AU569089B2 - Improvements relating to molding hydrosel contact lenses - Google Patents
Improvements relating to molding hydrosel contact lensesInfo
- Publication number
- AU569089B2 AU569089B2 AU29663/84A AU2966384A AU569089B2 AU 569089 B2 AU569089 B2 AU 569089B2 AU 29663/84 A AU29663/84 A AU 29663/84A AU 2966384 A AU2966384 A AU 2966384A AU 569089 B2 AU569089 B2 AU 569089B2
- Authority
- AU
- Australia
- Prior art keywords
- mold
- annular portion
- optical
- contact lens
- edge
- 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.)
- Ceased
Links
- 238000000465 moulding Methods 0.000 title claims description 33
- 230000003287 optical effect Effects 0.000 claims description 62
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 239000000178 monomer Substances 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 19
- 239000004033 plastic Substances 0.000 claims description 19
- 229920003023 plastic Polymers 0.000 claims description 19
- KKEBXNMGHUCPEZ-UHFFFAOYSA-N 4-phenyl-1-(2-sulfanylethyl)imidazolidin-2-one Chemical compound N1C(=O)N(CCS)CC1C1=CC=CC=C1 KKEBXNMGHUCPEZ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000017 hydrogel Substances 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 9
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 5
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 238000004073 vulcanization Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 3
- 230000003213 activating effect Effects 0.000 claims 1
- 239000000470 constituent Substances 0.000 claims 1
- 238000005498 polishing Methods 0.000 description 13
- -1 polypropylene Polymers 0.000 description 13
- 239000000463 material Substances 0.000 description 10
- 239000002023 wood Substances 0.000 description 9
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 229920001477 hydrophilic polymer Polymers 0.000 description 4
- 208000001491 myopia Diseases 0.000 description 4
- 230000004379 myopia Effects 0.000 description 4
- 241000894007 species Species 0.000 description 4
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 description 3
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 210000004087 cornea Anatomy 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- OLQFXOWPTQTLDP-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCOCCO OLQFXOWPTQTLDP-UHFFFAOYSA-N 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 2
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 description 2
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 125000004432 carbon atom Chemical group C* 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- RWXMAAYKJDQVTF-UHFFFAOYSA-N 2-(2-hydroxyethoxy)ethyl prop-2-enoate Chemical compound OCCOCCOC(=O)C=C RWXMAAYKJDQVTF-UHFFFAOYSA-N 0.000 description 1
- YATYDCQGPUOZGZ-UHFFFAOYSA-N 2-(2-hydroxypropoxy)propan-1-ol;prop-2-enoic acid Chemical compound OC(=O)C=C.CC(O)COC(C)CO YATYDCQGPUOZGZ-UHFFFAOYSA-N 0.000 description 1
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- CFVWNXQPGQOHRJ-UHFFFAOYSA-N 2-methylpropyl prop-2-enoate Chemical compound CC(C)COC(=O)C=C CFVWNXQPGQOHRJ-UHFFFAOYSA-N 0.000 description 1
- VFZKVQVQOMDJEG-UHFFFAOYSA-N 2-prop-2-enoyloxypropyl prop-2-enoate Chemical compound C=CC(=O)OC(C)COC(=O)C=C VFZKVQVQOMDJEG-UHFFFAOYSA-N 0.000 description 1
- 229910001193 A-6 tool steel Inorganic materials 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000272470 Circus Species 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 206010053317 Hydrophobia Diseases 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 description 1
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 206010037742 Rabies Diseases 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 150000003926 acrylamides Chemical class 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 230000004430 ametropia Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- AFOSIXZFDONLBT-UHFFFAOYSA-N divinyl sulfone Chemical compound C=CS(=O)(=O)C=C AFOSIXZFDONLBT-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011953 free-radical catalyst Substances 0.000 description 1
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical class CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000004680 hydrogen peroxides Chemical class 0.000 description 1
- 239000012442 inert solvent Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 1
- WFKDPJRCBCBQNT-UHFFFAOYSA-N n,2-dimethylprop-2-enamide Chemical compound CNC(=O)C(C)=C WFKDPJRCBCBQNT-UHFFFAOYSA-N 0.000 description 1
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- YPHQUSNPXDGUHL-UHFFFAOYSA-N n-methylprop-2-enamide Chemical compound CNC(=O)C=C YPHQUSNPXDGUHL-UHFFFAOYSA-N 0.000 description 1
- 150000001451 organic peroxides Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- RPQRDASANLAFCM-UHFFFAOYSA-N oxiran-2-ylmethyl prop-2-enoate Chemical class C=CC(=O)OCC1CO1 RPQRDASANLAFCM-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- LYBIZMNPXTXVMV-UHFFFAOYSA-N propan-2-yl prop-2-enoate Chemical compound CC(C)OC(=O)C=C LYBIZMNPXTXVMV-UHFFFAOYSA-N 0.000 description 1
- PNXMTCDJUBJHQJ-UHFFFAOYSA-N propyl prop-2-enoate Chemical compound CCCOC(=O)C=C PNXMTCDJUBJHQJ-UHFFFAOYSA-N 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 208000014733 refractive error Diseases 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 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
- B29D11/00019—Production of simple or compound lenses with non-spherical faces, e.g. toric faces
-
- 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
- B29D11/00057—Production of contact lenses characterised by the shape or surface condition of the edge, e.g. flashless, burrless, smooth
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Eyeglasses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US49834883A | 1983-05-26 | 1983-05-26 | |
| US498348 | 1983-05-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2966384A AU2966384A (en) | 1984-12-18 |
| AU569089B2 true AU569089B2 (en) | 1988-01-21 |
Family
ID=23980702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU29663/84A Ceased AU569089B2 (en) | 1983-05-26 | 1984-05-14 | Improvements relating to molding hydrosel contact lenses |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0144385A4 (enrdf_load_stackoverflow) |
| JP (1) | JPS60501426A (enrdf_load_stackoverflow) |
| AU (1) | AU569089B2 (enrdf_load_stackoverflow) |
| CA (1) | CA1253368A (enrdf_load_stackoverflow) |
| WO (1) | WO1984004724A1 (enrdf_load_stackoverflow) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8402324A (nl) * | 1984-07-23 | 1986-02-17 | Visser Contactlenzenpraktijk B | Trifocale contactlens. |
| US4820038A (en) * | 1986-08-14 | 1989-04-11 | Coopervision, Inc. | Hydrogel contact lens |
| US4815690A (en) * | 1988-02-09 | 1989-03-28 | Shepherd Thomas H | Apparatus for the production of monolithic intraocular implants |
| US4896958A (en) * | 1988-02-18 | 1990-01-30 | Ames Keith S | Flexible contact lens for enhanced movement on the eye |
| JP2914508B2 (ja) * | 1990-01-24 | 1999-07-05 | ホーヤ株式会社 | レンズ成形用型 |
| DE4012478A1 (de) * | 1990-04-19 | 1991-10-24 | Heinrich Woehlk Inst Fuer Cont | Kontaktlinse mit lagestabilisierung |
| EP0574590B1 (en) * | 1992-01-06 | 1998-07-08 | Seiko Epson Corporation | Contact lens |
| EP0683416A1 (en) * | 1994-05-20 | 1995-11-22 | Alvis E. Blackburn | Corneal contact lens for controlled keratoreformation |
| US5733585A (en) * | 1996-09-06 | 1998-03-31 | Bausch & Lomb Incorporated | Apparatus for rotationally aligning a feature of an optical tool with a gate in an injection molding apparatus |
| EP0889348A1 (fr) * | 1997-07-03 | 1999-01-07 | Gérard Muller | Procédé de fabrication d'une lentille de contact à correct |
| AU2013200761A1 (en) * | 2013-02-13 | 2014-08-28 | Brien Holden Vision Institute | Contact lens stabilisation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698802A (en) * | 1969-12-29 | 1972-10-17 | Henry J Baron | Hydrophilic contact lens |
| US4084890A (en) * | 1972-08-04 | 1978-04-18 | Baron Henry J | Contact lens |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE948014C (de) * | 1950-02-22 | 1956-08-23 | Mueller Welt G M B H | Vorrichtung zum Herstellen von Augenhaftschalen |
| US2890486A (en) * | 1955-08-29 | 1959-06-16 | American Optical Corp | Mold for producing lens of any shape from a polymerizable material |
| US4121896A (en) * | 1976-03-24 | 1978-10-24 | Shepherd Thomas H | Apparatus for the production of contact lenses |
| US4208364A (en) * | 1976-03-24 | 1980-06-17 | Shepherd Thomas H | Process for the production of contact lenses |
| JPS6030529B2 (ja) * | 1977-04-28 | 1985-07-17 | 日本コンタクトレンズ製造株式会社 | シリコン樹脂製コンタクトレンズの製造用成形型 |
| US4285890A (en) * | 1977-04-28 | 1981-08-25 | Nippon Contact Lens Manufacturing Ltd. | Method for manufacturing silicone contact lenses |
| US4165158A (en) * | 1977-07-25 | 1979-08-21 | American Optical Corporation | Cast contact lenses and method for making same |
| US4257988A (en) * | 1978-09-12 | 1981-03-24 | Optical Warehouse Showroom And Manufacturing, Inc. | Method and assembly for molding optical lenses |
| US4198132A (en) * | 1978-12-14 | 1980-04-15 | Dow Corning Corporation | Contact lens |
| CS219738B1 (en) * | 1981-02-02 | 1983-03-25 | Otto Wichterle | Soft lenticullar contact lens with negative refraction |
| US4407766A (en) * | 1981-05-26 | 1983-10-04 | National Patent Development Corporation | Molds and procedure for producing truncated contact lenses |
-
1984
- 1984-05-14 AU AU29663/84A patent/AU569089B2/en not_active Ceased
- 1984-05-14 WO PCT/US1984/000742 patent/WO1984004724A1/en not_active Application Discontinuation
- 1984-05-14 JP JP59502171A patent/JPS60501426A/ja active Granted
- 1984-05-14 EP EP19840902179 patent/EP0144385A4/en not_active Ceased
- 1984-05-25 CA CA000455155A patent/CA1253368A/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3698802A (en) * | 1969-12-29 | 1972-10-17 | Henry J Baron | Hydrophilic contact lens |
| US4084890A (en) * | 1972-08-04 | 1978-04-18 | Baron Henry J | Contact lens |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0144385A1 (en) | 1985-06-19 |
| CA1253368A (en) | 1989-05-02 |
| JPS60501426A (ja) | 1985-08-29 |
| AU2966384A (en) | 1984-12-18 |
| JPH0521054B2 (enrdf_load_stackoverflow) | 1993-03-23 |
| EP0144385A4 (en) | 1985-10-14 |
| WO1984004724A1 (en) | 1984-12-06 |
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