WO2021210824A1 - Penetration hole processing method, and contact lens processed using same - Google Patents

Penetration hole processing method, and contact lens processed using same Download PDF

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Publication number
WO2021210824A1
WO2021210824A1 PCT/KR2021/004184 KR2021004184W WO2021210824A1 WO 2021210824 A1 WO2021210824 A1 WO 2021210824A1 KR 2021004184 W KR2021004184 W KR 2021004184W WO 2021210824 A1 WO2021210824 A1 WO 2021210824A1
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Prior art keywords
mold
contact lens
monomer
processing method
laser
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PCT/KR2021/004184
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French (fr)
Korean (ko)
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김지태
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김지태
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00076—Production of contact lenses enabling passage of fluids, e.g. oxygen, tears, between the area under the lens and the lens exterior
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F20/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/047—Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses

Definitions

  • the proposed technology relates to a perforated ball processing method and a contact lens processed using the same, and more particularly, a method for processing a perforated ball formed in a soft contact lens for tear circulation, and a contact lens processed using the same am.
  • contact lenses are lenses that correct refractive errors in the eyes such as nearsightedness and farsightedness. These contact lenses are good for vision correction in patients with severe or irregular corneal astigmatism, and have a long lifespan. In addition, it is easy to wash, and it is easy to wear and separate, and in particular, compared to glasses, it is possible to maintain a natural impression of a person, so it is in the spotlight from many people.
  • contact lenses are also being developed for various purposes, such as therapeutic contact lenses that prevent the corneal recovery from being inhibited by the interference of external factors by blocking the damaged cornea from the outside.
  • contact lenses have many inconveniences and problems behind some convenient points because they are worn in the form of being directly attached to the eyeball.
  • the cornea of the eye receives oxygen from the air and nutrients from tears.
  • a perforation ball is processed in the contact lens.
  • the punching sphere is processed by irradiating a laser to the contact lens, and in the prior art, the punching sphere was processed by irradiating the laser directly to the contact lens.
  • the present invention was invented to solve the above problems, and it provides a drilling tool processing method that can prevent damage and viseme caused by lacerations occurring around the drilling tool during drilling tool processing using a conventional laser. There is a purpose.
  • Completing the manufacturing of the contact lens characterized in that it includes.
  • the first mold and the second mold are formed by a cast mold casting method.
  • the monomer is characterized in that it is HEMA (2-Hydroxyethylmethacrylate).
  • the temperature applied to the monomer in the step of the polymerization reaction of the monomer is characterized in that a certain temperature or more.
  • the monomer In the step in which the monomer is polymerized, the monomer is characterized in that it is solidified.
  • the first mold and the second mold have higher strength than the polymerization-reacted monomer.
  • the monomer solidified in the step of polymerization reaction is characterized in that the first mold and the second mold are fixed by compression.
  • the laser sequentially penetrates the first mold, the monomer and the second mold.
  • the laser is irradiated perpendicular to the convex portion.
  • 1 is a first mold and a second mold preparation step according to the present invention.
  • FIG. 2 is a perspective view illustrating a mold core for manufacturing a first mold according to the present invention.
  • 3 is a monomer injection step according to the present invention.
  • Figure 6 is a cross-sectional view of a drilling tool processed in the contact lens according to the present invention.
  • FIG. 7 is a cross-sectional view of a drilling tool processed in a conventional contact lens.
  • the present invention relates to a method of processing a punching ball and a contact lens processed using the same, and more particularly, to a method of processing a punching ball formed in a soft contact lens for tear circulation and a contact lens processed using the same am.
  • FIG. 1 shows a first mold and a second mold preparation step according to the present invention.
  • the first mold 2 and the second mold 6 are It is formed by a cast mold casting method, and is formed of a plastic material.
  • FIG. 2 is a perspective view illustrating a mold core for manufacturing the first mold according to the present invention.
  • the mold core 10 for manufacturing the first mold 8 will be described in detail with reference to FIG. 2 as follows.
  • the mold core 10 may be formed to have a predetermined diameter and height, and a space for manufacturing the first mold 8 may be formed therein.
  • a curve 11 inclined downwardly inward may be formed on the upper surface, and an inner groove 20 may be formed in a circular band shape on the surface of the curve 11 .
  • the inner groove 20 may be formed using a diamond turning cutting machine (DTM) or the like, and the sharp edge portion on which the inner groove 20 is formed may be gently rounded.
  • DTM diamond turning cutting machine
  • a plurality of discharge grooves 30 spaced apart from each other may be formed in the inner groove 20 .
  • the discharge groove 30 can be formed in the inner groove 20 by using an ultra-precision drilling machine, and the first mold 8 manufactured by the mold core 10 by the discharge groove 30 protrusions may be formed. Accordingly, in the case of the contact lens manufactured by the first mold 8, a perforation is formed so that the discharge and inflow of tears can be made.
  • the shape of the aforementioned mold core 10 is not limited to the illustrated bar, and the configuration of the discharge groove 30 may be selectively provided. That is, since the perforation hole 16 is formed in the contact lens by irradiation of the laser 14 to be described later, the configuration of the discharge groove 30 may be omitted, and before the formation of the perforation hole 16 using the laser 14 . It is possible to guide the irradiation position of the laser 14 by forming a perforation in the contact lens in advance.
  • the monomer 10 which is a raw material for the contact lens, is placed in the concave portion 4 of the first mold 2 in a liquid state. is injected
  • the monomer 10 may be HEMA (2-Hydroxyethylmethacrylate), and the type of the monomer 10 may vary according to the intention of the manufacturer.
  • the monomer 10 When the monomer 10 is injected into the concave portion 4 of the first mold 2 , the monomer 10 is injected by a predetermined amount.
  • the second mold 8 is partially inserted into the concave portion 4 of the first mold 2 .
  • the second mold 8 When the first mold 2 and the second mold 8 are fully coupled to each other, the second mold 8 does not come into contact with the concave portion 4 of the first mold 2, and A space between the concave portion 4 of the first mold 2 and the second mold 8 becomes a space into which the monomer 10 is injected.
  • the space between the concave portion 4 of the first mold 2 and the second mold 8 becomes a space in which the contact lens is formed, so that it has a cross section of the same shape as the cross section of the contact lens. is formed
  • a high temperature of at least a certain temperature is applied to the monomer 10, whereby the monomer 10 is solidified.
  • the first mold 2 and the second mold 8 have higher strength than the polymerization-reacted monomer 10 .
  • the monomer 10 solidified by a polymerization reaction that is, prepared in the form of a contact lens 10 is in a compression-fixed state by the first mold 2 and the second mold 8, that is, the first There is no empty space between the first mold 2 and the contact lens 10 and between the second mold 8 and the contact lens 10 .
  • the convex portion 6 of the first mold 2 is positioned to face forward.
  • the step of irradiating the laser 14 toward the convex portion of the first mold 2 is performed.
  • the laser 14 passes through the first mold 2 , the monomer 10 , that is, the contact lens and the second mold 8 in sequence. At this time, the laser 14 is irradiated perpendicular to the convex portion (6).
  • a perforation hole 16 is formed in the contact lens 10 by the laser 14 .
  • the perforations 16 are spaced apart from each other at a predetermined angle in the radial direction of the contact lens 10 to form a plurality
  • the shape and number of the punching spheres 16 and the spacing angle and distance between the plurality of the punching spheres 16 may vary according to the intention of the manufacturer.
  • FIG. 6 is a cross-sectional view of a drilling tool processed in a contact lens according to the present invention.
  • the contact lens 10 When the hole 16 is formed by the laser 14 , the contact lens 10 is compressed and fixed to the first mold 2 and the second mold 8 , so the contact lens 10 is ) by the laser 14 applied to the thermal reaction is suppressed.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Eyeglasses (AREA)

Abstract

The presented technology relates to a penetration hole processing method, and a contact lens processed using same, and, more specifically, the invention relates to: a method for processing penetration holes, formed on a soft contact lens, for tear circulation; and a contact lens processed using same.

Description

천공구 가공 방법 및 이를 이용하여 가공된 콘택트렌즈Drilling tool processing method and contact lenses processed using the same
제안기술은 천공구 가공 방법 및 이를 이용하여 가공된 콘택트렌즈에 관한 것으로, 더욱 상세하게는 눈물 순환을 위하여 소프트 콘택트렌즈에 형성되는 천공구를 가공하는 방법 및 이를 이용하여 가공된 콘택트렌즈에 관한 발명이다.The proposed technology relates to a perforated ball processing method and a contact lens processed using the same, and more particularly, a method for processing a perforated ball formed in a soft contact lens for tear circulation, and a contact lens processed using the same am.
일반적으로 콘택트렌즈는 안경과 마찬가지로 근시와 원시 같은 눈의 굴절이상을 교정하는 렌즈이다. 이러한 콘택트렌즈는 난시 증세가 심하거나 불규칙한 각막환자의 시력교정에 좋고, 수명이 길다. 또한 세척이 용이할 뿐만 아니라, 착용과 분리가 좋고 특히 안경에 비해 사람의 인상착의를 자연스럽게 유지할 수 있어 많은 사람들로부터 각광받고 있다.In general, contact lenses, like glasses, are lenses that correct refractive errors in the eyes such as nearsightedness and farsightedness. These contact lenses are good for vision correction in patients with severe or irregular corneal astigmatism, and have a long lifespan. In addition, it is easy to wash, and it is easy to wear and separate, and in particular, compared to glasses, it is possible to maintain a natural impression of a person, so it is in the spotlight from many people.
또한 손상된 각막이 외부로부터 차단되도록 함으로써 각막의 회복작용이 외부적인 요인의 간섭에 의해 저해되는 것을 방지하는 치료용 콘택트렌즈가 나오는 등, 콘택트렌즈도 다양한 목적으로 발전하고 있다.In addition, contact lenses are also being developed for various purposes, such as therapeutic contact lenses that prevent the corneal recovery from being inhibited by the interference of external factors by blocking the damaged cornea from the outside.
하지만 콘택트렌즈는 안경과 달리, 안구에 직접 부착하는 형태로 착용되기 때문에 몇몇 편리한 점 이면에 많은 불편함 점과 문제점을 안고 있다.However, unlike glasses, contact lenses have many inconveniences and problems behind some convenient points because they are worn in the form of being directly attached to the eyeball.
대표적으로 안구의 각막은 공기 중으로부터는 산소를, 눈물로부터는 영양공급을 받게 되는데 콘택트렌즈를 착용하면 외부와 차단되어 산소 부족 현상이 발생하게 된다. Typically, the cornea of the eye receives oxygen from the air and nutrients from tears.
이와 같은 문제를 해결하고자 콘택트렌즈에 천공구를 가공하게 된다.To solve this problem, a perforation ball is processed in the contact lens.
일반적으로 천공구는 콘택트렌즈에 레이저를 조사하여 가공되는 것으로, 종래에는 콘택트렌즈에 레이저를 직접 조사하여 천공구를 가공하였다.In general, the punching sphere is processed by irradiating a laser to the contact lens, and in the prior art, the punching sphere was processed by irradiating the laser directly to the contact lens.
그러나 이러한 방법은 레이저 조사 시 도 6에 도시된 바와 같이, 콘택트렌즈에 열상이 발생하게 되고, 천공구 주변에 발생되는 열상에 의한 파손 및 비짐이(burr) 현상은 안구에 콘택트렌즈 착용 시 각종 염증 및 이물감을 발생시켜 실제 착용이 어려운 문제가 있었다.However, in this method, as shown in FIG. 6 , when the laser is irradiated, a laceration occurs in the contact lens, and damage and burr caused by the laceration occurring around the perforation sphere are various inflammations when wearing the contact lens in the eye. And there was a problem that it was difficult to actually wear it by generating a feeling of foreign body.
본 발명은 상기와 같은 문제를 해결하기 위해 발명된 것으로서, 종래의 레이저를 이용한 천공구 가공 시 천공구 주변에 발생되던 열상에 의한 파손 및 비짐이 현상을 방지할 수 있는 천공구 가공 방법을 제공하는데 목적이 있다.The present invention was invented to solve the above problems, and it provides a drilling tool processing method that can prevent damage and viseme caused by lacerations occurring around the drilling tool during drilling tool processing using a conventional laser. There is a purpose.
상기와 같은 목적을 달성하기 위한 본 발명의 천공구 가공 방법에 있어서,In the punching tool processing method of the present invention for achieving the above object,
콘택트렌즈의 전방 표면을 형성하는 제1몰드 및 콘택트렌즈의 후방 표면을 형성하는 제2몰드 준비 단계;preparing a first mold forming a front surface of the contact lens and a second mold forming a rear surface of the contact lens;
제1몰드의 오목부에 콘택트렌즈의 원료인 단량체가 액상 주입되는 단계;A liquid-phase injection step of a monomer, which is a raw material for a contact lens, into the concave portion of the first mold;
제1몰드와 제2몰드가 서로 포개지도록 제1몰드에 제2몰드가 결합되는 단계;coupling a second mold to the first mold so that the first mold and the second mold are superimposed on each other;
단량체가 중합 반응되는 단계;a step in which the monomer is polymerized;
서로 결합 된 제1몰드와 제2몰드가 지그(jig)에 고정되는 단계;fixing the first mold and the second mold coupled to each other to a jig;
제1몰드의 볼록부를 향해 레이저가 조사되는 단계;irradiating a laser toward the convex portion of the first mold;
레이저에 의해 콘택트렌즈에 천공구가 형성되는 단계;Forming a perforation hole in the contact lens by a laser;
제1몰드와 제2몰드가 분리되는 단계;separating the first mold and the second mold;
콘택트렌즈의 제조가 완료되는 단계;를 포함하는 것을 특징으로 한다.Completing the manufacturing of the contact lens; characterized in that it includes.
콘택트렌즈의 전방 표면을 형성하는 제1몰드 및 콘택트렌즈의 후방 표면을 형성하는 제2몰드 준비 단계에서,In the preparation step of a first mold forming the front surface of the contact lens and a second mold forming the rear surface of the contact lens,
제1몰드와 제2몰드는 캐스트 몰드(cast mold) 주조 공법으로 형성되는 것을 특징으로 한다.The first mold and the second mold are formed by a cast mold casting method.
제1몰드의 오목부에 콘택트렌즈의 원료인 단량체가 액상 주입되는 단계에서,In the step of injecting a liquid monomer, which is a raw material for a contact lens, into the concave part of the first mold,
단량체는 HEMA(2-Hydroxyethylmethacrylate)인 것을 특징으로 한다.The monomer is characterized in that it is HEMA (2-Hydroxyethylmethacrylate).
단량체가 중합 반응되는 단계에서 단량체에 가해지는 온도는 일정 온도 이상인 것을 특징으로 한다.The temperature applied to the monomer in the step of the polymerization reaction of the monomer is characterized in that a certain temperature or more.
단량체가 중합 반응되는 단계에서 단량체는 고체화되는 것을 특징으로 한다.In the step in which the monomer is polymerized, the monomer is characterized in that it is solidified.
단량체가 중합 반응되는 단계에서,In the step of polymerization reaction of the monomer,
제1몰드 및 제2몰드는 중합 반응된 단량체보다 높은 강도를 갖는 것을 특징으로 한다.The first mold and the second mold have higher strength than the polymerization-reacted monomer.
단량체가 중합 반응되는 단계에서 고체화된 단량체는 제1몰드와 제2몰드에 압축 고정되는 것을 특징으로 한다.The monomer solidified in the step of polymerization reaction is characterized in that the first mold and the second mold are fixed by compression.
제1몰드의 볼록부를 향해 레이저가 조사되는 단계에서,In the step of irradiating a laser toward the convex portion of the first mold,
레이저는 제1몰드, 단량체 및 제2몰드를 차례로 관통하는 것을 특징으로 한다.The laser sequentially penetrates the first mold, the monomer and the second mold.
제1몰드의 볼록부를 향해 레이저가 조사되는 단계에서,In the step of irradiating a laser toward the convex portion of the first mold,
레이저는 볼록부에 대해 수직으로 조사되는 것을 특징으로 한다.The laser is irradiated perpendicular to the convex portion.
레이저에 의해 콘택트렌즈에 천공구가 형성되는 단계에서,In the step of forming a hole in the contact lens by the laser,
천공구는 콘택트렌즈의 반경방향으로 서로 일정 각도 이격되어 복수 개 형성되는 것을 특징으로 한다.It is characterized in that a plurality of perforations are spaced apart from each other at a predetermined angle in the radial direction of the contact lens.
본 발명에 따르면, 레이저를 이용한 천공구 가공 시 종래에 발생되던 천공구 주변 파손 및 비짐이 현상을 방지할 수 있는 효과가 있다.According to the present invention, there is an effect that can prevent damage and viseme around the punching hole that occurred in the prior art during the processing of the drilling tool using a laser.
따라서, 콘택트렌즈 착용 시 천공구 주변 파손 및 비짐이 현상에 의한 각종 염증 및 이물감 발생 문제를 해결할 수 있는 효과가 있다.Therefore, there is an effect that can solve the problem of various inflammation and foreign body sensation caused by damage around the perforation hole and viseme when wearing contact lenses.
도 1은 본 발명에 따른 제1몰드와 제2몰드 준비 단계.1 is a first mold and a second mold preparation step according to the present invention.
도 2는 본 발명에 따른 제1몰드를 제조하기 위한 금형코어를 도시한 사시도. 2 is a perspective view illustrating a mold core for manufacturing a first mold according to the present invention.
도 3은 본 발명에 따른 단량체 주입 단계.3 is a monomer injection step according to the present invention.
도 4는 본 발명에 따른 단량체 중합 반응 단계.4 is a monomer polymerization reaction step according to the present invention.
도 5는 본 발명에 따른 레이저 조사 단계.5 is a laser irradiation step according to the present invention.
도 6은 본 발명에 따른 콘택트렌즈에 가공된 천공구 단면도.Figure 6 is a cross-sectional view of a drilling tool processed in the contact lens according to the present invention.
도 7은 종래의 콘택트렌즈에 가공된 천공구 단면도.7 is a cross-sectional view of a drilling tool processed in a conventional contact lens.
도 8은 본 발명에 따른 콘택트렌즈 제조 완료 단계.8 is a complete step of manufacturing a contact lens according to the present invention.
상술한 본 발명의 특징 및 효과는 첨부된 도면과 관련한 다음의 상세한 설명을 통하여 보다 분명해 질 것이며, 그에 따라 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 본 발명의 기술적 사상을 용이하게 실시할 수 있을 것이다. 본 발명은 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있는바, 특정 실시 예들을 도면에 예시하고 본문에 상세하게 설명하고자 한다. 그러나 이는 본 발명을 특정한 개시형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 출원에서 사용되는 용어는 단지 특정한 실시 예들을 설명하기 위한 것으로, 본 발명을 한정하려는 의도가 아니다.The features and effects of the present invention described above will become more apparent through the following detailed description in relation to the accompanying drawings, and accordingly, those of ordinary skill in the art to which the present invention pertains can easily implement the technical idea of the present invention. will be able Since the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention. The terms used in the present application are only for describing specific embodiments, and are not intended to limit the present invention.
이하, 본 발명의 바람직한 실시 예를 첨부도면을 참조하여 상세히 설명한다. Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
본 발명은 천공구 가공 방법 및 이를 이용하여 가공된 콘택트렌즈에 관한 것으로, 더욱 상세하게는 눈물 순환을 위하여 소프트 콘택트렌즈에 형성되는 천공구를 가공하는 방법 및 이를 이용하여 가공된 콘택트렌즈에 관한 발명이다.The present invention relates to a method of processing a punching ball and a contact lens processed using the same, and more particularly, to a method of processing a punching ball formed in a soft contact lens for tear circulation and a contact lens processed using the same am.
본 발명의 천공구 가공 방법은,The punching tool processing method of the present invention,
콘택트렌즈의 전방 표면을 형성하는 제1몰드(2) 및 상기 콘택트렌즈의 후방 표면을 형성하는 제2몰드(8) 준비 단계;preparing a first mold (2) forming the front surface of the contact lens and a second mold (8) forming the rear surface of the contact lens;
상기 제1몰드(2)의 오목부(4)에 상기 콘택트렌즈의 원료인 단량체(10)가 액상 주입되는 단계;liquid injection of the monomer 10, which is a raw material for the contact lens, into the concave portion 4 of the first mold 2;
상기 제1몰드(2)와 상기 제2몰드(8)가 서로 포개지도록 상기 제1몰드(2)에 상기 제2몰드(8)가 결합되는 단계;coupling the second mold (8) to the first mold (2) so that the first mold (2) and the second mold (8) are superimposed on each other;
상기 단량체(10)가 중합 반응되는 단계;polymerizing the monomer (10);
서로 결합 된 상기 제1몰드(2)와 상기 제2몰드(8)가 지그(jig)(12)에 고정되는 단계;fixing the first mold (2) and the second mold (8) coupled to each other to a jig (12);
상기 제1몰드(2)의 볼록부(6)를 향해 레이저(14)가 조사되는 단계;irradiating a laser 14 toward the convex portion 6 of the first mold 2;
상기 레이저(14)에 의해 상기 콘택트렌즈에 천공구(16)가 형성되는 단계;forming a perforation hole (16) in the contact lens by the laser (14);
상기 제1몰드(2)와 상기 제2몰드(8)가 분리되는 단계;separating the first mold (2) and the second mold (8);
상기 콘택트렌즈(10)의 제조가 완료되는 단계;를 포함하여 진행된다.It proceeds including; the step of completing the manufacture of the contact lens (10).
도 1에는 본 발명에 따른 제1몰드와 제2몰드 준비 단계가 도시되어 있다.1 shows a first mold and a second mold preparation step according to the present invention.
상기 콘택트렌즈의 전방 표면을 형성하는 제1몰드(2) 및 상기 콘택트렌즈의 후방 표면을 형성하는 제2몰드(8) 준비 단계에서 상기 제1몰드(2)와 상기 제2몰드(6)는 캐스트 몰드(cast mold) 주조 공법으로 형성되며, 플라스틱 재질로 형성된다.In the preparation step of the first mold 2 forming the front surface of the contact lens and the second mold 8 forming the rear surface of the contact lens, the first mold 2 and the second mold 6 are It is formed by a cast mold casting method, and is formed of a plastic material.
도 2는 본 발명에 따른 제1몰드를 제조하기 위한 금형코어를 도시한 사시도로서, 도 2를 참조하여 제1몰드(8)를 제조하기 위한 금형코어(10)에 대하여 상세히 설명하면 아래와 같다. 2 is a perspective view illustrating a mold core for manufacturing the first mold according to the present invention. The mold core 10 for manufacturing the first mold 8 will be described in detail with reference to FIG. 2 as follows.
금형코어(10)는 기설정된 직경 및 높이를 갖도록 형성될 수 있으며, 내부에는 제1몰드(8)의 제조를 위한 공간이 형성될 수 있다. 그리고, 상측면에는 내측으로 하향 경사진 커브(11)가 형성될 수 있으며, 커브(11)면에는 원형의 띠 형상으로 내면홈(20)이 형성될 수 있다. 이러한 내면홈(20)은 다이아몬드 터닝 절삭머신(DTM) 등을 이용하여 형성될 수 있으며, 내면홈(20)이 형성된 날카로운 엣지 부분은 완만하게 라운딩 처리될 수 있다. The mold core 10 may be formed to have a predetermined diameter and height, and a space for manufacturing the first mold 8 may be formed therein. In addition, a curve 11 inclined downwardly inward may be formed on the upper surface, and an inner groove 20 may be formed in a circular band shape on the surface of the curve 11 . The inner groove 20 may be formed using a diamond turning cutting machine (DTM) or the like, and the sharp edge portion on which the inner groove 20 is formed may be gently rounded.
내면홈(20)에는 상호 이격 배치된 복수의 배출홈(30)이 형성될 수 있다. 예를 들어, 초정밀 드릴 가공기를 이용하여 내면홈(20)에 배출홈(30)을 형성할 수 있고, 이러한 배출홈(30)에 의하여 금형코어(10)에 의해 제작된 제1몰드(8)에는 돌기가 형성될 수 있다. 따라서, 제1몰드(8)에 의하여 제조되는 콘택트렌즈의 경우 천공이 형성되어 눈물의 배출 및 유입이 이루어질 수 있다. A plurality of discharge grooves 30 spaced apart from each other may be formed in the inner groove 20 . For example, the discharge groove 30 can be formed in the inner groove 20 by using an ultra-precision drilling machine, and the first mold 8 manufactured by the mold core 10 by the discharge groove 30 protrusions may be formed. Accordingly, in the case of the contact lens manufactured by the first mold 8, a perforation is formed so that the discharge and inflow of tears can be made.
전술한 금형코어(10)의 형상은 예시된 바에 한정되지 않으며, 배출홈(30)의 구성은 선택적으로 부여될 수 있다. 즉, 후술되는 레이저(14) 조사에 의하여 콘텍트렌즈에 천공구(16)가 형성되기 때문에 배출홈(30)의 구성을 생략할 수도 있고, 레이저(14)를 이용한 천공구(16)의 형성 전에 미리 콘텍트렌즈에 천공을 형성하여 레이저(14)의 조사 위치를 가이드 할 수 있다. The shape of the aforementioned mold core 10 is not limited to the illustrated bar, and the configuration of the discharge groove 30 may be selectively provided. That is, since the perforation hole 16 is formed in the contact lens by irradiation of the laser 14 to be described later, the configuration of the discharge groove 30 may be omitted, and before the formation of the perforation hole 16 using the laser 14 . It is possible to guide the irradiation position of the laser 14 by forming a perforation in the contact lens in advance.
도 3에는 본 발명에 따른 단량체 주입 단계가 도시되어 있다.3 shows the monomer injection step according to the present invention.
상기 제1몰드(2)와 상기 제2몰드(8)의 준비가 완료되면, 상기 제1몰드(2)의 오목부(4)에 상기 콘택트렌즈의 원료가 되는 단량체(10)가 액상 상태로 주입된다.When the preparation of the first mold 2 and the second mold 8 is completed, the monomer 10, which is a raw material for the contact lens, is placed in the concave portion 4 of the first mold 2 in a liquid state. is injected
이때, 상기 단량체(10)는 HEMA(2-Hydroxyethylmethacrylate)일 수 있으며, 상기 단량체(10)의 종류는 제작자의 의도에 따라 달라질 수 있다.In this case, the monomer 10 may be HEMA (2-Hydroxyethylmethacrylate), and the type of the monomer 10 may vary according to the intention of the manufacturer.
상기 제1몰드(2)의 오목부(4)에 상기 단량체(10)가 주입될 때, 상기 단량체(10)는 기 정해진 용량만큼 주입된다.When the monomer 10 is injected into the concave portion 4 of the first mold 2 , the monomer 10 is injected by a predetermined amount.
상기 단량체(10)의 주입이 완료되면, 상기 제1몰드(2)와 상기 제2몰드(8)가 서로 포개지도록 상기 제1몰드(2)에 상기 제2몰드(8)가 결합되는 단계가 진행된다.When the injection of the monomer 10 is completed, the step of coupling the second mold 8 to the first mold 2 so that the first mold 2 and the second mold 8 are superimposed on each other proceeds
상기 제1몰드(2)와 상기 제2몰드(8)의 결합 시 상기 제2몰드(8)는 상기 제1몰드(2)의 오목부(4)에 일정 부분 삽입된다. When the first mold 2 and the second mold 8 are combined, the second mold 8 is partially inserted into the concave portion 4 of the first mold 2 .
상기 제1몰드(2)와 상기 제2몰드(8)가 서로 완전히 결합되었을 때, 상기 제2몰드(8)는 상기 제1몰드(2)의 오목부(4)와 접촉하지 않으며, 상기 제1몰드(2)의 오목부(4)와 상기 제2몰드(8) 사이의 공간은 상기 단량체(10)가 주입되는 공간이 된다.When the first mold 2 and the second mold 8 are fully coupled to each other, the second mold 8 does not come into contact with the concave portion 4 of the first mold 2, and A space between the concave portion 4 of the first mold 2 and the second mold 8 becomes a space into which the monomer 10 is injected.
즉, 상기 제1몰드(2)의 오목부(4)와 상기 제2몰드(8) 사이의 공간은 상기 콘택트렌즈가 형성되는 공간이 되며, 따라서 상기 콘택트렌즈의 단면과 동일한 형상의 단면을 갖도록 형성된다.That is, the space between the concave portion 4 of the first mold 2 and the second mold 8 becomes a space in which the contact lens is formed, so that it has a cross section of the same shape as the cross section of the contact lens. is formed
도 4에는 본 발명에 따른 단량체 중합 반응 단계가 도시되어 있다.4 shows the steps of the monomer polymerization reaction according to the present invention.
상기 제1몰드(2)와 상기 제2몰드(8)의 결합이 완료되면, 상기 단량체(10)가 중합 반응되는 단계가 진행된다.When the bonding of the first mold 2 and the second mold 8 is completed, the polymerization reaction of the monomer 10 proceeds.
상기 단량체(10)가 중합 반응되는 단계에서 상기 단량체(10)에는 일정 온도 이상의 고온이 가해지며, 이로 인해 상기 단량체(10)는 고체화된다. In the step of the polymerization reaction of the monomer 10, a high temperature of at least a certain temperature is applied to the monomer 10, whereby the monomer 10 is solidified.
이때, 상기 제1몰드(2) 및 상기 제2몰드(8)는 중합 반응된 상기 단량체(10)보다 높은 강도를 갖는다.In this case, the first mold 2 and the second mold 8 have higher strength than the polymerization-reacted monomer 10 .
중합 반응에 의해 고체화된 즉, 콘택트렌즈(10)의 형태로 제조된 상기 단량체(10)는 상기 제1몰드(2)와 상기 제2몰드(8)에 의해 압축 고정된 상태이며 즉, 상기 제1몰드(2)와 상기 콘택트렌즈(10) 사이, 상기 제2몰드(8)와 상기 콘택트렌즈(10) 사이에는 빈 공간이 존재하지 않는다.The monomer 10 solidified by a polymerization reaction, that is, prepared in the form of a contact lens 10, is in a compression-fixed state by the first mold 2 and the second mold 8, that is, the first There is no empty space between the first mold 2 and the contact lens 10 and between the second mold 8 and the contact lens 10 .
도 5에는 본 발명에 따른 레이저 조사 단계가 도시되어 있다.5 shows the laser irradiation step according to the present invention.
상기 단량체(10)가 중합 반응되는 단계가 완료되면, 서로 결합 된 상기 제1몰드(2)와 상기 제2몰드(8)가 지그(jig)(12)에 고정되는 단계가 진행된다.When the polymerization reaction of the monomer 10 is completed, a step of fixing the first mold 2 and the second mold 8 bonded to each other to a jig 12 is performed.
상기 제2몰드(8)의 후단이 상기 지그(12)에 고정되면서 상기 제1몰드(2)의 볼록부(6)가 전방을 향하도록 위치하게 된다.While the rear end of the second mold 8 is fixed to the jig 12 , the convex portion 6 of the first mold 2 is positioned to face forward.
상기 지그(12)에 대한 상기 제2몰드(8)의 고정이 완료되면, 상기 제1몰드(2)의 볼록부를 향해 레이저(14)가 조사되는 단계가 진행된다.When the fixing of the second mold 8 to the jig 12 is completed, the step of irradiating the laser 14 toward the convex portion of the first mold 2 is performed.
상기 레이저(14)는 상기 제1몰드(2), 상기 단량체(10) 즉, 상기 콘택트렌즈 및 상기 제2몰드(8)를 차례로 관통하게 된다. 이때, 상기 레이저(14)는 상기 볼록부(6)에 대해 수직으로 조사된다.The laser 14 passes through the first mold 2 , the monomer 10 , that is, the contact lens and the second mold 8 in sequence. At this time, the laser 14 is irradiated perpendicular to the convex portion (6).
상기 레이저(14)에 의해 상기 콘택트렌즈(10)에는 천공구(16)가 형성된다.A perforation hole 16 is formed in the contact lens 10 by the laser 14 .
상기 레이저(14)에 의해 상기 콘택트렌즈(10)에 천공구(16)가 형성되는 단계에서, 상기 천공구(16)는 상기 콘택트렌즈(10)의 반경 방향으로 서로 일정 각도 이격되어 복수 개 형성될 수 있으며, 상기 천공구(16)의 형상 및 개수와 복수 개의 상기 천공구(16) 사이의 이격 각도 및 이격 거리는 제작자의 의도에 따라 달라질 수 있다.In the step of forming the perforations 16 in the contact lens 10 by the laser 14 , the perforations 16 are spaced apart from each other at a predetermined angle in the radial direction of the contact lens 10 to form a plurality The shape and number of the punching spheres 16 and the spacing angle and distance between the plurality of the punching spheres 16 may vary according to the intention of the manufacturer.
도 6에는 본 발명에 따른 콘택트렌즈에 가공된 천공구 단면도가 도시되어 있다.6 is a cross-sectional view of a drilling tool processed in a contact lens according to the present invention.
상기 레이저(14)에 의한 상기 천공구(16) 형성 시, 상기 콘택트렌즈(10)는 상기 제1몰드(2) 및 상기 제2몰드(8)에 압축 고정된 상태이기 때문에 상기 콘택트렌즈(10)에 가해지는 상기 레이저(14)에 의한 열반응이 억제된다. When the hole 16 is formed by the laser 14 , the contact lens 10 is compressed and fixed to the first mold 2 and the second mold 8 , so the contact lens 10 is ) by the laser 14 applied to the thermal reaction is suppressed.
따라서, 도 7에 도시된 바와 같이 콘택트렌즈(10)에 레이저(14)를 직접 조사하여 천공구(18)를 가공하던 종래의 가공 방법 적용 시 천공구(18) 주변에 발생되던 열상에 의한 파손 및 비짐이(burr) 현상 등을 방지할 수 있게 된다.Therefore, as shown in FIG. 7 , when the conventional processing method of processing the punching tool 18 by directly irradiating the laser 14 to the contact lens 10 is applied, damage caused by the laceration occurring around the punching tool 18 . And it is possible to prevent a burr phenomenon.
도 8에는 본 발명에 따른 콘택트렌즈 제조 완료 단계가 도시되어 있다.8 shows the steps of completing the manufacturing of the contact lens according to the present invention.
상기 레이저(14)에 의해 상기 콘택트렌즈(10)에 천공구(16)가 형성되는 단계가 완료되면 상기 제1몰드(2)와 상기 제2몰드(8)를 분리하여 상기 콘택트렌즈(10)의 제조를 완료하게 된다. When the step of forming the perforation hole 16 in the contact lens 10 by the laser 14 is completed, the first mold 2 and the second mold 8 are separated and the contact lens 10 is will complete the manufacture of
앞서 설명한 본 발명의 상세한 설명에서는 본 발명의 바람직한 실시 예들을 참조하여 설명하였지만, 해당 기술 분야의 숙련된 당업자 또는 해당 기술 분야에 통상의 지식을 갖는 자라면 후술 될 특허청구범위에 기재된 본 발명의 사상 및 기술영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다. In the foregoing detailed description of the present invention, although it has been described with reference to preferred embodiments of the present invention, those skilled in the art or those having ordinary knowledge in the technical field have the spirit of the present invention described in the claims to be described later And it will be understood that various modifications and variations of the present invention can be made without departing from the technical scope.

Claims (11)

  1. 콘택트렌즈의 전방 표면을 형성하는 제1몰드 및 상기 콘택트렌즈의 후방 표면을 형성하는 제2몰드 준비 단계;preparing a first mold forming a front surface of the contact lens and a second mold forming a rear surface of the contact lens;
    상기 제1몰드의 오목부에 상기 콘택트렌즈의 원료인 단량체가 액상 주입되는 단계;injecting a liquid-phase monomer, which is a raw material for the contact lens, into the concave portion of the first mold;
    상기 제1몰드와 상기 제2몰드가 서로 포개지도록 상기 제1몰드에 상기 제2몰드가 결합되는 단계;coupling the second mold to the first mold so that the first mold and the second mold overlap each other;
    상기 단량체가 중합 반응되는 단계;polymerizing the monomer;
    서로 결합 된 상기 제1몰드와 상기 제2몰드가 지그(jig)에 고정되는 단계;fixing the first mold and the second mold coupled to each other to a jig;
    상기 제1몰드의 볼록부를 향해 레이저가 조사되는 단계;irradiating a laser toward the convex portion of the first mold;
    상기 레이저에 의해 상기 콘택트렌즈에 천공구가 형성되는 단계;forming a perforation hole in the contact lens by the laser;
    상기 제1몰드와 상기 제2몰드가 분리되는 단계;separating the first mold and the second mold;
    상기 콘택트렌즈의 제조가 완료되는 단계;를 포함하는 것Completing the manufacturing of the contact lens; to include
    을 특징으로 하는 천공구 가공 방법.A punching tool processing method, characterized in that.
  2. 제1항에 있어서,According to claim 1,
    상기 콘택트렌즈의 전방 표면을 형성하는 제1몰드 및 상기 콘택트렌즈의 후방 표면을 형성하는 제2몰드 준비 단계에서,In the preparation step of a first mold forming the front surface of the contact lens and a second mold forming the rear surface of the contact lens,
    상기 제1몰드와 상기 제2몰드는 캐스트 몰드(cast mold) 주조 공법으로 형성되는 것을 특징으로 하는 천공구 가공 방법.The first mold and the second mold are punched tool processing method, characterized in that formed by a cast mold (cast mold) casting method.
  3. 제1항에 있어서,According to claim 1,
    상기 제1몰드의 오목부에 상기 콘택트렌즈의 원료인 단량체가 액상 주입되는 단계에서,In the step of liquid-injecting the monomer, which is the raw material of the contact lens, into the concave portion of the first mold,
    상기 단량체는 HEMA(2-Hydroxyethylmethacrylate)인 것을 특징으로 하는 천공구 가공 방법.The monomer is a drilling tool processing method, characterized in that HEMA (2-Hydroxyethylmethacrylate).
  4. 제1항에 있어서,According to claim 1,
    상기 단량체가 중합 반응되는 단계에서 상기 단량체에 가해지는 온도는 일정 온도 이상인 것을 특징으로 하는 천공구 가공 방법.The temperature applied to the monomer in the step of the polymerization reaction of the monomer is a drilling ball processing method, characterized in that at least a certain temperature.
  5. 제4항에 있어서,5. The method of claim 4,
    상기 단량체가 중합 반응되는 단계에서 상기 단량체는 고체화되는 것을 특징으로 하는 천공구 가공 방법.In the step in which the monomer is polymerized, the monomer is solidified.
  6. 제5항에 있어서,6. The method of claim 5,
    상기 단량체가 중합 반응되는 단계에서,In the step of polymerization reaction of the monomer,
    상기 제1몰드 및 상기 제2몰드는 중합 반응된 상기 단량체보다 높은 강도를 갖는 것을 특징으로 하는 천공구 가공 방법.The first mold and the second mold are perforated tool processing method, characterized in that having a higher strength than the polymerization-reacted monomer.
  7. 제6항에 있어서,7. The method of claim 6,
    상기 단량체가 중합 반응되는 단계에서 고체화된 상기 단량체는 상기 제1몰드와 상기 제2몰드에 압축 고정되는 것을 특징으로 하는 천공구 가공 방법.The monomer solidified in the step of polymerization of the monomer is a punching tool processing method, characterized in that the compression fixed to the first mold and the second mold.
  8. 제1항에 있어서,According to claim 1,
    상기 제1몰드의 볼록부를 향해 레이저가 조사되는 단계에서,In the step of irradiating a laser toward the convex portion of the first mold,
    상기 레이저는 상기 제1몰드, 상기 단량체 및 상기 제2몰드를 차례로 관통하는 것을 특징으로 하는 천공구 가공 방법.The laser is a drilling tool processing method, characterized in that through the first mold, the monomer and the second mold sequentially.
  9. 제8항에 있어서,9. The method of claim 8,
    상기 제1몰드의 볼록부를 향해 레이저가 조사되는 단계에서,In the step of irradiating a laser toward the convex portion of the first mold,
    상기 레이저는 상기 볼록부에 대해 수직으로 조사되는 것을 특징으로 하는 천공구 가공 방법.The laser is a punching tool processing method, characterized in that irradiated perpendicular to the convex portion.
  10. 제1항에 있어서,According to claim 1,
    상기 레이저에 의해 상기 콘택트렌즈에 천공구가 형성되는 단계에서,In the step of forming a hole in the contact lens by the laser,
    상기 천공구는 상기 콘택트렌즈의 반경방향으로 서로 일정 각도 이격되어 복수 개 형성되는 것을 특징으로 하는 천공구 가공 방법.The punching ball processing method, characterized in that the plurality of punching balls are spaced apart from each other at a certain angle in the radial direction of the contact lens.
  11. 제1항 내지 제10항 중 어느 한 항의 천공구 가공 방법에 의해 가공된 천공구가 형성된 콘택트렌즈. [Claim 11] A contact lens formed with a punched sphere processed by the punching sphere processing method of any one of claims 1 to 10.
PCT/KR2021/004184 2020-04-14 2021-04-05 Penetration hole processing method, and contact lens processed using same WO2021210824A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102570221B1 (en) * 2022-12-29 2023-08-24 김연삼 Function contact lens

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102229389B1 (en) * 2020-04-14 2021-03-17 김지태 Penetration hole processing method and Contact lenses processed using this

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910005553A (en) * 1989-08-16 1991-03-30 삐에르 올리비에 Amplifier with determined input impedance and various transconductance values
WO2001074578A2 (en) * 2000-03-31 2001-10-11 Bausch & Lomb Incorporated Methods and devices to control polymerization
US20060285071A1 (en) * 2005-06-21 2006-12-21 Bausch & Lomb Incorporated Femtosecond laser micromachining of a contact lens and a contact lens manufactured thereby
KR20080102460A (en) * 2007-05-21 2008-11-26 이무석 Contact lens with opened-hole, manufacturing method and manufacturing data transfer program thereof
KR101203131B1 (en) * 2010-07-26 2012-11-20 (주)지오메디칼 Method of manufacturing porous contact lens and the porous contact lens manufactured by using the method
KR101586630B1 (en) * 2014-04-08 2016-01-19 박계능 Contact lens having a plurality of grooves and forming method thereof
KR102229389B1 (en) * 2020-04-14 2021-03-17 김지태 Penetration hole processing method and Contact lenses processed using this

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910005553A (en) * 1989-08-16 1991-03-30 삐에르 올리비에 Amplifier with determined input impedance and various transconductance values
WO2001074578A2 (en) * 2000-03-31 2001-10-11 Bausch & Lomb Incorporated Methods and devices to control polymerization
US20060285071A1 (en) * 2005-06-21 2006-12-21 Bausch & Lomb Incorporated Femtosecond laser micromachining of a contact lens and a contact lens manufactured thereby
KR20080102460A (en) * 2007-05-21 2008-11-26 이무석 Contact lens with opened-hole, manufacturing method and manufacturing data transfer program thereof
KR101203131B1 (en) * 2010-07-26 2012-11-20 (주)지오메디칼 Method of manufacturing porous contact lens and the porous contact lens manufactured by using the method
KR101586630B1 (en) * 2014-04-08 2016-01-19 박계능 Contact lens having a plurality of grooves and forming method thereof
KR102229389B1 (en) * 2020-04-14 2021-03-17 김지태 Penetration hole processing method and Contact lenses processed using this

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102570221B1 (en) * 2022-12-29 2023-08-24 김연삼 Function contact lens

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