JP4787884B2 - コンタクトレンズの製造方法 - Google Patents
コンタクトレンズの製造方法 Download PDFInfo
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- JP4787884B2 JP4787884B2 JP2008555990A JP2008555990A JP4787884B2 JP 4787884 B2 JP4787884 B2 JP 4787884B2 JP 2008555990 A JP2008555990 A JP 2008555990A JP 2008555990 A JP2008555990 A JP 2008555990A JP 4787884 B2 JP4787884 B2 JP 4787884B2
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- mold
- contact lens
- polymerizable material
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- 238000004519 manufacturing process Methods 0.000 title claims description 42
- 238000000465 moulding Methods 0.000 claims description 68
- 239000000463 material Substances 0.000 claims description 67
- 238000006116 polymerization reaction Methods 0.000 claims description 34
- 230000005484 gravity Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 23
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920005992 thermoplastic resin Polymers 0.000 claims description 3
- 239000000178 monomer Substances 0.000 description 40
- 239000007788 liquid Substances 0.000 description 27
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 230000005499 meniscus Effects 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- -1 polypropylene Polymers 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 230000000379 polymerizing effect Effects 0.000 description 6
- 238000012719 thermal polymerization Methods 0.000 description 6
- 239000011800 void material Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003505 polymerization initiator Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229930182556 Polyacetal Natural products 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 125000003011 styrenyl group Chemical class [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- 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
- B29D11/00115—Production of contact lenses made by rotational casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
- B29C41/047—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the mould cavity lying totally outside the axis, e.g. toroidal moulds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Eyeglasses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
12 本体部
16 ワークホルダ
18 ワーク
20 開口部
26 内底面
28 アルミシール
30 成形キャビティ
32 重合性モノマー
48 駆動軸部材
49 中心軸
62 空隙
64 液面
66 レンズブランク
72 コンタクトレンズ
Claims (8)
- 成形型の成形キャビティ内に重合性材料を注入して重合せしめることによりレンズブランクを成形し、該レンズブランクを切削加工することによって目的とするコンタクトレンズを得るコンタクトレンズの製造方法において、
前記重合性材料を前記成形キャビティ内に自由表面を有する状態で注入した後に、鉛直方向に延びる回転中心軸に対して前記成形型の底面を外側に向けた状態で該成形型を該回転中心軸回りに回転せしめつつ重合成形することによって前記レンズブランクを成形することを特徴とするコンタクトレンズの製造方法。 - 複数の前記成形型を用いて、それぞれの前記成形キャビティ内に前記重合性材料を注入して、それら複数の成形型を同一の前記回転中心軸回りで同時に回転せしめつつ重合成形する請求項1に記載のコンタクトレンズの製造方法。
- 前記成形型として樹脂、ガラス、金属の何れかで形成されたものを用いる請求項1又は2に記載のコンタクトレンズの製造方法。
- 前記成形型として一方に開口する開口部を有する成形型を用いて、前記重合性材料を該開口部から注入し、覆蓋部材によって前記成形キャビティ内に空隙を有する状態で該開口部を密封状態に覆蓋した後に該重合性材料を重合成形する請求項1乃至3の何れか一項に記載のコンタクトレンズの製造方法。
- 前記成形型として熱可塑性樹脂で形成されたものを用いると共に、該成形型の前記開口部に前記覆蓋部材としてのアルミニウム箔を熱溶着することによって該開口部を密封状態に覆蓋する請求項4に記載のコンタクトレンズの製造方法。
- 前記重合性材料を脱酸素雰囲気中で重合成形する請求項1乃至5の何れか一項に記載のコンタクトレンズの製造方法。
- 前記成形型に対して前記重合性材料に及ぼされる重力よりも遠心力が大きくなる回転速度を与えると共に、該成形型を該重合性材料に及ぼされる重力と遠心力との合力方向に傾斜せしめた状態で回転せしめる請求項1乃至6の何れか一項に記載のコンタクトレンズの製造方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2007/051682 WO2008093421A1 (ja) | 2007-02-01 | 2007-02-01 | コンタクトレンズの製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2008093421A1 JPWO2008093421A1 (ja) | 2010-05-20 |
JP4787884B2 true JP4787884B2 (ja) | 2011-10-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008555990A Active JP4787884B2 (ja) | 2007-02-01 | 2007-02-01 | コンタクトレンズの製造方法 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP4787884B2 (ja) |
WO (1) | WO2008093421A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20240056733A (ko) * | 2021-12-24 | 2024-04-30 | 미쓰이 가가쿠 가부시키가이샤 | 광학 부재의 제조 방법 및 경화물 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62111707A (ja) * | 1985-11-11 | 1987-05-22 | Fuji Rubber Kk | 照光表示部の製造方法 |
JP2000343539A (ja) * | 1999-06-08 | 2000-12-12 | Menicon Co Ltd | 多種材コンタクトレンズブランクの成形用型並びに多種材コンタクトレンズブランクの製造方法 |
JP2006171270A (ja) * | 2004-12-15 | 2006-06-29 | Hoya Corp | コンタクトレンズの製造方法 |
-
2007
- 2007-02-01 JP JP2008555990A patent/JP4787884B2/ja active Active
- 2007-02-01 WO PCT/JP2007/051682 patent/WO2008093421A1/ja active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62111707A (ja) * | 1985-11-11 | 1987-05-22 | Fuji Rubber Kk | 照光表示部の製造方法 |
JP2000343539A (ja) * | 1999-06-08 | 2000-12-12 | Menicon Co Ltd | 多種材コンタクトレンズブランクの成形用型並びに多種材コンタクトレンズブランクの製造方法 |
JP2006171270A (ja) * | 2004-12-15 | 2006-06-29 | Hoya Corp | コンタクトレンズの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008093421A1 (ja) | 2010-05-20 |
WO2008093421A1 (ja) | 2008-08-07 |
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