TWI765057B - Beauty Contact Lenses - Google Patents

Abstract

The present invention provides a novel cosmetic contact lens capable of making pupils look larger while adapting to the wearer's eyes and suppressing a sense of incongruity in appearance.

In the peripheral portion 16 located on the outer peripheral side of the optical portion 14, a tapered spoke 28 formed of a colored portion of a tapered shape whose width dimension decreases from the outer peripheral side of the cosmetic contact lens 10 toward the inner peripheral side is placed in the peripheral direction of the lens. Plural are arranged on the top, whereby as a whole there is an annular cosmetic pattern area 26, the cosmetic pattern area 26 extends over the inner peripheral side and the outer peripheral side of the corneal outer edge portion 24 of the wearing eye, within the cosmetic pattern area 26 The peripheral end is located on the cornea, and the outer peripheral end is located on the sclera. On the other hand, the adjacent tapered spokes 28, 28 in the circumferential direction of the lens are separated from each other, and a non-pigmented portion extending over the entire length of the radial direction is provided between each other. 32. The non-colored portion 32 increases in width from the outer peripheral side of the lens toward the inner peripheral side.

Description

Beauty Contact Lenses

The present invention relates to a cosmetic contact lens, and more particularly, to a contact lens capable of allowing the pupil to see the wearer's eyes while suppressing the appearance of incongruity by having a patterned area composed of a colored portion in a novel form. A cosmetic contact lens can provide a natural makeup (beauty) effect that has not been achieved in the past because of its larger size.

Conventionally, as a type of contact lenses to be worn on the surface of the eyes, there have been proposed some cosmetic contact lenses that provide cosmetic effects by coloring parts. Conventionally known cosmetic contact lenses include those that change the color of the pupils and those that make the pupils appear larger.

The former is to colorize only the inner peripheral side than the boundary line between the black eyeball and the white of the eye (limbal), and use the coloring part to cover the part of the black eyeball (around the pupil) where the color of the iris can be seen through the cornea. This makes the part of the black eyeball appear to be a different color from the original. On the other hand, as shown in Japanese Patent Application Publication No. 2008-511025 (Patent Document 1), the latter has a colored region having a ring shape larger than the outer diameter of the corneal limbus and even covering the white part of the outer periphery of the pupil. And make the black eyeball look bigger.

Regarding the latter cosmetic contact lenses for making black eyeballs look larger, not only the outer diameter of the black eyeballs is enlarged, but also the outer edge of the black eyeballs is clearly emphasized to make it clear, thereby making it possible to make the eyes and even the whole face more visible. The expression looks cute, or looks bright. Therefore, the outer edge of the colored region is formed with a clearly visible circular line.

However, as a result of repeated studies by the present inventors, it was found that if the outer edge of the colored region is formed with a clear circular line, and the boundary line between the black eyeball and the white of the eye is made a clear and clear line to make it stand out, it will not be seen by others. It leaves an impression that is too artificial and can easily be seen as the eyes of robots (prosthetic eyes), especially for ordinary people who are not models, etc., and may not achieve the purpose of "making the eyes look beautiful as a whole".

Furthermore, based on this knowledge, the present applicant disclosed a novel colored contact lens in Japanese Patent Application Laid-Open No. 2013-65059 (Patent Document 2) and Japanese Patent Application Laid-Open No. 2013-130658 (Patent Document 3). By adjusting the density or light transmittance of the outer peripheral side of the colored area covering the outer edge of the black eyeball, the artificial appearance can be alleviated by avoiding an unnatural appearance.

[Prior Art Literature]

[Patent Literature]

[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

The present invention was made under the background of the above-mentioned circumstances, and the problem to be solved is to provide a novel cosmetic contact lens with a different configuration from Patent Document 2 and Patent Document 3, which can avoid colored contact lenses as described in Patent Document 1. The unnatural appearance of eyeglasses accommodates the wearer's eyes and suppresses the appearance of incongruity, while making the pupils appear larger.

The feature of the present invention resides in a cosmetic contact lens comprising, in the peripheral portion located on the outer peripheral side of the optical portion, a colored portion having a tapered shape that decreases in width from the outer peripheral side of the lens toward the inner peripheral side The tapered spokes of the lens are arranged in a plurality in the circumferential direction of the lens, thereby providing a circular-shaped cosmetic pattern area as a whole. The outer diameter of the cosmetic pattern area is set to 11.0~14.0mm. The patterned area covers the inner and outer peripheral sides of the outer edge of the cornea of the wearing eye, the inner peripheral end of the cosmetic pattern area is located on the cornea, and the outer peripheral end is located on the sclera, on the other hand, in the circumferential direction of the lens. The adjacent tapered spokes are separated from each other, and a non-colored portion extending over the entire length of the radial direction is provided between each other. It is set to 0.01-0.20 mm, and this non-colored part becomes large in width dimension from the outer peripheral side of a lens toward the inner peripheral side.

The present invention utilizes the assimilation phenomenon of color, which is one of the illusions of the eye, in the cosmetic pattern region covering the inner and outer peripheral sides of the outer limbus of the cornea, especially by making the assimilation phenomenon gradually gradation in the radial direction. The basic technical idea is to make the pupil look larger while adapting the cosmetic pattern area to both the black eyeball of the cornea and the white of the sclera, and suppressing the incongruity in appearance.

That is, in the cosmetic contact lens having the structure according to 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 of colors approaching each other occurs between the tapered spokes and the eyes that see through the non-colored parts. As a result, in the cosmetic pattern region, an appearance that fits the wearer's eyes is presented.

Furthermore, the inner peripheral portion of the cosmetic pattern area located on the black eyeball portion of the cornea adapts to the wearer's black eyeball portion to present a natural appearance, and the outer peripheral portion of the cosmetic pattern area located on the white portion of the sclera is adapted to the wearer's eyeball portion. The white part of the eye, whereby the enlarged outer limbus of the cornea can be realized in a natural way.

In addition, in the non-colored portion in the cosmetic pattern region, by increasing the width from the outer periphery toward the inner periphery, the assimilation phenomenon gradually changes in the radial direction, and the assimilation phenomenon gradually changes in the inner peripheral portion and the outer peripheral portion. Variety. That is, the inner peripheral portion of the cosmetic pattern area advantageously exerts the assimilation effect of the color of the tapered spokes close to the color of the wearer's cornea, and on the other hand, as it advances to the outer peripheral side of the cosmetic pattern area, the wearer's assimilation effect is exerted. The corneal color gradually approximates the assimilation of the color of the conical spokes. Such assimilation in the radial direction converts, for example, even if the color of the tapered spokes is different from the color of the wearer's cornea, it overall appears to be integrated with the natural corneal color for a less incongruent appearance. Therefore, for example, while giving a color clearer than that of the wearer's cornea, the outer limbus of the cornea can be made to appear larger, while suppressing the feeling of incongruity caused by the difference from the wearer's original corneal color, and thereby giving the overall color to the wearer's cornea. A more natural look.

In addition, in the present invention, one or a plurality of the following aspects can be appropriately applied in combination.

One aspect that can be applied to the present invention is a cosmetic contact lens in which the width of the tapered spokes whose width is the largest at the outer peripheral end is 0.1 to 1.0 mm.

According to this aspect, the assimilation of the outer peripheral portion of the cosmetic pattern region is improved, and a more natural appearance can be expressed. If the spoke width dimension at the outer peripheral end becomes smaller than 0.1 mm, there is a case where the clarity in appearance decreases, and it becomes difficult to obtain the cosmetic effect of making the outer edge of the cornea of the wearer appear significantly larger by the cosmetic pattern. On the other hand, if the width of the spokes at the outer peripheral end exceeds 1.0 mm, there may be cases in which the sharpness becomes more conspicuous in appearance, and the outer edge of the cornea of the wearer has a feeling of incongruity in appearance due to the cosmetic pattern given. .

One aspect that can be applied to the present invention is a cosmetic contact lens, that is, among the above-mentioned tapered spokes adjacent in the circumferential direction of the lens, the separation distance Da of the inner peripheral end, the separation distance Db of the outer peripheral end, and the intermediate The separation distance Dc of the parts has a relationship of 0<Db<Dc<Da.

According to this aspect, as illustrated in FIG. 7 or FIG. 11 , the width dimension of the non-colored portion provided between the adjacent tapered spokes is set at any position of the intermediate portion between the inner peripheral end and the outer peripheral end. is larger than the outer peripheral end and smaller than the inner peripheral end. As a result, the gradual increase of the assimilation phenomenon is particularly improved in the inner peripheral portion and the outer peripheral portion, and the assimilation to the cornea in the inner peripheral portion and the assimilation from the cornea to the sclera in the peripheral portion can be promoted.

One aspect that can be applied to the present invention is a cosmetic contact lens, that is, with respect to the separation distance Da of the inner peripheral ends and the separation distance Db of the outer peripheral ends of the tapered spokes adjacent in the circumferential direction of the lens, The width dimension of the inner peripheral end of the tapered spoke is set to be smaller than the value of Da, and the width dimension of the outer peripheral end is set to be larger than the value of Db.

According to this aspect, in the cosmetic pattern region, the assimilation to the cornea in the inner peripheral portion and the assimilation to the sclera in the outer peripheral portion are improved, respectively, and it is possible to further reduce the incongruity in appearance.

One aspect that can be applied to the present invention is a cosmetic contact lens in which the tapered spokes are formed from a base at the outer peripheral end and from both ends of the base to extend toward the inner peripheral side, respectively. A triangular shape formed by 2 hypotenuses and each hypotenuse is longer than the base.

According to this aspect, the assimilation phenomenon and its radial gradient effect can be expressed by the relatively simple shape of the tapered spoke.

One aspect that can be applied to the present invention is a cosmetic contact lens in which the tapered spoke is provided as a colored portion having substantially constant lightness, hue, chroma, and density throughout the entirety.

According to this aspect, although the tapered spokes are formed in a substantially constant color as a whole, the assimilation phenomenon as described above and the gradation effect in the radial direction can achieve a natural appearance while adapting to the cornea on the inner peripheral side and facing the outer periphery. The cosmetic effect of making the outer edge of the cornea appear larger.

One of the aspects that can be applied to the present invention is a cosmetic contact lens in which the tapered spokes are provided throughout a substantially identical fully colored portion.

According to this aspect, although the tapered spokes are formed to be fully colored, in the wearing state, a natural appearance can be expressed by assimilating the color of the wearer's cornea through a non-colored area through a third party.

One aspect applicable to the present invention is a cosmetic contact lens in which a plurality of the tapered spokes are arranged concentrically with respect to the geometric center of the optical portion or the lens.

According to this aspect, in a normal contact lens for correction of, for example, myopia, hyperopia, or presbyopia, the cosmetic pattern region can be skillfully arranged so as to overlap the outer peripheral portion of the cornea of the wearer.

One of the aspects applicable to the present invention is a cosmetic contact lens in which the above-mentioned tapered spokes having the same shape and size are arranged at equal intervals in the circumferential direction.

In this aspect, with regard to the appearance pattern of the cosmetic pattern region, it is easy to avoid the appearance of a specific part on the circumference, and to have a substantially uniform appearance in the circumferential direction. Furthermore, in this aspect, all the tapered spokes constituting the cosmetic pattern area can also be set as tapered spokes having the same shape and size. The above-mentioned non-colored portions of the shape and size are arranged in the circumferential direction. Of course, in this aspect, tapered spokes with different shapes or sizes can also be arranged between the circumferential direction of a plurality of tapered spokes with the same shape and size arranged at equal intervals in the circumferential direction.

One aspect that can be applied to the present invention is a cosmetic contact lens in which the width dimension in the circumferential direction of the lens in the non-pigmented portion is continuously directed from the outer peripheral side of the lens over the entire length in the radial direction of the non-pigmented portion. The way in which the inner peripheral side of the lens gradually becomes larger is changed.

According to this aspect, the gradation effect of the assimilation phenomenon in the radial direction is exerted in a smoother transition pattern throughout the entire length of the non-colored portion, so that a more natural presentation can be given.

One aspect that can be applied to the present invention is a cosmetic contact lens in which, in the non-colored portion, the value of the length dimension in the radial direction of the lens is set to 0.5 to 4.5 mm, and is set within the maximum The value of the difference Da-Db between the width dimension Da of the peripheral end and the width dimension Db of the outer peripheral end set as the smallest is set to 0.02 to 3.0 mm.

According to this aspect, the radial length of the assimilation phenomenon can be secured in such a manner that the gradual effect of the assimilation phenomenon is more effectively exhibited in the cosmetic pattern region.

According to the present invention, in a cosmetic pattern region composed of a specific colored portion and a non-colored portion, it is possible to provide a novel method that utilizes the assimilation phenomenon with respect to the color of the wearer's eyes, and further makes the assimilation phenomenon gradually change in the radial direction. Beauty contact lenses.

10‧‧‧Cosmetic Contact Lenses

12‧‧‧Geometry Center

14‧‧‧Optics Department

16‧‧‧Peripheral Department

18‧‧‧Edge

20‧‧‧Black eyeball (cornea)

22‧‧‧White (sclera)

24‧‧‧ Corneal limbus (outer limbus, junction line)

26‧‧‧Patterned area for beauty

28, 28a, 28b, 28c, 28d, 28e‧‧‧Tapered spokes

30‧‧‧Peripheral transparent area

32‧‧‧Non-colored parts

36‧‧‧Marking

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

Fig. 2 is a front view showing a 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 effect in the radial direction of the cosmetic contact lens shown in FIG. 2 .

Fig. 4 is a first reference example for explaining the assimilation action in the cosmetic pattern region.

Fig. 5 is a second reference example for explaining the assimilation action in the cosmetic pattern region.

Fig. 6 is an explanatory diagram for explaining the assimilation action in the cosmetic pattern region.

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

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

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

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

Fig. 11 is an explanatory diagram for explaining the shape of the tapered spokes constituting the cosmetic pattern region in the present invention.

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

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

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

Fig. 15 is a diagram illustrating a case where the outer peripheral ends of adjacent tapered spokes are made to be continuous in the circumferential direction by setting the width dimension of the non-pigmented portion in the cosmetic pattern region to 0 at the outer peripheral end in the radial direction of the lens. The aspect is a front view of a comparative example of the present invention.

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

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

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

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

Hereinafter, embodiments of the present invention will be described with reference to the 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 is surrounded or sandwiched by another color, and the color looks similar to another color, which is a kind of optical illusion. Specifically, the color assimilation phenomenon will be described using the reference diagram shown in FIG. 1 .

That is, in Fig. 1(a), a plurality of parallel gray lines arranged at fixed intervals are shown as a certain color, and in (a1), the gap between adjacent gray lines is set as another color. White lines of one color, on the other hand, in (a2), the gaps between adjacent gray lines are set as black lines of another color. When (a1) and (a2) are observed in contrast, the assimilation phenomenon that (a2) appears to be grayer than (a1) about the gray lines of the same color can be perceived.

1(b), a plurality of parallel black lines arranged at regular intervals are shown as a certain color, and in (b1), the gap between the adjacent black lines is set as another White lines of one color, on the other hand, in (b2), the gaps between adjacent black lines are set as gray lines of another color. When (b1) and (b2) are observed in comparison, it can be perceived that the black line which is the same color, (b2) appears to be an assimilation phenomenon of black which is closer to gray than (b1).

In addition, in FIG.1(c), similarly to (a), there is shown a state in which a plurality of parallel black lines are arranged adjacent to each other and in parallel with the gray lines interposed therebetween, but the distance between them is larger than that of (a). If (a) and (c) are compared and observed, it can be seen that if the distance between the lines is too large, the assimilation of colors is difficult to occur, and a contrast phenomenon with clear boundaries between the surrounding colors will be produced instead.

The cosmetic contact lens of the present invention utilizes this color assimilation phenomenon, but is not limited to this. In the present invention, in addition to the assimilation phenomenon of color, the assimilation phenomenon is gradually changed in the radial direction of the pupil. That is, the assimilation effect and its degree in the assimilation phenomenon of colors are different according to the size of the adjacent gaps of a certain color, as can be known from (a), (b), (c) of Figure 1. The present inventors discovered that by focusing on this phenomenon, it is possible to gradually change and control the direction or degree of color assimilation in the radial direction of the pupil. Furthermore, by disposing a colored portion of a specific shape on the contact lens in a specific arrangement to form a cosmetic pattern region composed of a colored portion and a non-colored portion, the following novel cosmetic contact lens can be realized, that is, By making the outer peripheral part conform to the appearance of the sclera and make it clear to some extent, while making the pupil (the part of the black eyeball) appear larger in appearance, it can be made to look natural to the human eye. The pupil color is adapted to reduce the incongruity in appearance.

In FIG. 2, the front view of the cosmetic contact lens 10 which is the 1st Embodiment of this invention is shown. The cosmetic contact lens 10 has a shape according to a conventionally known ordinary contact lens, and is formed in a partial spherical shell shape having a convex front surface set as a spherical cap shape, and a concave shape rear surface set as a spherical cap shape , to be worn on the surface of the cornea of the eye.

Furthermore, the material of the cosmetic contact lens 10 is not limited. For example, in addition to rigid lenses such as RGP lenses (oxygen permeable lenses) or PMMA (polymethyl methacrylate), PHEMA (polyhydroxymethyl methacrylate) lenses can also be used. ethyl ester) or the like, non-aqueous such as acrylic elastomers, or soft contact lenses with high oxygen permeability such as polysiloxane hydrogels. In particular, soft contact lenses can be preferably used in the present invention because soft contact lenses generally have a larger diameter and adequately cover the white part of the eye and move less on the cornea than hard contact lenses.

In addition, the cosmetic contact lens 10 is provided with an optical portion 14 that transmits light incident on the optical system of the eye in a substantially circular central region around a center point that is substantially the same as or slightly shifted from the geometric center 12 of the lens. The optical part 14 has an outer diameter φ A larger than that of the pupil of the human eye, and is positioned on the pupil by overlapping with the cornea when worn.

Further, a peripheral portion 16 is provided on the outer periphery of the optical portion 14 with a predetermined width and in an annular shape so as to surround the optical portion 14 . The peripheral portion 16 deviates from the projection light path to the optical system of the eye in the wearing state, and is provided in consideration of the stability of the position on the eyeball, the improvement of the wearing feeling, and the like. Moreover, the outer peripheral end of the peripheral part 16 is set as the edge part 18 which connects the front surface of a lens and the rear surface of a lens.

Furthermore, the optical portion 14 can be provided with a specific optical property to provide a correcting function for vision abnormalities such as myopia, hyperopia, and presbyopia, whereby the cosmetic contact lens (lens) 10 can also be used 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 non-vision correction contact lens, for example, it can be used as a cosmetic lens (contact lens for beauty or modification).

Furthermore, the outer diameter dimension (DIA) of the cosmetic contact lens 10 of the present embodiment is such that the part (cornea) of the black eyeball 20 of the eye can be completely covered, and the part (sclera) of the white of the eye 22 can be covered with a predetermined width. set up. That is, the DIA of the cosmetic contact lens 10 is larger than the outer diameter dimension φB of the boundary line (limb) 24 of the black eyeball 20 and the white 22 of the eye, and the limbus 24 is located more than the outer periphery of the cosmetic contact lens 10 in the wearing state. The edge portion 18 of the rim is closer to the inner peripheral side. Furthermore, the black eyeball 20 is an area where the color of the iris of the eye can be visually recognized from the outside, and it is an area where the iris can be seen through the transparent cornea. Therefore, the boundary line 24 can be understood as the contact between the cornea and the white sclera on the outer peripheral side. borderline.

Furthermore, this cosmetic contact lens 10 is provided with a cosmetic pattern region 26 composed of a colored band portion extending in a substantially annular shape as a whole.

In particular, in this embodiment, the cosmetic pattern area 26 is arranged concentrically around the lens geometric center axis (eg, the lens optical axis) passing through the geometric center 12 in the peripheral portion 16 . Furthermore, when the cosmetic contact lens 10 is worn on the eye, the cosmetic pattern region 26 has a diameter extending radially over both the inner peripheral side and the outer peripheral side of the corneal limbus (corneal peripheral portion) 24 of the eye. In the width direction, on the inner peripheral side of the limbus 24 , the cosmetic pattern area 26 overlaps the black eyeball 20 , and on the outer peripheral side of the corneal limbus 24 , the cosmetic pattern area 26 overlaps on the white of the eye 22 .

Furthermore, the cosmetic pattern region 26 is desirably set to such an extent that the inner diameter φC (see FIG. 2 ) does not substantially overlap with the pupil in many situations of the wearer's daily life. Thereby, the visual influence of the pattern area 26 for cosmetics is suppressed. On the other hand, the outer diameter dimension of the cosmetic pattern region 26 is set so as to cover the white of the eye 22 with a predetermined width. Thereby, the cosmetic effect of making the corneal limbus 24 appear larger in appearance is exhibited.

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

The cosmetic pattern region 26 in the present embodiment is configured as a tapered spoke composed of a tapered colored portion in which the width dimension in the circumferential direction decreases from the outer peripheral side of the lens toward the inner peripheral side. A plurality of 28 are arranged in the circumferential direction of the lens, so that the inner and outer middle portions in the radial direction are expanded with a substantially constant width dimension in the circumferential direction. That is, the cosmetic pattern area 26 has: a colored portion of the tapered spokes 28, which is regarded as dark in appearance; and a non-colored portion 32, which is located between the adjacent tapered spokes 28, 28 and is visually recognized It is recognized as transparent (including colorless transparent and colored transparent). Thereby, the plurality of tapered spokes 28 are arranged concentrically with respect to the geometric center 12 of the optic 14 or lens.

Furthermore, the inner diameter dimension of the cosmetic pattern area 26 is the diameter of a circle connecting the innermost points of the plurality of tapered spokes 28, and the outer diameter dimension of the cosmetic pattern area 26 is set to connect the plurality of tapered spokes. The diameter of the circle connecting the outermost points of 28. In addition, when the cosmetic pattern region 26 is constituted by a plurality of tapered spokes 28 with different radial lengths as in the following another aspect, the smallest inscribed circle and the largest inscribed circle among the plurality of tapered spokes 28 are used. Understand the inner diameter φC and outer diameter φD of the cosmetic pattern region 26 (refer to FIG. 7 for φC). However, the inscribed circle or circumscribed circle of the cosmetic pattern region 26 does not need to be a true circle, and may be, for example, a vertically or horizontally long oval shape.

In order to sufficiently obtain the intended cosmetic effect or the like, the cosmetic pattern region 26 is usually 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. . Furthermore, the radial width dimension of the cosmetic pattern region 26 is preferably fixed over the entire length in the circumferential direction. That is, the inner periphery and outer periphery of the cosmetic pattern region 26 can have the smallest inscribed circle (not limited to the true circle) and the largest inscribed circle (and the largest inscribed circle in the case of, for example, the tapered spokes 28 as described above). It is not limited to a true circle), but by designing these inscribed circles and circumscribed circles concentrically and having similar shapes, the radial width dimension of the cosmetic pattern region 26 can be fixed over the entire circumference. On the other hand, for example, the centers of the inscribed circles and the circumscribed circles of the plurality of tapered spokes 28 are shifted from each other, or the inscribed circles and the circumscribed circles are formed into dissimilar shapes, etc., the cosmetic pattern region 26 can also 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. Furthermore, considering the size of the cornea of an ordinary person in such a way that the inner periphery of the cosmetic pattern area 26 covers the black eyeball 20, the inner diameter dimension φC of the cosmetic pattern area 26 is preferably set to φ13mm or less.

Also, on the other hand, the area where the whites of the eyes 22 are sufficiently left on the outer periphery of the cosmetic pattern area 26 is more natural when worn, and the beauty of the whites of the eyes 22 is more effective for makeup effects. The diameter dimension φD is preferably φ14 mm or less. Furthermore, the outer diameter dimension φ D of the cosmetic pattern region 26 is preferably φ 11 mm or more, more preferably φ 12 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 constituted by a plurality of tapered spokes 28 arranged at predetermined intervals in the circumferential direction, and not only provides the cosmetic effect of making the corneal limbus 24 appear larger in appearance as described above, but also For a third person observing the wearer, it suppresses unnaturalness and gives the appearance of the appearance after the wearer's eyes naturally adapt.

3 , the gray background color corresponding to the cornea shown in FIG. 3( a ) will be superimposed on a plurality of blacks constituting the cosmetic pattern area 26 in the cosmetic contact lens 10 shown in FIG. 2 . The tapered spokes 28 are shown in Figure 3(b). In addition, in the following drawings which describe the pattern region 26 for beauty, the illustration of the outer shape of a lens is abbreviate|omitted. In addition, in order to make description and understanding of invention easy, it shows with an enlarged view.

As can be seen from Fig. 3(b), in the black tapered spokes 28, an assimilation phenomenon of gray, which looks close to the ground color, occurs. Furthermore, it can be seen that the black tapered spokes 28 are different from the inner peripheral side and the outer peripheral side of the cosmetic pattern region 26 in that the degree to which the black tapered spoke 28 looks close to the gray of the ground color. The black tapered spokes 28 on the inner peripheral side appear closer to the ground color gray than on the outer peripheral side.

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

Furthermore, in the outermost peripheral portion of the cosmetic pattern region 26, each tapered spoke 28 is positioned so as to extend from the black eyeball to the region of the white of the eye. Since the non-colored portion 32 is provided on the outermost peripheral portion of the cosmetic pattern region 26 and between the adjacent tapered spokes 28 and 28, the whites of the eyes that can be seen through the non-colored portion appear to be close to a tapered shape. Assimilation of the color of the colored portion of the spoke 28. 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 becomes unclear in appearance.

In this way, the cosmetic pattern area 26 adapts to the color of the wearer's black eyeballs on the inner peripheral portion, and transitions to the color of the tapered spokes 28 toward the outer peripheral portion without a sense of incongruity, and further, in the cosmetic pattern area 26 The outermost part of the outermost part is extended and extended to the outer periphery of the black eyeball, so that the makeup effect of making the wearer's black eyeball appear larger in appearance can be exhibited while suppressing the boundary line with the white of the eye. Naturally adapted appearance.

That is, in the wearing state of the cosmetic contact lens 10 of the present embodiment, by utilizing the assimilation phenomenon of the color of the cosmetic pattern region 26 gradually changing in the radial direction, the color of the iris in the inner peripheral portion is tapered toward the outer peripheral portion. The color of the tapered spokes 28 is smoothly transitioned, and then, at the outermost peripheral portion, the color of the tapered spokes 28 is assimilated with the color of the sclera (white of the eye), thereby reducing the appearance of incongruity. The adaptation of this color appears to be in such a way that, for example, it is impossible to clearly distinguish the boundary between the cornea (black eyeball) and the sclera (white of the eye) (corneal limbus or limbus) anatomically. The junction is clearly identified when there is a gradual transition from the color of the iris to the color of the tapered spokes 28 and then to the color of the sclera by color assimilation. Moreover, by blurring and gradually transitioning the boundary between the color of the eye and the color of the tapered spokes 28, the tapered spokes 28, which are artificially colored to make the black eyeball appear larger, can appear close to the wearer's natural eye. color appearance.

In order to obtain such an effect, the colored portion constituting the cosmetic pattern region 26 is formed as a tapered spoke 28 having a tapered shape as shown in the illustration, and between the adjacent tapered spokes 28 and 28, there are provided with a full diameter. The non-colored portion 32 extending continuously in the radial direction to the full length thereof.

If different from the structure according to the present invention, for example, instead of the tapered spokes 28, rod-shaped (rectangular) spokes extending in the radial direction with a fixed width dimension are used, the gap between the adjacent spokes in the circumferential direction is not Contrary to the present invention, the width dimension of the colored region becomes smaller on the inner peripheral side and larger on the outer peripheral side. Therefore, it is difficult to exert the assimilation effect in the outermost peripheral portion extending to the outer periphery of the black eyeball, and the outermost peripheral portion is serrated and conspicuous in appearance, and it is easy to feel unnatural and uncoordinated in appearance to a third party sense.

Also, even when the tapered spokes 28 having a tapered shape as shown in FIG. 4 are used as the reference example 1, if the configuration of the present invention is different from that of the present invention, the adjacent tapered spokes 28 are used. The spokes 28, 28 are continuous with each other 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 pattern region 26, so that the outer peripheral portion of the cosmetic pattern region 26 does not exhibit color. the phenomenon of assimilation. Therefore, the outer peripheral end of the colored portion that is continuous throughout the entire circumference is conspicuous in appearance, and is artificial and robot-like unnatural and incongruous to a third party.

Furthermore, in this embodiment, the non-colored portion 32 provided between the adjacent tapered spokes 28 and 28 in the circumferential direction of the lens is provided with a width that increases from the outer peripheral side of the lens toward the inner peripheral side. Contrary to this, if, for example, as shown in FIG. 5 , the non-colored portion disposed between the adjacent tapered spokes 28 and 28 in the circumferential direction extends over the entire radial length with a substantially constant width dimension, As Reference Example 2, with regard to the assimilation of colors, no radial transition can be seen. Therefore, it is difficult to sufficiently express the appearance obtained by the natural assimilation of the color of the tapered spokes 28 and the color of the eyes, and it is impossible to sufficiently achieve the appearance that takes into account the enlarged black eyeballs in the outermost peripheral portion of the cosmetic pattern region 26 The resulting cosmetic effect, and the natural appearance presentation effect by adaptation to the wearer's eyes in the inner peripheral portion of the cosmetic pattern region 26 .

Furthermore, in order to exert an effective assimilation phenomenon, the separation distance of the adjacent tapered spokes 28, 28 must be properly set. In particular, if the separation distance becomes too large, as shown in FIG. 1( c ) or FIG. 5 , the contrast phenomenon prevails over the assimilation phenomenon, and the color of the tapered spokes 28 is conspicuous. It looks unnatural, or the color of the tapered spokes 28 and the color of the sclera (white of the eye) alternately appear concave and convex, thereby causing a third party to feel a sense of incongruity or disgust.

Therefore, the separation distance of the adjacent tapered spokes 28, 28 in the circumferential direction is set within the range of 0.01 to 0.20 mm at the minimum outer peripheral end. Although it also depends on the environmental conditions such as lighting or interpersonal distance that are mainly considered, if, for example, in a general lighting environment with high intensity not used for photography, the normal interpersonal distance (intimate distance of 15~45cm or distance of 45~120cm) is used. Personal space, social distance of 120~360cm, etc.) as the object, it is preferable to set the separation distance between the outer peripheral ends of the tapered spokes 28, 28 within the range of 0.01~0.15mm. When the intimate distance or personal space is more important, it is also preferable to set the separation distance between the outer peripheral ends of the tapered spokes 28 and 28 within the range of 0.01 to 0.10 mm. Furthermore, when the value of the separation distance between the adjacent tapered spokes 28 and 28 in the circumferential direction is difficult to measure by direct visual inspection, for example, it can be calculated by the following method. The universal projector V-12B manufactured by Co., Ltd. is obtained by magnifying the projection to 20 times with the transmitted light while the contact lens is left standing with the rear surface side up, and converted to the actual size.

Furthermore, 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 is related to the difference between the adjacent tapered spokes 28 and 28. The increase and decrease of the width of the non-colored portion 32 are complementary. Therefore, although the spoke width of the tapered spokes 28 also has a slight effect on the presentation, as to the degree of assimilation, in the case where the color of the tapered spokes 28 is assimilated to the color of the eye that can be seen through the non-pigmented portion 32, and In either case where the color of the eye visible through the non-pigmented portion 32 is assimilated to the color of the tapered spokes 28, the width dimension of the non-pigmented portion 32 between the adjacent tapered spokes 28, 28 becomes dominant cause. This situation can also be understood from the following: In the specific example of the cosmetic pattern area illustrated in Figures 6(a) and (b), although the tapered spokes 28 with the same spoke width are used for both, if the non-colored spokes are used When (a) narrowing the width dimension of the part is compared with (b) widening the non-colored part, the degree of assimilation is different.

Of course, from the viewpoint of the balance between the performance of the assimilation phenomenon and the aesthetic appearance, the spoke width of the tapered spokes 28 also has a better range, and the width is preferably set as the maximum outer peripheral spoke width dimension (W) is set to 0.1 Within the range of ~1.0mm, it is more preferable to set it within the range of 0.2~0.6mm. Furthermore, the length dimension of the tapered spokes 28 in the radial direction of the lens is not particularly limited, so that the inner peripheral side does not cover the pupil of the wearer's eye but is located on the cornea 20, and the outer peripheral side is from the wearer's cornea 20. The length extending to the sclera 22 is arbitrarily set. Within this range, generally, the length of the tapered spokes 28 is set within the range of 0.5 to 4.5 mm, more preferably within the range of 1.0 to 3.5 mm. Thereby, the inner peripheral end of the cosmetic pattern region 26 is located on the cornea 20 , and the outer peripheral end is located on the sclera 22 . Furthermore, the tapered spokes 28 can also be formed by a bottom edge (W) located at the outer peripheral end, and two oblique edges extending from both ends of the bottom edge toward the inner peripheral side, and each oblique edge is wider than the bottom edge. Long triangular shape.

Furthermore, the specific shapes of the plurality of tapered spokes 28 constituting the cosmetic pattern region 26 are not limited to all having the same size and size as shown in the first embodiment, as long as the expression of the assimilation phenomenon is not hindered. The shape is composed of an isosceles triangle.

For example, as shown in FIG. 7 , the cosmetic pattern region 26 may be constituted by a plurality of tapered spokes having different shapes or sizes, such as five tapered spokes 28a, 28b, 28c, 28d, and 28e. Furthermore, as illustrated in FIG. 8 , the apex portion of the inner peripheral end may be formed into a straight line extending in the circumferential direction, and the tapered spoke 28 may be substantially trapezoidal as a whole as illustrated in FIG. 9 . The apex portion of the inner peripheral end is rounded into an arc-shaped tapered spoke 28 or the like.

In addition, in the cosmetic pattern area 26 shown in FIG. 7 , from the longest tapered spoke 28a, a total of 5 types of tapered spokes 28b, 28c, 28d, and 28e in turn are repeated in a fixed period in the circumferential direction. configuration. Therefore, regarding any one of the tapered spokes 28a, 28b, 28c, 28d, and 28e, if one focuses on one of them, the one tapered spoke has the same shape and size, and is equally spaced in the circumferential direction arrangement. Specifically, if attention is paid to the shortest tapered spokes 28d, a plurality of the tapered spokes 28d having the same shape and size are arranged at equal intervals in the circumferential direction, between the tapered spokes 28d, 28d in the circumferential direction Four tapered spokes 28e, 28a, 28b, 28c of different sizes are arranged respectively. Furthermore, in FIG. 7, the two tapered spokes 28b, 28e arranged on both sides of the longest tapered spoke 28a in the circumferential direction have substantially the same shape and size, but the two tapered spokes 28b 28e are identified as different types, and it can be understood that any tapered spokes 28a, 28b, 28c, 28d, 28e constituting the cosmetic pattern area 26 of this aspect are arranged at equal intervals in the circumferential direction with the same shape and size, respectively. composition. In other words, in the cosmetic pattern region 26 of FIG. 7, a plurality of tapered spokes 28a, 28b, 28c, 28d, and 28e are arranged in a circumferential direction as a pattern, and the pattern is periodically arranged in the circumferential direction. .

In addition, the tapered spokes 28 may be tapered from the outer peripheral side toward the inner peripheral side, and need not be an isosceles triangle in which all three sides are straight as shown in the first embodiment. For example, the two sides of the tapered spokes 28 extending from the outer peripheral end toward the inner periphery may also have a change in the inclination angle in the longitudinal direction. Specifically, as shown in FIG. The tapered spokes 28 of the shape extending without the front end of the inner peripheral side facing the center of the cosmetic pattern region 26 . Furthermore, by setting the two sides (hypotenuses) facing each other in the circumferential direction of the tapered spokes 28 and 28 as straight lines, the width dimension of the non-colored portion is continuously changed at a constant rate in the radial direction. , which can make the transition of the assimilation phenomenon in the radial direction smoother, but it is not limited to this, and a curve or a broken line can also be used.

Furthermore, the non-colored portion 32 located between the adjacent tapered spokes 28 and 28 is the width dimension in the circumferential direction of the adjacent tapered spokes 28 and 28 being the largest at the inner peripheral end and the smallest at the outer peripheral end. . Moreover, in the intermediate part between these inner peripheral ends 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 toward the inner peripheral side from the outer peripheral side. Furthermore, it is not necessary to continuously change the width dimension of the non-colored portion 32 over the entire intermediate portion. For example, a region in which the width dimension does not change locally may exist in the radial direction of the intermediate portion, and the change ratio of the width dimension in the radial direction of the intermediate portion may be continuously or periodically different.

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

0<Db<Dc<Da

In addition, when the radial lengths of the adjacent tapered spokes 28 and 28 in the circumferential direction are different from each other, as shown in FIG. 11(b), the inner peripheral end of the shorter tapered spoke 28 is The separation distance between DD and A' is set as Da of the above formula.

Furthermore, in one aspect of the present invention, the non-colored portion 32 can be configured as follows, for example, the value of the length dimension in the radial direction of the lens is set to 0.5 to 4.5 mm, and is set to the maximum inner circumference. The value of the difference Da-Db between the width dimension Da of the end and the width dimension Db of the outer peripheral end set as the smallest is set to 0.02 to 3.0 mm. In addition, in one aspect of the present invention, the following configuration can be adopted, that is, with respect to the separation distance Da of the inner peripheral ends and the separation distance Db of the outer peripheral ends of the adjacent tapered spokes 28 and 28 in the circumferential direction of the lens, The width dimension of the inner peripheral end of the tapered spoke 28 is set to a value smaller than Da, and the width dimension (W) of the outer peripheral end is set to a value larger than Db.

Furthermore, the side (W) of the outer peripheral side of the tapered spokes 28 (corresponding to the base of an isosceles triangle) does not need to be a straight line in the shape of a chord in the outer peripheral circle of the cosmetic pattern region 26. For example, as shown in FIG. 12( a ), a curved line such as an arc shape may be used. Furthermore, as shown in FIG. 12( b ), the intersection between the two ends of the outer peripheral side of the tapered spoke 28 and the other two sides (hypotenuses) may be formed into an arc shape and smoothly connected, or As shown in Fig. 12(c), they are connected in a shape obtained by removing the corners in a C-chamfered shape. By adopting the corner shape as in (b) and (c), the separation distance between the tapered spokes 28 and 28 is slightly widened at the outermost peripheral edge, so that the assimilation to the sclera can be used to create a cosmetic pattern. The outer peripheral edge of the area 26 is blurred, which 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 illustrated in FIGS. 13( a ) to ( c ), the cosmetic pattern region 26 is located in the radially middle portion and is denser. The colored area is easy to be seen, and the assimilation of colors at the inner peripheral end and the outer peripheral end is difficult to fully exert as compared with the radially intermediate portion, and as a result, a sense of incongruity is likely to occur in appearance.

In addition, when Da<(Db, Dc) is set contrary to the condition of the above formula, as illustrated in FIGS. 14( a ) and ( b ), the inner peripheral portion of the cosmetic pattern region 26 is located in the radial direction. The densely colored area and the outer peripheral part are easy to be seen, and the assimilation phenomenon of the color in the radial middle part is difficult to fully exert, and as a result, it is easy to produce a sense of incongruity in appearance.

Furthermore, when Db≦0, 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. , while showing the conspicuousness of the outer edge due to the contrast phenomenon, resulting in an artificial appearance like a robot.

The results of the tests carried out by the present inventors to confirm the effects of the present invention as described above are described below. In this test, the cosmetic pattern regions 26 composed of the coloring patterns of Examples 1 to 3 according to the structure of the present invention shown in FIG. 16 and Comparative Examples 1 to 6 shown in FIGS. 17 to 18 , Sensory evaluation of visibility (according to JIS Z 9080: 2004) was performed. Furthermore, since the purpose of this test is to verify the visibility of the details of the colored patterns regardless of preference, in order to facilitate the observation of colored patterns and facilitate the comparison of patterns, the following method was adopted, that is, using colored patterns. The pattern is printed in full size on a sheet for overhead projector (OHP) and the OHP sheet is overlaid on paper with a full size photo of the eye printed in lieu of wearing the eye.

In addition, the test was carried out in a lighting environment suitable for the operation of a computer monitor, and it was noted that the lighting of the lighting device in the test environment would not reflect the coloring pattern of the observation object. The distance between the test performer and the coloring pattern of the observation object was set to approximately 50 cm. The test performers were set to 7 persons who had sufficient knowledge and experience in cosmetic contact lenses.

[Experiment 1]

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

Test method: For the coloring pattern of each test object, it was evaluated whether the incongruity of the concavities and convexities of the outermost peripheral part could be seen in appearance. The evaluation results indicated that there were 4 choices of "looks uneven", "looks slightly uneven", "does not look uneven", and "does not look uneven".

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

[Experiment 2]

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

Test method: With respect to the coloring patterns of Examples 1 to 3 and Comparative Examples 1 to 2, it was evaluated that compared with Comparative Example 3, the outermost peripheral portion of which was darker and clearly visible. The evaluation result indicates that one of the two answers is available.

Test results: For all the test subjects, all seven test subjects answered that "Comparative Example 3 is darker in color than the test subjects and can be seen clearly".

[Experiment 3]

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

Test method: For the coloring pattern of each test object, evaluate whether the "threads" (conical spokes) constituting the coloring pattern appear to be scattered and independent "threads", or adhere to the adjacent "threads" and look like one. The evaluation results indicated that there were responses using 4 options of "Looks loose", "Looks slightly disorganized", "Looks slightly sticky", and "Looks sticky".

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

[Summary of test results]

According to the result of Test 1, when Db (distance between BB') exceeds 0.2 mm, it was confirmed that the outermost periphery of the colored pattern looked uneven.

From the results of Test 1 and Test 2, it can be confirmed that even in Example 1 in which all the test subjects answered "does not look uneven", when compared with Comparative Example 3 in which Db was 0 mm, all the test subjects answered: "Comparative example 3 is darker and clearly visible", and there is a difference in clarity due to the gap in Db.

In Test 3, the tapered spokes of Examples 1 to 3 and Comparative Examples 1 to 2 have the same shape and the Db is changed. By comparing them, it can be confirmed that if the Db exceeds 0.2 mm, the shape of the spoke can be clearly defined. It is visually recognized, and it can be confirmed that the phenomenon of assimilation is almost non-existent.

Any one of Comparative Examples 4 to 6 is a coloring pattern in which the separation distance between the spokes of adjacent colored parts does not satisfy the above-mentioned conditional expression "0<Db<Dc<Da", since Comparative Examples 4 and 5 are compared with The Db of Examples 1 and 2 was the same level, so it was evaluated as "concave and convex" by analogy in Test 1. Regarding 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 should not be construed to be limited by these specific descriptions.

For example, the specific color of the tapered spokes 28 is not limited by lightness, hue, chroma, density, and the like. That is, not only the natural corneal color or sclera color of the human eye varies depending on race or individual differences, but also the color desired for cosmetic contact lenses varies depending on the application, individual differences, etc., therefore, according to such various conditions or requirements , the color of the tapered spokes 28 can be appropriately set. Furthermore, since the assimilation of colors tends to be more likely to occur with colors that are similar to each other, it is also possible, for example, to consider race, and prepare tapered spokes of multiple colors and provide them to the market.

In addition, the optical portion 14, the non-colored portion 32, the outer peripheral transparent region 30, etc. in the cosmetic contact lens of the present invention may be colorless, transparent or colored and transparent. For example, the optical portion 14 may be set in a transparent color considering the transmittance of visible light and the like. , the non-colored portion 32 can be set as a transparent color in consideration of the color of the iris or the cosmetic effect on the appearance. Of course, in the cosmetic pattern area 26, the tapered spokes 28 are set to be different in light transmittance or color density so as to be recognizable as a colored area and assimilate with respect to the non-colored portion 32.

Furthermore, the method of disposing the tapered spokes 28 on the contact lens in a colored state is not limited in the present invention. If it is exemplified for reference, as described in Japanese Patent Laid-Open No. 3-54519, etc., coloring may be performed when a contact lens molding single body is cast-molded to form a contact lens, or it may be hand-painted or photo-printed, In screen printing, etc., pad printing or inkjet printing can also be used when considering the spherical shape of the adhesion surface, mass productivity, coloring accuracy, color reproducibility, and the like.

In addition, the tapered spokes 28 may have a dark color from the inner peripheral side toward the outer peripheral side, for example, to change the color, but the entire color (brightness, color, chroma, and density) may be substantially fixed. In addition, different colors can be set for the plurality of tapered spokes, but by using the tapered spokes of the same color, the appearance of a uniform color as a whole can be presented in the cosmetic pattern area. Furthermore, in the case where the tapered spokes are colored into dots with light-transmitting or opaque coloring materials, etc., there may be areas where no dots are attached. For the assimilation of the color produced by the non-pigmented portion, the tapered spoke is preferably a colored area in a substantially uniform fully coated state where the entire surface is set to be translucent or opaque.

Furthermore, the tapered spokes constituting the cosmetic pattern area are usually arranged in a circular shape with the optical portion or the geometric center of the lens as the center, but this is not necessarily limited when the cornea is deviated from the geometric center in the wearing state, for example, with a decentered lens. explain the location of the center.

Moreover, although the cosmetic contact lens of the present invention has a colored portion (colored band portion) composed of tapered spokes, other colorings may be used together as long as the effect of utilizing the assimilation of colors is not hindered. structure. For example, as exemplified in FIG. 19 , an indication 36 such as a guide mark for indicating the wearing direction visible in a contact lens for astigmatism or the like can be used together with the tapered spokes 28 .

In addition, in the above-described embodiment, some specific examples of the tapered spokes that can be used in the present invention are listed, but these are only examples and are not intended to serve as a basis for limited interpretation. In addition, in FIG. 7 , the embodiment 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 or Various tapered spokes different from each other such as the outer peripheral end and the radially intermediate portion constitute the cosmetic pattern area. More specifically, for example, tapered spokes with different widths in the circumferential direction, non-colored portions with different widths or shapes in the circumferential direction, inner or outer circumferential ends, and radially intermediate portions may also have different shapes. The tapered spokes of different color or transparency are appropriately combined to form the cosmetic area.

Others, although not listed one by one, the present invention can be implemented in various modifications, corrections, improvements, etc. based on the knowledge of those skilled in the art to which the present invention pertains. As long as it does not deviate from the purpose of the present invention, any one of them is included in the scope of the present invention.

10‧‧‧Cosmetic Contact Lenses

12‧‧‧Geometry Center

14‧‧‧Optics Department

16‧‧‧Peripheral Department

18‧‧‧Edge

20‧‧‧Black eyeball (cornea)

22‧‧‧White (sclera)

24‧‧‧ Corneal limbus (outer limbus, junction line)

26‧‧‧Patterned area for beauty

28‧‧‧Tapered spokes

30‧‧‧Peripheral transparent area

32‧‧‧Non-colored parts

DIA, φ A, φ B, φ D‧‧‧Outer diameter

φ C‧‧‧Inner diameter

Claims (10)

A cosmetic contact lens, characterized in that a tapered spoke formed of a colored portion of a tapered shape whose width dimension decreases from the outer peripheral side of the lens toward the inner peripheral side is placed on a peripheral portion located on the outer peripheral side of the optical portion. A plurality of lenses are arranged in the circumferential direction, whereby an annular cosmetic pattern area is provided as a whole. The outer diameter of the cosmetic pattern area is set to 11.0~14.0mm, and the cosmetic pattern area covers the cornea where the eye is worn. The inner peripheral side and the outer peripheral side of the outer edge portion, the inner peripheral end of the cosmetic pattern area is located on the cornea and the outer peripheral end is located on the sclera, on the other hand, the adjacent tapered spokes in the circumferential direction of the lens are separated from each other, and A non-pigmented portion extending over the entire length of the radial direction is provided between each other, and the separation distance between the outer peripheral ends of the adjacent tapered spokes in the circumferential direction of the lens is set to be 0.01~0.20mm, and the non-pigmented spokes are set to 0.01~0.20mm. Part of the width dimension increases from the outer peripheral side of the lens toward the inner peripheral side. The cosmetic contact lens according to claim 1, wherein in the tapered spokes, the width of the spokes whose width is the largest at the outer peripheral end is 0.1 to 1.0 mm. The cosmetic contact lens according to claim 1 or 2, wherein among the above-mentioned tapered spokes adjacent in the circumferential direction of the lens, 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 middle part Has the relationship of 0<Db<Dc<Da. The cosmetic contact lens according to claim 1 or 2, wherein relative to the separation distance Da between the inner peripheral ends and the separation distance Db between the outer peripheral ends of the adjacent tapered spokes in the circumferential direction of the lens, the tapered spokes The width dimension of the inner peripheral end is set to be smaller than the value of Da, and the width dimension of the outer peripheral end is set to be larger than the value of Db. The cosmetic contact lens according to claim 1 or 2, wherein the tapered spokes are formed by a bottom edge located at the outer peripheral end and two oblique edges extending from both ends of the bottom edge toward the inner peripheral side, respectively. A triangular shape is formed and each of the hypotenuses is longer than the base. The cosmetic contact lens according to claim 1 or 2, wherein the tapered spokes are colored portions having constant lightness, hue, chroma, and density throughout the entirety. The cosmetic contact lens according to claim 1 or 2, wherein the above-mentioned tapered spokes are the same fully-coated colored portion throughout. The cosmetic contact lens according to claim 1 or 2, wherein a plurality of the above-mentioned tapered spokes are arranged concentrically with respect to the geometric center of the above-mentioned optical portion or the above-mentioned lens. The cosmetic contact lens according to claim 1 or 2, wherein the width dimension in the circumferential direction of the lens in the non-pigmented portion is continuous and gradually from the outer peripheral side of the lens toward the inner peripheral side of the lens throughout the entire radial length of the non-pigmented portion The way to get bigger changes. The cosmetic contact lens according to claim 1 or 2, wherein in the non-colored portion, the value of the length dimension in the radial direction of the lens is set to 0.5 to 4.5 mm, and is set to the width dimension of the largest inner peripheral end The value of Da-Db, which is the difference between Da and the width dimension Db of the smallest outer peripheral end, is set to 0.02 to 3.0 mm.

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