CA1124469A - Method for molding ophthalmic lenses - Google Patents
Method for molding ophthalmic lensesInfo
- Publication number
- CA1124469A CA1124469A CA333,099A CA333099A CA1124469A CA 1124469 A CA1124469 A CA 1124469A CA 333099 A CA333099 A CA 333099A CA 1124469 A CA1124469 A CA 1124469A
- Authority
- CA
- Canada
- Prior art keywords
- inserts
- mold
- charge
- members
- lens
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000000465 moulding Methods 0.000 title claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 34
- 239000000057 synthetic resin Substances 0.000 claims abstract description 34
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims description 61
- 239000011347 resin Substances 0.000 claims description 61
- 230000009477 glass transition Effects 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 17
- 239000004417 polycarbonate Substances 0.000 claims description 15
- 229920000515 polycarbonate Polymers 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 8
- 229920000136 polysorbate Polymers 0.000 claims description 4
- 208000036366 Sensation of pressure Diseases 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 239000004431 polycarbonate resin Substances 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 claims 10
- 238000010276 construction Methods 0.000 claims 3
- 239000004416 thermosoftening plastic Substances 0.000 claims 2
- 235000019628 coolness Nutrition 0.000 claims 1
- 229920005992 thermoplastic resin Polymers 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 9
- 230000008023 solidification Effects 0.000 abstract description 9
- 239000004033 plastic Substances 0.000 description 33
- 229920003023 plastic Polymers 0.000 description 33
- 230000003287 optical effect Effects 0.000 description 31
- 239000013529 heat transfer fluid Substances 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000012778 molding material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- KVFIJIWMDBAGDP-UHFFFAOYSA-N ethylpyrazine Chemical compound CCC1=CN=CC=N1 KVFIJIWMDBAGDP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000007704 transition Effects 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
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C45/7306—Control circuits therefor
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
- B29C45/561—Injection-compression moulding
-
- 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
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
- B29C2045/7393—Heating or cooling of the mould alternately heating and cooling
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US93244278A | 1978-08-10 | 1978-08-10 | |
| US932,442 | 1986-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1124469A true CA1124469A (en) | 1982-06-01 |
Family
ID=25462329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA333,099A Expired CA1124469A (en) | 1978-08-10 | 1979-08-03 | Method for molding ophthalmic lenses |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5527300A (enrdf_load_html_response) |
| AU (1) | AU524955B2 (enrdf_load_html_response) |
| BE (1) | BE878148A (enrdf_load_html_response) |
| CA (1) | CA1124469A (enrdf_load_html_response) |
| DE (1) | DE2932499A1 (enrdf_load_html_response) |
| FR (1) | FR2432929B1 (enrdf_load_html_response) |
| GB (1) | GB2027386B (enrdf_load_html_response) |
| NL (1) | NL188020C (enrdf_load_html_response) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3864231A (en) * | 1972-01-31 | 1975-02-04 | Metallurgie Hoboken | Apparatus for measuring in a continuous manner oxygen in a molten metal |
| JPH06845B2 (ja) * | 1983-07-18 | 1994-01-05 | 出光石油化学株式会社 | 大型射出圧縮成形法 |
| DE3543357A1 (de) * | 1985-12-07 | 1987-06-11 | Bayer Ag | Verfahren und vorrichtung zur herstellung von kontaktlinsen-rohlingen mit fertig ausgebildeten rueckflaechen-geometrien |
| JPS62144914A (ja) * | 1985-12-18 | 1987-06-29 | Alps Electric Co Ltd | 光学部品の成型装置 |
| US4778632A (en) * | 1986-01-06 | 1988-10-18 | Neolens, Inc. | Injection molding equipment and method |
| JPH06105238B2 (ja) * | 1986-02-06 | 1994-12-21 | 新日本製鐵株式会社 | 高炉内ガスの酸素分圧測定方法 |
| JPS63139720A (ja) * | 1986-12-02 | 1988-06-11 | Aida Eng Ltd | 射出圧縮成形方法 |
| JP2545311Y2 (ja) * | 1990-10-30 | 1997-08-25 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | 眼科用具製造用成形型組立体 |
| US5160749A (en) * | 1990-10-30 | 1992-11-03 | Minnesota Mining And Manufacturing Company | Three piece mold assembly for making an ocular device |
| US5137441A (en) * | 1990-10-30 | 1992-08-11 | Minnesota Mining And Manufacturing Company | Mold assembly for making an ocular lens blank |
| WO1994012390A2 (en) * | 1992-11-24 | 1994-06-09 | United Technologies Corporation | Coolable rotor blade structure |
| WO2001043953A1 (en) * | 1999-12-15 | 2001-06-21 | Bausch & Lomb Incorporated | Method of molding lenses |
| US6695607B2 (en) * | 2001-12-17 | 2004-02-24 | Essilor International (Compagnie Generale D'optique) | Mold half-block for injection molding an optical article out of thermoplastic material, and a mold including such a half-block |
| CN109228163B (zh) * | 2018-10-17 | 2024-02-06 | 嘉亨家化股份有限公司 | 一种螺纹起始牙可调的注塑模具 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE918231C (de) * | 1952-11-25 | 1954-09-23 | Mueller Welt Fa | Verfahren und Vorrichtung zum Herstellen von Linsen mit Zentrierrand oder von mit einem Tragrand versehenen Haftglaesern aus thermoplastischen durchsichtigen Kunststoffen |
| FR2109470A5 (enrdf_load_html_response) * | 1970-10-19 | 1972-05-26 | Silor | |
| US4008031A (en) * | 1975-08-22 | 1977-02-15 | Weber Hermann P | Apparatus for injection molding lenses |
| FR2380117A1 (fr) * | 1977-02-11 | 1978-09-08 | Weber Hermann | Procede et dispositif pour le moulage par injection de lentilles ou verres |
-
1979
- 1979-07-18 AU AU49023/79A patent/AU524955B2/en not_active Expired
- 1979-07-19 NL NL7905618A patent/NL188020C/xx not_active IP Right Cessation
- 1979-07-26 GB GB7926077A patent/GB2027386B/en not_active Expired
- 1979-08-03 CA CA333,099A patent/CA1124469A/en not_active Expired
- 1979-08-08 BE BE0/196655A patent/BE878148A/xx not_active IP Right Cessation
- 1979-08-10 FR FR7920551A patent/FR2432929B1/fr not_active Expired
- 1979-08-10 JP JP10139779A patent/JPS5527300A/ja active Granted
- 1979-08-10 DE DE19792932499 patent/DE2932499A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB2027386A (en) | 1980-02-20 |
| JPS5527300A (en) | 1980-02-27 |
| NL188020B (nl) | 1991-10-16 |
| AU4902379A (en) | 1980-02-14 |
| NL188020C (nl) | 1992-03-16 |
| JPS6212019B2 (enrdf_load_html_response) | 1987-03-16 |
| BE878148A (fr) | 1979-12-03 |
| FR2432929A1 (fr) | 1980-03-07 |
| FR2432929B1 (fr) | 1986-04-25 |
| DE2932499A1 (de) | 1980-02-28 |
| AU524955B2 (en) | 1982-10-14 |
| GB2027386B (en) | 1982-09-22 |
| NL7905618A (nl) | 1980-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |