JPH0376213B2 - - Google Patents
Info
- Publication number
- JPH0376213B2 JPH0376213B2 JP58184274A JP18427483A JPH0376213B2 JP H0376213 B2 JPH0376213 B2 JP H0376213B2 JP 58184274 A JP58184274 A JP 58184274A JP 18427483 A JP18427483 A JP 18427483A JP H0376213 B2 JPH0376213 B2 JP H0376213B2
- Authority
- JP
- Japan
- Prior art keywords
- container
- mold
- shaped mold
- molding
- molds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 37
- 239000000178 monomer Substances 0.000 claims description 33
- 238000000465 moulding Methods 0.000 claims description 28
- 238000005520 cutting process Methods 0.000 claims description 17
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000002994 raw material Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 description 8
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- 239000003431 cross linking reagent Substances 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 1
- WYGWHHGCAGTUCH-UHFFFAOYSA-N 2-[(2-cyano-4-methylpentan-2-yl)diazenyl]-2,4-dimethylpentanenitrile Chemical compound CC(C)CC(C)(C#N)N=NC(C)(C#N)CC(C)C WYGWHHGCAGTUCH-UHFFFAOYSA-N 0.000 description 1
- WHNPOQXWAMXPTA-UHFFFAOYSA-N 3-methylbut-2-enamide Chemical compound CC(C)=CC(N)=O WHNPOQXWAMXPTA-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- LKEDKQWWISEKSW-UHFFFAOYSA-N nonyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCOC(=O)C(C)=C LKEDKQWWISEKSW-UHFFFAOYSA-N 0.000 description 1
- HMZGPNHSPWNGEP-UHFFFAOYSA-N octadecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)C(C)=C HMZGPNHSPWNGEP-UHFFFAOYSA-N 0.000 description 1
- GYDSPAVLTMAXHT-UHFFFAOYSA-N pentyl 2-methylprop-2-enoate Chemical compound CCCCCOC(=O)C(C)=C GYDSPAVLTMAXHT-UHFFFAOYSA-N 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000379 polypropylene carbonate Polymers 0.000 description 1
- FBCQUCJYYPMKRO-UHFFFAOYSA-N prop-2-enyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCC=C FBCQUCJYYPMKRO-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
Description
【発明の詳細な説明】
本発明は、コンタクトレンズを、凹面を成形加
工し、凸面を機械加工して、製造する方法と、こ
の方法において使用する成形型に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a contact lens by molding the concave surface and machining the convex surface, and a mold used in this method.
従来、この種のコンタクトレンズの製造法は、
原料のモノマー液を入れる凹面型とこれに嵌込む
凹面成形用の凸面型からなる成形型を用い、凹面
型とこれに嵌込んだ凸面型の間にモノマー液を充
填し、成形型内のモノマー液を重合してレンズ素
材に成形し、凹面型を取外して、レンズ素材が接
着している凸面型をレンズ切削機の主軸に取付
け、主軸を回転する一方、切削工具をレンズ素材
の凸面に当接して、レンズ素材の凸面を切削加工
する。ところが、切削加工の際、レンズ素材は、
その凹面が凸面型の凹面成形用凸面に接着してい
るだけであるので、固定が充分ではない。従つ
て、そのために、レンズ素材の凸面が所望の通り
に切削加工されないことがある。 Traditionally, the manufacturing method for this type of contact lenses is
Using a mold consisting of a concave mold to hold the raw material monomer liquid and a convex mold to fit into the concave mold, the monomer liquid is filled between the concave mold and the convex mold fitted into it, and the monomer in the mold is The liquid is polymerized and formed into a lens material, the concave mold is removed, and the convex mold with the lens material adhered to it is attached to the main shaft of a lens cutting machine, and while the main shaft is rotated, the cutting tool is brought into contact with the convex surface of the lens material. In contact, the convex surface of the lens material is cut. However, during cutting, the lens material
Since the concave surface is simply adhered to the convex surface for concave molding of the convex mold, the fixation is not sufficient. Therefore, the convex surface of the lens material may not be cut as desired.
また、他の従来の製造法は、内底面を凹面成形
用の凸面に形成したカツプ状の成形型にモノマー
液を入れ、成形型内のモノマー液をその液面を空
気に晒した状態で重合してレンズ素材に成形し、
レンズ素材が嵌合している成形型をレンズ切削機
の主軸に取付け、主軸を回転する一方、切削工具
を成形型の開口端側に当接して、レンズ素材の凸
面を成形型と一緒に切削加工する。ところが、重
合の際、モノマー液はカツプ状の成形型に入つて
いるだけであるので、重合収縮率の大きいモノマ
ー液の場合は、レンズ素材に内部歪や空隙が生
じ、レンズ素材が所望の通りに成形されないこと
がある。 In addition, in another conventional manufacturing method, a monomer liquid is poured into a cup-shaped mold with a convex inner bottom for molding, and the monomer liquid in the mold is polymerized with the liquid surface exposed to air. and molded into lens material,
The mold into which the lens material is fitted is attached to the main shaft of a lens cutting machine, and while the main shaft is rotated, the cutting tool is brought into contact with the open end of the mold, and the convex surface of the lens material is cut together with the mold. Process. However, during polymerization, the monomer liquid is simply placed in a cup-shaped mold, so if the monomer liquid has a high polymerization shrinkage rate, internal distortions and voids will occur in the lens material, and the lens material will not work as desired. may not be formed.
本発明の目的は、上記のような従来の課題を解
決することである。 An object of the present invention is to solve the conventional problems as described above.
本発明は、凹面を成形加工し、凸面を機械加工
して、コンタクトレンズを製造する方法におい
て、
底の内面を凹面成形用の凸面に形成した容器状
型とこれに嵌込んだ栓状型の間に原料のモノマー
液を充填して、栓状型に貫設した液溜通路にもモ
ノマー液を行き渡らせ、両型間のモノマー液を容
器状型の凹面成形用凸面側から重合してレンズ素
材に成形し、
両型を、それらの間に凹面が成形されたレンズ
素材が入つているままの状態で、レンズ切削機の
主軸に取付けて、切削工具でレンズ素材の凸面を
型と一緒に切削加工することを特徴とするコンタ
クトレンズの製造方である。 The present invention provides a method for manufacturing contact lenses by molding a concave surface and machining a convex surface, which includes a container-shaped mold whose bottom inner surface is formed into a convex surface for molding the concave surface, and a plug-shaped mold fitted into the container-shaped mold. A raw material monomer liquid is filled between the two molds, and the monomer liquid is spread through the liquid reservoir passage provided through the plug-shaped mold, and the monomer liquid between both molds is polymerized from the convex side for concave molding of the container-shaped mold to form a lens. Both molds, with the lens material with a concave surface molded between them, are attached to the main shaft of a lens cutting machine, and a cutting tool is used to cut the convex surface of the lens material together with the mold. This is a method of manufacturing contact lenses characterized by cutting.
本発明の製造法においては、レンズ素材を成形
するに当たり、原料のモノマー液を、底の内面を
凹面成形用の凸面に形成した容器状型とこれに嵌
込んだ液溜通路付の栓状型の間に充填し、容器状
型の凹面成形用凸面側即ち栓状型の液溜通路とは
反対側から重合するので、重合収縮率の大きいモ
ノマー液の場合にも、レンズ素材に内部歪や空〓
が生じ難く、レンズ素材が所望の通りに成形され
る。 In the manufacturing method of the present invention, when molding the lens material, the raw monomer liquid is mixed into a container-shaped mold whose bottom inner surface is convex for molding a concave surface, and a plug-shaped mold with a liquid reservoir passage fitted into the container-shaped mold. Since polymerization occurs from the convex side of the container-shaped mold for concave molding, that is, the side opposite to the liquid reservoir passage of the plug-shaped mold, even if the monomer liquid has a large polymerization shrinkage rate, there will be no internal distortion or distortion in the lens material. Sky =
The lens material is molded as desired.
また、レンズ素材の凸面を切削加工するに当た
り、レンズ素材が両型間に入つているままの状態
で行なうので、レンズ素材の固定が充分であり、
レンズ素材の凸面が所望の通りに切削加工され
る。 In addition, when cutting the convex surface of the lens material, the lens material is still inserted between both molds, so the lens material is sufficiently fixed.
The convex surface of the lens material is cut as desired.
また、本発明は、コンタクトレンズの原料のモ
ノマー液を入れる容器状型とこれに嵌込む栓状型
からなり、
容器状型の底の内面を凹面成形用の凸面に形成
し、栓状型の先端面と基端面の間に液溜通路を貫
設し、
両型を、それらの間に充填されたモノマー液を
容器状型の凹面成形用凸面側から重合する光線又
は熱に耐える合成樹脂であつて、両型の間に成形
されたレンズ素材の凸面と一緒に切削される合成
樹脂で、成形したことを特徴とするコンタクトレ
ンズ製造用成形型である。 In addition, the present invention comprises a container-shaped mold for holding a monomer liquid as a raw material for contact lenses and a plug-shaped mold to be fitted into the container-shaped mold, and the bottom inner surface of the container-shaped mold is formed into a convex surface for concave molding, and A liquid reservoir passage is provided between the distal end surface and the proximal end surface, and both molds are made of a synthetic resin that can withstand light or heat that polymerizes the monomer liquid filled between them from the convex surface side for concave molding of the container-shaped mold. This mold for manufacturing contact lenses is characterized in that it is molded from a synthetic resin that is cut together with the convex surface of the lens material molded between the two molds.
本発明の成形型は、本発明の製造法において使
用され、レンズ素材を所望の通りに成形すること
ができ、また、レンズ素材の凸面を所望の通りに
切削加工することができる。 The mold of the present invention is used in the manufacturing method of the present invention, and can mold the lens material as desired, and can cut the convex surface of the lens material as desired.
また、本発明の成形型は、合成樹脂の成形によ
つて安価に製作される。 Furthermore, the mold of the present invention can be manufactured at low cost by molding synthetic resin.
次に、本発明の実施例について説明する。 Next, examples of the present invention will be described.
本例の製造法において使用する使い捨ての成形
型の容器状型と栓状型はアクリル、ポリエチレ
ン、ポリプロピレン、ポリカーボネート等の合成
樹脂を射出成形して製作したものである。容器状
型１は、第１図に示すように、円筒状の周壁２の
下端に半球殻状の底３を連設し、底３の凸状内面
を研磨により鏡面仕上して凹面成形用凸面４に形
成している。栓状型５は、第１図と第２図に示す
ように、容器状型の周壁２内に嵌合する短丸軸状
の栓６の基端に周壁２の開口上端に当接するフラ
ンジ７を周設し、容器状型の凹面成形用凸面４に
対面する栓６の先端面を凹面成形用凸面４に沿つ
た凹面に形成し、栓６の先端面と基端面間の軸芯
位置に液溜通路８を貫設し、液溜通路８の基端を
逆錐状の大径部にして液溜口９に形成している。 The container-shaped and stopper-shaped disposable molds used in the manufacturing method of this example are manufactured by injection molding of synthetic resin such as acrylic, polyethylene, polypropylene, and polycarbonate. As shown in FIG. 1, the container-shaped mold 1 has a hemispherical shell-shaped bottom 3 connected to the lower end of a cylindrical peripheral wall 2, and the convex inner surface of the bottom 3 is polished to a mirror finish to form a convex surface for concave molding. It is formed into 4. As shown in FIGS. 1 and 2, the plug-shaped mold 5 has a flange 7 that abuts the upper end of the opening of the peripheral wall 2 at the base end of a plug 6 in the shape of a short round shaft that fits inside the peripheral wall 2 of the container-shaped mold. The distal end surface of the stopper 6 facing the convex surface 4 for forming a concave surface of the container-shaped mold is formed into a concave surface along the convex surface 4 for forming a concave surface. A liquid reservoir passage 8 is provided through the liquid reservoir passage 8, and the proximal end of the liquid reservoir passage 8 is formed into an inverted conical large diameter portion to form a liquid reservoir opening 9.
本例の製造法は、原料のモノマー液として、
オクタデシルメタクリレート 45重量部
Ｎ―ビニル―２―ピロリドン 45重量部
２―ヒドロキシエチルメタクリレート10重量部
アクリルメタクリレート（架橋剤） 0.4重量部
アゾビスイソブチロニトリル（重合開始剤）
0.2重量部
を混合した重合収縮率の大きいものを用いる。こ
のモノマー液は容器状型１内に滴下し、容器状型
１に栓状型５を嵌込んで栓状型のフランジ７を容
器状型の周壁２の開口上端に当接し、容器状型１
と栓状型５間の略等厚の成形空間にモノマー液を
充填して、栓状型の液溜通路８にもモノマー液を
行き渡らせ、液溜通路の液溜口９にモノマー液を
盛り上げさせる。成形空間のモノマー液中の気泡
は液溜通路８を経て上昇し排出される。次に、成
形空間のモノマー液に容器状型の底３側から紫外
線を照射し、成形空間のモノマー液を容器状型の
凹面成形用凸面４側から重合してレンズ素材に成
形する。成形空間のモノマー液は凹面成形用凸面
４側即ち下側から重合により収縮するが、成形空
間の上面に連通した液溜通路８のモノマー液が成
形空間に流下し、成形空間が常にモノマー液で満
されている。次に、凹面が成形されたレンズ素材
１０が入つている成形型１，５は、脱型すること
なくそのままの状態で、第３図に示すように、レ
ンズ切削機の主軸１１に取付け、主軸１１を回転
する一方、切削工具で、先ず、成形型１，５を液
溜通路８を横断する位置で切断し、次に、レンズ
素材１０の凸面を成形型１，５と一緒に切削加工
する。凸面が切削されたレンズ素材１０が入つて
いる容器状型１の底３側部分は、レンズ切削機の
主軸１１から取外してレンズ研磨機の主軸に同様
にして取付け、レンズ素材１０の凸面を研磨布等
で研磨加工する。機械加工の後、レンズ素材１０
は、脱型し、生理食塩水により膨潤させて、含水
性のソフトコンタクトレンズを得る。 In the production method of this example, the following monomer liquids are used: octadecyl methacrylate 45 parts by weight N-vinyl-2-pyrrolidone 45 parts by weight 2-hydroxyethyl methacrylate 10 parts by weight Acrylic methacrylate (crosslinking agent) 0.4 parts by weight azobisisobutyro Nitrile (polymerization initiator)
Use a material with a large polymerization shrinkage ratio mixed with 0.2 parts by weight. This monomer liquid is dripped into the container-shaped mold 1, a plug-shaped mold 5 is fitted into the container-shaped mold 1, and the flange 7 of the plug-shaped mold is brought into contact with the upper end of the opening of the peripheral wall 2 of the container-shaped mold.
The monomer liquid is filled into the molding space of approximately equal thickness between the plug-shaped mold 5 and the liquid reservoir passage 8 of the plug-shaped mold, and the monomer liquid is raised in the liquid reservoir opening 9 of the liquid reservoir passage. let Bubbles in the monomer liquid in the molding space rise through the liquid reservoir passage 8 and are discharged. Next, the monomer liquid in the molding space is irradiated with ultraviolet rays from the bottom 3 side of the container-shaped mold, and the monomer liquid in the molding space is polymerized from the concave molding convex surface 4 side of the container-shaped mold to form a lens material. The monomer liquid in the molding space contracts from the side of the convex molding surface 4, that is, from the bottom, due to polymerization, but the monomer liquid in the liquid reservoir passage 8 communicating with the upper surface of the molding space flows down into the molding space, so that the molding space is always filled with monomer liquid. It's filled. Next, the molds 1 and 5 containing the lens material 10 having a concave surface molded therein are mounted on the main shaft 11 of a lens cutting machine as shown in FIG. 3 without being demolded. 11, first cut the molds 1 and 5 at a position crossing the liquid reservoir passage 8 using a cutting tool, and then cut the convex surface of the lens material 10 together with the molds 1 and 5. . The bottom 3 side part of the container mold 1 containing the lens material 10 with its convex surface cut is removed from the main shaft 11 of the lens cutting machine and attached to the main shaft of a lens polishing machine in the same way, and the convex surface of the lens material 10 is polished. Polish with cloth, etc. After machining, lens material 10
is demolded and swollen with physiological saline to obtain a water-containing soft contact lens.
他の実施例の製造法においては、原料のモノマ
ー液として、
ｎ―ノニルメタクリレート 50重量部
Ｎ―ビニル―２―ピロリドン 40重量部
２―ヒドロキシエチルメタクリレート10重量部
アリルメタクリレート（架橋剤） 0.4重量部
アゾビスイソブチロニトリル（重合開始剤）
0.2重量部
を混合したものを用い、
又は、
ｎ―ペンチルメタクリレート 52重量部
ジメチルアクリルアミド 48重量部
トリメチロールプロパントリメタクリレート
（架橋剤） 1.0重量部
２，２―アゾビス―（２，４―ジメチルバレロ
ニトリル）（重合開始剤） 0.05重量部
を混合したものを用い、前例におけるのと同様に
して、ソフトコンタクトレンズを製造する。 In the manufacturing method of another example, the raw material monomer liquids are: n-nonyl methacrylate 50 parts by weight N-vinyl-2-pyrrolidone 40 parts by weight 2-hydroxyethyl methacrylate 10 parts by weight allyl methacrylate (crosslinking agent) 0.4 parts by weight Azobisisobutyronitrile (polymerization initiator)
0.2 parts by weight of n-pentyl methacrylate 52 parts by weight dimethylacrylamide 48 parts by weight Trimethylolpropane trimethacrylate (crosslinking agent) 1.0 parts by weight 2,2-azobis-(2,4-dimethylvaleronitrile) ) (Polymerization initiator) Using a mixture of 0.05 parts by weight, soft contact lenses are produced in the same manner as in the previous example.
上記の実施例の製造法においては、成形型１，
５内のモノマー液を重合させる際、光源強度が約
1.5〜3.5mw／cm2の紫外線ランプを容器状型１の
下方約20〜30cmの位置に配置し、波長が約280〜
450nmの紫外線を約２〜13時間照射しているが、
紫外線を照射する代りに、加熱してもよい。ま
た、モノマー液に、重合により成形した時にレン
ズ素材が軟質になるものを用いているが、メチル
メタクリレートやヒドロキシエチルメタクリレー
ト等を主成分とするモノマー液のように、重合に
より成形した時にレンズ素材が硬質になるものを
用いてもよい。 In the manufacturing method of the above embodiment, the mold 1,
When polymerizing the monomer liquid in 5, the light source intensity is approximately
A 1.5 to 3.5 mw/cm 2 ultraviolet lamp is placed about 20 to 30 cm below the container-shaped mold 1, and the wavelength is about 280 to
450nm ultraviolet rays are irradiated for about 2 to 13 hours,
Heating may be used instead of irradiating with ultraviolet light. In addition, monomer liquids that make the lens material soft when molded through polymerization are used, such as monomer liquids whose main components are methyl methacrylate or hydroxyethyl methacrylate, which make the lens material soft when molded through polymerization. A hard material may also be used.
第１図は本発明の実施例の製造法において使用
する成形型の縦断面図、第２図は同成形型の平面
図であり、第３図と第４図は同製造法の切削加工
工程の横断面図である。
１：容器状型、３：底、４：凹面成形用凸面、
５：栓状型、８：液溜通路、１０：レンズ素材、
１１：主軸、１２：切削工具、バイト。
FIG. 1 is a longitudinal cross-sectional view of a mold used in the manufacturing method of the embodiment of the present invention, FIG. 2 is a plan view of the same mold, and FIGS. 3 and 4 are cutting steps of the same manufacturing method. FIG. 1: Container-shaped mold, 3: Bottom, 4: Convex surface for concave molding,
5: plug-shaped type, 8: liquid reservoir passage, 10: lens material,
11: Spindle, 12: Cutting tool, bite.
Claims (1)
ンタクトレンズを製造する方法において、 底の内面を凹面成形用の凸面に形成した容器状
型とこれに嵌込んだ栓状型の間に原料のモノマー
液を充填して、栓状型に貫設した液溜通路にもモ
ノマー液を行き渡らせ、両型間のモノマー液を容
器状型の凹面成形用凸面側から重合してレンズ素
材に成形し、 両型を、それらの間に凹面が成形されたレンズ
素材が入つているままの状態で、レンズ切削機の
主軸に取付けて、切削工具でレンズ素材の凸面を
型と一緒に切削加工することを特徴とするコンタ
クトレンズの製造法。 ２ コンタクトレンズの原料のモノマー液を入れ
る容器状型とこれに嵌込む栓状型からなり、 容器状型の底の内面を凹面成形用の凸面に形成
し、栓状型の先端面と基端面の間に液溜通路を貫
設し、 両型を、それらの間に充填されたモノマー液を
容器状型の凹面成形用凸面側から重合する光線又
は熱に耐える合成樹脂であつて、両型の間に成形
されたレンズ素材の凸面と一緒に切削される合成
樹脂で、成形したことを特徴とするコンタクトレ
ンズ製造用成形型。[Claims] 1. A method for manufacturing contact lenses by molding a concave surface and machining a convex surface, comprising: a container-shaped mold whose bottom inner surface is formed into a convex surface for molding the concave surface; and a plug fitted into the container-shaped mold. The monomer liquid as a raw material is filled between the container-shaped molds, and the monomer liquid is spread through the liquid reservoir passage provided through the plug-shaped mold, and the monomer liquid between both molds is polymerized from the convex side of the container-shaped mold for concave molding. The two molds, with the lens material with the concave surface molded between them, are attached to the main shaft of a lens cutting machine, and the convex surface of the lens material is molded using a cutting tool. A contact lens manufacturing method characterized by cutting together with. 2 Consists of a container-shaped mold into which the monomer liquid used as raw material for contact lenses is placed, and a plug-shaped mold that is fitted into the container-shaped mold. A liquid reservoir passage is provided between the molds, and both molds are made of a synthetic resin that can withstand light or heat that polymerizes the monomer liquid filled between them from the convex side for molding the concave surface of the container-shaped mold. A mold for manufacturing a contact lens, characterized in that the mold is made of a synthetic resin that is cut together with the convex surface of a lens material molded between the contact lenses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18427483A JPS6073836A (en) | 1983-09-30 | 1983-09-30 | Manufacture of contact lens and mold for the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18427483A JPS6073836A (en) | 1983-09-30 | 1983-09-30 | Manufacture of contact lens and mold for the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6073836A JPS6073836A (en) | 1985-04-26 |
| JPH0376213B2 true JPH0376213B2 (en) | 1991-12-04 |
Family
ID=16150447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18427483A Granted JPS6073836A (en) | 1983-09-30 | 1983-09-30 | Manufacture of contact lens and mold for the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6073836A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6361225A (en) * | 1986-09-02 | 1988-03-17 | Toyo Contact Lens Co Ltd | Production of lens for eyes |
| JPS6391230A (en) * | 1986-10-03 | 1988-04-21 | Toyo Contact Lens Co Ltd | Manufacture of intraocular lens |
| US5137441A (en) * | 1990-10-30 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Mold assembly for making an ocular lens blank |
| JP3280786B2 (en) * | 1993-12-28 | 2002-05-13 | 株式会社メニコン | Contact lens material bonding jig |
| JP5128308B2 (en) * | 2008-02-20 | 2013-01-23 | Ｈｏｙａ株式会社 | Intraocular lens manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57608A (en) * | 1980-02-28 | 1982-01-05 | Medeikorunea | Method of manufacturing contact lens and contact lens manufactured thereby |
| JPS5798324A (en) * | 1980-10-23 | 1982-06-18 | Porimateitsuku Inbesutomento C | Manufacture of contact lens and die assembly used for manufacturing said contact lens |
-
1983
- 1983-09-30 JP JP18427483A patent/JPS6073836A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57608A (en) * | 1980-02-28 | 1982-01-05 | Medeikorunea | Method of manufacturing contact lens and contact lens manufactured thereby |
| JPS5798324A (en) * | 1980-10-23 | 1982-06-18 | Porimateitsuku Inbesutomento C | Manufacture of contact lens and die assembly used for manufacturing said contact lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6073836A (en) | 1985-04-26 |
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