• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method of forming a contact lens comprising colored rings covering all or part of the eye edge when fitting the contact lens. The method for forming the contact lens comprises applying a colorant in the form of an edge ring to the surface of the one-side contact lens mold, filling the one-sided contact lens mold with a polymer material, and casting the polymer to form a molded surface including the edge ring shape. And the opposite side is machined to produce the finished side opposite the molded side.
    公开号:KR20000062251A
    申请号:KR1019997005591
    申请日:1997-12-17
    公开日:2000-10-25
    发明作者:로렌스 차포이엘.；리차드엘. 잔크
    申请人:스타이너 토마스 에프.；웨슬리 제슨 코오포레이션；
    IPC主号:
    专利说明:

    METHOD OF FORMING COLORED CONTACT LENS HAVING VERY NATURAL APPEARANCE AND PRODUCT MADE THEREBY}
    The marginal area is the part of the eye located between the iris and the sclera. This edge region is darker in color than the iris, especially in brightly colored eyes, and when the person grows old and sick, the edge region begins to brighten and blur. The darker the edges, the better the appearance. Contact lenses with edge rings increase contrast and make the boundary clearer at the iris and sclera connection. Edge rings have a constant or variable thickness and consist of solid colorants or intermittent coloring components. Examples of edge rings used in contact lenses are U.S. Patent No. 5,414,477 to Jahnke and U.S. Patents 5,160,463 and 5,302,978 to Evans.
    The present invention relates to a method of forming a color contact lens that has a opaque colored portion that is very natural and provides a cosmetic effect to the wearer's eyes. The present invention relates to a method of forming a lens comprising a colored ring covering the entire edge or part of the eye when wearing a contact, in order to further improve the appearance of the contact lens wearer.
    1 is a view showing a one-side mold to which a colorant is applied according to the present invention;
    2 shows a one side mold used with an unfinished cast surface in accordance with the present invention;
    3 shows a one side mold comprising a polymeric material after the side taken out of the mold has been processed; And
    4 is a side view and an image side view of a contact lens formed in accordance with the present invention.
    In the present invention, the process of forming the contact lens including the colored ring around the edge region is accomplished by printing a colorant to the surface of the one-side contact lens mold. This colorant is applied to cover the entire edge or part of the eye when the finished contact lens is fitted into the eye. The mold is then filled with monomers or other polymerizable polymer materials. Colorants that swell in monomers are applied to the processed contact lenses.
    The contact lens mold used in the present invention has only one machined side, which will form the outer side of the finished lens. This outer surface will be the front of the base or contact lens, depending on the type of contact lens mold used. The face opposite to the finished face of the molded face is formed by machining or lading the unfinished casting.
    The method of forming a contact lens according to the present invention and the contact lens produced by the method are described and described with reference to Figs.
    1 shows a one-sided contact lens mold 10 used when fabricating a contact lens. Although the half of the mold shown in FIG. 1 is used to form the bottom surface of the contact lens (contact lens surface in contact with the wearer's eye), it is used to form the front surface of the contact lens (contact lens surface not in contact with the wearer's eye). Half of the one-sided contact lens mold may be used to fabricate the contact lens according to the present invention.
    In order to form a contact lens comprising an edge ring shape, the colorant 12 is printed on the surface 14 of the one-sided contact lens mold 10. When placing the finished contact lens in the eye, the colorant 12 will be applied so that the colorant 12 covers all or part of the edge region of the eye, ie the area between the iris and the sclera. Details of the placement of the colorants and the edge areas required to cover the edge areas can be found in Jahnke, U. S. Patent Nos. 5,414, 477 and Evans, U. S. Patent Nos. This pattern may consist of a solid colorant, a concentric colorant and a dashed colorant whose shape and size are constant or varied. Depending on the type of contact lens mold used, the colorant will be applied to the bottom or front of the contact lens.
    Various types of colorants may be selected and used to color contact lenses, including pigments, vat dyes, reactive dyes, water soluble dyes according to the prior art, and the like. It is known to those skilled in the art to apply the aforementioned coloring agents differently to the mold.
    A preferred method of printing a colorant on the surface of a single side contact lens mold is to suspend the pigment mixture in a polymer dissolved in a solvent. This mixture is applied to the surface of the mold by transfer pad printing. As shown in FIG. 1, this mixture is applied to the surface 14 of the one-sided contact lens mold 10 in a limbal pattern. Methods of printing colorants on contact lenses are described in US Pat. No. 4,582,402 to Knapp; 4,704,017 and 4,720,188 and Rawlings et al. US Pat. Nos. 5,034,166; 5,116,112; And 5,120,121 are described.
    As shown in FIG. 2, once the colorant 12 is printed on the surface of the one-side contact lens mold 10, a polymerizable material 16, such as a monomer, is placed in the mold on top of the limbal ring. The colorant swells in the monomer. This monomer 16 is cast or polymerized, as will be understood by those skilled in the art, to form a molded surface 14 on one side of the contact lens (in this example, the underside of the contact lens is a mold processing surface to be). By this polymerization process, the unfinished casting surface 18 is placed on the surface of the polymer material opposite to the mold processing surface.
    After polymerizing the monomer material 16, the one-sided contact lens mold 10 including the polymer material is mounted on a shelf (not shown), and the polymerized material is processed so that the polymer material is mold processed as shown in FIG. It is to have a machining surface 20 on the surface opposite the surface. 4 shows the contact lens 22 after detaching from the one-side contact lens mold 10. The contact lens 22 includes an edge ring pattern 24, one side 20 of the contact lens 22 is machined, and the other side 26 of the contact lens 22 is mold processed. do.
    Another embodiment of the aforementioned printing method includes applying a monomer or a polymeric material to the surface of a single-faced contact lens mold. Thereafter, as described above, the colorant is applied to the polymeric material in an edge ring pattern. The mixture of the initial polymeric material and the colorant can be cast after applying the polymeric material, after the colorant is applied, and after each material is applied, and no casting process is necessary for this bonding. After the coloring material is printed on the one side contact lens mold, the contact lens can be processed as described above.
    Another embodiment of the present invention uses a one-side mold that forms a mold processing surface in the front instead of the mold shown in the drawings. In another example, the edge ring colorant is applied to the molded processing surface; However, contrary to what is shown in the preferred embodiment, the molded face lies in front while the machined or laid surface is placed on the base.
    The foregoing description and drawings of the invention are by way of example and the invention is not limited by the foregoing description and drawings, which are defined in the claims. According to the invention, various changes can be made from the detailed description.
    权利要求:
    Claims (16)
    [1" claim-type="Currently amended] In a method of making a contact lens having a color ring that covers most of the entire edge area of the eye when the contact lens is worn:
    Printing the colorant material on the one-side contact lens mold surface in an edge ring pattern;
    Filling the one side contact lens mold with the polymerizable material such that the polymerizable material contacts the colorant and the one side contact lens mold;
    Casting a polymerizable material to form a mold-processed surface of the contact lens including an edge ring pattern covering most of the entire edge of the eye when the contact lens is worn, and an unfinished surface on a surface opposite the mold-processed surface; And
    A method of making a contact lens consisting of machining a face opposite to a mold face in order to form a face on the contact lens.
    [2" claim-type="Currently amended] The process of claim 1, wherein the coloring agent is printed on the surface of the one-sided contact lens mold in an edge ring pattern:
    Method of making a contact lens comprising the step of applying a coloring material to the surface of the one-side contact lens mold.
    [3" claim-type="Currently amended] The process of claim 1, wherein the colorant is printed on the surface of the one-side contact lens mold in an edge ring pattern:
    Applying an initial polymerizable material to the surface of the one-side contact lens mold;
    A method of making a contact lens, comprising the step of applying a colorant to an initial polymerizable material.
    [4" claim-type="Currently amended] 4. The method of claim 3 comprising casting a mixture of initial polymerizable material and colorant.
    [5" claim-type="Currently amended] 4. A method according to claim 3, comprising casting an initial polymerizable material prior to applying the colorant.
    [6" claim-type="Currently amended] 6. The method of claim 5 comprising casting a mixture of initial polymerizable material and colorant.
    [7" claim-type="Currently amended] The process of claim 1, wherein the coloring agent is printed on the surface of the one-side contact lens mold in an edge ring pattern:
    Suspending the polymer pigment mixture dissolved in the solvent; And
    A method of making a contact lens, comprising applying a mixture to the surface of a one-side contact lens mold by transition pad printing.
    [8" claim-type="Currently amended] The method of claim 1 wherein the colorant is selected from pigments, vat dyes, reactive dyes and water soluble dyes according to the prior art.
    [9" claim-type="Currently amended] 2. The method of claim 1, wherein machining the machined surface comprises lathing the machined surface.
    [10" claim-type="Currently amended] The method of claim 1, wherein the one-sided contact lens mold is a mold surface that forms the bottom surface of the contact lens.
    [11" claim-type="Currently amended] The method of claim 1, wherein the one-sided contact lens mold is a mold surface that forms the front side of the contact lens.
    [12" claim-type="Currently amended] 2. The method of claim 1, wherein the edge ring pattern comprises a solid colorant on the contact lens face that covers the entire edge area or portion of the eye.
    [13" claim-type="Currently amended] 2. The method of claim 1, wherein the edge ring pattern comprises a group of concentric colorants on the contact lens surface that covers the entire edge region or portion of the eye.
    [14" claim-type="Currently amended] 2. The method of claim 1, wherein the edge ring pattern comprises a colorant applied in the form of a dot to the area of the contact lens covering the entire edge area or portion of the eye.
    [15" claim-type="Currently amended] 15. The method of claim 14, wherein the colorant in the form of a dot comprises point shapes such as round, square, hexagonal or rectangular.
    [16" claim-type="Currently amended] By the method according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15. Made contact lens.
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    同族专利:
    公开号 | 公开日
    TW353724B|1999-03-01|
    CA2274848A1|1998-07-02|
    AU5608898A|1998-07-17|
    AU728584B2|2001-01-11|
    EP0953163A2|1999-11-03|
    WO1998028652A3|1998-08-13|
    EP0953163A4|2000-01-05|
    AR008544A1|2000-01-19|
    WO1998028652A2|1998-07-02|
    CO4920196A1|2000-05-29|
    BR9713600A|2000-06-13|
    ID22544A|1999-11-04|
    JP2001507473A|2001-06-05|
    US20020060777A1|2002-05-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-20|Priority to US08/770,251
    1996-12-20|Priority to US8/770,251
    1997-12-17|Application filed by 스타이너 토마스 에프., 웨슬리 제슨 코오포레이션
    2000-10-25|Publication of KR20000062251A
    优先权:
    申请号 | 申请日 | 专利标题
    US08/770,251|US20020060777A1|1989-11-01|1996-12-20|Method of forming colored contact lens having very natural appearance and product made thereby|
    US8/770,251|1996-12-20|
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