 Comparative Example 3 7

[Experiment 2]

Test objects: Examples 1 to 3, Comparative Examples 1 to 2

Test method: With respect to the coloring patterns of Examples 1 to 3 and Comparative Examples 1 to 2, compared with Comparative Example 3, which of the coloring patterns of the outermost peripheral portion was clearly seen to be darker was evaluated. The evaluation results indicate an alternative answer.

Test results: For all the test subjects, all seven test subjects answered, "Comparative example 3 can clearly see that the color is darker than the test subjects".

[Experiment 3]

Test objects: Examples 1 to 3, Comparative Examples 1 to 6

Test method: For the coloring pattern of each test object, do the "lines" (cone-shaped spokes) constituting the coloring pattern appear to be scattered and independent "lines", or do they appear to be closely integrated with adjacent "lines" Evaluate. The evaluation results indicate the responses in the four items of "looks loose", "looks a little loose", "looks a little close", and "looks close".

Test results: shown in the following [Table 2].

[Table 2]

Example number look scattered looks a little messy looks a little snug look snug Example 1 2 5 Example 2 1 1 5 Example 3 1 3 3 Comparative Example 1 6 1 Comparative Example 2 6 1 Comparative Example 3 1 4 2 Comparative Example 4 3 4 Comparative Example 5 2 2 3 Comparative Example 6 5 1 1

[Summary of test results]

From the results of Test 1, it was confirmed that when Db (distance between B-B') exceeded 0.2 mm, the outermost periphery of the colored pattern looked uneven.

From the results of Test 1 and Test 2, it was confirmed that even in Example 1, in which all the test subjects answered "It does not look uneven", in comparison with Comparative Example 3 in which Db was 0 mm, all the test subjects answered "Comparative Example 3 was clearly seen to have a darker color", and there was a gap in Db, resulting in a difference in sharpness.

In Test 3, in Examples 1 to 3 and Comparative Examples 1 to 2, the shape of the tapered spokes was the same and Db was changed, but by comparing these, it was confirmed that the spokes could be clearly visually recognized when Db exceeded 0.2 mm. shape, and it was confirmed that basically no assimilation was exhibited.

Comparative Examples 4 to 6 are all coloring patterns in which the adjacent colored portions, that is, the separation distance between the spokes, does not satisfy the above-mentioned conditional expression "0<Db<Dc<Da". Since it is the same Db, it was evaluated as "concave and convex" in Test 1 by analogy. In Comparative Example 6, according to the results of Test 3, it was confirmed that the spoke shape was clearly visually recognized, and it was confirmed that no assimilation occurred.

The embodiments and examples of the present invention have been described above in detail, but the present invention is not to be construed as being limited to these specific descriptions.

For example, the specific color of the tapered spokes 28 is not limited by brightness, hue, chromaticity, density, and the like. That is, not only the natural corneal color and scleral color of the human eye vary according to race and individual differences, but also the desired color of cosmetic contact lenses varies according to applications, individual differences, etc. Accordingly, the color of the tapered spokes 28 can be appropriately set. In addition, since there is a tendency that colors that are similar to each other tend to cause color assimilation, for example, it is possible to prepare tapered spokes of various colors and provide them to the market in consideration of race.

In addition, the optical portion 14, the non-colored portion 32, the outer peripheral transparent region 30, etc. of the cosmetic contact lens of the present invention may be colorless, transparent, colored and transparent. As for the transparent color, the non-colored portion 32 can be set to a transparent color in consideration of the color of the iris, the cosmetic effect on the appearance, and the like. However, in the cosmetic pattern region 26, the light transmittance and color density are set to be different so that the tapered spokes 28 can be recognized as colored regions with respect to the non-colored portion 32 and assimilated.

In addition, the method of setting the tapered spokes 28 in a colored state with respect to a contact lens is not limited in the present invention. As an example for reference, as described in Japanese Patent Laid-Open No. 3-54519, etc., it is possible to color when a molded single base of a contact lens is molded and molded into a contact lens, or it can be hand-painted, photographed, or screen-printed. etc. In addition, pad printing and inkjet printing can also be used in consideration of the spherical shape of the covering surface, mass productivity, coloring accuracy, color reproducibility, and the like.

In addition, the tapered spokes 28 can be changed in color by, for example, gradually becoming darker from the inner peripheral side toward the outer peripheral side, or the entire color (brightness, color, chromaticity, and density) may be substantially constant. In addition, among the plurality of tapered spokes, different colors can be set, but by using the tapered spokes of the same color, the appearance of a uniform color as a whole can be exhibited in the cosmetic pattern area. Furthermore, in the case where the tapered spokes are colored in dots with a light-transmitting or opaque coloring material, etc., a region where the dots are not attached can be left, and the non-colored portion between adjacent tapered spokes can be considered. Assimilation of the resulting color, the tapered spoke is preferably a colored region in a substantially uniform solid coating state in which the entire surface is translucent or opaque.

In addition, the tapered spokes constituting the cosmetic pattern area are generally arranged in a circle around the optical portion, the geometric center of the lens, etc., but for example, when the cornea is deviated from the geometric center in the wearing state like a decentered lens, it is not necessarily limited. ground is interpreted as the central location.

In addition, the cosmetic contact lens according to the present invention has a colored portion (colored band portion) composed of tapered spokes, but other colored structures may be used in combination as long as the effect of assimilation is not inhibited. For example, as exemplified in FIG. 19 , the tapered spokes 28 can be combined with a mark 36 such as a guide mark for indicating the wearing direction that can be seen in a contact lens for astigmatism or the like.

In addition, in the above-described embodiment, several specific examples of the tapered spokes that can be used in the present invention are listed, but these are merely examples and do not serve as a basis for limited interpretation. In addition, in FIG. 7 , the form in which the tapered spokes having different radial lengths are combined to form the cosmetic pattern region is illustrated, but in the present invention, the radial length is not limited, and the inner peripheral end and the outer peripheral end can be Various tapered spokes different from each other, such as a radial middle portion, are appropriately combined to constitute a cosmetic pattern area. More specifically, for example, tapered spokes with different circumferential widths, non-colored portions with different circumferential widths and shapes, and tapers with different shapes of inner circumferential ends, outer circumferential ends, and radially intermediate portions can also be used. The beauty area is constituted by appropriately combining tapered spokes, tapered spokes of different colors and transparencies, and the like.

Other than this, it is needless to say that the present invention can be implemented in a form in which various changes, corrections, improvements, etc. are added based on the knowledge of those skilled in the art, and such an embodiment does not deviate from the present invention. The gist of the invention is included in the scope of the present invention.

Description of reference numerals

10...cosmetic contact lens; 12...geometric center; 14...optical portion; 16...peripheral portion; 18...rim portion; 20...eye black (cornea); , dividing line); 26...cosmetic pattern area; 28, 28a, 28b, 28c, 28d, 28e...tapered spokes; 30...peripheral transparent area; 32...non-colored portion; 36...logo.

Claims (10)

1. A contact lens for beauty, characterized in that,

in the peripheral portion on the outer peripheral side of the optical portion, a plurality of tapered spokes composed of a colored portion having a tapered shape with a tip whose width decreases from the outer peripheral side to the inner peripheral side of the lens are arranged in the lens circumferential direction to provide a cosmetic pattern region having an annular shape as a whole,

the outer diameter of the pattern region for beauty treatment is 11.0 to 14.0mm, the pattern region for beauty treatment is present over the inner circumference side and the outer circumference side of the corneal rim part of the wearing eye, the inner circumference end of the pattern region for beauty treatment is positioned on the cornea and the outer circumference end is positioned on the sclera,

on the other hand, the conical spokes adjacent in the lens circumferential direction are separated from each other and provided with non-colored portions extending over the entire length in the radial direction therebetween,

the minimum separation distance between the outer peripheral ends of the conical spokes adjacent to each other in the circumferential direction of the lens is 0.01 to 0.20mm,

and the width dimension of the non-colored portion becomes larger from the outer peripheral side toward the inner peripheral side of the lens.

2. The cosmetic contact lens of claim 1,

the width of the spoke at the outer circumferential end with the largest width in the conical spoke is 0.1-1.0 mm.

3. The cosmetic contact lens according to claim 1 or 2,

in the tapered spokes adjacent in the lens circumferential direction, the separation distance Da at the inner peripheral end and the separation distance Db at the outer peripheral end have a relationship of 0 < Db < Dc < Da with the separation distance Dc at the intermediate portion.

4. The cosmetic contact lens according to any one of claims 1 to 3,

regarding the separation distance Da of the inner peripheral end and the separation distance Db of the outer peripheral end of the tapered spokes adjacent in the lens circumferential direction, the width dimension of the inner peripheral end of the tapered spokes is smaller than the value of Da and the width dimension of the outer peripheral end is larger than the value of Db.

5. The cosmetic contact lens according to any one of claims 1 to 4,

the tapered spokes are formed of a base at the outer peripheral end and two oblique sides extending from both ends of the base toward the inner peripheral side, respectively, and each of the oblique sides is formed in a triangular shape longer than the base.

6. The cosmetic contact lens according to any one of claims 1 to 5,

the tapered spokes are colored portions having substantially constant luminance, hue, chroma, and density throughout the entirety.

7. The cosmetic contact lens according to any one of claims 1 to 6,

the tapered spokes are solid colored portions that are substantially uniform throughout.

8. The cosmetic contact lens according to any one of claims 1 to 7,

a plurality of the tapered spokes are concentrically arranged relative to the geometric center of the optic or the lens.

9. The cosmetic contact lens according to any one of claims 1 to 8,

the width dimension of the non-colored portion in the lens circumferential direction changes so as to gradually increase continuously from the lens outer circumferential side toward the lens inner circumferential side over the entire length of the non-colored portion in the radial direction.

10. The cosmetic contact lens according to any one of claims 1 to 9,

in the non-colored portion, the length dimension of the lens in the radial direction has a value of 0.5 to 4.5mm, and the difference Da-Db between the width dimension Da of the largest inner peripheral end and the width dimension Db of the smallest outer peripheral end has a value of 0.02 to 3.0 mm.

Images