WO2016175619A1 - Method for manufacturing blue light-blocking contact lens, and blue light-blocking contact lens manufactured by manufacturing method - Google Patents
Method for manufacturing blue light-blocking contact lens, and blue light-blocking contact lens manufactured by manufacturing method Download PDFInfo
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- WO2016175619A1 WO2016175619A1 PCT/KR2016/004560 KR2016004560W WO2016175619A1 WO 2016175619 A1 WO2016175619 A1 WO 2016175619A1 KR 2016004560 W KR2016004560 W KR 2016004560W WO 2016175619 A1 WO2016175619 A1 WO 2016175619A1
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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
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- the present invention relates to a method for manufacturing a blue light blocking contact lens and a blue light blocking contact lens manufactured by the manufacturing method, and more particularly, to prepare a blue light blocking thin film in advance, and to prepare the blue light blocking thin film to be embedded in the lens.
- Light is a kind of electromagnetic waves and includes visible light (380 nm to 780 nm), ultraviolet light (380 nm or less), and infrared light (700 nm or more), and also includes X-rays and gamma rays.
- Visible light is purple light (approximately 380 nm) to red light (approximately 700 nm), which means the wavelength range that humans can see.
- blue light is violet light and has high refractive power and high dispersibility. Chromatic aberration occurs in the eye and causes focus in front of the retina, which reduces the image sharpness and causes eye fatigue.
- the cells become insensitive until recovered, which is a metabolic process. Absorption of the blue light has been shown to reverse the recovery process early, and this early reversal has been studied to increase the risk of damage and cause the accumulation of pigment lipofuscin in the retina.
- the accumulation of lipofuscin occurs in the retinal pigment epithelial (RPE) layer, where the extracellular drusen aggregates in the RPE layer due to excessive amounts of lipofucin, and the drusen causes the RPE layer to It is known to cause damage or death of these cells by interfering with or blocking the provision of nutrients to the receptor.
- RPE retinal pigment epithelial
- the blue light since the blue light has a high energy and a high permeability, the blue light has a strong irritation to the optic nerve, thereby increasing the eye fatigue.
- the electromagnetic wave shielding film for mobile phones which is 20-1999-0039927, has been devised, which is a shielding plate incorporating a shielding pad incorporating a copper pad coated with a fiber fabric having a predetermined mesh between two transparent synthetic resin films.
- the adhesive layer is attached to the front of the mobile phone by the adhesive layer adhered to the rear plate of the shielding plate, the shielding plate is a transparent material through which the inside is transparent, and the receiving hole is drilled to have a predetermined diameter and arrangement to correspond to the speaker hole of the mobile phone in the upper center.
- the lower center has a structure in which the receiving hole is perforated to have a predetermined diameter and arrangement to correspond to the transmitting hole of the mobile phone, and blocks harmful electromagnetic waves emitted from the front keypad and the handset of the mobile phone during handset. .
- a contact lens having a conventional blue light blocking function has a colorant directly contacting the eye, and when applied to the eye, the eye is impaired (Korea Patent Publication No. 10-2009-0036122), or a dye made of particles is manufactured to have mobility inside the lens. (Korean Patent No. 10-1190303) There was a problem that the blue light blocking effect is low or the elution of the dye is concerned. In addition, as disclosed in the Republic of Korea Patent Registration No.
- the present invention is to solve the above problems, by manufacturing a blue light blocking thin film in advance to suppress the phenomenon that the tint portion in the streamlined mold edge portion during the manufacturing process, and the blue light blocking thin film is embedded in the lens by the user
- a method for manufacturing a blue light blocking contact lens that does not directly touch the eye when wearing the blue light blocking thin film when wearing.
- the blue light blocking part including the blue light is embedded in the lens.
- the thickness of the blue light blocking thin film of the second step may provide a method for manufacturing a blue light blocking contact lens in which a blue light blocking portion having a thickness of 100nm to 50 ⁇ m embedded in the lens.
- the lens forming composition is 1 to 7 parts by weight of styrene per 100 parts by weight of the monomer mixture, 0.1 to 3 parts by weight crosslinking agent, and 0.1 to 0.5 initiator It is possible to provide a method for manufacturing a blue light blocking contact lens having a blue light blocking part including a weight part embedded in the lens.
- the method of manufacturing a blue light blocking contact lens having a blue light blocking part embedded in the lens including the step of leaving the upper mold after the fifth step, and processing the second thin film lens surface using a cutting shelf. Can provide.
- a method of manufacturing a blue light blocking contact lens having a blue light blocking part embedded in the lens including the step of irradiating ultraviolet rays after the first step or after the fifth step.
- the present invention may also provide a blue light blocking contact lens in which the blue light blocking part manufactured by any one of the above manufacturing methods is embedded in the lens to solve the above problems.
- a blue light blocking contact lens having a blue light blocking unit having a distance of 2 to 10 mm from a center of the blue light blocking contact lens to the blue light blocking unit may be embedded in the lens.
- the blue light blocking thin film may be manufactured in advance, thereby preventing a phenomenon in which the color tone part is agglomerated at the edge portion of the streamlined mold during manufacturing by the existing manufacturing process.
- the present invention is manufactured so that the blue light blocking thin film is embedded in the lens so that the blue light blocking thin film does not directly contact the eye when worn by the user can feel comfortable without straining the eye when worn.
- FIG. 1 is a cross-sectional view of a blue light blocking contact lens having a blue light blocking part manufactured according to an embodiment of the present invention.
- FIG. 2 illustrates a front surface of a blue light blocking contact lens having a blue light blocking part manufactured therein according to an embodiment of the present invention.
- 3 to 6 illustrate a manufacturing process of a blue light blocking contact lens having a blue light blocking unit embedded therein according to an embodiment of the present invention.
- the inventors of the present invention can prepare the blue light blocking thin film in advance to suppress the phenomenon that the color tone portion agglomerates at the streamlined mold edge during the manufacturing process, and to manufacture the blue light blocking thin film to be embedded in the lens, the blue light when the user wears In order to confirm that the barrier thin film can be comforted by not directly contacting the eye, the related experiment was repeated.
- 3 to 6 illustrate a manufacturing process of a blue light blocking contact lens having a blue light blocking unit embedded therein according to an embodiment of the present invention.
- the present invention comprises a first step of forming a first thin film by applying the lens forming composition to the lower mold; Attaching the blue light blocking thin film to the upper mold; Bonding the blue light blocking thin film to the first thin film; A fourth step of applying the lens forming composition to an upper mold; And a fifth step of stacking the lower mold to which the first thin film is attached to the upper mold of the fourth step and polymerizing the composition for forming a lens to form a second thin film, the blue light blocking part having the blue light blocking part embedded therein. It is possible to provide a method for manufacturing a contact lens.
- the method may further include irradiating ultraviolet rays after the first and fifth steps, and preferably, 20 to 70 minutes of ultraviolet rays until the polymerization rate of the lens forming composition is 90% or more. You can investigate.
- the ultraviolet irradiation is for forming the first thin film and the second thin film, and may be performed under anoxic conditions, and preferably under inert gas conditions such as nitrogen or argon.
- a first step of forming a first thin film by applying a lens forming composition to a lower mold may be provided.
- the lens forming composition may include 1 to 7 parts by weight of styrene, 0.1 to 3 parts by weight of a crosslinking agent, and 0.1 to 0.5 parts by weight of an initiator per 100 parts by weight of the monomer mixture.
- 1 to 7 parts by weight of styrene may be copolymerized per 100 parts by weight of the monomer mixture, and 0.3 parts by weight of crosslinking agent and 0.1 parts by weight of initiator may be added, respectively.
- Patent 3,391,224 discloses a composition in which a polyester is blended with 5-20% by weight of methyl methacrylate and less than 5% by weight of styrene to produce a thermoset product that can be used to make ophthalmic lenses.
- Patent 3,513,224 discloses about 12 to 70 to 75% by weight of specific unsaturated polyesters formed by reacting fumaric acid with triethylene glycol and 2,2-dimethyl-1,3-propanediol (or known as neopentyl glycol).
- a composition is blended with from 18 to 18 weight percent styrene and from 8 to 12 weight percent ethylene glycol dimethacrylate.
- Styrene increases the refractive index to about 1.52, and ethylene glycol dimethacrylate reduces the degree of fracture of the polymer.
- the crosslinking agent cross-links the monomer mixture in the composition for forming the lens upon UV irradiation and contributes to the formation of the first thin film and the second thin film, and when the crosslinking agent is included in less than 0.1 part by weight, the effect as a binder may be insignificant. If the content exceeds 3 parts by weight, the elasticity and moisture content of the contact lens may be reduced.
- the said 1st thin film is a form which does not start polymer polymerization.
- the first thin film may have a form in which the lens forming composition is coated, and as described below, the lower mold having the first thin film attached to the upper mold coated with the polymer forming composition is laminated in the fifth step. It is preferable to start the post-polymerization.
- a second step of attaching the blue light blocking thin film to the upper mold and a third step of bonding the blue light blocking thin film to the first thin film may be provided.
- the blue light blocking thin film may block transmission of a wavelength of 380 nm to 520 nm which gives strong stimulation to the optic nerve, and the thickness of the blue light blocking thin film may be adjusted according to the refractive index of the contact lens between 100 nm and 50 ⁇ m. If the thickness of the blue light blocking thin film is less than 100 nm, the economical efficiency of the manufacturing process may be a problem. If the thickness of the blue light blocking thin film is greater than 50 ⁇ m, the contact lens may expand, resulting in a contact lens having a different refractive index than that of the intended manufacturing process.
- the blue light blocking thin film may be formed at a wider area than the iris area, and the distance from the center of the blue light blocking contact lens to the blue light blocking thin film may be 2 to 10 mm.
- the distance to the blue light blocking thin film is less than 2 mm, it may obstruct the visual field by covering a transparent part in the center, and when it exceeds 10 mm, the blue light blocking thin film may be too wider than the iris area, and thus, it may be difficult to fully exhibit the blue light blocking function.
- the blue light blocking thin film may be colored with a blue light blocking pigment on a thin film including any one or a combination thereof selected from the group consisting of polystyrene, polyethylene, polypropylene, and polyvinylchloride. Can be formed.
- the blue light blocking pigment may be BPI filter vision 450, BPI diamond dye 500, or Iron Oxides (Red) 21cfr No.73.3125, any one selected from the group consisting of polystyrene, polyethylene, polypropylene, and polyvinyl chloride.
- the blue light blocking thin film may be formed by immersing a thin film including one or a combination thereof in a heated color complex including a dye solution containing the blue light blocking dye for a period of time.
- the blue light blocking thin film may be manufactured in a form in which an optical zone (OZ) is removed.
- the optical zone refers to a circular region of a portion called the pupil that is on the center of the human iris, the optical zone may be a distance of 2mm to 10mm from the center of the blue light blocking thin film, the shape is not particularly limited, It is preferred to be circular or elliptical, similar to the pupil form.
- a fifth step of forming a thin film may be provided.
- the lens forming composition used in the fourth step may be the same as the lens forming composition used in the first step, and the type and content of the composition are the same as described above.
- the blue light blocking thin film is embedded in the contact lens by stacking the lower mold having the blue light blocking thin film attached to the first thin film on the upper mold to polymerize the lens forming composition applied in the fourth step.
- the second thin film may be manufactured in the form of a mold, and the shape of the second thin film is as shown in FIG. 6.
- the lower mold is laminated on the upper mold to polymerize and bond the polymer at a portion where the first thin film and the second thin film are in contact with each other, and the polymerization reaction proceeds while the viscosity of the polymer increases.
- the composition for forming a lens and the first thin film may form one second thin film.
- the present invention may also provide a method for manufacturing a contact lens in which a blue light blocking part is embedded in the lens, including the step of leaving the upper mold after the fifth step and processing the lens surface by using a cutting lathe.
- the surface of the contact lens can be processed using the cutting lathe, and the portion processed with the cutting lathe is smoothly formed through the front surface grinding and the edge grinding, and then separated from the lower mold, as shown in FIGS. 1 and 2.
- the blue light blocking unit may form a contact lens embedded in the lens.
- the present invention can also provide a contact lens in which the blue light blocking unit manufactured by the manufacturing method is embedded in the lens.
- FIG. 1 is a cross-sectional view of a blue light blocking contact lens having a blue light blocking part manufactured according to an embodiment of the present invention
- FIG. 2 is a blue light blocking part containing a blue light blocking part manufactured according to an embodiment of the present invention. The front side of a contact lens is shown, respectively.
- the blue light blocking unit may have a thickness of 100 nm to 50 ⁇ m.
- the thickness of the blue light blocking thin film is less than 100 nm, it may be difficult to manufacture, and thus the economics of the manufacturing process may be a problem.
- the distance from the center of the blue light blocking contact lens to the blue light blocking part may be 2 mm to 10 mm.
- the distance to the blue light blocking thin film is less than 2 mm, it may obstruct the visual field by covering a transparent part in the center, and when it exceeds 10 mm, the blue light blocking thin film may be too wider than the iris area, and thus, it may be difficult to fully exhibit the blue light blocking function.
- the present invention can suppress the phenomenon in which the color tone portion agglomerates in the streamlined mold edge part by manufacturing the blue light blocking thin film in advance, and the blue light blocking thin film when the lens is worn by manufacturing the blue light blocking thin film to be embedded in the lens. It can be said that the industrial use is very useful in that it does not directly touch the eye so that the user can feel comfort without burdening the eye.
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Abstract
Description
본 발명은 청색광 차단 콘택트 렌즈의 제조방법 및 상기 제조방법에 의해 제조된 청색광 차단 콘택트 렌즈에 관한 것으로서, 더욱 상세하게는 청색광 차단 박막을 미리 제조하고, 청색광 차단 박막이 렌즈 내부에 함입되도록 제조하는 청색광 차단 콘택트 렌즈의 제조방법 및 상기 제조방법에 의해 제조된 청색광 차단 콘택트 렌즈에 관한 것이다. The present invention relates to a method for manufacturing a blue light blocking contact lens and a blue light blocking contact lens manufactured by the manufacturing method, and more particularly, to prepare a blue light blocking thin film in advance, and to prepare the blue light blocking thin film to be embedded in the lens. A method of manufacturing a blocking contact lens and a blue light blocking contact lens manufactured by the manufacturing method.
빛은 전자기파의 일종으로 가시광선(380㎚ 내지 780㎚)과 자외선 계열(380㎚ 이하) 및 적외선 계열(700㎚ 이상)을 포함하며 X선이나 감마선도 포함하여 지칭된다.Light is a kind of electromagnetic waves and includes visible light (380 nm to 780 nm), ultraviolet light (380 nm or less), and infrared light (700 nm or more), and also includes X-rays and gamma rays.
가시광선은 보라색계열(약 380㎚)에서부터 적색계열(약 700㎚)까지의 빛으로서 인간이 사물을 볼 수 있는 파장 범위를 의미하며, 특히 청색광은 보라색계열의 가시광선으로서 굴절력과 분산능이 높다는 점에서 색수차를 발생시키며, 망막 앞에 초점이 맺히게 하므로 상의 선명도가 상대적으로 감소하여 눈의 피로를 유발한다. Visible light is purple light (approximately 380 nm) to red light (approximately 700 nm), which means the wavelength range that humans can see. Especially, blue light is violet light and has high refractive power and high dispersibility. Chromatic aberration occurs in the eye and causes focus in front of the retina, which reduces the image sharpness and causes eye fatigue.
구체적으로, 광이 안구의 광수용체 세포에 의해 흡수되면 세포는 회복될 때까지 비감수성이 되는데 이러한 회복 과정은 대사 과정에 해당된다. 상기 청색광의 흡수는 상기 회복 과정을 조기에 역전시키는 것으로 나타났으며, 이러한 조기 역전은 손상의 위험을 증가시키고, 망막 내 색소 리포푸신(lipofuscin)의 축적을 유발하는 것으로 연구되었다. 특히, 상기 리포푸신의 축적은 망막 색소 상피(RPE) 층에서 발생하는데, 세포 외 물질인 드루젠(drusen)이 과도한 양의 리포푸신으로 인해 RPE 층 내에 응집되고, 상기 드루젠은 RPE 층이 광수용체에 영양물을 제공하는 것을 방해하거나 차단함에 따라 이들 세포의 손상 또는 사멸을 유발하는 것으로 알려져 있다.Specifically, when light is absorbed by the eye's photoreceptor cells, the cells become insensitive until recovered, which is a metabolic process. Absorption of the blue light has been shown to reverse the recovery process early, and this early reversal has been studied to increase the risk of damage and cause the accumulation of pigment lipofuscin in the retina. In particular, the accumulation of lipofuscin occurs in the retinal pigment epithelial (RPE) layer, where the extracellular drusen aggregates in the RPE layer due to excessive amounts of lipofucin, and the drusen causes the RPE layer to It is known to cause damage or death of these cells by interfering with or blocking the provision of nutrients to the receptor.
뿐만 아니라, 청색광은 에너지가 크고 투과력도 높다는 점에서 시신경에 자극을 강하게 주기 때문에 눈의 피로를 가중시킨다는 문제점이 있다.In addition, since the blue light has a high energy and a high permeability, the blue light has a strong irritation to the optic nerve, thereby increasing the eye fatigue.
따라서, 청색광의 투과를 막기 위한 렌즈에 관한 연구가 진행되어 왔는데, 종래에는 전자기기 자체에 청색광 차단 기능이 가미된 필름을 부착하는 기술이 시도되었다. 일예로, 공개실용 20-1999-0039927호인 휴대폰용 전자파 차폐필름이 고안된 바 있으며, 이는 두 장의 투명한 합성수지필름 사이에 소정의 메쉬를 갖는 섬유원단을 구리도금한 차폐패드를 합체한 구조의 차폐판을 차폐판의 후면판에 점착시킨 점착층에 의해 휴대폰의 전면에 점착시키되, 상기 차폐판은 내부가 투시되는 투명 재질로서, 상부 중앙에는 휴대폰의 스피커공과 대응되도록 소정의 직경과 배열을 갖도록 수신공이 천공되고 하부 중앙에는 휴대폰의 송신공과 대응되도록 소정의 직경과 배열을 갖도록 수신공이 천공된 구조로 이루어진 것으로, 휴대폰의 송수화시 휴대폰의 전면 키패드부와 송수화부에서 방출되는 유해 전자파를 차단시키도록 하고 있다.Accordingly, studies have been made on a lens for preventing the transmission of blue light, and in the related art, a technique of attaching a film having a blue light blocking function to an electronic device itself has been attempted. For example, the electromagnetic wave shielding film for mobile phones, which is 20-1999-0039927, has been devised, which is a shielding plate incorporating a shielding pad incorporating a copper pad coated with a fiber fabric having a predetermined mesh between two transparent synthetic resin films. The adhesive layer is attached to the front of the mobile phone by the adhesive layer adhered to the rear plate of the shielding plate, the shielding plate is a transparent material through which the inside is transparent, and the receiving hole is drilled to have a predetermined diameter and arrangement to correspond to the speaker hole of the mobile phone in the upper center. The lower center has a structure in which the receiving hole is perforated to have a predetermined diameter and arrangement to correspond to the transmitting hole of the mobile phone, and blocks harmful electromagnetic waves emitted from the front keypad and the handset of the mobile phone during handset. .
그러나 제조되는 전자기기 모두에 청색광 차단 필름을 부착하는 방법은 제품의 제조 단가를 상승시킨다는 문제점이 꾸준히 제기되어 왔고, 이에 최근에는 사용자의 안경이나 콘택트 렌즈에 청색광 차단 기능이 가미시키는 방향으로 연구가 진행되고 있다. 또한, 안경을 미착용 하기 위해 콘택트 렌즈를 착용하거나 라식 등의 미용 보조 수술을 받는 최근의 트렌드에 발맞추어 콘택트 렌즈에 청색광 차단 기능을 가미시키는 방안에 대한 연구가 활발히 진행되고 있는 실정이다.However, the method of attaching the blue light blocking film to all the manufactured electronic devices has been steadily raised the problem of increasing the manufacturing cost of the product, and in recent years, research has been conducted in the direction that the blue light blocking function is applied to the user's glasses or contact lenses. It is becoming. In addition, in accordance with the recent trend of wearing contact lenses or wearing cosmetic surgery such as LASIK for non-wearing glasses, studies are being actively conducted to apply blue light blocking functions to contact lenses.
그러나 종래의 청색광 차단 기능을 갖는 콘택트 렌즈는 착색제가 안구에 직접 접촉하여 착용시 안구에 무리를 주거나(대한민국 공개특허 제10-2009-0036122), 입자로 이루어진 염료가 렌즈 내부에서 이동성을 갖게 제조되어(대한민국 등록특허 제10-1190303) 청색광 차단 효과가 낮거나 염료의 용출이 우려되는 문제점이 있었다. 또한, 대한민국 등록특허 제10-1190303에 개시된 바와 같이, 종래에 사용되던 채색부를 포함하는 콘텍트 렌즈의 제조방법에 의할 때, 색조부를 주형에 도포한 후 다시 주형을 이용하여 실리콘 패드에 패딩하고, 자외선 조사를 통해 고분자 중합 반응을 진행시켜 채색부를 형성하는 방법에 의하나, 색조부가 유선형의 주형에 도포되면서 가장자리의 지그 부위에 뭉치는 현상이 발생하여 채색부가 균일하게 형성되지 못하는 문제점이 있었다.However, a contact lens having a conventional blue light blocking function has a colorant directly contacting the eye, and when applied to the eye, the eye is impaired (Korea Patent Publication No. 10-2009-0036122), or a dye made of particles is manufactured to have mobility inside the lens. (Korean Patent No. 10-1190303) There was a problem that the blue light blocking effect is low or the elution of the dye is concerned. In addition, as disclosed in the Republic of Korea Patent Registration No. 10-1190303, according to the manufacturing method of the contact lens including a conventionally used coloring portion, after applying the color tone to the mold and padded on the silicon pad using the mold again, The method of forming a colored portion by advancing the polymer polymerization reaction through ultraviolet irradiation, but the color tone is applied to the streamlined mold as the agglomeration occurs on the jig portion of the edge there was a problem that the colored portion is not formed uniformly.
본 발명은 상기와 같은 문제를 해결하기 위한 것으로서, 청색광 차단 박막을 미리 제조하여 제조공정 중에 색조부가 유선형의 주형 가장자리 부위에 뭉치는 현상을 억제하고, 청색광 차단 박막이 렌즈 내부에 함입되도록 함으로써 사용자가 착용시 청색광 차단 박막이 안구에 직접 닿지 않아 착용시 안구에 무리를 주지 않고 편안함을 느낄수 있게 하는 청색광 차단 콘택트렌즈의 제조방법을 제공한다.The present invention is to solve the above problems, by manufacturing a blue light blocking thin film in advance to suppress the phenomenon that the tint portion in the streamlined mold edge portion during the manufacturing process, and the blue light blocking thin film is embedded in the lens by the user Provided is a method for manufacturing a blue light blocking contact lens that does not directly touch the eye when wearing the blue light blocking thin film when wearing.
본 발명은 상기와 같은 종래 기술의 문제점을 해결하기 위하여 The present invention to solve the problems of the prior art as described above
렌즈 형성용 조성물을 하부주형에 도포하여 제1박막을 형성하는 제1단계; A first step of forming a first thin film by applying the lens forming composition to a lower mold;
청색광 차단 박막을 상부주형에 부착시키는 제2단계; Attaching the blue light blocking thin film to the upper mold;
상기 청색광 차단 박막을 상기 제1박막에 접합시키는 제3단계; Bonding the blue light blocking thin film to the first thin film;
상기 렌즈 형성용 조성물을 상부주형에 도포하는 제4단계; 및 A fourth step of applying the lens forming composition to an upper mold; And
상기 제1박막이 부착된 하부주형을 상기 제4단계의 상부주형에 적층하고 렌즈 형성용 조성물을 중합하여 제2박막을 형성하는 제5단계;를 포함하는, 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.And a fifth step of laminating the lower mold to which the first thin film is attached to the upper mold of the fourth step and polymerizing the lens forming composition to form a second thin film. The blue light blocking part including the blue light is embedded in the lens. A method of manufacturing a blocking contact lens can be provided.
일 실시예에 있어서, 상기 제2단계의 상기 청색광 차단 박막의 두께는 100㎚ 내지 50㎛인 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.In one embodiment, the thickness of the blue light blocking thin film of the second step may provide a method for manufacturing a blue light blocking contact lens in which a blue light blocking portion having a thickness of 100nm to 50㎛ embedded in the lens.
일 실시예에 있어서, 상기 렌즈 형성용 조성물은 단량체(monomer) 혼합물 100 중량부당 스티렌(styrene) 1 내지 7중량부, 교차결합제(crosslinking agent) 0.1 내지 3 중량부, 및 개시제(initiator) 0.1 내지 0.5 중량부를 포함하는 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.In one embodiment, the lens forming composition is 1 to 7 parts by weight of styrene per 100 parts by weight of the monomer mixture, 0.1 to 3 parts by weight crosslinking agent, and 0.1 to 0.5 initiator It is possible to provide a method for manufacturing a blue light blocking contact lens having a blue light blocking part including a weight part embedded in the lens.
일 실시예에 있어서, 상기 제5단계 이후 상부주형을 이탈시키고, 절삭선반을 이용하여 제2박막 렌즈 표면을 가공하는 단계를 포함하는 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.In one embodiment, the method of manufacturing a blue light blocking contact lens having a blue light blocking part embedded in the lens including the step of leaving the upper mold after the fifth step, and processing the second thin film lens surface using a cutting shelf. Can provide.
일 실시예에 있어서, 상기 제1단계 이후 또는 상기 제5단계 이후 자외선을 조사하는 단계를 포함하는 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.In one embodiment, a method of manufacturing a blue light blocking contact lens having a blue light blocking part embedded in the lens including the step of irradiating ultraviolet rays after the first step or after the fifth step.
본 발명은 또한 상기와 같은 문제를 해결하기 위해 상기 제조방법 중 어느 하나에 의해 제조된 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈를 제공할 수 있다.The present invention may also provide a blue light blocking contact lens in which the blue light blocking part manufactured by any one of the above manufacturing methods is embedded in the lens to solve the above problems.
일 실시예에 있어서, 상기 청색광 차단 콘택트렌즈의 중심에서 상기 청색광 차단부까지의 거리가 2 내지 10㎜인 청색광 차단부가 렌즈 내부에 함입된 청색광 차단 콘택트 렌즈를 제공할 수 있다.In an exemplary embodiment, a blue light blocking contact lens having a blue light blocking unit having a distance of 2 to 10 mm from a center of the blue light blocking contact lens to the blue light blocking unit may be embedded in the lens.
본 발명은 청색광 차단 박막을 미리 제조함으로써 기존 제조공정에 의하여 제조시 색조부가 유선형의 주형 가장자리 부위에 뭉치는 현상을 억제할 수 있다. According to the present invention, the blue light blocking thin film may be manufactured in advance, thereby preventing a phenomenon in which the color tone part is agglomerated at the edge portion of the streamlined mold during manufacturing by the existing manufacturing process.
또한, 본 발명은 청색광 차단 박막이 렌즈 내부에 함입되도록 제조함으로써 사용자가 착용시 청색광 차단 박막이 안구에 직접 닿지 않아 착용시 안구에 무리를 주지 않고 편안함을 느낄 수 있다.In addition, the present invention is manufactured so that the blue light blocking thin film is embedded in the lens so that the blue light blocking thin film does not directly contact the eye when worn by the user can feel comfortable without straining the eye when worn.
본 발명의 효과는 상기한 효과로 한정되는 것은 아니며, 본 발명의 상세한 설명 또는 특허청구범위에 기재된 발명의 구성으로부터 추론 가능한 모든 효과를 포함하는 것으로 이해되어야 한다.The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.
도 1은 본 발명의 일 실시예에 따라 제조된 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 단면을 도시한 것이다.1 is a cross-sectional view of a blue light blocking contact lens having a blue light blocking part manufactured according to an embodiment of the present invention.
도 2는 본 발명의 일 실시예에 따라 제조된 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 전면을 도시한 것이다.2 illustrates a front surface of a blue light blocking contact lens having a blue light blocking part manufactured therein according to an embodiment of the present invention.
도 3 내지 도 6은 본 발명의 일 실시예에 따른 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 제조공정을 도시한 것이다.3 to 6 illustrate a manufacturing process of a blue light blocking contact lens having a blue light blocking unit embedded therein according to an embodiment of the present invention.
이하에서는 실시예에 의하여 본 발명을 상세히 설명하기로 한다. 그러나 본 발명은 여러 가지 상이한 형태로 구현될 수 있으며, 따라서 여기에서 설명하는 실시예로 한정되는 것은 아니다. Hereinafter, the present invention will be described in detail by examples. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.
상기 기술한 바와 같이, 시신경에 강한 자극을 가하여 눈의 피로를 가중시키는 청색광을 차단시키기 위해 안경 또는 콘택트 렌즈에 착색을 하는 방법을 차용하였으나, 종래 기술은 착색제가 인체에 직접 닿거나 제조공정 중 채색부가 지그 부위에 뭉치게 되어 균일한 채색이 어렵다는 문제점이 있었다. 따라서, 본 발명의 발명자들은 청색광 차단 박막을 사전에 제조하여 제조공정 중에 색조부가 유선형의 주형 가장자리에 뭉치는 현상을 억제할 수 있고, 청색광 차단 박막이 렌즈 내부에 함입되도록 제조함으로써 사용자가 착용시 청색광 차단 박막이 안구에 직접 닿지 않도록 함으로써 편안함을 느낄 수 있음을 확인하고자, 관련된 실험을 반복하였다.As described above, in order to block the blue light which adds a strong stimulus to the optic nerve to increase eye fatigue, a method of coloring the glasses or contact lenses is employed. However, the prior art uses colorants directly contacting the human body or coloring during the manufacturing process. There is a problem in that the uniform jig is difficult to uniformly color the area. Therefore, the inventors of the present invention can prepare the blue light blocking thin film in advance to suppress the phenomenon that the color tone portion agglomerates at the streamlined mold edge during the manufacturing process, and to manufacture the blue light blocking thin film to be embedded in the lens, the blue light when the user wears In order to confirm that the barrier thin film can be comforted by not directly contacting the eye, the related experiment was repeated.
이하 본 발명의 도면을 참조하여 구체적으로 설명하기로 한다.Hereinafter, with reference to the drawings of the present invention will be described in detail.
도 3 내지 도 6은 본 발명의 일 실시예에 따른 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 제조공정을 도시한 것이다.3 to 6 illustrate a manufacturing process of a blue light blocking contact lens having a blue light blocking unit embedded therein according to an embodiment of the present invention.
본 발명은 렌즈 형성용 조성물을 하부주형에 도포하여 제1박막을 형성하는 제1단계; 청색광 차단 박막을 상부주형에 부착시키는 제2단계; 상기 청색광 차단 박막을 상기 제1박막에 접합시키는 제3단계; 상기 렌즈 형성용 조성물을 상부주형에 도포하는 제4단계; 및 상기 제1박막이 부착된 하부주형을 상기 제4단계의 상부주형에 적층하고 렌즈 형성용 조성물을 중합하여 제2박막을 형성하는 제5단계를 포함하는, 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 제조방법을 제공할 수 있다.The present invention comprises a first step of forming a first thin film by applying the lens forming composition to the lower mold; Attaching the blue light blocking thin film to the upper mold; Bonding the blue light blocking thin film to the first thin film; A fourth step of applying the lens forming composition to an upper mold; And a fifth step of stacking the lower mold to which the first thin film is attached to the upper mold of the fourth step and polymerizing the composition for forming a lens to form a second thin film, the blue light blocking part having the blue light blocking part embedded therein. It is possible to provide a method for manufacturing a contact lens.
또한, 상기 제1단계 및 상기 제5단계 이후 자외선을 조사하는 단계를 더 포함할 수 있고, 바람직하게는 상기 렌즈 형성용 조성물의 중합율이 90% 이상이 될 때까지 자외선을 20분 내지 70분간 조사할 수 있다.The method may further include irradiating ultraviolet rays after the first and fifth steps, and preferably, 20 to 70 minutes of ultraviolet rays until the polymerization rate of the lens forming composition is 90% or more. You can investigate.
상기 자외선 조사는 상기 제1박막 및 상기 제2박막을 형성하기 위한 것으로서, 무산소 조건에서 수행될 수 있고, 바람직하게는 질소나 아르곤과 같은 불활성가스 조건 하에서 수행될 수 있다.The ultraviolet irradiation is for forming the first thin film and the second thin film, and may be performed under anoxic conditions, and preferably under inert gas conditions such as nitrogen or argon.
도 3을 참조하면, 렌즈 형성용 조성물을 하부주형에 도포하여 제1박막을 형성하는 제1단계를 제공할 수 있다. Referring to FIG. 3, a first step of forming a first thin film by applying a lens forming composition to a lower mold may be provided.
상기 렌즈 형성용 조성물은 단량체(monomer) 혼합물 100중량부 당 스티렌(styrene) 1 내지 7중량부, 교차결합제(crosslinking agent) 0.1 내지 3중량부, 및 개시제(initiator) 0.1 내지 0.5 중량부를 포함할 수 있고, 바람직하게는, 상기 단량체 혼합물 100중량부 당 styrene 1 내지 7중량부를 공중합할 수 있고, 교차결합제 0.3중량부, 개시제 0.1중량부를 각각 첨가할 수 있다. The lens forming composition may include 1 to 7 parts by weight of styrene, 0.1 to 3 parts by weight of a crosslinking agent, and 0.1 to 0.5 parts by weight of an initiator per 100 parts by weight of the monomer mixture. Preferably, 1 to 7 parts by weight of styrene may be copolymerized per 100 parts by weight of the monomer mixture, and 0.3 parts by weight of crosslinking agent and 0.1 parts by weight of initiator may be added, respectively.
상기 단량체로서 폴리에스테르 재료를 사용하는 것이 바람직하다. 안과용 렌즈를 제조하기 위한 폴리에스테르 재료의 사용에 관해서는 많은 미국 특허가 이미 개시하고 있다. 그러한 문헌의 예로는 미국 특허 제3,391,224호, 제3,513,224호 및 공개된 PCT 출원 WO 93/21010 이 있다. 특허 제3,391,224호는 안과용 렌즈를 제조하는 데 사용할 수 있는 열경화성 제품을 제조하기 위해 폴리에스테르를 5 내지 20 중량%의 메틸메타크릴레이트 및 5 중량% 미만의 스티렌과 배합시킨 조성물을 제시하고 있다. 특허 제3,513,224호는 푸마르 산을 트리에틸렌글리콜 및 2,2-디메틸-1,3-프로판디올(또는 네오펜틸 글리콜로서 공지됨)과 반응시켜 형성된 70 내지 75 중량%의 특정 불포화 폴리에스테르를 약 12 내지 18 중량%의 스티렌 및 8 내지 12 중량%의 에틸렌 글리콜 디메타크릴레이트와 배합시킨 조성물을 제시하고 있다. 스티렌은 굴절률을 약 1.52로 증가시키며, 에틸렌 글리콜 디메타크릴레이트는 중합체의 파쇄도를 감소시킨다.It is preferable to use a polyester material as said monomer. Many US patents have already been disclosed regarding the use of polyester materials to make ophthalmic lenses. Examples of such documents are US Pat. Nos. 3,391,224, 3,513,224 and published PCT applications WO 93/21010. Patent 3,391,224 discloses a composition in which a polyester is blended with 5-20% by weight of methyl methacrylate and less than 5% by weight of styrene to produce a thermoset product that can be used to make ophthalmic lenses. Patent 3,513,224 discloses about 12 to 70 to 75% by weight of specific unsaturated polyesters formed by reacting fumaric acid with triethylene glycol and 2,2-dimethyl-1,3-propanediol (or known as neopentyl glycol). A composition is blended with from 18 to 18 weight percent styrene and from 8 to 12 weight percent ethylene glycol dimethacrylate. Styrene increases the refractive index to about 1.52, and ethylene glycol dimethacrylate reduces the degree of fracture of the polymer.
상기 교차결합제는 자외선 조사시 렌즈 형성용 조성물 중에 단량체 혼합물이 교차결합하며 상기 제1박막 및 상기 제2박막을 형성하는데 기여하며, 상기 교차결합제가 0.1중량부 미만으로 포함될 경우 결합제로서의 효과가 미미할 수 있고, 3중량부를 초과하는 경우 콘택트렌즈의 탄성 및 함수율을 저하시킬 수 있다.The crosslinking agent cross-links the monomer mixture in the composition for forming the lens upon UV irradiation and contributes to the formation of the first thin film and the second thin film, and when the crosslinking agent is included in less than 0.1 part by weight, the effect as a binder may be insignificant. If the content exceeds 3 parts by weight, the elasticity and moisture content of the contact lens may be reduced.
상기 제1박막은 고분자 중합을 개시하지 않은 형태인 것이 바람직하다. 상기 제1박막은 렌즈 형성용 조성물이 도포된 형태일 수 있고, 하기 기술하는 바와 같이 상기 제5단계에서 상기 고분자 형성용 조성물이 도포된 상부주형에 상기 제1박막이 부착된 하부주형을 적층한 후 중합을 개시하는 것이 바람직히다.It is preferable that the said 1st thin film is a form which does not start polymer polymerization. The first thin film may have a form in which the lens forming composition is coated, and as described below, the lower mold having the first thin film attached to the upper mold coated with the polymer forming composition is laminated in the fifth step. It is preferable to start the post-polymerization.
도 4를 참조하면, 청색광 차단 박막을 상부주형에 부착시키는 제2단계 및 상기 청색광 차단 박막을 상기 제1박막에 접합시키는 제3단계를 제공할 수 있다.Referring to FIG. 4, a second step of attaching the blue light blocking thin film to the upper mold and a third step of bonding the blue light blocking thin film to the first thin film may be provided.
상기 청색광 차단 박막은 시신경에 강한 자극을 주는 380㎚ 내지 520㎚의 파장의 투과를 차단할 수 있고, 상기 청색광 차단 박막의 두께는 100㎚ 내지 50㎛ 사이에서 콘택트렌즈의 굴절률에 따라 조절될 수 있다. 상기 청색광 차단 박막의 두께가 100㎚ 미만인 경우 제조 공정의 경제성이 문제될 수 있고, 50㎛ 초과인 경우 콘택트렌즈가 팽창하게 되어 굴절률이 목적하는 바와 상이한 콘택트렌즈가 제조되는 결과가 발생할 수 있다.The blue light blocking thin film may block transmission of a wavelength of 380 nm to 520 nm which gives strong stimulation to the optic nerve, and the thickness of the blue light blocking thin film may be adjusted according to the refractive index of the contact lens between 100 nm and 50 μm. If the thickness of the blue light blocking thin film is less than 100 nm, the economical efficiency of the manufacturing process may be a problem. If the thickness of the blue light blocking thin film is greater than 50 μm, the contact lens may expand, resulting in a contact lens having a different refractive index than that of the intended manufacturing process.
상기 청색광 차단 박막은 홍채 부위보다 넓은 부위에 형성될 수 있고, 상기 청색광 차단 콘택트렌즈의 중심에서 상기 청색광 차단 박막까지의 거리가 2 내지 10㎜일 수 있다. 상기 청색광 차단 박막까지의 거리가 2㎜ 미만인 경우 중앙의 투명한 부위를 가려 시야를 방해할 수 있고, 10㎜를 초과하는 경우 홍채 부위보다 지나치게 넓게 되어 청색광 차단 기능을 충분히 발휘하기 어려울 수 있다.The blue light blocking thin film may be formed at a wider area than the iris area, and the distance from the center of the blue light blocking contact lens to the blue light blocking thin film may be 2 to 10 mm. When the distance to the blue light blocking thin film is less than 2 mm, it may obstruct the visual field by covering a transparent part in the center, and when it exceeds 10 mm, the blue light blocking thin film may be too wider than the iris area, and thus, it may be difficult to fully exhibit the blue light blocking function.
상기 청색광 차단 박막은 폴리스티렌(polystyrene), 폴리에틸렌(polyethylene), 폴리프로필렌(polypropylene), 및 폴리비닐클로라이드(polyvinylchloride)로 이루어진 군에서 선택된 어느 하나 또는 이들의 조합을 포함하는 박막에 청색광 차단 색소를 착색시켜 형성될 수 있다.The blue light blocking thin film may be colored with a blue light blocking pigment on a thin film including any one or a combination thereof selected from the group consisting of polystyrene, polyethylene, polypropylene, and polyvinylchloride. Can be formed.
구체적으로, 상기 청색광 차단 색소는 BPI 필터 비전 450, BPI 다이아몬드 염료 500, 또는 Iron Oxides(Red) 21cfr No.73.3125 를 사용할 수 있고, 폴리스티렌, 폴리에틸렌, 폴리프로필렌, 및 폴리비닐클로라이드로 이루어진 군에서 선택된 어느 하나 또는 이들의 조합을 포함하는 박막을 일정 기간 동안 상기 청색광 차단 색소가 포함된 염료 용액을 포함한 가열된 색조 단지 내에 침지시킴으로써 상기 청색광 차단 박막을 형성할 수 있다.Specifically, the blue light blocking pigment may be BPI filter vision 450, BPI diamond dye 500, or Iron Oxides (Red) 21cfr No.73.3125, any one selected from the group consisting of polystyrene, polyethylene, polypropylene, and polyvinyl chloride. The blue light blocking thin film may be formed by immersing a thin film including one or a combination thereof in a heated color complex including a dye solution containing the blue light blocking dye for a period of time.
또한, 상기 청색광 차단 박막은 광학존(optical zone, OZ)이 제거된 형태로 제조될 수 있다. 상기 광학존은 사람의 홍채의 중심부위인 눈동자라고 지칭하는 부분의 동그란 영역을 가리키며, 상기 광학존은 상기 청색광 차단 박막의 중심에서 거리가 2㎜ 내지 10㎜일 수 있고, 형태는 특별히 한정되지 않으나, 눈동자 형태와 유사하게 원형 또는 타원형인 것이 바람직하다.In addition, the blue light blocking thin film may be manufactured in a form in which an optical zone (OZ) is removed. The optical zone refers to a circular region of a portion called the pupil that is on the center of the human iris, the optical zone may be a distance of 2mm to 10mm from the center of the blue light blocking thin film, the shape is not particularly limited, It is preferred to be circular or elliptical, similar to the pupil form.
도 5를 참조하면, 상기 렌즈 형성용 조성물을 상부주형에 도포하는 제4단계 및 상기 제1박막이 부착된 하부주형을 상기 제4단계의 상부주형에 적층하고 렌즈 형성용 조성물을 중합하여 제2박막을 형성하는 제5단계를 제공할 수 있다.Referring to FIG. 5, a fourth step of applying the composition for forming a lens to an upper mold and a lower mold with the first thin film attached to the upper mold of the fourth step, and polymerizing the lens forming composition to form a second A fifth step of forming a thin film may be provided.
상기 제4단계에서 사용된 렌즈 형성용 조성물은 상기 제1단계에서 사용된 상기 렌즈 형성용 조성물과 동일한 것을 사용할 수 있으며, 조성물의 종류 및 함량은 상기 기술한 바와 동일하다.The lens forming composition used in the fourth step may be the same as the lens forming composition used in the first step, and the type and content of the composition are the same as described above.
또한, 상기 제1박막에 상기 청색광 차단 박막이 부착된 상기 하부주형을 상기 상부주형에 적층하여 상기 제4단계에서 도포된 상기 렌즈 형성용 조성물을 중합시킴으로써, 상기 청색광 차단 박막이 콘택트 렌즈 내부에 함입된 형태로 제2박막이 제조될 수 있고, 상기 제2박막의 형태는 도 6에서 도시한 바와 같다.The blue light blocking thin film is embedded in the contact lens by stacking the lower mold having the blue light blocking thin film attached to the first thin film on the upper mold to polymerize the lens forming composition applied in the fourth step. The second thin film may be manufactured in the form of a mold, and the shape of the second thin film is as shown in FIG. 6.
구체적으로, 상기 하부주형을 상기 상부주형에 적층하여 상기 제1박막 및 상기 제2박막이 상호 맞닿아 있는 부분에서 고분자의 중합 및 결합이 이루어지고, 고분자의 점성이 증가하면서 중합반응이 진행됨으로써 상기 렌즈 형성용 조성물 및 상기 제1박막이 하나의 제2박막을 형성할 수 있다.Specifically, the lower mold is laminated on the upper mold to polymerize and bond the polymer at a portion where the first thin film and the second thin film are in contact with each other, and the polymerization reaction proceeds while the viscosity of the polymer increases. The composition for forming a lens and the first thin film may form one second thin film.
본 발명은 또한, 상기 제5단계 이후 상부주형을 이탈시키고 절삭선반을 이용하여 렌즈 표면을 가공하는 단계를 포함하는 청색광 차단부가 렌즈 내부에 함입된 콘택트렌즈의 제조방법을 제공할 수 있다. 상기 절삭선반을 이용하여 콘택트렌즈 표면을 가공할 수 있으며, 상기 절삭선반으로 가공한 부위는 전면 표면 연마와 가장자리 연마를 통하여 매끄럽게 형성한 후에 하부주형에서 이탈시킴으로써 도 1 및 도 2에 도시된 바와 같이 청색광 차단부가 렌즈 내부에 함입된 콘택트렌즈를 형성할 수 있다.The present invention may also provide a method for manufacturing a contact lens in which a blue light blocking part is embedded in the lens, including the step of leaving the upper mold after the fifth step and processing the lens surface by using a cutting lathe. The surface of the contact lens can be processed using the cutting lathe, and the portion processed with the cutting lathe is smoothly formed through the front surface grinding and the edge grinding, and then separated from the lower mold, as shown in FIGS. 1 and 2. The blue light blocking unit may form a contact lens embedded in the lens.
본 발명은 또한 상기 제조방법에 의해서 제조된 청색광 차단부가 렌즈 내부에 함입된 컨택트렌즈를 제공할 수 있다. The present invention can also provide a contact lens in which the blue light blocking unit manufactured by the manufacturing method is embedded in the lens.
도 1은 본 발명의 일 실시예에 따라 제조된 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 단면을, 도 2는 본 발명의 일 실시예에 따라 제조된 청색광 차단부가 내부에 함입된 청색광 차단 콘택트 렌즈의 전면을 각각 도시한 것이다.1 is a cross-sectional view of a blue light blocking contact lens having a blue light blocking part manufactured according to an embodiment of the present invention, and FIG. 2 is a blue light blocking part containing a blue light blocking part manufactured according to an embodiment of the present invention. The front side of a contact lens is shown, respectively.
상기 청색광 차단부는 두께가 100㎚ 내지 50㎛일 수 있다. 상기 청색광 차단 박막의 두께가 100㎚ 미만인 경우 제조가 어려워 제조 공정의 경제성이 문제될 수 있고, 50㎛ 초과인 경우 굴절률이 목적하는 바와 상이한 결과가 발생할 수 있다.The blue light blocking unit may have a thickness of 100 nm to 50 μm. When the thickness of the blue light blocking thin film is less than 100 nm, it may be difficult to manufacture, and thus the economics of the manufacturing process may be a problem.
상기 청색광 차단 콘택트렌즈의 중심에서 상기 청색광 차단부까지의 거리가 2㎜ 내지 10㎜일 수 있다. 상기 청색광 차단 박막까지의 거리가 2㎜ 미만인 경우 중앙의 투명한 부위를 가려 시야를 방해할 수 있고, 10㎜를 초과하는 경우 홍채 부위보다 지나치게 넓게 되어 청색광 차단 기능을 충분히 발휘하기 어려울 수 있다.The distance from the center of the blue light blocking contact lens to the blue light blocking part may be 2 mm to 10 mm. When the distance to the blue light blocking thin film is less than 2 mm, it may obstruct the visual field by covering a transparent part in the center, and when it exceeds 10 mm, the blue light blocking thin film may be too wider than the iris area, and thus, it may be difficult to fully exhibit the blue light blocking function.
본 발명의 범위는 후술하는 특허청구범위에 의해 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 균등 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.
이상과 같이, 본 발명은 청색광 차단 박막을 미리 제조함으로써 제조시 색조부가 유선형의 주형 가장자리 부위에 뭉치는 현상을 억제할 수 있고, 청색광 차단 박막이 렌즈 내부에 함입되도록 제조함으로써 렌즈 착용시 청색광 차단 박막이 안구에 직접 닿지 않아 착용시 안구에 무리를 주지 않고 편안함을 느낄 수 있게 한다는 점에서 산업상 이용이 매우 유용하다고 할 수 있다. As described above, the present invention can suppress the phenomenon in which the color tone portion agglomerates in the streamlined mold edge part by manufacturing the blue light blocking thin film in advance, and the blue light blocking thin film when the lens is worn by manufacturing the blue light blocking thin film to be embedded in the lens. It can be said that the industrial use is very useful in that it does not directly touch the eye so that the user can feel comfort without burdening the eye.
Claims (7)
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| KR10-2015-0061219 | 2015-04-30 | ||
| KR1020150061219A KR20160129305A (en) | 2015-04-30 | 2015-04-30 | Manufacturing method for contact lenses blocking blue light and contact lenses blocking blue light made thereof |
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| WO2016175619A1 true WO2016175619A1 (en) | 2016-11-03 |
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| PCT/KR2016/004560 Ceased WO2016175619A1 (en) | 2015-04-30 | 2016-04-29 | Method for manufacturing blue light-blocking contact lens, and blue light-blocking contact lens manufactured by manufacturing method |
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| KR (1) | KR20160129305A (en) |
| WO (1) | WO2016175619A1 (en) |
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| US10935695B2 (en) | 2018-03-02 | 2021-03-02 | Johnson & Johnson Vision Care, Inc. | Polymerizable absorbers of UV and high energy visible light |
| US11072137B2 (en) | 2018-10-15 | 2021-07-27 | Argos Vision Inc. | Methods of forming contact lenses to reduce the transmittance of light |
| CN113717617A (en) * | 2021-08-31 | 2021-11-30 | 太湖金张科技股份有限公司 | Blue-light-resistant coating for micro coating |
| US11543683B2 (en) | 2019-08-30 | 2023-01-03 | Johnson & Johnson Vision Care, Inc. | Multifocal contact lens displaying improved vision attributes |
| US11958824B2 (en) | 2019-06-28 | 2024-04-16 | Johnson & Johnson Vision Care, Inc. | Photostable mimics of macular pigment |
| US11993037B1 (en) | 2018-03-02 | 2024-05-28 | Johnson & Johnson Vision Care, Inc. | Contact lens displaying improved vision attributes |
| US12486403B2 (en) | 2018-03-02 | 2025-12-02 | Johnson & Johnson Vision Care, Inc. | Polymerizable absorbers of UV and high energy visible light |
| US12486348B2 (en) | 2019-08-30 | 2025-12-02 | Johnson & Johnson Vision Care, Inc. | Contact lens displaying improved vision attributes |
| US12509428B2 (en) | 2019-06-28 | 2025-12-30 | Johnson & Johnson Vision Care, Inc. | Polymerizable fused tricyclic compounds as absorbers of UV and visible light |
| US12534623B2 (en) | 2022-09-30 | 2026-01-27 | Johnson & Johnson Vision Care, Inc. | Contact lens with improved tear film optical quality |
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| KR102079998B1 (en) * | 2019-07-09 | 2020-02-21 | 주식회사 인터로조 | The Method for Contact Lens Blocking Blue Light and Contact Lens Blocking Blue Light |
| US12055797B2 (en) * | 2019-10-31 | 2024-08-06 | Menicon Singapore Pte Ltd. | Contact lens with selective wavelength transmittance |
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| KR200406814Y1 (en) * | 2005-11-02 | 2006-01-24 | 이인원 | Contact Lenses with UV Protection |
| KR20090036122A (en) * | 2006-06-29 | 2009-04-13 | 존슨 앤드 존슨 비젼 케어, 인코포레이티드 | Contact lenses with light blocking rings |
| WO2009044853A1 (en) * | 2007-10-04 | 2009-04-09 | Menicon Co., Ltd. | Colorant for ocular lens, material for ocular lens, process for producing ocular lens, and ocular lens |
| KR20150011390A (en) * | 2012-06-27 | 2015-01-30 | 가부시키가이샤 메니콘네쿠토 | Colored contact lens and process for producing same |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12486403B2 (en) | 2018-03-02 | 2025-12-02 | Johnson & Johnson Vision Care, Inc. | Polymerizable absorbers of UV and high energy visible light |
| US10935695B2 (en) | 2018-03-02 | 2021-03-02 | Johnson & Johnson Vision Care, Inc. | Polymerizable absorbers of UV and high energy visible light |
| US11820899B2 (en) | 2018-03-02 | 2023-11-21 | Johnson & Johnson Vision Care, Inc. | Polymerizable absorbers of UV and high energy visible light |
| US11993037B1 (en) | 2018-03-02 | 2024-05-28 | Johnson & Johnson Vision Care, Inc. | Contact lens displaying improved vision attributes |
| US11072137B2 (en) | 2018-10-15 | 2021-07-27 | Argos Vision Inc. | Methods of forming contact lenses to reduce the transmittance of light |
| US12509428B2 (en) | 2019-06-28 | 2025-12-30 | Johnson & Johnson Vision Care, Inc. | Polymerizable fused tricyclic compounds as absorbers of UV and visible light |
| US11958824B2 (en) | 2019-06-28 | 2024-04-16 | Johnson & Johnson Vision Care, Inc. | Photostable mimics of macular pigment |
| US12497379B2 (en) | 2019-06-28 | 2025-12-16 | Johnson & Johnson Vision Care, Inc. | Photostable mimics of macular pigment |
| US11543683B2 (en) | 2019-08-30 | 2023-01-03 | Johnson & Johnson Vision Care, Inc. | Multifocal contact lens displaying improved vision attributes |
| US12486348B2 (en) | 2019-08-30 | 2025-12-02 | Johnson & Johnson Vision Care, Inc. | Contact lens displaying improved vision attributes |
| US12481173B2 (en) | 2019-08-30 | 2025-11-25 | Johnson & Johnson Vision Care, Inc. | Multifocal contact lens displaying improved vision attributes |
| CN113717617A (en) * | 2021-08-31 | 2021-11-30 | 太湖金张科技股份有限公司 | Blue-light-resistant coating for micro coating |
| US12534623B2 (en) | 2022-09-30 | 2026-01-27 | Johnson & Johnson Vision Care, Inc. | Contact lens with improved tear film optical quality |
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|---|---|
| KR20160129305A (en) | 2016-11-09 |
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